10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

Form 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2023

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ______________ to ______________

Commission file number: 814-00967

WHITEHORSE FINANCE, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware	45-4247759
(State or Other Jurisdiction of	(I.R.S. Employer
Incorporation or Organization)	Identification No.)
1450 Brickell Avenue, 31st Floor
Miami, Florida	33131
(Address of Principal Executive Offices)	(Zip Code)

(305) 381-6999

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common Stock, par value $0.001 per share	WHF	The Nasdaq Stock Market LLC
		(Nasdaq Global Select Market)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer”, “accelerated filer”, “smaller reporting company”, and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☐
Non-accelerated filer	☒	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ◻

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934). Yes ☐ No ⌧

As of August 4, 2023 the Registrant had 23,243,088 shares of common stock, $0.001 par value, outstanding.

WHITEHORSE FINANCE, INC.

TABLE OF CONTENTS

		Page
Part I.	Financial Information	3
Item 1.	Financial Statements	3
	Consolidated Statements of Assets and Liabilities as of June 30, 2023 (Unaudited) and December 31, 2022	3
	Consolidated Statements of Operations for the three and six months ended June 30, 2023 (Unaudited) and 2022 (Unaudited)	4
	Consolidated Statements of Changes in Net Assets for the three and six months ended June 30, 2023 (Unaudited) and 2022 (Unaudited)	5
	Consolidated Statements of Cash Flows for the six months ended June 30, 2023 (Unaudited) and 2022 (Unaudited)	7
	Consolidated Schedules of Investments as of June 30, 2023 (Unaudited) and December 31, 2022	9
	Notes to the Consolidated Financial Statements (Unaudited)	25
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	67
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	87
Item 4.	Controls and Procedures	89
Part II.	Other Information	89
Item 1.	Legal Proceedings	89
Item 1A.	Risk Factors	89
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	90
Item 3.	Defaults Upon Senior Securities	90
Item 4.	Mine Safety Disclosures	90
Item 5.	Other Information	90
Item 6.	Exhibits	90
	Signatures	91

2

Part I. Financial Information

Item 1. Financial Statements

WhiteHorse Finance, Inc.

Consolidated Statements of Assets and Liabilities

(in thousands, except share and per share data)

		June 30, 2023		December 31, 2022
		(Unaudited)
Assets
Investments, at fair value
Non-controlled/non-affiliate company investments	$	607,111	$	650,535
Non-controlled affiliate company investments		6,262		9,533
Controlled affiliate company investments		114,979		100,160
Total investments, at fair value (amortized cost $760,023 and $782,429, respectively)		728,352		760,228
Cash and cash equivalents		10,412		9,508
Restricted cash and cash equivalents		10,624		14,683
Restricted foreign currency (cost of $2,027 and $2,066, respectively)		2,049		2,073
Interest and dividend receivable		7,220		7,814
Amounts receivable on unsettled investment transactions		11,770		283
Escrow receivable		711		711
Prepaid expenses and other receivables		1,039		1,174
Total assets	$	772,177	$	796,474
Liabilities
Debt (net of unamortized debt issuance costs of $3,938 and $4,718, respectively)	$	424,711	$	440,427
Distributions payable		8,600		8,251
Management fees payable		3,705		3,860
Incentive fees payable		5,115		5,618
Interest payable		2,750		2,774
Accounts payable and accrued expenses		1,467		2,329
Advances received from unfunded credit facilities		524		825
Unrealized depreciation on foreign currency forward contracts		9		3
Total liabilities		446,881		464,087
Commitments and contingencies (See Note 8)
Net assets
Common stock, 23,243,088 and 23,243,088 shares issued and outstanding, par value $0.001 per share, respectively, and 100,000,000 shares authorized		23		23
Paid-in capital in excess of par		339,240		339,240
Accumulated earnings (losses)		(13,967)		(6,876)
Total net assets		325,296		332,387
Total liabilities and total net assets	$	772,177	$	796,474
Number of shares outstanding		23,243,088		23,243,088
Net asset value per share	$	14.00	$	14.30

See notes to the consolidated financial statements

3

WhiteHorse Finance, Inc.

Consolidated Statements of Operations (Unaudited)

(in thousands, except share and per share data)

		Three months ended June 30,				Six months ended June 30,
		2023		2022		2023		2022
Investment income
From non-controlled/non-affiliate company investments
Interest income	$	19,307	$	15,672	$	38,928	$	31,881
Payment-in-kind income		1,073		356		2,305		888
Fee income		920		679		1,953		1,141
Dividend income		17		79		32		168
From non-controlled affiliate company investments
Interest income		—		3		—		13
Payment-in-kind income		115		70		66		120
Dividend income		—		109		84		240
From controlled affiliate company investments
Interest income		2,328		1,459		4,538		2,586
Payment-in-kind income		496		—		908		—
Dividend income		1,339		1,573		2,945		2,997
Total investment income		25,595		20,000		51,759		40,034
Expenses
Interest expense		7,334		4,945		14,859		9,719
Base management fees		3,705		3,908		7,416		7,859
Performance-based incentive fees		2,648		1,837		5,324		3,264
Administrative service fees		170		170		341		341
General and administrative expenses		896		1,088		2,023		2,036
Total expenses		14,753		11,948		29,963		23,219
Net investment income before excise tax		10,842		8,052		21,796		16,815
Excise tax		250		175		500		399
Net investment income after excise tax		10,592		7,877		21,296		16,416
Realized and unrealized gains (losses) on investments and foreign currency transactions
Net realized gains (losses)
Non-controlled/non-affiliate company investments		5		686		336		(17,498)
Non-controlled affiliate company investments		(339)		1,725		(339)		1,725
Foreign currency transactions		41		(61)		402		(342)
Foreign currency forward contracts		4		(8)		(3)		(8)
Net realized gains (losses)		(289)		2,342		396		(16,123)
Net change in unrealized appreciation (depreciation)
Non-controlled/non-affiliate company investments		(2,330)		(4,546)		(4,427)		12,570
Non-controlled affiliate company investments		(3,022)		(586)		(4,522)		(2,206)
Controlled affiliate company investments		(600)		1,502		(521)		1,672
Translation of assets and liabilities in foreign currencies		(458)		756		(829)		727
Foreign currency forward contracts		(12)		4		(6)		—
Net change in unrealized appreciation (depreciation)		(6,422)		(2,870)		(10,305)		12,763
Net realized and unrealized gains (losses) on investments and foreign currency transactions		(6,711)		(528)		(9,909)		(3,360)
Net increase in net assets resulting from operations	$	3,881	$	7,349	$	11,387	$	13,056
Per Common Share Data
Basic and diluted earnings per common share	$	0.17	$	0.32	$	0.49	$	0.56
Dividends and distributions declared per common share	$	0.37	$	0.36	$	0.80	$	0.71
Basic and diluted weighted average common shares outstanding		23,243,088		23,240,651		23,243,088		23,215,792

See notes to the consolidated financial statements

4

WhiteHorse Finance, Inc.

Consolidated Statements of Changes in Net Assets (Unaudited)

(in thousands, except share and per share data)

	Common Stock
	Shares		Par amount		Paid-in Capital in Excess of Par		Accumulated Earnings (Losses)		Total Net Assets
Balance as of December 31, 2022	23,243,088	$	23	$	339,240	$	(6,876)	$	332,387
Net increase in net assets resulting from operations:
Net investment income after excise tax	—		—		—		10,704		10,704
Net realized gains (losses) on investments	—		—		—		685		685
Net change in unrealized appreciation (depreciation) on investments	—		—		—		(3,883)		(3,883)
Distributions declared	—		—		—		(9,878)		(9,878)
Balance as of March 31, 2023	23,243,088	$	23	$	339,240	$	(9,248)	$	330,015
Net increase in net assets resulting from operations:
Net investment income after excise tax	—		—		—		10,592		10,592
Net realized gains (losses) on investments	—		—		—		(289)		(289)
Net change in unrealized appreciation (depreciation) on investments	—		—		—		(6,422)		(6,422)
Distributions declared	—		—		—		(8,600)		(8,600)
Balance as of June 30, 2023	23,243,088	$	23	$	339,240	$	(13,967)	$	325,296

5

WhiteHorse Finance, Inc.

Consolidated Statements of Changes in Net Assets (Unaudited)

(in thousands, except share and per share data)

	Common Stock
	Shares		Par amount		Paid-in Capital in Excess of Par		Accumulated Earnings (Loss)		Total Net Assets
Balance as of December 31, 2021	23,162,667	$	23	$	339,161	$	10,567	$	349,751
Stock issued in connection with public offering	16,678		—		197		—		197
Stock issued in connection with dividend reinvestment plan	32,068		—		498		—		498
Net increase in net assets resulting from operations:
Net investment income after excise tax	—		—		—		8,539		8,539
Net realized gains (losses) on investments	—		—		—		(18,465)		(18,465)
Net change in unrealized appreciation (depreciation) on investments	—		—		—		15,633		15,633
Distributions declared	—		—		—		(8,234)		(8,234)
Balance as of March 31, 2022	23,211,413	$	23	$	339,856	$	8,040	$	347,919
Stock issued in connection with at-the-market offering	—		—		(72)		—		(72)
Stock issued in connection with dividend reinvestment plan	31,675		—		480		—		480
Net increase in net assets resulting from operations:
Net investment income after excise tax	—		—		—		7,877		7,877
Net realized gains (losses) on investments	—		—		—		2,342		2,342
Net change in unrealized appreciation (depreciation) on investments	—		—		—		(2,870)		(2,870)
Distributions declared	—		—		—		(8,251)		(8,251)
Balance as of June 30, 2022	23,243,088	$	23	$	340,264	$	7,138	$	347,425

See notes to the consolidated financial statements

6

WhiteHorse Finance, Inc.

Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

	Six months ended June 30,
	2023		2022
Cash flows from operating activities
Net increase in net assets resulting from operations	$	11,387	$	13,056
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by / (used in) operating activities:
Paid-in-kind income		(3,668)		(956)
Net realized (gains) losses on investments		3		15,773
Net unrealized (appreciation) depreciation on investments		9,470		(12,036)
Net unrealized (appreciation) depreciation on translation of assets and liabilities in foreign currencies		829		(727)
Net unrealized (appreciation) depreciation on foreign currency forward contracts		6		—
Accretion of discount		(2,070)		(2,976)
Amortization of deferred financing costs		782		758
Acquisition of investments		(65,257)		(170,451)
Proceeds from principal payments and sales of portfolio investments		56,765		146,822
Proceeds from sales of portfolio investments to STRS JV		36,633		75,415
Net changes in operating assets and liabilities:
Interest and dividend receivable		594		1,234
Escrow receivable		—		585
Prepaid expenses and other receivables		135		402
Amounts receivable on unsettled investment transactions		(11,487)		(6,271)
Amounts payable on unsettled investment transactions		—		7,496
Management fees payable		(155)		142
Incentive fees payable		(503)		(2,782)
Accounts payable and accrued expenses		(859)		(967)
Interest payable		(24)		30
Advances received from unfunded credit facilities		(301)		(314)
Net cash provided by / (used in) operating activities		32,280		64,233
Cash flows from financing activities
Proceeds from issuance of common stock, net of offering costs		—		124
Borrowings		45,558		86,469
Repayments of debt		(62,902)		(138,915)
Deferred financing costs		(2)		(582)
Distributions paid to common stockholders, net of distributions reinvested		(18,129)		(15,477)
Net cash provided by / (used in) financing activities		(35,475)		(68,381)
Effect of exchange rate changes on cash		16		276
Net change in cash, cash equivalents and restricted cash		(3,179)		(3,872)
Cash, cash equivalents and restricted cash at beginning of period		26,264		22,468
Cash, cash equivalents and restricted cash at end of period	$	23,085	$	18,596
Supplemental and non-cash disclosure of cash flow information:
Interest paid	$	14,101	$	8,931
Distributions reinvested		—		978
Non-cash exchanges of investments		1,840		25,000

See notes to the consolidated financial statements

7

WhiteHorse Finance, Inc.

Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated statements of assets and liabilities that sum to the total of the same amounts presented in the consolidated statements of cash flows:

	As of June 30,
	2023		2022
Cash and cash equivalents	$	10,412	$	9,231
Restricted cash and cash equivalents		10,624		8,769
Restricted foreign currency		2,049		596
Total cash, cash equivalents and restricted cash presented in consolidated statements of cash flows	$	23,085	$	18,596

See notes to the consolidated financial statements

8

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Debt Investments
Advertising
M&M OpCo. LLC (d/b/a Escalent, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	8.00%	13.34%	04/07/23	04/09/29	4,750	$	4,613	$	4,613	1.42	%
M&M OpCo. LLC (d/b/a Escalent, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	8.00%	13.34%	04/07/23	04/09/29	—		—		—	—
										4,613		4,613	1.42
Air Freight & Logistics
Gulf Winds International Acquisition LLC (d/b/a Gulf Winds International, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	12.19%	12/16/22	12/18/28	4,829		4,697		4,731	1.45
Gulf Winds International Acquisition LLC (d/b/a Gulf Winds International, Inc.)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	12.19%	12/16/22	12/18/28	—		—		5	—
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.43%	07/12/21	07/12/26	11,091		10,957		10,542	3.24
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.48%	07/12/21	07/12/26	1,182		1,167		1,123	0.35
Transervice Holdings, Inc. (d/b/a Transervice Logistics, Inc.)	First Lien Secured Term Loan	2.00%	SOFR	7.50%	12.71%	06/29/23	06/29/28	9,000		8,730		8,730	2.68
										25,551		25,131	7.72
Alternative Carriers
Patagonia Holdco LLC (d/b/a Lumen LATAM)	First Lien Secured Term Loan	0.50%	SOFR	5.75%	10.79%	08/05/22	08/01/29	14,515		12,230		12,414	3.82
										12,230		12,414	3.82
Application Software
Atlas Purchaser, Inc. (d/b/a Aspect Software, Inc.)	First Lien Secured Term Loan	0.75%	LIBOR	5.25%	10.39%	08/29/22	05/08/28	3,082		2,643		2,348	0.72
Atlas Purchaser, Inc. (d/b/a Aspect Software, Inc.)	Second Lien Secured Term Loan	0.75%	SOFR	9.00%	14.50%	05/03/21	05/07/29	15,000		14,670		10,876	3.34
MBS Highway, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.63%	10/13/22	10/13/27	9,429		9,227		9,217	2.83
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	12.34%	06/14/19	12/29/23	3,164		3,163		3,101	0.95
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	12.34%	06/14/19	12/29/23	267		267		261	0.08
UserZoom Technologies, Inc. (d/b/a UserZoom, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.42%	01/12/23	04/05/29	9,819		9,546		9,626	2.95
										39,516		35,429	10.87
Asset Management & Custody Banks
JZ Capital Partners Ltd.⁽⁴⁾⁽⁵⁾⁽²²⁾	First Lien Secured Term Loan	1.00%	SOFR	7.00%	12.22%	01/26/22	01/26/27	10,286		10,139		10,181	3.13
JZ Capital Partners Ltd.⁽⁴⁾⁽⁵⁾⁽⁷⁾⁽²²⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.00%	12.22%	01/26/22	01/26/27	—		—		24	0.01
										10,139		10,205	3.14
Automotive Retail
Team Car Care Holdings, LLC (Heartland Auto)⁽¹²⁾	First Lien Secured Term Loan	1.00%	Base Rate	7.48%	12.74%	02/16/18	06/28/24	13,902		13,868		13,902	4.27
										13,868		13,902	4.27
Broadcasting
Coastal Television Broadcasting Group LLC	First Lien Secured Term Loan	1.00%	SOFR	7.00%	12.43%	12/30/21	12/30/26	7,573		7,467		7,417	2.28
Coastal Television Broadcasting Group LLC(7)	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	12.43%	12/30/21	12/30/26	—		—		(2)	—
										7,467		7,415	2.28
Broadline Retail
BBQ Buyer, LLC (d/b/a BBQ Guys)	First Lien Secured Term Loan	1.50%	SOFR	10.50%	15.70% (13.70% Cash + 2.00% PIK)	08/28/20	08/28/25	12,837		12,700		12,694	3.90
BBQ Buyer, LLC (d/b/a BBQ Guys)	First Lien Secured Delayed Draw Loan	1.50%	SOFR	10.50%	15.70% (13.70% Cash + 2.00% PIK)	12/02/21	08/28/25	2,617		2,588		2,588	0.80
Luxury Brand Holdings, Inc. (d/b/a Ross-Simons, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.65%	12/04/20	06/04/26	5,280		5,224		5,266	1.62
Potpourri Group, Inc.	First Lien Secured Term Loan	1.50%	SOFR	8.25%	13.50%	07/03/19	07/03/24	13,993		13,930		13,993	4.30
										34,442		34,541	10.62
Building Products
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽¹³⁾	First Lien Secured Term Loan	1.00%	CDOR	6.00%	11.13%	12/17/21	12/17/26	8,313		6,414		6,277	1.92
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽⁷⁾⁽¹³⁾	First Lien Secured Revolving Loan	1.00%	CDOR	6.00%	11.13%	12/17/21	12/17/26	—		—		13	—
PFB Holdco, Inc. (d/b/a PFB Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.23%	12/17/21	12/17/26	2,025		1,997		2,013	0.62
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.23%	12/17/21	12/17/26	—		—		2	—
Trimlite Buyer LLC (d/b/a Trimlite LLC)⁽⁵⁾⁽¹³⁾⁽²³⁾	First Lien Secured Term Loan	1.00%	CDOR	6.00%	11.38%	07/27/21	07/27/26	19,624		15,439		14,661	4.51
										23,850		22,966	7.05

See notes to the consolidated financial statements

9

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Cable & Satellite
Bulk Midco, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.70% (11.70% Cash + 1.00% PIK)	10/28/22	06/10/24	19,208	$	19,142	$	18,668	5.74	%
Bulk Midco, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	7.50%	12.70% (11.70% Cash + 1.00% PIK)	10/28/22	06/10/24	2,000		1,977		1,944	0.60
										21,119		20,612	6.34
Commodity Chemicals
FGI Acquisition Corp. (d/b/a Flexitallic Group SAS)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.89%	10/28/19	10/29/26	16,277		15,795		16,106	4.95
US Methanol Midco LLC (d/b/a US Methanol LLC)⁽²⁴⁾	First Lien Secured Term Loan	1.00%	SOFR	7.75%	12.93% PIK	12/20/22	12/20/27	4,972		4,868		4,874	1.50
US Methanol Midco LLC (d/b/a US Methanol LLC)⁽⁴⁾⁽⁷⁾⁽²⁴⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.75%		12/20/22	12/20/27	—		—		(81)	(0.02)
										20,663		20,899	6.43
Construction Materials
Claridge Products and Equipment, LLC	First Lien Secured Term Loan	1.00%	SOFR	8.00%	13.39% (11.89% Cash + 1.50% PIK)	12/30/20	12/29/25	7,409		7,338		6,907	2.12
Claridge Products and Equipment, LLC(7)(12)	First Lien Secured Revolving Loan	1.00%	Base Rate	8.00%	13.09% (11.59% Cash + 1.50% PIK)	12/30/20	12/29/25	632		627		568	0.17
										7,965		7,475	2.29
Data Processing & Outsourced Services
Future Payment Technologies, L.P.	First Lien Secured Term Loan	1.00%	SOFR	8.25%	13.51%	12/23/16	12/05/25	22,288		22,179		22,129	6.80
										22,179		22,129	6.80
Distributors
Foodservices Brand Group, LLC (d/b/a Crown Brands Group)	First Lien Secured Term Loan	1.00%	SOFR	8.00%	13.29%	11/22/22	12/09/25	357		357		305	0.09
Foodservices Brand Group, LLC (d/b/a Crown Brands Group)⁽¹⁷⁾⁽¹⁹⁾	Second Lien Secured Term Loan	1.50%	SOFR	6.50%	11.70%	11/22/22	01/08/26	5,171		5,119		1,429	0.44
										5,476		1,734	0.53
Diversified Chemicals
Manchester Acquisition Sub LLC (d/b/a Draslovka Holding AS)	First Lien Secured Term Loan	0.75%	SOFR	5.75%	11.18%	11/16/21	12/01/26	7,880		7,582		7,102	2.18
Chase Products Co. (f/k/a Starco)⁽⁶⁾⁽²⁶⁾	First Lien Secured Term Loan	N/A	N/A	12.00%	12.00% PIK	03/16/23	03/16/28	2,790		2,790		2,589	0.80
										10,372		9,691	2.98
Diversified Support Services
NNA Services, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.14%	08/27/21	08/27/26	9,635		9,559		9,262	2.85
										9,559		9,262	2.85
Education Services
EducationDynamics, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.00%	12.20% (11.70% Cash + 0.50% PIK)	09/15/21	09/15/26	12,919		12,755		12,418	3.81
EducationDynamics, LLC(4)(7)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.00%	12.20% (11.70% Cash + 0.50% PIK)	09/15/21	09/15/26	—		—		(44)	(0.01)
EducationDynamics, LLC(7)	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	12.20% (11.70% Cash + 0.50% PIK)	09/15/21	09/15/26	—		—		(31)	(0.01)
EducationDynamics, LLC(4)	Subordinated Unsecured Term Loan	N/A	N/A	4.00%	4.00%	09/15/21	03/15/27	167		167		167	0.05
										12,922		12,510	3.84
Electric Utilities
CleanChoice Energy, Inc.	First Lien Secured Term Loan	1.00%	SOFR	7.58%	12.73%	10/12/21	10/12/26	15,955		15,672		15,743	4.84
										15,672		15,743	4.84
Environmental & Facilities Services
Industrial Specialty Services USA LLC	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.14%	12/31/21	12/31/26	11,827		11,661		11,408	3.51
										11,661		11,408	3.51

See notes to the consolidated financial statements

10

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Health Care Facilities
Bridgepoint Healthcare, LLC	First Lien Secured Term Loan	1.00%	LIBOR	7.75%	12.90%	10/05/21	10/05/26	10,145	$	10,012	$	9,902	3.04	%
Bridgepoint Healthcare, LLC(7)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	7.75%	12.90%	10/05/21	10/05/26	—		—		(14)	—
Bridgepoint Healthcare, LLC(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	7.75%	12.90%	10/05/21	10/05/26	—		—		(17)	(0.01)
										10,012		9,871	3.03
Health Care Services
Lab Logistics, LLC	First Lien Secured Term Loan	1.00%	SOFR	9.25%	14.44%	10/16/19	09/25/23	5,462		5,449		5,462	1.68
Lab Logistics, LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	9.25%	14.43%	10/16/19	09/25/23	5,104		5,102		5,104	1.57
PG Dental New Jersey Parent, LLC	First Lien Secured Term Loan	1.00%	LIBOR	9.50%	14.69% (13.44% Cash + 1.25% PIK)	11/25/20	11/25/25	13,276		13,137		12,483	3.84
PG Dental New Jersey Parent, LLC⁽¹²⁾	First Lien Secured Revolving Loan	1.00%	Base Rate	9.00%	15.85% (14.60% Cash + 1.25% PIK)	11/25/20	11/25/25	704		696		662	0.20
										24,384		23,711	7.29
Health Care Supplies
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)	First Lien Secured Term Loan	0.75%	SOFR	7.50%	12.88%	02/23/22	02/23/28	20,358		19,964		19,333	5.94
										19,964		19,333	5.94
Heavy Electrical Equipment
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.64%	06/25/21	06/25/26	13,572		13,400		13,352	4.10
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.25%	11.64%	07/11/22	06/25/26	2,090		2,053		2,056	0.63
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)⁽⁷⁾⁽¹²⁾	First Lien Secured Revolving Loan	1.00%	Base Rate	6.25%	11.58%	06/25/21	06/25/24	1,045		1,039		1,041	0.32
										16,492		16,449	5.05
Home Furnishings
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.61%	10/12/21	10/12/26	20,721		20,447		20,505	6.30
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.75%	10/12/21	10/12/26	832		821		828	0.25
Hollander Intermediate LLC (d/b/a Hollander Sleep Products, LLC)	First Lien Secured Term Loan	2.00%	SOFR	8.75%	13.97%	09/19/22	09/21/26	4,800		4,766		4,301	1.32
										26,034		25,634	7.87
Household Appliances
Token Buyer, Inc. (d/b/a Therm-O-Disc, Inc.)	First Lien Secured Term Loan	0.50%	SOFR	6.00%	11.20%	05/26/22	05/31/29	7,178		6,688		6,171	1.90
										6,688		6,171	1.90
Household Products
The Kyjen Company, LLC (d/b/a Outward Hound)	First Lien Secured Term Loan	1.00%	SOFR	7.50%	13.14% (12.14% Cash + 1.00% PIK)	04/05/21	04/05/26	11,357		11,264		10,564	3.25
The Kyjen Company, LLC (d/b/a Outward Hound)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.50%	13.14% (12.14% Cash + 1.00% PIK)	04/05/21	04/05/26	—		—		(58)	(0.02)
										11,264		10,506	3.23
Industrial Machinery & Supplies & Components
Project Castle, Inc. (d/b/a Material Handling Systems, Inc.)	First Lien Secured Term Loan	0.50%	SOFR	5.50%	10.41%	06/09/22	06/01/29	8,313		7,560		6,899	2.12
										7,560		6,899	2.12
Interactive Media & Services
MSI Information Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	7.75%	12.95%	04/25/22	04/24/26	7,531		7,425		7,157	2.20
MSI Information Services, Inc.(7)(12)	First Lien Secured Revolving Loan	1.00%	Base Rate	6.95%	14.60%	04/25/22	04/24/26	375		370		332	0.10
										7,795		7,489	2.30
Investment Banking & Brokerage
JVMC Holdings Corp. (fka RJO Holdings Corp)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.71%	02/28/19	02/28/24	9,325		9,312		9,325	2.87
										9,312		9,325	2.87

See notes to the consolidated financial statements

11

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
IT Consulting & Other Services
ATSG, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.72%	11/12/21	11/12/26	3,809	$	3,758	$	3,735	1.15	%
										3,758		3,735	1.15
Leisure Facilities
Honors Holdings, LLC (d/b/a Orange Theory)⁽¹⁵⁾⁽¹⁶⁾	First Lien Secured Term Loan	1.00%	SOFR	8.85%	14.24%	09/06/19	09/06/24	9,440		9,359		9,286	2.85
Honors Holdings, LLC (d/b/a Orange Theory)⁽¹⁵⁾⁽¹⁶⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.91%	12.32%	09/06/19	09/06/24	4,649		4,625		4,573	1.41
Lift Brands, Inc.	First Lien Secured Term Loan A	1.00%	SOFR	7.50%	12.70%	06/29/20	06/29/25	5,546		5,512		5,517	1.70
Lift Brands, Inc.	First Lien Secured Term Loan B	N/A	N/A	9.50%	9.50% PIK	06/29/20	06/29/25	1,383		1,371		1,314	0.40
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁹⁾	First Lien Secured Term Loan C	N/A	N/A	9.50%	9.50% PIK	06/29/20	N/A	1,580		1,577		1,563	0.48
										22,444		22,253	6.84
Leisure Products
Playmonster Group LLC(6)(20)	Priority First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.02% PIK	12/09/22	06/08/26	1,073		1,045		1,030	0.32
Playmonster Group LLC⁽⁶⁾⁽¹⁷⁾⁽²⁰⁾	First Lien Secured Term Loan	1.00%	SOFR	9.00%	14.22% PIK	01/24/22	06/08/26	3,930		3,661		2,396	0.74
Leviathan Intermediate Holdco, LLC	First Lien Secured Term Loan	1.50%	SOFR	7.50%	12.89%	12/27/22	12/27/27	10,398		10,118		10,242	3.15
Leviathan Intermediate Holdco, LLC⁽⁷⁾	First Lien Secured Revolving Loan	1.50%	SOFR	7.50%	12.89%	12/27/22	12/27/27	76		74		81	0.02
										14,898		13,749	4.23
Life Sciences Tools & Services
LSCS Holdings, Inc. (d/b/a Eversana Life Science Services, LLC)	Second Lien Secured Term Loan	0.50%	LIBOR	8.00%	13.19%	11/23/21	12/16/29	5,000		4,939		4,827	1.48
										4,939		4,827	1.48
Office Services & Supplies
American Crafts, LC⁽¹⁴⁾⁽²⁵⁾	Priority First Lien Secured Term Loan	1.00%	SOFR	8.50%	13.69% PIK	12/22/22	05/28/26	4,750		4,750		4,605	1.42
American Crafts, LC⁽¹⁴⁾⁽²⁵⁾	First Lien Secured Term Loan	1.00%	SOFR	8.50%	13.69% PIK	05/28/21	05/28/26	8,791		8,720		6,827	2.10
American Crafts, LC⁽¹⁴⁾⁽²⁵⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	8.50%	13.69% PIK	01/25/22	05/28/26	1,476		1,458		1,146	0.35
Empire Office, Inc.	First Lien Secured Term Loan	1.50%	SOFR	6.75%	12.00%	04/12/19	04/12/24	11,342		11,296		11,342	3.49
Empire Office, Inc.	First Lien Secured Delayed Draw Loan	1.50%	SOFR	6.75%	12.00%	08/17/21	04/12/24	4,640		4,608		4,640	1.43
										30,832		28,560	8.79
Personal Care Products
Inspired Beauty Brands, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	7.00%	12.32%	12/30/20	12/30/25	11,205		11,093		11,094	3.41
Inspired Beauty Brands, Inc.(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	7.00%	12.21%	12/30/20	12/30/25	88		88		88	0.03
										11,181		11,182	3.44
Real Estate Development
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.89%	11/04/22	11/04/27	4,630		4,529		4,584	1.41
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.50%	12.89%	11/04/22	11/04/27	5,573		5,483		5,556	1.71
										10,012		10,140	3.12
Real Estate Operating Companies
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)	First Lien Secured Term Loan	1.00%	SOFR	8.00%	13.20% (12.70% Cash + 0.50% PIK)	12/02/22	12/02/27	5,139		5,003		5,012	1.54
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	8.00%	13.23% (12.73% Cash + 0.50% PIK)	12/02/22	12/02/27	468		460		442	0.14
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	8.00%	13.24% (12.74% Cash + 0.50% PIK)	12/02/22	12/02/27	474		462		463	0.14
										5,925		5,917	1.82
Research & Consulting Services
Aeyon LLC⁽¹⁵⁾	First Lien Secured Term Loan	1.00%	SOFR	8.88%	13.97%	02/10/22	02/10/27	8,865		8,737		8,860	2.72
ALM Media, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.39%	11/25/19	11/25/24	12,932		12,859		12,853	3.95
										21,596		21,713	6.67

See notes to the consolidated financial statements

12

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Specialized Consumer Services
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	11/16/21	11/16/27	11,733	$	11,561	$	11,308	3.48	%
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	12.00%	09/30/21	09/30/26	11,463		11,313		11,463	3.52
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	12.00%	09/30/21	09/30/26	—		—		9	—
										22,874		22,780	7.00
Specialized Finance
WHF STRS Ohio Senior Loan Fund LLC(4)(5)(7)(9)(14)(18)	Subordinated Note	N/A	LIBOR	6.50%	11.66%	07/19/19	N/A	81,472		81,472		81,472	25.05
										81,472		81,472	25.05
Systems Software
Arcstor Midco, LLC (d/b/a Arcserve (USA), LLC⁽¹⁷⁾	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.70% (8.95% Cash + 3.75% PIK)	03/16/21	03/16/27	20,237		19,568		15,188	4.67
										19,568		15,188	4.67
Technology Hardware, Storage & Peripherals
Telestream Holdings Corporation	First Lien Secured Term Loan	1.00%	SOFR	9.75%	14.99%	10/15/20	10/15/25	15,844		15,607		15,758	4.84
Telestream Holdings Corporation(7)	First Lien Secured Revolving Loan	1.00%	SOFR	9.75%	14.94%	10/15/20	10/15/25	932		918		930	0.29
										16,525		16,688	5.13
Total Debt Investments									$	714,793	$	691,671	212.59	%
Equity Investments(21)
Advertising
Avision Holdings, LLC (d/b/a Avision Sales Group)⁽⁴⁾	Class A LLC Interests	N/A	N/A	N/A	N/A	12/15/21	N/A	218	$	268	$	296	0.09	%
Merriman Holdings LP (d/b/a Escalent, Inc.)⁽⁴⁾	Class A Units	N/A	N/A	N/A	N/A	04/07/23	N/A	277		333		333	0.10
										601		629	0.19
Air Freight & Logistics
Motivational CIV, LLC (d/b/a Motivational Fulfillment)⁽⁴⁾	Class B Units	N/A	N/A	N/A	N/A	07/12/21	N/A	1,250		1,250		424	0.13
										1,250		424	0.13
Broadline Retail
BBQ Buyer, LLC (d/b/a BBQGuys)⁽⁴⁾	Shares	N/A	N/A	N/A	N/A	08/28/20	N/A	1,100		1,100		1,176	0.36
Ross-Simons Topco, LP (d/b/a Ross-Simons, Inc.)⁽⁴⁾	Preferred Units	N/A	N/A	8.00%	8.00% PIK	12/04/20	N/A	600		514		731	0.22
										1,614		1,907	0.58
Building Products
PFB Holding Company, LLC (d/b/a PFB Corporation)⁽⁴⁾⁽¹³⁾	Class A Units	N/A	N/A	N/A	N/A	12/17/21	N/A	1		423		1,143	0.35
										423		1,143	0.35
Diversified Chemicals
Pressurized Holdings, LLC (f/k/a Starco)⁽⁴⁾⁽⁶⁾⁽²⁶⁾	Common Units	N/A	N/A	N/A	N/A	03/16/23	N/A	—		—		—	—
Pressurized Holdings, LLC (f/k/a Starco)⁽⁴⁾⁽⁶⁾⁽⁸⁾⁽²⁶⁾	Preferred Units	N/A	N/A	N/A	14.00% PIK	03/16/23	N/A	—		4,537		247	0.08
										4,537		247	0.08
Diversified Financial Services
SFS Global Holding Company (d/b/a Sigue Corporation)⁽⁴⁾	Warrants	N/A	N/A	N/A	N/A	06/28/18	12/28/25	—		—		—	—
Sigue Corporation(4)	Warrants	N/A	N/A	N/A	N/A	06/28/18	12/28/25	22		2,890		3,397	1.04
										2,890		3,397	1.04
Diversified Support Services
Quest Events, LLC(4)	Preferred Units	N/A	N/A	N/A	N/A	12/28/18	12/08/25	350		350		200	0.06
ImageOne Industries, LLC(4)	Common A Units	N/A	N/A	N/A	N/A	09/20/19	N/A	232		6		21	0.01
										356		221	0.07
Education Services
Eddy Acquisitions, LLC (d/b/a EducationDynamics, LLC)⁽⁴⁾	Preferred Units	N/A	N/A	12.00%	12.00%	09/15/21	N/A	167		167		73	0.02
										167		73	0.02

See notes to the consolidated financial statements

13

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Environmental & Facilities Services
BPII-JL Group Holdings LP (d/b/a Juniper Landscaping Holdings LLC)⁽⁴⁾	Class A Units	N/A	N/A	N/A	N/A	12/29/21	N/A	83	$	825	$	972	0.30	%
										825		972	0.30
Industrial Machinery & Supplies & Components
BL Products Parent, LP (d/b/a Bishop Lifting Products, Inc.)⁽⁴⁾	Class A Units	N/A	N/A	N/A	N/A	02/01/22	N/A	733		788		1,190	0.37
										788		1,190	0.37
Interactive Media & Services
What If Media Group, LLC(4)	Common Units	N/A	N/A	N/A	N/A	07/02/21	N/A	851		851		1,618	0.50
										851		1,618	0.50
IT Consulting & Other Services
CX Holdco LLC (d/b/a Cennox Inc.)⁽⁴⁾	Common Units	N/A	N/A	N/A	N/A	05/04/21	N/A	1,068		1,116		1,406	0.43
Keras Holdings, LLC (d/b/a KSM Consulting, LLC)⁽⁴⁾	Shares	N/A	N/A	N/A	N/A	12/31/20	N/A	496		496		425	0.13
Vistria Blocked MGT Investor, LP (d/b/a MGT Consulting Group)⁽⁴⁾	Series A Units	N/A	N/A	N/A	N/A	04/10/23	N/A	—		314		314	0.10
										1,926		2,145	0.66
Leisure Facilities
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁴⁾	Class A Common Stock	N/A	N/A	N/A	N/A	06/29/20	N/A	2		1,941		182	0.06
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁴⁾	Warrants	N/A	N/A	N/A	N/A	06/29/20	06/28/28	1		793		74	0.02
										2,734		256	0.08
Leisure Products
Playmonster Group Equity, Inc. (d/b/a Playmonster Group LLC)⁽⁴⁾⁽⁶⁾⁽⁸⁾⁽²⁰⁾	Preferred Stock	N/A	N/A	14.00%	14.00% PIK	01/24/22	N/A	36		3,600		—	—
Playmonster Group Equity, Inc. (d/b/a Playmonster Group LLC)⁽⁴⁾⁽⁶⁾⁽²⁰⁾	Common Stock	N/A	N/A	N/A	N/A	01/24/22	N/A	72		460		—	—
										4,060		—	—
Office Services & Supplies
American Crafts Holdings, LLC (d/b/a American Crafts, LC)⁽⁴⁾⁽¹⁴⁾⁽²⁵⁾	Warrants	N/A	N/A	N/A	N/A	12/22/22	12/22/32	—		—		—	—
New American Crafts Holdings, LLC (d/b/a American Crafts, LC)⁽⁴⁾⁽¹⁴⁾⁽²⁵⁾	Class A Units	N/A	N/A	N/A	N/A	03/16/23	N/A	1		—		—	—
										—		—	—
Paper & Plastic Packaging Products & Materials
Max Solutions Inc.(4)	Common Stock	N/A	N/A	N/A	N/A	09/29/22	N/A	4		400		123	0.04
										400		123	0.04
Real Estate Operating Companies
Salon Republic Investments LLC (d/b/a Salon Republic, LLC)⁽⁴⁾⁽⁸⁾	Preferred Stock	N/A	N/A	N/A	8.00% PIK	12/02/22	N/A	200		200		200	0.06
Salon Republic Investments LLC (d/b/a Salon Republic, LLC)⁽⁴⁾	Common Stock	N/A	N/A	N/A	N/A	12/02/22	N/A	400		400		233	0.07
										600		433	0.13
Specialized Consumer Services
Camp Facility Services Parent, LLC (d/b/a Camp Construction Services, Inc.)⁽⁴⁾⁽⁸⁾	Preferred Units	N/A	N/A	10.00%	10.00% PIK	11/16/21	N/A	15		840		974	0.30
										840		974	0.30
Specialized Finance
WHF STRS Ohio Senior Loan Fund(4)(5)(7)(14)(18)	LLC Interests	N/A	N/A	N/A	N/A	07/19/19	N/A	20,368		20,368		20,929	6.43
										20,368		20,929	6.43
Total Equity Investments									$	45,230	$	36,681	11.27	%
Total Investments									$	760,023	$	728,352	223.86	%

See notes to the consolidated financial statements

14

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	554	CAD	$	410	USD	8/4/23	$	—	$	(9)
Total								$	—	$	(9)

(1) Except as otherwise noted, all investments are non-controlled/non-affiliate investments as defined by the Investment Company Act of 1940, as amended (the “1940 Act”), provide collateral for the Company’s credit facility, and are domiciled in the United States.

(2) The investments bear interest at a rate that may be determined by reference to the London Interbank Offered Rate (“LIBOR” or “L”), the Secured Overnight Financing Rate (“SOFR” or “SF”), the Canadian Dollar Offered Rate (“CDOR” or “C”), the Sterling Overnight Index Average (“SONIA” or “S”), or the U.S. Prime Rate (“Prime” or “P”) which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the payment-in-kind (“PIK”) interest rate, as the case may be.

(4) The investment or a portion of the investment does not provide collateral for the Company’s credit facility.

(5) Not a qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of total assets. Qualifying assets represented 83.5% of total assets as of the date of the consolidated schedule of investments.

(6) Investment is a non-controlled/affiliate investment as defined by the 1940 Act. See Note 4.

(7) The investment has an unfunded commitment in addition to any amounts presented in the consolidated schedule of investments as of June 30, 2023. See Note 8.

(8) Preferred equity investment is a non-income producing security.

(9) Security is perpetual with no defined maturity date.

(10) Except as otherwise noted, all of the Company’s portfolio company investments, which as of the date of the consolidated schedule of investments represented 223.86% of the Company’s net assets or 94.3% of the Company’s total assets, are subject to legal restrictions on sales.

(11) The fair value of each investment was determined using significant unobservable inputs. See Note 5.

(12) The investment was comprised of two contracts, which were indexed to different base rates, L or SF and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

(13) Principal amount is non-USD denominated and is based in Canadian dollars.

(14) Investment is a controlled affiliate investment as defined by the 1940 Act. See Note 4.

(15) Investment is structured as a unitranche loan in which the Company may receive additional interest on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(16) In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest in the amount of 3.50% on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(17) The investment is on non-accrual status.

(18) On January 14, 2019, the Company entered into an agreement with State Teachers Retirement System of Ohio, a public pension fund established under Ohio law (“STRS Ohio”), to create WHF STRS Ohio Senior Loan Fund, LLC (“STRS JV”), a joint venture, which invests primarily in senior secured first and second lien term loans.

(19) At the option of the issuer, interest can be paid in cash or cash and PIK. The issuer may elect to pay up to 1.50% PIK.

See notes to the consolidated financial statements

15

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments (Unaudited)

June 30, 2023

(in thousands)

(20) On January 24, 2022, as part of a restructuring agreement between the Company and PlayMonster LLC, the Company’s first lien secured term loan and delayed draw loan investments to PlayMonster LLC were converted into a new first lien secured term loan, preferred stock and common stock of Playmonster Group LLC. See Note 4.

(21) Ownership of certain equity investments may occur through a holding company or partnership.

(22) The issuer is domiciled in Guernsey.

(23) The issuer is domiciled in Canada.

(24) Investment is structured with a PIK period beginning with the first interest payment date through December 20, 2023, whereby accrued interest due on the loan is capitalized and added to the unpaid principal balance of the loan.

(25) In March 2023, as a result of a restructuring agreement between the Company and American Crafts, LC, the Company’s investments are controlled affiliate investments, as defined by the 1940 Act. See Note 4.

(26) In March 2023, as part of a restructuring agreement between the Company and Sklar Holdings, Inc (d/b/a Starco), the Company’s first lien secured term loan investment was converted into a new first lien secured term loan to Chase Products Co. (f/k/a Starco) and preferred units and common units of Pressurized Holdings, LLC (f/k/a Starco). See Note 4.

See notes to the consolidated financial statements

16

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
North America
Debt Investments
Air Freight & Logistics
Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	11.43%	12/16/22	12/18/28	4,853	$	4,708	$	4,708	1.42	%
Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	11.43%	12/16/22	12/18/28	—		—		—	—
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.59%	07/12/21	07/12/26	11,113		10,956		10,749	3.23
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)⁽⁷⁾⁽¹²⁾	First Lien Secured Revolving Loan	1.00%	Base Rate	5.56%	11.21%	07/12/21	07/12/26	158		155		133	0.04
										15,819		15,590	4.69
Alternative Carriers
Patagonia Holdco LLC (d/b/a Lumen LATAM)	First Lien Secured Term Loan	0.50%	SOFR	5.75%	9.96%	08/05/22	08/01/29	14,588		12,105		12,068	3.63
										12,105		12,068	3.63
Application Software
Atlas Purchaser, Inc. (d/b/a Aspect Software, Inc.)	First Lien Secured Term Loan	0.75%	LIBOR	5.25%	8.68%	08/29/22	05/08/28	3,097		2,611		2,556	0.76
Atlas Purchaser, Inc. (d/b/a Aspect Software, Inc.)	Second Lien Secured Term Loan	0.75%	LIBOR	9.00%	14.20%	05/03/21	05/07/29	15,000		14,642		11,969	3.59
MBS Highway, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.50%	11.92%	10/13/22	10/13/27	9,476		9,250		9,250	2.78
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	11.68%	10/06/22	12/29/23	3,180		3,177		3,084	0.93
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)⁽⁷⁾⁽¹²⁾	First Lien Secured Revolving Loan	1.00%	Base Rate	6.63%	12.19%	10/06/22	12/29/23	267		267		258	0.08
										29,947		27,117	8.14
Asset Management & Custody Banks
JZ Capital Partners Ltd.(4)(5)	First Lien Secured Term Loan	1.00%	LIBOR	7.00%	11.33%	01/26/22	01/26/27	10,286		10,118		10,135	3.05
JZ Capital Partners Ltd.(4)(5)(7)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	7.00%	11.33%	01/26/22	01/26/27	—		—		9	—
										10,118		10,144	3.05
Automotive Retail
Team Car Care Holdings, LLC (Heartland Auto)⁽¹²⁾	First Lien Secured Term Loan	1.00%	Base Rate	7.98%	11.83%	02/16/18	06/28/24	14,363		14,311		14,363	4.32
										14,311		14,363	4.32
Broadcasting
Coastal Television Broadcasting Group LLC	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.80%	12/30/21	12/30/26	8,036		7,908		7,785	2.34
Coastal Television Broadcasting Group LLC(7)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	10.80%	12/30/21	12/30/26	—		—		(5)	—
										7,908		7,780	2.34
Broadline Retail
BBQ Buyer, LLC (d/b/a BBQ Guys)	First Lien Secured Term Loan	1.50%	LIBOR	9.00%	13.38% (12.38% Cash + 1.00% PIK)	08/28/20	08/28/25	12,720		12,550		12,465	3.75
BBQ Buyer, LLC (d/b/a BBQ Guys)	First Lien Secured Delayed Draw Loan	1.50%	LIBOR	9.00%	13.38% (12.38% Cash + 1.00% PIK)	04/29/22	08/28/25	2,593		2,557		2,541	0.76
Luxury Brand Holdings, Inc. (d/b/a Ross-Simons, Inc.)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.91%	12/04/20	06/04/26	5,880		5,807		5,880	1.77
Potpourri Group, Inc.	First Lien Secured Term Loan	1.50%	LIBOR	8.25%	12.47%	07/03/19	07/03/24	14,187		14,091		14,187	4.27
										35,005		35,073	10.55
Building Products
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽¹³⁾	First Lien Secured Term Loan	1.00%	CDOR	6.00%	10.52%	12/17/21	12/17/26	8,935		6,879		6,504	1.95
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽⁷⁾⁽¹³⁾	First Lien Secured Revolving Loan	1.00%	CDOR	6.00%	10.52%	12/17/21	12/17/26	—		—		2	—
PFB Holdco, Inc. (d/b/a PFB Corporation)	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.17%	12/17/21	12/17/26	2,176		2,141		2,144	0.65
PFB Holdco, Inc. (d/b/a PFB Corporation)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.17%	12/17/21	12/17/26	—		—		—	—
Trimlite Buyer LLC (d/b/a Trimlite LLC)⁽⁵⁾⁽¹³⁾	First Lien Secured Term Loan	1.00%	CDOR	6.00%	10.88%	07/27/21	07/27/26	20,582		16,162		14,926	4.49
										25,182		23,576	7.09

See notes to the consolidated financial statements

17

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Cable & Satellite
Bulk Midco, LLC	First Lien Secured Term Loan	1.00%	LIBOR	7.50%	11.64%	10/28/22	06/10/24	19,228	$	19,126	$	18,525	5.57	%
Bulk Midco, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	7.50%	11.64% (10.64% Cash + 1.00% PIK)	10/28/22	06/10/24	2,000		1,963		1,964	0.59
										21,089		20,489	6.16
Commodity Chemicals
FGI Acquisition Corp. (d/b/a Flexitallic Group SAS)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	11.73% (11.23% Cash + 0.50% PIK)	10/28/19	10/29/26	16,350		15,794		15,859	4.77
US Methanol Midco LLC (d/b/a US Methanol LLC)⁽²⁴⁾	First Lien Secured Term Loan	1.00%	SOFR	7.75%	12.17% PIK	12/20/22	12/20/27	4,667		4,551		4,551	1.37
US Methanol Midco LLC (d/b/a US Methanol LLC)⁽⁷⁾⁽²⁴⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.75%	12.17% PIK	12/20/22	12/20/27	—		—		—	—
										20,345		20,410	6.14
Construction Materials
Claridge Products and Equipment, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	12/30/20	12/29/25	7,079		6,994		6,727	2.01
Claridge Products and Equipment, LLC(7)(12)	First Lien Secured Revolving Loan	1.00%	Base Rate	5.88%	12.28%	12/30/20	12/29/25	779		772		732	0.22
										7,766		7,459	2.23
Data Processing & Outsourced Services
Future Payment Technologies, L.P.	First Lien Secured Term Loan	1.00%	LIBOR	8.25%	12.37%	12/23/16	06/07/24	22,911		22,776		22,817	6.86
										22,776		22,817	6.86
Distributors
Foodservices Brand Group, LLC (d/b/a Crown Brands Group)	First Lien Secured Term Loan	1.00%	SOFR	8.00%	12.80%	11/22/22	12/09/25	357		357		330	0.10
Foodservices Brand Group, LLC (d/b/a Crown Brands Group)⁽¹⁹⁾	Second Lien Secured Term Loan	1.50%	SOFR	6.50%	10.92%	11/22/22	01/08/26	5,171		5,108		3,841	1.16
										5,465		4,171	1.26
Diversified Chemicals
Manchester Acquisition Sub LLC (d/b/a Draslovka Holding AS)	First Lien Secured Term Loan	0.75%	SOFR	5.75%	10.30%	11/16/21	11/16/26	7,920		7,578		6,731	2.03
Sklar Holdings, Inc. (d/b/a Starco)	First Lien Secured Term Loan	1.00%	Prime	8.75%	16.25% (14.25% Cash + 2.00% PIK)	11/13/19	05/13/23	7,353		7,302		6,537	1.97
										14,880		13,268	4.00
Diversified Support Services
NNA Services, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.75%	11.48%	08/27/21	08/27/26	11,302		11,199		10,833	3.26
										11,199		10,833	3.26
Education Services
EducationDynamics, LLC	First Lien Secured Term Loan	1.00%	LIBOR	7.00%	11.39% (10.89% Cash + 0.50% PIK)	09/15/21	09/15/26	13,053		12,861		12,663	3.80
EducationDynamics, LLC(4)(7)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	7.00%	11.39% (10.89% Cash + 0.50% PIK)	09/15/21	09/15/26	—		—		(26)	(0.01)
EducationDynamics, LLC(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	7.00%	11.39% (10.89% Cash + 0.50% PIK)	09/15/21	09/15/26	—		—		(18)	(0.01)
EducationDynamics, LLC(4)	Subordinated Unsecured Term Loan	N/A	N/A	4.00%	4.00%	09/15/21	03/15/27	167		167		167	0.05
										13,028		12,786	3.83
Electric Utilities
CleanChoice Energy, Inc. (d/b/a CleanChoice)	First Lien Secured Term Loan	1.00%	LIBOR	7.25%	11.33%	10/12/21	10/12/26	10,500		10,341		10,411	3.13
										10,341		10,411	3.13
Environmental & Facilities Services
Industrial Specialty Services USA LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.98%	12/31/21	12/31/26	11,887		11,697		11,559	3.48
Industrial Specialty Services USA LLC(7)(12)	First Lien Secured Revolving Loan	1.00%	Base Rate	5.90%	11.41%	12/31/21	12/31/26	674		663		649	0.20
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)⁽⁵⁾⁽¹⁵⁾	First Lien Secured Term Loan	0.50%	SOFR	6.75%	11.05%	09/30/22	09/28/29	2,783		2,709		2,713	0.82
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)⁽⁵⁾⁽¹³⁾⁽¹⁵⁾	First Lien Secured Term Loan	0.50%	CDOR	6.75%	11.61%	09/30/22	09/28/29	3,837		2,729		2,749	0.83
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)⁽⁵⁾⁽¹⁵⁾⁽²²⁾	First Lien Secured Term Loan	0.00%	SONIA	6.75%	10.18%	09/30/22	09/28/29	168		182		199	0.06
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)⁽⁵⁾⁽¹⁵⁾	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.05%	09/30/22	09/28/29	53		51		52	0.02
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)⁽⁵⁾⁽⁷⁾⁽¹⁵⁾⁽²³⁾	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.05%	09/30/22	09/28/29	—		—		(62)	(0.02)
										18,031		17,859	5.39

See notes to the consolidated financial statements

18

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Health Care Facilities
Bridgepoint Healthcare, LLC	First Lien Secured Term Loan	1.00%	LIBOR	7.75%	12.04%	10/05/21	10/05/26	10,423	$	10,266	$	10,161	3.06	%
Bridgepoint Healthcare, LLC(7)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	7.75%	12.04%	10/05/21	10/05/26	—		—		(14)	—
Bridgepoint Healthcare, LLC(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	7.75%	12.04%	10/05/21	10/05/26	—		—		(16)	—
										10,266		10,131	3.06
Health Care Services
Lab Logistics, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.25%	11.67%	10/16/19	09/25/23	5,487		5,446		5,487	1.65
Lab Logistics, LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.25%	11.67%	10/16/19	09/25/23	5,131		5,124		5,131	1.54
PG Dental New Jersey Parent, LLC	First Lien Secured Term Loan	1.00%	LIBOR	9.00%	13.32% (12.57% Cash + 0.75% PIK)	11/25/20	11/25/25	13,495		13,324		12,415	3.74
PG Dental New Jersey Parent, LLC(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	8.25%	12.57% (11.82% Cash + 0.75% PIK)	11/25/20	11/25/25	352		347		300	0.09
										24,241		23,333	7.02
Health Care Supplies
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)	First Lien Secured Term Loan	0.75%	LIBOR	7.50%	12.67%	02/23/22	02/23/28	21,573		21,110		20,997	6.32
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)⁽⁷⁾⁽¹²⁾	First Lien Secured Revolving Loan	0.75%	Base Rate	6.51%	13.98%	02/23/22	02/23/28	2,151		2,105		2,093	0.63
										23,215		23,090	6.95
Heavy Electrical Equipment
Power Service Group CR Acquisition Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.98%	06/25/21	06/25/26	14,130		13,922		13,774	4.14
Power Service Group CR Acquisition Inc.⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	10.98%	07/11/22	06/25/26	—		—		(34)	(0.01)
Power Service Group CR Acquisition Inc.⁽⁷⁾⁽¹²⁾	First Lien Secured Revolving Loan	1.00%	Base Rate	5.96%	11.36%	06/25/21	06/25/24	836		828		780	0.23
										14,750		14,520	4.36
Home Furnishings
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.40%	10/12/21	10/12/26	20,834		20,517		20,210	6.08
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	10.40%	10/12/21	10/12/26	—		—		(39)	(0.01)
Hollander Intermediate LLC (d/b/a Hollander Sleep Products, LLC)	First Lien Secured Term Loan	2.00%	SOFR	8.75%	13.19%	09/19/22	09/21/26	4,861		4,821		4,609	1.39
										25,338		24,780	7.46
Household Appliances
Token Buyer, Inc. (d/b/a Therm-O-Disc, Inc.)	First Lien Secured Term Loan	0.50%	SOFR	6.00%	10.73%	05/26/22	05/31/29	7,214		6,680		6,615	1.99
										6,680		6,615	1.99
Household Products
The Kyjen Company, LLC (d/b/a Outward Hound)	First Lien Secured Term Loan	1.00%	SOFR	7.00%	11.65% (11.15% Cash + 0.50% PIK)	04/05/21	04/05/26	11,334		11,223		10,429	3.14
The Kyjen Company, LLC (d/b/a Outward Hound)	First Lien Secured Revolving Loan	1.00%	SOFR	6.58%	10.90% (10.40% Cash + 0.50% PIK)	04/05/21	04/05/26	798		790		724	0.22
										12,013		11,153	3.36
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.25%	SOFR	6.50%	10.21%	10/03/22	02/01/27	2,149		2,098		2,091	0.63
Project Castle, Inc. (d/b/a Material Handling Systems, Inc.)	First Lien Secured Term Loan	0.50%	SOFR	5.50%	10.08%	06/09/22	06/01/29	8,355		7,535		7,269	2.19
										9,633		9,360	2.82
Interactive Media & Services
MSI Information Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	7.75%	12.17%	04/25/22	04/24/26	7,751		7,623		7,554	2.27
MSI Information Services, Inc.(7)	First Lien Secured Revolving Loan	1.00%	SOFR	7.75%	12.17%	04/25/22	04/24/26	—		—		(9)	—
										7,623		7,545	2.27
Investment Banking & Brokerage
JVMC Holdings Corp. (fka RJO Holdings Corp)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.88%	02/28/19	02/28/24	11,860		11,833		11,860	3.57
										11,833		11,860	3.57
IT Consulting & Other Services
ATSG, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.14%	11/12/21	11/12/26	13,833		13,620		13,487	4.06
										13,620		13,487	4.06

See notes to the consolidated financial statements

19

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Leisure Facilities
Honors Holdings, LLC (d/b/a Orange Theory)⁽¹⁵⁾⁽¹⁶⁾	First Lien Secured Term Loan	1.00%	SOFR	7.12%	11.73%	09/06/19	09/06/24	9,440	$	9,344	$	9,254	2.78	%
Honors Holdings, LLC (d/b/a Orange Theory)⁽¹⁵⁾⁽¹⁶⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.00%	11.62%	09/06/19	09/06/24	4,649		4,621		4,557	1.37
Lift Brands, Inc. (d/b/a Snap Fitness)	First Lien Secured Term Loan A	1.00%	LIBOR	7.50%	11.88%	06/29/20	06/29/25	5,574		5,531		5,520	1.66
Lift Brands, Inc. (d/b/a Snap Fitness)	First Lien Secured Term Loan B	N/A	N/A	9.50%	9.50% (0.00% Cash + 9.50% PIK)	06/29/20	06/29/25	1,330		1,316		1,266	0.38
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁹⁾	First Lien Secured Term Loan C	N/A	N/A	9.50%	9.50% (0.00% Cash + 9.50% PIK)	06/29/20	N/A	1,268		1,265		1,198	0.36
										22,077		21,795	6.55
Leisure Products
Playmonster Group LLC(6)(20)	Priority First Lien Secured Term Loan	1.00%	LIBOR	6.75%	11.47% PIK	12/09/22	06/08/26	184		176		176	0.05
Playmonster Group LLC(6)(20)	First Lien Secured Term Loan	1.00%	LIBOR	9.00%	13.36% PIK	01/24/22	06/08/26	3,662		3,662		2,977	0.90
Leviathan Intermediate Holdco, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.50%	12.54%	12/27/22	12/27/27	10,454		10,141		10,138	3.05
Leviathan Intermediate Holdco, LLC⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.50%	12.54%	12/27/22	12/27/27	78		76		75	0.02
										14,055		13,366	4.02
Life Sciences Tools & Services
LSCS Holdings, Inc. (d/b/a Eversana Life Science Services, LLC)	Second Lien Secured Term Loan	0.50%	LIBOR	8.00%	12.38%	11/23/21	12/16/29	5,000		4,935		4,824	1.45
										4,935		4,824	1.45
Office Services & Supplies
American Crafts, LC	First Lien Secured Term Loan	1.00%	LIBOR	8.50%	12.88%	05/28/21	05/28/26	9,555		9,473		8,244	2.48
American Crafts, LC	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	8.50%	12.88%	10/01/22	05/28/26	1,367		1,346		1,147	0.35
Empire Office, Inc.	First Lien Secured Term Loan	1.50%	LIBOR	6.75%	11.13%	04/12/19	04/12/24	11,806		11,728		11,687	3.52
Empire Office, Inc.(4)	First Lien Secured Delayed Draw Loan	1.50%	LIBOR	6.75%	11.13%	08/17/21	04/12/24	4,803		4,746		4,754	1.43
										27,293		25,832	7.78
Packaged Foods & Meats
Lenny & Larry's, LLC⁽¹⁵⁾⁽¹⁷⁾	First Lien Secured Term Loan	1.00%	LIBOR	8.33%	12.65% (10.94% Cash + 1.71% PIK)	05/15/18	05/15/23	11,214		11,198		10,941	3.30
										11,198		10,941	3.30
Personal Care Products
Inspired Beauty Brands, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	7.00%	11.65%	12/30/20	12/30/25	11,519		11,381		11,159	3.36
Inspired Beauty Brands, Inc.(7)	First Lien Secured Revolving Loan	1.00%	LIBOR	7.00%	10.78%	12/30/20	12/30/25	265		262		252	0.08
Sunless, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	06/30/22	08/13/25	2,086		2,051		2,071	0.62
										13,694		13,482	4.06
Real Estate Development
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)	First Lien Secured Term Loan	1.00%	SOFR	7.50%	11.82%	11/04/22	11/04/27	4,653		4,540		4,540	1.37
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.50%	12.20%	11/04/22	11/04/27	3,621		3,563		3,563	1.07
										8,103		8,103	2.44
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	10.48%	12/23/22	10/19/26	—		—		—	—
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)	First Lien Secured Term Loan	1.00%	SOFR	7.50%	11.73%	12/02/22	12/02/27	5,155		5,003		5,003	1.50
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.00%	11.42%	12/02/22	12/02/27	56		55		55	0.02
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	SOFR	7.00%	11.42%	12/02/22	12/02/27	258		251		251	0.08
										5,309		5,309	1.60
Research & Consulting Services
Aeyon LLC⁽¹⁵⁾	First Lien Secured Term Loan	1.00%	SOFR	8.88%	13.19%	02/10/22	02/10/27	8,910		8,764		8,641	2.60
ALM Media, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.91%	11/25/19	11/25/24	13,388		13,286		13,255	3.99
										22,050		21,896	6.59

See notes to the consolidated financial statements

20

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Specialized Consumer Services
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.89%	11/16/21	11/16/27	11,798	$	11,606	$	11,326	3.41	%
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)⁽⁴⁾⁽⁷⁾	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.50%	10.89%	11/16/21	11/16/27	—		—		(96)	(0.03)
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	09/30/21	09/30/26	11,521		11,348		11,521	3.47
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)⁽⁷⁾	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	09/30/21	09/30/26	—		—		10	—
True Blue Car Wash, LLC⁽¹⁵⁾	First Lien Secured Term Loan	1.00%	SOFR	6.88%	11.30%	10/17/19	10/17/24	9,903		9,822		9,942	2.99
True Blue Car Wash, LLC⁽⁷⁾⁽¹⁵⁾	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	10.92%	10/17/19	10/17/24	4,160		4,107		4,189	1.26
										36,883		36,892	11.10
Specialized Finance
WHF STRS Ohio Senior Loan Fund LLC(4)(5)(9)(14)	Subordinated Note	N/A	LIBOR	6.50%	10.67%	07/19/19	N/A	80,000		80,000		80,000	24.07
										80,000		80,000	24.07
Systems Software
Arcstor Midco, LLC (d/b/a Arcserve (USA), LLC	First Lien Secured Term Loan	1.00%	SOFR	7.50%	11.92% (8.17% Cash + 3.75% PIK)	03/16/21	03/16/27	19,623		19,353		17,847	5.37
										19,353		17,847	5.37
Technology Hardware, Storage & Peripherals
Telestream Holdings Corporation	First Lien Secured Term Loan	1.00%	SOFR	9.25%	13.67%	10/15/20	10/15/25	15,846		15,556		15,762	4.74
Telestream Holdings Corporation(7)	First Lien Secured Revolving Loan	1.00%	SOFR	9.25%	13.67%	10/15/20	10/15/25	927		910		928	0.28
Telestream Holdings Corporation(7)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	9.25%	13.67%	05/12/22	10/15/25	—		—		3	—
										16,466		16,693	5.02
Total Debt Investments									$	735,943	$	719,068	216.34	%
Equity Investments(21)
Advertising
Avision Holdings, LLC (d/b/a Avision Sales Group)⁽⁴⁾	Class A LLC Interests	N/A	N/A	N/A	N/A	12/15/21	N/A	208	$	258	$	154	0.05	%
										258		154	0.05
Air Freight & Logistics
Motivational CIV, LLC (d/b/a Motivational Fulfillment)⁽⁴⁾	Class B Units	N/A	N/A	N/A	N/A	07/12/21	N/A	1,250		1,250		517	0.16
										1,250		517	0.16
Broadline Retail
BBQ Buyer, LLC (d/b/a BBQGuys)⁽⁴⁾	Shares	N/A	N/A	N/A	N/A	08/28/20	N/A	1,100		1,100		1,404	0.42
Ross-Simons Topco, LP (d/b/a Ross-Simons, Inc.)⁽⁴⁾	Preferred Units	N/A	N/A	8.00%	8.00% PIK	12/04/20	N/A	600		514		714	0.21
										1,614		2,118	0.63
Building Products
PFB Holding Company, LLC (d/b/a PFB Corporation)⁽⁴⁾⁽¹³⁾	Class A Units	N/A	N/A	N/A	N/A	12/17/21	N/A	1		423		786	0.24
										423		786	0.24
Diversified Financial Services
SFS Global Holding Company (d/b/a Sigue Corporation)⁽⁴⁾	Warrants	N/A	N/A	N/A	N/A	06/28/18	12/28/25	—		—		—	—
Sigue Corporation(4)	Warrants	N/A	N/A	N/A	N/A	06/28/18	12/28/25	22		2,890		3,788	1.14
										2,890		3,788	1.14
Diversified Support Services
Quest Events, LLC(4)	Preferred Units	N/A	N/A	N/A	N/A	12/28/18	12/08/25	347		347		110	0.03
ImageOne Industries, LLC(4)	Common A Units	N/A	N/A	N/A	N/A	09/20/19	N/A	229		4		92	0.03
										351		202	0.06
Education Services
Eddy Acquisitions, LLC (d/b/a EducationDynamics, LLC)⁽⁴⁾	Preferred Units	N/A	N/A	12.00%	12.00%	09/15/21	N/A	167		167		83	0.02
										167		83	0.02

See notes to the consolidated financial statements

21

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(10)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(11)		Fair Value As A Percentage of Net Assets
Environmental & Facilities Services
BPII-JL Group Holdings LP (d/b/a Juniper Landscaping Holdings LLC)⁽⁴⁾	Class A Units	N/A	N/A	N/A	N/A	12/29/21	N/A	83	$	825	$	600	0.18	%
										825		600	0.18
Industrial Machinery & Supplies & Components
BL Products Parent, LP (d/b/a Bishop Lifting Products, Inc.)⁽⁴⁾	Class A Units	N/A	N/A	N/A	N/A	02/01/22	N/A	667		667		514	0.15
										667		514	0.15
Interactive Media & Services
What If Media Group, LLC(4)	Common Units	N/A	N/A	N/A	N/A	07/02/21	N/A	851		851		1,943	0.58
										851		1,943	0.58
Investment Banking & Brokerage
Arcole Holding Corporation(4)(5)(6)(18)	Shares	N/A	N/A	N/A	N/A	10/01/20	N/A	—		6,944		6,380	1.92
										6,944		6,380	1.92
IT Consulting & Other Services
CX Holdco LLC (d/b/a Cennox Inc.)⁽⁴⁾	Common Units	N/A	N/A	N/A	N/A	05/04/21	N/A	1,068		1,116		1,558	0.47
Keras Holdings, LLC (d/b/a KSM Consulting, LLC)⁽⁴⁾	Shares	N/A	N/A	N/A	N/A	12/31/20	N/A	496		496		363	0.11
										1,612		1,921	0.58
Leisure Facilities
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁴⁾	Class A Common Stock	N/A	N/A	N/A	N/A	06/29/20	N/A	2		1,941		131	0.04
Snap Fitness Holdings, Inc. (d/b/a Lift Brands, Inc.)⁽⁴⁾	Warrants	N/A	N/A	N/A	N/A	06/29/20	06/28/28	1		793		53	0.02
										2,734		184	0.06
Leisure Products
Playmonster Group Equity, Inc. (d/b/a Playmonster Group LLC)⁽⁴⁾⁽⁶⁾⁽⁸⁾⁽²⁰⁾	Preferred Stock	N/A	N/A	14.00%	14.00% PIK	01/24/22	N/A	36		3,600		—	0.01
Playmonster Group Equity, Inc. (d/b/a Playmonster Group LLC)⁽⁴⁾⁽⁶⁾⁽²⁰⁾	Common Stock	N/A	N/A	N/A	N/A	01/24/22	N/A	72		460		—	—
										4,060		—	0.01
Office Services & Supplies
American Crafts Holdings, LLC (d/b/a American Crafts, LC)⁽⁴⁾	Warrants	N/A	N/A	N/A	N/A	12/22/22	12/22/32	—		—		—	—
										—		—	—
Paper & Plastic Packaging Products & Materials
Max Solutions Inc.(4)	Common Stock	N/A	N/A	N/A	N/A	09/29/22	N/A	4		400		283	0.09
										400		283	0.09
Real Estate Operating Companies
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁴⁾⁽⁸⁾	Preferred Stock	N/A	N/A	N/A	8.00% PIK	12/02/22	N/A	200		200		200	0.06
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)⁽⁴⁾	Common Stock	N/A	N/A	N/A	N/A	12/02/22	N/A	400		400		400	0.12
										600		600	0.18
Specialized Consumer Services
Camp Facility Services Parent, LLC (d/b/a Camp Construction Services, Inc.)⁽⁴⁾⁽⁸⁾	Preferred Units	N/A	N/A	10.00%	10.00% PIK	11/16/21	N/A	15		840		927	0.29
										840		927	0.29
Specialized Finance
WHF STRS Ohio Senior Loan Fund(4)(5)(14)	LLC Interests	N/A	N/A	N/A	N/A	07/19/19	N/A	20,000		20,000		20,160	6.07
										20,000		20,160	6.07
Total Equity Investments									$	46,486	$	41,160	12.41	%
Total Investments									$	782,429	$	760,228	228.75	%

See notes to the consolidated financial statements

22

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	327	CAD	$	241	USD	1/27/23	$	—	$	—
Morgan Stanley	£	59	GBP	$	69	USD	1/27/23		—		(3)
Total								$	—	$	(3)

(1) Except as otherwise noted, all investments are non-controlled/non-affiliate investments as defined by the 1940 Act, and provide collateral for the Company’s credit facility.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, SONIA, or Prime, which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and PIK interest rate, as the case may be.

(4) The investment or a portion of the investment does not provide collateral for the Company’s credit facility.

(5) Not a qualifying asset under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of total assets. Qualifying assets represented 82.8% of total assets as of the date of the consolidated schedule of investments.

(6) Investment is a non-controlled/affiliate investment as defined by the 1940 Act.

(7) The investment has an unfunded commitment in addition to any amounts presented in the consolidated schedule of investments as of December 31, 2022. See Note 8.

(8) Preferred equity investment is a non-income producing security.

(9) Security is perpetual with no defined maturity date.

(10) Except as otherwise noted, all of the Company’s portfolio company investments, which as of the date of the consolidated schedule of investments represented 228.75% of the Company’s net assets or 95.4% of the Company’s total assets, are subject to legal restrictions on sales.

(11) The fair value of each investment was determined using significant unobservable inputs. See Note 5.

(12) The investment was comprised of two contracts, which were indexed to different base rates, L or SF and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

(13) Principal amount is non-USD denominated and is based in Canadian dollars.

(14) Investment is a controlled affiliate investment as defined by the 1940 Act. On January 14, 2019, the Company entered into an agreement (as described in Note 4 hereto) with STRS Ohio, to create STRS JV, a joint venture, which invests primarily in senior secured first and second lien term loans.

(15) Investment is structured as a unitranche loan in which the Company may receive additional interest on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(16) In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest in the amount of 3.50% on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(17) In addition to the interest earned based on the stated interest rate of this security, the Company is entitled to receive an additional interest in the amount of 3.00% on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(18) On October 1, 2020, as part of a restructuring agreement between the Company and Arcole Acquisition Corp, the Company’s investments in first lien secured term loans to Arcole Acquisition Corp were converted into common shares of Arcole Holding Corp.

(19) At the option of the issuer, interest can be paid in cash or cash and PIK. The issuer may elect to pay up to 2.00% PIK.

See notes to the consolidated financial statements

23

WhiteHorse Finance, Inc.

Consolidated Schedule of Investments

December 31, 2022

(in thousands)

(20) On January 24, 2022, as part of a restructuring agreement between the Company and PlayMonster LLC, the Company’s first lien secured term loan and delayed draw loan investments to PlayMonster LLC were converted into a new first lien secured term loan, preferred stock and common stock of Playmonster Group LLC.

(21) Ownership of certain equity investments may occur through a holding company or partnership.

(22) Principal amount is non-USD denominated and is based in British pounds.

(23) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be U.S. dollars, Canadian dollars or British pounds.

(24) Investment is structured with a PIK period beginning with the first interest payment date through December 20, 2023, whereby accrued interest due on the loan is capitalized and added to the unpaid principal balance of the loan.

See notes to the consolidated financial statements

24

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 1 - ORGANIZATION

WhiteHorse Finance, Inc. (“WhiteHorse Finance” and, together with its subsidiaries, the “Company”) is an externally managed, non-diversified, closed-end management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940, as amended (the “1940 Act”). In addition, for tax purposes, WhiteHorse Finance has elected to be treated as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). WhiteHorse Finance’s common stock trades on the Nasdaq Global Select Market under the symbol “WHF.”

The Company’s investment objective is to generate attractive risk-adjusted returns primarily by originating and investing in senior secured loans, including first lien and second lien facilities, to performing lower middle market companies across a broad range of industries that typically carry a floating interest rate based on an index rate such as LIBOR or SOFR and have a term of three to six years. While the Company focuses principally on originating senior secured loans to lower middle market companies, it may also opportunistically make investments at other levels of a company’s capital structure, including mezzanine loans or equity interests and may receive warrants to purchase common stock in connection with its debt investments.

WhiteHorse Finance’s investment activities are managed by H.I.G. WhiteHorse Advisers, LLC (“WhiteHorse Advisers” or the “Investment Adviser”). H.I.G. WhiteHorse Administration, LLC (“WhiteHorse Administration” or the “Administrator”) provides administrative services necessary for the Company to operate.

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation: The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and include the accounts of WhiteHorse Finance and its wholly owned subsidiaries, WhiteHorse Finance Credit I, LLC (“WhiteHorse Credit”), and its subsidiary WhiteHorse Finance (CA), LLC (“WhiteHorse California”), WHF PMA Holdco Blocker, LLC, WHF American Craft Blocker, LLC, WhiteHorse RCKC Holdings, LLC and WhiteHorse Finance Holdings, LLC. The Company meets the definition of an investment company under Accounting Standards Codification (“ASC”) Topic 946, Financial Services - Investment Companies, and therefore applies the accounting and reporting guidance discussed therein to its consolidated financial statements. All significant intercompany balances and transactions have been eliminated.

Additionally, the accompanying consolidated financial statements and related financial information have been prepared pursuant to the requirements for reporting on Form 10-K and Articles 6, 10 and 12 of Regulation S-X. In the opinion of management, the consolidated financial statements reflect all adjustments, consisting solely of normal recurring accruals considered necessary for the fair presentation of financial results as of and for the periods presented.

Principles of Consolidation: Under the investment company rules and regulations pursuant to ASC Topic 946, WhiteHorse Finance is precluded from consolidating any entity other than another investment company. As provided under ASC Topic 946, WhiteHorse Finance generally consolidates any investment company when it owns 100% of its partners’ or members’ capital or equity units. The Company does not consolidate its investment in STRS JV or any of its controlled affiliate investments. See further description in Note 4.

Use of Estimates: The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the financial statements. Actual results could differ from those estimates.

Fair Value of Financial Instruments: The Company determines the fair value of its financial instruments in accordance with ASC Topic 820, Fair Value Measurements and Disclosures. ASC Topic 820 defines fair value, establishes a framework used to measure fair value and requires disclosures for fair value measurements. In accordance

25

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

with ASC Topic 820, the Company has categorized its financial instruments carried at fair value, based on the priority of the valuation technique, into a three-level fair value hierarchy. Fair value is a market-based measure considered from the perspective of the market participant who holds the financial instrument. Therefore, when market assumptions are not readily available, the Company’s own assumptions are set to reflect those that management believes market participants would use in pricing the financial instrument at the measurement date.

The Company values its investments in accordance with the 1940 Act and Rule 2a-5 thereunder, which sets forth the requirements for determining fair value in good faith. Pursuant to Rule 2a-5, the board of directors has designated the Investment Adviser to determine the fair value of the Company’s investments. The board of directors oversees the Investment Adviser’s performance of its valuation responsibilities, and in support of this oversight, the Investment Adviser provides periodic reports to the Company’s board of directors related to the fair valuation process. The Investment Adviser carries out its responsibilities as valuation designee primarily through its valuation committee (the “Valuation Committee”), assisted by third-party valuation firms, administrative personnel, and other service providers, as appropriate. The Valuation Committee consists of a number of representatives from different functions of the Investment Adviser. The Investment Adviser conducts the fair valuation process on a quarterly basis, subject to the oversight of the Company’s board of directors through the audit committee, using consistently applied valuation procedures. In accordance with the Company’s valuation procedures, the Investment Adviser performs periodic testing of the appropriateness and accuracy of fair value methodologies, and has established a process for approving, monitoring, and evaluating independent pricing service providers. Effective September 8, 2022, the board of directors designated the Investment Adviser as the Company’s valuation designee.

Investments that are not publicly traded or for which market prices are not readily available will be valued based on the input of the Investment Adviser and independent third-party valuation firms engaged to review Company investments. These external reviews are used by the Company’s Investment Adviser, subject to the oversight of the board of directors, to review the Company’s internal valuation of investments during the year.

Investment Transactions: The Company records investment transactions on a trade date basis. These transactions may settle subsequent to the trade date depending on the transaction type. Certain expenses related to legal and tax consultation, due diligence, rating fees, valuation expenses and independent collateral appraisals may arise when the Company makes certain investments. These expenses are recognized in the consolidated statements of operations as they are incurred.

Foreign currency translation: The Company’s books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:

(1) cash and cash equivalents, restricted cash and cash equivalents, fair value of investments, interest receivable, and other assets and liabilities — at the spot exchange rate on the last business day of the period; and

(2) purchases and sales of investments, income and expenses — at the exchange rates prevailing on the respective dates of such transactions.

Although net assets and fair values are presented based on the applicable foreign exchange rates described above, the Company does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in fair values of investments held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. Fluctuations arising from the translation of assets other than investments and liabilities are included with the net change in unrealized appreciation (depreciation) on translation of assets and liabilities in foreign currencies on the consolidated statements of operations.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with investing in U.S. companies. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices to be more volatile than those of comparable U.S. companies or U.S. government securities.

26

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Revenue Recognition: The Company’s revenue recognition policies are as follows:

Sales: Realized gains or losses on the sales of investments are calculated by using the specific identification method.

Investment Income: Interest income, adjusted for amortization of premium and accretion of discount, is recorded on an accrual basis. The Company may also receive closing, commitment, prepayment, amendment and other fees from portfolio companies in the ordinary course of business.

Dividend income is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies.

Closing fees associated with investments in portfolio companies are deferred and recognized as interest income over the respective terms of the applicable loans. Upon the prepayment of a loan or debt security, any unamortized loan closing fees are recorded as part of interest income. Commitment fees are based upon the undrawn portion committed by the Company and are recorded as interest income on an accrual basis. Prepayment, amendment and other fees are recognized when earned, generally when such fees are receivable, and are included in fee income on the consolidated statements of operations.

The Company may invest in loans that contain a PIK interest rate provision. PIK interest is accrued at the contractual rates and added to loan principal on the reset dates to the extent such amounts are expected to be collected.

Non-accrual loans: Loans are placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected. The Company may conclude that non-accrual status is not required if the loan has sufficient collateral value and is in the process of collection. Accrued interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment. Non-accrual loans are restored to accrual status when past due principal and interest is paid and, in management’s judgment, are likely to remain current.

Cash and Cash Equivalents: Cash and cash equivalents include cash, deposits with financial institutions, and short-term liquid investments in money market funds with original maturities of three months or less.

Restricted Cash and Cash Equivalents: Restricted cash and cash equivalents include amounts that are collected and held by the trustee appointed as custodian of the assets securing the Credit Facility (as defined in Note 6). Restricted cash is held by the trustee for the payment of interest expense and principal on the outstanding borrowings or reinvestment into new assets. Restricted cash that represents interest or fee income is transferred to unrestricted cash accounts by the trustee generally once a quarter after the payment of operating expenses and amounts due under the Credit Facility.

Offering Costs: The Company may incur legal, accounting, regulatory, investment banking and other costs in relation to equity offerings. Offering costs are deferred and charged against paid-in capital in excess of par on completion of the related offering.

Deferred Financing Costs: Deferred financing costs represent fees and other direct incremental costs incurred in connection with the Company’s borrowings. These amounts are amortized and are included in interest expense in the consolidated statements of operations over the estimated life of the borrowings. Deferred financing costs are presented in the consolidated statements of assets and liabilities as a direct reduction from the carrying amount of the related debt liability.

Income Taxes: The Company elected to be treated as a RIC under Subchapter M of the Code. In order to maintain its status as a RIC, among other requirements, the Company is required to distribute dividends for U.S. federal income tax purposes to its stockholders each taxable year generally of an amount at least equal to 90% of the sum of ordinary

27

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

income and realized net short-term capital gains in excess of realized net long-term capital losses, if any, out of the assets legally available for distribution. In addition, the Company will incur a nondeductible excise tax equal to 4% of the amount by which (1) 98% of ordinary income for the calendar year (taking into account certain deferrals and elections), (2) 98.2% of capital gains in excess of capital losses, adjusted for certain ordinary losses, for the one-year period ending on October 31 of the calendar year and (3) any ordinary income and capital gain income for preceding years that were not distributed during such years and on which the Company incurred no U.S. federal income tax exceed distributions for the year. The Company accrues estimated excise tax on the amount, if any, that estimated taxable income is expected to exceed the level of stockholder distributions described above.

The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statement is the largest benefit or expense that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. Any tax positions not deemed to satisfy the more-likely-than-not threshold are reversed and recorded as tax benefit or tax expense, as appropriate, in the current year. Management has analyzed the Company’s tax positions, and the Company has concluded that the Company did not have any unrecognized tax benefits or unrecognized tax liabilities related to uncertain tax positions as of June 30, 2023 and December 31, 2022.

Penalties or interest that may be assessed related to any income taxes would be classified as general and administrative expenses on the consolidated statements of operations. The Company had no amounts accrued for interest or penalties as of June 30, 2023 or December 31, 2022. The Company does not expect the total amount of unrecognized tax benefits to significantly change in the next twelve months. The Company’s tax returns are subject to examination by federal, state and local taxing authorities. Because many types of transactions are susceptible to varying interpretations under U.S. federal and state income tax laws and regulations, the amounts reported in the accompanying consolidated financial statements may be subject to change at a later date by the respective taxing authorities. Tax returns for each of the federal tax years since 2019 remain subject to examination by the Internal Revenue Service.

As of June 30, 2023 and December 31, 2022, the cost of investments for federal income tax purposes was $762,622 and $784,812 resulting in net unrealized depreciation of $34,270 and $24,584, respectively. This is comprised of gross unrealized appreciation of $7,800 and $7,881 and gross unrealized depreciation of $42,070 and $32,465, on a tax basis, as of June 30, 2023 and December 31, 2022, respectively.

Dividends and Distributions: Dividends and distributions to common stockholders are recorded on the ex-dividend date. Quarterly distribution payments are determined by the Company’s board of directors and are paid from taxable earnings estimated by management and may include a return of capital and/or capital gains. Net realized capital gains, if any, are distributed at least annually, although the Company may decide to retain such capital gains for investment.

The Company maintains an “opt out” dividend reinvestment plan (“DRIP”) for common stockholders. As a result, if the Company declares a distribution or other dividend, stockholders’ cash distributions will be automatically reinvested in additional shares of common stock, unless they specifically “opt out” of the DRIP so as to receive cash distributions.

Earnings per Share: The Company calculates earnings per share as earnings available to stockholders divided by the weighted average number of shares outstanding during the period.

Risks and Uncertainties: In the normal course of business, the Company encounters primarily two significant types of economic risks: credit and market. Credit risk is the risk of default on the Company’s investments that result from an issuer’s, borrower’s or derivative counterparty’s inability or unwillingness to make contractually required payments. Market risk reflects changes in the value of investments due to changes in interest rates, spreads or other market factors, including the value of the collateral underlying investments held by the Company. Management believes that the carrying value of the Company’s investments are fairly stated, taking into consideration these risks along with estimated collateral values, payment histories and other market information.

28

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Reclassifications: Certain amounts in the consolidated financial statements have been reclassified. These reclassifications had no material impact on the Company’s consolidated financial position, results of operations or cash flows as previously reported.

Effective March 17, 2023, the Global Industry Classification Standards structure was updated with changes to certain industry naming conventions and the Company has adopted the new structure in the consolidated financial statements for all periods presented.

Recent Accounting Pronouncements: In June 2022, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This ASU clarifies the guidance in ASC 820 on the fair value measurement of an equity security that is subject to a contractual sale restriction. The ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. The guidance also requires specific disclosures related to equity securities that are subject to contractual sale restrictions. The guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within that fiscal year under a prospective approach, with early adoption permitted. The Company is currently evaluating the impact of the adoption of ASU 2022-03 on its consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting if certain criteria are met. The guidance is effective from March 12, 2020 through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which deferred the sunset day of this guidance to December 31, 2024. The adoption of this ASU did not have a material impact on the consolidated financial statements.

NOTE 3 - FORWARD CURRENCY CONTRACTS

The Company may enter into foreign currency forward contracts from time to time to facilitate settlement of purchases and sales of investments denominated in foreign currencies and to economically hedge the impact that an adverse change in foreign exchange rates would have on the value of the Company’s investments denominated in foreign currencies. A foreign currency forward contract is a commitment to purchase or sell a foreign currency at a future date at a negotiated forward rate. These contracts are marked-to-market by recognizing the difference between the contract forward exchange rate and the forward market exchange rate on the last day of the period presented as unrealized appreciation or depreciation. Realized gains or losses are recognized when forward contracts are settled. Risks arise as a result of the potential inability of the counterparties to meet the terms of their contracts. The Company attempts to limit counterparty risk by only dealing with well-known counterparties.

The Company utilizes forward foreign currency exchange contracts to protect itself against fluctuations in exchange rates. The Company may choose to renew contracts quarterly unless otherwise settled by the Company or the counterparty.

29

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table provides a breakdown of our forward currency contracts for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
($ in thousands)		2023		2022		2023		2022
Realized gain (loss) on forward currency contracts	$	4	$	(8)	$	(3)	$	(8)
Unrealized appreciation (depreciation) on forward currency contracts		(12)		4		(6)		—
Total net realized and unrealized gains (losses) on forward currency contracts	$	(8)	$	(4)	$	(9)	$	(8)

The value associated with unrealized gain or loss on open contracts is included in unrealized appreciation or depreciation on forward currency contracts within the consolidated statements of assets and liabilities. Open contracts as of June 30, 2023 were as follows:

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	554	CAD	$	410	USD	8/4/23	$	—	$	(9)
Total								$	—	$	(9)

The following table is a summary of the average USD notional exposure to foreign currency forward contracts for the three and six months ended June 30, 2023 and 2022:

	Three months ended June 30,				Six months ended June 30,
Average USD notional outstanding		2023		2022		2023		2022
Forward currency contracts	$	401	$	205	$	395	$	217

The foreign currency forward contracts open at the end of the period are generally indicative of the volume of activity during the period. The value associated with unrealized gain or loss on open contracts is included in unrealized appreciation or depreciation on forward currency contracts within the consolidated statements of assets and liabilities.

Offsetting of Derivative Instruments

The Company has derivative instruments that are subject to master netting agreements. These agreements include provisions to offset positions with the same counterparty in the event of default by one of the parties. The Company’s unrealized appreciation or depreciation on derivative instruments are reported as gross assets and liabilities, respectively, in the consolidated statements of assets and liabilities. The following tables present the Company’s assets and liabilities related to derivatives by counterparty, net of amounts available for offset under a master netting arrangement and net of any collateral received or pledged by the Company for such assets and liabilities as of June 30, 2023 and December 31, 2022.

	As of June 30, 2023
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9
Total	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

30

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

	As of December 31, 2022
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Morgan Stanley (GBP)		—		3		—		—		—		—		—		—		3
Total	$	—	$	3	$	—	$	—	$	—	$	—	$	—	$	—	$	3

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

NOTE 4 - INVESTMENTS

Investments consisted of the following:

	As of June 30, 2023				As of December 31, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
First lien secured loans	$	608,426	$	592,900	$	631,091	$	618,267
Second lien secured loans		24,728		17,132		24,685		20,634
Subordinated unsecured loans		167		167		167		167
Subordinated Note to STRS JV		81,472		81,472		80,000		80,000
Equity (excluding STRS JV)		24,862		15,752		26,486		21,000
Equity in STRS JV		20,368		20,929		20,000		20,160
Total	$	760,023	$	728,352	$	782,429	$	760,228

31

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table shows the portfolio composition by industry grouping at fair value:

Industry ($ in thousands)	As of June 30, 2023				As of December 31, 2022
Advertising	$	5,242	0.8	%	$	154	—	%
Air Freight & Logistics		25,555	4.1			16,107	2.4
Alternative Carriers		12,414	2.0			12,068	1.8
Application Software		35,429	5.7			27,117	4.1
Asset Management & Custody Banks		10,205	1.6			10,144	1.5
Automotive Retail		13,902	2.2			14,363	2.2
Broadcasting		7,415	1.2			7,780	1.2
Broadline Retail		36,448	5.8			37,191	5.6
Building Products		24,109	3.9			24,362	3.7
Cable & Satellite		20,612	3.3			20,489	3.1
Commodity Chemicals		20,899	3.3			20,410	3.1
Construction Materials		7,475	1.2			7,459	1.1
Data Processing & Outsourced Services		22,129	3.5			22,817	3.5
Distributors		1,734	0.3			4,171	0.6
Diversified Chemicals		9,938	1.6			13,268	2.0
Diversified Financial Services		3,397	0.5			3,788	0.7
Diversified Support Services		9,483	1.5			11,035	1.7
Education Services		12,583	2.0			12,869	1.9
Electric Utilities		15,743	2.5			10,411	1.7
Environmental & Facilities Services		12,380	2.0			18,459	2.8
Health Care Facilities		9,871	1.6			10,131	1.5
Health Care Services		23,711	3.8			23,333	3.5
Health Care Supplies		19,333	3.1			23,090	3.5
Heavy Electrical Equipment		16,449	2.6			14,520	2.2
Home Furnishings		25,634	4.1			24,780	3.8
Household Appliances		6,171	1.0			6,615	1.0
Household Products		10,506	1.7			11,153	1.7
Industrial Machinery & Supplies & Components		8,089	1.3			9,874	1.5
Interactive Media & Services		9,107	1.5			9,488	1.4
Investment Banking & Brokerage		9,325	1.5			18,240	2.8
IT Consulting & Other Services		5,880	0.9			15,408	2.3
Leisure Facilities		22,509	3.6			21,979	3.3
Leisure Products		13,749	2.2			13,366	2.0
Life Sciences Tools & Services		4,827	0.8			4,824	0.8
Office Services & Supplies		28,560	4.6			25,832	3.9
Packaged Foods & Meats		—	—			10,941	1.7
Paper & Plastic Packaging Products & Materials		123	—			283	0.1
Personal Care Products		11,182	1.8			13,482	2.0
Real Estate Development		10,140	1.5			8,103	1.2
Real Estate Operating Companies		6,350	1.0			5,909	0.9
Research & Consulting Services		21,713	3.5			21,896	3.3
Specialized Consumer Services		23,754	3.8			37,819	5.7
Specialized Finance(1)		—	—			—	—
Systems Software		15,188	2.4			17,847	2.7
Technology Hardware, Storage & Peripherals		16,688	2.7			16,693	2.5
Total(1)	$	625,951	100.0	%	$	660,068	100.0	%

(1) Excludes investments in STRS JV.

32

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

As of June 30, 2023, the portfolio companies underlying the investments are all located in the United States and its territories, except for JZ Capital Partners Ltd., which is domiciled in Guernsey and Trimlite Buyer, LLC, which is domiciled in Canada. As of June 30, 2023 and December 31, 2022, the weighted average remaining term of the Company’s debt investments, excluding non-accrual investments, were approximately 3.1 years and 3.4 years, respectively.

As of June 30, 2023 the total cost basis of non-accrual loans was $28,348 and the total fair value of non-accrual loans was $19,013. As of December 31, 2022, there were no loans on non-accrual status.

An affiliated company is generally a portfolio company in which the Company owns 5% or more of its voting securities. A controlled affiliated company is generally a portfolio company in which the Company owns more than 25% of its voting securities or has the power to exercise control over its management or policies (including through a management agreement).

33

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table presents the schedule of investments in and advances to affiliated and controlled persons (as defined by the 1940 Act) as of and for the six months ended June 30, 2023:

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,		Gross		Gross		Realized		Appreciation		June 30,
Affiliated Person(1)	Asset	income		2022		Additions(2)		Reductions(3)		Gain (Loss)		(Depreciation)		2023
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	84	$	6,380	$	—	$	(6,605)	$	(339)	$	564	$	—
Playmonster Group LLC	Priority First Lien Secured Term Loan		54		176		868		—		—		(14)		1,030
Playmonster Group LLC	First Lien Secured Term Loan		(85)		2,977		—		—		—		(581)		2,396
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		—		—		—		—		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		—		—		—		—		—
Chase Products Co. (f/k/a Starco)	First Lien Secured Term Loan		97		—		2,790		—		—		(201)		2,589
Pressurized Holdings, LLC (f/k/a Starco)	Common Units		—		—		—		—		—		—		—
Pressurized Holdings, LLC (f/k/a Starco)	Preferred Units		—		—		4,537		—		—		(4,290)		247
Total Non-controlled affiliates		$	150	$	9,533	$	8,195	$	(6,605)	$	(339)	$	(4,522)	$	6,262
Controlled affiliates
American Crafts, LC	Priority First Lien Secured Term Loan	$	225	$	—	$	4,750	$	—	$	—	$	(145)	$	4,605
American Crafts, LC	First Lien Secured Term Loan		585		—		7,491		—		—		(664)		6,827
American Crafts, LC	First Lien Secured Delayed Draw Loan		98		—		1,259		—		—		(113)		1,146
American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Warrants		—		—		—		—		—		—		—
New American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Class A Units		—		—		—		—		—		—		—
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note		4,538		80,000		1,472		—		—		—		81,472
WHF STRS Ohio Senior Loan Fund LLC*	Equity		2,945		20,160		368		—		—		401		20,929
Total Controlled affiliates		$	8,391	$	100,160	$	15,340	$	—	$	—	$	(521)	$	114,979

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware limited liability company that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of limited liability company (“LLC”) equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

34

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

(1) Refer to the consolidated schedule of investments for the principal amount, industry classification and other security detail of each portfolio company.

(2) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK, an exchange of existing investments for new investments and the transfers of an existing portfolio company into this category from a different category.

(3) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, an exchange of existing investments for new investments and the transfers of an existing portfolio company into this category from a different category.

In March 2023, as a result of a restructuring agreement between the Company and American Crafts, LC, the Company’s investments are controlled affiliate investments, as defined by the 1940 Act.

In March 2023, as part of a restructuring agreement between the Company and Sklar Holdings, Inc (d/b/a Starco), the Company’s first lien secured term loan investment to Sklar Holdings, Inc, with a total cost basis of $3,339, converted into a new first lien secured term loan to Chase Products Co. (f/k/a Starco) and preferred units and common units of Pressurized Holdings, LLC (f/k/a Starco). During the three months ended June 30, 2023, the Company received a paydown of $690 on its investment in Sklar Holdings, Inc (d/b/a Starco) first lien secured term loan, and the remaining Sklar Holdings, Inc (d/b/a Starco) first lien secured term loan investment, with a cost basis of $3,892, was converted into preferred units of Pressurized Holdings, LLC (f/k/a Starco).

35

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table presents the schedule of investments in and advances to affiliated and controlled persons (as defined by the 1940 Act) as of and for the year ended December 31, 2022:

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,						Realized		Appreciation		December 31,
Affiliated Person(1)	Asset	income		2021		Purchases		Sales		Gain (Loss)		(Depreciation)		2022
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	321	$	6,874	$	—	$	—	$	—	$	(494)	$	6,380
PlayMonster LLC	First Lien Secured Revolving Loan		13		—		1,088		(1,088)		—		—		—
Playmonster Group LLC	Priority First Lien Secured Term Loan		1		—		176		—		—		—		176
Playmonster Group LLC	First Lien Secured Term Loan		325		—		3,662		—		—		(685)		2,977
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		3,600		—		—		(3,600)		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		460		—		—		(460)		—
Total Non-controlled affiliates		$	660	$	6,874	$	8,986	$	(1,088)	$	—	$	(5,239)	$	9,533
Controlled affiliates
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note	$	6,385	$	60,000	$	20,000	$	—	$	—	$	—	$	80,000
WHF STRS Ohio Senior Loan Fund LLC*	Equity		6,977		15,607		5,000		—		—		(447)		20,160
Total Controlled affiliates		$	13,362	$	75,607	$	25,000	$	—	$	—	$	(447)	$	100,160

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware LLC that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of LLC equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

(1) Refer to the consolidated schedule of investments for the principal amount, industry classification and other security detail of each portfolio company.

For the year ended December 31, 2022, the Company recovered $1,725 on an equity investment to the RCS Creditor Trust Class B Units and was previously reported as a non-controlled affiliate realized gain in the consolidated statements of operations.

On January 2022, as part of a restructuring agreement between the Company and PlayMonster LLC, the Company’s first lien secured term loan and delayed draw loan investments to PlayMonster LLC, with a total cost basis of $7,045, converted into a new first lien secured term loan, preferred stock and common stock of Playmonster Group LLC. On June 2022, the PlayMonster LLC first lien secured revolving loan investment was fully realized. A portion of the PlayMonster LLC first lien secured revolving loan investment restructured into the existing Playmonster Group LLC first lien secured term loan, with a total cost basis of $437.

WHF STRS Ohio Senior Loan Fund LLC

On January 14, 2019, the Company entered into an LLC operating agreement with STRS Ohio to co-manage a newly formed joint venture investment company, STRS JV, a Delaware LLC. STRS Ohio and the Company committed to provide up to $125,000 of subordinated notes and equity to STRS JV, with STRS Ohio providing up to $50,000 and the Company providing up to $75,000, respectively. In July 2019, STRS JV formally launched operations. STRS JV invests primarily in lower middle market, senior secured debt facilities, to performing lower middle market companies

36

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

across a broad range of industries that typically carry a floating interest index rate such as LIBOR or SOFR and have a term of three to six years.

In February 2022, the Company increased its capital commitment to the STRS JV in the amount of an additional $25,000, which brought the Company’s total capital commitment to $100,000, comprised of $80,000 of subordinated notes and $20,000 of LLC equity interests. In connection with this increase in the Company’s capital commitment, the Company and STRS Ohio’s amended economic ownership in the STRS JV was approximately 66.67% and 33.33%, respectively.

In February 2023, the Company increased its commitment to the STRS JV in the amount of an additional $15,000, which brings the Company’s total capital commitment to the STRS JV to $115,000, comprised of $92,000 of subordinated notes and $23,000 of LLC equity interests, and STRS Ohio increased its capital commitment to the STRS JV in the amount of an additional $10,000, which brings its total capital commitment to the STRS JV to $60,000, comprised of $48,000 of subordinated notes and $12,000 of LLC equity interests. In connection with these increases in capital commitments, the Company’s and STRS Ohio’s amended economic ownership in the STRS JV is approximately 65.71% and 34.29%, respectively.

As of June 30, 2023 and December 31, 2022, STRS JV had total assets of $343,531 and $305,296, respectively. STRS JV’s portfolio consisted of debt investments in 32 portfolio companies as of June 30, 2023 and 28 portfolio companies as of December 31, 2022. As of June 30, 2023 and December 31, 2022, the largest investment by aggregate principal amount (including any unfunded commitments) in a single portfolio company in STRS JV’s portfolio was $19,399 and $20,086, respectively. The five largest investments in portfolio companies by fair value in STRS JV totaled $82,846 and $77,635 as of June 30, 2023 and December 31, 2022, respectively. STRS JV invests in portfolio companies in the same industries in which the Company may directly invest.

The Company provides capital to STRS JV in the form of LLC equity interests and through interest-bearing subordinated notes. As of June 30, 2023, the Company and STRS Ohio owned approximately 65.71% and 34.29%, respectively, of the LLC equity interests of STRS JV. As of December 31, 2022, the Company and STRS Ohio owned 66.67% and 33.33%, respectively, of the LLC equity interests of STRS JV. The Company’s investment in STRS JV consisted of equity contributions of $20,368 and advances of the subordinated notes of $81,472 as of June 30, 2023 and December 31, 2022. As of June 30, 2023, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $23,000 and $92,000, respectively, of which $2,632 and $10,528 were unfunded, respectively. As of December 31, 2022, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $20,000 and $80,000, respectively, both of which were fully funded.

The Company and STRS Ohio each appoint two members to STRS JV’s four-person board of managers. All material decisions with respect to STRS JV, including those involving its investment portfolio, require unanimous approval of a quorum of the board of managers. Quorum is defined as (i) the presence of two members of the board of managers; provided that at least one individual is present that was elected, designated or appointed by each member; (ii) the presence of three members of the board of managers; provided that the individual that was elected, designated or appointed by the member with only one individual present shall be entitled to cast two votes on each matter; or (iii) the presence of four members of the board of managers; provided that two individuals are present that were elected, designated or appointed by each member.

On July 19, 2019, STRS JV entered into a $125,000 credit and security agreement (the “STRS JV Credit Facility”) with JPMorgan Chase Bank, National Association (“JPMorgan”). On January 27, 2021, the terms of the STRS JV Credit Facility were amended to, among other things, increase the size of the STRS JV Credit Facility from $125,000 to $175,000. On April 28, 2021, the terms of the STRS JV Credit Facility were amended and restated to, among other things, enable borrowings in British pounds or euros. On July 15, 2021, the terms of the STRS JV Credit Facility were amended to, among other things, allow STRS JV to reduce the applicable margins for interest rates to 2.35%, extend the non-call period from January 19, 2022 to January 19, 2023, extend the end of the reinvestment period from July 19, 2022 to July 19, 2023 and extend the scheduled termination date from July 19, 2024 to July 19, 2025.

37

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

On March 11, 2022, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) permanently increase STRS Credit’s availability under the STRS JV Credit Facility from $175,000 to $225,000, (ii) increase the minimum funding amount from $131,250 to $168,750, and (iii) apply an annual interest rate equal to the applicable SOFR plus 2.50% to borrowings greater than $175,000 in the STRS JV Credit Facility.

On January 13, 2023, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) permanently increase STRS Credit’s availability under the STRS JV Credit Facility from $225,000 to $262,500 (the “$37.5 Million Increase”) and (ii) apply an annual interest rate equal to applicable SOFR, plus 3.00% to any borrowings under the $37.5 Million Increase in the STRS JV Credit Facility. As a result of this amendment, any borrowings above $175,000 will incur an annual interest rate of SOFR plus 2.71% in the STRS JV Credit Facility.

On May 18, 2023, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) effective June 6, 2023 apply an annual interest rate equal to applicable SOFR plus 2.72% to any USD borrowings (ii) extend the scheduled termination date from July 19, 2025 to July 19, 2026 (iii) extend the non-call period from January 19, 2023 to January 19, 2024 and (iv) extend the end of the reinvestment period from July 19, 2023 to July 19, 2024.

As of June 30, 2023, the STRS JV Credit Facility had $262,500 of commitments subject to leverage and borrowing base restrictions with an interest rate based on a floating index rate such as SOFR plus a spread of 2.72%, SONIA or CDOR plus a spread of 2.35%. The final maturity date of the STRS JV Credit Facility is July 19, 2026. As of June 30, 2023, STRS JV had $184,644 of outstanding borrowings and an interest rate outstanding of 7.6% per annum under the STRS JV Credit Facility.

As of December 31, 2022, the STRS JV Credit Facility had $225,000 of commitments subject to leverage and borrowing base restrictions with an interest rate based on a floating index rate such as LIBOR, SONIA or CDOR plus 2.35% for borrowings up to $175,000 and SOFR plus 2.50% for borrowings above $175,000. The final maturity date of the STRS JV Credit Facility is July 19, 2025. As of December 31, 2022, STRS JV had $152,277 of outstanding borrowings and an interest rate outstanding of 6.6% per annum under the STRS JV Credit Facility.

38

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Below is a listing of STRS JV’s individual investments as of June 30, 2023:

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	9,146	$	9,020	$	8,918	28.00	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	5.75%	11.14%	03/11/22	12/15/26	3,070		3,027		2,993	9.40
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	—		—		(7)	(0.02)
										12,047		11,904	37.38
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	3,559		3,513		3,522	11.06
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	—		—		2	0.01
										3,513		3,524	11.07
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	13,285		13,118		13,285	41.71
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	—		—		19	0.06
										13,118		13,304	41.77
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	18,981		18,833		18,898	59.33
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	—		—		2	0.01
										18,833		18,900	59.34
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.14%	11/09/20	11/05/25	14,198		14,064		13,990	43.92
										14,064		13,990	43.92
Construction & Engineering
Pave America, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	4,035		3,924		3,953	12.41
Pave America, LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	—		—		(4)	(0.01)
Pave America, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.11%	03/17/23	02/07/28	251		244		247	0.78
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.80%	12.01%	12/31/19	03/18/25	10,861		10,743		10,692	33.57
										14,911		14,888	46.75
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	19,688		15,145		14,719	46.21
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	—		—		(2)	(0.01)
										15,145		14,717	46.20
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	11,769		11,708		11,567	36.32
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	468		465		454	1.43
										12,173		12,021	37.75

39

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Drug Retail
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.16%	04/11/23	03/01/29	5,078	$	4,934	$	4,935	15.49	%
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.93%	04/11/23	03/01/29	194		188		189	0.59
										5,122		5,124	16.08
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	13,398		13,243		13,184	41.39
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	—		—		(4)	(0.01)
										13,243		13,180	41.38
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/01/22	12/29/26	11,249		11,111		11,024	34.62
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.48%	03/01/22	12/29/26	1,896		1,872		1,854	5.82
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.30%	03/01/22	12/29/26	179		177		168	0.53
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Term Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	2,783		2,714		2,736	8.59
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(10)(13)(14)	First Lien Secured Term Loan	0.50%	CDOR	6.75%	12.13%	03/23/23	09/28/29	3,839		2,729		2,845	8.93
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Term Loan	0.00%	SONIA	6.75%	11.68%	03/23/23	09/28/29	169		204		211	0.66
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	365		355		359	1.13
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Delayed Draw Loan	0.00%	SONIA	6.75%	11.69%	03/23/23	09/28/29	535		652		657	2.06
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(12)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	—		—		—	—
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	7,432		7,381		7,432	23.33
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	—		—		3	0.01
										27,195		27,289	85.68
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.85%	05/04/22	04/28/28	6,608		6,843		7,043	22.11
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.39%	05/04/22	04/28/28	1,006		990		991	3.11
										7,833		8,034	25.22
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.37%	SOFR	6.42%	11.61%	02/18/22	02/01/27	12,285		12,068		12,074	37.91
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.44%	02/18/22	02/01/27	574		566		565	1.77
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/25/22	03/08/27	6,594		6,521		6,594	20.70
										19,155		19,233	60.38
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,867		2,846		2,867	9.00
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,394		2,386		2,394	7.52
										5,232		5,261	16.52

40

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
IT Consulting & Other Services
ATSG, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.72%	03/27/23	11/12/26	9,937	$	9,706	$	9,744	30.60	%
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	11.68% (11.43% Cash + 0.25% PIK)	07/16/21	05/04/26	2,830		3,862		3,484	10.94
Cennox, Inc. (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.50%	12.01% (11.76% Cash + 0.25% PIK)	06/28/22	05/04/26	9,434		9,836		10,120	31.77
Cennox Holdings Limited (d/b/a Cennox)(8)(11)	First lien Secured Revolving Loan	1.00%	Base Rate	6.13%	11.20% (10.95% Cash + 0.25% PIK)	07/16/21	05/04/26	864		1,179		1,064	3.34
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Term Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	6,263		6,084		6,085	19.11
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	—		—		—	—
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/28	—		—		—	—
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.64%	01/27/21	12/31/26	11,093		10,962		10,983	34.48
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	11.53%	01/27/21	12/31/26	2,991		2,954		2,962	9.30
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)(11)	First Lien Secured Revolving Loan	1.00%	Base Rate	6.25%	11.55%	01/27/21	12/31/26	533		527		530	1.66
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	6,057		5,980		5,983	18.78
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	—		—		—	—
										51,090		50,955	159.98
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70% (10.95% Cash + 0.75% PIK)	10/21/19	06/28/25	7,108		7,060		7,002	21.98
										7,060		7,002	21.98
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.(13)	First Lien Secured Term Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	6,622		6,506		6,502	20.41
Max Solutions, Inc.(6)(13)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	—		—		(21)	(0.07)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	7.66%	13.05%	10/07/22	09/29/28	—		—		—	—
										6,506		6,481	20.34
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.09%	10/21/19	08/13/25	5,730		5,664		5,715	17.94
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.03%	10/21/19	08/13/25	310		309		311	0.98
										5,973		6,026	18.92
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	9.21%	12/16/21	11/01/27	12,225		13,597		13,054	41.00
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.27%	12/16/21	11/01/27	976		961		959	3.01
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.34%	10/01/22	11/01/27	887		873		871	2.73
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.03%	12/16/21	11/01/27	754		742		737	2.31
										16,173		15,621	49.05
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.18%	12/28/21	10/19/26	9,604		9,477		9,399	29.51
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	5.97%	11.50%	02/18/22	10/19/26	2,410		2,376		2,346	7.37
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.13%	02/18/22	10/19/26	217		214		205	0.64
										12,067		11,950	37.52

41

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	03/01/22	01/21/27	7,946	$	7,832	$	7,146	22.44	%
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.69%	03/01/22	01/21/27	508		500		438	1.38
										8,332		7,584	23.82
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	07/15/21	06/23/27	8,820		8,746		8,736	27.43
										8,746		8,736	27.43
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	15,029		14,823		14,875	46.70
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	4,108		4,052		4,067	12.77
										18,875		18,942	59.47
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	9,929		9,813		9,834	30.88
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	—		—		1	—
										9,813		9,835	30.88
Total Investments									$	326,219	$	324,501	1,018.84	%

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	339	CAD	$	251	USD	8/4/23	$	—	$	(5)
Morgan Stanley	€	893	EUR	$	989	USD	8/4/23		13		—
Morgan Stanley	£	1,158	GBP	$	1,458	USD	8/4/23		—		(14)
Total								$	13	$	(19)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility and are domiciled in the United States.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, Euro Interbank Offered Rate (“EurIBOR” or “E”) which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of STRS JV’s portfolio company investments, which as of the date of the portfolio represented 1,019% of STRS JV’s members’ equity or 94% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

42

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, LIBOR, SOFR or CDOR and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

(12) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be U.S. dollars, Canadian dollars or British pounds.

(13) Investment is structured as a unitranche loan in which the Company may receive additional interest on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(14) The issuer is domiciled in the United Kingdom.

43

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Below is a listing of STRS JV’s individual investments as of December 31, 2022:

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
North America
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	LIBOR	5.75%	10.48%	02/18/22	12/15/26	9,193	$	9,047	$	9,007	29.79	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	5.75%	10.43%	03/11/22	12/15/26	2,756		2,713		2,699	8.93
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.75%	10.43%	02/18/22	12/15/26	—		—		(3)	—
										11,760		11,703	38.71
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	3,577		3,523		3,542	11.71
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	—		—		3	0.01
										3,523		3,545	11.72
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	13,353		13,162		13,353	44.16
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	—		—		22	0.07
										13,162		13,375	44.23
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	19,105		18,920		19,105	63.18
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	—		—		8	0.03
										18,920		19,113	63.21
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.48%	11/09/20	11/05/25	14,270		14,105		14,132	46.73
										14,105		14,132	46.73
Construction & Engineering
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	12/31/19	03/18/25	8,603		8,522		8,432	27.88
										8,522		8,432	27.88
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	20,088		15,413		14,545	48.10
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	—		—		(9)	(0.03)
										15,413		14,536	48.07
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	11,805		11,728		11,298	37.36
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	468		464		431	1.43
										12,192		11,729	38.79
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	13,466		13,284		13,193	43.63
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	—		—		(6)	(0.02)
										13,284		13,187	43.61

44

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	11.15%	03/01/22	12/29/26	11,306	$	11,147	$	11,079	36.64	%
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.00%	11.14%	03/01/22	12/29/26	1,909		1,882		1,868	6.18
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.54%	03/01/22	12/29/26	298		294		287	0.95
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	7,470		7,402		7,470	24.70
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	—		—		4	0.01
										20,725		20,708	68.48
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.00%	05/04/22	04/28/28	6,642		6,865		6,899	22.81
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.04%	05/04/22	04/28/28	1,012		994		986	3.26
										7,859		7,885	26.08
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.25%	SOFR	6.25%	10.49%	02/18/22	02/01/27	8,188		8,054		7,939	26.25
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	10.67%	02/18/22	02/01/27	274		270		259	0.86
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.09%	03/25/22	03/08/27	6,907		6,821		6,801	22.49
										15,145		14,999	49.60
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	3,077		3,049		3,077	10.18
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	2,468		2,458		2,468	8.16
										5,507		5,545	18.34
IT Consulting & Other Services
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.00%	10.02%	07/16/21	05/04/26	2,837		3,863		3,343	11.06
Cennox Holdings Limited (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	10.99%	06/28/22	05/04/26	9,458		9,834		9,926	32.82
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.99%	07/16/21	05/04/26	—		—		(161)	(0.53)
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.98%	01/27/21	12/31/26	11,150		11,000		10,929	36.14
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	10.65%	01/27/21	12/31/26	3,007		2,963		2,947	9.75
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.60%	01/27/21	12/31/26	533		526		517	1.71
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	6,087		5,998		5,964	19.72
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	—		—		(4)	(0.01)
										34,184		33,461	110.66
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	7.25%	11.67% (10.17% Cash + 1.50% PIK)	10/21/19	06/28/25	7,162		7,101		7,011	23.18
Stella & Chewy's LLC	First Lien Secured Term Loan	1.00%	SOFR	8.75%	13.40% (11.40% Cash + 2.00% PIK)	12/29/20	12/16/25	3,893		3,849		3,738	12.36
Stella & Chewy's LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	8.75%	13.17% (11.17% Cash + 2.00% PIK)	03/26/21	12/16/25	1,375		1,362		1,320	4.37
										12,312		12,069	39.91

45

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	8,244	$	8,085	$	8,085	26.74	%
Max Solutions, Inc.(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		(26)	(0.09)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
Max Solutions, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
										8,085		8,059	26.65
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	10/21/19	08/13/25	3,679		3,631		3,679	12.18
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.24%	10/21/19	08/13/25	266		264		270	0.89
										3,895		3,949	13.06
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	8.17%	12/16/21	11/01/27	12,287		13,643		12,876	42.57
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	10.62%	12/16/21	11/01/27	981		966		963	3.18
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	10.81%	10/01/22	11/01/27	892		878		876	2.90
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	10.81%	12/16/21	11/01/27	—		—		(3)	(0.01)
										15,487		14,712	48.65
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.48%	12/28/21	10/19/26	9,653		9,505		9,412	31.13
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	6.10%	10.92%	02/18/22	10/19/26	1,768		1,741		1,720	5.69
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.48%	02/18/22	10/19/26	—		—		(11)	(0.04)
										11,246		11,121	36.78
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	8,924		8,778		8,301	27.45
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	290		285		247	0.82
										9,063		8,548	28.27
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	LIBOR	5.50%	10.23%	07/15/21	06/23/27	8,865		8,782		8,686	28.72
										8,782		8,686	28.72
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	15,105		14,874		14,882	49.21
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	—		—		2	0.01
										14,874		14,884	49.22
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	10,033		9,895		9,882	32.68
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	—		—		(1)	(0.00)
										9,895		9,881	32.68
Total Investments									$	287,940	$	284,259	940.05	%

46

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	256	CAD	$	189	USD	1/27/23	$	—	$	—
Morgan Stanley	€	1111	EUR	$	1,128	USD	1/27/23		—		(64)
Morgan Stanley	£	229	GBP	$	266	USD	1/27/23		—		(11)
Total								$	—	$	(75)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, EurIBOR which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of the STRS JV’s portfolio company investments, which as of the date of the portfolio represented 940% of STRS JV’s members’ equity or 93% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, L and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

As of June 30, 2023 and December 31, 2022, the portfolio companies underlying the STRS JV investments are all located in the United States and its territories except for Geo Logic Systems Ltd., which is domiciled in Canada, and Cennox Holdings Limited and Solar Holdings Bidco Limited, which are domiciled in the United Kingdom. As of June 30, 2023 and December 31, 2022, STRS JV had no investments on non-accrual status. STRS JV had outstanding commitments to fund investments totaling $22,703, and $24,549 under delayed draw term loan commitments and undrawn revolvers as of June 30, 2023 and December 31, 2022, respectively.

47

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Below is certain summarized financial information for STRS JV as of June 30, 2023 and December 31, 2022 and for the three and six months ended June 30, 2023 and 2022:

Selected Balance Sheet Information ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Assets
Investments, at fair value (amortized cost of $326,219 and $287,940, respectively)	$	324,501	$	284,259
Cash and cash equivalents		17,002		18,960
Interest receivable		1,855		1,404
Other assets		173		673
Total assets	$	343,531	$	305,296
Liabilities
Credit facility (net of unamortized debt issuance costs of $2,178 and $1,643, respectively)	$	182,466	$	150,634
Note payable to members		123,979		120,000
Interest payable on credit facility		1,060		796
Interest payable on notes to members		3,542		3,069
Unrealized depreciation on foreign currency forward contracts		6		75
Other liabilities		632		483
Total liabilities		311,685		275,057
Members’ equity		31,846		30,239
Total liabilities and members’ equity	$	343,531	$	305,296

	Three Months Ended				Six Months Ended
Selected Statement of Operations Information ($ in thousands)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Interest and fee income	$	9,757	$	7,216	$	18,452	$	13,127
Total investment income	$	9,757	$	7,216	$	18,452	$	13,127
Interest expense on credit facility		3,671		1,645		6,667		2,885
Interest expense on notes to members		3,542		2,189		6,870		3,981
Administrative fee		165		165		320		314
Other expenses		151		150		350		385
Total expenses	$	7,529	$	4,149	$	14,207	$	7,565
Net investment income		2,228		3,067		4,245		5,562
Net realized gains (losses) on investments and foreign currency transactions		28		41		87		120
Net change in unrealized appreciation (depreciation) on investments and foreign currency transactions		136		1,640		706		1,592
Net increase in members’ equity resulting from operations	$	2,392	$	4,748	$	5,038	$	7,274

48

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 5 – FAIR VALUE MEASUREMENTS

Accounting standards establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active public markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about what market participants would use in pricing an asset or liability.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, a financial instrument’s categorization within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the financial instrument.

A review of the fair value hierarchy classifications is conducted on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification for certain financial assets or liabilities. Reclassifications impacting Level 3 of the fair value hierarchy are reported as transfers in or out of the Level 3 category as of the beginning of the quarter in which the reclassifications occur. During the six months ended June 30, 2023 and year ended December 31, 2022, there were no changes in the observability of valuation inputs that would have resulted in a reclassification of assets between any levels.

Fair value for each investment is derived using a combination of valuation methodologies that, in the judgment of the Investment Committee are most relevant to such investment, including, without limitation, being based on one or more of the following: (i) market prices obtained from market makers for which the Investment Committee has deemed there to be enough breadth (number of quotes) and depth (firm bids) to be indicative of fair value, (ii) the price paid or realized in a completed transaction or binding offer received in an arm’s-length transaction, (iii) a discounted cash flow analysis, (iv) the guideline public company method, (v) the similar transaction method or (vi) the option pricing method.

49

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of June 30, 2023:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	592,900	$	592,900
Second lien secured loans		—		—		17,132		17,132
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		81,472		81,472
Equity (excluding STRS JV)		—		—		15,752		15,752
Equity in STRS JV(1)		—		—		—		20,929
Total investments	$	—	$	—	$	707,423	$	728,352

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

The Company’s forward currency contracts, which were valued at ($9) as of June 30, 2023, are characterized in Level 2 of the hierarchy.

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of December 31, 2022:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	618,267	$	618,267
Second lien secured loans		—		—		20,634		20,634
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		80,000		80,000
Equity (excluding STRS JV)		—		—		21,000		21,000
Equity in STRS JV(1)		—		—		—		20,160
Total investments	$	—	$	—	$	740,068	$	760,228

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

The Company’s forward currency contracts, which were valued at ($3) as of December 31, 2022, are characterized in Level 2 of the hierarchy.

50

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2023:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	608,477	$	19,773	$	167	$	80,000	$	20,493	$	728,910
Funding of investments		27,136		—		—		1,472		782		29,390
Non-cash interest income		1,687		—		—		—		—		1,687
Accretion of discount		947		22		—		—		—		969
Proceeds from paydowns and sales		(40,384)		—		—		—		(6,605)		(46,989)
Conversions		(3,892)		—		—		—		3,892		—
Realized gains (losses)		(5)		—		—		—		(339)		(344)
Net unrealized appreciation (depreciation)		(1,066)		(2,663)		—		—		(2,471)		(6,200)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(1,986)	$	(2,663)	$	—	$	—	$	(3,281)	$	(7,930)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	618,267	$	20,634	$	167	$	80,000	$	21,000	$	740,068
Funding of investments		64,474		—		—		1,472		783		66,729
Non-cash interest income		3,668		—		—		—		—		3,668
Accretion of discount (premium)		2,027		43		—		—		—		2,070
Proceeds from paydowns and sales		(88,196)		—		—		—		(6,605)		(94,801)
Conversions		(4,537)		—		—		—		4,537		—
Realized gains (losses)		(100)		—		—		—		(339)		(439)
Net unrealized appreciation (depreciation)		(2,703)		(3,545)		—		—		(3,624)		(9,872)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(3,638)	$	(3,545)	$	—	$	—	$	(4,188)	$	(11,371)

51

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2022:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	648,770	$	23,780	$	167	$	80,000	$	26,878	$	779,595
Funding of investments		66,851		—		—		—		10		66,861
Non-cash interest income		422		2		—		—		—		424
Accretion of discount		1,609		22		—		—		—		1,631
Proceeds from paydowns and sales		(99,505)		—		—		—		(1,741)		(101,246)
Conversions		—		—		—		—		—		—
Realized gains (losses)		145		—		—		—		1,741		1,886
Net unrealized appreciation (depreciation)		(3,433)		(1,741)		—		—		223		(4,951)
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(2,719)	$	(1,741)	$	—	$	—	$	222	$	(4,238)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	697,232	$	23,650	$	167	$	60,000	$	22,552	$	803,601
Funding of investments		169,774		—		—		20,000		677		190,451
Non-cash interest income		954		2		—		—		—		956
Accretion of discount (premium)		2,933		43		—		—		—		2,976
Proceeds from paydowns and sales		(245,386)		—		—		—		(1,851)		(247,237)
Conversions		(4,060)		—		—		—		4,060		—
Realized gains (losses)		(17,039)		(1,024)		—		—		1,765		(16,298)
Net unrealized appreciation (depreciation)		10,451		(608)		—		—		(92)		9,751
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(1,983)	$	(1,634)	$	—	$	—	$	(93)	$	(3,710)

The significant unobservable inputs used in the fair value measurement of the Company’s investments are the discount rate, market quotes and exit multiples. An increase or decrease in the discount rate in isolation would result in significantly lower or higher fair value measurement, respectively. An increase or decrease in the market quote for an investment would in isolation result in significantly higher or lower fair value measurement, respectively. An increase or decrease in the exit multiple would in isolation result in significantly higher or lower fair value measurement, respectively. As the fair value of a debt investment diverges from par, which would generally be the case for non-accrual loans, the fair value measurement of that investment is more susceptible to volatility from changes in exit multiples as a significant unobservable input.

52

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following tables summarize the significant unobservable inputs the Company used to value the majority of its investments categorized within Level 3 as of June 30, 2023 and December 31, 2022. The tables are not intended to be all-inclusive, but instead capture the significant unobservable inputs relevant to the Company’s determination of fair values. These ranges represent the significant unobservable inputs that were used in the valuation of each type of investment, but they do not represent a range of values for any one investment.

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		June 30, 2023	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	561,179	Discounted cash flow analysis	Discount rate	10.0% - 21.6% (13.3%)
		13,343	Recent transaction	Transaction price	97.0 - 97.1 (97.0)
		2,396	Enterprise value analysis	EBITDA multiple	6.9 - 6.9 (6.9)
		15,982	Expected repayment	Transaction price	100.0 - 100.0 (100.0)
Second lien secured loans		17,132	Discounted cash flow analysis	Discount rate	12.9% - 35.0% (19.6%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.1% - 4.1% (4.1%)
Subordinated Notes to STRS JV		81,472	Enterprise value analysis	n/a	n/a
Common equity		3,262	Discounted cash flow analysis	Discount rate	17.4% - 25.7% (21.7%)
		6,022	Enterprise value analysis	EBITDA multiple	6.0 - 11.2 (7.9)
		647	Recent transaction	Transaction price	1.0 - 1,000.0 (485.5)
Preferred equity		731	Discounted cash flow analysis	Discount rate	21.0% - 25.7% (21.0%)
		1,693	Enterprise value analysis	EBITDA multiple	6.0 - 10.7 (7.0)
Warrant		3,397	Discounted cash flow analysis	Discount rate	30.2% - 30.2% (30.2%)
Total Level 3 Investments	$	707,423

(1) Unobservable inputs were weighted by the relative fair value of the investments.

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		December 31, 2022	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	536,259	Discounted cash flow analysis	Discount rate	10.0% - 30.0% (13.8%)
		67,878	Recent transaction	Transaction price	83.1 - 100.0 (95.0)
		14,130	Expected repayment	Transaction price	100.0 - 101.0 (100.5)
Second lien secured loans		20,634	Discounted cash flow analysis	Discount rate	13.2% - 25.0% (18.9%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.0% - 4.0% (4.0%)
Subordinated Notes to STRS JV		80,000	Enterprise value analysis	n/a	n/a
Common equity		9,990	Discounted cash flow analysis	Discount rate	15.6% - 25.9% (22.4%)
		4,735	Enterprise value analysis	EBITDA multiple	5.0 - 11.8 (8.3)
		400	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Preferred equity		714	Discounted cash flow analysis	Discount rate	20.0% - 22.5% (20.0%)
		194	Enterprise value analysis	EBITDA multiple	8.0 - 9.5 (8.6)
		926	Enterprise value analysis	Revenue multiple	0.5 - 0.5 (0.5)
		200	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Warrant		3,841	Discounted cash flow analysis	Discount rate	25.9% - 27.2% (27.2%)
Total Level 3 Investments	$	740,068

(1) Unobservable inputs were weighted by the relative fair value of the investments.

Valuation of investments may be determined by weighting various valuation techniques. Significant judgment is required in selecting the assumptions used to determine the fair values of these investments. The valuation methods selected for a particular investment are based on the circumstances and on the sufficiency of data available to measure fair value. If more than one valuation method is used to measure fair value, the results are evaluated and weighted, as appropriate, considering the reasonableness of the range indicated by those results. A fair value measurement is the point within that range that is most representative of fair value in the circumstances.

The availability of observable inputs can vary depending on the financial instrument and is affected by a wide variety of factors, including, for example, the nature of the instrument, whether the instrument is traded on an active exchange or in the secondary market and the current market conditions. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires a greater degree of judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for financial instruments classified as Level 3.

53

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The determination of fair value using the selected methodologies takes into consideration a range of factors including the price at which the investment was acquired, the nature of the investment, local market conditions, trading values on public and private exchanges for comparable securities, current and projected operating performance and financing transactions subsequent to the acquisition of the investment, compliance with agreed upon terms and covenants, and assessment of credit ratings of an underlying borrower. These valuation methodologies involve a significant degree of judgment to be exercised.

As it relates to investments which do not have an active public market, there is no single standard for determining the estimated fair value. Valuations of privately held investments are inherently uncertain, and they may fluctuate over short periods of time and may be based on estimates. The determination of fair value may differ materially from the values that would have been used if a ready market for these investments existed.

In some cases, fair value for such investments is best expressed as a range of values derived utilizing different methodologies from which a single estimate may then be determined. Consequently, fair value for each investment may be derived using a combination of valuation methodologies that, in the judgment of the investment professionals, are most relevant to such investment. The selected valuation methodologies for a particular investment are consistently applied on each measurement date. However, a change in a valuation methodology or its application from one measurement date to another is possible if the change results in a measurement that is equally or more representative of fair value in the circumstances.

The following table presents the principal amount and fair value of the Company’s borrowings as of June 30, 2023 and December 31, 2022 . The fair value of the Credit Facility (as defined in Note 6) was estimated by discounting remaining payments using applicable market rates or market quotes for similar instruments at the measurement date, if available. As of June 30, 2023, the Credit Facility approximates its carrying value presented net of unamortized debt issuance costs and original issuance discount, net of accretion. The fair value of the Company’s 6.00% private notes due 2023 (the “6.000% 2023 Notes”), the 5.375% private notes due 2025 (the “5.375% 2025 Notes”), the 5.375% private notes due 2026 (the “5.375% 2026 Notes”), the 4.00% notes due 2026 (the “4.000% 2026 Notes”), the 5.625% private notes due 2027 (the “5.625% 2027 Notes”), and the 4.25% private notes due 2028 (the “4.250% 2028 Notes”) were estimated using discounted future cash flows to the valuation date.

		As of June 30, 2023				As of December 31, 2022
	Fair
	Value Level	Principal Amount Outstanding		Fair Value		Principal Amount Outstanding		Fair Value
JPM Credit Facility	3	$	238,649	$	236,705	$	255,145	$	252,799
6.000% 2023 Notes	3		30,000		29,931		30,000		30,382
5.375% 2025 Notes	3		40,000		37,169		40,000		37,474
5.375% 2026 Notes	3		10,000		9,133		10,000		9,149
4.000% 2026 Notes	3		75,000		68,015		75,000		67,912
5.625% 2027 Notes	3		10,000		9,034		10,000		9,063
4.250% 2028 Notes	3		25,000		21,719		25,000		21,981
		$	428,649	$	411,706	$	445,145	$	428,760

NOTE 6 – BORROWINGS

Historically, the 1940 Act has permitted the Company to issue “senior securities,” including borrowing money from banks or other financial institutions, only in amounts such that its asset coverage, as defined in the 1940 Act, equals at least 200% after such incurrence or issuance. In March 2018, the Small Business Credit Availability Act (the “SBCAA”) was enacted into law. The SBCAA, among other things, amended the 1940 Act to reduce the asset coverage requirements applicable to business development companies from 200% to 150% so long as the business development company meets certain disclosure requirements and obtains certain approvals. At the Company’s annual meeting of stockholders held on August 1, 2018, the Company’s stockholders approved the reduced asset coverage ratio from 200% to 150%, such that the Company’s maximum debt-to-equity ratio increased from a prior maximum of 1.0x (equivalent of $1 of debt outstanding for each $1 of equity) to a maximum of 2.0x (equivalent to $2 of debt outstanding for each $1 of equity). As a result, the Company’s asset coverage requirements applicable to senior securities decreased from 200% to

54

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

150%, effective August 2, 2018. As of June 30, 2023 and December 31, 2022, the Company’s asset coverage for borrowed amounts was 175.9% and 174.7%, respectively.

Total borrowings outstanding and available as of June 30, 2023, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)	11/22/2025	S+2.500	%	$	238,649	$	236,705	$	96,351
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,981		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,695		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,900		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,822		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,889		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,719		—
Total debt				$	428,649	$	424,711	$	96,351

(1) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

Total borrowings outstanding and available as of December 31, 2022, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)(2)	11/22/2025	L+2.350	%	$	255,145	$	252,799	$	79,855
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,893		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,629		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,885		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,652		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,876		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,693		—
Total debt				$	445,145	$	440,427	$	79,855

(1) The JPM Credit Facility bears interest at LIBOR plus 2.35% on outstanding USD denominated borrowings up to $285,000 and for borrowings above $285,000, a rate of SOFR plus 2.50% is applied.

(2) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

Credit Facility: On December 23, 2015, WhiteHorse Credit entered into a revolving credit and security agreement with JPMorgan, as administrative agent and lender.

On April 28, 2021, the terms of the Credit Facility were amended and restated to, among other things, enable WhiteHorse Credit to borrow in British Pounds or Euros.

On July 15, 2021, the terms of the Credit Facility were amended to, among other things, allow WhiteHorse Credit to reduce the applicable margins for interest rates to 2.35%, extend the non-call period from November 22, 2021 to November 22, 2022, extend the end of the reinvestment period from November 22, 2023 to November 22, 2024 and extend the scheduled termination date from November 22, 2024 to November 22, 2025.

On October 4, 2021, the terms of the Credit Facility were amended to, among other things, established a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335,000 for a three-month period beginning on October 4, 2021.

On January 4, 2022, the terms of the Credit Facility were amended to, among other things, continue to establish a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335,000 for a four-month period that originally began on October 4, 2021.

55

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

On February 4, 2022, the terms of the Credit Facility were further amended to, among other things (i) increase WhiteHorse Credit’s availability under the Credit Facility from $285,000 to $310,000 (the “$25,000 Increase”), (ii) increase the minimum funding amount from $200,000 to $217,000, (iii) extend an additional temporary increase of $25,000 in availability under the Credit Facility, allowing WhiteHorse Credit to borrow up to $335,000 through April 4, 2022 (the “$25,000 Temporary Increase”), and (iv) apply an annual interest rate equal to applicable SOFR plus 2.50% to any borrowings under the $25,000 Increase in the Credit Facility and the $25,000 Temporary Increase in availability under the Credit Facility.

On March 30, 2022, the terms of the Credit Facility were further amended to, among other things: (i) increase WhiteHorse Credit’s availability under the Credit Facility from $310,000 to $335,000; (ii) retain an accordion feature which allows for the expansion of the borrowing limit up to $375,000; and (iii) increase the minimum funding amount from $217,000 to $234,500.

On April 12, 2023, the terms of the Credit Facility were further amended to, among other things, (i) apply an annual interest rate equal to the applicable base rate plus 2.50% to any USD denominated borrowings, and (ii) convert to SOFR for USD denominated borrowings effective June 6, 2023.

The Credit Facility bears interest at SOFR plus 2.50% on all outstanding USD denominated borrowings. The Credit Facility bears interest at EURIBOR for EUR denominated borrowings, CDOR for CAD denominated borrowings, SONIA for GBP denominated borrowings, plus, in each case, a spread of 2.35% on outstanding borrowings. The Company is required to pay a non-usage fee which accrues at 0.75% per annum on the average daily unused amount of the financing commitments to the extent the aggregate principal amount available under the Credit Facility has not been borrowed. The minimum borrowing requirement is $234,500. In connection with the Credit Facility, WhiteHorse Credit pledged securities with a fair value of approximately $599,952 as of June 30, 2023. The Credit Facility has a maturity date of November 22, 2025.

Under the Credit Facility, the Company has made certain customary representations and warranties and is required to comply with various covenants, including leverage restrictions, reporting requirements and other customary requirements for similar credit facilities. As of June 30, 2023, the Company had $238,649 in outstanding borrowings and $96,351 undrawn under the Credit Facility. Weighted average outstanding borrowings were $236,661 and $251,195 at a weighted average interest rate of 7.52% and 7.34% for the three and six months ended June 30, 2023, respectively. As of June 30, 2023, the interest rate in effect on outstanding borrowings was 7.74%. The Company’s ability to draw down undrawn funds under the Credit Facility is determined by collateral and portfolio quality requirements stipulated in the credit and security agreement. As of June 30, 2023, $96,351 was available to be drawn by the Company based on these requirements.

As of December 31, 2022, the Company had $255,145 in outstanding borrowings and $79,855 undrawn under the Credit Facility. As of December 31, 2022, weighted average outstanding borrowings were $264,411 at a weighted average interest rate of 4.04%. As of December 31, 2022, the interest rate in effect on outstanding borrowings was 7.11%. The Company’s ability to draw down undrawn funds under the Credit Facility is determined by collateral and portfolio quality requirements stipulated in the credit and security agreement. As of December 31, 2022, $79,855 was available to be drawn by the Company based on these requirements.

6.000% 2023 Notes: On July 13, 2018, the Company entered into an agreement (the “2023 Note Purchase Agreement”) to sell in a private offering $30,000 aggregate principal amount of senior unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act of 1933, as amended. Interest on the 6.000% 2023 Notes is payable semiannually on February 7 and August 7, at a fixed, annual rate of 6.00%. This interest rate is subject to increase (up to 6.50%) in the event that, subject to certain exceptions, the 6.000% 2023 Notes cease to have an investment grade rating. The 6.000% 2023 Notes mature on August 7, 2023, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. The 6.000% 2023 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The closing of the transaction occurred on August 7, 2018. The Company used the net proceeds from this offering, together with cash on hand, to redeem existing debt.

56

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

5.375% 2025 Notes: On October 20, 2020, the Company entered into a Note Purchase Agreement (the “2025 Note Purchase Agreement”) governing the issuance of $40,000 in aggregate principal amount of unsecured notes (the “5.375% 2025 Notes”) to qualified institutional investors in a private placement. The 5.375% 2025 Notes have a fixed interest rate of 5.375% and are due on October 20, 2025, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.375% 2025 Notes is payable semiannually on April 20 and October 20, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2025 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.375% 2025 Notes at par if certain change in control events occur. The 5.375% 2025 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

5.375% 2026 Notes: On December 4, 2020, the Company entered into a Note Purchase Agreement (the “2026 Note Purchase Agreement”) governing the issuance of $10,000 in aggregate principal amount of unsecured notes (the “5.375% 2026 Notes”) to qualified institutional investors in a private placement. The 5.375% 2026 Notes have a fixed interest rate of 5.375% and are due on December 4, 2026, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.375% 2026 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2026 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.375% 2026 Notes at par if certain change in control events occur. The 5.375% 2026 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

4.000% 2026 Notes: On November 24, 2021, the Company completed a public offering of $75,000 of aggregate principal amount of unsecured notes, the net proceeds of which were used to fund investments in debt and equity securities and repay outstanding indebtedness under the Credit Facility. Interest on the 4.000% 2026 Notes is payable semiannually on June 15 and December 15, at a fixed, annual rate of 4.000%. The 4.000% 2026 Notes will mature on December 15, 2026 and may be redeemed in whole or in part at any time prior to September 15, 2026, at par plus a “make-whole” premium, and thereafter at par. The 4.000% 2026 Notes will rank equally in right of payment with the other outstanding and future unsecured, unsubordinated indebtedness, including the 6.000% 2023 Notes, the 5.375% 2025 Notes, the 5.375% 2026 Notes, the 5.625% 2027 Notes and the 4.250% 2028 Notes.

5.625% 2027 Notes: On December 4, 2020, the Company entered into a Note Purchase Agreement (the “2027 Note Purchase Agreement”) governing the issuance of $10,000 in aggregate principal amount of unsecured notes (the “5.625% 2027 Notes”) to qualified institutional investors in a private placement. The 5.625% 2027 Notes have a fixed interest rate of 5.625% and are due on December 4, 2027, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.625% 2027 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.625%. This interest rate is subject to increase (up to 6.625%) in the event that, subject to certain exceptions, the 5.625% 2027 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.625% 2027 Notes at par if certain change in control events occur. The 5.625% 2027 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

4.250% 2028 Notes: On December 6, 2021, the Company entered into a Note Purchase Agreement (the “2028 Note Purchase Agreement,”) governing the issuance of $25,000 in aggregate principal amount of unsecured notes (the “4.25% 2028 Notes”) to qualified institutional investors in a private placement. Interest on the 4.250% 2028 Notes is payable semiannually on June 6 and December 6, at a fixed, annual rate of 4.25%. This interest rate is subject to increase (up to 5.25%) in the event that, subject to certain exceptions, the 4.250% 2028 Notes cease to have an investment grade rating. The 4.250% 2028 Notes mature on December 6, 2028, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 4.250% 2028 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on December 6, 2021. The Company used the net proceeds from this offering to redeem existing debt.

57

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 7 - RELATED PARTY TRANSACTIONS

Investment Advisory Agreement: WhiteHorse Advisers serves as the Company’s investment adviser in accordance with the terms of an investment advisory agreement. On November 1, 2018, at an in-person meeting, the Company’s board of directors approved an amended and restated investment advisory agreement (the “Investment Advisory Agreement”). The Company’s board of directors most recently re-approved the Investment Advisory Agreement on February 23, 2023. Subject to the overall supervision of the Company’s board of directors, WhiteHorse Advisers manages the day-to-day operations of, and provides investment management services to, the Company. Under the terms of the Investment Advisory Agreement, WhiteHorse Advisers:

● determines the composition of the investment portfolio, the nature and timing of the changes to the portfolio and the manner of implementing such changes;

● identifies, evaluates and negotiates the structure of the investments the Company makes (including performing due diligence on the Company’s prospective portfolio companies); and

● closes, monitors and administers the investments the Company makes, including the exercise of any voting or consent rights.

In addition, WhiteHorse Advisers provides the Company with access to personnel and an Investment Committee. Under the Investment Advisory Agreement, the Company pays WhiteHorse Advisers a fee for investment management services consisting of a base management fee and an incentive fee. The Investment Advisory Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party.

Base Management Fee

The base management fee is calculated at an annual rate equal to 2.0% based on the Company’s consolidated gross assets (including cash and cash equivalents and assets purchased with borrowed funds); provided, however, the base management fee will be calculated at an annual rate equal to 1.25% of the Company’s consolidated gross assets (including cash and cash equivalents and assets purchased with borrowed funds), that exceed the product of (i) 200% and (ii) the value of the Company’s total net assets, at the end of the two most recently completed calendar quarters. Base management fees are payable quarterly in arrears and are appropriately pro-rated for any partial month or quarter.

The following table details our management fee expenses for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Management Fee ($ in thousands)		2023		2022		2023		2022
Base management fee	$	3,705	$	3,908	$	7,416	$	7,859
Total management fees	$	3,705	$	3,908	$	7,416	$	7,859

As of June 30, 2023 and December 31, 2022, management fees payable on the consolidated statements of assets and liabilities were $3,705 and $3,860, respectively.

Performance-based Incentive Fee

The performance-based incentive fee consists of two components that are independent of each other, except as provided by the Incentive Fee Cap and Deferral Mechanism discussed below.

The calculations of these two components have been structured to include a fee limitation such that no incentive fee will be paid to the investment adviser for any quarter if, after such payment, the cumulative incentive fees paid to the investment adviser for the period that includes the current fiscal quarter and the 11 full preceding fiscal quarters, referred to as the “Incentive Fee Look-back Period,” would exceed 20.0% of the Cumulative Pre-Incentive Fee Net Return (as defined below) during the Incentive Fee Look-back Period.

58

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

Each quarterly incentive fee is subject to the Incentive Fee Cap (as defined below) and a deferral mechanism through which the investment adviser may recap a portion of such deferred incentive fees, which is referred to together as the “Incentive Fee Cap and Deferral Mechanism.”

This limitation is accomplished by subjecting each incentive fee payable to a cap, which is referred to as the “Incentive Fee Cap.” The Incentive Fee Cap in any quarter is equal to (a) 20.0% of Cumulative Pre-Incentive Fee Net Return during the Incentive Fee Look-back Period less (b) cumulative incentive fees of any kind paid to the investment adviser during the Incentive Fee Look-back Period. To the extent the Incentive Fee Cap is zero or a negative value in any quarter, the Company will pay no incentive fee to its investment adviser in that quarter. The Company will only pay incentive fees to the extent allowed by the Incentive Fee Cap and Deferral Mechanism. To the extent that the payment of incentive fees is limited by the Incentive Fee Cap and Deferral Mechanism, the payment of such fees may be deferred and paid in subsequent quarters up to three years after their date of deferment, subject to applicable limitations included in the Investment Advisory Agreement. The deferral component of the Incentive Fee Cap and Deferral Mechanism may cause incentive fees that accrued during one fiscal quarter to be paid to the investment adviser at any time during the 11 full fiscal quarters following such initial full fiscal quarter.

The “Cumulative Pre-Incentive Fee Net Return” refers to the sum of (a) Pre-Incentive Fee Net Investment Income (as defined below) for each period during the Incentive Fee Look-back Period and (b) the sum of cumulative realized capital gains, cumulative realized capital losses, cumulative unrealized capital depreciation and cumulative unrealized capital appreciation during the applicable Incentive Fee Look-back Period.

The first component, which is income-based (the “Income Incentive Fee”), is calculated and payable quarterly in arrears and is determined based on Pre-Incentive Fee Net Investment Income for the immediately preceding calendar quarter, subject to the Incentive Fee Cap and Deferral Mechanism. For this purpose, “Pre-Incentive Fee Net Investment Income” means, in each case on a consolidated basis, interest income, distribution income and any other income (including any other fees (other than fees for providing managerial assistance), such as commitment, origination, structuring, diligence and consulting fees or other fees received from portfolio companies) accrued during the calendar quarter, minus the Company’s operating expenses for the quarter (including the base management fee, expenses payable under the administration agreement (the “Administration Agreement”), any interest expense and any dividends paid on any issued and outstanding preferred stock, but excluding the incentive fee). Pre-Incentive Fee Net Investment Income does not include any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation.

The operation of the first component of the incentive fee for each quarter is as follows:

● no incentive fee is payable to the Company’s investment adviser in any calendar quarter in which Pre-Incentive Fee Net Investment Income does not exceed the “Hurdle Rate” of 1.75% (7.00% annualized);

● 100% of Pre-Incentive Fee Net Investment Income with respect to that portion of such Pre-Incentive Fee Net Investment Income, if any, that exceeds the Hurdle Rate but is less than 2.1875% in any calendar quarter (8.75% annualized) is payable to the Company’s investment adviser. This portion of the Company’s Pre-Incentive Fee Net Investment Income (which exceeds the Hurdle Rate but is less than 2.1875%) is referred to as the “catch-up.” The effect of the catch-up is that, if such Pre-Incentive Fee Net Investment Income exceeds 2.1875% in any calendar quarter, the investment adviser will receive 20% of such Pre-Incentive Fee Net Investment Income as if the Hurdle Rate did not apply; and

● 20% of the amount of such Pre-Incentive Fee Net Investment Income, if any, that exceeds 2.1875% in any calendar quarter (8.75% annualized) is payable to the Company’s investment adviser (once the Hurdle Rate is reached and the catch-up is achieved, 20% of all Pre-Incentive Fee Net Investment Income).

The portion of such incentive fee that is attributable to deferred interest (such as PIK interest or original issue discount) will be paid to the investment adviser, together with interest from the date of deferral to the date of payment, only if and to the extent that the Company actually receives such interest in cash, and any accrual will be reversed if and to the extent such interest is reversed in connection with any write-off or similar treatment of the investment giving rise to any deferred interest accrual. Any reversal of such amounts would reduce net income for the quarter by the net

59

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

amount of the reversal (after taking into account the reversal of incentive fees payable) and would result in a reduction and possibly elimination of the incentive fees for such quarter.

There is no accumulation of amounts on the Hurdle Rate from quarter to quarter and, accordingly, there is no clawback of amounts previously paid if subsequent quarters are below the quarterly Hurdle Rate and there is no delay of payment if prior quarters are below the quarterly Hurdle Rate. Since the Hurdle Rate is fixed, as interest rates rise, it will be easier for the investment adviser to surpass the Hurdle Rate and receive an incentive fee based on Pre-Incentive Fee Net Investment Income.

Net investment income used to calculate this component of the incentive fee is also included in the amount of consolidated gross assets used to calculate the base management fee. These calculations will be appropriately prorated for any period of less than three months and adjusted for any share issuances or repurchases during the current quarter.

The second component, the capital gains component of the incentive fee (the “Capital Gains Incentive Fee”), which is determined and payable in arrears as of the end of each calendar year (or upon termination of the Investment Advisory Agreement, as of the termination date), commenced on January 1, 2013, and equals 20% of cumulative aggregate realized capital gains from January 1 through the end of each calendar year, computed net of aggregate cumulative realized capital losses and aggregate cumulative unrealized capital depreciation through the end of each year (the “Capital Gains Incentive Fee Base”), less the aggregate amount of any previously paid capital gains incentive fees and subject to the Incentive Fee Cap and Deferral Mechanism. If such amount is negative, then no capital gains incentive fee will be payable for the year. Additionally, if the Investment Advisory Agreement is terminated as of a date that is not a calendar year end, the termination date will be treated as though it were a calendar year end for purposes of calculating and paying the capital gains incentive fee. The capital gains component of the incentive fee is not subject to any minimum return to stockholders.

In accordance with GAAP, the Company is also required to include the aggregate unrealized capital appreciation on investments in the calculation and accrue a capital gains incentive fee on a quarterly basis if such unrealized capital appreciation were realized, even though such unrealized capital appreciation is not permitted to be considered in calculating the fee actually payable under the Investment Advisory Agreement. If the Capital Gains Incentive Fee Base, adjusted as required by GAAP to include unrealized capital appreciation, is positive at the end of a reporting period, then GAAP requires the Company to accrue a Capital Gains Incentive Fee equal to 20% of such amount, less the aggregate amount of any Capital Gains Incentive Fees previously paid and Capital Gains Incentive Fees accrued under GAAP in all prior periods. If such amount is negative, then there is no accrual for such period. The resulting accrual under GAAP in a given period may result in either additional expense (if such cumulative amount is greater than in the prior period) or a reversal of previously recorded expense (if such cumulative amount is less than in the prior period). There can be no assurance that such unrealized capital appreciation will be realized in the future.

Because of the structure of the incentive fee, it is possible that the Company may pay an incentive fee in a quarter where it incurs a loss subject to the Incentive Fee Cap and Deferral Mechanism. For example, if the Company receives Pre-Incentive Fee Net Investment Income in excess of the Hurdle Rate, it will pay the applicable Income Incentive Fee even after incurring a loss in that quarter due to realized and unrealized capital losses.

The following table provides a breakdown of the performance-based incentive fees for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Performance-based Incentive Fee ($ in thousands)		2023		2022		2023		2022
Income incentive fee	$	2,648	$	1,943	$	5,324	$	3,935
Capital gains incentive fee		—		(106)		—		(671)
Total performance-based incentive fees	$	2,648	$	1,837	$	5,324	$	3,264

60

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

As of June 30, 2023 and December 31, 2022, incentive fees payable on the consolidated statements of assets and liabilities were $5,115 and $5,618, respectively. As of June 30, 2023 and December 31, 2022, they were zero incentive fees payable on the consolidated statements of assets and liabilities for cumulative accruals of Capital Gains Incentive Fees under GAAP, including any amounts payable pursuant to the Investment Advisory Agreement as described above.

Administration Agreement: Pursuant to the Administration Agreement, WhiteHorse Administration furnishes the Company with office facilities, equipment and clerical, bookkeeping and record keeping services to enable the Company to operate. Under the Administration Agreement, WhiteHorse Administration performs, or oversees the performance of, the Company’s required administrative services, which include being responsible for the financial records which the Company is required to maintain and preparing reports to its stockholders and reports filed with the U.S. Securities and Exchange Commission. In addition, WhiteHorse Administration assists the Company in determining and publishing its net asset value, oversees the preparation and filing of its tax returns and the printing and dissemination of reports to its stockholders and generally oversees the payment of the Company’s expenses and the performance of administrative and professional services rendered to the Company by others. Payments under the Administration Agreement equal an amount based upon the Company’s allocable portion of WhiteHorse Administration’s overhead in performing its obligations under the Administration Agreement, including rent and the Company’s allocable portion of the cost of its chief financial officer and chief compliance officer along with their respective staffs. Under the Administration Agreement, WhiteHorse Administration also provides on the Company’s behalf managerial assistance to those portfolio companies to which the Company is required to provide such assistance. The Administration Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party. To the extent that WhiteHorse Administration outsources any of its functions, the Company will pay the fees associated with such functions on a direct basis without any profit to WhiteHorse Administration.

Substantially all the Company’s payments of operating expenses to third parties were made by a related party, for which such third party received reimbursement from the Company.

During the three and six months ended June 30, 2023, the Company incurred $170 and $341 of allocated administrative service fees, respectively. During the three and six months ended June 30, 2022, the Company incurred $170 and $341 of allocated administrative service fees, respectively.

Co-investments with Related Parties: As of June 30, 2023 and December 31, 2022, no officers or employees affiliated with or employed by WhiteHorse Advisers and its related entities maintained any co-investments in the Company’s or STRS JV’s investments.

As of June 30, 2023 and December 31, 2022, certain funds affiliated with WhiteHorse Advisers and its related entities maintained co-investments in the Company’s or STRS JV’s investments of $4,608,177 and $4,415,678, respectively.

STRS JV: For the three and six months ended June 30, 2023, the Company sold $12,555 and $38,473 of investments to STRS JV and recognized $2 and $98 of net realized losses, respectively. For the three and six months ended June 30, 2022, the Company sold $17,754 and $100,415 of investments to STRS JV and recognized $68 and $65 of net realized gains, respectively.

61

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 8 - COMMITMENTS AND CONTINGENCIES

Commitments: In the normal course of business, the Company is party to financial instruments with off-balance-sheet risk to meet the financing needs of its borrowers. These financial instruments include commitments to extend credit and involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated statement of assets and liabilities. The Company attempts to limit its credit risk by conducting extensive due diligence and obtaining collateral where appropriate.

The balance of unfunded commitments to extend credit was $38,847 and $56,190 as of June 30, 2023 and December 31, 2022, respectively. Commitments to extend credit consist principally of the unused portions of commitments that obligate the Company to extend credit, such as revolving credit arrangements or similar transactions. These commitments are often subject to financial or non-financial milestones and other conditions to borrow that must be achieved before the commitment can be drawn. In addition, the commitments generally have fixed expiration dates or other termination clauses. Since commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

62

WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

The following table summarizes the Company’s unfunded commitments as of June 30, 2023 and December 31, 2022:

Unfunded Commitments(1) ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Revolving Loan Commitments:
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)	$	—	$	113
Bridgepoint Healthcare, LLC		1,588		1,588
Claridge Products and Equipment, LLC		351		204
Coastal Television Broadcasting Group LLC		309		309
EducationDynamics, LLC		1,199		1,199
Gulf Winds International Acquisition LLC (d/b/a Gulf Winds International, Inc.)		647		647
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)		700		700
Industrial Specialty Services USA LLC		—		508
Inspired Beauty Brands, Inc.		442		265
Leviathan Intermediate Holdco, LLC		494		494
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)		—		1,024
MSI Information Services, Inc.		675		1,050
M&M OpCo. LLC (d/b/a Escalent, Inc.)		238		—
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)		34		—
PFB Holdco, Inc. (d/b/a PFB Corporation)(1)		919		899
PFB Holdco, Inc. (d/b/a PFB Corporation)		296		296
PG Dental New Jersey Parent, LLC		—		352
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		2,089		2,299
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		387		603
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)		1,814		2,646
Telestream Holdings Corporation		397		397
The Kyjen Company, LLC (d/b/a Outward Hound)		798		—
Total unfunded revolving loan commitments		13,377		15,593
Delayed Draw Loan Commitments:
Bridgepoint Healthcare, LLC		794		794
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)		—		4,063
EducationDynamics, LLC		1,709		1,709
HRG Management, LLC (d/b/a HomeRiver Group, LLC)		—		2,167
JZ Capital Partners Ltd.		5,714		5,714
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		—		2,090
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		1,683		2,097
Solar Holdings Bidco Limited(1)(2)		—		4,008
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)		6,237		8,217
Telestream Holdings Corporation		—		346
True Blue Car Wash, LLC		—		59
US Methanol Midco LLC (d/b/a US Methanol LLC)		9,333		9,333
Total unfunded delayed draw loan commitments		25,470		40,597
Total Unfunded Commitments	$	38,847	$	56,190

(1) Unfunded commitments denominated in non-USD currencies have been converted to USD using the exchange rate as of the applicable reporting date.

(2) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be US dollars, Canadian dollars or British pounds.

As of June 30, 2023, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $23,000 and $92,000, respectively, of which $2,632 and $10,528 were unfunded, respectively. As of December 31, 2022, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $20,000 and $80,000, respectively, both of which were fully funded. The capital commitments cannot be drawn without an affirmative vote by both the Company’s and STRS Ohio’s representatives on STRS JV’s board of managers.

Indemnification: In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties that provide general indemnifications. The Company’s maximum exposure

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WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

under these arrangements is unknown, as this would involve future claims that may be made against the Company that have not occurred. The Company expects the risk of any future obligation under these indemnifications to be remote.

Legal Proceedings: In the normal course of business, the Company, WhiteHorse Advisers and WhiteHorse Administrator may be subject to legal and regulatory proceedings that are generally incidental to its ongoing operations. While there can be no assurance of the ultimate disposition of any such proceedings, the Company does not believe any such disposition will have a material adverse effect on the Company’s consolidated financial statements.

NOTE 9 - STOCKHOLDERS’ EQUITY

On March 31, 2023, the Company launched an “at-the-market” offering (the “ATM Program”) by entering into an Equity Distribution Agreement with B. Riley Securities, Inc. pursuant to which the Company may offer and sell, from time to time, through B. Riley Securities, Inc., as the sales agent, shares of its common stock having an aggregate offering amount of up to $35,000.

On March 15, 2021, the Company previously launched an ATM Program by entering into an Equity Distribution Agreement with Raymond James & Associates, Inc. pursuant to which the Company would offer and sell, from time to time, through Raymond James & Associates, Inc., as the sales agent, shares of its common stock having an aggregate offering amount of up to $35,000. Through the Equity Distribution Agreeement with Raymond James & Associates, Inc., the Company sold 276,300 shares of its common stock at a weighted-average price of $15.77 per share, which amounted to $4,359 in gross proceeds. The Company received net proceeds of $4,272 after deducting commissions to the sales agent, but before offering expenses. As of March 31, 2023, the Company’s Equity Distribution Agreement with Raymond James & Associates, Inc. is no longer effective.

The following table summarizes the total shares issued and proceeds received, net of offering costs, relating to the issuance of shares of the Company’s common stock from the DRIP and pursuant to the ATM Program for the three and six months ended June 30, 2023 and 2022

	Three months ended June 30,				Six months ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Shares Issued from ATM Program		—		—		—		16,678
Shares Issued from DRIP		—		31,675		—		63,743
Total Shares Issued		—		31,675		—		80,421
Proceeds, before offering expenses	$	—	$	480	$	—	$	1,225
Average Price Per Share(1)	$	—	$	15.15	$	—	$	15.23

(1) No shares were issued during the three and six months ended June 30, 2023. The average price per share for the three and six months ended June 30, 2022, inclusive of offering expenses, was $15.15 and $13.72 per share, respectively.

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WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 10 - FINANCIAL HIGHLIGHTS

The following is a schedule of financial highlights:

	Six months ended June 30,
	2023			2022
Per share data:(1)
Net asset value, beginning of period	$	14.30		$	15.10
Net investment income		0.92			0.71
Net realized and unrealized gains (losses) on investments and foreign currency transactions		(0.43)			(0.15)
Net increase in net assets resulting from operations		0.49			0.56
Distributions declared from net investment income		(0.79)			(0.71)
Net asset value, end of period	$	14.00		$	14.95
Total annualized return based on market value(2)		(3.40)	%		(30.70)	%
Total annualized return based on net asset value		6.89	%		7.48	%
Net assets, end of period	$	325,296		$	347,425
Per share market value at end of period	$	12.83		$	13.14
Shares outstanding end of period		23,243,088			23,243,088
Ratios/Supplemental Data:(3)
Ratio of expenses before incentive fees to average net assets(4)		15.22	%		11.67	%
Ratio of incentive fees to average net assets		3.22	%		1.87	%
Ratio of total expenses to average net assets(4)		18.44	%		13.54	%
Ratio of net investment income to average net assets(4)		12.89	%		9.41	%
Portfolio turnover ratio		8.75	%		21.43	%

(1) Based on actual number of shares outstanding at the end of the period or the weighted average shares outstanding for the period, unless otherwise noted, as appropriate.

(2) Total return is based on the change in market price per share during the period and takes into account distributions, if any, reinvested in accordance with the DRIP.

(3) With the exception of the portfolio turnover rate, ratios are reported on an annualized basis.

(4) Calculated using total expenses, including income tax provision.

Financial highlights are calculated for each securities class taken as a whole. An individual stockholder’s return and ratios may vary based on the timing of capital transactions.

NOTE 11 - CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

The following information sets forth the computation of the basic and diluted per share net increase in net assets resulting from operations:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Net increase in net assets resulting from operations	$	3,881	$	7,349	$	11,387	$	13,056
Weighted average shares outstanding		23,243,088		23,240,651		23,243,088		23,215,792
Basic and diluted per share net increase in net assets resulting from operations	$	0.17	$	0.32	$	0.49	$	0.56

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WhiteHorse Finance, Inc.

Notes to Consolidated Financial Statements (Unaudited)

June 30, 2023

(in thousands, except share and per share data)

NOTE 12 - SUBSEQUENT EVENTS

The Company’s management has evaluated events that have occurred after the balance sheet date but before the consolidated financial statements are issued and, other than the items discussed below, has determined that there were no additional subsequent events requiring adjustment or disclosure in the consolidated financial statements.

On August 7, 2023, the 6.000% 2023 Notes, with a principal amount outstanding of $30,000, were fully repaid. Proceeds for the repayment were from existing cash balances and borrowings under the JPM Credit Facility.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The information contained in this section should be read in conjunction with our Consolidated Financial Statements appearing elsewhere in this quarterly report on Form 10-Q. In this quarterly report on Form 10-Q, the “Company”, “we”, “us”, “our” and “WhiteHorse Finance” refer to WhiteHorse Finance, Inc. and its consolidated subsidiaries.

Forward-Looking Statements

Some of the statements in this quarterly report on Form 10-Q constitute forward-looking statements, which relate to future events or our future performance or financial condition. The forward-looking statements contained in this quarterly report on Form 10-Q involve risks and uncertainties, including statements as to:

● our future operating results;

● our ability to consummate new investments and the impact of such investments;

● the ability of our portfolio companies to achieve their objectives;

● our contractual arrangements and relationships with third parties;

● changes in political, economic or industry conditions, the interest rate environment or conditions affecting the financial and capital markets, which could result in changes to the value of our assets, including changes from the impact of the ongoing war between Russia and Ukraine and ongoing health crises (such as the COVID-19 pandemic);

● the elevating levels of inflation, and the potential impact of inflation on our portfolio companies and on the industries in which we invest;

● the dependence of our future success on the general economy and its impact on the industries in which we invest;

● the impact of increased competition;

● the ability of our investment adviser to locate suitable investments for us and to monitor our investments;

● our expected financings and investments and the rate at which our investments are refunded by portfolio companies;

● our ability to pay dividends or make distributions;

● the adequacy of our cash resources and working capital;

● the timing of cash flows, if any, from the operations of our prospective portfolio companies; and

● the impact of future acquisitions and divestitures.

We use words such as “may,” “might,” “will,” “intends,” “should,” “could,” “can,” “would,” “expects,” “believes,” “estimates,” “anticipates,” “predicts,” “potential,” “plan” and similar expressions to identify forward-looking statements. Our actual results could differ materially from those projected in the forward-looking statements for any reason, including the factors set forth in “Item 1A-Risk Factors” in our annual report on Form 10-K and elsewhere in this quarterly report on Form 10-Q.

We have based the forward-looking statements included in this quarterly report on Form 10-Q on information available to us on the date of this quarterly report on Form 10-Q, and we assume no obligation to update any such forward-looking statements. Although we undertake no obligation to revise or update any forward-looking statements, whether as a result of new information, future events or otherwise, you are advised to consult any additional disclosures that we may make directly to you or through reports that we may file with the U.S. Securities and Exchange

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Commission, or the SEC, in the future, including annual reports on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K.

You should understand that under Sections 27A(b)(2)(B) and (D) of the Securities Act of 1933, as amended, or the Securities Act, and Sections 21E(b) (2)(B) and (D) of the Securities Exchange Act of 1934, as amended, or the Exchange Act, the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, as amended, do not apply to statements made in connection with this quarterly report on Form 10-Q or any periodic reports we file under the Exchange Act.

Overview

We are an externally managed, non-diversified, closed-end management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940, as amended, or the 1940 Act. In addition, for tax purposes, we have elected to be treated as a regulated investment company, or RIC, under Subchapter M of the Internal Revenue Code of 1986, as amended, or the Code.

We were formed on December 28, 2011 and commenced operations on January 1, 2012. We were originally capitalized with approximately $176.3 million of contributed assets from H.I.G. Bayside Debt & LBO Fund II, L.P. and H.I.G. Bayside Loan Opportunity Fund II, L.P., each of which is an affiliate of H.I.G. Capital, L.L.C., or H.I.G. Capital. These assets were contributed as of January 1, 2012 in exchange for 11,752,383 units in WhiteHorse Finance, LLC. On December 4, 2012, we converted from a Delaware LLC into a Delaware corporation and elected to be treated as a business development company under the 1940 Act.

On December 4, 2012, we priced our initial public offering, or the IPO, selling 6,666,667 shares. Concurrent with the IPO, certain of our directors and officers, the managers of H.I.G. WhiteHorse Advisers, LLC (“WhiteHorse Advisers” or the “Investment Adviser”) and their immediate family members or entities owned by, or family trusts for the benefit of, such persons, purchased an additional 472,673 shares through a private placement exempt from registration under the Securities Act. Our shares of common stock are listed on the Nasdaq Global Select Market under the symbol “WHF.”

We are a direct lender targeting debt investments in privately held, lower middle market companies located in the United States. We define the lower middle market as those companies with enterprise values between $50 million and $350 million. Our investment objective is to generate attractive risk-adjusted returns primarily by originating and investing in senior secured loans, including first lien and second lien facilities, to performing lower middle market companies across a broad range of industries. Such loans typically carry a floating interest index rate such as the London Interbank Offered Rate, or LIBOR, or the Secured Overnight Financing Rate, or SOFR, plus a spread and typically have a term of three to six years. While we focus principally on originating senior secured loans to lower middle market companies, we may also opportunistically make investments at other levels of a company’s capital structure, including mezzanine loans or equity interests, and in companies outside of the lower middle market, to the extent we believe the investment presents an opportunity to achieve an attractive risk-adjusted return. We also may receive warrants to purchase common stock in connection with our debt investments. We expect to generate current income through the receipt of interest payments, as well as origination and other fees, capital appreciation and dividends.

Our investment activities are managed by WhiteHorse Advisers and are supervised by our board of directors, a majority of whom are independent of us, WhiteHorse Advisers and its affiliates. Under the Investment Advisory Agreement, we have agreed to pay WhiteHorse Advisers an annual base management fee based on our average consolidated gross assets as well as an incentive fee based on our investment performance. Under our Administration Agreement, we have agreed to reimburse WhiteHorse Administration for our allocable portion (subject to the review and approval of our independent directors) of overhead and other expenses incurred by WhiteHorse Administration in performing its obligations under the Administration Agreement.

Reference Rate Reform

In July 2017, the head of the United Kingdom Financial Conduct Authority, or the FCA, announced that it will phase out the use of LIBOR by 2021. On March 2021, the FCA and the IBA announced that (i) 1-week and 2-month U.S. dollar LIBOR and non-U.S. LIBOR will cease at the end of 2021 and (ii) the remaining U.S. dollar

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LIBOR tenors will cease after June 30, 2023, effectively extending the LIBOR transition period to June 30, 2023. In light of feedback received, the FCA has proposed that the 1-, 3- and 6-month U.S. dollar LIBOR tenors continue to be published on a synthetic basis through September 2024. There is currently no definitive information regarding the future utilization of LIBOR or of any particular replacement rate.

To identify a successor rate for U.S. dollar LIBOR, the Federal Reserve System, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified SOFR as its preferred alternative rate for LIBOR. SOFR is a measure of the cost of borrowing cash overnight, collateralized by U.S. Treasury securities, and is based on directly observable U.S. Treasury-backed repurchase transactions. As of June 30, 2023, LIBOR is utilized as the floating benchmark rate on approximately five of our debt investments to portfolio companies. As of June 30, 2023, SOFR is utilized as the floating benchmark rate on the Credit Facility for USD denominated borrowings. We expect any new credit facilities that we enter into subsequent to June 30, 2023 will reference a benchmark interest rate other than LIBOR, such as SOFR.

Other jurisdictions have also proposed their own alternative to LIBOR, including the Sterling Overnight Index Average for Sterling markets, the Euro Short Term Rate for Euros and Tokyo Overnight Average Rate for Japanese Yen. Although SOFR appears to be the preferred replacement rate for U.S. dollar LIBOR, at this time, it is not possible to predict whether any of these alternative reference rates will attain market traction as a LIBOR replacement tool or the effect of any such changes as the establishment of alternative reference rates or other reforms to LIBOR may be enacted in the United States, United Kingdom or elsewhere.

Revenues

We generate revenue in the form of interest payable on the debt securities that we hold and capital gains and distributions, if any, on the portfolio company investments that we originate or acquire. Our debt investments, whether in the form of senior secured loans or mezzanine loans, typically have terms of three to six years and bear interest at a fixed or floating rate based on a spread over LIBOR, SOFR or an equivalent index rate. Interest on debt securities is generally payable monthly or quarterly, with the amortization of principal generally being deferred for several years from the date of the initial investment. In some cases, we may also defer payments of interest for the first few years after our investment. The principal amount of the debt securities and any accrued but unpaid interest generally becomes due at the maturity date. In addition, we generate revenue in the form of commitment, origination, structuring or diligence fees, fees for providing managerial assistance and possibly consulting fees. We capitalize loan origination fees, original issue discount and market discount, and we then amortize such amounts as interest income. Upon the prepayment of a loan or debt security, we record any unamortized loan origination fees as interest income. We record prepayment premiums on loans and debt securities as fee income when earned. Dividend income is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies.

Expenses

Our primary operating expenses include (1) investment advisory fees to WhiteHorse Advisers; (2) the allocable portion of overhead under the Administration Agreement; (3) the interest expense on our outstanding debt; and (4) other operating costs as detailed below. Our investment advisory fees compensate our investment adviser for its work in identifying, evaluating, negotiating, consummating and monitoring our investments.

We bear all other costs and expenses of our operations and transactions, including:

● our organization;

● calculating our net asset value and net asset value per share (including the costs and expenses of independent valuation firms);

● fees and expenses, including travel expenses, incurred by WhiteHorse Advisers or payable to third parties in performing due diligence on prospective portfolio companies, monitoring our investments and, if necessary, enforcing our rights;

● the costs of all future offerings of common shares and other securities, and other incurrences of debt;

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● the base management fee and any incentive fee;

● distributions on our shares;

● transfer agent and custody fees and expenses;

● amounts payable to third parties relating to, or associated with, evaluating, making and disposing of investments;

● brokerage fees and commissions;

● registration fees;

● listing fees;

● taxes;

● independent directors’ fees and expenses;

● costs associated with our reporting and compliance obligations under the 1940 Act and applicable U.S. federal and state securities laws;

● the costs of any reports, proxy statements or other notices to our stockholders, including printing costs;

● costs of holding stockholder meetings;

● our fidelity bond;

● directors and officers/errors and omissions liability insurance and any other insurance premiums;

● litigation, indemnification and other non-recurring or extraordinary expenses;

● direct costs and expenses of administration and operation, including audit and legal costs;

● fees and expenses associated with marketing efforts, including deal sourcing and marketing to financial sponsors;

● dues, fees and charges of any trade association of which we are a member; and

● all other expenses reasonably incurred by us or WhiteHorse Administration in connection with administering our business, including rent and our allocable portion of the costs and expenses of our chief financial officer and chief compliance officer along with their respective staffs.

WhiteHorse Advisers or WhiteHorse Administration may pay for certain expenses that we incur, which are subject to reimbursement by us.

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Recent Developments

For the period July 1, 2023 through August 8, 2023, we contributed one additional asset of senior secured debt facilities to the STRS JV.

On August 7, 2023, the 6.000% 2023 Notes, with a principal amount outstanding of $30.0 million, were fully repaid. Proceeds for the repayment were from existing cash balances and borrowings under the JPM Credit Facility.

Consolidated Results of Operations

Comparison of the Three and Six Months Ended June 30, 2023 and June 30, 2022

Set forth below are the consolidated results of operations for the three and six months ended June 30, 2023 and 2022.

	Three months ended June 30,				Three Months		Six months ended June 30,				Six Months
($ in thousands)		2023		2022	Variance			2023		2022	Variance
Total investment income	$	25,595	$	20,000	$	5,595	$	51,759	$	40,034	$	11,725
Total expenses		15,003		12,123		2,880		30,463		23,618		6,845
Net investment income		10,592		7,877		2,715		21,296		16,416		4,880
Net realized gains/(losses) on investments and foreign currency transactions		(289)		2,342		(2,631)		396		(16,123)		16,519
Net change in unrealized gains/(losses) on investments and foreign currency transactions		(6,422)		(2,870)		(3,552)		(10,305)		12,763		(23,068)
Net increase in net assets resulting from operations	$	3,881	$	7,349	$	(3,468)	$	11,387	$	13,056	$	(1,669)

The consolidated results of operations described below may not be indicative of the results we report in future periods. Net investment income and net increase in net assets can vary substantially from period to period due to various reasons, including the level of new investments and the recognition of realized gains and losses and unrealized appreciation and depreciation. As a result, period to period comparisons of net increases in net assets resulting from operations may not be meaningful.

Consolidated operating results for the three and six months ended June 30, 2023 and 2022 are as follows:

Net Investment Income

Net investment income for the three and six months ended June 30, 2023 totaled $10.6 million and $21.3 million, respectively. Net investment income for the three and six months ended June 30, 2022 totaled $7.9 million and $16.4 million, respectively. Net investment income increased by $2.7 million and $4.9 million for the three and six months ended June 30, 2023 from the three and six months ended June 30, 2022, as described below under “Investment Income” and “Operating Expenses.”

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Investment Income

The following table summarizes our investment income for the three and six months ended June 30, 2023 and 2022:

	Three months ended June 30,					Three Months	Six months ended June 30,					Six Months
($ in thousands)		2023		2022		Variance		2023		2022		Variance
Investment income (excluding STRS JV):
Interest and payment-in-kind income	$	20,991	$	16,101	$	4,890	$	42,207	$	32,902	$	9,305
Fee and dividend income		937		867		70		2,069		1,549		520
Investment income of STRS JV:
Interest and dividend income	$	3,667	$	3,032	$	635	$	7,483	$	5,583	$	1,900
Total investment income	$	25,595	$	20,000	$	5,595	$	51,759	$	40,034	$	11,725

Interest and payment-in-kind income increased $4.9 million and $9.3 million for the three and six months ended June 30, 2023, respectively, from the three and six months ended June 30, 2022, primarily attributable to an increase in base rates.

Fee and dividend income increased by $0.1 million and $0.5 million for the three and six months ended June 30, 2023, respectively, from the three and six months ended June 30, 2022 due to higher non-recurring fee income. We expect to generate some level of non-recurring fee income during most quarters from prepayments, amendments and other sources.

Interest and dividend income from STRS JV increased by $0.6 million and $1.9 million for the three and six months ended June 30, 2023, respectively, compared to the three and six months ended June 30, 2022, primarily attributable to an increase in base rates.

Operating Expenses

The following table summarizes our expenses for the three and six months ended June 30, 2023 and 2022:

	Three months ended June 30,				Three Months		Six months ended June 30,				Six Months
($ in thousands)		2023		2022	Variance			2023		2022	Variance
Interest expense	$	7,334	$	4,945	$	2,389	$	14,859	$	9,719	$	5,140
Base management fees		3,705		3,908		(203)		7,416		7,859		(443)
Performance-based incentive fees		2,648		1,837		811		5,324		3,264		2,060
Administrative service fees		170		170		—		341		341		—
General and administrative expenses		896		1,088		(192)		2,023		2,036		(13)
Total expenses, before excise tax		14,753		11,948		2,805		29,963		23,219		6,744
Excise tax		250		175		75		500		399		101
Total expenses, including excise tax	$	15,003	$	12,123	$	2,880	$	30,463	$	23,618	$	6,845

Interest expense increased $2.4 million and $5.1 million for the three and six months ended June 30, 2023, respectively, from the three and six months ended June 30, 2022, primarily due to higher weighted average interest rates. For the three and six months ended June 30, 2023, the weighted average outstanding borrowings were $426.7 million and $441.2 million, respectively, at a weighted average interest rate of 6.31% and 6.24%, respectively. For the three and six months ended June 30, 2022, the weighted average outstanding borrowings were $447.5 million and $474.3 million, respectively, at a weighted average interest rate of 3.92% and 3.80%, respectively.

Base management fees decreased by $0.2 million and $0.4 million for the three and six months ended June 30, 2023 from the three and six months ended June 30, 2022 due to lower gross assets.

Performance-based incentive fees increased by $0.8 million and $2.1 million for the three and six months ended June 30, 2023, respectively, from the three and six months ended June 30, 2022, mainly attributable to higher pre-

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incentive fee net investment income in the current period and the reversal of capital gains incentive fee accrual of $0.1 million and $0.7 million for the three and six months ended June 30, 2022, respectively.

General and administrative expenses decreased by $0.2 million for the three months ended June 30, 2023 from the three months ended June 30, 2022, primarily due to lower deal related expenses.

Excise Tax Expense

We have elected to be treated as a RIC under Subchapter M of the Code and operate in a manner so as to qualify for the tax treatment applicable to RICs. In order to be subject to tax as a RIC, we are required to meet certain source of income and asset diversification requirements, as well as timely distribute to our stockholders dividends for U.S. federal income tax purposes of an amount generally at least equal to 90% of investment company taxable income, as defined by the Code, and determined without regard to any deduction for dividends paid for each tax year. We have made and intend to continue to make the requisite distributions to our stockholders that will generally relieve us from U.S. federal income taxes.

Depending on the level of taxable income earned in a tax year, we may choose to retain taxable income in excess of current year distributions into the next tax year in an amount less than what would trigger payments of U.S. federal income tax under Subchapter M of the Code. We may then be required to incur a 4% excise tax on such income. To the extent that we determine that our estimated current year annual taxable income may exceed estimated current year distributions, we accrue excise tax, if any, on estimated excess taxable income as taxable income is earned.

Excise tax was $0.3 million and $0.5 million for the three and six months ended June 30, 2023, respectively. Excise tax was $0.2 million and $0.4 million for the three and six months ended June 30, 2022, respectively. As of June 30, 2023 and December 31, 2022, we accrued a net federal excise tax expense of $0.6 million and $1.0 million, respectively.

Net Realized and Unrealized Gains (Losses) on Investments

The following table shows the breakdown of net realized gains and losses on investments for the three and six months ended June 30, 2023 and 2022:

	Three months ended				Six months ended
($ in millions)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
AG Kings Holdings Inc.(1)	$	—	$	0.6	$	0.4	$	0.6
Arcole Acquisition Corp (PI Financial)		(0.3)		—		(0.3)		—
ATSG, Inc.		—		—		(0.1)		—
Cennox, Inc.		—		0.1		—		0.1
Grupo HIMA San Pablo, Inc.		—		—		—		(18.3)
Manchester Acquisition Sub LLC (d/b/a Draslovka Holding AS)		—		—		—		0.1
RCS Capital Corporation(2)		—		1.7		—		1.7
RLJ Pro-Vac, Inc.		—		0.1		—		0.1
Vessco Holdings, LLC		—		(0.1)		—		(0.1)
Other(3)		—		—		—		—
Total net realized gains/(losses) on investments	$	(0.3)	$	2.4	$	—	$	(15.8)

(1) Escrow receivable amounts were recognized in connection with cash proceeds received from realization events.

(2) Amount represents a recovery from a previously realized equity investment.

(3) Includes various investments with aggregate realized gains or losses less than $50,000.

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The following table shows the breakdown in the changes in unrealized appreciation and depreciation of investments for the three and six months ended June 30, 2023 and 2022:

	Three months ended				Six months ended
($ in millions)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Gross unrealized appreciation on investments(1)	$	5.1	$	4.2	$	6.5	$	8.1
Gross unrealized depreciation on investments		(12.2)		(6.9)		(16.4)		(6.5)
Reversal of prior period net unrealized (appreciation) depreciation upon a realization		1.1		(0.9)		0.4		10.4
Total unrealized appreciation (depreciation) on investments	$	(6.0)	$	(3.6)	$	(9.5)	$	12.0

(1) The three and six months ended June 30, 2022 includes unrealized appreciation from the AG Kings Holdings Inc. escrow receivable of $0.4 million and $1.2 million, respectively.

During the six months ended June 30, 2022, the realization from Grupo HIMA San Pablo, Inc. generated a net realized and unrealized loss of $6.9 million.

Financial Condition, Off-Balance Sheet Arrangements, Liquidity and Capital Resources

As a business development company, we distribute substantially all of our net income to our stockholders. We generate cash primarily from offerings of debt and equity securities, borrowings under the Credit Facility, and cash flows from operations, including interest earned from the temporary investment of cash in U.S. government securities and other high-quality debt investments that mature in one year or less. We expect to fund a portion of our investments through future borrowings. In the future, we may obtain borrowings under other credit facilities and from issuances of senior securities to the extent permitted by the 1940 Act. We may also borrow funds to the extent we determine that additional capital would allow us to take advantage of additional investment opportunities, if the market for debt financing presents attractively priced debt financing opportunities or if our board of directors determines that leveraging our portfolio would be in our best interest and the best interests of our stockholders.

Our board of directors may decide to issue common stock, such as through at-the-market offerings, direct placements or otherwise, to finance our operations rather than issuing debt or other senior securities. Any decision to sell shares below the then-current net asset value per share of our common stock is subject to stockholder approval and a determination by our board of directors that such issuance and sale is in our and our stockholders’ best interests. Any sale or other issuance of shares of our common stock at a price below net asset value per share results in immediate dilution to our stockholders’ interests in our common stock and a reduction in our net asset value per share. If we were to issue additional shares of our common stock during the next 12 months, we do not intend to issue shares below the then-current net asset value per share.

Restricted cash and cash equivalents include amounts that are collected and held by the trustee appointed as custodian of the assets securing the Credit Facility. Restricted cash is held by the trustee for the payment of interest expense and principal on the outstanding borrowings or reinvestment into new assets. Restricted cash that represents interest or fee income is transferred to unrestricted cash accounts by the trustee generally once a quarter after the payment of operating expenses and amounts due under the Credit Facility.

We may become a party to financial instruments with off-balance sheet risk in the normal course of our business to meet the financial needs of our portfolio companies. These instruments may include commitments to extend credit and involve elements of liquidity and credit risk in excess of the amount recognized on the consolidated statements of assets and liabilities. As of June 30, 2023 and December 31, 2022, we had commitments to fund approximately $38.8 million and $56.2 million, respectively, of revolving lines of credit or delayed draw facilities to our portfolio companies. We reasonably believe that we have sufficient assets to adequately cover and allow us to satisfy our outstanding unfunded commitments.

Our operating activities provided cash and cash equivalents of $32.3 million during the six months ended June 30, 2023, primarily from the net proceeds received from realizations and repayments on our investments, partially offset by acquisition of investments and cash used from the net change in working capital. Our financing activities used

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cash and cash equivalents of $35.5 million during the six months ended June 30, 2023, primarily due to repayments on the Credit Facility and the payment of distributions to stockholders.

Our operating activities provided cash and cash equivalents of $64.2 million during the six months ended June 30, 2022, primarily from the net proceeds received from realizations and repayments on our investments, partially offset by acquisition of investments and cash used from the net change in working capital. Our financing activities used cash and cash equivalents of $68.4 million during the six months ended June 30, 2022, primarily due to repayments on the Credit Facility and the payment of distributions to stockholders.

As of June 30, 2023, we had cash and cash equivalent resources of $23.1 million, including $12.7 million of restricted cash. As of June 30, 2023, we had approximately $96.4 million undrawn and available to be drawn under the Credit Facility based on the collateral and portfolio quality requirements stipulated in the related credit agreement.

As of December 31, 2022, we had cash and cash equivalent resources of $26.3 million, including $16.8 million of restricted cash. As of December 31, 2022, we had approximately $79.9 million undrawn and available to be drawn under the Credit Facility based on the collateral and portfolio quality requirements stipulated in the related credit agreement.

STRS JV

In January 2019, we and STRS Ohio formed a joint venture, STRS JV, that invests primarily in senior secured loans, including first lien and second lien facilities, to performing lower middle market companies across a broad range of industries that typically carry a floating interest index rate based on LIBOR, SOFR, or an equivalent index rate and have a term of three to six years. STRS JV invests in portfolio companies in the same industries in which we may directly invest. STRS JV was formed as a Delaware LLC and is not consolidated by either us or STRS Ohio for financial reporting purposes. On July 19, 2019 STRS JV formally launched operations. As of June 30, 2023, STRS JV had total assets of $343.5 million. As of December 31, 2022, STRS JV had total assets of $305.3 million.

We provide capital to STRS JV in the form of LLC equity interests and subordinated notes. In February 2023, we increased our capital commitment to the STRS JV in the amount of an additional $15.0 million, bringing our total capital commitment to the STRS JV to $115.0 million, comprised of $92.0 million of subordinated notes and $23.0 million of LLC equity interests. We previously increased increased our capital commitment in February 2022 to the STRS JV in the amount of an additional $25.0 million, bringing our then total capital commitment to the STRS JV to $100.0 million, comprised of $80.0 million of subordinated notes and $20.0 million of LLC equity interests.

As of June 30, 2023, we and STRS Ohio owned approximately 65.71% and 34.29%, respectively, of the LLC equity interests of STRS JV. As of June 30, 2023, our investment in STRS JV consisted of equity contributions and subordinated note advance commitments of $23.0 million and $92.0 million, respectively, of which $2.6 million and $10.5 million were unfunded, respectively.

As of December 31, 2022, we and STRS Ohio owned 66.67% and 33.33%, respectively, of the LLC equity interests of STRS JV. As of December 31, 2022, we had commitments to fund equity interests and subordinated notes in STRS JV of $20.0 million and $80.0 million, respectively, both of which were fully funded.

STRS JV is managed by a four-person board of managers, two of whom are selected by us and two of whom are selected by STRS Ohio. All material decisions with respect to STRS JV, including those involving its investment portfolio, require unanimous approval of a quorum of the board of managers. Quorum is defined as (i) the presence of two members of the board of managers; provided that at least one individual is present that was elected, designated or appointed by each member; (ii) the presence of three members of the board of managers; provided that the individual that was elected, designated or appointed by the member with only one individual present is entitled to cast two votes on each matter; or (iii) the presence of four members of the board of managers; provided that two individuals are present that were elected, designated or appointed by each member.

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Below is a summary of STRS JV’s portfolio as of June 30, 2023 and December 31, 2022:

($ in thousands)	As of June 30, 2023			As of December 31, 2022
Total investments(1)	$	324,501		$	284,259
Weighted average effective yield on total portfolio(2)		12.2	%		11.3	%
Number of portfolio companies in STRS JV		32			28
Largest portfolio company investment(1)		18,942			19,113
Total of five largest portfolio company investments(1)		82,846			77,635

(1) At fair value.

(2) Weighted average effective yield is computed by dividing (a) annualized interest income (including interest income resulting from the amortization of fees and discounts) by (b) the weighted average cost of investment.

STRS JV’s investments consisted of the following:

	As of June 30, 2023				As of December 31, 2022
($ in thousands)	Amortized Cost		Fair Value		Amortized Cost		Fair Value
First lien secured loans	$	326,219	$	324,501	$	287,940	$	284,259
Total	$	326,219	$	324,501	$	287,940	$	284,259

The following table shows the portfolio composition by industry grouping at fair value:

Industry ($ in thousands)	As of June 30, 2023				As of December 31, 2022
Advertising	$	11,904	3.7	%	$	11,703	4.1	%
Air Freight & Logistics		3,524	1.1			3,545	1.2
Application Software		13,304	4.1			13,375	4.7
Broadline Retail		18,900	5.8			19,113	6.7
Building Products		13,990	4.3			14,132	5.0
Construction & Engineering		14,888	4.6			8,432	3.0
Data Processing & Outsourced Services		14,717	4.5			14,536	5.1
Diversified Support Services		12,021	3.7			11,729	4.1
Drug Retail		5,124	1.6			—	—
Electronic Equipment & Instruments		13,180	4.1			13,187	4.6
Environmental & Facilities Services		27,289	8.4			20,708	7.3
Household Appliances		8,034	2.5			7,885	2.8
Industrial Machinery & Supplies & Components		19,233	5.9			14,999	5.3
Investment Banking & Brokerage		5,261	1.6			5,545	2.0
IT Consulting & Other Services		50,955	15.7			33,461	11.8
Packaged Foods & Meats		7,002	2.2			12,069	4.2
Paper & Plastic Packaging Products & Materials		6,481	2.0			8,059	2.8
Personal Care Products		6,026	1.9			3,949	1.4
Pharmaceuticals		15,621	4.8			14,712	5.2
Real Estate Operating Companies		11,950	3.7			11,121	3.9
Real Estate Services		7,584	2.3			8,548	3.0
Research & Consulting Services		8,736	2.7			8,686	3.1
Technology Hardware, Storage & Peripherals		18,942	5.8			14,884	5.2
Trading Companies & Distributors		9,835	3.0			9,881	3.5
Total	$	324,501	100.0	%	$	284,259	100.0	%

See Note 4 to our consolidated financial statements for further discussion on STRS JV’s portfolio and selected balance sheet information as of June 30, 2023 and December 31, 2022 and selected statement of operations information for the three and six months ended June 30, 2023 and 2022.

At-the-Market Offering

On March 31, 2023, we entered into an equity distribution agreement, or the Equity Distribution Agreement, with WhiteHorse Advisers, WhiteHorse Administration and B. Riley Securities, Inc., as the sales agent, or the Sales Agent, in connection with the sale of shares of our common stock, with an aggregate offering price of up to $35.0 million. The Equity Distribution Agreement provides that we may offer and sell shares of our common stock from time to time

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through the Sales Agent in amounts and at times to be determined by us (the “ATM Offering”). Actual sales will depend on a variety of factors to be determined by us from time to time, including market conditions and the trading price of our common stock. We expect to use all or substantially all of the net proceeds from the ATM Offering to invest in portfolio companies in accordance with our investment objective and strategies and for general corporate purposes.

On March 15, 2021, we previously entered into an equity distribution agreement, or the 2021 Equity Distribution Agreement, with WhiteHorse Advisers, WhiteHorse Administration and Raymond James & Associates, Inc., as the sales agent, or Raymond James, in connection with the sale of shares of our common stock, with an aggregate offering price of up to $35.0 million. The 2021 Equity Distribution Agreement provided that we may offer and sell shares of our common stock from time to time through the Raymond James in amounts and at times to be determined by us (the “2021 ATM Offering”). Actual sales depended on a variety of factors to be determined by us from time to time, including market conditions and the trading price of our common stock. We used all or substantially all of the net proceeds from the 2021 ATM Offering to invest in portfolio companies in accordance with our investment objective and strategies and for general corporate purposes. In March 2023, the 2021 Equity Distribution Agreement with Raymond James was no longer effective. Gross proceeds of $4.4 million were raised from the 2021 ATM Offering with Raymond James.

Credit Facility

On December 23, 2015, our wholly owned subsidiary WhiteHorse Credit I, LLC, or WhiteHorse Credit, entered into a revolving credit and security agreement with JPMorgan, as administrative agent and lender (the “Credit Facility”).

On December 21, 2020, the terms of the Credit Facility were amended to, among other things, (i) increase the minimum funding amount from $175.0 million to $200.0 million, (ii) increase the size of the facility from $250.0 million to $285.0 million, (iii) retain an accordion feature which allows for the expansion of the borrowing limit up to $350.0 million and (iv) provide for the implementation of certain changes relating to the transition away from LIBOR in the market.

On April 28, 2021, the terms of the Credit Facility were amended and restated to, among other things, enable WhiteHorse Credit to borrow in British Pounds or Euros.

On July 15, 2021, the terms of the Credit Facility were amended to, among other things, allow WhiteHorse Credit to reduce the applicable margins for interest rates to 2.35%, extend the non-call period from November 22, 2021 to November 22, 2022, extend the end of the reinvestment period from November 22, 2023 to November 22, 2024 and extend the scheduled termination date from November 22, 2024, to November 22, 2025.

On October 4, 2021, the terms of the Credit Facility were amended to, among other things, establish a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335.0 million for a three-month period beginning on October 4, 2021.

On January 4, 2022, the terms of the Credit Facility were amended to, among other things, continue to establish a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335.0 million for a four-month period that originally began on October 4, 2021.

On February 4, 2022, the terms of the Credit Facility were further amended to, among other things (i) increase WhiteHorse Credit’s availability under the Credit Facility from $285.0 million to $310.0 million (the “$25 Million Increase”), (ii) increase the minimum funding amount from $200.0 million to $217.0 million, (iii) extend an additional temporary increase of $25.0 million in availability under the Credit Facility, allowing WhiteHorse Credit to borrow up to $335.0 million through April 4, 2022 (the “$25 Million Temporary Increase”), and (iv) apply an annual interest rate equal to applicable SOFR plus 2.50% to any borrowings under the $25 Million Increase in the Credit Facility and the $25 Million Temporary Increase in availability under the Credit Facility.

On March 30, 2022, the terms of the Credit Facility were further amended to, among other things: (i) increase WhiteHorse Credit’s availability under the Credit Facility from $310.0 million to $335.0 million; (ii) retain an accordion feature which allows for the expansion of the borrowing limit up to $375.0 million; and (iii) increase the minimum funding amount from $217.0 million to $234.5 million.

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On April 12, 2023, the terms of the Credit Facility were further amended to, among other things, (i) apply an annual interest rate equal to the applicable base rate plus 2.50% to any USD denominated borrowings, and (ii) convert to SOFR for USD denominated borrowings effective June 6, 2023.

As of June 30, 2023, the Credit Facility provided for borrowings in an aggregate principal amount up to $335.0 million with an accordion feature which allows for the expansion of the borrowing limit up to $375.0 million, subject to consent from the Lender and other customary conditions. As of June 30, 2023, the required minimum outstanding borrowings under the Credit Facility were $234.5 million.

Under the Credit Facility, there are two coverage tests that WhiteHorse Credit must meet on specified compliance dates in order to permit WhiteHorse Credit to make new borrowings and to make distributions in the ordinary course: (i) a borrowing base test and (ii) a market value test. The borrowing base test compares, at any given time, the aggregate outstanding amount of all Lender advances under the Credit Facility less the amount of principal proceeds in respect of the collateral on deposit in the accounts to the net asset value of the collateral, as set forth in the credit agreement, as amended and restated from time to time, in connection therewith (the “Amended Loan Agreement”), and related documentation. To meet the borrowing base test, this ratio must be less than or equal to 60%, as set forth in the Amended Loan Agreement and related documentation. To meet the market value test, the value of WhiteHorse Credit’s portfolio investments must exceed a minimum of 167.5% of the aggregate outstanding amount of all Lender advances as set forth in the Amended Loan Agreement and related documentation.

As of June 30, 2023, advances under the Credit Facility are based on SOFR for USD denominated borrowings plus an annual spread of 2.50%. The Credit Facility bears interest at EURIBOR, for EUR denominated borrowings, CDOR for CAD denominated borrowings, Sterling Overnight Index Average, for GBP denominated, plus a spread of 2.35% on outstanding borrowings. Interest is payable quarterly in arrears. WhiteHorse Credit is required to pay a non-usage fee which accrues at 0.75% per annum on the average daily unused amount of the financing commitments, to the extent the aggregate principal amount available under the Credit Facility has not been borrowed. WhiteHorse Credit paid an upfront fee and incurred certain other customary costs and expenses in connection with obtaining the Credit Facility. Any amounts borrowed under the Credit Facility will mature, and all accrued and unpaid interest thereunder will be due and payable, on November 22, 2025.

The Credit Facility and the related documents require WhiteHorse Finance and WhiteHorse Credit to, among other things, agree to make certain customary representations and to comply with customary affirmative and negative covenants. The Credit Facility also includes customary events of default for credit facilities of this nature, including breaches of representations, warranties or covenants by WhiteHorse Finance or WhiteHorse Credit, the occurrence of a change in control, or failure to maintain certain required ratios.

If we fail to perform our obligations under the Amended Loan Agreement or the related agreements, an event of default may occur, which could cause the Lender to accelerate all of the outstanding debt and other obligations under the Credit Facility or to exercise other remedies under the Amended Loan Agreement. Any such developments could have a material adverse effect on our financial condition and results of operations.

If any of our contractual obligations discussed above is terminated, our costs under new agreements that we enter into may increase. In addition, we will likely incur significant time and expense in locating alternative parties to provide the services we expect to receive under our Investment Advisory Agreement and our Administration Agreement. Any new investment management agreement would also be subject to approval by our stockholders.

As of June 30, 2023, there was $238.6 million in outstanding borrowings under the Credit Facility and, based on collateral and portfolio requirements stipulated in the Credit Facility agreement, approximately $96.4 million was available to be drawn on such date. The Credit Facility is secured by all of the assets of WhiteHorse Credit, which included loans with a fair value of $600.0 million as of June 30, 2023.

As of December 31, 2022, there was $255.1 million in outstanding borrowings under the Credit Facility and, based on collateral and portfolio requirements stipulated in the Credit Facility agreement, approximately $79.9 million was available to be drawn on such date. The Credit Facility is secured by all of the assets of WhiteHorse Credit, which included loans with a fair value of $624.1 million as of December 31, 2022.

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6.000% 2023 Notes

On July 13, 2018, we entered into the 2023 Note Purchase Agreement to sell in a private offering $30 million of aggregate principal amount of unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act. Interest on the 6.000% 2023 Notes is payable semiannually on February 7 and August 7, at a fixed, annual rate of 6.000%. This interest rate is subject to increase (up to 6.50%) in the event that, subject to certain exceptions, the 6.000% 2023 Notes cease to have an investment grade rating. The 6.000% 2023 Notes mature on August 7, 2023, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 6.000% 2023 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on August 7, 2018. We used the net proceeds from this offering, together with cash on hand, to redeem existing debt.

5.375% 2025 Notes

On October 20, 2020, we entered into the 2025 Note Purchase Agreement to sell in a private offering $40 million of aggregate principal amount of unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act. Interest on the 5.375% 2025 Notes is payable semiannually on April 20 and October 20, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2025 Notes cease to have an investment grade rating. The 5.375% 2025 Notes mature on October 20, 2025, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 5.375% 2025 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on October 20, 2020. We used the net proceeds from this offering to redeem existing debt.

5.375% 2026 Notes

On December 4, 2020, we entered into the 2026 Note Purchase Agreement to sell in a private offering $10 million of aggregate principal amount of unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act. Interest on the 5.375% 2026 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2026 Notes cease to have an investment grade rating. The 5.375% 2026 Notes mature on December 4, 2026, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 5.375% 2026 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on December 4, 2020. We used the net proceeds from this offering to redeem existing debt.

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5.625% 2027 Notes

On December 4, 2020, we entered into the 2027 Note Purchase Agreement to sell in a private offering $10 million of aggregate principal amount of unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act. Interest on the 5.625% 2027 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.625%. This interest rate is subject to increase (up to 6.625%) in the event that, subject to certain exceptions, the 5.625% 2027 Notes cease to have an investment grade rating. The 5.625% 2027 Notes mature on December 4, 2027, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 5.625% 2027 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on December 4, 2020. We used the net proceeds from this offering to redeem existing debt.

4.000% 2026 Notes

On November 24, 2021, we completed a public offering of $75 million of aggregate principal amount of unsecured notes, the net proceeds of which were used to fund investments in debt and equity securities and repay outstanding indebtedness under the Credit Facility. Interest on the 4.000% 2026 Notes is paid semiannually on June 15, and December 15, at a fixed, annual rate of 4.00%. The 4.000% 2026 Notes will mature on December 15, 2026 and may be redeemed in whole or in part at any time prior to September 15, 2026, at par plus a “make-whole” premium, and thereafter at par. The 4.000% 2026 Notes will rank equally in right of payment with our other outstanding and future unsecured, unsubordinated indebtedness, including the 6.000% 2023 Notes, the 5.375% 2025 Notes, the 5.375% 2026 Notes, the 5.625% 2027 Notes and the 4.250% 2028 Notes. The 4.000% 2026 Notes will effectively rank behind all of our existing and future secured indebtedness (including indebtedness that is initially unsecured in respect of which we subsequently grant security) in right of payment, to the extent of the value of the assets securing such indebtedness, including our Credit Facility.

4.250% 2028 Notes

On December 6, 2021, we entered into the 2028 Note Purchase Agreement to sell in a private offering $25 million of aggregate principal amount of unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act. Interest on the 4.250% 2028 Notes is payable semiannually on June 6 and December 6, at a fixed, annual rate of 4.25%. This interest rate is subject to increase (up to 5.25%) in the event that, subject to certain exceptions, the 4.250% 2028 Notes cease to have an investment grade rating. The 4.250% 2028 Notes mature on December 6, 2028, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 4.250% 2028 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on December 6, 2021. We used the net proceeds from this offering to redeem existing debt.

Portfolio Investments and Yield

As of June 30, 2023, our investment portfolio consisted primarily of senior secured loans across 116 positions in 70 companies with an aggregate fair value of $728.4 million. As of June 30, 2023, the majority of our portfolio was comprised of senior secured loans to lower middle market borrowers and nearly all of those loans were variable-rate investments (primarily indexed to LIBOR or SOFR) with four fixed-rate loan investments representing 0.8% based on fair value. As of June 30, 2023, our portfolio had an average investment size of $5.5 million based on fair value and average debt investment size of $7.1 million, with investment sizes ranging from zero to $22.1 million and a weighted average effective yield of 12.5% (and a weighted average effective yield on income-producing debt investments of 13.4%).

As of December 31, 2022, our investment portfolio consisted primarily of senior secured loans across 115 positions in 72 companies with an aggregate fair value of $760.2 million. As of December 31, 2022, the majority of our portfolio was comprised of senior secured loans to lower middle market borrowers and nearly all of those loans were variable-rate investments, primarily indexed to either SOFR or LIBOR, with fixed-rate loan investments representing 0.4% based on fair value. As of December 31, 2022, our portfolio had an average investment size of $5.8 million based on fair value and average debt investment size of $7.0 million, with investment sizes ranging from zero to $22.9 million and a

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weighted average effective yield of 12.2% (and a weighted average effective yield on income-producing debt investments of 12.6%).

For the six months ended June 30, 2023, we invested $65.3 million in new and existing portfolio companies, offset by repayments and sales of $93.4 million. Proceeds from sales totaled $45.3 million while repayments included $6.4 million of scheduled repayments and $41.7 million of unscheduled repayments.

For the six months ended June 30, 2022, we invested $170.5 million in new and existing portfolio companies, offset by repayments and sales of $222.2 million. Proceeds from sales totaled $97.6 million while repayments included $6.0 million of scheduled repayments and $118.6 million of unscheduled repayments.

We actively monitor and manage our portfolio with regard to individual company performance as well as general market conditions. Investment decisions on new originations generally include an analysis of the impact of the new loan on our broader portfolio, including a “top-down” assessment of portfolio diversification and risk exposure. This assessment includes a review of portfolio concentration by issuer, industry, geography and type of credit as well as an evaluation of our portfolio’s exposure to macroeconomic factors and cyclical trends.

We believe that consistent, active monitoring of individual companies and the broader market is integral to portfolio management and a critical component of our investment process. Our investment adviser uses several methods to evaluate and monitor the performance and fair value of our investments, which may include the following:

● frequent discussions with management and sponsors, including board observation rights where possible;

● comparing/analyzing financial performance to the portfolio company’s business plan, as well as our internal projections developed at underwriting;

● tracking portfolio company compliance with covenants as well as other metrics identified at initial investment stage, such as acquisitions, divestitures, product development and specified management hires; and

● periodic review by the investment committee of each asset in the portfolio and more rigorous monitoring of “watch list” positions.

As part of the monitoring process, our investment adviser regularly assesses the risk profile of each of our investments and, on a quarterly basis, grades each investment on a risk scale of 1 to 5. This risk rating system is intended to identify and assess risks relative to when we initially made the investment and could be impacted by such factors as company-specific performance, changes in collateral, changes in potential exit opportunities or macroeconomic conditions.

All investments are initially assigned a rating of 2, as this grade represents a company that is meeting initial expectations with regard to performance and outlook. A rating may be improved to a 1 if, in the opinion of our investment adviser, a portfolio company’s risk of loss has been reduced relative to initial expectations. An investment will be assigned a rating of 3 if the risk of loss has increased relative to initial expectations and will be assigned a rating of 4 if our investment principal is at a material risk of not being fully repaid. A rating of 5 indicates an investment is in payment default and has significant risk of not receiving full repayment.

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The following table shows the distribution of our investments on the 1 to 5 investment performance rating scale at fair value:

	As of June 30, 2023				As of December 31, 2022
Investment Performance Rating ($ in millions)	Investments at Fair Value		Percentage of Total Portfolio		Investments at Fair Value		Percentage of Total Portfolio
1	$	103.9	14.3	%	$	65.2	8.6	%
2		451.4	62.0			503.5	66.2
3		150.2	20.6			168.6	22.2
4		22.9	3.1			22.9	3.0
5		—	—			—	—
Total Portfolio	$	728.4	100.0	%	$	760.2	100.0	%

Distributions

In order to maintain our status as a RIC and to avoid the imposition of corporate-level tax on income, we must distribute dividends to our stockholders each taxable year of an amount generally at least equal to the sum of 90% of our ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses out of the assets legally available for distribution. In order to avoid the imposition of certain excise taxes imposed on RICs, we must distribute dividends in respect of each calendar year of an amount at least equal to the sum of (1) 98% of our ordinary income (taking into account certain deferrals and elections) for the calendar year, (2) 98.2% of our capital gains in excess of capital losses, or capital gain net income, adjusted for certain ordinary losses, for the one-year period ending on October 31 of the calendar year and (3) any ordinary income and capital gain net income for preceding years that were not distributed during such years on which we incurred no U.S. federal income tax.

The timing and amount of our quarterly distributions, if any, are determined by our board of directors. While we intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution, we may not be able to achieve operating results that will allow us to make distributions at a specific level or to increase the amount of our distributions from time to time. In addition, we may be limited in our ability to make distributions due to the asset coverage requirements applicable to us as a business development company under the 1940 Act. If we do not distribute a certain percentage of our income annually, we will suffer adverse tax consequences, including the possible loss of our ability to be subject to tax as a RIC. We cannot assure stockholders that they will receive any distributions.

During the three and six months ended June 30, 2023 we declared to stockholders distributions of $0.37 and $0.795, respectively, per share for total distributions of $8.6 million and $18.5 million, respectively. During the three and six months ended June 30, 2022 we declared to stockholders distributions of $0.355 and $0.71, respectively, per share for total distributions of $8.3 million and $16.5 million, respectively.

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To the extent our taxable earnings fall below the total amount of our distributions for a fiscal year, a portion of those distributions may be deemed a return of capital to our stockholders for U.S. federal income tax purposes. Thus, the source of a distribution to our stockholders may be the original capital invested by the stockholder rather than our income or gains. During the six months ended June 30, 2023, we estimate that distributions to stockholders included $18.5 million of ordinary income, for tax purposes, based on earnings for the fiscal year ended December 31, 2022 and current earnings for the six months ended June 30, 2023. The specific tax characteristics of the distribution are reported to stockholders subject to tax reporting on Form 1099-DIV after the end of each calendar year and in our periodic reports with the SEC. Stockholders should read any written disclosure accompanying a distribution payment carefully and should not assume that the source of any distribution is our ordinary income or gains.

In addition, in order to satisfy the annual distribution requirement applicable to RICs, we may declare a significant portion of our dividends in shares of our common stock instead of in cash. As long as a portion of such dividend is paid in cash (which portion may be as low as 20% of such dividend under published guidance from the Internal Revenue Service) and certain requirements are met, the entire distribution will be treated as a dividend for U.S. federal income tax purposes. As a result, a stockholder generally would be subject to tax on 100% of the fair market value of the dividend on the date the dividend is received by the stockholder in the same manner as a cash dividend, even though most of the dividend was paid in shares of our common stock.

We have adopted an “opt out” dividend reinvestment plan, or the DRIP, for our common stockholders. As a result, if we declare a distribution, then stockholders’ cash distributions will be automatically reinvested in additional shares of our common stock unless a stockholder specifically “opts out” of our DRIP. If a stockholder opts out, that stockholder receives cash distributions. Although distributions paid in the form of additional shares of our common stock will generally be subject to U.S. federal, state and local taxes in the same manner as cash distributions, stockholders participating in our DRIP will not receive any corresponding cash distributions with which to pay any such applicable taxes.

Related Party Transactions

We have entered into a number of business relationships with affiliated or related parties, including the following:

● WhiteHorse Advisers manages our day-to-day operations and provides investment management services to us pursuant to the Investment Advisory Agreement.

● WhiteHorse Administration and certain of its affiliates provide us with the office facilities and administrative services, including access to the resources necessary for us to perform our obligations towards certain portfolio companies, pursuant to the Administration Agreement.

● We have entered into a license agreement with an affiliate of H.I.G. Capital pursuant to which we have been granted a non-exclusive, royalty-free license to use the “WhiteHorse” name.

We entered into the Investment Advisory Agreement with WhiteHorse Advisers in accordance with the 1940 Act on December 4, 2012, which was most recently amended on November 1, 2018. Under the Investment Advisory Agreement, WhiteHorse Advisers manages our day-to-day investment operations and provides us with access to personnel and an investment committee and certain other resources so that we may fulfill our obligation to act as a portfolio manager of WhiteHorse Credit under the Credit Facility. Payments under the Investment Advisory Agreement in future periods will be equal to (1) a management fee equal to 2.0% of the value of our consolidated gross assets; provided, however, that the management fee on consolidated gross assets financed using leverage over 200% asset coverage (in other words, over 1.0x debt to equity) will be equal to 1.25% and (2) an incentive fee based on our performance. See “Investment Advisory Agreement” in Note 7 to the consolidated financial statements.

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We also entered into the Administration Agreement with WhiteHorse Administration on December 4, 2012. Pursuant to the Administration Agreement, WhiteHorse Administration furnishes us with office facilities and administrative services necessary to conduct our day-to-day operations. WhiteHorse Administration also furnishes us with resources necessary for us to act as portfolio manager to WhiteHorse Credit under the Credit Facility. If requested to provide managerial assistance to our portfolio companies, WhiteHorse Administration will be paid an additional amount based on the services provided, which amount will not, in any case, exceed the amount we receive from the portfolio companies for such services. Payments under the Administration Agreement will be based upon our allocable portion of WhiteHorse Administration’s overhead expenses in performing its obligations under the Administration Agreement, including rent and our allocable portion of the costs of our chief financial officer and chief compliance officer along with their respective staffs.

WhiteHorse Advisers, WhiteHorse Administration or their respective affiliates may have other clients with similar, different or competing investment objectives. In serving in these multiple capacities, WhiteHorse Advisers, WhiteHorse Administration or their respective affiliates may have obligations to other clients or investors in those entities, the fulfillment of which may not be in the best interests of us or our stockholders. Such persons may face conflicts in the allocation of investment opportunities among us and other investment funds or accounts advised by or affiliated with WhiteHorse Advisers or WhiteHorse Administration. WhiteHorse Advisers or its affiliates will seek to allocate investment opportunities among eligible accounts in a manner that is fair and equitable over time and consistent with its allocation policy. However, we can offer no assurance that such opportunities will be allocated to us fairly or equitably in the short-term or over time.

We depend on the communications and information systems and policies of WhiteHorse Advisers and its affiliates as well as certain third-party service providers to monitor and prevent cybersecurity incidents. Our board of directors and management periodically review and assess the effectiveness of such communications and information systems and policies.

Critical Accounting Policies and Estimates

The preparation of our financial statements in accordance with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses. Changes in the economic environment, financial markets and any other parameters used in determining such estimates could cause actual results to differ. We have identified the following as critical accounting policies and estimates.

Principles of Consolidation

Under the investment company financial accounting guidance, as formally codified in Accounting Standards Codification, or ASC, Topic 946, Financial Services - Investment Companies, we are precluded from consolidating any entity other than another investment company. As provided under ASC Topic 946, we generally consolidate any investment company when we own 100% of its partners’ or members’ capital or equity units. We own a 100% equity interest in each of WhiteHorse Credit, WhiteHorse Finance (CA), LLC (“WhiteHorse California”), WHF PMA Holdco Blocker, LLC, WHF American Craft Blocker, LLC, WhiteHorse RCKC Holdings, LLC and WhiteHorse Finance Holdings, LLC, which are investment companies for accounting purposes. As such, we have consolidated the accounts of WhiteHorse Credit, WhiteHorse California, WHF PMA Holdco Blocker, LLC, WHF American Craft Blocker, LLC, WhiteHorse RCKC Holdings LLC and WhiteHorse Finance Holdings, LLC into our financial statements. As a result of this consolidation, the amount outstanding under the Credit Facility is treated as our indebtedness.

Valuation of Portfolio Investments

We value our investments in accordance with ASC Topic 820 - Fair Value Measurements and Disclosures. ASC Topic 820 defines fair value, establishes a framework for measuring fair value and expands disclosures about assets and liabilities measured at fair value. ASC Topic 820’s definition of fair value focuses on exit price in the principal, or most advantageous, market and prioritizes the use of market-based inputs over entity-specific inputs within a measurement of fair value.

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In addition, on December 3, 2020, the SEC announced that it adopted Rule 2a-5 under the 1940 Act, which establishes an updated regulatory framework for determining fair value in good faith for purposes of the 1940 Act. The new rule clarifies how fund boards can satisfy their fair valuation obligations in light of recent market developments. The rule permits boards to designate the fund’s investment adviser to perform fair value determinations, subject to board oversight and certain other conditions. Effective September 8, 2022, the Board designated the Investment Adviser as the Company’s valuation designee to perform the fair value determinations relating to all of our investments, subject to the oversight of the Board.

Our portfolio consists primarily of debt investments. These investments are valued at their bid quotations obtained from unaffiliated market makers or other financial institutions that trade in similar investments or based on prices provided by independent third party pricing services. For investments where there are no available bid quotations, fair value is derived using proprietary models that consider the analyses of independent valuation agents as well as credit risk, liquidity, market credit spreads and other applicable factors for similar transactions.

Due to the nature of our strategy, our portfolio includes relatively illiquid investments that are privately held. Valuations of privately held investments are inherently uncertain, may fluctuate over short periods of time and may be based on estimates. The determination of fair value may differ materially from the values that would have been used if a ready market for these investments existed. Our net asset value could be materially affected if the determinations regarding the fair value of our investments were materially higher or lower than the values that we ultimately realize upon the disposal of such investments.

The Investment Adviser, as the valuation designee, is ultimately responsible for determining the fair value of the portfolio investments that are not publicly traded, whose market prices are not readily available on a quarterly basis in good faith or any other situation where portfolio investments require a fair value determination. The Investment Adviser has retained one or more independent valuation firms to review the valuation of each portfolio investment that does not have a readily available market quotation at least once during each 12-month period. Independent valuation firms retained by the Investment Adviser provide a valuation review on approximately 25% of our investments for which market quotations are not readily available each quarter to ensure that the fair value of each investment for which a market quote is not readily available is reviewed by an independent valuation firm at least once during each 12-month period. However, the Investment Adviser does not intend to have de minimis investments of less than 1.5% of our total assets (up to an aggregate of 10% of our total assets) independently reviewed.

The valuation process is conducted at the end of each fiscal quarter, with a portion of our valuations of portfolio companies without market quotations subject to review by one or more independent valuation firms each quarter. When an external event occurs with respect to one of our portfolio companies, such as when a purchase transaction, public offering or subsequent equity sale occurs, we expect to use the pricing indicated by such external event to corroborate our valuation.

With respect to investments for which market quotations are not readily available, our Investment Adviser undertakes a multi-step valuation process each quarter, as described below:

● Our quarterly valuation process begins with each portfolio company or investment being initially valued by investment professionals of our Investment Adviser responsible for credit monitoring in accordance with our valuation procedures.

● Preliminary valuation conclusions are then documented and discussed with our investment committee and our Investment Adviser.

● The valuation committee, comprised of a number of representatives from different functions of the Investment Adviser, reviews these preliminary valuations, and on a quarterly basis, reviews the bases of the valuations by our Investment Adviser and the independent valuation firms.

● At least once annually, the valuation for each portfolio investment is reviewed by an independent valuation firm.

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● Our Board, through the Audit Committee, performs oversight of the fair valuation process in accordance with Rule 2a-5.

Fair value of publicly traded instruments is generally based on quoted market prices. Fair value of non-publicly traded instruments, and of publicly traded instruments for which quoted market prices are not readily available, may be determined based on other relevant factors, including without limitation, quotations from unaffiliated market makers or independent third party pricing services, the price activity of equivalent instruments and valuation pricing models. For those investments valued using quotations, the bid price is generally used unless we determine that it is not representative of an exit price.

Fair value is the price that would be received in the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Where available, fair value is based on observable market prices or parameters, or derived from such prices or parameters. Where observable prices or inputs are not available, valuation models are applied. These valuation models involve some level of management estimation and judgment, the degree of which is dependent on the price transparency for the instruments or market and the instruments’ complexity. Our fair value analysis includes an analysis of the value of any unfunded loan commitments. Financial investments recorded at fair value in the consolidated financial statements are categorized for disclosure purposes based upon the level of judgment associated with the inputs used to measure their value. The valuation hierarchical levels are based upon the transparency of the inputs to the valuation of the investment as of the measurement date. The three levels are defined as follows:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active public markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about what market participants would use in pricing an asset or liability.

Investments for which fair value is determined using inputs defined above as Level 3 are fair valued using the income and market approaches, which may include the discounted cash flow method, reference to performance statistics of industry comparables, relative comparable yield analysis and, in certain cases, third party valuations performed by independent valuation firms. The valuation methods can reference various factors and use various inputs such as assumed growth rates, capitalization rates and discount rates, loan-to-value ratios, liquidation value, relative capital structure priority, market comparables, compliance with applicable loan, covenant and interest coverage performance, book value, market derived multiples, reserve valuation, assessment of credit ratings of an underlying borrower, review of ongoing performance, review of financial projections as compared to actual performance, review of interest rate and yield risk. Such factors may be given different weighting depending on our assessment of the underlying investment, and we may analyze apparently comparable investments in different ways.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, a financial instrument’s categorization within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the financial instrument.

Fair value for each investment is derived using a combination of valuation methodologies that, in the judgment of the investment committee of the investment adviser are most relevant to such investment, including being based on one or more of the following: (i) market prices obtained from market makers for which the investment committee has deemed there to be enough breadth (number of quotes) and depth (firm bids) to be indicative of fair value, (ii) the price paid or realized in a completed transaction or binding offer received in an arm’s-length transaction, (iii) a discounted cash flow analysis, (iv) the guideline public company method, (v) the similar transaction method or (vi) the option pricing method.

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Investment Transactions and Related Investment Income and Expense

We record our investment transactions on a trade date basis, which is the date when we have determined that all material terms have been defined for the transactions. These transactions could possibly settle on a subsequent date depending on the transaction type. All related revenue and expenses attributable to these transactions are reflected on our consolidated statements of operations commencing on the trade date unless otherwise specified by the transaction documents. Realized gains and losses on investment transactions are recorded on the specific identification method.

We accrue interest income if we expect that ultimately we will be able to collect it. Generally, when an interest payment default occurs on a loan in our portfolio, or if our management otherwise believes that the issuer of the loan will not be able to service the loan and other obligations, we place the loan on non-accrual status and will cease recognizing interest income on that loan until all principal and interest is current through payment or until a restructuring occurs, such that the interest income is deemed to be collectible. However, we remain contractually entitled to this interest. We may make exceptions to this policy if the loan has sufficient collateral value and is in the process of collection. Accrued interest is written off when it becomes probable that such interest will not be collected and the amount of uncollectible interest can be reasonably estimated. Any original issue discount, as well as any other market purchase discount or premium on debt investments, are accreted or amortized to interest income or expense, respectively, over the maturity periods of the investments. Dividend income is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies.

Interest expense is recorded on an accrual basis. Certain expenses related to legal and tax consultation, due diligence, rating fees, valuation expenses and independent collateral appraisals may arise when we make certain investments. These expenses are recognized in the consolidated statements of operations as they are incurred.

Loan Origination, Facility, Commitment and Amendment Fees

We may receive fees in addition to interest income from the loans during the life of the investment. We may receive origination fees upon the origination of an investment. We defer these origination fees and deduct them from the cost basis of the investment and subsequently accrete them into income over the term of the loan. We may receive facility, commitment and amendment fees, which are paid to us on an ongoing basis. We accrue facility fees, sometimes referred to as asset management fees, as a percentage periodic fee on the base amount (either the funded facility amount or the committed principal amount). Commitment fees are based upon the undrawn portion committed by us and we record them on an accrual basis. Amendment fees are paid in connection with loan amendments and waivers and we account for them upon completion of the amendments or waivers, generally when such fees are receivable. We include any such fees in fee income on the consolidated statements of operations.

Recent Accounting Pronouncements

See Note 2 to our consolidated financial statements, which discusses recent accounting pronouncements applicable to us, if any.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We are subject to financial market risks, including changes in interest rates. During the period covered by our financial statements, many of the loans in our portfolio had floating interest rates, and we expect that many of our loans to portfolio companies in the future will also have floating interest rates. These loans are usually based on a floating rate based on LIBOR or SOFR that resets quarterly to the applicable LIBOR or SOFR. Interest rate fluctuations may have a substantial negative impact on our investments, the value of our common stock and our rate of return on invested capital. Since we plan to use debt to finance investments, our net investment income will depend, in part, upon the difference between the rate at which we borrow funds and the rate at which we invest those funds. As a result, we can offer no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income.

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Assuming that the consolidated statement of assets and liabilities as of June 30, 2023 was to remain constant and that we took no actions to alter our existing interest rate sensitivity, the following table shows the annualized impact of hypothetical base rate changes in interest rates (dollars in thousands).

	Increase (Decrease)		Increase (Decrease)		Net Increase
Basis Point Increase (Decrease)	in Interest Income		in Interest Expense		(Decrease)(1)
(300)	$	(21,014)	$	(7,159)	$	(13,855)
(200)		(14,010)		(4,773)		(9,237)
(100)		(7,005)		(2,386)		(4,619)
100		7,005		2,386		4,619
200		14,010		4,773		9,237
300		21,014		7,159		13,855

(1) Excludes the impact of incentive fees. See “Item 8. Consolidated Financial Statements and Supplementary Data—Notes to the Consolidated Financial Statements—Note 7 - Related Party Transactions” for further information.

As of June 30, 2023, nearly all of the performing floating rate investments in our portfolio had interest rate floors. Variable-rate investments subject to a floor generally reset periodically to the applicable floor and, in the case of investments in our portfolio, quarterly to a floor based on LIBOR or SOFR, only if the floor exceeds the index. Under these loans, we do not benefit from increases in interest rates until such rates exceed the floor and thereafter benefit from market rates above any such floor.

For a discussion of the risks associated with the discontinuation of LIBOR, see “Item 1A. Risk Factors — Risks Relating to Our Business and Structure — Since we are using debt to finance our investments, and we may use additional debt or preferred stock financing going forward, changes in interest rates may affect our cost of capital, net investment income, value of our common stock and our rate of return on invested capital” in our most recent Annual Report on Form 10-K.

Although management believes that this analysis is indicative of our existing sensitivity to interest rate changes, it does not adjust for changes in the credit markets, the size, credit quality or composition of the assets in our portfolio and other business developments, including borrowing, that could affect net increase in net assets resulting from operations or net income. It also does not adjust for the effect of the time-lag between a change in the relevant interest rate index and the rate adjustment under the applicable loan. Accordingly, we can offer no assurances that actual results would not differ materially from the statement above.

We may in the future hedge against interest rate fluctuations by using standard hedging instruments such as futures, options and forward contracts to the extent permitted under the 1940 Act and applicable commodities laws. While hedging activities may insulate us against adverse changes in interest rates, they may also limit our ability to participate in the benefits of lower interest rates with respect to the investments in our portfolio with fixed interest rates.

We may enter into foreign currency forward contracts from time to time to facilitate settlement of purchases and sales of investments denominated in foreign currencies and to hedge economically the impact that an adverse change in foreign exchange rates would have on the value of our investments denominated in foreign currencies. We currently utilize forward foreign currency exchange contracts to protect ourselves against fluctuations in exchange rates. See Note 3 to our consolidated financial statements. The following table provides a breakdown of our forward currency contracts for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
($ in thousands)		2023		2022		2023		2022
Realized gain (loss) on forward currency contracts	$	4	$	(8)	$	(3)	$	(8)
Unrealized appreciation (depreciation) on forward currency contracts		(12)		4		(6)		—
Total net realized and unrealized gains (losses) on forward currency contracts	$	(8)	$	(4)	$	(9)	$	(8)

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Item 4. Controls and Procedures

As of the period covered by this report, we, including our chief executive officer and chief financial officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures (as defined in Rule 13a-15(e) under the Exchange Act). Based on our evaluation, our management, including the chief executive officer and chief financial officer, concluded that our disclosure controls and procedures were effective in timely alerting management, including the chief executive officer and chief financial officer, of material information about us required to be included in our periodic SEC filings. However, in evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, are based upon certain assumptions about the likelihood of future events and can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. There has not been any change in our internal controls over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, our internal controls over financial reporting.

Part II. Other Information

Item 1. Legal Proceedings

Although we may, from time to time, be involved in litigation arising out of our operations in the normal course of business or otherwise, each of WhiteHorse Finance, WhiteHorse Advisers and WhiteHorse Administration is currently not a party to any material legal proceeding.

Item 1A. Risk Factors

In addition to the below risk factor and other information set forth in this report, you should carefully consider the “Risk Factors” discussed in our most recent Annual Report on Form 10-K and our most recent Quarterly Report on Form 10-Q, which could materially affect our business, financial condition and/or operating results. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially affect our business, financial condition and/or operating results.

Our business and the businesses of our portfolio companies are dependent on bank relationships and recent concerns associated with the banking system may adversely impact us.

The financial markets have recently experienced volatility in connection with concerns that some banks, especially small and regional banks, may have significant investment-related losses that might make it difficult to fund demands to withdraw deposits and other liquidity needs. Although the federal government has announced measures to assist certain banks and protect depositors, some banks have already been impacted and others may be adversely impacted, by such volatility. Our business and the businesses of our portfolio companies are dependent on bank relationships, and we are proactively monitoring the financial health of these relationships. Continued strain on the banking system may adversely impact the business, financial condition and results of operations of us and our portfolio companies

We hold our cash and cash equivalents that we use to meet our working capital needs in deposit accounts at multiple financial institutions. The balance held in these accounts may exceed the Federal Deposit Insurance Corporation standard deposit insurance limit or similar government guarantee schemes. If a financial institution in which we hold such funds fails or is subject to significant adverse conditions in the financial or credit markets, we could be subject to a risk of loss of all or a portion of such uninsured funds or be subject to a delay in accessing all or a portion of such uninsured funds. Any such loss or lack of access to these funds could adversely impact our short-term liquidity and ability to meet our obligations. We also maintain investment accounts with other financial institutions in which we hold our investments and, if access to the funds we use for working capital is impaired, we may not be able to sell investments or transfer funds from our investment accounts to new accounts on a timely basis sufficient to meet our working capital needs.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

During the three months ended June 30, 2023, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

Item 6. Exhibits

EXHIBIT INDEX

Number	Description
31.1*	Certification by Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002*
31.2*	Certification by Chief Financial Officer pursuant to Exchange Act Rule 13a-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002*
32.1*	Certification by Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
32.2*	Certification by Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
101.INS	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because XBRL tags are embedded within the Inline XBRL document.
101.SCH	Inline XBRL Taxonomy Extension Schema Document
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Filed herewith

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		WhiteHorse Finance, Inc.
Dated: August 8, 2023	By	/s/ Stuart Aronson
		Stuart Aronson
		Chief Executive Officer
		(Principal Executive Officer)
Dated: August 8, 2023	By	/s/ Joyson C. Thomas
		Joyson C. Thomas
		Chief Financial Officer
		(Principal Accounting and Financial Officer)

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EX-31.1

EXHIBIT 31.1

CERTIFICATION PURSUANT TO SECTION 302

CHIEF EXECUTIVE OFFICER CERTIFICATION

I, Stuart Aronson, Chief Executive Officer of WhiteHorse Finance, Inc., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of WhiteHorse Finance, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of and for the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2023

By:	/s/ Stuart Aronson
	Stuart Aronson
	Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION PURSUANT TO SECTION 302

CHIEF FINANCIAL OFFICER CERTIFICATION

I, Joyson C. Thomas, Chief Financial Officer of WhiteHorse Finance, Inc., certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of WhiteHorse Finance, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of and for the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 8, 2023

By:	/s/ Joyson C. Thomas
	Joyson C. Thomas
	Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

In connection with this Report on Form 10-Q for the three months ended June 30, 2023, (the “Report”) of WhiteHorse Finance, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Stuart Aronson, Chief Executive Officer of the Registrant, hereby certify, to the best of my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ Stuart Aronson

Stuart Aronson

Chief Executive Officer

August 8, 2023

EX-32.2

EXHIBIT 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

Pursuant to

Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350)

In connection with this Report on Form 10-Q for the three months ended June 30, 2023 (the “Report”) of WhiteHorse Finance, Inc. (the “Registrant”), as filed with the Securities and Exchange Commission on the date hereof, I, Joyson C. Thomas, Chief Financial Officer of the Registrant, hereby certify, to the best of my knowledge, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.

/s/ Joyson C. Thomas

Joyson C. Thomas

Chief Financial Officer

August 8, 2023

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Aug. 04, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2023
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--12-31
Securities Act File Number	814-00967
Entity Registrant Name	WHITEHORSE FINANCE, INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-4247759
Entity Address, State or Province	FL
Entity Address, Address Line One	1450 Brickell Avenue
Entity Address, Address Line Two	31st Floor
Entity Address, City or Town	Miami
Entity Address, Postal Zip Code	33131
City Area Code	305
Local Phone Number	381-6999
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	WHF
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		23,243,088
Entity Central Index Key	0001552198
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

Consolidated Statements of Assets and Liabilities - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Assets
Investments, at fair value	$ 728,352	$ 760,228
Cash and cash equivalents	10,412	9,508
Restricted cash and cash equivalents	10,624	14,683
Restricted foreign currency (cost of $2,027 and $2,066, respectively)	2,049	2,073
Interest and dividend receivable	7,220	7,814
Amounts receivable on unsettled investment transactions	11,770	283
Escrow receivable	711	711
Prepaid expenses and other receivables	1,039	1,174
Total assets	772,177	796,474
Liabilities
Debt (net of unamortized debt issuance costs of $3,938 and $4,718, respectively)	424,711	440,427
Distributions payable	8,600	8,251
Management fees payable	3,705	3,860
Incentive fees payable	5,115	5,618
Interest payable	2,750	2,774
Accounts payable and accrued expenses	1,467	2,329
Advances received from unfunded credit facilities	524	825
Unrealized depreciation on foreign currency forward contracts	9	3
Total liabilities	446,881	464,087
Commitments and contingencies (See Note 8)
Net assets
Common stock, 23,243,088 and 23,243,088 shares issued and outstanding, par value $0.001 per share, respectively, and 100,000,000 shares authorized	23	23
Paid-in capital in excess of par	339,240	339,240
Accumulated earnings (losses)	(13,967)	(6,876)
Total net assets	325,296	332,387
Total liabilities and total net assets	$ 772,177	$ 796,474
Number of shares outstanding	23,243,088	23,243,088
Net asset value per share	$ 14.00	$ 14.30
Non-controlled/non-affiliate company investments
Assets
Investments, at fair value	$ 607,111	$ 650,535
Non-controlled affiliate company investments
Assets
Investments, at fair value	6,262	9,533
Controlled affiliate company investments
Assets
Investments, at fair value	$ 114,979	$ 100,160

XML

Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Consolidated Statements of Assets and Liabilities
Investments, amortized cost	$ 760,023	$ 782,429
Restricted foreign currency, cost	2,027	2,066
Unamortized debt issuance costs	$ 3,938	$ 4,718
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	23,243,088	23,243,088
Common Stock, Shares, Outstanding	23,243,088	23,243,088

XML

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investment income
Total investment income	$ 25,595	$ 20,000	$ 51,759	$ 40,034
Expenses
Interest expense	7,334	4,945	14,859	9,719
Base management fees	3,705	3,908	7,416	7,859
Performance-based incentive fees	2,648	1,837	5,324	3,264
Administrative service fees	170	170	341	341
General and administrative expenses	896	1,088	2,023	2,036
Total expenses	14,753	11,948	29,963	23,219
Net investment income before excise tax	10,842	8,052	21,796	16,815
Excise tax	250	175	500	399
Net investment income after excise tax	10,592	7,877	21,296	16,416
Realized and unrealized gains (losses) on investments and foreign currency transactions
Net realized gains (losses)			(3)	(15,773)
Foreign currency transactions	41	(61)	402	(342)
Foreign currency forward contracts	4	(8)	(3)	(8)
Net realized gains (losses)	(289)	2,342	396	(16,123)
Net change in unrealized appreciation (depreciation)			(9,470)	12,036
Translation of assets and liabilities in foreign currencies	(458)	756	(829)	727
Foreign currency forward contracts	(12)	4	(6)
Net change in unrealized appreciation (depreciation)	(6,422)	(2,870)	(10,305)	12,763
Net realized and unrealized gains (losses) on investments and foreign currency transactions	(6,711)	(528)	(9,909)	(3,360)
Net increase in net assets resulting from operations	$ 3,881	$ 7,349	$ 11,387	$ 13,056
Per Common Share Data
Basic earnings per common share	$ 0.17	$ 0.32	$ 0.49	$ 0.56
Diluted earnings per common share	0.17	0.32	0.49	0.56
Dividends and distributions declared per common share	$ 0.37	$ 0.36	$ 0.80	$ 0.71
Basic weighted average common shares outstanding	23,243,088	23,240,651	23,243,088	23,215,792
Diluted weighted average common shares outstanding	23,243,088	23,240,651	23,243,088	23,215,792
Non-controlled/non-affiliate company investments
Investment income
Interest income	$ 19,307	$ 15,672	$ 38,928	$ 31,881
Payment-in-kind income	1,073	356	2,305	888
Fee income	920	679	1,953	1,141
Dividend income	17	79	32	168
Realized and unrealized gains (losses) on investments and foreign currency transactions
Net realized gains (losses)	5	686	336	(17,498)
Net change in unrealized appreciation (depreciation)	(2,330)	(4,546)	(4,427)	12,570
Non-controlled affiliate company investments
Investment income
Interest income		3		13
Payment-in-kind income		70		120
Paid in-kind income	115		66
Dividend income		109	84	240
Realized and unrealized gains (losses) on investments and foreign currency transactions
Net realized gains (losses)	(339)	1,725	(339)	1,725
Net change in unrealized appreciation (depreciation)	(3,022)	(586)	(4,522)	(2,206)
Controlled affiliate company investments
Investment income
Interest income	2,328	1,459	4,538	2,586
Payment-in-kind income	496		908
Dividend income	1,339	1,573	2,945	2,997
Realized and unrealized gains (losses) on investments and foreign currency transactions
Net change in unrealized appreciation (depreciation)	$ (600)	$ 1,502	$ (521)	$ 1,672

XML

Consolidated Statements of Changes in Net Assets - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Increase (Decrease) in Stockholders' Equity
Beginning Balance	$ 330,015	$ 332,387	$ 347,919	$ 349,751	$ 332,387	$ 349,751
Beginning Balance (in shares)		23,243,088			23,243,088
Stock issued in connection with offering (in shares)	0		31,675		0	80,421
Stock issued in connection with dividend reinvestment plan			$ 480	498
Net increase in net assets resulting from operations:
Net investment income after excise tax	$ 10,592	$ 10,704	7,877	8,539
Net realized gains (losses) on investments	(289)	685	2,342	(18,465)
Net change in unrealized appreciation (depreciation) on investments	(6,422)	(3,883)	(2,870)	15,633
Distributions declared	(8,600)	(9,878)	(8,251)	(8,234)
Ending Balance	$ 325,296	330,015	347,425	347,919	$ 325,296	$ 347,425
Ending Balance (in shares)	23,243,088				23,243,088
Public offering
Increase (Decrease) in Stockholders' Equity
Stock issued in connection with offering				197
At-the-market offering
Increase (Decrease) in Stockholders' Equity
Stock issued in connection with offering			(72)
Stock issued in connection with offering (in shares)						16,678
Common Stock
Increase (Decrease) in Stockholders' Equity
Beginning Balance	$ 23	$ 23	$ 23	$ 23	$ 23	$ 23
Beginning Balance (in shares)	23,243,088	23,243,088	23,211,413	23,162,667	23,243,088	23,162,667
Stock issued in connection with dividend reinvestment plan (in shares)			31,675	32,068
Net increase in net assets resulting from operations:
Ending Balance	$ 23	$ 23	$ 23	$ 23	$ 23	$ 23
Ending Balance (in shares)	23,243,088	23,243,088	23,243,088	23,211,413	23,243,088	23,243,088
Common Stock | Public offering
Increase (Decrease) in Stockholders' Equity
Stock issued in connection with offering (in shares)				16,678
Paid-in Capital in Excess of Par
Increase (Decrease) in Stockholders' Equity
Beginning Balance	$ 339,240	$ 339,240	$ 339,856	$ 339,161	$ 339,240	$ 339,161
Stock issued in connection with dividend reinvestment plan			480	498
Net increase in net assets resulting from operations:
Ending Balance	339,240	339,240	340,264	339,856	339,240	340,264
Paid-in Capital in Excess of Par | Public offering
Increase (Decrease) in Stockholders' Equity
Stock issued in connection with offering				197
Paid-in Capital in Excess of Par | At-the-market offering
Increase (Decrease) in Stockholders' Equity
Stock issued in connection with offering			(72)
Accumulated Earnings (Loss)
Increase (Decrease) in Stockholders' Equity
Beginning Balance	(9,248)	(6,876)	8,040	10,567	(6,876)	10,567
Net increase in net assets resulting from operations:
Net investment income after excise tax	10,592	10,704	7,877	8,539
Net realized gains (losses) on investments	(289)	685	2,342	(18,465)
Net change in unrealized appreciation (depreciation) on investments	(6,422)	(3,883)	(2,870)	15,633
Distributions declared	(8,600)	(9,878)	(8,251)	(8,234)
Ending Balance	$ (13,967)	$ (9,248)	$ 7,138	$ 8,040	$ (13,967)	$ 7,138

XML

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Cash flows from operating activities
Net Income (Loss)	$ 11,387	$ 13,056
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by / (used in) operating activities:
Paid-in-kind income	(3,668)	(956)
Net realized (gains) losses on investments	3	15,773
Net unrealized (appreciation) depreciation on investments	9,470	(12,036)
Net unrealized (appreciation) depreciation on translation of assets and liabilities in foreign currencies	829	(727)
Net unrealized (appreciation) depreciation on foreign currency forward contracts	6
Accretion of discount	(2,070)	(2,976)
Amortization of deferred financing costs	782	758
Acquisition of investments	(65,257)	(170,451)
Proceeds from principal payments and sales of portfolio investments	56,765	146,822
Proceeds from sales of portfolio investments to STRS JV	36,633	75,415
Net changes in operating assets and liabilities:
Interest and dividend receivable	594	1,234
Escrow receivable		585
Prepaid expenses and other receivables	135	402
Amounts receivable on unsettled investment transactions	(11,487)	(6,271)
Amounts payable on unsettled investment transactions		7,496
Management fees payable	(155)	142
Incentive fees payable	(503)	(2,782)
Accounts payable and accrued expenses	(859)	(967)
Interest payable	(24)	30
Advances received from unfunded credit facilities	(301)	(314)
Net cash provided by / (used in) operating activities	32,280	64,233
Cash flows from financing activities
Proceeds from issuance of common stock, net of offering costs		124
Borrowings	45,558	86,469
Repayments of debt	(62,902)	(138,915)
Deferred financing costs	(2)	(582)
Distributions paid to common stockholders, net of distributions reinvested	(18,129)	(15,477)
Net cash provided by / (used in) financing activities	(35,475)	(68,381)
Effect of exchange rate changes on cash	16	276
Net change in cash, cash equivalents and restricted cash	(3,179)	(3,872)
Cash, cash equivalents and restricted cash at beginning of period	26,264	22,468
Cash, cash equivalents and restricted cash at end of period	23,085	18,596
Supplemental and non-cash disclosure of cash flow information:
Interest paid	14,101	8,931
Distributions reinvested		978
Non-cash exchanges of investments	$ 1,840	$ 25,000

XML

Consolidated Statements of Cash Flows - Total cash, cash equivalents and restricted cash - USD ($) $ in Thousands	Jun. 30, 2023	Jun. 30, 2022
Reconciliation of cash, cash equivalents
Cash and cash equivalents	$ 10,412	$ 9,231
Restricted cash and cash equivalents	10,624	8,769
Restricted foreign currency	2,049	596
Total cash, cash equivalents and restricted cash presented in consolidated statements of cash flows	$ 23,085	$ 18,596

XML

Consolidated Schedule of Investments £ in Thousands, $ in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2023 CAD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2021 USD ($)
Schedule of Investments [Line Items]
Investments, amortized cost	$ 760,023	$ 782,429
Investments, at fair value	$ 728,352	$ 760,228
Percent of net assets	223.86%	228.75%	223.86%		228.75%	228.75%
Qualifying Assets Required Of Acquiree At Time Of Acquisition Of Total Assets	70.00%	70.00%
Qualifying Assets Of Acquired Of Total Assets	83.50%	82.80%
Investments Of Net Assets	223.86%	228.75%
Investment Of Total Assets	94.30%	95.40%
Additional interest for senior term debt		3.50%
Additional interest for senior term debt		3.00%
Interest Issuer May Pay In Cash Or Cash And PIK.		2.00%
Unrealized depreciation	$ (9)	$ (3)
Morgan Stanley
Schedule of Investments [Line Items]
Unrealized depreciation	$ (9)
Morgan Stanley | CAD
Schedule of Investments [Line Items]
Currency to be sold	554	327
Currency to be purchased		241
Morgan Stanley | GBP
Schedule of Investments [Line Items]
Currency to be sold		59
Currency to be purchased		69
Unrealized depreciation		$ (3)
Morgan Stanley | USD
Schedule of Investments [Line Items]
Currency to be purchased	410
Advertising
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Floor		6.75%			6.75%	6.75%
Investments, amortized cost	$ 12,047	$ 11,760
Investments, at fair value	$ 11,904	$ 11,703
Air Freight & Logistics
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Floor		6.50%			6.50%	6.50%
Investments, amortized cost	$ 3,513	$ 3,523
Investments, at fair value	$ 3,524	3,545
Application Software
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 13,118	13,162
Investments, at fair value	$ 13,304	13,375
Broadline Retail
Schedule of Investments [Line Items]
Investments, amortized cost		18,920
Investments, at fair value		$ 19,113
Building Products
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Floor		6.25%			6.25%	6.25%
Investments, amortized cost	$ 14,064	$ 14,105
Investments, at fair value	$ 13,990	14,132
Construction & Engineering
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 14,911	8,522
Investments, at fair value	$ 14,888	$ 8,432
Data Processing & Outsourced Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Floor		6.00%			6.00%	6.00%
Investments, amortized cost	$ 15,145	$ 15,413
Investments, at fair value	$ 14,717	14,536
Diversified Support Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 12,173	12,192
Investments, at fair value	$ 12,021	$ 11,729
Drug Retail
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 5,122
Investments, at fair value	$ 5,124
Electronic Equipment & Instruments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Floor		6.00%			6.00%	6.00%
Investments, amortized cost	$ 13,243	$ 13,284
Investments, at fair value	$ 13,180	13,187
Environmental & Facilities Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 27,195	20,725
Investments, at fair value	$ 27,289	20,708
Household Appliances
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 7,833	7,859
Investments, at fair value	$ 8,034	7,885
Industrial Machinery
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 19,155	15,145
Investments, at fair value	$ 19,233	14,999
Internet & Direct Marketing Retail
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 18,833
Investments, at fair value	$ 18,900
Investment Banking & Brokerage
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 5,232	5,507
Investments, at fair value	$ 5,261	5,545
IT Consulting And Other Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 51,090	34,184
Investments, at fair value	$ 50,955	33,461
Packaged Foods & Meats
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 7,060	12,312
Investments, at fair value	$ 7,002	12,069
Personal Products
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 5,973	3,895
Investments, at fair value	6,026	3,949
Paper Packaging
Schedule of Investments [Line Items]
Investments, amortized cost	6,506	8,085
Investments, at fair value	$ 6,481	8,059
Real Estate Operating Companies
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 12,067	11,246
Investments, at fair value	$ 11,950	11,121
Research & Consulting Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 8,746	8,782
Investments, at fair value	$ 8,736	8,686
Technology Hardware, Storage & Peripherals
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 18,875	14,874
Investments, at fair value	$ 18,942	14,884
Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 714,793	735,943
Investments, at fair value	$ 691,671	$ 719,068
Percent of net assets	212.59%	216.34%	212.59%		216.34%	216.34%
Debt Investments | Advertising
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 4,613
Investments, at fair value	$ 4,613
Percent of net assets	1.42%		1.42%
Debt Investments | Air Freight & Logistics
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 25,551	$ 15,819
Investments, at fair value	$ 25,131	$ 15,590
Percent of net assets	7.72%	4.69%	7.72%		4.69%	4.69%
Debt Investments | Alternative Carriers
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 12,230	$ 12,105
Investments, at fair value	$ 12,414	$ 12,068
Percent of net assets	3.82%	3.63%	3.82%		3.63%	3.63%
Debt Investments | Application Software
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 39,516	$ 29,947
Investments, at fair value	$ 35,429	$ 27,117
Percent of net assets	10.87%	8.14%	10.87%		8.14%	8.14%
Debt Investments | Asset Management & Custody Banks
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 10,139	$ 10,118
Investments, at fair value	$ 10,205	$ 10,144
Percent of net assets	3.14%	3.05%	3.14%		3.05%	3.05%
Debt Investments | Automotive Retail
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 13,868	$ 14,311
Investments, at fair value	$ 13,902	$ 14,363
Percent of net assets	4.27%	4.32%	4.27%		4.32%	4.32%
Debt Investments | Broadcasting
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 7,467	$ 7,908
Investments, at fair value	$ 7,415	$ 7,780
Percent of net assets	2.28%	2.34%	2.28%		2.34%	2.34%
Debt Investments | Broadline Retail
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 34,442	$ 35,005
Investments, at fair value	$ 34,541	$ 35,073
Percent of net assets	10.62%	10.55%	10.62%		10.55%	10.55%
Debt Investments | Building Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 23,850	$ 25,182
Investments, at fair value	$ 22,966	$ 23,576
Percent of net assets	7.05%	7.09%	7.05%		7.09%	7.09%
Debt Investments | Cable & Satellite
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 21,119	$ 21,089
Investments, at fair value	$ 20,612	$ 20,489
Percent of net assets	6.34%	6.16%	6.34%		6.16%	6.16%
Debt Investments | Commodity Chemicals
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 20,663	$ 20,345
Investments, at fair value	$ 20,899	$ 20,410
Percent of net assets	6.43%	6.14%	6.43%		6.14%	6.14%
Debt Investments | Construction Materials
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 7,965	$ 7,766
Investments, at fair value	$ 7,475	$ 7,459
Percent of net assets	2.29%	2.23%	2.29%		2.23%	2.23%
Debt Investments | Data Processing & Outsourced Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 22,179	$ 22,776
Investments, at fair value	$ 22,129	$ 22,817
Percent of net assets	6.80%	6.86%	6.80%		6.86%	6.86%
Debt Investments | Distributors
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 5,476	$ 5,465
Investments, at fair value	$ 1,734	$ 4,171
Percent of net assets	0.53%	1.26%	0.53%		1.26%	1.26%
Debt Investments | Diversified Chemicals
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 10,372	$ 14,880
Investments, at fair value	$ 9,691	$ 13,268
Percent of net assets	2.98%	4.00%	2.98%		4.00%	4.00%
Debt Investments | Diversified Support Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 9,559	$ 11,199
Investments, at fair value	$ 9,262	$ 10,833
Percent of net assets	2.85%	3.26%	2.85%		3.26%	3.26%
Debt Investments | Education Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 12,922	$ 13,028
Investments, at fair value	$ 12,510	$ 12,786
Percent of net assets	3.84%	3.83%	3.84%		3.83%	3.83%
Debt Investments | Electric Utilities
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 15,672	$ 10,341
Investments, at fair value	$ 15,743	$ 10,411
Percent of net assets	4.84%	3.13%	4.84%		3.13%	3.13%
Debt Investments | Environmental & Facilities Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 11,661	$ 18,031
Investments, at fair value	$ 11,408	$ 17,859
Percent of net assets	3.51%	5.39%	3.51%		5.39%	5.39%
Debt Investments | Health Care Facilities
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 10,012	$ 10,266
Investments, at fair value	$ 9,871	$ 10,131
Percent of net assets	3.03%	3.06%	3.03%		3.06%	3.06%
Debt Investments | Health Care Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 24,384	$ 24,241
Investments, at fair value	$ 23,711	$ 23,333
Percent of net assets	7.29%	7.02%	7.29%		7.02%	7.02%
Debt Investments | Health Care Supplies
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 19,964	$ 23,215
Investments, at fair value	$ 19,333	$ 23,090
Percent of net assets	5.94%	6.95%	5.94%		6.95%	6.95%
Debt Investments | Heavy Electrical Equipment
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 16,492	$ 14,750
Investments, at fair value	$ 16,449	$ 14,520
Percent of net assets	5.05%	4.36%	5.05%		4.36%	4.36%
Debt Investments | Home Furnishings
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 26,034	$ 25,338
Investments, at fair value	$ 25,634	$ 24,780
Percent of net assets	7.87%	7.46%	7.87%		7.46%	7.46%
Debt Investments | Household Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 11,264	$ 12,013
Investments, at fair value	$ 10,506	$ 11,153
Percent of net assets	3.23%	3.36%	3.23%		3.36%	3.36%
Debt Investments | Household Appliances
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 6,688	$ 6,680
Investments, at fair value	$ 6,171	$ 6,615
Percent of net assets	1.90%	1.99%	1.90%		1.99%	1.99%
Debt Investments | Industrial Machinery
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 7,560	$ 9,633
Investments, at fair value	$ 6,899	$ 9,360
Percent of net assets	2.12%	2.82%	2.12%		2.82%	2.82%
Debt Investments | Interactive Media & Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 7,795	$ 7,623
Investments, at fair value	$ 7,489	$ 7,545
Percent of net assets	2.30%	2.27%	2.30%		2.27%	2.27%
Debt Investments | Investment Banking & Brokerage
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 9,312	$ 11,833
Investments, at fair value	$ 9,325	$ 11,860
Percent of net assets	2.87%	3.57%	2.87%		3.57%	3.57%
Debt Investments | IT Consulting And Other Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 3,758	$ 13,620
Investments, at fair value	$ 3,735	$ 13,487
Percent of net assets	1.15%	4.06%	1.15%		4.06%	4.06%
Debt Investments | Leisure Facilities
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	us-gaap:InvestmentAffiliatedIssuerMember	Non-controlled/non-affiliate company investments	us-gaap:InvestmentAffiliatedIssuerMember		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 22,444	$ 22,077
Investments, at fair value	$ 22,253	$ 21,795
Percent of net assets	6.84%	6.55%	6.84%		6.55%	6.55%
Debt Investments | Leisure Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	us-gaap:InvestmentAffiliatedIssuerMember	Non-controlled/non-affiliate company investments	us-gaap:InvestmentAffiliatedIssuerMember		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 14,898	$ 14,055
Investments, at fair value	$ 13,749	$ 13,366
Percent of net assets	4.23%	4.02%	4.23%		4.02%	4.02%
Debt Investments | Life Sciences Tools & Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 4,939	$ 4,935
Investments, at fair value	$ 4,827	$ 4,824
Percent of net assets	1.48%	1.45%	1.48%		1.45%	1.45%
Debt Investments | Office Services & Supplies
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 30,832	$ 27,293
Investments, at fair value	$ 28,560	$ 25,832
Percent of net assets	8.79%	7.78%	8.79%		7.78%	7.78%
Debt Investments | Packaged Foods & Meats
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost		$ 11,198
Investments, at fair value		$ 10,941
Percent of net assets		3.30%			3.30%	3.30%
Debt Investments | Personal Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 11,181	$ 13,694
Investments, at fair value	$ 11,182	$ 13,482
Percent of net assets	3.44%	4.06%	3.44%		4.06%	4.06%
Debt Investments | Real Estate Operating Companies
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 5,925	$ 5,309
Investments, at fair value	$ 5,917	$ 5,309
Percent of net assets	1.82%	1.60%	1.82%		1.60%	1.60%
Debt Investments | Real Estate Development [Member]
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 10,012	$ 8,103
Investments, at fair value	$ 10,140	$ 8,103
Percent of net assets	3.12%	2.44%	3.12%		2.44%	2.44%
Debt Investments | Research & Consulting Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 21,596	$ 22,050
Investments, at fair value	$ 21,713	$ 21,896
Percent of net assets	6.67%	6.59%	6.67%		6.59%	6.59%
Debt Investments | Specialized Consumer Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Controlled affiliate company investments	Non-controlled/non-affiliate company investments		Controlled affiliate company investments	Controlled affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 22,874	$ 36,883
Investments, at fair value	$ 22,780	$ 36,892
Percent of net assets	7.00%	11.10%	7.00%		11.10%	11.10%
Debt Investments | Specialized Finance
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 81,472	$ 80,000
Investments, at fair value	$ 81,472	$ 80,000
Percent of net assets	25.05%	24.07%	25.05%		24.07%	24.07%
Debt Investments | Systems Software
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 19,568	$ 19,353
Investments, at fair value	$ 15,188	$ 17,847
Percent of net assets	4.67%	5.37%	4.67%		5.37%	5.37%
Debt Investments | Technology Hardware, Storage & Peripherals
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 16,525	$ 16,466
Investments, at fair value	$ 16,688	$ 16,693
Percent of net assets	5.13%	5.02%	5.13%		5.02%	5.02%
Subordinated Debt [Member]
Schedule of Investments [Line Items]
Investments, amortized cost	$ 167	$ 167
Investments, at fair value	$ 167	167
Equity Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 45,230	46,486
Investments, at fair value	$ 36,681	$ 41,160
Percent of net assets	11.27%	12.41%	11.27%		12.41%	12.41%
Equity Investments | Advertising
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 601	$ 258
Investments, at fair value	$ 629	$ 154
Percent of net assets	0.19%	0.05%	0.19%		0.05%	0.05%
Equity Investments | Air Freight & Logistics
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 1,250	$ 1,250
Investments, at fair value	$ 424	$ 517
Percent of net assets	0.13%	0.16%	0.13%		0.16%	0.16%
Equity Investments | Broadline Retail
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	us-gaap:InvestmentAffiliatedIssuerMember	Non-controlled/non-affiliate company investments		us-gaap:InvestmentAffiliatedIssuerMember	us-gaap:InvestmentAffiliatedIssuerMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 1,614	$ 1,614
Investments, at fair value	$ 1,907	$ 2,118
Percent of net assets	0.58%	0.63%	0.58%		0.63%	0.63%
Equity Investments | Building Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 423	$ 423
Investments, at fair value	$ 1,143	$ 786
Percent of net assets	0.35%	0.24%	0.35%		0.24%	0.24%
Equity Investments | Diversified Chemicals
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 4,537	$ 2,890
Investments, at fair value	$ 247	$ 3,788
Percent of net assets	0.08%	1.14%	0.08%		1.14%	1.14%
Equity Investments | Diversified Support Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 356	$ 351
Investments, at fair value	$ 221	$ 202
Percent of net assets	0.07%	0.06%	0.07%		0.06%	0.06%
Equity Investments | Education Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 167	$ 167
Investments, at fair value	$ 73	$ 83
Percent of net assets	0.02%	0.02%	0.02%		0.02%	0.02%
Equity Investments | Environmental & Facilities Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 825	$ 825
Investments, at fair value	$ 972	$ 600
Percent of net assets	0.30%	0.18%	0.30%		0.18%	0.18%
Equity Investments | Industrial Machinery
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 788	$ 667
Investments, at fair value	$ 1,190	$ 514
Percent of net assets	0.37%	0.15%	0.37%		0.15%	0.15%
Equity Investments | Interactive Media & Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 851	$ 851
Investments, at fair value	$ 1,618	$ 1,943
Percent of net assets	0.50%	0.58%	0.50%		0.58%	0.58%
Equity Investments | Investment Banking & Brokerage
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled affiliate company investments			Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost		$ 6,944
Investments, at fair value		$ 6,380
Percent of net assets		1.92%			1.92%	1.92%
Equity Investments | IT Consulting And Other Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 1,926	$ 1,612
Investments, at fair value	$ 2,145	$ 1,921
Percent of net assets	0.66%	0.58%	0.66%		0.58%	0.58%
Equity Investments | Leisure Facilities
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 2,734	$ 2,734
Investments, at fair value	$ 256	$ 184
Percent of net assets	0.08%	0.06%	0.08%		0.06%	0.06%
Equity Investments | Leisure Products
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments	Non-controlled affiliate company investments		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 4,060	$ 4,060
Percent of net assets		0.01%			0.01%	0.01%
Equity Investments | Office Services & Supplies
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Equity Investments | Other Diversified Financial Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investments, amortized cost	$ 2,890
Investments, at fair value	$ 3,397
Percent of net assets	1.04%		1.04%
Equity Investments | Paper Packaging
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 400	$ 400
Investments, at fair value	$ 123	$ 283
Percent of net assets	0.04%	0.09%	0.04%		0.09%	0.09%
Equity Investments | Real Estate Operating Companies
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 600	$ 600
Investments, at fair value	$ 433	$ 600
Percent of net assets	0.13%	0.18%	0.13%		0.18%	0.18%
Equity Investments | Specialized Consumer Services
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 840	$ 840
Investments, at fair value	$ 974	$ 927
Percent of net assets	0.30%	0.29%	0.30%		0.29%	0.29%
Equity Investments | Specialized Finance
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investments, amortized cost	$ 20,368	$ 20,000
Investments, at fair value	$ 20,929	$ 20,160
Percent of net assets	6.43%	6.07%	6.43%		6.07%	6.07%
Pressurized Holdings, LLC [Member] | Preferred Units [Member]
Schedule of Investments [Line Items]
Investments, amortized cost	$ 3,892
Sklar Holdings, Inc [Member] | First Lien Secured Term Loan [Member]
Schedule of Investments [Line Items]
Investments, amortized cost				$ 3,339
Non-controlled/non-affiliate company investments
Schedule of Investments [Line Items]
Investments, at fair value	$ 607,111	$ 650,535
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:ABBCon-ciseOpticalGroupLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Health Care Supplies			Health Care Supplies	Health Care Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Base Rate [Member]			Base Rate [Member]	Base Rate [Member]
Floor		0.75%			0.75%	0.75%
Spread Above Index		6.51%			6.51%	6.51%
Interest Rate		13.98%			13.98%	13.98%
Acquisition Date		Feb. 23, 2022
Maturity Date		Feb. 23, 2028			Feb. 23, 2028	Feb. 23, 2028
Principal/Share Amount		$ 2,151
Investments, amortized cost		2,105
Investments, at fair value		$ 2,093
Percent of net assets		0.63%			0.63%	0.63%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ABBCon-ciseOpticalGroupLLCMember	whf:ABBCon-ciseOpticalGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Supplies	Health Care Supplies	Health Care Supplies		Health Care Supplies	Health Care Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	0.75%	0.75%	0.75%		0.75%	0.75%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.88%	12.67%	12.88%		12.67%	12.67%
Acquisition Date	Feb. 23, 2022	Feb. 23, 2022
Maturity Date	Feb. 23, 2028	Feb. 23, 2028	Feb. 23, 2028		Feb. 23, 2028	Feb. 23, 2028
Principal/Share Amount	$ 20,358	$ 21,573
Investments, amortized cost	19,964	21,110
Investments, at fair value	$ 19,333	$ 20,997
Percent of net assets	5.94%	6.32%	5.94%		6.32%	6.32%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: ALM Media, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ALMMediaLLCMember	whf:ALMMediaLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services		Research & Consulting Services	Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.50%	6.00%		6.50%	6.50%
Interest Rate	11.39%	10.91%	11.39%		10.91%	10.91%
Acquisition Date	Nov. 25, 2019	Nov. 25, 2019
Maturity Date	Nov. 25, 2024	Nov. 25, 2024	Nov. 25, 2024		Nov. 25, 2024	Nov. 25, 2024
Principal/Share Amount	$ 12,932	$ 13,388
Investments, amortized cost	12,859	13,286
Investments, at fair value	$ 12,853	$ 13,255
Percent of net assets	3.95%	3.99%	3.95%		3.99%	3.99%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: ATSG Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ATSGIncMember	whf:ATSGIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services		IT Consulting And Other Services	IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.72%	11.14%	11.72%		11.14%	11.14%
Acquisition Date	Nov. 12, 2021	Nov. 12, 2021
Maturity Date	Nov. 12, 2026	Nov. 12, 2026	Nov. 12, 2026		Nov. 12, 2026	Nov. 12, 2026
Principal/Share Amount	$ 3,809	$ 13,833
Investments, amortized cost	3,758	13,620
Investments, at fair value	$ 3,735	$ 13,487
Percent of net assets	1.15%	4.06%	1.15%		4.06%	4.06%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: ATSG, First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ATSGIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.72%		11.72%
Acquisition Date	Mar. 27, 2023
Maturity Date	Nov. 12, 2026		Nov. 12, 2026
Principal/Share Amount	$ 9,937
Investments, amortized cost	9,706
Investments, at fair value	$ 9,744
Investment, Identifier [Axis]: Aeyon LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AeyonLLCMember	whf:AeyonLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services		Research & Consulting Services	Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.88%	8.88%	8.88%		8.88%	8.88%
Interest Rate	13.97%	13.19%	13.97%		13.19%	13.19%
Acquisition Date	Feb. 10, 2022	Feb. 10, 2022
Maturity Date	Feb. 10, 2027	Feb. 10, 2027	Feb. 10, 2027		Feb. 10, 2027	Feb. 10, 2027
Principal/Share Amount	$ 8,865	$ 8,910
Investments, amortized cost	8,737	8,764
Investments, at fair value	$ 8,860	$ 8,641
Percent of net assets	2.72%	2.60%	2.72%		2.60%	2.60%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: American Crafts Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Controlled affiliate company investments	Controlled affiliate company investments		Controlled affiliate company investments	Controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]		Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies	Office Services & Supplies	Office Services & Supplies		Office Services & Supplies	Office Services & Supplies
Acquisition Date	Dec. 22, 2022	Dec. 22, 2022
Maturity Date	Dec. 22, 2032	Dec. 22, 2032	Dec. 22, 2032		Dec. 22, 2032	Dec. 22, 2032
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: American Crafts LC First Lien Secured Term Loan One
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investments, at fair value	$ 6,827
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies	Office Services & Supplies	Office Services & Supplies		Office Services & Supplies	Office Services & Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.50%	8.50%	8.50%		8.50%	8.50%
Interest Rate		12.88%			12.88%	12.88%
PIK interest rate	13.69%		13.69%
Acquisition Date	Jan. 25, 2022	Oct. 01, 2022
Maturity Date	May 28, 2026	May 28, 2026	May 28, 2026		May 28, 2026	May 28, 2026
Principal/Share Amount	$ 1,476	$ 1,367
Investments, amortized cost	1,458	1,346
Investments, at fair value	$ 1,146	$ 1,147
Percent of net assets	0.35%	0.35%	0.35%		0.35%	0.35%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies	Office Services & Supplies	Office Services & Supplies		Office Services & Supplies	Office Services & Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.50%	8.50%	8.50%		8.50%	8.50%
Interest Rate		12.88%			12.88%	12.88%
PIK interest rate	13.69%		13.69%
Acquisition Date	May 28, 2021	May 28, 2021
Maturity Date	May 28, 2026	May 28, 2026	May 28, 2026		May 28, 2026	May 28, 2026
Principal/Share Amount	$ 8,791	$ 9,555
Investments, amortized cost	8,720	9,473
Investments, at fair value	$ 6,827	$ 8,244
Percent of net assets	2.10%	2.48%	2.10%		2.48%	2.48%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: American Crafts, LC Priority First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments		Controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies		Office Services & Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	8.50%		8.50%
PIK interest rate	13.69%		13.69%
Acquisition Date	Dec. 22, 2022
Maturity Date	May 28, 2026		May 28, 2026
Principal/Share Amount	$ 4,750
Investments, amortized cost	4,750
Investments, at fair value	$ 4,605
Percent of net assets	1.42%		1.42%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: Arcole Holding Corporation Shares
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled affiliate company investments			Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ArcoleHoldingCorporationMember	whf:ArcoleHoldingCorporationMember
Investment, Type [Extensible Enumeration]	Equity Investments	Equity Investments	Equity Investments		Equity Investments	Equity Investments
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Investment Banking & Brokerage			Investment Banking & Brokerage	Investment Banking & Brokerage
Acquisition Date		Oct. 01, 2020
Investments, amortized cost		$ 6,944
Investments, at fair value		$ 6,380					$ 6,874
Percent of net assets		1.92%			1.92%	1.92%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Non-income Producing [true false]		false			false	false
Investment, Identifier [Axis]: Arcstor Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ArcstorMidcoLLCMember	whf:ArcstorMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Systems Software	Systems Software	Systems Software		Systems Software	Systems Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.70%	11.92%	12.70%		11.92%	11.92%
Investment, interest rate, paid in cash	8.95%	8.17%	8.95%		8.17%	8.17%
PIK interest rate	3.75%	3.75%	3.75%		3.75%	3.75%
Acquisition Date	Mar. 16, 2021	Mar. 16, 2021
Maturity Date	Mar. 16, 2027	Mar. 16, 2027	Mar. 16, 2027		Mar. 16, 2027	Mar. 16, 2027
Principal/Share Amount	$ 20,237	$ 19,623
Investments, amortized cost	19,568	19,353
Investments, at fair value	$ 15,188	$ 17,847
Percent of net assets	4.67%	5.37%	4.67%		5.37%	5.37%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Atlas Purchaser, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AtlasPurchaserIncMember	whf:AtlasPurchaserIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software		Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	0.75%	0.75%	0.75%		0.75%	0.75%
Spread Above Index	5.25%	5.25%	5.25%		5.25%	5.25%
Interest Rate	10.39%	8.68%	10.39%		8.68%	8.68%
Acquisition Date	Aug. 29, 2022	Aug. 29, 2022
Maturity Date	May 08, 2028	May 08, 2028	May 08, 2028		May 08, 2028	May 08, 2028
Principal/Share Amount	$ 3,082	$ 3,097
Investments, amortized cost	2,643	2,611
Investments, at fair value	$ 2,348	$ 2,556
Percent of net assets	0.72%	0.76%	0.72%		0.76%	0.76%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Atlas Purchaser, Inc Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AtlasPurchaserIncMember	whf:AtlasPurchaserIncMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software		Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	0.75%	0.75%	0.75%		0.75%	0.75%
Spread Above Index	9.00%	9.00%	9.00%		9.00%	9.00%
Interest Rate	14.50%	14.20%	14.50%		14.20%	14.20%
Acquisition Date	May 03, 2021	May 03, 2021
Maturity Date	May 07, 2029	May 07, 2029	May 07, 2029		May 07, 2029	May 07, 2029
Principal/Share Amount	$ 15,000	$ 15,000
Investments, amortized cost	14,670	14,642
Investments, at fair value	$ 10,876	$ 11,969
Percent of net assets	3.34%	3.59%	3.34%		3.59%	3.59%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Avision Holdings, LLC Class A LLC Interests
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:AvisionHoldingsLLCMember	whf:AvisionHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember		whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising	Advertising	Advertising		Advertising	Advertising
Acquisition Date	Dec. 15, 2021	Dec. 15, 2021
Principal/Share Amount	$ 218	$ 208
Investments, amortized cost	268	258
Investments, at fair value	$ 296	$ 154
Percent of net assets	0.09%	0.05%	0.09%		0.05%	0.05%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	10.50%	9.00%	10.50%		9.00%	9.00%
Interest Rate	15.70%	13.38%	15.70%		13.38%	13.38%
Investment, interest rate, paid in cash	13.70%	12.38%	13.70%		12.38%	12.38%
PIK interest rate	2.00%	1.00%	2.00%		1.00%	1.00%
Acquisition Date	Dec. 02, 2021	Apr. 29, 2022
Maturity Date	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025		Aug. 28, 2025	Aug. 28, 2025
Principal/Share Amount	$ 2,617	$ 2,593
Investments, amortized cost	2,588	2,557
Investments, at fair value	$ 2,588	$ 2,541
Percent of net assets	0.80%	0.76%	0.80%		0.76%	0.76%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	10.50%	9.00%	10.50%		9.00%	9.00%
Interest Rate	15.70%	13.38%	15.70%		13.38%	13.38%
Investment, interest rate, paid in cash	13.70%	12.38%	13.70%		12.38%	12.38%
PIK interest rate	2.00%	1.00%	2.00%		1.00%	1.00%
Acquisition Date	Aug. 28, 2020	Aug. 28, 2020
Maturity Date	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025		Aug. 28, 2025	Aug. 28, 2025
Principal/Share Amount	$ 12,837	$ 12,720
Investments, amortized cost	12,700	12,550
Investments, at fair value	$ 12,694	$ 12,465
Percent of net assets	3.90%	3.75%	3.90%		3.75%	3.75%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: BBQ Buyer, LLC Shares
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Acquisition Date	Aug. 28, 2020	Aug. 28, 2020
Principal/Share Amount	$ 1,100	$ 1,100
Investments, amortized cost	1,100	1,100
Investments, at fair value	$ 1,176	$ 1,404
Percent of net assets	0.36%	0.42%	0.36%		0.42%	0.42%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: BL Products Parent, LP Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember		whf:ClassAUnitsMember	whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery	Industrial Machinery	Industrial Machinery		Industrial Machinery	Industrial Machinery
Acquisition Date	Feb. 01, 2022	Feb. 01, 2022
Principal/Share Amount	$ 733	$ 667
Investments, amortized cost	788	667
Investments, at fair value	$ 1,190	$ 514
Percent of net assets	0.37%	0.15%	0.37%		0.15%	0.15%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: BLP Buyer, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Industrial Machinery			Industrial Machinery	Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.25%			1.25%	1.25%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		10.21%			10.21%	10.21%
Acquisition Date		Oct. 03, 2022
Maturity Date		Feb. 01, 2027			Feb. 01, 2027	Feb. 01, 2027
Principal/Share Amount		$ 2,149
Investments, amortized cost		2,098
Investments, at fair value		$ 2,091
Percent of net assets		0.63%			0.63%	0.63%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 10.67%, Due 2/1/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.44%	10.67%	11.44%		10.67%	10.67%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027		Feb. 01, 2027	Feb. 01, 2027
Principal/Share Amount	$ 574	$ 274
Investments, amortized cost	566	270
Investments, at fair value	$ 565	$ 259
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Term Loan, Floor 1.25%, Spread SF plus 6.25%, Rate 10.49%, Due 2/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.37%	1.25%	1.37%		1.25%	1.25%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.61%	10.49%	11.61%		10.49%	10.49%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027		Feb. 01, 2027	Feb. 01, 2027
Principal/Share Amount	$ 12,285	$ 8,188
Investments, amortized cost	12,068	8,054
Investments, at fair value	$ 12,074	$ 7,939
Investment, Identifier [Axis]: BPII-JL Group Holdings LP Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BPII-JLGroupHoldingsLPMember	whf:BPII-JLGroupHoldingsLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember		whf:ClassAUnitsMember	whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Acquisition Date	Dec. 29, 2021	Dec. 29, 2021
Principal/Share Amount	$ 83	$ 83
Investments, amortized cost	825	825
Investments, at fair value	$ 972	$ 600
Percent of net assets	0.30%	0.18%	0.30%		0.18%	0.18%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities	Health Care Facilities	Health Care Facilities		Health Care Facilities	Health Care Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
Interest Rate	12.90%	12.04%	12.90%		12.04%	12.04%
Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026		Oct. 05, 2026	Oct. 05, 2026
Investments, at fair value	$ (14)	$ (14)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities	Health Care Facilities	Health Care Facilities		Health Care Facilities	Health Care Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
Interest Rate	12.90%	12.04%	12.90%		12.04%	12.04%
Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026		Oct. 05, 2026	Oct. 05, 2026
Investments, at fair value	$ (17)	$ (16)
Percent of net assets	(0.01%)		(0.01%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities	Health Care Facilities	Health Care Facilities		Health Care Facilities	Health Care Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
Interest Rate	12.90%	12.04%	12.90%		12.04%	12.04%
Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026		Oct. 05, 2026	Oct. 05, 2026
Principal/Share Amount	$ 10,145	$ 10,423
Investments, amortized cost	10,012	10,266
Investments, at fair value	$ 9,902	$ 10,161
Percent of net assets	3.04%	3.06%	3.04%		3.06%	3.06%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BulkMidcoLLCMember	whf:BulkMidcoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Cable & Satellite	Cable & Satellite	Cable & Satellite		Cable & Satellite	Cable & Satellite
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.70%	11.64%	12.70%		11.64%	11.64%
Investment, interest rate, paid in cash	11.70%	10.64%	11.70%		10.64%	10.64%
PIK interest rate	1.00%	1.00%	1.00%		1.00%	1.00%
Acquisition Date	Oct. 28, 2022	Oct. 28, 2022
Maturity Date	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024		Jun. 10, 2024	Jun. 10, 2024
Principal/Share Amount	$ 2,000	$ 2,000
Investments, amortized cost	1,977	1,963
Investments, at fair value	$ 1,944	$ 1,964
Percent of net assets	0.60%	0.59%	0.60%		0.59%	0.59%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:BulkMidcoLLCMember	whf:BulkMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Cable & Satellite	Cable & Satellite	Cable & Satellite		Cable & Satellite	Cable & Satellite
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.70%	11.64%	12.70%		11.64%	11.64%
Investment, interest rate, paid in cash	11.70%		11.70%
PIK interest rate	1.00%		1.00%
Acquisition Date	Oct. 28, 2022	Oct. 28, 2022
Maturity Date	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024		Jun. 10, 2024	Jun. 10, 2024
Principal/Share Amount	$ 19,208	$ 19,228
Investments, amortized cost	19,142	19,126
Investments, at fair value	$ 18,668	$ 18,525
Percent of net assets	5.74%	5.57%	5.74%		5.57%	5.57%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: CX Holdco LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CXHoldcoLLCMember	whf:CXHoldcoLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember		whf:CommonUnitsMember	whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services		IT Consulting And Other Services	IT Consulting And Other Services
Acquisition Date	May 04, 2021	May 04, 2021
Principal/Share Amount	$ 1,068	$ 1,068
Investments, amortized cost	1,116	1,116
Investments, at fair value	$ 1,406	$ 1,558
Percent of net assets	0.43%	0.47%	0.43%		0.47%	0.47%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:CampFacilityServicesHoldingsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services			Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		10.89%			10.89%	10.89%
Acquisition Date		Nov. 16, 2021
Maturity Date		Nov. 16, 2027			Nov. 16, 2027	Nov. 16, 2027
Investments, at fair value		$ (96)
Percent of net assets		(0.03%)			(0.03%)	(0.03%)
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CampFacilityServicesHoldingsLLCMember	whf:CampFacilityServicesHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services	Specialized Consumer Services	Specialized Consumer Services		Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.70%	10.89%	11.70%		10.89%	10.89%
Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Maturity Date	Nov. 16, 2027	Nov. 16, 2027	Nov. 16, 2027		Nov. 16, 2027	Nov. 16, 2027
Principal/Share Amount	$ 11,733	$ 11,798
Investments, amortized cost	11,561	11,606
Investments, at fair value	$ 11,308	$ 11,326
Percent of net assets	3.48%	3.41%	3.48%		3.41%	3.41%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Camp Facility Services Parent, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CampFacilityServicesParentLLCMember	whf:CampFacilityServicesParentLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]		Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services	Specialized Consumer Services	Specialized Consumer Services		Specialized Consumer Services	Specialized Consumer Services
Spread Above Index	10.00%	10.00%	10.00%		10.00%	10.00%
PIK interest rate	10.00%	10.00%	10.00%		10.00%	10.00%
Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Principal/Share Amount	$ 15	$ 15
Investments, amortized cost	840	840
Investments, at fair value	$ 974	$ 927
Percent of net assets	0.30%	0.29%	0.30%		0.29%	0.29%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	true	false	true		false	false
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Revolving Loan, Base Rate Floor 1.00%, Spread Rate plus 5.17%, Rate 12.10%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate		10.99%			10.99%	10.99%
Acquisition Date	Jul. 16, 2021	Jul. 16, 2021
Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026		May 04, 2026	May 04, 2026
Principal/Share Amount	$ 864
Investments, amortized cost	1,179
Investments, at fair value	$ 1,064	$ (161)
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 10.02%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate		10.02%			10.02%	10.02%
Acquisition Date	Jul. 16, 2021	Jul. 16, 2021
Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026		May 04, 2026	May 04, 2026
Principal/Share Amount	$ 2,830	$ 2,837
Investments, amortized cost	3,862	3,863
Investments, at fair value	$ 3,484	$ 3,343
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.99%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate		10.99%			10.99%	10.99%
Acquisition Date	Jun. 28, 2022	Jun. 28, 2022
Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026		May 04, 2026	May 04, 2026
Principal/Share Amount	$ 9,434	$ 9,458
Investments, amortized cost	9,836	9,834
Investments, at fair value	$ 10,120	$ 9,926
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ChaseProductsCoMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
PIK interest rate	12.00%		12.00%
Investments, at fair value	$ 2,589
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan 12.00 PIK
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ChaseProductsCoMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals		Diversified Chemicals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Spread Above Index	12.00%		12.00%
Acquisition Date	Mar. 16, 2023
Maturity Date	Mar. 16, 2028		Mar. 16, 2028
Principal/Share Amount	$ 2,790
Investments, amortized cost	2,790
Investments, at fair value	$ 2,589
Percent of net assets	0.80%		0.80%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ClaridgeProductsandEquipmentLLCMember	whf:ClaridgeProductsandEquipmentLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction Materials	Construction Materials	Construction Materials		Construction Materials	Construction Materials
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	5.88%	8.00%		5.88%	5.88%
Interest Rate	13.09%	12.28%	13.09%		12.28%	12.28%
Investment, interest rate, paid in cash	11.59%		11.59%
PIK interest rate	1.50%		1.50%
Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Maturity Date	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025		Dec. 29, 2025	Dec. 29, 2025
Principal/Share Amount	$ 632	$ 779
Investments, amortized cost	627	772
Investments, at fair value	$ 568	$ 732
Percent of net assets	0.17%	0.22%	0.17%		0.22%	0.22%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ClaridgeProductsandEquipmentLLCMember	whf:ClaridgeProductsandEquipmentLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction Materials	Construction Materials	Construction Materials		Construction Materials	Construction Materials
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	6.50%	8.00%		6.50%	6.50%
Interest Rate	13.39%	11.23%	13.39%		11.23%	11.23%
Investment, interest rate, paid in cash	11.89%		11.89%
PIK interest rate	1.50%		1.50%
Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Maturity Date	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025		Dec. 29, 2025	Dec. 29, 2025
Principal/Share Amount	$ 7,409	$ 7,079
Investments, amortized cost	7,338	6,994
Investments, at fair value	$ 6,907	$ 6,727
Percent of net assets	2.12%	2.01%	2.12%		2.01%	2.01%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: CleanChoice Energy, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CleanChoiceEnergyIncMember	whf:CleanChoiceEnergyIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electric Utilities	Electric Utilities	Electric Utilities		Electric Utilities	Electric Utilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.58%	7.25%	7.58%		7.25%	7.25%
Interest Rate	12.73%	11.33%	12.73%		11.33%	11.33%
Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026		Oct. 12, 2026	Oct. 12, 2026
Principal/Share Amount	$ 15,955	$ 10,500
Investments, amortized cost	15,672	10,341
Investments, at fair value	$ 15,743	$ 10,411
Percent of net assets	4.84%	3.13%	4.84%		3.13%	3.13%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CoastalTelevisionBroadcastingGroupLLCMember	whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadcasting	Broadcasting	Broadcasting		Broadcasting	Broadcasting
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	6.50%	7.00%		6.50%	6.50%
Interest Rate	12.43%	10.80%	12.43%		10.80%	10.80%
Acquisition Date	Dec. 30, 2021	Dec. 30, 2021
Maturity Date	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026		Dec. 30, 2026	Dec. 30, 2026
Investments, at fair value	$ (2)	$ (5)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:CoastalTelevisionBroadcastingGroupLLCMember	whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadcasting	Broadcasting	Broadcasting		Broadcasting	Broadcasting
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	6.50%	7.00%		6.50%	6.50%
Interest Rate	12.43%	10.80%	12.43%		10.80%	10.80%
Acquisition Date	Dec. 30, 2021	Dec. 30, 2021
Maturity Date	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026		Dec. 30, 2026	Dec. 30, 2026
Principal/Share Amount	$ 7,573	$ 8,036
Investments, amortized cost	7,467	7,908
Investments, at fair value	$ 7,417	$ 7,785
Percent of net assets	2.28%	2.34%	2.28%		2.34%	2.34%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Drew Foam Companies Inc First Lien Secured Term Loan Due 11/5/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:DrewFoamCompaniesIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		6.00%			6.00%	6.00%
Spread Above Index		6.75%			6.75%	6.75%
Interest Rate		11.48%			11.48%	11.48%
Acquisition Date		Nov. 09, 2020
Maturity Date		Nov. 05, 2025			Nov. 05, 2025	Nov. 05, 2025
Principal/Share Amount		$ 14,270
Investments, amortized cost		14,105
Investments, at fair value		$ 14,132
Investment, Identifier [Axis]: Drew Foam Companies Inc, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 11/5/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:DrewFoamCompaniesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.00%		6.00%
Interest Rate	12.14%		12.14%
Acquisition Date	Nov. 09, 2020
Maturity Date	Nov. 05, 2025		Nov. 05, 2025
Principal/Share Amount	$ 14,198
Investments, amortized cost	14,064
Investments, at fair value	$ 13,990
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.50%, Rate 10.23%, Due 6/23/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:E-PhoenixAcquisitionCo.Inc.Member
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		5.50%			5.50%	5.50%
Interest Rate		10.23%			10.23%	10.23%
Acquisition Date		Jul. 15, 2021
Maturity Date		Jun. 23, 2027			Jun. 23, 2027	Jun. 23, 2027
Principal/Share Amount		$ 8,865
Investments, amortized cost		8,782
Investments, at fair value		$ 8,686
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.75%, Rate 6.75%, Due 6/23/2027
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:E-PhoenixAcquisitionCo.Inc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services		Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	5.75%		5.75%
Interest Rate	11.14%		11.14%
Acquisition Date	Jul. 15, 2021
Maturity Date	Jun. 23, 2027		Jun. 23, 2027
Principal/Share Amount	$ 8,820
Investments, amortized cost	8,746
Investments, at fair value	$ 8,736
Investment, Identifier [Axis]: Eddy Acquisitions, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EddyAcquisitionsLLCMember	whf:EddyAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]		Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services	Education Services	Education Services		Education Services	Education Services
Spread Above Index	12.00%	12.00%	12.00%		12.00%	12.00%
Interest Rate	12.00%	12.00%	12.00%		12.00%	12.00%
Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Principal/Share Amount	$ 167	$ 167
Investments, amortized cost	167	167
Investments, at fair value	$ 73	$ 83
Percent of net assets	0.02%	0.02%	0.02%		0.02%	0.02%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services	Education Services	Education Services		Education Services	Education Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.20%	11.39%	12.20%		11.39%	11.39%
Investment, interest rate, paid in cash	11.70%	10.89%	11.70%		10.89%	10.89%
PIK interest rate	0.50%	0.50%	0.50%		0.50%	0.50%
Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026		Sep. 15, 2026	Sep. 15, 2026
Investments, at fair value	$ (44)	$ (26)
Percent of net assets	(0.01%)	(0.01%)	(0.01%)		(0.01%)	(0.01%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services	Education Services	Education Services		Education Services	Education Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.20%	11.39%	12.20%		11.39%	11.39%
Investment, interest rate, paid in cash	11.70%	10.89%	11.70%		10.89%	10.89%
PIK interest rate	0.50%	0.50%	0.50%		0.50%	0.50%
Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026		Sep. 15, 2026	Sep. 15, 2026
Investments, at fair value	$ (31)	$ (18)
Percent of net assets	(0.01%)	(0.01%)	(0.01%)		(0.01%)	(0.01%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services	Education Services	Education Services		Education Services	Education Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.20%	11.39%	12.20%		11.39%	11.39%
Investment, interest rate, paid in cash	11.70%	10.89%	11.70%		10.89%	10.89%
PIK interest rate	0.50%	0.50%	0.50%		0.50%	0.50%
Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026		Sep. 15, 2026	Sep. 15, 2026
Principal/Share Amount	$ 12,919	$ 13,053
Investments, amortized cost	12,755	12,861
Investments, at fair value	$ 12,418	$ 12,663
Percent of net assets	3.81%	3.80%	3.81%		3.80%	3.80%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: EducationDynamics, LLC Subordinated Unsecured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember		whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services	Education Services	Education Services		Education Services	Education Services
Spread Above Index	4.00%	4.00%	4.00%		4.00%	4.00%
Interest Rate	4.00%	4.00%	4.00%		4.00%	4.00%
Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Maturity Date	Mar. 15, 2027	Mar. 15, 2027	Mar. 15, 2027		Mar. 15, 2027	Mar. 15, 2027
Principal/Share Amount	$ 167	$ 167
Investments, amortized cost	167	167
Investments, at fair value	$ 167	$ 167
Percent of net assets	0.05%	0.05%	0.05%		0.05%	0.05%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EmpireOfficeIncMember	whf:EmpireOfficeIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies	Office Services & Supplies	Office Services & Supplies		Office Services & Supplies	Office Services & Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	12.00%	11.13%	12.00%		11.13%	11.13%
Acquisition Date	Aug. 17, 2021	Aug. 17, 2021
Maturity Date	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024		Apr. 12, 2024	Apr. 12, 2024
Principal/Share Amount	$ 4,640	$ 4,803
Investments, amortized cost	4,608	4,746
Investments, at fair value	$ 4,640	$ 4,754
Percent of net assets	1.43%	1.43%	1.43%		1.43%	1.43%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:EmpireOfficeIncMember	whf:EmpireOfficeIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies	Office Services & Supplies	Office Services & Supplies		Office Services & Supplies	Office Services & Supplies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	12.00%	11.13%	12.00%		11.13%	11.13%
Acquisition Date	Apr. 12, 2019	Apr. 12, 2019
Maturity Date	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024		Apr. 12, 2024	Apr. 12, 2024
Principal/Share Amount	$ 11,342	$ 11,806
Investments, amortized cost	11,296	11,728
Investments, at fair value	$ 11,342	$ 11,687
Percent of net assets	3.49%	3.52%	3.49%		3.52%	3.52%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: FGI Acquisition Corp. (d/b/a Flexitallic Group SAS) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:FgiAcquisitionCorpMember	whf:FgiAcquisitionCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals	Commodity Chemicals	Commodity Chemicals		Commodity Chemicals	Commodity Chemicals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	7.00%	6.50%		7.00%	7.00%
Interest Rate	11.89%	11.73%	11.89%		11.73%	11.73%
Investment, interest rate, paid in cash		11.23%			11.23%	11.23%
PIK interest rate		0.50%			0.50%	0.50%
Acquisition Date	Oct. 28, 2019	Oct. 28, 2019
Maturity Date	Oct. 29, 2026	Oct. 29, 2026	Oct. 29, 2026		Oct. 29, 2026	Oct. 29, 2026
Principal/Share Amount	$ 16,277	$ 16,350
Investments, amortized cost	15,795	15,794
Investments, at fair value	$ 16,106	$ 15,859
Percent of net assets	4.95%	4.77%	4.95%		4.77%	4.77%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Foodservices Brand Group, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:FoodservicesBrandGroupLlcMember	whf:FoodservicesBrandGroupLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Distributors	Distributors	Distributors		Distributors	Distributors
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	8.00%	8.00%		8.00%	8.00%
Interest Rate	13.29%	12.80%	13.29%		12.80%	12.80%
Acquisition Date	Nov. 22, 2022	Nov. 22, 2022
Maturity Date	Dec. 09, 2025	Dec. 09, 2025	Dec. 09, 2025		Dec. 09, 2025	Dec. 09, 2025
Principal/Share Amount	$ 357	$ 357
Investments, amortized cost	357	357
Investments, at fair value	$ 305	$ 330
Percent of net assets	0.09%	0.10%	0.09%		0.10%	0.10%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Foodservices Brand Group, LLC Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:FoodservicesBrandGroupLlcMember	whf:FoodservicesBrandGroupLlcMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Distributors	Distributors	Distributors		Distributors	Distributors
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.70%	10.92%	11.70%		10.92%	10.92%
Acquisition Date	Nov. 22, 2022	Nov. 22, 2022
Maturity Date	Jan. 08, 2026	Jan. 08, 2026	Jan. 08, 2026		Jan. 08, 2026	Jan. 08, 2026
Principal/Share Amount	$ 5,171	$ 5,171
Investments, amortized cost	5,119	5,108
Investments, at fair value	$ 1,429	$ 3,841
Percent of net assets	0.44%	1.16%	0.44%		1.16%	1.16%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Interest Issuer May Pay In Cash Or Cash And PIK.	1.50%
Investment, Identifier [Axis]: Future Payment Technologies, LP First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:FuturePaymentTechnologiesLPMember	whf:FuturePaymentTechnologiesLPMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services	Data Processing & Outsourced Services	Data Processing & Outsourced Services		Data Processing & Outsourced Services	Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.25%	8.25%	8.25%		8.25%	8.25%
Interest Rate	13.51%	12.37%	13.51%		12.37%	12.37%
Acquisition Date	Dec. 23, 2016	Dec. 23, 2016
Maturity Date	Dec. 05, 2025	Jun. 07, 2024	Dec. 05, 2025		Jun. 07, 2024	Jun. 07, 2024
Principal/Share Amount	$ 22,288	$ 22,911
Investments, amortized cost	22,179	22,776
Investments, at fair value	$ 22,129	$ 22,817
Percent of net assets	6.80%	6.86%	6.80%		6.86%	6.86%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GeoLogicSystemsLtdMember	whf:GeoLogicSystemsLtdMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services		Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	7.25%	1.00%		7.25%	7.25%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.88%	11.38%	11.88%		11.38%	11.38%
Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Maturity Date	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024		Dec. 19, 2024	Dec. 19, 2024
Investments, at fair value	$ (2)	$ (9)
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GeoLogicSystemsLtdMember	whf:GeoLogicSystemsLtdMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services		Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	whf:CanadianDollarOfferedRateMember	Base Rate [Member]		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	5.50%	1.00%		5.50%	5.50%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.88%	11.38%	11.88%		11.38%	11.38%
Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Maturity Date	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024		Dec. 19, 2024	Dec. 19, 2024
Principal/Share Amount	$ 19,688	$ 20,088
Investments, amortized cost	15,145	15,413
Investments, at fair value	$ 14,719	$ 14,545
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:GulfWindsInternationalAcquisitionLlcMember	whf:GulfWindsInternationalAcquisitionLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics		Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.19%	11.43%	12.19%		11.43%	11.43%
Acquisition Date	Dec. 16, 2022	Dec. 16, 2022
Maturity Date	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028		Dec. 18, 2028	Dec. 18, 2028
Investments, at fair value	$ 5
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:GulfWindsInternationalAcquisitionLlcMember	whf:GulfWindsInternationalAcquisitionLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics		Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.19%	11.43%	12.19%		11.43%	11.43%
Acquisition Date	Dec. 16, 2022	Dec. 16, 2022
Maturity Date	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028		Dec. 18, 2028	Dec. 18, 2028
Principal/Share Amount	$ 4,829	$ 4,853
Investments, amortized cost	4,697	4,708
Investments, at fair value	$ 4,731	$ 4,708
Percent of net assets	1.45%	1.42%	1.45%		1.42%	1.42%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:HCSalonHoldingsIncMember	whf:HCSalonHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services	Specialized Consumer Services	Specialized Consumer Services		Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	12.00%	11.23%	12.00%		11.23%	11.23%
Acquisition Date	Sep. 30, 2021	Sep. 30, 2021
Maturity Date	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026		Sep. 30, 2026	Sep. 30, 2026
Investments, at fair value	$ 9	$ 10
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Controlled affiliate company investments	Non-controlled/non-affiliate company investments		Controlled affiliate company investments	Controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:HCSalonHoldingsIncMember	whf:HCSalonHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services	Specialized Consumer Services	Specialized Consumer Services		Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	12.00%	11.23%	12.00%		11.23%	11.23%
Acquisition Date	Sep. 30, 2021	Sep. 30, 2021
Maturity Date	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026		Sep. 30, 2026	Sep. 30, 2026
Principal/Share Amount	$ 11,463	$ 11,521
Investments, amortized cost	11,313	11,348
Investments, at fair value	$ 11,463	$ 11,521
Percent of net assets	3.52%	3.47%	3.52%		3.47%	3.47%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: HRG Management, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:HRGManagementLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Real Estate Operating Companies			Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.25%			6.25%	6.25%
Interest Rate		10.48%			10.48%	10.48%
Acquisition Date		Dec. 23, 2022
Maturity Date		Oct. 19, 2026			Oct. 19, 2026	Oct. 19, 2026
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00% Base Rate Plus, 6.12%, Rate 10.90%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.10%	6.25%		6.10%	6.10%
Interest Rate	11.50%	10.92%	11.50%		10.92%	10.92%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026		Oct. 19, 2026	Oct. 19, 2026
Principal/Share Amount	$ 2,410	$ 1,768
Investments, amortized cost	2,376	1,741
Investments, at fair value	$ 2,346	$ 1,720
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.13%	10.48%	11.13%		10.48%	10.48%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026		Oct. 19, 2026	Oct. 19, 2026
Principal/Share Amount	$ 217
Investments, amortized cost	214
Investments, at fair value	$ 205	$ (11)
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.18%	10.48%	11.18%		10.48%	10.48%
Acquisition Date	Dec. 28, 2021	Dec. 28, 2021
Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026		Oct. 19, 2026	Oct. 19, 2026
Principal/Share Amount	$ 9,604	$ 9,653
Investments, amortized cost	9,477	9,505
Investments, at fair value	$ 9,399	$ 9,412
Investment, Identifier [Axis]: Hollander Intermediate LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:HollanderIntermediateLlcMember	whf:HollanderIntermediateLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings	Home Furnishings	Home Furnishings		Home Furnishings	Home Furnishings
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	2.00%	2.00%	2.00%		2.00%	2.00%
Spread Above Index	8.75%	8.75%	8.75%		8.75%	8.75%
Interest Rate	13.97%	13.19%	13.97%		13.19%	13.19%
Acquisition Date	Sep. 19, 2022	Sep. 19, 2022
Maturity Date	Sep. 21, 2026	Sep. 21, 2026	Sep. 21, 2026		Sep. 21, 2026	Sep. 21, 2026
Principal/Share Amount	$ 4,800	$ 4,861
Investments, amortized cost	4,766	4,821
Investments, at fair value	$ 4,301	$ 4,609
Percent of net assets	1.32%	1.39%	1.32%		1.39%	1.39%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:HonorsHoldingsLLCMember	whf:HonorsHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.91%	7.00%	6.91%		7.00%	7.00%
Interest Rate	12.32%	11.62%	12.32%		11.62%	11.62%
Acquisition Date	Sep. 06, 2019	Sep. 06, 2019
Maturity Date	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024		Sep. 06, 2024	Sep. 06, 2024
Principal/Share Amount	$ 4,649	$ 4,649
Investments, amortized cost	4,625	4,621
Investments, at fair value	$ 4,573	$ 4,557
Percent of net assets	1.41%	1.37%	1.41%		1.37%	1.37%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Additional interest for senior term debt	3.50%
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:HonorsHoldingsLLCMember	whf:HonorsHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.85%	7.12%	8.85%		7.12%	7.12%
Interest Rate	14.24%	11.73%	14.24%		11.73%	11.73%
Acquisition Date	Sep. 06, 2019	Sep. 06, 2019
Maturity Date	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024		Sep. 06, 2024	Sep. 06, 2024
Principal/Share Amount	$ 9,440	$ 9,440
Investments, amortized cost	9,359	9,344
Investments, at fair value	$ 9,286	$ 9,254
Percent of net assets	2.85%	2.78%	2.85%		2.78%	2.78%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Additional interest for senior term debt	3.50%
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	5.75%	5.75%	5.75%		5.75%	5.75%
Interest Rate	11.14%	10.43%	11.14%		10.43%	10.43%
Acquisition Date	Mar. 11, 2022	Mar. 11, 2022
Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026		Dec. 15, 2026	Dec. 15, 2026
Principal/Share Amount	$ 3,070	$ 2,756
Investments, amortized cost	3,027	2,713
Investments, at fair value	$ 2,993	$ 2,699
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.00%	1.00%		6.00%	6.00%
Spread Above Index	5.75%	5.75%	5.75%		5.75%	5.75%
Interest Rate	11.14%	10.43%	11.14%		10.43%	10.43%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026		Dec. 15, 2026	Dec. 15, 2026
Investments, at fair value	$ (7)	$ (3)
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	5.75%	5.75%	5.75%		5.75%	5.75%
Interest Rate	11.14%	10.48%	11.14%		10.48%	10.48%
Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026		Dec. 15, 2026	Dec. 15, 2026
Principal/Share Amount	$ 9,146	$ 9,193
Investments, amortized cost	9,020	9,047
Investments, at fair value	$ 8,918	$ 9,007
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ITSBuyerIncMember	whf:ITSBuyerIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	us-gaap:PrimeRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.00%	10.73%	11.00%		10.73%	10.73%
Acquisition Date	Feb. 17, 2022	Feb. 17, 2022
Maturity Date	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026		Jun. 15, 2026	Jun. 15, 2026
Investments, at fair value	$ 2	$ 3
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ITSBuyerIncMember	whf:ITSBuyerIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.50%	1.00%		6.50%	6.50%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.00%	10.73%	11.00%		10.73%	10.73%
Acquisition Date	Feb. 17, 2022	Feb. 17, 2022
Maturity Date	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026		Jun. 15, 2026	Jun. 15, 2026
Principal/Share Amount	$ 3,559	$ 3,577
Investments, amortized cost	3,513	3,523
Investments, at fair value	$ 3,522	$ 3,542
Investment, Identifier [Axis]: ImageOne Industries, LLC Common A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ImageOneIndustriesLLCMember	whf:ImageOneIndustriesLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonAUnitsMember	us-gaap:CommonClassAMember	whf:CommonAUnitsMember		us-gaap:CommonClassAMember	us-gaap:CommonClassAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services		Diversified Support Services	Diversified Support Services
Acquisition Date	Sep. 20, 2019	Sep. 20, 2019
Principal/Share Amount	$ 232	$ 229
Investments, amortized cost	6	4
Investments, at fair value	$ 21	$ 92
Percent of net assets	0.01%	0.03%	0.01%		0.03%	0.03%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:IndustrialSpecialtyServicesUSALLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Environmental & Facilities Services			Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Base Rate [Member]			Base Rate [Member]	Base Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		5.90%			5.90%	5.90%
Interest Rate		11.41%			11.41%	11.41%
Acquisition Date		Dec. 31, 2021
Maturity Date		Dec. 31, 2026			Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount		$ 674
Investments, amortized cost		663
Investments, at fair value		$ 649
Percent of net assets		0.20%			0.20%	0.20%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:IndustrialSpecialtyServicesUSALLCMember	whf:IndustrialSpecialtyServicesUSALLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.75%	6.25%	6.75%		6.25%	6.25%
Interest Rate	12.14%	10.98%	12.14%		10.98%	10.98%
Acquisition Date	Dec. 31, 2021	Dec. 31, 2021
Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount	$ 11,827	$ 11,887
Investments, amortized cost	11,661	11,697
Investments, at fair value	$ 11,408	$ 11,559
Percent of net assets	3.51%	3.48%	3.51%		3.48%	3.48%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:InspiredBeautyBrandsIncMember	whf:InspiredBeautyBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products	Personal Products	Personal Products		Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.21%	10.78%	12.21%		10.78%	10.78%
Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Maturity Date	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025		Dec. 30, 2025	Dec. 30, 2025
Principal/Share Amount	$ 88	$ 265
Investments, amortized cost	88	262
Investments, at fair value	$ 88	$ 252
Percent of net assets	0.03%	0.08%	0.03%		0.08%	0.08%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:InspiredBeautyBrandsIncMember	whf:InspiredBeautyBrandsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products	Personal Products	Personal Products		Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.32%	11.65%	12.32%		11.65%	11.65%
Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Maturity Date	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025		Dec. 30, 2025	Dec. 30, 2025
Principal/Share Amount	$ 11,205	$ 11,519
Investments, amortized cost	11,093	11,381
Investments, at fair value	$ 11,094	$ 11,159
Percent of net assets	3.41%	3.36%	3.41%		3.36%	3.36%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: JVMC Holdings Corp First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:JVMCHoldingsCorpMember	whf:JVMCHoldingsCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage	Investment Banking & Brokerage	Investment Banking & Brokerage		Investment Banking & Brokerage	Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.71%	10.88%	11.71%		10.88%	10.88%
Acquisition Date	Feb. 28, 2019	Feb. 28, 2019
Maturity Date	Feb. 28, 2024	Feb. 28, 2024	Feb. 28, 2024		Feb. 28, 2024	Feb. 28, 2024
Principal/Share Amount	$ 9,325	$ 11,860
Investments, amortized cost	9,312	11,833
Investments, at fair value	$ 9,325	$ 11,860
Percent of net assets	2.87%	3.57%	2.87%		3.57%	3.57%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:JZCapitalPartnersLtdMember	whf:JZCapitalPartnersLtdMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Asset Management & Custody Banks	Asset Management & Custody Banks	Asset Management & Custody Banks		Asset Management & Custody Banks	Asset Management & Custody Banks
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.22%	11.33%	12.22%		11.33%	11.33%
Acquisition Date	Jan. 26, 2022	Jan. 26, 2022
Maturity Date	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027		Jan. 26, 2027	Jan. 26, 2027
Investments, at fair value	$ 24	$ 9
Percent of net assets	0.01%		0.01%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:JZCapitalPartnersLtdMember	whf:JZCapitalPartnersLtdMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Asset Management & Custody Banks	Asset Management & Custody Banks	Asset Management & Custody Banks		Asset Management & Custody Banks	Asset Management & Custody Banks
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.22%	11.33%	12.22%		11.33%	11.33%
Acquisition Date	Jan. 26, 2022	Jan. 26, 2022
Maturity Date	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027		Jan. 26, 2027	Jan. 26, 2027
Principal/Share Amount	$ 10,286	$ 10,286
Investments, amortized cost	10,139	10,118
Investments, at fair value	$ 10,181	$ 10,135
Percent of net assets	3.13%	3.05%	3.13%		3.05%	3.05%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Delayed Draw Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.75%	1.00%		6.75%	6.75%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.48%	11.14%	11.48%		11.14%	11.14%
Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026		Dec. 29, 2026	Dec. 29, 2026
Principal/Share Amount	$ 1,896	$ 1,909
Investments, amortized cost	1,872	1,882
Investments, at fair value	$ 1,854	$ 1,868
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Revolving Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.75%	1.00%		6.75%	6.75%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.30%	10.54%	11.30%		10.54%	10.54%
Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026		Dec. 29, 2026	Dec. 29, 2026
Principal/Share Amount	$ 179	$ 298
Investments, amortized cost	177	294
Investments, at fair value	$ 168	$ 287
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Term Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.50%	11.15%	11.50%		11.15%	11.15%
Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026		Dec. 29, 2026	Dec. 29, 2026
Principal/Share Amount	$ 11,249	$ 11,306
Investments, amortized cost	11,111	11,147
Investments, at fair value	$ 11,024	$ 11,079
Investment, Identifier [Axis]: Keras Holdings, LLC Shares
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:KerasHoldingsLLCMember	whf:KerasHoldingsLLCMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services		IT Consulting And Other Services	IT Consulting And Other Services
Acquisition Date	Dec. 31, 2020	Dec. 31, 2020
Principal/Share Amount	$ 496	$ 496
Investments, amortized cost	496	496
Investments, at fair value	$ 425	$ 363
Percent of net assets	0.13%	0.11%	0.13%		0.11%	0.11%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Trading Companies And Distributors [Member]		Trading Companies And Distributors [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.25%		6.25%
Interest Rate	11.42%		11.42%
Acquisition Date	Jun. 22, 2021
Maturity Date	Feb. 24, 2026		Feb. 24, 2026
Investments, at fair value	$ 1
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Trading Companies And Distributors [Member]		Trading Companies And Distributors [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.25%		6.25%
Interest Rate	11.42%		11.42%
Acquisition Date	Jun. 22, 2021
Maturity Date	Feb. 24, 2026		Feb. 24, 2026
Principal/Share Amount	$ 9,929
Investments, amortized cost	9,813
Investments, at fair value	$ 9,834
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.25%			6.25%	6.25%
Interest Rate		10.42%			10.42%	10.42%
Acquisition Date		Jun. 22, 2021
Maturity Date		Feb. 24, 2026			Feb. 24, 2026	Feb. 24, 2026
Investments, at fair value		$ (1)
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.25%			6.25%	6.25%
Interest Rate		10.42%			10.42%	10.42%
Acquisition Date		Jun. 22, 2021
Maturity Date		Feb. 24, 2026			Feb. 24, 2026	Feb. 24, 2026
Principal/Share Amount		$ 10,033
Investments, amortized cost		9,895
Investments, at fair value		$ 9,882
Investment, Identifier [Axis]: LMG Holdings, Inc First Lien Secured Term Loan Due 4/30/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LMGHoldingsIncMember	whf:LMGHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electronic Equipment & Instruments		Electronic Equipment & Instruments
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	6.50%	7.00%		6.50%	6.50%
Interest Rate	11.89%	11.23%	11.89%		11.23%	11.23%
Acquisition Date	Jun. 28, 2021	Jun. 28, 2021
Maturity Date	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026		Apr. 30, 2026	Apr. 30, 2026
Principal/Share Amount	$ 13,398	$ 13,466
Investments, amortized cost	13,243	13,284
Investments, at fair value	$ 13,184	$ 13,193
Investment, Identifier [Axis]: LMG Holdings, Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LMGHoldingsIncMember	whf:LMGHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electronic Equipment & Instruments		Electronic Equipment & Instruments
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	6.50%	7.00%		6.50%	6.50%
Interest Rate	11.89%	11.23%	11.89%		11.23%	11.23%
Acquisition Date	Jun. 28, 2021	Jun. 28, 2021
Maturity Date	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026		Apr. 30, 2026	Apr. 30, 2026
Investments, at fair value	$ (4)	$ (6)
Investment, Identifier [Axis]: LSCS Holdings, Inc Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LSCSHoldingsIncMember	whf:LSCSHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Life Sciences Tools & Services	Life Sciences Tools & Services	Life Sciences Tools & Services		Life Sciences Tools & Services	Life Sciences Tools & Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	8.00%	8.00%	8.00%		8.00%	8.00%
Interest Rate	13.19%	12.38%	13.19%		12.38%	12.38%
Acquisition Date	Nov. 23, 2021	Nov. 23, 2021
Maturity Date	Dec. 16, 2029	Dec. 16, 2029	Dec. 16, 2029		Dec. 16, 2029	Dec. 16, 2029
Principal/Share Amount	$ 5,000	$ 5,000
Investments, amortized cost	4,939	4,935
Investments, at fair value	$ 4,827	$ 4,824
Percent of net assets	1.48%	1.45%	1.48%		1.45%	1.45%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LabLogisticsLLCMember	whf:LabLogisticsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services	Health Care Services	Health Care Services		Health Care Services	Health Care Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.25%	7.25%	9.25%		7.25%	7.25%
Interest Rate	14.43%	11.67%	14.43%		11.67%	11.67%
Acquisition Date	Oct. 16, 2019	Oct. 16, 2019
Maturity Date	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023		Sep. 25, 2023	Sep. 25, 2023
Principal/Share Amount	$ 5,104	$ 5,131
Investments, amortized cost	5,102	5,124
Investments, at fair value	$ 5,104	$ 5,131
Percent of net assets	1.57%	1.54%	1.57%		1.54%	1.54%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LabLogisticsLLCMember	whf:LabLogisticsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services	Health Care Services	Health Care Services		Health Care Services	Health Care Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.25%	7.25%	9.25%		7.25%	7.25%
Interest Rate	14.44%	11.67%	14.44%		11.67%	11.67%
Acquisition Date	Oct. 16, 2019	Oct. 16, 2019
Maturity Date	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023		Sep. 25, 2023	Sep. 25, 2023
Principal/Share Amount	$ 5,462	$ 5,487
Investments, amortized cost	5,449	5,446
Investments, at fair value	$ 5,462	$ 5,487
Percent of net assets	1.68%	1.65%	1.68%		1.65%	1.65%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Lenny & Larry's, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:LennyLarrysLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Packaged Foods & Meats			Packaged Foods & Meats	Packaged Foods & Meats
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		8.33%			8.33%	8.33%
Interest Rate		12.65%			12.65%	12.65%
Investment, interest rate, paid in cash		10.94%			10.94%	10.94%
PIK interest rate		1.71%			1.71%	1.71%
Acquisition Date		May 15, 2018
Maturity Date		May 15, 2023			May 15, 2023	May 15, 2023
Principal/Share Amount		$ 11,214
Investments, amortized cost		11,198
Investments, at fair value		$ 10,941
Percent of net assets		3.30%			3.30%	3.30%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LeviathanIntermediateHoldcoLlcMember	whf:LeviathanIntermediateHoldcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.50%	1.00%	1.50%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.89%	12.54%	12.89%		12.54%	12.54%
Acquisition Date	Dec. 27, 2022	Dec. 27, 2022
Maturity Date	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027		Dec. 27, 2027	Dec. 27, 2027
Principal/Share Amount	$ 76	$ 78
Investments, amortized cost	74	76
Investments, at fair value	$ 81	$ 75
Percent of net assets	0.02%	0.02%	0.02%		0.02%	0.02%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LeviathanIntermediateHoldcoLlcMember	whf:LeviathanIntermediateHoldcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.50%	1.00%	1.50%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.89%	12.54%	12.89%		12.54%	12.54%
Acquisition Date	Dec. 27, 2022	Dec. 27, 2022
Maturity Date	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027		Dec. 27, 2027	Dec. 27, 2027
Principal/Share Amount	$ 10,398	$ 10,454
Investments, amortized cost	10,118	10,141
Investments, at fair value	$ 10,242	$ 10,138
Percent of net assets	3.15%	3.05%	3.15%		3.05%	3.05%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan A
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LiftBrandsIncMember	whf:LiftBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember		whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.70%	11.88%	12.70%		11.88%	11.88%
Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Maturity Date	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025		Jun. 29, 2025	Jun. 29, 2025
Principal/Share Amount	$ 5,546	$ 5,574
Investments, amortized cost	5,512	5,531
Investments, at fair value	$ 5,517	$ 5,520
Percent of net assets	1.70%	1.66%	1.70%		1.66%	1.66%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan B
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LiftBrandsIncMember	whf:LiftBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember		whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Spread Above Index	9.50%	9.50%	9.50%		9.50%	9.50%
Interest Rate		9.50%			9.50%	9.50%
Investment, interest rate, paid in cash		0.00%			0.00%	0.00%
PIK interest rate	9.50%	9.50%	9.50%		9.50%	9.50%
Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Maturity Date	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025		Jun. 29, 2025	Jun. 29, 2025
Principal/Share Amount	$ 1,383	$ 1,330
Investments, amortized cost	1,371	1,316
Investments, at fair value	$ 1,314	$ 1,266
Percent of net assets	0.40%	0.38%	0.40%		0.38%	0.38%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Luxury Brand Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:LuxuryBrandHoldingsIncMember	whf:LuxuryBrandHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.65%	10.91%	11.65%		10.91%	10.91%
Acquisition Date	Dec. 04, 2020	Dec. 04, 2020
Maturity Date	Jun. 04, 2026	Jun. 04, 2026	Jun. 04, 2026		Jun. 04, 2026	Jun. 04, 2026
Principal/Share Amount	$ 5,280	$ 5,880
Investments, amortized cost	5,224	5,807
Investments, at fair value	$ 5,266	$ 5,880
Percent of net assets	1.62%	1.77%	1.62%		1.77%	1.77%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	8.00%		8.00%
Interest Rate	13.34%		13.34%
Acquisition Date	Apr. 07, 2023
Maturity Date	Apr. 09, 2029		Apr. 09, 2029
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	8.00%		8.00%
Interest Rate	13.34%		13.34%
Acquisition Date	Apr. 07, 2023
Maturity Date	Apr. 09, 2029		Apr. 09, 2029
Principal/Share Amount	$ 4,750
Investments, amortized cost	4,613
Investments, at fair value	$ 4,613
Percent of net assets	1.42%		1.42%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: MBS Highway, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MbsHighwayLlcMember	whf:MbsHighwayLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software		Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.63%	11.92%	12.63%		11.92%	11.92%
Acquisition Date	Oct. 13, 2022	Oct. 13, 2022
Maturity Date	Oct. 13, 2027	Oct. 13, 2027	Oct. 13, 2027		Oct. 13, 2027	Oct. 13, 2027
Principal/Share Amount	$ 9,429	$ 9,476
Investments, amortized cost	9,227	9,250
Investments, at fair value	$ 9,217	$ 9,250
Percent of net assets	2.83%	2.78%	2.83%		2.78%	2.78%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.00%			6.00%	6.00%
Interest Rate		10.38%			10.38%	10.38%
Acquisition Date		Jan. 21, 2021
Maturity Date		Dec. 31, 2026			Dec. 31, 2026	Dec. 31, 2026
Investments, at fair value		$ 22
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.00%			6.00%	6.00%
Interest Rate		10.38%			10.38%	10.38%
Acquisition Date		Jan. 21, 2021
Maturity Date		Dec. 31, 2026			Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount		$ 13,353
Investments, amortized cost		13,162
Investments, at fair value		$ 13,353
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.00%		6.00%
Interest Rate	11.20%		11.20%
Acquisition Date	Jan. 21, 2021
Maturity Date	Dec. 31, 2026		Dec. 31, 2026
Investments, at fair value	$ 19
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.00%		6.00%
Interest Rate	11.20%		11.20%
Acquisition Date	Jan. 21, 2021
Maturity Date	Dec. 31, 2026		Dec. 31, 2026
Principal/Share Amount	$ 13,285
Investments, amortized cost	13,118
Investments, at fair value	$ 13,285
Investment, Identifier [Axis]: MGT Merger Target, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.94%		11.94%
Acquisition Date	May 10, 2023
Maturity Date	Apr. 10, 2029		Apr. 10, 2029
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.94%		11.94%
Acquisition Date	May 10, 2023
Maturity Date	Apr. 10, 2028		Apr. 10, 2028
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.94%		11.94%
Acquisition Date	May 10, 2023
Maturity Date	Apr. 10, 2029		Apr. 10, 2029
Principal/Share Amount	$ 6,263
Investments, amortized cost	6,084
Investments, at fair value	$ 6,085
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MSIInformationServicesIncMember	whf:MSIInformationServicesIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media & Services	Interactive Media & Services	Interactive Media & Services		Interactive Media & Services	Interactive Media & Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.95%	7.75%	6.95%		7.75%	7.75%
Interest Rate	14.60%	12.17%	14.60%		12.17%	12.17%
Acquisition Date	Apr. 25, 2022	Apr. 25, 2022
Maturity Date	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026		Apr. 24, 2026	Apr. 24, 2026
Principal/Share Amount	$ 375
Investments, amortized cost	370
Investments, at fair value	$ 332	$ (9)
Percent of net assets	0.10%		0.10%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MSIInformationServicesIncMember	whf:MSIInformationServicesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media & Services	Interactive Media & Services	Interactive Media & Services		Interactive Media & Services	Interactive Media & Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
Interest Rate	12.95%	12.17%	12.95%		12.17%	12.17%
Acquisition Date	Apr. 25, 2022	Apr. 25, 2022
Maturity Date	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026		Apr. 24, 2026	Apr. 24, 2026
Principal/Share Amount	$ 7,531	$ 7,751
Investments, amortized cost	7,425	7,623
Investments, at fair value	$ 7,157	$ 7,554
Percent of net assets	2.20%	2.27%	2.20%		2.27%	2.27%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Manchester Acquisition Sub LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ManchesterAcquisitionSubLLCMember	whf:ManchesterAcquisitionSubLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals	Diversified Chemicals	Diversified Chemicals		Diversified Chemicals	Diversified Chemicals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.75%	0.75%	0.75%		0.75%	0.75%
Spread Above Index	5.75%	5.75%	5.75%		5.75%	5.75%
Interest Rate	11.18%	10.30%	11.18%		10.30%	10.30%
Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Maturity Date	Dec. 01, 2026	Nov. 16, 2026	Dec. 01, 2026		Nov. 16, 2026	Nov. 16, 2026
Principal/Share Amount	$ 7,880	$ 7,920
Investments, amortized cost	7,582	7,578
Investments, at fair value	$ 7,102	$ 6,731
Percent of net assets	2.18%	2.03%	2.18%		2.03%	2.03%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Internet & Direct Marketing Retail		Internet & Direct Marketing Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.98%		11.98%
Acquisition Date	Jul. 19, 2019
Maturity Date	Jul. 01, 2025		Jul. 01, 2025
Investments, at fair value	$ 2
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Internet & Direct Marketing Retail		Internet & Direct Marketing Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.98%		11.98%
Acquisition Date	Jul. 19, 2019
Maturity Date	Jul. 01, 2025		Jul. 01, 2025
Principal/Share Amount	$ 18,981
Investments, amortized cost	18,833
Investments, at fair value	$ 18,898
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		6.50%			6.50%	6.50%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		11.23%			11.23%	11.23%
Acquisition Date		Jul. 19, 2019
Maturity Date		Jul. 01, 2025			Jul. 01, 2025	Jul. 01, 2025
Investments, at fair value		$ 8
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		6.50%			6.50%	6.50%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		11.23%			11.23%	11.23%
Acquisition Date		Jul. 19, 2019
Maturity Date		Jul. 01, 2025			Jul. 01, 2025	Jul. 01, 2025
Principal/Share Amount		$ 19,105
Investments, amortized cost		18,920
Investments, at fair value		$ 19,105
Investment, Identifier [Axis]: Max Solutions Inc. Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging	Paper Packaging	Paper Packaging		Paper Packaging	Paper Packaging
Acquisition Date	Sep. 29, 2022	Sep. 29, 2022
Principal/Share Amount	$ 4	$ 4
Investments, amortized cost	400	400
Investments, at fair value	$ 123	$ 283
Percent of net assets	0.04%	0.09%	0.04%		0.09%	0.09%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.66%	6.50%	7.66%		6.50%	6.50%
Interest Rate	13.05%	11.23%	13.05%		11.23%	11.23%
Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028		Sep. 29, 2028	Sep. 29, 2028
Investments, at fair value	$ (21)	$ (26)
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread CDOR plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:CanadianDollarOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.66%	6.50%	7.66%		6.50%	6.50%
Interest Rate	13.05%	11.23%	13.05%		11.23%	11.23%
Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028		Sep. 29, 2028	Sep. 29, 2028
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		11.23%			11.23%	11.23%
Acquisition Date		Oct. 07, 2022
Maturity Date		Sep. 29, 2028			Sep. 29, 2028	Sep. 29, 2028
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.66%	6.50%	7.66%		6.50%	6.50%
Interest Rate	13.05%	11.23%	13.05%		11.23%	11.23%
Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028		Sep. 29, 2028	Sep. 29, 2028
Principal/Share Amount	$ 6,622	$ 8,244
Investments, amortized cost	6,506	8,085
Investments, at fair value	$ 6,502	$ 8,085
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxorAcquisitionInc.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Drug Retail		Drug Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.93%		11.93%
Acquisition Date	Apr. 11, 2023
Maturity Date	Mar. 01, 2029		Mar. 01, 2029
Principal/Share Amount	$ 194
Investments, amortized cost	188
Investments, at fair value	$ 189
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxorAcquisitionInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Drug Retail		Drug Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	12.16%		12.16%
Acquisition Date	Apr. 11, 2023
Maturity Date	Mar. 01, 2029		Mar. 01, 2029
Principal/Share Amount	$ 5,078
Investments, amortized cost	4,934
Investments, at fair value	$ 4,935
Investment, Identifier [Axis]: Merriman Holdings LP (d/b/a Escalent, Inc.) Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MerrimanHoldingsLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Acquisition Date	Apr. 07, 2023
Principal/Share Amount	$ 277
Investments, amortized cost	333
Investments, at fair value	$ 333
Percent of net assets	0.10%		0.10%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	false		false
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 10.81%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals [Member]		Pharmaceuticals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.34%	10.81%	11.34%		10.81%	10.81%
Acquisition Date	Oct. 01, 2022	Oct. 01, 2022
Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027		Nov. 01, 2027	Nov. 01, 2027
Principal/Share Amount	$ 887	$ 892
Investments, amortized cost	873	878
Investments, at fair value	$ 871	$ 876
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.81%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals [Member]		Pharmaceuticals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.03%	10.81%	11.03%		10.81%	10.81%
Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027		Nov. 01, 2027	Nov. 01, 2027
Principal/Share Amount	$ 754
Investments, amortized cost	742
Investments, at fair value	$ 737	$ (3)
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread E Plus 6.00%, Rate 8.17%, Due 11/20/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals [Member]		Pharmaceuticals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember		whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	9.21%	8.17%	9.21%		8.17%	8.17%
Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027		Nov. 01, 2027	Nov. 01, 2027
Principal/Share Amount	$ 12,225	$ 12,287
Investments, amortized cost	13,597	13,643
Investments, at fair value	$ 13,054	$ 12,876
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.62%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals [Member]		Pharmaceuticals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.27%	10.62%	11.27%		10.62%	10.62%
Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027		Nov. 01, 2027	Nov. 01, 2027
Principal/Share Amount	$ 976	$ 981
Investments, amortized cost	961	966
Investments, at fair value	$ 959	$ 963
Investment, Identifier [Axis]: Motivational CIV, LLC Class B Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalCIVLLCMember	whf:MotivationalCIVLLCMember
Investment, Type [Extensible Enumeration]	whf:ClassBUnitsMember	whf:ClassBUnitsMember	whf:ClassBUnitsMember		whf:ClassBUnitsMember	whf:ClassBUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics		Air Freight & Logistics	Air Freight & Logistics
Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Principal/Share Amount	$ 1,250	$ 1,250
Investments, amortized cost	1,250	1,250
Investments, at fair value	$ 424	$ 517
Percent of net assets	0.13%	0.16%	0.13%		0.16%	0.16%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalMarketingLLCMember	whf:MotivationalMarketingLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics		Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	5.56%	6.25%		5.56%	5.56%
Interest Rate	11.48%	11.21%	11.48%		11.21%	11.21%
Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Maturity Date	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026		Jul. 12, 2026	Jul. 12, 2026
Principal/Share Amount	$ 1,182	$ 158
Investments, amortized cost	1,167	155
Investments, at fair value	$ 1,123	$ 133
Percent of net assets	0.35%	0.04%	0.35%		0.04%	0.04%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalMarketingLLCMember	whf:MotivationalMarketingLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics		Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.43%	10.59%	11.43%		10.59%	10.59%
Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Maturity Date	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026		Jul. 12, 2026	Jul. 12, 2026
Principal/Share Amount	$ 11,091	$ 11,113
Investments, amortized cost	10,957	10,956
Investments, at fair value	$ 10,542	$ 10,749
Percent of net assets	3.24%	3.23%	3.24%		3.23%	3.23%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: NNA Services, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:NNAServicesLLCMember	whf:NNAServicesLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services		Diversified Support Services	Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	12.14%	11.48%	12.14%		11.48%	11.48%
Acquisition Date	Aug. 27, 2021	Aug. 27, 2021
Maturity Date	Aug. 27, 2026	Aug. 27, 2026	Aug. 27, 2026		Aug. 27, 2026	Aug. 27, 2026
Principal/Share Amount	$ 9,635	$ 11,302
Investments, amortized cost	9,559	11,199
Investments, at fair value	$ 9,262	$ 10,833
Percent of net assets	2.85%	3.26%	2.85%		3.26%	3.26%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NPAVLessorCorp.Member	whf:NPAVLessorCorp.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	us-gaap:RealEstateSectorMember		us-gaap:RealEstateSectorMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.50%	6.00%		6.50%	6.50%
Interest Rate	11.69%	10.92%	11.69%		10.92%	10.92%
Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Maturity Date	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027		Jan. 21, 2027	Jan. 21, 2027
Principal/Share Amount	$ 508	$ 290
Investments, amortized cost	500	285
Investments, at fair value	$ 438	$ 247
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NPAVLessorCorp.Member	whf:NPAVLessorCorp.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	us-gaap:RealEstateSectorMember		us-gaap:RealEstateSectorMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.50%	6.00%		6.50%	6.50%
Interest Rate	11.70%	10.92%	11.70%		10.92%	10.92%
Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Maturity Date	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027		Jan. 21, 2027	Jan. 21, 2027
Principal/Share Amount	$ 7,946	$ 8,924
Investments, amortized cost	7,832	8,778
Investments, at fair value	$ 7,146	$ 8,301
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:NavigaIncMember	whf:NavigaIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software		Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	6.63%	7.00%		6.63%	6.63%
Interest Rate	12.34%	12.19%	12.34%		12.19%	12.19%
Acquisition Date	Jun. 14, 2019	Oct. 06, 2022
Maturity Date	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023		Dec. 29, 2023	Dec. 29, 2023
Principal/Share Amount	$ 267	$ 267
Investments, amortized cost	267	267
Investments, at fair value	$ 261	$ 258
Percent of net assets	0.08%	0.08%	0.08%		0.08%	0.08%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:NavigaIncMember	whf:NavigaIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software		Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.00%	7.00%	7.00%		7.00%	7.00%
Interest Rate	12.34%	11.68%	12.34%		11.68%	11.68%
Acquisition Date	Jun. 14, 2019	Oct. 06, 2022
Maturity Date	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023		Dec. 29, 2023	Dec. 29, 2023
Principal/Share Amount	$ 3,164	$ 3,180
Investments, amortized cost	3,163	3,177
Investments, at fair value	$ 3,101	$ 3,084
Percent of net assets	0.95%	0.93%	0.95%		0.93%	0.93%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: New American Crafts Holdings, LLC Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments		Controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:NewAmericanCraftsHoldingsLlcClassaUnitsMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services & Supplies		Office Services & Supplies
Acquisition Date	Mar. 16, 2023
Principal/Share Amount	$ 1
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	false		false
Investment, Identifier [Axis]: PFB Holdco, Inc Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	Preferred Units [Member]	whf:ClassAUnitsMember		Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products		Building Products	Building Products
Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Principal/Share Amount			$ 1		$ 1
Investments, amortized cost	$ 423	$ 423
Investments, at fair value	$ 1,143	$ 786
Percent of net assets	0.35%	0.24%	0.35%		0.24%	0.24%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products		Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.13%	10.52%	11.13%		10.52%	10.52%
Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Maturity Date	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026		Dec. 17, 2026	Dec. 17, 2026
Principal/Share Amount			$ 8,313		$ 8,935
Investments, amortized cost	$ 6,414	$ 6,879
Investments, at fair value	$ 6,277	$ 6,504
Percent of net assets	1.92%	1.95%	1.92%		1.95%	1.95%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan SOFR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.00%		6.00%
Interest Rate	11.23%		11.23%
Acquisition Date	Dec. 17, 2021
Maturity Date	Dec. 17, 2026		Dec. 17, 2026
Principal/Share Amount	$ 2,025
Investments, amortized cost	1,997
Investments, at fair value	$ 2,013
Percent of net assets	0.62%		0.62%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products		Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.13%	10.52%	11.13%		10.52%	10.52%
Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Maturity Date	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026		Dec. 17, 2026	Dec. 17, 2026
Investments, at fair value	$ 13	$ 2
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan LIBOR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Building Products			Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.00%			6.00%	6.00%
Interest Rate		10.17%			10.17%	10.17%
Acquisition Date		Dec. 17, 2021
Maturity Date		Dec. 17, 2026			Dec. 17, 2026	Dec. 17, 2026
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan SOFR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.00%		6.00%
Interest Rate	11.23%		11.23%
Acquisition Date	Dec. 17, 2021
Maturity Date	Dec. 17, 2026		Dec. 17, 2026
Investments, at fair value	$ 2
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Term Loan LIBOR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Building Products			Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.00%			6.00%	6.00%
Interest Rate		10.17%			10.17%	10.17%
Acquisition Date		Dec. 17, 2021
Maturity Date		Dec. 17, 2026			Dec. 17, 2026	Dec. 17, 2026
Principal/Share Amount		$ 2,176
Investments, amortized cost		2,141
Investments, at fair value		$ 2,144
Percent of net assets		0.65%			0.65%	0.65%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PGDentalNewJerseyParentLLCMember	whf:PGDentalNewJerseyParentLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services	Health Care Services	Health Care Services		Health Care Services	Health Care Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	whf:LondonInterbankOfferedRateMember	Base Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.00%	8.25%	9.00%		8.25%	8.25%
Interest Rate	15.85%	12.57%	15.85%		12.57%	12.57%
Investment, interest rate, paid in cash	14.60%	11.82%	14.60%		11.82%	11.82%
PIK interest rate	1.25%	0.75%	1.25%		0.75%	0.75%
Acquisition Date	Nov. 25, 2020	Nov. 25, 2020
Maturity Date	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025		Nov. 25, 2025	Nov. 25, 2025
Principal/Share Amount	$ 704	$ 352
Investments, amortized cost	696	347
Investments, at fair value	$ 662	$ 300
Percent of net assets	0.20%	0.09%	0.20%		0.09%	0.09%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PGDentalNewJerseyParentLLCMember	whf:PGDentalNewJerseyParentLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services	Health Care Services	Health Care Services		Health Care Services	Health Care Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.50%	9.00%	9.50%		9.00%	9.00%
Interest Rate	14.69%	13.32%	14.69%		13.32%	13.32%
Investment, interest rate, paid in cash	13.44%	12.57%	13.44%		12.57%	12.57%
PIK interest rate	1.25%	0.75%	1.25%		0.75%	0.75%
Acquisition Date	Nov. 25, 2020	Nov. 25, 2020
Maturity Date	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025		Nov. 25, 2025	Nov. 25, 2025
Principal/Share Amount	$ 13,276	$ 13,495
Investments, amortized cost	13,137	13,324
Investments, at fair value	$ 12,483	$ 12,415
Percent of net assets	3.84%	3.74%	3.84%		3.74%	3.74%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Patagonia Hold co Llc First Lien Secured Term Loans
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PatagoniaHoldcoLLCMember	whf:PatagoniaHoldcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Alternative Carriers	Alternative Carriers	Alternative Carriers		Alternative Carriers	Alternative Carriers
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	5.75%	5.75%	5.75%		5.75%	5.75%
Interest Rate	10.79%	9.96%	10.79%		9.96%	9.96%
Acquisition Date	Aug. 05, 2022	Aug. 05, 2022
Maturity Date	Aug. 01, 2029	Aug. 01, 2029	Aug. 01, 2029		Aug. 01, 2029	Aug. 01, 2029
Principal/Share Amount	$ 14,515	$ 14,588
Investments, amortized cost	12,230	12,105
Investments, at fair value	$ 12,414	$ 12,068
Percent of net assets	3.82%	3.63%	3.82%		3.63%	3.63%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.97%		11.97%
Acquisition Date	Mar. 17, 2023
Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Investments, at fair value	$ (4)
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Floor	1.00%		1.00%
Spread Above Index	6.75%		6.75%
Interest Rate	12.11%		12.11%
Acquisition Date	Mar. 17, 2023
Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Principal/Share Amount	$ 251
Investments, amortized cost	244
Investments, at fair value	$ 247
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.97%		11.97%
Acquisition Date	Mar. 17, 2023
Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Principal/Share Amount	$ 4,035
Investments, amortized cost	3,924
Investments, at fair value	$ 3,953
Investment, Identifier [Axis]: Pennsylvania Machine Works., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 11.09%, Due 3/8/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PennsylvaniaMachineWorksLLCMember	whf:PennsylvaniaMachineWorksLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.50%	11.09%	11.50%		11.09%	11.09%
Acquisition Date	Mar. 25, 2022	Mar. 25, 2022
Maturity Date	Mar. 08, 2027	Mar. 08, 2027	Mar. 08, 2027		Mar. 08, 2027	Mar. 08, 2027
Principal/Share Amount	$ 6,594	$ 6,907
Investments, amortized cost	6,521	6,821
Investments, at fair value	$ 6,594	$ 6,801
Investment, Identifier [Axis]: PlayMonster LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		PlayMonster LLC [Member].
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember			whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: Playmonster Group Equity Inc Common Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Identifier [Axis]: Playmonster Group Equity Inc Preferred Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Identifier [Axis]: Playmonster Group Equity, Inc Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments	Non-controlled affiliate company investments		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Principal/Share Amount	$ 72	$ 72
Investments, amortized cost	$ 460	$ 460
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Playmonster Group Equity, Inc. Preferred Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments	Non-controlled affiliate company investments		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Spread Above Index	14.00%	14.00%	14.00%		14.00%	14.00%
PIK interest rate	14.00%	14.00%	14.00%		14.00%	14.00%
Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Principal/Share Amount	$ 36	$ 36
Investments, amortized cost	$ 3,600	$ 3,600
Percent of net assets		0.01%			0.01%	0.01%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember		whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember
Investments, at fair value	$ 2,396	$ 2,977
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.00%	9.00%	9.00%		9.00%	9.00%
PIK interest rate	14.22%	13.36%	14.22%		13.36%	13.36%
Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Maturity Date	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026		Jun. 08, 2026	Jun. 08, 2026
Principal/Share Amount	$ 3,930	$ 3,662
Investments, amortized cost	3,661	3,662
Investments, at fair value	$ 2,396	$ 2,977
Percent of net assets	0.74%	0.90%	0.74%		0.90%	0.90%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Playmonster Group LLC Priority First Lien Secured Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember		whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember
Investments, at fair value	$ 1,030	$ 176
Investment, Identifier [Axis]: Playmonster Group LLC, Priority First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	us-gaap:InvestmentAffiliatedIssuerMember	Non-controlled affiliate company investments	us-gaap:InvestmentAffiliatedIssuerMember		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products		Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
PIK interest rate	12.02%	11.47%	12.02%		11.47%	11.47%
Acquisition Date	Dec. 09, 2022	Dec. 09, 2022
Maturity Date	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026		Jun. 08, 2026	Jun. 08, 2026
Principal/Share Amount	$ 1,073	$ 184
Investments, amortized cost	1,045	176
Investments, at fair value	$ 1,030	$ 176
Percent of net assets	0.32%	0.05%	0.32%		0.05%	0.05%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Potpourri Group, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PotpourriGroupIncMember	whf:PotpourriGroupIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.50%	1.50%	1.50%		1.50%	1.50%
Spread Above Index	8.25%	8.25%	8.25%		8.25%	8.25%
Interest Rate	13.50%	12.47%	13.50%		12.47%	12.47%
Acquisition Date	Jul. 03, 2019	Jul. 03, 2019
Maturity Date	Jul. 03, 2024	Jul. 03, 2024	Jul. 03, 2024		Jul. 03, 2024	Jul. 03, 2024
Principal/Share Amount	$ 13,993	$ 14,187
Investments, amortized cost	13,930	14,091
Investments, at fair value	$ 13,993	$ 14,187
Percent of net assets	4.30%	4.27%	4.30%		4.27%	4.27%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Poultry Holdings LLC (HPP), First Lien Secured Term Loan, Floor 1.00%, Spread L plus 7.25%, Rate 8.25% (6.75% Cash + 1.50% PIK), Due 6/28/225
Schedule of Investments [Line Items]
Interest Rate	11.70%		11.70%
Investment, interest rate, paid in cash	10.95%		10.95%
PIK interest rate	0.75%		0.75%
Investment, Identifier [Axis]: Poultry Holdings LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 7.25%, Rate 11.67% (10.17% Cash + 1.50% PIK), Due 6/28/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PoultryHoldingsLLCMember	whf:PoultryHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Packaged Foods & Meats		Packaged Foods & Meats
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.25%	7.25%	7.25%		7.25%	7.25%
Interest Rate		11.67%			11.67%	11.67%
Investment, interest rate, paid in cash		10.17%			10.17%	10.17%
PIK interest rate		1.50%			1.50%	1.50%
Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Maturity Date	Jun. 28, 2025	Jun. 28, 2025	Jun. 28, 2025		Jun. 28, 2025	Jun. 28, 2025
Principal/Share Amount	$ 7,108	$ 7,162
Investments, amortized cost	7,060	7,101
Investments, at fair value	$ 7,002	$ 7,011
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment	Heavy Electrical Equipment	Heavy Electrical Equipment		Heavy Electrical Equipment	Heavy Electrical Equipment
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.64%	10.98%	11.64%		10.98%	10.98%
Acquisition Date	Jul. 11, 2022	Jul. 11, 2022
Maturity Date	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026		Jun. 25, 2026	Jun. 25, 2026
Principal/Share Amount	$ 2,090
Investments, amortized cost	2,053
Investments, at fair value	$ 2,056	$ (34)
Percent of net assets	0.63%	(0.01%)	0.63%		(0.01%)	(0.01%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Revolver Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment	Heavy Electrical Equipment	Heavy Electrical Equipment		Heavy Electrical Equipment	Heavy Electrical Equipment
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	5.96%	6.25%		5.96%	5.96%
Interest Rate	11.58%	11.36%	11.58%		11.36%	11.36%
Acquisition Date	Jun. 25, 2021	Jun. 25, 2021
Maturity Date	Jun. 25, 2024	Jun. 25, 2024	Jun. 25, 2024		Jun. 25, 2024	Jun. 25, 2024
Principal/Share Amount	$ 1,045	$ 836
Investments, amortized cost	1,039	828
Investments, at fair value	$ 1,041	$ 780
Percent of net assets	0.32%	0.23%	0.32%		0.23%	0.23%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment	Heavy Electrical Equipment	Heavy Electrical Equipment		Heavy Electrical Equipment	Heavy Electrical Equipment
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.64%	10.98%	11.64%		10.98%	10.98%
Acquisition Date	Jun. 25, 2021	Jun. 25, 2021
Maturity Date	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026		Jun. 25, 2026	Jun. 25, 2026
Principal/Share Amount	$ 13,572	$ 14,130
Investments, amortized cost	13,400	13,922
Investments, at fair value	$ 13,352	$ 13,774
Percent of net assets	4.10%	4.14%	4.10%		4.14%	4.14%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Pressurized Holdings, LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Pressurized Holdings, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember		whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals		Diversified Chemicals
Acquisition Date	Mar. 16, 2023
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	false		false
Investment, Identifier [Axis]: Pressurized Holdings, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Pressurized Holdings, LLC [Member]
Investment, Type [Extensible Enumeration]	Preferred Units [Member]		Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals		Diversified Chemicals
PIK interest rate	14.00%		14.00%
Acquisition Date	Mar. 16, 2023
Investments, amortized cost	$ 4,537
Investments, at fair value	$ 247
Percent of net assets	0.08%		0.08%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	true		true
Investment, Identifier [Axis]: Project Castle, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:ProjectCastleIncMember	whf:ProjectCastleIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery	Industrial Machinery	Industrial Machinery		Industrial Machinery	Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	5.50%	5.50%	5.50%		5.50%	5.50%
Interest Rate	10.41%	10.08%	10.41%		10.08%	10.08%
Acquisition Date	Jun. 09, 2022	Jun. 09, 2022
Maturity Date	Jun. 01, 2029	Jun. 01, 2029	Jun. 01, 2029		Jun. 01, 2029	Jun. 01, 2029
Principal/Share Amount	$ 8,313	$ 8,355
Investments, amortized cost	7,560	7,535
Investments, at fair value	$ 6,899	$ 7,269
Percent of net assets	2.12%	2.19%	2.12%		2.19%	2.19%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services		Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	12.64%	10.73%	12.64%		10.73%	10.73%
Investment, interest rate, paid in cash	12.14%		12.14%
PIK interest rate	0.50%		0.50%
Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Maturity Date	Jun. 30, 2025	Dec. 28, 2024	Jun. 30, 2025		Dec. 28, 2024	Dec. 28, 2024
Principal/Share Amount	$ 468	$ 468
Investments, amortized cost	465	464
Investments, at fair value	$ 454	$ 431
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services		Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	12.64%	10.73%	12.64%		10.73%	10.73%
Investment, interest rate, paid in cash	12.14%		12.14%
PIK interest rate	0.50%		0.50%
Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Maturity Date	Jun. 30, 2025	Dec. 28, 2024	Jun. 30, 2025		Dec. 28, 2024	Dec. 28, 2024
Principal/Share Amount	$ 11,769	$ 11,805
Investments, amortized cost	11,708	11,728
Investments, at fair value	$ 11,567	$ 11,298
Investment, Identifier [Axis]: Quest Events, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]		Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services		Diversified Support Services	Diversified Support Services
Acquisition Date	Dec. 28, 2018	Dec. 28, 2018
Maturity Date	Dec. 08, 2025	Dec. 08, 2025	Dec. 08, 2025		Dec. 08, 2025	Dec. 08, 2025
Principal/Share Amount	$ 350	$ 347
Investments, amortized cost	350	347
Investments, at fair value	$ 200	$ 110
Percent of net assets	0.06%	0.03%	0.06%		0.03%	0.03%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.64%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.53%	10.65%	11.53%		10.65%	10.65%
Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount	$ 2,991	$ 3,007
Investments, amortized cost	2,954	2,963
Investments, at fair value	$ 2,962	$ 2,947
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.57%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.55%	10.60%	11.55%		10.60%	10.60%
Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount	$ 533	$ 533
Investments, amortized cost	527	526
Investments, at fair value	$ 530	$ 517
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.98%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	11.64%	10.98%	11.64%		10.98%	10.98%
Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Principal/Share Amount	$ 11,093	$ 11,150
Investments, amortized cost	10,962	11,000
Investments, at fair value	$ 10,983	$ 10,929
Investment, Identifier [Axis]: Road Safety Services, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RoadSafetyServicesIncMember	whf:RoadSafetyServicesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	5.00%	1.00%		5.00%	5.00%
Spread Above Index	6.80%	6.50%	6.80%		6.50%	6.50%
Interest Rate	12.01%	10.92%	12.01%		10.92%	10.92%
Acquisition Date	Dec. 31, 2019	Dec. 31, 2019
Maturity Date	Mar. 18, 2025	Mar. 18, 2025	Mar. 18, 2025		Mar. 18, 2025	Mar. 18, 2025
Principal/Share Amount	$ 10,861	$ 8,603
Investments, amortized cost	10,743	8,522
Investments, at fair value	$ 10,692	$ 8,432
Investment, Identifier [Axis]: Ross-Simons Topco, LP Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	us-gaap:InvestmentAffiliatedIssuerMember	Non-controlled/non-affiliate company investments		us-gaap:InvestmentAffiliatedIssuerMember	us-gaap:InvestmentAffiliatedIssuerMember
Investment, Issuer Name [Extensible Enumeration]	whf:Ross-SimonsTopcoLPMember	whf:Ross-SimonsTopcoLPMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]		Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail		Broadline Retail	Broadline Retail
Spread Above Index	8.00%	8.00%	8.00%		8.00%	8.00%
PIK interest rate	8.00%	8.00%	8.00%		8.00%	8.00%
Acquisition Date	Dec. 04, 2020	Dec. 04, 2020
Principal/Share Amount	$ 600	$ 600
Investments, amortized cost	514	514
Investments, at fair value	$ 731	$ 714
Percent of net assets	0.22%	0.21%	0.22%		0.21%	0.21%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: SFS Global Holding Company Warrants
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SFSGlobalHoldingCompanyMember	whf:SFSGlobalHoldingCompanyMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]		Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Other Diversified Financial Services	Other Diversified Financial Services	Other Diversified Financial Services		Other Diversified Financial Services	Other Diversified Financial Services
Acquisition Date	Jun. 28, 2018	Jun. 28, 2018
Maturity Date	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025		Dec. 28, 2025	Dec. 28, 2025
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Salon Republic Holdings, LLC Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]		Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Principal/Share Amount	$ 400	$ 400
Investments, amortized cost	400	400
Investments, at fair value	$ 233	$ 400
Percent of net assets	0.07%	0.12%	0.07%		0.12%	0.12%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	7.00%	8.00%		7.00%	7.00%
Interest Rate	13.23%	11.42%	13.23%		11.42%	11.42%
Investment, interest rate, paid in cash	12.73%		12.73%
PIK interest rate	0.50%		0.50%
Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027		Dec. 02, 2027	Dec. 02, 2027
Principal/Share Amount	$ 468	$ 56
Investments, amortized cost	460	55
Investments, at fair value	$ 442	$ 55
Percent of net assets	0.14%	0.02%	0.14%		0.02%	0.02%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	7.00%	8.00%		7.00%	7.00%
Interest Rate	13.24%	11.42%	13.24%		11.42%	11.42%
Investment, interest rate, paid in cash	12.74%		12.74%
PIK interest rate	0.50%		0.50%
Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027		Dec. 02, 2027	Dec. 02, 2027
Principal/Share Amount	$ 474	$ 258
Investments, amortized cost	462	251
Investments, at fair value	$ 463	$ 251
Percent of net assets	0.14%	0.08%	0.14%		0.08%	0.08%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	8.00%	7.50%	8.00%		7.50%	7.50%
Interest Rate	13.20%	11.73%	13.20%		11.73%	11.73%
Investment, interest rate, paid in cash	12.70%		12.70%
PIK interest rate	0.50%		0.50%
Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027		Dec. 02, 2027	Dec. 02, 2027
Principal/Share Amount	$ 5,139	$ 5,155
Investments, amortized cost	5,003	5,003
Investments, at fair value	$ 5,012	$ 5,003
Percent of net assets	1.54%	1.50%	1.54%		1.50%	1.50%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Salon Republic Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
PIK interest rate	8.00%	8.00%	8.00%		8.00%	8.00%
Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Principal/Share Amount	$ 200	$ 200
Investments, amortized cost	200	200
Investments, at fair value	$ 200	$ 200
Percent of net assets	0.06%	0.06%	0.06%		0.06%	0.06%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Sigue Corporation Warrants
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Controlled affiliate company investments	Non-controlled/non-affiliate company investments		Controlled affiliate company investments	Controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SigueCorporationMember	whf:SigueCorporationMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]		Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Other Diversified Financial Services	Other Diversified Financial Services	Other Diversified Financial Services		Other Diversified Financial Services	Other Diversified Financial Services
Acquisition Date	Jun. 28, 2018	Jun. 28, 2018
Maturity Date	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025		Dec. 28, 2025	Dec. 28, 2025
Principal/Share Amount	$ 22	$ 22
Investments, amortized cost	2,890	2,890
Investments, at fair value	$ 3,397	$ 3,788
Percent of net assets	1.04%	1.14%	1.04%		1.14%	1.14%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Sklar Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		Sklar Holdings, Inc [Member]
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		us-gaap:PrimeRateMember			us-gaap:PrimeRateMember	us-gaap:PrimeRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		8.75%			8.75%	8.75%
Interest Rate		16.25%			16.25%	16.25%
Investment, interest rate, paid in cash		14.25%			14.25%	14.25%
PIK interest rate		2.00%			2.00%	2.00%
Acquisition Date		Nov. 13, 2019
Maturity Date		May 13, 2023			May 13, 2023	May 13, 2023
Principal/Share Amount		$ 7,353
Investments, amortized cost		7,302
Investments, at fair value		$ 6,537
Percent of net assets		1.97%			1.97%	1.97%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SleepOpCoLLCMember	whf:SleepOpCoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings	Home Furnishings	Home Furnishings		Home Furnishings	Home Furnishings
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.75%	10.40%	11.75%		10.40%	10.40%
Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026		Oct. 12, 2026	Oct. 12, 2026
Principal/Share Amount	$ 832
Investments, amortized cost	821
Investments, at fair value	$ 828	$ (39)
Percent of net assets	0.25%	(0.01%)	0.25%		(0.01%)	(0.01%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SleepOpCoLLCMember	whf:SleepOpCoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings	Home Furnishings	Home Furnishings		Home Furnishings	Home Furnishings
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.61%	10.40%	11.61%		10.40%	10.40%
Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026		Oct. 12, 2026	Oct. 12, 2026
Principal/Share Amount	$ 20,721	$ 20,834
Investments, amortized cost	20,447	20,517
Investments, at fair value	$ 20,505	$ 20,210
Percent of net assets	6.30%	6.08%	6.30%		6.08%	6.08%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread E plus 6.25%, Rate 9.00%, Due 4/28/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SmaltoInc.Member	whf:SmaltoInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances		Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember		whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.25%	6.25%	6.25%		6.25%	6.25%
Interest Rate	9.85%	9.00%	9.85%		9.00%	9.00%
Acquisition Date	May 04, 2022	May 04, 2022
Maturity Date	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028		Apr. 28, 2028	Apr. 28, 2028
Principal/Share Amount	$ 6,608	$ 6,642
Investments, amortized cost	6,843	6,865
Investments, at fair value	$ 7,043	$ 6,899
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 11.04%, Due 4/28/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SmaltoInc.Member	whf:SmaltoInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances		Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.39%	11.04%	11.39%		11.04%	11.04%
Acquisition Date	May 04, 2022	May 04, 2022
Maturity Date	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028		Apr. 28, 2028	Apr. 28, 2028
Principal/Share Amount	$ 1,006	$ 1,012
Investments, amortized cost	990	994
Investments, at fair value	$ 991	$ 986
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Class A Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember		us-gaap:CommonClassAMember	us-gaap:CommonClassAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Principal/Share Amount	$ 2	$ 2
Investments, amortized cost	1,941	1,941
Investments, at fair value	$ 182	$ 131
Percent of net assets	0.06%	0.04%	0.06%		0.04%	0.04%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc First Lien Secured Term Loan C
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember		whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Spread Above Index	9.50%	9.50%	9.50%		9.50%	9.50%
Interest Rate		9.50%			9.50%	9.50%
Investment, interest rate, paid in cash		0.00%			0.00%	0.00%
PIK interest rate	9.50%	9.50%	9.50%		9.50%	9.50%
Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Principal/Share Amount	$ 1,580	$ 1,268
Investments, amortized cost	1,577	1,265
Investments, at fair value	$ 1,563	$ 1,198
Percent of net assets	0.48%	0.36%	0.48%		0.36%	0.36%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Warrants
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]		Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities	Leisure Facilities	Leisure Facilities		Leisure Facilities	Leisure Facilities
Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Maturity Date	Jun. 28, 2028	Jun. 28, 2028	Jun. 28, 2028		Jun. 28, 2028	Jun. 28, 2028
Principal/Share Amount	$ 1	$ 1
Investments, amortized cost	793	793
Investments, at fair value	$ 74	$ 53
Percent of net assets	0.02%	0.02%	0.02%		0.02%	0.02%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 10.93
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.00%		0.00%
Spread Above Index	6.75%		6.75%
Interest Rate	11.69%		11.69%
Acquisition Date	Mar. 23, 2023
Maturity Date	Sep. 28, 2029		Sep. 28, 2029
Principal/Share Amount	$ 535
Investments, amortized cost	652
Investments, at fair value	$ 657
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	11.80%	11.05%	11.80%		11.05%	11.05%
Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029		Sep. 28, 2029	Sep. 28, 2029
Principal/Share Amount	$ 365	$ 53
Investments, amortized cost	355	51
Investments, at fair value	$ 359	$ 52
Percent of net assets		0.02%			0.02%	0.02%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55 One
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	11.80%	11.05%	11.80%		11.05%	11.05%
Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029		Sep. 28, 2029	Sep. 28, 2029
Investments, at fair value		$ (62)
Percent of net assets		(0.02%)			(0.02%)	(0.02%)
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	12.13%	11.61%	12.13%		11.61%	11.61%
Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029		Sep. 28, 2029	Sep. 28, 2029
Principal/Share Amount	$ 3,839				$ 3,837
Investments, amortized cost	2,729	$ 2,729
Investments, at fair value	$ 2,845	$ 2,749
Percent of net assets		0.83%			0.83%	0.83%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SF
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	11.80%	11.05%	11.80%		11.05%	11.05%
Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029		Sep. 28, 2029	Sep. 28, 2029
Principal/Share Amount	$ 2,783	$ 2,783
Investments, amortized cost	2,714	2,709
Investments, at fair value	$ 2,736	$ 2,713
Percent of net assets		0.82%			0.82%	0.82%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SONIA
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember		whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember
Floor	0.00%	0.00%	0.00%		0.00%	0.00%
Spread Above Index	6.75%	6.75%	6.75%		6.75%	6.75%
Interest Rate	11.68%	10.18%	11.68%		10.18%	10.18%
Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029		Sep. 28, 2029	Sep. 28, 2029
Principal/Share Amount	$ 169					£ 168
Investments, amortized cost	204	$ 182
Investments, at fair value	$ 211	$ 199
Percent of net assets		0.06%			0.06%	0.06%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Source Code Holdings Llc First Lien Secured Term Loan 1.00 Spread SF Plus 6.50 Rate 11.41 Due 7/30/2027 One
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.70%		11.70%
Acquisition Date	Aug. 10, 2021
Maturity Date	Jul. 30, 2027		Jul. 30, 2027
Principal/Share Amount	$ 4,108
Investments, amortized cost	4,052
Investments, at fair value	$ 4,067
Investment, Identifier [Axis]: Source Code Holdings, LLC First Lien Secured Term Loan 1.00%, Spread SF PLUS, 6.50%, Rate 11.41% Due 7/30/2027
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	6.50%		6.50%
Interest Rate	11.70%		11.70%
Acquisition Date	Aug. 10, 2021
Maturity Date	Jul. 30, 2027		Jul. 30, 2027
Principal/Share Amount	$ 15,029
Investments, amortized cost	14,823
Investments, at fair value	$ 14,875
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		10.92%			10.92%	10.92%
Acquisition Date		Aug. 10, 2021
Maturity Date		Jul. 30, 2027			Jul. 30, 2027	Jul. 30, 2027
Investments, at fair value		$ 2
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		10.92%			10.92%	10.92%
Acquisition Date		Aug. 10, 2021
Maturity Date		Jul. 30, 2027			Jul. 30, 2027	Jul. 30, 2027
Principal/Share Amount		$ 15,105
Investments, amortized cost		14,874
Investments, at fair value		$ 14,882
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.17% (11.17% Cash + 2.00% PIK), Due 12/16/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:StellaandChewysLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		8.75%			8.75%	8.75%
Interest Rate		13.17%			13.17%	13.17%
Investment, interest rate, paid in cash		11.17%			11.17%	11.17%
PIK interest rate		2.00%			2.00%	2.00%
Acquisition Date		Mar. 26, 2021
Maturity Date		Dec. 16, 2025			Dec. 16, 2025	Dec. 16, 2025
Principal/Share Amount		$ 1,375
Investments, amortized cost		1,362
Investments, at fair value		$ 1,320
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.40% (11.40% Cash + 2.00% PIK), Due 12/16/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:StellaandChewysLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		8.75%			8.75%	8.75%
Interest Rate		13.40%			13.40%	13.40%
Investment, interest rate, paid in cash		11.40%			11.40%	11.40%
PIK interest rate		2.00%			2.00%	2.00%
Acquisition Date		Dec. 29, 2020
Maturity Date		Dec. 16, 2025			Dec. 16, 2025	Dec. 16, 2025
Principal/Share Amount		$ 3,893
Investments, amortized cost		3,849
Investments, at fair value		$ 3,738
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:StoiclaneMidcoLlcMember	whf:StoiclaneMidcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]		Real Estate Development [Member]	Real Estate Development [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.89%	12.20%	12.89%		12.20%	12.20%
Acquisition Date	Nov. 04, 2022	Nov. 04, 2022
Maturity Date	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027		Nov. 04, 2027	Nov. 04, 2027
Principal/Share Amount	$ 5,573	$ 3,621
Investments, amortized cost	5,483	3,563
Investments, at fair value	$ 5,556	$ 3,563
Percent of net assets	1.71%	1.07%	1.71%		1.07%	1.07%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:StoiclaneMidcoLlcMember	whf:StoiclaneMidcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]		Real Estate Development [Member]	Real Estate Development [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.50%	7.50%		7.50%	7.50%
Interest Rate	12.89%	11.82%	12.89%		11.82%	11.82%
Acquisition Date	Nov. 04, 2022	Nov. 04, 2022
Maturity Date	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027		Nov. 04, 2027	Nov. 04, 2027
Principal/Share Amount	$ 4,630	$ 4,653
Investments, amortized cost	4,529	4,540
Investments, at fair value	$ 4,584	$ 4,540
Percent of net assets	1.41%	1.37%	1.41%		1.37%	1.37%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Sunless, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:SunlessIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Personal Products			Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember			whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		11.23%			11.23%	11.23%
Acquisition Date		Jun. 30, 2022
Maturity Date		Aug. 13, 2025			Aug. 13, 2025	Aug. 13, 2025
Principal/Share Amount		$ 2,086
Investments, amortized cost		2,051
Investments, at fair value		$ 2,071
Percent of net assets		0.62%			0.62%	0.62%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Sunless, Inc., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.24%, Due 8/13/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SunlessInc.Member	whf:SunlessIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products		Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	12.03%	11.24%	12.03%		11.24%	11.24%
Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Maturity Date	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025		Aug. 13, 2025	Aug. 13, 2025
Principal/Share Amount	$ 310	$ 266
Investments, amortized cost	309	264
Investments, at fair value	$ 311	$ 270
Investment, Identifier [Axis]: Sunless, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 8/13/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SunlessInc.Member	whf:SunlessIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products		Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	12.09%	11.23%	12.09%		11.23%	11.23%
Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Maturity Date	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025		Aug. 13, 2025	Aug. 13, 2025
Principal/Share Amount	$ 5,730	$ 3,679
Investments, amortized cost	5,664	3,631
Investments, at fair value	$ 5,715	$ 3,679
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TOURIntermediateHoldingsLLCMember	whf:TOURIntermediateHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	whf:FirstLienSecuredDelayedDrawLoanMember	First Lien Secured Term Loan [Member]		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage		Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.70%	10.88%	11.70%		10.88%	10.88%
Acquisition Date	May 19, 2020	May 19, 2020
Maturity Date	May 15, 2025	May 15, 2025	May 15, 2025		May 15, 2025	May 15, 2025
Principal/Share Amount	$ 2,867	$ 2,468
Investments, amortized cost	2,846	2,458
Investments, at fair value	$ 2,867	$ 2,468
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TOURIntermediateHoldingsLLCMember	whf:TOURIntermediateHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	First Lien Secured Term Loan [Member]	whf:FirstLienSecuredDelayedDrawLoanMember		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage		Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.70%	10.88%	11.70%		10.88%	10.88%
Acquisition Date	May 19, 2020	May 19, 2020
Maturity Date	May 15, 2025	May 15, 2025	May 15, 2025		May 15, 2025	May 15, 2025
Principal/Share Amount	$ 2,394	$ 3,077
Investments, amortized cost	2,386	3,049
Investments, at fair value	$ 2,394	$ 3,077
Investment, Identifier [Axis]: Team Car Care Holdings, First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TeamCarCareHoldingsLLCMember	whf:TeamCarCareHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Automotive Retail	Automotive Retail	Automotive Retail		Automotive Retail	Automotive Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]		Base Rate [Member]	Base Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.48%	7.98%	7.48%		7.98%	7.98%
Interest Rate	12.74%	11.83%	12.74%		11.83%	11.83%
Acquisition Date	Feb. 16, 2018	Feb. 16, 2018
Maturity Date	Jun. 28, 2024	Jun. 28, 2024	Jun. 28, 2024		Jun. 28, 2024	Jun. 28, 2024
Principal/Share Amount	$ 13,902	$ 14,363
Investments, amortized cost	13,868	14,311
Investments, at fair value	$ 13,902	$ 14,363
Percent of net assets	4.27%	4.32%	4.27%		4.32%	4.32%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Technology Hardware, Storage & Peripherals			Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		9.25%			9.25%	9.25%
Interest Rate		13.67%			13.67%	13.67%
Acquisition Date		May 12, 2022
Maturity Date		Oct. 15, 2025			Oct. 15, 2025	Oct. 15, 2025
Investments, at fair value		$ 3
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Telestream Holdings Corporation [Member]	Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.75%	9.25%	9.75%		9.25%	9.25%
Interest Rate	14.94%	13.67%	14.94%		13.67%	13.67%
Acquisition Date	Oct. 15, 2020	Oct. 15, 2020
Maturity Date	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025		Oct. 15, 2025	Oct. 15, 2025
Principal/Share Amount	$ 932	$ 927
Investments, amortized cost	918	910
Investments, at fair value	$ 930	$ 928
Percent of net assets	0.29%	0.28%	0.29%		0.28%	0.28%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Telestream Holdings Corporation [Member]	Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	9.75%	9.25%	9.75%		9.25%	9.25%
Interest Rate	14.99%	13.67%	14.99%		13.67%	13.67%
Acquisition Date	Oct. 15, 2020	Oct. 15, 2020
Maturity Date	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025		Oct. 15, 2025	Oct. 15, 2025
Principal/Share Amount	$ 15,844	$ 15,846
Investments, amortized cost	15,607	15,556
Investments, at fair value	$ 15,758	$ 15,762
Percent of net assets	4.84%	4.74%	4.84%		4.74%	4.74%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TheKyjenCompanyLLCMember	whf:TheKyjenCompanyLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Products	Household Products	Household Products		Household Products	Household Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	6.58%	7.50%		6.58%	6.58%
Interest Rate	13.14%	10.90%	13.14%		10.90%	10.90%
Investment, interest rate, paid in cash	12.14%	10.40%	12.14%		10.40%	10.40%
PIK interest rate	1.00%	0.50%	1.00%		0.50%	0.50%
Acquisition Date	Apr. 05, 2021	Apr. 05, 2021
Maturity Date	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026		Apr. 05, 2026	Apr. 05, 2026
Principal/Share Amount		$ 798
Investments, amortized cost		790
Investments, at fair value	$ (58)	$ 724
Percent of net assets	(0.02%)	0.22%	(0.02%)		0.22%	0.22%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TheKyjenCompanyLLCMember	whf:TheKyjenCompanyLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Products	Household Products	Household Products		Household Products	Household Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.50%	7.00%	7.50%		7.00%	7.00%
Interest Rate	13.14%	11.65%	13.14%		11.65%	11.65%
Investment, interest rate, paid in cash	12.14%	11.15%	12.14%		11.15%	11.15%
PIK interest rate	1.00%	0.50%	1.00%		0.50%	0.50%
Acquisition Date	Apr. 05, 2021	Apr. 05, 2021
Maturity Date	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026		Apr. 05, 2026	Apr. 05, 2026
Principal/Share Amount	$ 11,357	$ 11,334
Investments, amortized cost	11,264	11,223
Investments, at fair value	$ 10,564	$ 10,429
Percent of net assets	3.25%	3.14%	3.25%		3.14%	3.14%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Token Buyer, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TokenBuyerIncMember	whf:TokenBuyerIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances	Household Appliances	Household Appliances		Household Appliances	Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	0.50%	0.50%	0.50%		0.50%	0.50%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.20%	10.73%	11.20%		10.73%	10.73%
Acquisition Date	May 26, 2022	May 26, 2022
Maturity Date	May 31, 2029	May 31, 2029	May 31, 2029		May 31, 2029	May 31, 2029
Principal/Share Amount	$ 7,178	$ 7,214
Investments, amortized cost	6,688	6,680
Investments, at fair value	$ 6,171	$ 6,615
Percent of net assets	1.90%	1.99%	1.90%		1.99%	1.99%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: Transervice Holdings, Inc. (d/b/a Transervice Logistics, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TranserviceHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	2.00%		2.00%
Spread Above Index	7.50%		7.50%
Interest Rate	12.71%		12.71%
Acquisition Date	Jun. 29, 2023
Maturity Date	Jun. 29, 2028		Jun. 29, 2028
Principal/Share Amount	$ 9,000
Investments, amortized cost	8,730
Investments, at fair value	$ 8,730
Percent of net assets	2.68%		2.68%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: Trimlite Buyer LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:TrimliteBuyerLLCMember	whf:TrimliteBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products		Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember		whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	11.38%	10.88%	11.38%		10.88%	10.88%
Acquisition Date	Jul. 27, 2021	Jul. 27, 2021
Maturity Date	Jul. 27, 2026	Jul. 27, 2026	Jul. 27, 2026		Jul. 27, 2026	Jul. 27, 2026
Principal/Share Amount			$ 19,624		$ 20,582
Investments, amortized cost	$ 15,439	$ 16,162
Investments, at fair value	$ 14,661	$ 14,926
Percent of net assets	4.51%	4.49%	4.51%		4.49%	4.49%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:TrueBlueCarWashLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember			whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services			Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.50%			6.50%	6.50%
Interest Rate		10.92%			10.92%	10.92%
Acquisition Date		Oct. 17, 2019
Maturity Date		Oct. 17, 2024			Oct. 17, 2024	Oct. 17, 2024
Principal/Share Amount		$ 4,160
Investments, amortized cost		4,107
Investments, at fair value		$ 4,189
Percent of net assets		1.26%			1.26%	1.26%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled/non-affiliate company investments			Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]		whf:TrueBlueCarWashLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]			First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember			srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services			Specialized Consumer Services	Specialized Consumer Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]			Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor		1.00%			1.00%	1.00%
Spread Above Index		6.88%			6.88%	6.88%
Interest Rate		11.30%			11.30%	11.30%
Acquisition Date		Oct. 17, 2019
Maturity Date		Oct. 17, 2024			Oct. 17, 2024	Oct. 17, 2024
Principal/Share Amount		$ 9,903
Investments, amortized cost		9,822
Investments, at fair value		$ 9,942
Percent of net assets		2.99%			2.99%	2.99%
Investment, Restriction Status [true false]		true			true	true
Investment, Significant Unobservable Input [true false]		true			true	true
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TurnberrySolutionsInc.Member	whf:TurnberrySolutionsInc.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	5.00%	6.00%	5.00%		6.00%	6.00%
Interest Rate	10.95%	9.19%	10.95%		9.19%	9.19%
Acquisition Date	Aug. 10, 2021	Aug. 10, 2021
Maturity Date	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026		Sep. 02, 2026	Sep. 02, 2026
Investments, at fair value		$ (4)
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TurnberrySolutionsInc.Member	whf:TurnberrySolutionsInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	6.00%	6.00%	6.00%		6.00%	6.00%
Interest Rate	10.95%	9.19%	10.95%		9.19%	9.19%
Acquisition Date	Aug. 10, 2021	Aug. 10, 2021
Maturity Date	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026		Sep. 02, 2026	Sep. 02, 2026
Principal/Share Amount	$ 6,057	$ 6,087
Investments, amortized cost	5,980	5,998
Investments, at fair value	$ 5,983	$ 5,964
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:UsMethanolMidcoLlcMember	whf:UsMethanolMidcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals	Commodity Chemicals	Commodity Chemicals		Commodity Chemicals	Commodity Chemicals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
PIK interest rate		12.17%			12.17%	12.17%
Acquisition Date	Dec. 20, 2022	Dec. 20, 2022
Maturity Date	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027		Dec. 20, 2027	Dec. 20, 2027
Investments, at fair value	$ (81)
Percent of net assets	(0.02%)		(0.02%)
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:UsMethanolMidcoLlcMember	whf:UsMethanolMidcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals	Commodity Chemicals	Commodity Chemicals		Commodity Chemicals	Commodity Chemicals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%	1.00%	1.00%		1.00%	1.00%
Spread Above Index	7.75%	7.75%	7.75%		7.75%	7.75%
PIK interest rate	12.93%	12.17%	12.93%		12.17%	12.17%
Acquisition Date	Dec. 20, 2022	Dec. 20, 2022
Maturity Date	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027		Dec. 20, 2027	Dec. 20, 2027
Principal/Share Amount	$ 4,972	$ 4,667
Investments, amortized cost	4,868	4,551
Investments, at fair value	$ 4,874	$ 4,551
Percent of net assets	1.50%	1.37%	1.50%		1.37%	1.37%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: UserZoom Technologies, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:UserzoomTechnologiesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Floor	1.00%		1.00%
Spread Above Index	7.50%		7.50%
Interest Rate	12.42%		12.42%
Acquisition Date	Jan. 12, 2023
Maturity Date	Apr. 05, 2029		Apr. 05, 2029
Principal/Share Amount	$ 9,819
Investments, amortized cost	9,546
Investments, at fair value	$ 9,626
Percent of net assets	2.95%		2.95%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Identifier [Axis]: Vistria Blocked MGT Investor, LP (d/b/a MGT Consulting Group) Series A Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:VistriaBlockedMgtInvestorLpMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Acquisition Date	Apr. 10, 2023
Investments, amortized cost	$ 314
Investments, at fair value	$ 314
Percent of net assets	0.10%		0.10%
Investment, Restriction Status [true false]	true		true
Investment, Significant Unobservable Input [true false]	true		true
Investment, Non-income Producing [true false]	false		false
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHLessorCorpMember	whf:WHLessorCorpMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	us-gaap:PrimeRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.50%	1.00%		6.50%	6.50%
Spread Above Index	5.59%	5.59%	5.59%		5.59%	5.59%
Interest Rate	10.70%	9.97%	10.70%		9.97%	9.97%
Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Maturity Date	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024		Dec. 26, 2024	Dec. 26, 2024
Investments, at fair value	$ 3	$ 4
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHLessorCorpMember	whf:WHLessorCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Floor	1.00%	6.50%	1.00%		6.50%	6.50%
Spread Above Index	5.59%	5.59%	5.59%		5.59%	5.59%
Interest Rate	10.70%	9.97%	10.70%		9.97%	9.97%
Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Maturity Date	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024		Dec. 26, 2024	Dec. 26, 2024
Principal/Share Amount	$ 7,432	$ 7,470
Investments, amortized cost	7,381	7,402
Investments, at fair value	$ 7,432	$ 7,470
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundLLCMember	whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment, Type [Extensible Enumeration]	Equity Investments	Equity Investments	Equity Investments		Equity Investments	Equity Investments
Investments, at fair value	$ 20,929	$ 20,160					15,607
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Interests
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundMember	whf:WHFSTRSOhioSeniorLoanFundMember
Investment, Type [Extensible Enumeration]	whf:LLCInterestsMember	whf:LLCInterestsMember	whf:LLCInterestsMember		whf:LLCInterestsMember	whf:LLCInterestsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Finance	Specialized Finance	Specialized Finance		Specialized Finance	Specialized Finance
Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Principal/Share Amount	$ 20,368	$ 20,000
Investments, amortized cost	20,368	20,000
Investments, at fair value	$ 20,929	$ 20,160
Percent of net assets	6.43%	6.07%	6.43%		6.07%	6.07%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	true	false		true	true
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Subordinated Note
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Controlled affiliate company investments	Non-controlled/non-affiliate company investments	Controlled affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundLLCMember	whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment, Type [Extensible Enumeration]	Subordinated Debt [Member]	Subordinated Debt [Member]	Subordinated Debt [Member]		Subordinated Debt [Member]	Subordinated Debt [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Finance	Specialized Finance	Specialized Finance		Specialized Finance	Specialized Finance
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Spread Above Index	6.50%	6.50%	6.50%		6.50%	6.50%
Interest Rate	11.66%	10.67%	11.66%		10.67%	10.67%
Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Principal/Share Amount	$ 81,472	$ 80,000
Investments, amortized cost	81,472	80,000
Investments, at fair value	$ 81,472	$ 80,000					$ 60,000
Percent of net assets	25.05%	24.07%	25.05%		24.07%	24.07%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Identifier [Axis]: What If Media Group, LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	whf:WhatIfMediaGroupLLCMember	whf:WhatIfMediaGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember		whf:CommonUnitsMember	whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media & Services	Interactive Media & Services	Interactive Media & Services		Interactive Media & Services	Interactive Media & Services
Acquisition Date	Jul. 02, 2021	Jul. 02, 2021
Principal/Share Amount	$ 851	$ 851
Investments, amortized cost	851	851
Investments, at fair value	$ 1,618	$ 1,943
Percent of net assets	0.50%	0.58%	0.50%		0.58%	0.58%
Investment, Restriction Status [true false]	true	true	true		true	true
Investment, Significant Unobservable Input [true false]	true	true	true		true	true
Investment, Non-income Producing [true false]	false	false	false		false	false

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ORGANIZATION

6 Months Ended

Jun. 30, 2023

ORGANIZATION

ORGANIZATION

NOTE 1 - ORGANIZATION

WhiteHorse Finance, Inc. (“WhiteHorse Finance” and, together with its subsidiaries, the “Company”) is an externally managed, non-diversified, closed-end management investment company that has elected to be treated as a business development company under the Investment Company Act of 1940, as amended (the “1940 Act”). In addition, for tax purposes, WhiteHorse Finance has elected to be treated as a regulated investment company (“RIC”) under Subchapter M of the Internal Revenue Code of 1986, as amended (the “Code”). WhiteHorse Finance’s common stock trades on the Nasdaq Global Select Market under the symbol “WHF.”

The Company’s investment objective is to generate attractive risk-adjusted returns primarily by originating and investing in senior secured loans, including first lien and second lien facilities, to performing lower middle market companies across a broad range of industries that typically carry a floating interest rate based on an index rate such as LIBOR or SOFR and have a term of three to six years. While the Company focuses principally on originating senior secured loans to lower middle market companies, it may also opportunistically make investments at other levels of a company’s capital structure, including mezzanine loans or equity interests and may receive warrants to purchase common stock in connection with its debt investments.

WhiteHorse Finance’s investment activities are managed by H.I.G. WhiteHorse Advisers, LLC (“WhiteHorse Advisers” or the “Investment Adviser”). H.I.G. WhiteHorse Administration, LLC (“WhiteHorse Administration” or the “Administrator”) provides administrative services necessary for the Company to operate.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

6 Months Ended

Jun. 30, 2023

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation: The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and include the accounts of WhiteHorse Finance and its wholly owned subsidiaries, WhiteHorse Finance Credit I, LLC (“WhiteHorse Credit”), and its subsidiary WhiteHorse Finance (CA), LLC (“WhiteHorse California”), WHF PMA Holdco Blocker, LLC, WHF American Craft Blocker, LLC, WhiteHorse RCKC Holdings, LLC and WhiteHorse Finance Holdings, LLC. The Company meets the definition of an investment company under Accounting Standards Codification (“ASC”) Topic 946, Financial Services - Investment Companies, and therefore applies the accounting and reporting guidance discussed therein to its consolidated financial statements. All significant intercompany balances and transactions have been eliminated.

Additionally, the accompanying consolidated financial statements and related financial information have been prepared pursuant to the requirements for reporting on Form 10-K and Articles 6, 10 and 12 of Regulation S-X. In the opinion of management, the consolidated financial statements reflect all adjustments, consisting solely of normal recurring accruals considered necessary for the fair presentation of financial results as of and for the periods presented.

Principles of Consolidation: Under the investment company rules and regulations pursuant to ASC Topic 946, WhiteHorse Finance is precluded from consolidating any entity other than another investment company. As provided under ASC Topic 946, WhiteHorse Finance generally consolidates any investment company when it owns 100% of its partners’ or members’ capital or equity units. The Company does not consolidate its investment in STRS JV or any of its controlled affiliate investments. See further description in Note 4.

Use of Estimates: The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the financial statements. Actual results could differ from those estimates.

Fair Value of Financial Instruments: The Company determines the fair value of its financial instruments in accordance with ASC Topic 820, Fair Value Measurements and Disclosures. ASC Topic 820 defines fair value, establishes a framework used to measure fair value and requires disclosures for fair value measurements. In accordance

with ASC Topic 820, the Company has categorized its financial instruments carried at fair value, based on the priority of the valuation technique, into a three-level fair value hierarchy. Fair value is a market-based measure considered from the perspective of the market participant who holds the financial instrument. Therefore, when market assumptions are not readily available, the Company’s own assumptions are set to reflect those that management believes market participants would use in pricing the financial instrument at the measurement date.

The Company values its investments in accordance with the 1940 Act and Rule 2a-5 thereunder, which sets forth the requirements for determining fair value in good faith. Pursuant to Rule 2a-5, the board of directors has designated the Investment Adviser to determine the fair value of the Company’s investments. The board of directors oversees the Investment Adviser’s performance of its valuation responsibilities, and in support of this oversight, the Investment Adviser provides periodic reports to the Company’s board of directors related to the fair valuation process. The Investment Adviser carries out its responsibilities as valuation designee primarily through its valuation committee (the “Valuation Committee”), assisted by third-party valuation firms, administrative personnel, and other service providers, as appropriate. The Valuation Committee consists of a number of representatives from different functions of the Investment Adviser. The Investment Adviser conducts the fair valuation process on a quarterly basis, subject to the oversight of the Company’s board of directors through the audit committee, using consistently applied valuation procedures. In accordance with the Company’s valuation procedures, the Investment Adviser performs periodic testing of the appropriateness and accuracy of fair value methodologies, and has established a process for approving, monitoring, and evaluating independent pricing service providers. Effective September 8, 2022, the board of directors designated the Investment Adviser as the Company’s valuation designee.

Investments that are not publicly traded or for which market prices are not readily available will be valued based on the input of the Investment Adviser and independent third-party valuation firms engaged to review Company investments. These external reviews are used by the Company’s Investment Adviser, subject to the oversight of the board of directors, to review the Company’s internal valuation of investments during the year.

Investment Transactions: The Company records investment transactions on a trade date basis. These transactions may settle subsequent to the trade date depending on the transaction type. Certain expenses related to legal and tax consultation, due diligence, rating fees, valuation expenses and independent collateral appraisals may arise when the Company makes certain investments. These expenses are recognized in the consolidated statements of operations as they are incurred.

Foreign currency translation: The Company’s books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:

(1) cash and cash equivalents, restricted cash and cash equivalents, fair value of investments, interest receivable, and other assets and liabilities — at the spot exchange rate on the last business day of the period; and

(2) purchases and sales of investments, income and expenses — at the exchange rates prevailing on the respective dates of such transactions.

Although net assets and fair values are presented based on the applicable foreign exchange rates described above, the Company does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in fair values of investments held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. Fluctuations arising from the translation of assets other than investments and liabilities are included with the net change in unrealized appreciation (depreciation) on translation of assets and liabilities in foreign currencies on the consolidated statements of operations.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with investing in U.S. companies. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices to be more volatile than those of comparable U.S. companies or U.S. government securities.

Revenue Recognition: The Company’s revenue recognition policies are as follows:

Sales: Realized gains or losses on the sales of investments are calculated by using the specific identification method.

Investment Income: Interest income, adjusted for amortization of premium and accretion of discount, is recorded on an accrual basis. The Company may also receive closing, commitment, prepayment, amendment and other fees from portfolio companies in the ordinary course of business.

Dividend income is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies.

Closing fees associated with investments in portfolio companies are deferred and recognized as interest income over the respective terms of the applicable loans. Upon the prepayment of a loan or debt security, any unamortized loan closing fees are recorded as part of interest income. Commitment fees are based upon the undrawn portion committed by the Company and are recorded as interest income on an accrual basis. Prepayment, amendment and other fees are recognized when earned, generally when such fees are receivable, and are included in fee income on the consolidated statements of operations.

The Company may invest in loans that contain a PIK interest rate provision. PIK interest is accrued at the contractual rates and added to loan principal on the reset dates to the extent such amounts are expected to be collected.

Non-accrual loans: Loans are placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected. The Company may conclude that non-accrual status is not required if the loan has sufficient collateral value and is in the process of collection. Accrued interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment. Non-accrual loans are restored to accrual status when past due principal and interest is paid and, in management’s judgment, are likely to remain current.

Cash and Cash Equivalents: Cash and cash equivalents include cash, deposits with financial institutions, and short-term liquid investments in money market funds with original maturities of three months or less.

Restricted Cash and Cash Equivalents: Restricted cash and cash equivalents include amounts that are collected and held by the trustee appointed as custodian of the assets securing the Credit Facility (as defined in Note 6). Restricted cash is held by the trustee for the payment of interest expense and principal on the outstanding borrowings or reinvestment into new assets. Restricted cash that represents interest or fee income is transferred to unrestricted cash accounts by the trustee generally once a quarter after the payment of operating expenses and amounts due under the Credit Facility.

Offering Costs: The Company may incur legal, accounting, regulatory, investment banking and other costs in relation to equity offerings. Offering costs are deferred and charged against paid-in capital in excess of par on completion of the related offering.

Deferred Financing Costs: Deferred financing costs represent fees and other direct incremental costs incurred in connection with the Company’s borrowings. These amounts are amortized and are included in interest expense in the consolidated statements of operations over the estimated life of the borrowings. Deferred financing costs are presented in the consolidated statements of assets and liabilities as a direct reduction from the carrying amount of the related debt liability.

Income Taxes: The Company elected to be treated as a RIC under Subchapter M of the Code. In order to maintain its status as a RIC, among other requirements, the Company is required to distribute dividends for U.S. federal income tax purposes to its stockholders each taxable year generally of an amount at least equal to 90% of the sum of ordinary

income and realized net short-term capital gains in excess of realized net long-term capital losses, if any, out of the assets legally available for distribution. In addition, the Company will incur a nondeductible excise tax equal to 4% of the amount by which (1) 98% of ordinary income for the calendar year (taking into account certain deferrals and elections), (2) 98.2% of capital gains in excess of capital losses, adjusted for certain ordinary losses, for the one-year period ending on October 31 of the calendar year and (3) any ordinary income and capital gain income for preceding years that were not distributed during such years and on which the Company incurred no U.S. federal income tax exceed distributions for the year. The Company accrues estimated excise tax on the amount, if any, that estimated taxable income is expected to exceed the level of stockholder distributions described above.

The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statement is the largest benefit or expense that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. Any tax positions not deemed to satisfy the more-likely-than-not threshold are reversed and recorded as tax benefit or tax expense, as appropriate, in the current year. Management has analyzed the Company’s tax positions, and the Company has concluded that the Company did not have any unrecognized tax benefits or unrecognized tax liabilities related to uncertain tax positions as of June 30, 2023 and December 31, 2022.

Penalties or interest that may be assessed related to any income taxes would be classified as general and administrative expenses on the consolidated statements of operations. The Company had no amounts accrued for interest or penalties as of June 30, 2023 or December 31, 2022. The Company does not expect the total amount of unrecognized tax benefits to significantly change in the next twelve months. The Company’s tax returns are subject to examination by federal, state and local taxing authorities. Because many types of transactions are susceptible to varying interpretations under U.S. federal and state income tax laws and regulations, the amounts reported in the accompanying consolidated financial statements may be subject to change at a later date by the respective taxing authorities. Tax returns for each of the federal tax years since 2019 remain subject to examination by the Internal Revenue Service.

As of June 30, 2023 and December 31, 2022, the cost of investments for federal income tax purposes was $762,622 and $784,812 resulting in net unrealized depreciation of $34,270 and $24,584, respectively. This is comprised of gross unrealized appreciation of $7,800 and $7,881 and gross unrealized depreciation of $42,070 and $32,465, on a tax basis, as of June 30, 2023 and December 31, 2022, respectively.

Dividends and Distributions: Dividends and distributions to common stockholders are recorded on the ex-dividend date. Quarterly distribution payments are determined by the Company’s board of directors and are paid from taxable earnings estimated by management and may include a return of capital and/or capital gains. Net realized capital gains, if any, are distributed at least annually, although the Company may decide to retain such capital gains for investment.

The Company maintains an “opt out” dividend reinvestment plan (“DRIP”) for common stockholders. As a result, if the Company declares a distribution or other dividend, stockholders’ cash distributions will be automatically reinvested in additional shares of common stock, unless they specifically “opt out” of the DRIP so as to receive cash distributions.

Earnings per Share: The Company calculates earnings per share as earnings available to stockholders divided by the weighted average number of shares outstanding during the period.

Risks and Uncertainties: In the normal course of business, the Company encounters primarily two significant types of economic risks: credit and market. Credit risk is the risk of default on the Company’s investments that result from an issuer’s, borrower’s or derivative counterparty’s inability or unwillingness to make contractually required payments. Market risk reflects changes in the value of investments due to changes in interest rates, spreads or other market factors, including the value of the collateral underlying investments held by the Company. Management believes that the carrying value of the Company’s investments are fairly stated, taking into consideration these risks along with estimated collateral values, payment histories and other market information.

Reclassifications: Certain amounts in the consolidated financial statements have been reclassified. These reclassifications had no material impact on the Company’s consolidated financial position, results of operations or cash flows as previously reported.

Effective March 17, 2023, the Global Industry Classification Standards structure was updated with changes to certain industry naming conventions and the Company has adopted the new structure in the consolidated financial statements for all periods presented.

Recent Accounting Pronouncements: In June 2022, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This ASU clarifies the guidance in ASC 820 on the fair value measurement of an equity security that is subject to a contractual sale restriction. The ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. The guidance also requires specific disclosures related to equity securities that are subject to contractual sale restrictions. The guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within that fiscal year under a prospective approach, with early adoption permitted. The Company is currently evaluating the impact of the adoption of ASU 2022-03 on its consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting if certain criteria are met. The guidance is effective from March 12, 2020 through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which deferred the sunset day of this guidance to December 31, 2024. The adoption of this ASU did not have a material impact on the consolidated financial statements.

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FORWARD CURRENCY CONTRACTS

6 Months Ended

Jun. 30, 2023

FORWARD CURRENCY CONTRACTS

FORWARD CURRENCY CONTRACTS

NOTE 3 - FORWARD CURRENCY CONTRACTS

The Company may enter into foreign currency forward contracts from time to time to facilitate settlement of purchases and sales of investments denominated in foreign currencies and to economically hedge the impact that an adverse change in foreign exchange rates would have on the value of the Company’s investments denominated in foreign currencies. A foreign currency forward contract is a commitment to purchase or sell a foreign currency at a future date at a negotiated forward rate. These contracts are marked-to-market by recognizing the difference between the contract forward exchange rate and the forward market exchange rate on the last day of the period presented as unrealized appreciation or depreciation. Realized gains or losses are recognized when forward contracts are settled. Risks arise as a result of the potential inability of the counterparties to meet the terms of their contracts. The Company attempts to limit counterparty risk by only dealing with well-known counterparties.

The Company utilizes forward foreign currency exchange contracts to protect itself against fluctuations in exchange rates. The Company may choose to renew contracts quarterly unless otherwise settled by the Company or the counterparty.

The following table provides a breakdown of our forward currency contracts for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
($ in thousands)		2023		2022		2023		2022
Realized gain (loss) on forward currency contracts	$	4	$	(8)	$	(3)	$	(8)
Unrealized appreciation (depreciation) on forward currency contracts		(12)		4		(6)		—
Total net realized and unrealized gains (losses) on forward currency contracts	$	(8)	$	(4)	$	(9)	$	(8)

The value associated with unrealized gain or loss on open contracts is included in unrealized appreciation or depreciation on forward currency contracts within the consolidated statements of assets and liabilities. Open contracts as of June 30, 2023 were as follows:

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	554	CAD	$	410	USD	8/4/23	$	—	$	(9)
Total								$	—	$	(9)

The following table is a summary of the average USD notional exposure to foreign currency forward contracts for the three and six months ended June 30, 2023 and 2022:

	Three months ended June 30,				Six months ended June 30,
Average USD notional outstanding		2023		2022		2023		2022
Forward currency contracts	$	401	$	205	$	395	$	217

The foreign currency forward contracts open at the end of the period are generally indicative of the volume of activity during the period. The value associated with unrealized gain or loss on open contracts is included in unrealized appreciation or depreciation on forward currency contracts within the consolidated statements of assets and liabilities.

Offsetting of Derivative Instruments

The Company has derivative instruments that are subject to master netting agreements. These agreements include provisions to offset positions with the same counterparty in the event of default by one of the parties. The Company’s unrealized appreciation or depreciation on derivative instruments are reported as gross assets and liabilities, respectively, in the consolidated statements of assets and liabilities. The following tables present the Company’s assets and liabilities related to derivatives by counterparty, net of amounts available for offset under a master netting arrangement and net of any collateral received or pledged by the Company for such assets and liabilities as of June 30, 2023 and December 31, 2022.

	As of June 30, 2023
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9
Total	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

	As of December 31, 2022
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Morgan Stanley (GBP)		—		3		—		—		—		—		—		—		3
Total	$	—	$	3	$	—	$	—	$	—	$	—	$	—	$	—	$	3

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

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INVESTMENTS

6 Months Ended

Jun. 30, 2023

INVESTMENTS

INVESTMENTS

NOTE 4 - INVESTMENTS

Investments consisted of the following:

	As of June 30, 2023				As of December 31, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
First lien secured loans	$	608,426	$	592,900	$	631,091	$	618,267
Second lien secured loans		24,728		17,132		24,685		20,634
Subordinated unsecured loans		167		167		167		167
Subordinated Note to STRS JV		81,472		81,472		80,000		80,000
Equity (excluding STRS JV)		24,862		15,752		26,486		21,000
Equity in STRS JV		20,368		20,929		20,000		20,160
Total	$	760,023	$	728,352	$	782,429	$	760,228

The following table shows the portfolio composition by industry grouping at fair value:

Industry ($ in thousands)	As of June 30, 2023				As of December 31, 2022
Advertising	$	5,242	0.8	%	$	154	—	%
Air Freight & Logistics		25,555	4.1			16,107	2.4
Alternative Carriers		12,414	2.0			12,068	1.8
Application Software		35,429	5.7			27,117	4.1
Asset Management & Custody Banks		10,205	1.6			10,144	1.5
Automotive Retail		13,902	2.2			14,363	2.2
Broadcasting		7,415	1.2			7,780	1.2
Broadline Retail		36,448	5.8			37,191	5.6
Building Products		24,109	3.9			24,362	3.7
Cable & Satellite		20,612	3.3			20,489	3.1
Commodity Chemicals		20,899	3.3			20,410	3.1
Construction Materials		7,475	1.2			7,459	1.1
Data Processing & Outsourced Services		22,129	3.5			22,817	3.5
Distributors		1,734	0.3			4,171	0.6
Diversified Chemicals		9,938	1.6			13,268	2.0
Diversified Financial Services		3,397	0.5			3,788	0.7
Diversified Support Services		9,483	1.5			11,035	1.7
Education Services		12,583	2.0			12,869	1.9
Electric Utilities		15,743	2.5			10,411	1.7
Environmental & Facilities Services		12,380	2.0			18,459	2.8
Health Care Facilities		9,871	1.6			10,131	1.5
Health Care Services		23,711	3.8			23,333	3.5
Health Care Supplies		19,333	3.1			23,090	3.5
Heavy Electrical Equipment		16,449	2.6			14,520	2.2
Home Furnishings		25,634	4.1			24,780	3.8
Household Appliances		6,171	1.0			6,615	1.0
Household Products		10,506	1.7			11,153	1.7
Industrial Machinery & Supplies & Components		8,089	1.3			9,874	1.5
Interactive Media & Services		9,107	1.5			9,488	1.4
Investment Banking & Brokerage		9,325	1.5			18,240	2.8
IT Consulting & Other Services		5,880	0.9			15,408	2.3
Leisure Facilities		22,509	3.6			21,979	3.3
Leisure Products		13,749	2.2			13,366	2.0
Life Sciences Tools & Services		4,827	0.8			4,824	0.8
Office Services & Supplies		28,560	4.6			25,832	3.9
Packaged Foods & Meats		—	—			10,941	1.7
Paper & Plastic Packaging Products & Materials		123	—			283	0.1
Personal Care Products		11,182	1.8			13,482	2.0
Real Estate Development		10,140	1.5			8,103	1.2
Real Estate Operating Companies		6,350	1.0			5,909	0.9
Research & Consulting Services		21,713	3.5			21,896	3.3
Specialized Consumer Services		23,754	3.8			37,819	5.7
Specialized Finance(1)		—	—			—	—
Systems Software		15,188	2.4			17,847	2.7
Technology Hardware, Storage & Peripherals		16,688	2.7			16,693	2.5
Total(1)	$	625,951	100.0	%	$	660,068	100.0	%

(1) Excludes investments in STRS JV.

As of June 30, 2023, the portfolio companies underlying the investments are all located in the United States and its territories, except for JZ Capital Partners Ltd., which is domiciled in Guernsey and Trimlite Buyer, LLC, which is domiciled in Canada. As of June 30, 2023 and December 31, 2022, the weighted average remaining term of the Company’s debt investments, excluding non-accrual investments, were approximately 3.1 years and 3.4 years, respectively.

As of June 30, 2023 the total cost basis of non-accrual loans was $28,348 and the total fair value of non-accrual loans was $19,013. As of December 31, 2022, there were no loans on non-accrual status.

An affiliated company is generally a portfolio company in which the Company owns 5% or more of its voting securities. A controlled affiliated company is generally a portfolio company in which the Company owns more than 25% of its voting securities or has the power to exercise control over its management or policies (including through a management agreement).

The following table presents the schedule of investments in and advances to affiliated and controlled persons (as defined by the 1940 Act) as of and for the six months ended June 30, 2023:

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,		Gross		Gross		Realized		Appreciation		June 30,
Affiliated Person(1)	Asset	income		2022		Additions(2)		Reductions(3)		Gain (Loss)		(Depreciation)		2023
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	84	$	6,380	$	—	$	(6,605)	$	(339)	$	564	$	—
Playmonster Group LLC	Priority First Lien Secured Term Loan		54		176		868		—		—		(14)		1,030
Playmonster Group LLC	First Lien Secured Term Loan		(85)		2,977		—		—		—		(581)		2,396
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		—		—		—		—		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		—		—		—		—		—
Chase Products Co. (f/k/a Starco)	First Lien Secured Term Loan		97		—		2,790		—		—		(201)		2,589
Pressurized Holdings, LLC (f/k/a Starco)	Common Units		—		—		—		—		—		—		—
Pressurized Holdings, LLC (f/k/a Starco)	Preferred Units		—		—		4,537		—		—		(4,290)		247
Total Non-controlled affiliates		$	150	$	9,533	$	8,195	$	(6,605)	$	(339)	$	(4,522)	$	6,262
Controlled affiliates
American Crafts, LC	Priority First Lien Secured Term Loan	$	225	$	—	$	4,750	$	—	$	—	$	(145)	$	4,605
American Crafts, LC	First Lien Secured Term Loan		585		—		7,491		—		—		(664)		6,827
American Crafts, LC	First Lien Secured Delayed Draw Loan		98		—		1,259		—		—		(113)		1,146
American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Warrants		—		—		—		—		—		—		—
New American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Class A Units		—		—		—		—		—		—		—
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note		4,538		80,000		1,472		—		—		—		81,472
WHF STRS Ohio Senior Loan Fund LLC*	Equity		2,945		20,160		368		—		—		401		20,929
Total Controlled affiliates		$	8,391	$	100,160	$	15,340	$	—	$	—	$	(521)	$	114,979

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware limited liability company that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of limited liability company (“LLC”) equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

(1) Refer to the consolidated schedule of investments for the principal amount, industry classification and other security detail of each portfolio company.

(2) Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK, an exchange of existing investments for new investments and the transfers of an existing portfolio company into this category from a different category.

(3) Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, an exchange of existing investments for new investments and the transfers of an existing portfolio company into this category from a different category.

In March 2023, as a result of a restructuring agreement between the Company and American Crafts, LC, the Company’s investments are controlled affiliate investments, as defined by the 1940 Act.

In March 2023, as part of a restructuring agreement between the Company and Sklar Holdings, Inc (d/b/a Starco), the Company’s first lien secured term loan investment to Sklar Holdings, Inc, with a total cost basis of $3,339, converted into a new first lien secured term loan to Chase Products Co. (f/k/a Starco) and preferred units and common units of Pressurized Holdings, LLC (f/k/a Starco). During the three months ended June 30, 2023, the Company received a paydown of $690 on its investment in Sklar Holdings, Inc (d/b/a Starco) first lien secured term loan, and the remaining Sklar Holdings, Inc (d/b/a Starco) first lien secured term loan investment, with a cost basis of $3,892, was converted into preferred units of Pressurized Holdings, LLC (f/k/a Starco).

The following table presents the schedule of investments in and advances to affiliated and controlled persons (as defined by the 1940 Act) as of and for the year ended December 31, 2022:

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,						Realized		Appreciation		December 31,
Affiliated Person(1)	Asset	income		2021		Purchases		Sales		Gain (Loss)		(Depreciation)		2022
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	321	$	6,874	$	—	$	—	$	—	$	(494)	$	6,380
PlayMonster LLC	First Lien Secured Revolving Loan		13		—		1,088		(1,088)		—		—		—
Playmonster Group LLC	Priority First Lien Secured Term Loan		1		—		176		—		—		—		176
Playmonster Group LLC	First Lien Secured Term Loan		325		—		3,662		—		—		(685)		2,977
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		3,600		—		—		(3,600)		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		460		—		—		(460)		—
Total Non-controlled affiliates		$	660	$	6,874	$	8,986	$	(1,088)	$	—	$	(5,239)	$	9,533
Controlled affiliates
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note	$	6,385	$	60,000	$	20,000	$	—	$	—	$	—	$	80,000
WHF STRS Ohio Senior Loan Fund LLC*	Equity		6,977		15,607		5,000		—		—		(447)		20,160
Total Controlled affiliates		$	13,362	$	75,607	$	25,000	$	—	$	—	$	(447)	$	100,160

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware LLC that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of LLC equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

(1) Refer to the consolidated schedule of investments for the principal amount, industry classification and other security detail of each portfolio company.

For the year ended December 31, 2022, the Company recovered $1,725 on an equity investment to the RCS Creditor Trust Class B Units and was previously reported as a non-controlled affiliate realized gain in the consolidated statements of operations.

On January 2022, as part of a restructuring agreement between the Company and PlayMonster LLC, the Company’s first lien secured term loan and delayed draw loan investments to PlayMonster LLC, with a total cost basis of $7,045, converted into a new first lien secured term loan, preferred stock and common stock of Playmonster Group LLC. On June 2022, the PlayMonster LLC first lien secured revolving loan investment was fully realized. A portion of the PlayMonster LLC first lien secured revolving loan investment restructured into the existing Playmonster Group LLC first lien secured term loan, with a total cost basis of $437.

WHF STRS Ohio Senior Loan Fund LLC

On January 14, 2019, the Company entered into an LLC operating agreement with STRS Ohio to co-manage a newly formed joint venture investment company, STRS JV, a Delaware LLC. STRS Ohio and the Company committed to provide up to $125,000 of subordinated notes and equity to STRS JV, with STRS Ohio providing up to $50,000 and the Company providing up to $75,000, respectively. In July 2019, STRS JV formally launched operations. STRS JV invests primarily in lower middle market, senior secured debt facilities, to performing lower middle market companies

across a broad range of industries that typically carry a floating interest index rate such as LIBOR or SOFR and have a term of three to six years.

In February 2022, the Company increased its capital commitment to the STRS JV in the amount of an additional $25,000, which brought the Company’s total capital commitment to $100,000, comprised of $80,000 of subordinated notes and $20,000 of LLC equity interests. In connection with this increase in the Company’s capital commitment, the Company and STRS Ohio’s amended economic ownership in the STRS JV was approximately 66.67% and 33.33%, respectively.

In February 2023, the Company increased its commitment to the STRS JV in the amount of an additional $15,000, which brings the Company’s total capital commitment to the STRS JV to $115,000, comprised of $92,000 of subordinated notes and $23,000 of LLC equity interests, and STRS Ohio increased its capital commitment to the STRS JV in the amount of an additional $10,000, which brings its total capital commitment to the STRS JV to $60,000, comprised of $48,000 of subordinated notes and $12,000 of LLC equity interests. In connection with these increases in capital commitments, the Company’s and STRS Ohio’s amended economic ownership in the STRS JV is approximately 65.71% and 34.29%, respectively.

As of June 30, 2023 and December 31, 2022, STRS JV had total assets of $343,531 and $305,296, respectively. STRS JV’s portfolio consisted of debt investments in 32 portfolio companies as of June 30, 2023 and 28 portfolio companies as of December 31, 2022. As of June 30, 2023 and December 31, 2022, the largest investment by aggregate principal amount (including any unfunded commitments) in a single portfolio company in STRS JV’s portfolio was $19,399 and $20,086, respectively. The five largest investments in portfolio companies by fair value in STRS JV totaled $82,846 and $77,635 as of June 30, 2023 and December 31, 2022, respectively. STRS JV invests in portfolio companies in the same industries in which the Company may directly invest.

The Company provides capital to STRS JV in the form of LLC equity interests and through interest-bearing subordinated notes. As of June 30, 2023, the Company and STRS Ohio owned approximately 65.71% and 34.29%, respectively, of the LLC equity interests of STRS JV. As of December 31, 2022, the Company and STRS Ohio owned 66.67% and 33.33%, respectively, of the LLC equity interests of STRS JV. The Company’s investment in STRS JV consisted of equity contributions of $20,368 and advances of the subordinated notes of $81,472 as of June 30, 2023 and December 31, 2022. As of June 30, 2023, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $23,000 and $92,000, respectively, of which $2,632 and $10,528 were unfunded, respectively. As of December 31, 2022, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $20,000 and $80,000, respectively, both of which were fully funded.

The Company and STRS Ohio each appoint two members to STRS JV’s four-person board of managers. All material decisions with respect to STRS JV, including those involving its investment portfolio, require unanimous approval of a quorum of the board of managers. Quorum is defined as (i) the presence of two members of the board of managers; provided that at least one individual is present that was elected, designated or appointed by each member; (ii) the presence of three members of the board of managers; provided that the individual that was elected, designated or appointed by the member with only one individual present shall be entitled to cast two votes on each matter; or (iii) the presence of four members of the board of managers; provided that two individuals are present that were elected, designated or appointed by each member.

On July 19, 2019, STRS JV entered into a $125,000 credit and security agreement (the “STRS JV Credit Facility”) with JPMorgan Chase Bank, National Association (“JPMorgan”). On January 27, 2021, the terms of the STRS JV Credit Facility were amended to, among other things, increase the size of the STRS JV Credit Facility from $125,000 to $175,000. On April 28, 2021, the terms of the STRS JV Credit Facility were amended and restated to, among other things, enable borrowings in British pounds or euros. On July 15, 2021, the terms of the STRS JV Credit Facility were amended to, among other things, allow STRS JV to reduce the applicable margins for interest rates to 2.35%, extend the non-call period from January 19, 2022 to January 19, 2023, extend the end of the reinvestment period from July 19, 2022 to July 19, 2023 and extend the scheduled termination date from July 19, 2024 to July 19, 2025.

On March 11, 2022, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) permanently increase STRS Credit’s availability under the STRS JV Credit Facility from $175,000 to $225,000, (ii) increase the minimum funding amount from $131,250 to $168,750, and (iii) apply an annual interest rate equal to the applicable SOFR plus 2.50% to borrowings greater than $175,000 in the STRS JV Credit Facility.

On January 13, 2023, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) permanently increase STRS Credit’s availability under the STRS JV Credit Facility from $225,000 to $262,500 (the “$37.5 Million Increase”) and (ii) apply an annual interest rate equal to applicable SOFR, plus 3.00% to any borrowings under the $37.5 Million Increase in the STRS JV Credit Facility. As a result of this amendment, any borrowings above $175,000 will incur an annual interest rate of SOFR plus 2.71% in the STRS JV Credit Facility.

On May 18, 2023, the terms of the STRS JV Credit Facility were further amended to, among other things, (i) effective June 6, 2023 apply an annual interest rate equal to applicable SOFR plus 2.72% to any USD borrowings (ii) extend the scheduled termination date from July 19, 2025 to July 19, 2026 (iii) extend the non-call period from January 19, 2023 to January 19, 2024 and (iv) extend the end of the reinvestment period from July 19, 2023 to July 19, 2024.

As of June 30, 2023, the STRS JV Credit Facility had $262,500 of commitments subject to leverage and borrowing base restrictions with an interest rate based on a floating index rate such as SOFR plus a spread of 2.72%, SONIA or CDOR plus a spread of 2.35%. The final maturity date of the STRS JV Credit Facility is July 19, 2026. As of June 30, 2023, STRS JV had $184,644 of outstanding borrowings and an interest rate outstanding of 7.6% per annum under the STRS JV Credit Facility.

As of December 31, 2022, the STRS JV Credit Facility had $225,000 of commitments subject to leverage and borrowing base restrictions with an interest rate based on a floating index rate such as LIBOR, SONIA or CDOR plus 2.35% for borrowings up to $175,000 and SOFR plus 2.50% for borrowings above $175,000. The final maturity date of the STRS JV Credit Facility is July 19, 2025. As of December 31, 2022, STRS JV had $152,277 of outstanding borrowings and an interest rate outstanding of 6.6% per annum under the STRS JV Credit Facility.

Below is a listing of STRS JV’s individual investments as of June 30, 2023:

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	9,146	$	9,020	$	8,918	28.00	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	5.75%	11.14%	03/11/22	12/15/26	3,070		3,027		2,993	9.40
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	—		—		(7)	(0.02)
										12,047		11,904	37.38
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	3,559		3,513		3,522	11.06
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	—		—		2	0.01
										3,513		3,524	11.07
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	13,285		13,118		13,285	41.71
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	—		—		19	0.06
										13,118		13,304	41.77
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	18,981		18,833		18,898	59.33
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	—		—		2	0.01
										18,833		18,900	59.34
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.14%	11/09/20	11/05/25	14,198		14,064		13,990	43.92
										14,064		13,990	43.92
Construction & Engineering
Pave America, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	4,035		3,924		3,953	12.41
Pave America, LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	—		—		(4)	(0.01)
Pave America, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.11%	03/17/23	02/07/28	251		244		247	0.78
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.80%	12.01%	12/31/19	03/18/25	10,861		10,743		10,692	33.57
										14,911		14,888	46.75
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	19,688		15,145		14,719	46.21
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	—		—		(2)	(0.01)
										15,145		14,717	46.20
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	11,769		11,708		11,567	36.32
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	468		465		454	1.43
										12,173		12,021	37.75

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Drug Retail
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.16%	04/11/23	03/01/29	5,078	$	4,934	$	4,935	15.49	%
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.93%	04/11/23	03/01/29	194		188		189	0.59
										5,122		5,124	16.08
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	13,398		13,243		13,184	41.39
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	—		—		(4)	(0.01)
										13,243		13,180	41.38
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/01/22	12/29/26	11,249		11,111		11,024	34.62
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.48%	03/01/22	12/29/26	1,896		1,872		1,854	5.82
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.30%	03/01/22	12/29/26	179		177		168	0.53
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Term Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	2,783		2,714		2,736	8.59
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(10)(13)(14)	First Lien Secured Term Loan	0.50%	CDOR	6.75%	12.13%	03/23/23	09/28/29	3,839		2,729		2,845	8.93
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Term Loan	0.00%	SONIA	6.75%	11.68%	03/23/23	09/28/29	169		204		211	0.66
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	365		355		359	1.13
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Delayed Draw Loan	0.00%	SONIA	6.75%	11.69%	03/23/23	09/28/29	535		652		657	2.06
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(12)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	—		—		—	—
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	7,432		7,381		7,432	23.33
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	—		—		3	0.01
										27,195		27,289	85.68
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.85%	05/04/22	04/28/28	6,608		6,843		7,043	22.11
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.39%	05/04/22	04/28/28	1,006		990		991	3.11
										7,833		8,034	25.22
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.37%	SOFR	6.42%	11.61%	02/18/22	02/01/27	12,285		12,068		12,074	37.91
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.44%	02/18/22	02/01/27	574		566		565	1.77
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/25/22	03/08/27	6,594		6,521		6,594	20.70
										19,155		19,233	60.38
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,867		2,846		2,867	9.00
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,394		2,386		2,394	7.52
										5,232		5,261	16.52

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
IT Consulting & Other Services
ATSG, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.72%	03/27/23	11/12/26	9,937	$	9,706	$	9,744	30.60	%
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	11.68% (11.43% Cash + 0.25% PIK)	07/16/21	05/04/26	2,830		3,862		3,484	10.94
Cennox, Inc. (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.50%	12.01% (11.76% Cash + 0.25% PIK)	06/28/22	05/04/26	9,434		9,836		10,120	31.77
Cennox Holdings Limited (d/b/a Cennox)(8)(11)	First lien Secured Revolving Loan	1.00%	Base Rate	6.13%	11.20% (10.95% Cash + 0.25% PIK)	07/16/21	05/04/26	864		1,179		1,064	3.34
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Term Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	6,263		6,084		6,085	19.11
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	—		—		—	—
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/28	—		—		—	—
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.64%	01/27/21	12/31/26	11,093		10,962		10,983	34.48
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	11.53%	01/27/21	12/31/26	2,991		2,954		2,962	9.30
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)(11)	First Lien Secured Revolving Loan	1.00%	Base Rate	6.25%	11.55%	01/27/21	12/31/26	533		527		530	1.66
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	6,057		5,980		5,983	18.78
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	—		—		—	—
										51,090		50,955	159.98
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70% (10.95% Cash + 0.75% PIK)	10/21/19	06/28/25	7,108		7,060		7,002	21.98
										7,060		7,002	21.98
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.(13)	First Lien Secured Term Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	6,622		6,506		6,502	20.41
Max Solutions, Inc.(6)(13)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	—		—		(21)	(0.07)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	7.66%	13.05%	10/07/22	09/29/28	—		—		—	—
										6,506		6,481	20.34
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.09%	10/21/19	08/13/25	5,730		5,664		5,715	17.94
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.03%	10/21/19	08/13/25	310		309		311	0.98
										5,973		6,026	18.92
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	9.21%	12/16/21	11/01/27	12,225		13,597		13,054	41.00
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.27%	12/16/21	11/01/27	976		961		959	3.01
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.34%	10/01/22	11/01/27	887		873		871	2.73
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.03%	12/16/21	11/01/27	754		742		737	2.31
										16,173		15,621	49.05
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.18%	12/28/21	10/19/26	9,604		9,477		9,399	29.51
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	5.97%	11.50%	02/18/22	10/19/26	2,410		2,376		2,346	7.37
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.13%	02/18/22	10/19/26	217		214		205	0.64
										12,067		11,950	37.52

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	03/01/22	01/21/27	7,946	$	7,832	$	7,146	22.44	%
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.69%	03/01/22	01/21/27	508		500		438	1.38
										8,332		7,584	23.82
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	07/15/21	06/23/27	8,820		8,746		8,736	27.43
										8,746		8,736	27.43
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	15,029		14,823		14,875	46.70
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	4,108		4,052		4,067	12.77
										18,875		18,942	59.47
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	9,929		9,813		9,834	30.88
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	—		—		1	—
										9,813		9,835	30.88
Total Investments									$	326,219	$	324,501	1,018.84	%

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	339	CAD	$	251	USD	8/4/23	$	—	$	(5)
Morgan Stanley	€	893	EUR	$	989	USD	8/4/23		13		—
Morgan Stanley	£	1,158	GBP	$	1,458	USD	8/4/23		—		(14)
Total								$	13	$	(19)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility and are domiciled in the United States.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, Euro Interbank Offered Rate (“EurIBOR” or “E”) which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of STRS JV’s portfolio company investments, which as of the date of the portfolio represented 1,019% of STRS JV’s members’ equity or 94% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, LIBOR, SOFR or CDOR and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

(12) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be U.S. dollars, Canadian dollars or British pounds.

(13) Investment is structured as a unitranche loan in which the Company may receive additional interest on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(14) The issuer is domiciled in the United Kingdom.

Below is a listing of STRS JV’s individual investments as of December 31, 2022:

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
North America
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	LIBOR	5.75%	10.48%	02/18/22	12/15/26	9,193	$	9,047	$	9,007	29.79	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	5.75%	10.43%	03/11/22	12/15/26	2,756		2,713		2,699	8.93
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.75%	10.43%	02/18/22	12/15/26	—		—		(3)	—
										11,760		11,703	38.71
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	3,577		3,523		3,542	11.71
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	—		—		3	0.01
										3,523		3,545	11.72
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	13,353		13,162		13,353	44.16
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	—		—		22	0.07
										13,162		13,375	44.23
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	19,105		18,920		19,105	63.18
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	—		—		8	0.03
										18,920		19,113	63.21
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.48%	11/09/20	11/05/25	14,270		14,105		14,132	46.73
										14,105		14,132	46.73
Construction & Engineering
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	12/31/19	03/18/25	8,603		8,522		8,432	27.88
										8,522		8,432	27.88
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	20,088		15,413		14,545	48.10
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	—		—		(9)	(0.03)
										15,413		14,536	48.07
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	11,805		11,728		11,298	37.36
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	468		464		431	1.43
										12,192		11,729	38.79
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	13,466		13,284		13,193	43.63
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	—		—		(6)	(0.02)
										13,284		13,187	43.61

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	11.15%	03/01/22	12/29/26	11,306	$	11,147	$	11,079	36.64	%
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.00%	11.14%	03/01/22	12/29/26	1,909		1,882		1,868	6.18
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.54%	03/01/22	12/29/26	298		294		287	0.95
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	7,470		7,402		7,470	24.70
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	—		—		4	0.01
										20,725		20,708	68.48
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.00%	05/04/22	04/28/28	6,642		6,865		6,899	22.81
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.04%	05/04/22	04/28/28	1,012		994		986	3.26
										7,859		7,885	26.08
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.25%	SOFR	6.25%	10.49%	02/18/22	02/01/27	8,188		8,054		7,939	26.25
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	10.67%	02/18/22	02/01/27	274		270		259	0.86
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.09%	03/25/22	03/08/27	6,907		6,821		6,801	22.49
										15,145		14,999	49.60
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	3,077		3,049		3,077	10.18
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	2,468		2,458		2,468	8.16
										5,507		5,545	18.34
IT Consulting & Other Services
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.00%	10.02%	07/16/21	05/04/26	2,837		3,863		3,343	11.06
Cennox Holdings Limited (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	10.99%	06/28/22	05/04/26	9,458		9,834		9,926	32.82
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.99%	07/16/21	05/04/26	—		—		(161)	(0.53)
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.98%	01/27/21	12/31/26	11,150		11,000		10,929	36.14
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	10.65%	01/27/21	12/31/26	3,007		2,963		2,947	9.75
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.60%	01/27/21	12/31/26	533		526		517	1.71
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	6,087		5,998		5,964	19.72
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	—		—		(4)	(0.01)
										34,184		33,461	110.66
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	7.25%	11.67% (10.17% Cash + 1.50% PIK)	10/21/19	06/28/25	7,162		7,101		7,011	23.18
Stella & Chewy's LLC	First Lien Secured Term Loan	1.00%	SOFR	8.75%	13.40% (11.40% Cash + 2.00% PIK)	12/29/20	12/16/25	3,893		3,849		3,738	12.36
Stella & Chewy's LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	8.75%	13.17% (11.17% Cash + 2.00% PIK)	03/26/21	12/16/25	1,375		1,362		1,320	4.37
										12,312		12,069	39.91

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	8,244	$	8,085	$	8,085	26.74	%
Max Solutions, Inc.(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		(26)	(0.09)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
Max Solutions, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
										8,085		8,059	26.65
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	10/21/19	08/13/25	3,679		3,631		3,679	12.18
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.24%	10/21/19	08/13/25	266		264		270	0.89
										3,895		3,949	13.06
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	8.17%	12/16/21	11/01/27	12,287		13,643		12,876	42.57
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	10.62%	12/16/21	11/01/27	981		966		963	3.18
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	10.81%	10/01/22	11/01/27	892		878		876	2.90
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	10.81%	12/16/21	11/01/27	—		—		(3)	(0.01)
										15,487		14,712	48.65
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.48%	12/28/21	10/19/26	9,653		9,505		9,412	31.13
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	6.10%	10.92%	02/18/22	10/19/26	1,768		1,741		1,720	5.69
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.48%	02/18/22	10/19/26	—		—		(11)	(0.04)
										11,246		11,121	36.78
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	8,924		8,778		8,301	27.45
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	290		285		247	0.82
										9,063		8,548	28.27
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	LIBOR	5.50%	10.23%	07/15/21	06/23/27	8,865		8,782		8,686	28.72
										8,782		8,686	28.72
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	15,105		14,874		14,882	49.21
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	—		—		2	0.01
										14,874		14,884	49.22
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	10,033		9,895		9,882	32.68
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	—		—		(1)	(0.00)
										9,895		9,881	32.68
Total Investments									$	287,940	$	284,259	940.05	%

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	256	CAD	$	189	USD	1/27/23	$	—	$	—
Morgan Stanley	€	1111	EUR	$	1,128	USD	1/27/23		—		(64)
Morgan Stanley	£	229	GBP	$	266	USD	1/27/23		—		(11)
Total								$	—	$	(75)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, EurIBOR which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of the STRS JV’s portfolio company investments, which as of the date of the portfolio represented 940% of STRS JV’s members’ equity or 93% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, L and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

As of June 30, 2023 and December 31, 2022, the portfolio companies underlying the STRS JV investments are all located in the United States and its territories except for Geo Logic Systems Ltd., which is domiciled in Canada, and Cennox Holdings Limited and Solar Holdings Bidco Limited, which are domiciled in the United Kingdom. As of June 30, 2023 and December 31, 2022, STRS JV had no investments on non-accrual status. STRS JV had outstanding commitments to fund investments totaling $22,703, and $24,549 under delayed draw term loan commitments and undrawn revolvers as of June 30, 2023 and December 31, 2022, respectively.

Below is certain summarized financial information for STRS JV as of June 30, 2023 and December 31, 2022 and for the three and six months ended June 30, 2023 and 2022:

Selected Balance Sheet Information ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Assets
Investments, at fair value (amortized cost of $326,219 and $287,940, respectively)	$	324,501	$	284,259
Cash and cash equivalents		17,002		18,960
Interest receivable		1,855		1,404
Other assets		173		673
Total assets	$	343,531	$	305,296
Liabilities
Credit facility (net of unamortized debt issuance costs of $2,178 and $1,643, respectively)	$	182,466	$	150,634
Note payable to members		123,979		120,000
Interest payable on credit facility		1,060		796
Interest payable on notes to members		3,542		3,069
Unrealized depreciation on foreign currency forward contracts		6		75
Other liabilities		632		483
Total liabilities		311,685		275,057
Members’ equity		31,846		30,239
Total liabilities and members’ equity	$	343,531	$	305,296

	Three Months Ended				Six Months Ended
Selected Statement of Operations Information ($ in thousands)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Interest and fee income	$	9,757	$	7,216	$	18,452	$	13,127
Total investment income	$	9,757	$	7,216	$	18,452	$	13,127
Interest expense on credit facility		3,671		1,645		6,667		2,885
Interest expense on notes to members		3,542		2,189		6,870		3,981
Administrative fee		165		165		320		314
Other expenses		151		150		350		385
Total expenses	$	7,529	$	4,149	$	14,207	$	7,565
Net investment income		2,228		3,067		4,245		5,562
Net realized gains (losses) on investments and foreign currency transactions		28		41		87		120
Net change in unrealized appreciation (depreciation) on investments and foreign currency transactions		136		1,640		706		1,592
Net increase in members’ equity resulting from operations	$	2,392	$	4,748	$	5,038	$	7,274

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FAIR VALUE MEASUREMENTS

6 Months Ended

Jun. 30, 2023

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS

NOTE 5 – FAIR VALUE MEASUREMENTS

Accounting standards establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The standard describes three levels of inputs that may be used to measure fair value:

Level 1: Quoted prices (unadjusted) for identical assets or liabilities in active public markets that the entity has the ability to access as of the measurement date.

Level 2: Significant other observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data.

Level 3: Significant unobservable inputs that reflect a reporting entity’s own assumptions about what market participants would use in pricing an asset or liability.

In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, a financial instrument’s categorization within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the financial instrument.

A review of the fair value hierarchy classifications is conducted on a quarterly basis. Changes in the observability of valuation inputs may result in a reclassification for certain financial assets or liabilities. Reclassifications impacting Level 3 of the fair value hierarchy are reported as transfers in or out of the Level 3 category as of the beginning of the quarter in which the reclassifications occur. During the six months ended June 30, 2023 and year ended December 31, 2022, there were no changes in the observability of valuation inputs that would have resulted in a reclassification of assets between any levels.

Fair value for each investment is derived using a combination of valuation methodologies that, in the judgment of the Investment Committee are most relevant to such investment, including, without limitation, being based on one or more of the following: (i) market prices obtained from market makers for which the Investment Committee has deemed there to be enough breadth (number of quotes) and depth (firm bids) to be indicative of fair value, (ii) the price paid or realized in a completed transaction or binding offer received in an arm’s-length transaction, (iii) a discounted cash flow analysis, (iv) the guideline public company method, (v) the similar transaction method or (vi) the option pricing method.

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of June 30, 2023:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	592,900	$	592,900
Second lien secured loans		—		—		17,132		17,132
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		81,472		81,472
Equity (excluding STRS JV)		—		—		15,752		15,752
Equity in STRS JV(1)		—		—		—		20,929
Total investments	$	—	$	—	$	707,423	$	728,352

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

The Company’s forward currency contracts, which were valued at ($9) as of June 30, 2023, are characterized in Level 2 of the hierarchy.

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of December 31, 2022:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	618,267	$	618,267
Second lien secured loans		—		—		20,634		20,634
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		80,000		80,000
Equity (excluding STRS JV)		—		—		21,000		21,000
Equity in STRS JV(1)		—		—		—		20,160
Total investments	$	—	$	—	$	740,068	$	760,228

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

The Company’s forward currency contracts, which were valued at ($3) as of December 31, 2022, are characterized in Level 2 of the hierarchy.

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2023:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	608,477	$	19,773	$	167	$	80,000	$	20,493	$	728,910
Funding of investments		27,136		—		—		1,472		782		29,390
Non-cash interest income		1,687		—		—		—		—		1,687
Accretion of discount		947		22		—		—		—		969
Proceeds from paydowns and sales		(40,384)		—		—		—		(6,605)		(46,989)
Conversions		(3,892)		—		—		—		3,892		—
Realized gains (losses)		(5)		—		—		—		(339)		(344)
Net unrealized appreciation (depreciation)		(1,066)		(2,663)		—		—		(2,471)		(6,200)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(1,986)	$	(2,663)	$	—	$	—	$	(3,281)	$	(7,930)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	618,267	$	20,634	$	167	$	80,000	$	21,000	$	740,068
Funding of investments		64,474		—		—		1,472		783		66,729
Non-cash interest income		3,668		—		—		—		—		3,668
Accretion of discount (premium)		2,027		43		—		—		—		2,070
Proceeds from paydowns and sales		(88,196)		—		—		—		(6,605)		(94,801)
Conversions		(4,537)		—		—		—		4,537		—
Realized gains (losses)		(100)		—		—		—		(339)		(439)
Net unrealized appreciation (depreciation)		(2,703)		(3,545)		—		—		(3,624)		(9,872)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(3,638)	$	(3,545)	$	—	$	—	$	(4,188)	$	(11,371)

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2022:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	648,770	$	23,780	$	167	$	80,000	$	26,878	$	779,595
Funding of investments		66,851		—		—		—		10		66,861
Non-cash interest income		422		2		—		—		—		424
Accretion of discount		1,609		22		—		—		—		1,631
Proceeds from paydowns and sales		(99,505)		—		—		—		(1,741)		(101,246)
Conversions		—		—		—		—		—		—
Realized gains (losses)		145		—		—		—		1,741		1,886
Net unrealized appreciation (depreciation)		(3,433)		(1,741)		—		—		223		(4,951)
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(2,719)	$	(1,741)	$	—	$	—	$	222	$	(4,238)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	697,232	$	23,650	$	167	$	60,000	$	22,552	$	803,601
Funding of investments		169,774		—		—		20,000		677		190,451
Non-cash interest income		954		2		—		—		—		956
Accretion of discount (premium)		2,933		43		—		—		—		2,976
Proceeds from paydowns and sales		(245,386)		—		—		—		(1,851)		(247,237)
Conversions		(4,060)		—		—		—		4,060		—
Realized gains (losses)		(17,039)		(1,024)		—		—		1,765		(16,298)
Net unrealized appreciation (depreciation)		10,451		(608)		—		—		(92)		9,751
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(1,983)	$	(1,634)	$	—	$	—	$	(93)	$	(3,710)

The significant unobservable inputs used in the fair value measurement of the Company’s investments are the discount rate, market quotes and exit multiples. An increase or decrease in the discount rate in isolation would result in significantly lower or higher fair value measurement, respectively. An increase or decrease in the market quote for an investment would in isolation result in significantly higher or lower fair value measurement, respectively. An increase or decrease in the exit multiple would in isolation result in significantly higher or lower fair value measurement, respectively. As the fair value of a debt investment diverges from par, which would generally be the case for non-accrual loans, the fair value measurement of that investment is more susceptible to volatility from changes in exit multiples as a significant unobservable input.

The following tables summarize the significant unobservable inputs the Company used to value the majority of its investments categorized within Level 3 as of June 30, 2023 and December 31, 2022. The tables are not intended to be all-inclusive, but instead capture the significant unobservable inputs relevant to the Company’s determination of fair values. These ranges represent the significant unobservable inputs that were used in the valuation of each type of investment, but they do not represent a range of values for any one investment.

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		June 30, 2023	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	561,179	Discounted cash flow analysis	Discount rate	10.0% - 21.6% (13.3%)
		13,343	Recent transaction	Transaction price	97.0 - 97.1 (97.0)
		2,396	Enterprise value analysis	EBITDA multiple	6.9 - 6.9 (6.9)
		15,982	Expected repayment	Transaction price	100.0 - 100.0 (100.0)
Second lien secured loans		17,132	Discounted cash flow analysis	Discount rate	12.9% - 35.0% (19.6%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.1% - 4.1% (4.1%)
Subordinated Notes to STRS JV		81,472	Enterprise value analysis	n/a	n/a
Common equity		3,262	Discounted cash flow analysis	Discount rate	17.4% - 25.7% (21.7%)
		6,022	Enterprise value analysis	EBITDA multiple	6.0 - 11.2 (7.9)
		647	Recent transaction	Transaction price	1.0 - 1,000.0 (485.5)
Preferred equity		731	Discounted cash flow analysis	Discount rate	21.0% - 25.7% (21.0%)
		1,693	Enterprise value analysis	EBITDA multiple	6.0 - 10.7 (7.0)
Warrant		3,397	Discounted cash flow analysis	Discount rate	30.2% - 30.2% (30.2%)
Total Level 3 Investments	$	707,423

(1) Unobservable inputs were weighted by the relative fair value of the investments.

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		December 31, 2022	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	536,259	Discounted cash flow analysis	Discount rate	10.0% - 30.0% (13.8%)
		67,878	Recent transaction	Transaction price	83.1 - 100.0 (95.0)
		14,130	Expected repayment	Transaction price	100.0 - 101.0 (100.5)
Second lien secured loans		20,634	Discounted cash flow analysis	Discount rate	13.2% - 25.0% (18.9%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.0% - 4.0% (4.0%)
Subordinated Notes to STRS JV		80,000	Enterprise value analysis	n/a	n/a
Common equity		9,990	Discounted cash flow analysis	Discount rate	15.6% - 25.9% (22.4%)
		4,735	Enterprise value analysis	EBITDA multiple	5.0 - 11.8 (8.3)
		400	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Preferred equity		714	Discounted cash flow analysis	Discount rate	20.0% - 22.5% (20.0%)
		194	Enterprise value analysis	EBITDA multiple	8.0 - 9.5 (8.6)
		926	Enterprise value analysis	Revenue multiple	0.5 - 0.5 (0.5)
		200	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Warrant		3,841	Discounted cash flow analysis	Discount rate	25.9% - 27.2% (27.2%)
Total Level 3 Investments	$	740,068

(1) Unobservable inputs were weighted by the relative fair value of the investments.

Valuation of investments may be determined by weighting various valuation techniques. Significant judgment is required in selecting the assumptions used to determine the fair values of these investments. The valuation methods selected for a particular investment are based on the circumstances and on the sufficiency of data available to measure fair value. If more than one valuation method is used to measure fair value, the results are evaluated and weighted, as appropriate, considering the reasonableness of the range indicated by those results. A fair value measurement is the point within that range that is most representative of fair value in the circumstances.

The availability of observable inputs can vary depending on the financial instrument and is affected by a wide variety of factors, including, for example, the nature of the instrument, whether the instrument is traded on an active exchange or in the secondary market and the current market conditions. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires a greater degree of judgment. Accordingly, the degree of judgment exercised by the Company in determining fair value is greatest for financial instruments classified as Level 3.

The determination of fair value using the selected methodologies takes into consideration a range of factors including the price at which the investment was acquired, the nature of the investment, local market conditions, trading values on public and private exchanges for comparable securities, current and projected operating performance and financing transactions subsequent to the acquisition of the investment, compliance with agreed upon terms and covenants, and assessment of credit ratings of an underlying borrower. These valuation methodologies involve a significant degree of judgment to be exercised.

As it relates to investments which do not have an active public market, there is no single standard for determining the estimated fair value. Valuations of privately held investments are inherently uncertain, and they may fluctuate over short periods of time and may be based on estimates. The determination of fair value may differ materially from the values that would have been used if a ready market for these investments existed.

In some cases, fair value for such investments is best expressed as a range of values derived utilizing different methodologies from which a single estimate may then be determined. Consequently, fair value for each investment may be derived using a combination of valuation methodologies that, in the judgment of the investment professionals, are most relevant to such investment. The selected valuation methodologies for a particular investment are consistently applied on each measurement date. However, a change in a valuation methodology or its application from one measurement date to another is possible if the change results in a measurement that is equally or more representative of fair value in the circumstances.

The following table presents the principal amount and fair value of the Company’s borrowings as of June 30, 2023 and December 31, 2022 . The fair value of the Credit Facility (as defined in Note 6) was estimated by discounting remaining payments using applicable market rates or market quotes for similar instruments at the measurement date, if available. As of June 30, 2023, the Credit Facility approximates its carrying value presented net of unamortized debt issuance costs and original issuance discount, net of accretion. The fair value of the Company’s 6.00% private notes due 2023 (the “6.000% 2023 Notes”), the 5.375% private notes due 2025 (the “5.375% 2025 Notes”), the 5.375% private notes due 2026 (the “5.375% 2026 Notes”), the 4.00% notes due 2026 (the “4.000% 2026 Notes”), the 5.625% private notes due 2027 (the “5.625% 2027 Notes”), and the 4.25% private notes due 2028 (the “4.250% 2028 Notes”) were estimated using discounted future cash flows to the valuation date.

		As of June 30, 2023				As of December 31, 2022
	Fair
	Value Level	Principal Amount Outstanding		Fair Value		Principal Amount Outstanding		Fair Value
JPM Credit Facility	3	$	238,649	$	236,705	$	255,145	$	252,799
6.000% 2023 Notes	3		30,000		29,931		30,000		30,382
5.375% 2025 Notes	3		40,000		37,169		40,000		37,474
5.375% 2026 Notes	3		10,000		9,133		10,000		9,149
4.000% 2026 Notes	3		75,000		68,015		75,000		67,912
5.625% 2027 Notes	3		10,000		9,034		10,000		9,063
4.250% 2028 Notes	3		25,000		21,719		25,000		21,981
		$	428,649	$	411,706	$	445,145	$	428,760

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BORROWINGS

6 Months Ended

Jun. 30, 2023

BORROWINGS

BORROWINGS

NOTE 6 – BORROWINGS

Historically, the 1940 Act has permitted the Company to issue “senior securities,” including borrowing money from banks or other financial institutions, only in amounts such that its asset coverage, as defined in the 1940 Act, equals at least 200% after such incurrence or issuance. In March 2018, the Small Business Credit Availability Act (the “SBCAA”) was enacted into law. The SBCAA, among other things, amended the 1940 Act to reduce the asset coverage requirements applicable to business development companies from 200% to 150% so long as the business development company meets certain disclosure requirements and obtains certain approvals. At the Company’s annual meeting of stockholders held on August 1, 2018, the Company’s stockholders approved the reduced asset coverage ratio from 200% to 150%, such that the Company’s maximum debt-to-equity ratio increased from a prior maximum of 1.0x (equivalent of $1 of debt outstanding for each $1 of equity) to a maximum of 2.0x (equivalent to $2 of debt outstanding for each $1 of equity). As a result, the Company’s asset coverage requirements applicable to senior securities decreased from 200% to

150%, effective August 2, 2018. As of June 30, 2023 and December 31, 2022, the Company’s asset coverage for borrowed amounts was 175.9% and 174.7%, respectively.

Total borrowings outstanding and available as of June 30, 2023, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)	11/22/2025	S+2.500	%	$	238,649	$	236,705	$	96,351
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,981		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,695		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,900		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,822		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,889		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,719		—
Total debt				$	428,649	$	424,711	$	96,351

(1) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

Total borrowings outstanding and available as of December 31, 2022, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)(2)	11/22/2025	L+2.350	%	$	255,145	$	252,799	$	79,855
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,893		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,629		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,885		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,652		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,876		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,693		—
Total debt				$	445,145	$	440,427	$	79,855

(1) The JPM Credit Facility bears interest at LIBOR plus 2.35% on outstanding USD denominated borrowings up to $285,000 and for borrowings above $285,000, a rate of SOFR plus 2.50% is applied.

(2) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

Credit Facility: On December 23, 2015, WhiteHorse Credit entered into a revolving credit and security agreement with JPMorgan, as administrative agent and lender.

On April 28, 2021, the terms of the Credit Facility were amended and restated to, among other things, enable WhiteHorse Credit to borrow in British Pounds or Euros.

On July 15, 2021, the terms of the Credit Facility were amended to, among other things, allow WhiteHorse Credit to reduce the applicable margins for interest rates to 2.35%, extend the non-call period from November 22, 2021 to November 22, 2022, extend the end of the reinvestment period from November 22, 2023 to November 22, 2024 and extend the scheduled termination date from November 22, 2024 to November 22, 2025.

On October 4, 2021, the terms of the Credit Facility were amended to, among other things, established a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335,000 for a three-month period beginning on October 4, 2021.

On January 4, 2022, the terms of the Credit Facility were amended to, among other things, continue to establish a temporary upsize to the borrowing capacity under the Credit Facility, which allowed WhiteHorse Credit to borrow up to $335,000 for a four-month period that originally began on October 4, 2021.

On February 4, 2022, the terms of the Credit Facility were further amended to, among other things (i) increase WhiteHorse Credit’s availability under the Credit Facility from $285,000 to $310,000 (the “$25,000 Increase”), (ii) increase the minimum funding amount from $200,000 to $217,000, (iii) extend an additional temporary increase of $25,000 in availability under the Credit Facility, allowing WhiteHorse Credit to borrow up to $335,000 through April 4, 2022 (the “$25,000 Temporary Increase”), and (iv) apply an annual interest rate equal to applicable SOFR plus 2.50% to any borrowings under the $25,000 Increase in the Credit Facility and the $25,000 Temporary Increase in availability under the Credit Facility.

On March 30, 2022, the terms of the Credit Facility were further amended to, among other things: (i) increase WhiteHorse Credit’s availability under the Credit Facility from $310,000 to $335,000; (ii) retain an accordion feature which allows for the expansion of the borrowing limit up to $375,000; and (iii) increase the minimum funding amount from $217,000 to $234,500.

On April 12, 2023, the terms of the Credit Facility were further amended to, among other things, (i) apply an annual interest rate equal to the applicable base rate plus 2.50% to any USD denominated borrowings, and (ii) convert to SOFR for USD denominated borrowings effective June 6, 2023.

The Credit Facility bears interest at SOFR plus 2.50% on all outstanding USD denominated borrowings. The Credit Facility bears interest at EURIBOR for EUR denominated borrowings, CDOR for CAD denominated borrowings, SONIA for GBP denominated borrowings, plus, in each case, a spread of 2.35% on outstanding borrowings. The Company is required to pay a non-usage fee which accrues at 0.75% per annum on the average daily unused amount of the financing commitments to the extent the aggregate principal amount available under the Credit Facility has not been borrowed. The minimum borrowing requirement is $234,500. In connection with the Credit Facility, WhiteHorse Credit pledged securities with a fair value of approximately $599,952 as of June 30, 2023. The Credit Facility has a maturity date of November 22, 2025.

Under the Credit Facility, the Company has made certain customary representations and warranties and is required to comply with various covenants, including leverage restrictions, reporting requirements and other customary requirements for similar credit facilities. As of June 30, 2023, the Company had $238,649 in outstanding borrowings and $96,351 undrawn under the Credit Facility. Weighted average outstanding borrowings were $236,661 and $251,195 at a weighted average interest rate of 7.52% and 7.34% for the three and six months ended June 30, 2023, respectively. As of June 30, 2023, the interest rate in effect on outstanding borrowings was 7.74%. The Company’s ability to draw down undrawn funds under the Credit Facility is determined by collateral and portfolio quality requirements stipulated in the credit and security agreement. As of June 30, 2023, $96,351 was available to be drawn by the Company based on these requirements.

As of December 31, 2022, the Company had $255,145 in outstanding borrowings and $79,855 undrawn under the Credit Facility. As of December 31, 2022, weighted average outstanding borrowings were $264,411 at a weighted average interest rate of 4.04%. As of December 31, 2022, the interest rate in effect on outstanding borrowings was 7.11%. The Company’s ability to draw down undrawn funds under the Credit Facility is determined by collateral and portfolio quality requirements stipulated in the credit and security agreement. As of December 31, 2022, $79,855 was available to be drawn by the Company based on these requirements.

6.000% 2023 Notes: On July 13, 2018, the Company entered into an agreement (the “2023 Note Purchase Agreement”) to sell in a private offering $30,000 aggregate principal amount of senior unsecured notes to qualified institutional investors in reliance on Section 4(a)(2) of the Securities Act of 1933, as amended. Interest on the 6.000% 2023 Notes is payable semiannually on February 7 and August 7, at a fixed, annual rate of 6.00%. This interest rate is subject to increase (up to 6.50%) in the event that, subject to certain exceptions, the 6.000% 2023 Notes cease to have an investment grade rating. The 6.000% 2023 Notes mature on August 7, 2023, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. The 6.000% 2023 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The closing of the transaction occurred on August 7, 2018. The Company used the net proceeds from this offering, together with cash on hand, to redeem existing debt.

5.375% 2025 Notes: On October 20, 2020, the Company entered into a Note Purchase Agreement (the “2025 Note Purchase Agreement”) governing the issuance of $40,000 in aggregate principal amount of unsecured notes (the “5.375% 2025 Notes”) to qualified institutional investors in a private placement. The 5.375% 2025 Notes have a fixed interest rate of 5.375% and are due on October 20, 2025, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.375% 2025 Notes is payable semiannually on April 20 and October 20, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2025 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.375% 2025 Notes at par if certain change in control events occur. The 5.375% 2025 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

5.375% 2026 Notes: On December 4, 2020, the Company entered into a Note Purchase Agreement (the “2026 Note Purchase Agreement”) governing the issuance of $10,000 in aggregate principal amount of unsecured notes (the “5.375% 2026 Notes”) to qualified institutional investors in a private placement. The 5.375% 2026 Notes have a fixed interest rate of 5.375% and are due on December 4, 2026, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.375% 2026 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.375%. This interest rate is subject to increase (up to 6.375%) in the event that, subject to certain exceptions, the 5.375% 2026 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.375% 2026 Notes at par if certain change in control events occur. The 5.375% 2026 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

4.000% 2026 Notes: On November 24, 2021, the Company completed a public offering of $75,000 of aggregate principal amount of unsecured notes, the net proceeds of which were used to fund investments in debt and equity securities and repay outstanding indebtedness under the Credit Facility. Interest on the 4.000% 2026 Notes is payable semiannually on June 15 and December 15, at a fixed, annual rate of 4.000%. The 4.000% 2026 Notes will mature on December 15, 2026 and may be redeemed in whole or in part at any time prior to September 15, 2026, at par plus a “make-whole” premium, and thereafter at par. The 4.000% 2026 Notes will rank equally in right of payment with the other outstanding and future unsecured, unsubordinated indebtedness, including the 6.000% 2023 Notes, the 5.375% 2025 Notes, the 5.375% 2026 Notes, the 5.625% 2027 Notes and the 4.250% 2028 Notes.

5.625% 2027 Notes: On December 4, 2020, the Company entered into a Note Purchase Agreement (the “2027 Note Purchase Agreement”) governing the issuance of $10,000 in aggregate principal amount of unsecured notes (the “5.625% 2027 Notes”) to qualified institutional investors in a private placement. The 5.625% 2027 Notes have a fixed interest rate of 5.625% and are due on December 4, 2027, unless redeemed, purchased or prepaid prior to such date by the Company or its affiliates in accordance with their terms. Interest on the 5.625% 2027 Notes is payable semiannually on June 4 and December 4, at a fixed, annual rate of 5.625%. This interest rate is subject to increase (up to 6.625%) in the event that, subject to certain exceptions, the 5.625% 2027 Notes cease to have an investment grade rating. In addition, the Company is obligated to offer to repay the 5.625% 2027 Notes at par if certain change in control events occur. The 5.625% 2027 Notes are general unsecured obligations of the Company that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness issued by the Company. The Company used the net proceeds from this offering to redeem existing debt.

4.250% 2028 Notes: On December 6, 2021, the Company entered into a Note Purchase Agreement (the “2028 Note Purchase Agreement,”) governing the issuance of $25,000 in aggregate principal amount of unsecured notes (the “4.25% 2028 Notes”) to qualified institutional investors in a private placement. Interest on the 4.250% 2028 Notes is payable semiannually on June 6 and December 6, at a fixed, annual rate of 4.25%. This interest rate is subject to increase (up to 5.25%) in the event that, subject to certain exceptions, the 4.250% 2028 Notes cease to have an investment grade rating. The 4.250% 2028 Notes mature on December 6, 2028, unless redeemed, purchased or prepaid prior to such date by us or our affiliates in accordance with their terms. The 4.250% 2028 Notes are general unsecured obligations that rank pari passu with all outstanding and future unsecured unsubordinated indebtedness that we may issue. The closing of the transaction occurred on December 6, 2021. The Company used the net proceeds from this offering to redeem existing debt.

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RELATED PARTY TRANSACTIONS

6 Months Ended

Jun. 30, 2023

RELATED PARTY TRANSACTIONS

RELATED PARTY TRANSACTIONS

NOTE 7 - RELATED PARTY TRANSACTIONS

Investment Advisory Agreement: WhiteHorse Advisers serves as the Company’s investment adviser in accordance with the terms of an investment advisory agreement. On November 1, 2018, at an in-person meeting, the Company’s board of directors approved an amended and restated investment advisory agreement (the “Investment Advisory Agreement”). The Company’s board of directors most recently re-approved the Investment Advisory Agreement on February 23, 2023. Subject to the overall supervision of the Company’s board of directors, WhiteHorse Advisers manages the day-to-day operations of, and provides investment management services to, the Company. Under the terms of the Investment Advisory Agreement, WhiteHorse Advisers:

● determines the composition of the investment portfolio, the nature and timing of the changes to the portfolio and the manner of implementing such changes;

● identifies, evaluates and negotiates the structure of the investments the Company makes (including performing due diligence on the Company’s prospective portfolio companies); and

● closes, monitors and administers the investments the Company makes, including the exercise of any voting or consent rights.

In addition, WhiteHorse Advisers provides the Company with access to personnel and an Investment Committee. Under the Investment Advisory Agreement, the Company pays WhiteHorse Advisers a fee for investment management services consisting of a base management fee and an incentive fee. The Investment Advisory Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party.

Base Management Fee

The base management fee is calculated at an annual rate equal to 2.0% based on the Company’s consolidated gross assets (including cash and cash equivalents and assets purchased with borrowed funds); provided, however, the base management fee will be calculated at an annual rate equal to 1.25% of the Company’s consolidated gross assets (including cash and cash equivalents and assets purchased with borrowed funds), that exceed the product of (i) 200% and (ii) the value of the Company’s total net assets, at the end of the two most recently completed calendar quarters. Base management fees are payable quarterly in arrears and are appropriately pro-rated for any partial month or quarter.

The following table details our management fee expenses for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Management Fee ($ in thousands)		2023		2022		2023		2022
Base management fee	$	3,705	$	3,908	$	7,416	$	7,859
Total management fees	$	3,705	$	3,908	$	7,416	$	7,859

As of June 30, 2023 and December 31, 2022, management fees payable on the consolidated statements of assets and liabilities were $3,705 and $3,860, respectively.

Performance-based Incentive Fee

The performance-based incentive fee consists of two components that are independent of each other, except as provided by the Incentive Fee Cap and Deferral Mechanism discussed below.

The calculations of these two components have been structured to include a fee limitation such that no incentive fee will be paid to the investment adviser for any quarter if, after such payment, the cumulative incentive fees paid to the investment adviser for the period that includes the current fiscal quarter and the 11 full preceding fiscal quarters, referred to as the “Incentive Fee Look-back Period,” would exceed 20.0% of the Cumulative Pre-Incentive Fee Net Return (as defined below) during the Incentive Fee Look-back Period.

Each quarterly incentive fee is subject to the Incentive Fee Cap (as defined below) and a deferral mechanism through which the investment adviser may recap a portion of such deferred incentive fees, which is referred to together as the “Incentive Fee Cap and Deferral Mechanism.”

This limitation is accomplished by subjecting each incentive fee payable to a cap, which is referred to as the “Incentive Fee Cap.” The Incentive Fee Cap in any quarter is equal to (a) 20.0% of Cumulative Pre-Incentive Fee Net Return during the Incentive Fee Look-back Period less (b) cumulative incentive fees of any kind paid to the investment adviser during the Incentive Fee Look-back Period. To the extent the Incentive Fee Cap is zero or a negative value in any quarter, the Company will pay no incentive fee to its investment adviser in that quarter. The Company will only pay incentive fees to the extent allowed by the Incentive Fee Cap and Deferral Mechanism. To the extent that the payment of incentive fees is limited by the Incentive Fee Cap and Deferral Mechanism, the payment of such fees may be deferred and paid in subsequent quarters up to three years after their date of deferment, subject to applicable limitations included in the Investment Advisory Agreement. The deferral component of the Incentive Fee Cap and Deferral Mechanism may cause incentive fees that accrued during one fiscal quarter to be paid to the investment adviser at any time during the 11 full fiscal quarters following such initial full fiscal quarter.

The “Cumulative Pre-Incentive Fee Net Return” refers to the sum of (a) Pre-Incentive Fee Net Investment Income (as defined below) for each period during the Incentive Fee Look-back Period and (b) the sum of cumulative realized capital gains, cumulative realized capital losses, cumulative unrealized capital depreciation and cumulative unrealized capital appreciation during the applicable Incentive Fee Look-back Period.

The first component, which is income-based (the “Income Incentive Fee”), is calculated and payable quarterly in arrears and is determined based on Pre-Incentive Fee Net Investment Income for the immediately preceding calendar quarter, subject to the Incentive Fee Cap and Deferral Mechanism. For this purpose, “Pre-Incentive Fee Net Investment Income” means, in each case on a consolidated basis, interest income, distribution income and any other income (including any other fees (other than fees for providing managerial assistance), such as commitment, origination, structuring, diligence and consulting fees or other fees received from portfolio companies) accrued during the calendar quarter, minus the Company’s operating expenses for the quarter (including the base management fee, expenses payable under the administration agreement (the “Administration Agreement”), any interest expense and any dividends paid on any issued and outstanding preferred stock, but excluding the incentive fee). Pre-Incentive Fee Net Investment Income does not include any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation.

The operation of the first component of the incentive fee for each quarter is as follows:

● no incentive fee is payable to the Company’s investment adviser in any calendar quarter in which Pre-Incentive Fee Net Investment Income does not exceed the “Hurdle Rate” of 1.75% (7.00% annualized);

● 100% of Pre-Incentive Fee Net Investment Income with respect to that portion of such Pre-Incentive Fee Net Investment Income, if any, that exceeds the Hurdle Rate but is less than 2.1875% in any calendar quarter (8.75% annualized) is payable to the Company’s investment adviser. This portion of the Company’s Pre-Incentive Fee Net Investment Income (which exceeds the Hurdle Rate but is less than 2.1875%) is referred to as the “catch-up.” The effect of the catch-up is that, if such Pre-Incentive Fee Net Investment Income exceeds 2.1875% in any calendar quarter, the investment adviser will receive 20% of such Pre-Incentive Fee Net Investment Income as if the Hurdle Rate did not apply; and

● 20% of the amount of such Pre-Incentive Fee Net Investment Income, if any, that exceeds 2.1875% in any calendar quarter (8.75% annualized) is payable to the Company’s investment adviser (once the Hurdle Rate is reached and the catch-up is achieved, 20% of all Pre-Incentive Fee Net Investment Income).

The portion of such incentive fee that is attributable to deferred interest (such as PIK interest or original issue discount) will be paid to the investment adviser, together with interest from the date of deferral to the date of payment, only if and to the extent that the Company actually receives such interest in cash, and any accrual will be reversed if and to the extent such interest is reversed in connection with any write-off or similar treatment of the investment giving rise to any deferred interest accrual. Any reversal of such amounts would reduce net income for the quarter by the net

amount of the reversal (after taking into account the reversal of incentive fees payable) and would result in a reduction and possibly elimination of the incentive fees for such quarter.

There is no accumulation of amounts on the Hurdle Rate from quarter to quarter and, accordingly, there is no clawback of amounts previously paid if subsequent quarters are below the quarterly Hurdle Rate and there is no delay of payment if prior quarters are below the quarterly Hurdle Rate. Since the Hurdle Rate is fixed, as interest rates rise, it will be easier for the investment adviser to surpass the Hurdle Rate and receive an incentive fee based on Pre-Incentive Fee Net Investment Income.

Net investment income used to calculate this component of the incentive fee is also included in the amount of consolidated gross assets used to calculate the base management fee. These calculations will be appropriately prorated for any period of less than three months and adjusted for any share issuances or repurchases during the current quarter.

The second component, the capital gains component of the incentive fee (the “Capital Gains Incentive Fee”), which is determined and payable in arrears as of the end of each calendar year (or upon termination of the Investment Advisory Agreement, as of the termination date), commenced on January 1, 2013, and equals 20% of cumulative aggregate realized capital gains from January 1 through the end of each calendar year, computed net of aggregate cumulative realized capital losses and aggregate cumulative unrealized capital depreciation through the end of each year (the “Capital Gains Incentive Fee Base”), less the aggregate amount of any previously paid capital gains incentive fees and subject to the Incentive Fee Cap and Deferral Mechanism. If such amount is negative, then no capital gains incentive fee will be payable for the year. Additionally, if the Investment Advisory Agreement is terminated as of a date that is not a calendar year end, the termination date will be treated as though it were a calendar year end for purposes of calculating and paying the capital gains incentive fee. The capital gains component of the incentive fee is not subject to any minimum return to stockholders.

In accordance with GAAP, the Company is also required to include the aggregate unrealized capital appreciation on investments in the calculation and accrue a capital gains incentive fee on a quarterly basis if such unrealized capital appreciation were realized, even though such unrealized capital appreciation is not permitted to be considered in calculating the fee actually payable under the Investment Advisory Agreement. If the Capital Gains Incentive Fee Base, adjusted as required by GAAP to include unrealized capital appreciation, is positive at the end of a reporting period, then GAAP requires the Company to accrue a Capital Gains Incentive Fee equal to 20% of such amount, less the aggregate amount of any Capital Gains Incentive Fees previously paid and Capital Gains Incentive Fees accrued under GAAP in all prior periods. If such amount is negative, then there is no accrual for such period. The resulting accrual under GAAP in a given period may result in either additional expense (if such cumulative amount is greater than in the prior period) or a reversal of previously recorded expense (if such cumulative amount is less than in the prior period). There can be no assurance that such unrealized capital appreciation will be realized in the future.

Because of the structure of the incentive fee, it is possible that the Company may pay an incentive fee in a quarter where it incurs a loss subject to the Incentive Fee Cap and Deferral Mechanism. For example, if the Company receives Pre-Incentive Fee Net Investment Income in excess of the Hurdle Rate, it will pay the applicable Income Incentive Fee even after incurring a loss in that quarter due to realized and unrealized capital losses.

The following table provides a breakdown of the performance-based incentive fees for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Performance-based Incentive Fee ($ in thousands)		2023		2022		2023		2022
Income incentive fee	$	2,648	$	1,943	$	5,324	$	3,935
Capital gains incentive fee		—		(106)		—		(671)
Total performance-based incentive fees	$	2,648	$	1,837	$	5,324	$	3,264

As of June 30, 2023 and December 31, 2022, incentive fees payable on the consolidated statements of assets and liabilities were $5,115 and $5,618, respectively. As of June 30, 2023 and December 31, 2022, they were zero incentive fees payable on the consolidated statements of assets and liabilities for cumulative accruals of Capital Gains Incentive Fees under GAAP, including any amounts payable pursuant to the Investment Advisory Agreement as described above.

Administration Agreement: Pursuant to the Administration Agreement, WhiteHorse Administration furnishes the Company with office facilities, equipment and clerical, bookkeeping and record keeping services to enable the Company to operate. Under the Administration Agreement, WhiteHorse Administration performs, or oversees the performance of, the Company’s required administrative services, which include being responsible for the financial records which the Company is required to maintain and preparing reports to its stockholders and reports filed with the U.S. Securities and Exchange Commission. In addition, WhiteHorse Administration assists the Company in determining and publishing its net asset value, oversees the preparation and filing of its tax returns and the printing and dissemination of reports to its stockholders and generally oversees the payment of the Company’s expenses and the performance of administrative and professional services rendered to the Company by others. Payments under the Administration Agreement equal an amount based upon the Company’s allocable portion of WhiteHorse Administration’s overhead in performing its obligations under the Administration Agreement, including rent and the Company’s allocable portion of the cost of its chief financial officer and chief compliance officer along with their respective staffs. Under the Administration Agreement, WhiteHorse Administration also provides on the Company’s behalf managerial assistance to those portfolio companies to which the Company is required to provide such assistance. The Administration Agreement may be terminated by either party without penalty upon 60 days’ written notice to the other party. To the extent that WhiteHorse Administration outsources any of its functions, the Company will pay the fees associated with such functions on a direct basis without any profit to WhiteHorse Administration.

Substantially all the Company’s payments of operating expenses to third parties were made by a related party, for which such third party received reimbursement from the Company.

During the three and six months ended June 30, 2023, the Company incurred $170 and $341 of allocated administrative service fees, respectively. During the three and six months ended June 30, 2022, the Company incurred $170 and $341 of allocated administrative service fees, respectively.

Co-investments with Related Parties: As of June 30, 2023 and December 31, 2022, no officers or employees affiliated with or employed by WhiteHorse Advisers and its related entities maintained any co-investments in the Company’s or STRS JV’s investments.

As of June 30, 2023 and December 31, 2022, certain funds affiliated with WhiteHorse Advisers and its related entities maintained co-investments in the Company’s or STRS JV’s investments of $4,608,177 and $4,415,678, respectively.

STRS JV: For the three and six months ended June 30, 2023, the Company sold $12,555 and $38,473 of investments to STRS JV and recognized $2 and $98 of net realized losses, respectively. For the three and six months ended June 30, 2022, the Company sold $17,754 and $100,415 of investments to STRS JV and recognized $68 and $65 of net realized gains, respectively.

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COMMITMENTS AND CONTINGENCIES

6 Months Ended

Jun. 30, 2023

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

NOTE 8 - COMMITMENTS AND CONTINGENCIES

Commitments: In the normal course of business, the Company is party to financial instruments with off-balance-sheet risk to meet the financing needs of its borrowers. These financial instruments include commitments to extend credit and involve, to varying degrees, elements of credit risk in excess of the amount recognized in the consolidated statement of assets and liabilities. The Company attempts to limit its credit risk by conducting extensive due diligence and obtaining collateral where appropriate.

The balance of unfunded commitments to extend credit was $38,847 and $56,190 as of June 30, 2023 and December 31, 2022, respectively. Commitments to extend credit consist principally of the unused portions of commitments that obligate the Company to extend credit, such as revolving credit arrangements or similar transactions. These commitments are often subject to financial or non-financial milestones and other conditions to borrow that must be achieved before the commitment can be drawn. In addition, the commitments generally have fixed expiration dates or other termination clauses. Since commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements.

The following table summarizes the Company’s unfunded commitments as of June 30, 2023 and December 31, 2022:

Unfunded Commitments(1) ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Revolving Loan Commitments:
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)	$	—	$	113
Bridgepoint Healthcare, LLC		1,588		1,588
Claridge Products and Equipment, LLC		351		204
Coastal Television Broadcasting Group LLC		309		309
EducationDynamics, LLC		1,199		1,199
Gulf Winds International Acquisition LLC (d/b/a Gulf Winds International, Inc.)		647		647
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)		700		700
Industrial Specialty Services USA LLC		—		508
Inspired Beauty Brands, Inc.		442		265
Leviathan Intermediate Holdco, LLC		494		494
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)		—		1,024
MSI Information Services, Inc.		675		1,050
M&M OpCo. LLC (d/b/a Escalent, Inc.)		238		—
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)		34		—
PFB Holdco, Inc. (d/b/a PFB Corporation)(1)		919		899
PFB Holdco, Inc. (d/b/a PFB Corporation)		296		296
PG Dental New Jersey Parent, LLC		—		352
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		2,089		2,299
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		387		603
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)		1,814		2,646
Telestream Holdings Corporation		397		397
The Kyjen Company, LLC (d/b/a Outward Hound)		798		—
Total unfunded revolving loan commitments		13,377		15,593
Delayed Draw Loan Commitments:
Bridgepoint Healthcare, LLC		794		794
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)		—		4,063
EducationDynamics, LLC		1,709		1,709
HRG Management, LLC (d/b/a HomeRiver Group, LLC)		—		2,167
JZ Capital Partners Ltd.		5,714		5,714
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		—		2,090
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		1,683		2,097
Solar Holdings Bidco Limited(1)(2)		—		4,008
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)		6,237		8,217
Telestream Holdings Corporation		—		346
True Blue Car Wash, LLC		—		59
US Methanol Midco LLC (d/b/a US Methanol LLC)		9,333		9,333
Total unfunded delayed draw loan commitments		25,470		40,597
Total Unfunded Commitments	$	38,847	$	56,190

(1) Unfunded commitments denominated in non-USD currencies have been converted to USD using the exchange rate as of the applicable reporting date.

(2) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be US dollars, Canadian dollars or British pounds.

As of June 30, 2023, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $23,000 and $92,000, respectively, of which $2,632 and $10,528 were unfunded, respectively. As of December 31, 2022, the Company had commitments to fund equity interests and subordinated notes in STRS JV of $20,000 and $80,000, respectively, both of which were fully funded. The capital commitments cannot be drawn without an affirmative vote by both the Company’s and STRS Ohio’s representatives on STRS JV’s board of managers.

Indemnification: In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties that provide general indemnifications. The Company’s maximum exposure

under these arrangements is unknown, as this would involve future claims that may be made against the Company that have not occurred. The Company expects the risk of any future obligation under these indemnifications to be remote.

Legal Proceedings: In the normal course of business, the Company, WhiteHorse Advisers and WhiteHorse Administrator may be subject to legal and regulatory proceedings that are generally incidental to its ongoing operations. While there can be no assurance of the ultimate disposition of any such proceedings, the Company does not believe any such disposition will have a material adverse effect on the Company’s consolidated financial statements.

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STOCKHOLDERS' EQUITY

6 Months Ended

Jun. 30, 2023

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY

NOTE 9 - STOCKHOLDERS’ EQUITY

On March 31, 2023, the Company launched an “at-the-market” offering (the “ATM Program”) by entering into an Equity Distribution Agreement with B. Riley Securities, Inc. pursuant to which the Company may offer and sell, from time to time, through B. Riley Securities, Inc., as the sales agent, shares of its common stock having an aggregate offering amount of up to $35,000.

On March 15, 2021, the Company previously launched an ATM Program by entering into an Equity Distribution Agreement with Raymond James & Associates, Inc. pursuant to which the Company would offer and sell, from time to time, through Raymond James & Associates, Inc., as the sales agent, shares of its common stock having an aggregate offering amount of up to $35,000. Through the Equity Distribution Agreeement with Raymond James & Associates, Inc., the Company sold 276,300 shares of its common stock at a weighted-average price of $15.77 per share, which amounted to $4,359 in gross proceeds. The Company received net proceeds of $4,272 after deducting commissions to the sales agent, but before offering expenses. As of March 31, 2023, the Company’s Equity Distribution Agreement with Raymond James & Associates, Inc. is no longer effective.

The following table summarizes the total shares issued and proceeds received, net of offering costs, relating to the issuance of shares of the Company’s common stock from the DRIP and pursuant to the ATM Program for the three and six months ended June 30, 2023 and 2022

	Three months ended June 30,				Six months ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Shares Issued from ATM Program		—		—		—		16,678
Shares Issued from DRIP		—		31,675		—		63,743
Total Shares Issued		—		31,675		—		80,421
Proceeds, before offering expenses	$	—	$	480	$	—	$	1,225
Average Price Per Share(1)	$	—	$	15.15	$	—	$	15.23

(1) No shares were issued during the three and six months ended June 30, 2023. The average price per share for the three and six months ended June 30, 2022, inclusive of offering expenses, was $15.15 and $13.72 per share, respectively.

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FINANCIAL HIGHLIGHTS

6 Months Ended

Jun. 30, 2023

FINANCIAL HIGHLIGHTS

FINANCIAL HIGHLIGHTS

NOTE 10 - FINANCIAL HIGHLIGHTS

The following is a schedule of financial highlights:

	Six months ended June 30,
	2023			2022
Per share data:(1)
Net asset value, beginning of period	$	14.30		$	15.10
Net investment income		0.92			0.71
Net realized and unrealized gains (losses) on investments and foreign currency transactions		(0.43)			(0.15)
Net increase in net assets resulting from operations		0.49			0.56
Distributions declared from net investment income		(0.79)			(0.71)
Net asset value, end of period	$	14.00		$	14.95
Total annualized return based on market value(2)		(3.40)	%		(30.70)	%
Total annualized return based on net asset value		6.89	%		7.48	%
Net assets, end of period	$	325,296		$	347,425
Per share market value at end of period	$	12.83		$	13.14
Shares outstanding end of period		23,243,088			23,243,088
Ratios/Supplemental Data:(3)
Ratio of expenses before incentive fees to average net assets(4)		15.22	%		11.67	%
Ratio of incentive fees to average net assets		3.22	%		1.87	%
Ratio of total expenses to average net assets(4)		18.44	%		13.54	%
Ratio of net investment income to average net assets(4)		12.89	%		9.41	%
Portfolio turnover ratio		8.75	%		21.43	%

(1) Based on actual number of shares outstanding at the end of the period or the weighted average shares outstanding for the period, unless otherwise noted, as appropriate.

(2) Total return is based on the change in market price per share during the period and takes into account distributions, if any, reinvested in accordance with the DRIP.

(3) With the exception of the portfolio turnover rate, ratios are reported on an annualized basis.

(4) Calculated using total expenses, including income tax provision.

Financial highlights are calculated for each securities class taken as a whole. An individual stockholder’s return and ratios may vary based on the timing of capital transactions.

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CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

6 Months Ended

Jun. 30, 2023

CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

NOTE 11 - CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

The following information sets forth the computation of the basic and diluted per share net increase in net assets resulting from operations:

	Three Months Ended June 30,				Six Months Ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Net increase in net assets resulting from operations	$	3,881	$	7,349	$	11,387	$	13,056
Weighted average shares outstanding		23,243,088		23,240,651		23,243,088		23,215,792
Basic and diluted per share net increase in net assets resulting from operations	$	0.17	$	0.32	$	0.49	$	0.56

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SUBSEQUENT EVENTS

6 Months Ended

Jun. 30, 2023

SUBSEQUENT EVENTS

SUBSEQUENT EVENTS

NOTE 12 - SUBSEQUENT EVENTS

The Company’s management has evaluated events that have occurred after the balance sheet date but before the consolidated financial statements are issued and, other than the items discussed below, has determined that there were no additional subsequent events requiring adjustment or disclosure in the consolidated financial statements.

On August 7, 2023, the 6.000% 2023 Notes, with a principal amount outstanding of $30,000, were fully repaid. Proceeds for the repayment were from existing cash balances and borrowings under the JPM Credit Facility.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)

6 Months Ended

Jun. 30, 2023

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

Basis of Presentation: The accompanying consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) and include the accounts of WhiteHorse Finance and its wholly owned subsidiaries, WhiteHorse Finance Credit I, LLC (“WhiteHorse Credit”), and its subsidiary WhiteHorse Finance (CA), LLC (“WhiteHorse California”), WHF PMA Holdco Blocker, LLC, WHF American Craft Blocker, LLC, WhiteHorse RCKC Holdings, LLC and WhiteHorse Finance Holdings, LLC. The Company meets the definition of an investment company under Accounting Standards Codification (“ASC”) Topic 946, Financial Services - Investment Companies, and therefore applies the accounting and reporting guidance discussed therein to its consolidated financial statements. All significant intercompany balances and transactions have been eliminated.

Additionally, the accompanying consolidated financial statements and related financial information have been prepared pursuant to the requirements for reporting on Form 10-K and Articles 6, 10 and 12 of Regulation S-X. In the opinion of management, the consolidated financial statements reflect all adjustments, consisting solely of normal recurring accruals considered necessary for the fair presentation of financial results as of and for the periods presented.

Principles of Consolidation

Principles of Consolidation: Under the investment company rules and regulations pursuant to ASC Topic 946, WhiteHorse Finance is precluded from consolidating any entity other than another investment company. As provided under ASC Topic 946, WhiteHorse Finance generally consolidates any investment company when it owns 100% of its partners’ or members’ capital or equity units. The Company does not consolidate its investment in STRS JV or any of its controlled affiliate investments. See further description in Note 4.

Use of Estimates

Use of Estimates: The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the financial statements. Actual results could differ from those estimates.

Fair Value of Financial Instruments

Fair Value of Financial Instruments: The Company determines the fair value of its financial instruments in accordance with ASC Topic 820, Fair Value Measurements and Disclosures. ASC Topic 820 defines fair value, establishes a framework used to measure fair value and requires disclosures for fair value measurements. In accordance

with ASC Topic 820, the Company has categorized its financial instruments carried at fair value, based on the priority of the valuation technique, into a three-level fair value hierarchy. Fair value is a market-based measure considered from the perspective of the market participant who holds the financial instrument. Therefore, when market assumptions are not readily available, the Company’s own assumptions are set to reflect those that management believes market participants would use in pricing the financial instrument at the measurement date.

The Company values its investments in accordance with the 1940 Act and Rule 2a-5 thereunder, which sets forth the requirements for determining fair value in good faith. Pursuant to Rule 2a-5, the board of directors has designated the Investment Adviser to determine the fair value of the Company’s investments. The board of directors oversees the Investment Adviser’s performance of its valuation responsibilities, and in support of this oversight, the Investment Adviser provides periodic reports to the Company’s board of directors related to the fair valuation process. The Investment Adviser carries out its responsibilities as valuation designee primarily through its valuation committee (the “Valuation Committee”), assisted by third-party valuation firms, administrative personnel, and other service providers, as appropriate. The Valuation Committee consists of a number of representatives from different functions of the Investment Adviser. The Investment Adviser conducts the fair valuation process on a quarterly basis, subject to the oversight of the Company’s board of directors through the audit committee, using consistently applied valuation procedures. In accordance with the Company’s valuation procedures, the Investment Adviser performs periodic testing of the appropriateness and accuracy of fair value methodologies, and has established a process for approving, monitoring, and evaluating independent pricing service providers. Effective September 8, 2022, the board of directors designated the Investment Adviser as the Company’s valuation designee.

Investments that are not publicly traded or for which market prices are not readily available will be valued based on the input of the Investment Adviser and independent third-party valuation firms engaged to review Company investments. These external reviews are used by the Company’s Investment Adviser, subject to the oversight of the board of directors, to review the Company’s internal valuation of investments during the year.

Investment Transactions

Investment Transactions: The Company records investment transactions on a trade date basis. These transactions may settle subsequent to the trade date depending on the transaction type. Certain expenses related to legal and tax consultation, due diligence, rating fees, valuation expenses and independent collateral appraisals may arise when the Company makes certain investments. These expenses are recognized in the consolidated statements of operations as they are incurred.

Foreign currency translation

Foreign currency translation: The Company’s books and records are maintained in U.S. dollars. Any foreign currency amounts are translated into U.S. dollars on the following basis:

(1) cash and cash equivalents, restricted cash and cash equivalents, fair value of investments, interest receivable, and other assets and liabilities — at the spot exchange rate on the last business day of the period; and

(2) purchases and sales of investments, income and expenses — at the exchange rates prevailing on the respective dates of such transactions.

Although net assets and fair values are presented based on the applicable foreign exchange rates described above, the Company does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in fair values of investments held. Such fluctuations are included with the net realized and unrealized gain or loss from investments. Fluctuations arising from the translation of assets other than investments and liabilities are included with the net change in unrealized appreciation (depreciation) on translation of assets and liabilities in foreign currencies on the consolidated statements of operations.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with investing in U.S. companies. These risks include, but are not limited to, currency fluctuations and revaluations and future adverse political, social and economic developments, which could cause investments in foreign markets to be less liquid and prices to be more volatile than those of comparable U.S. companies or U.S. government securities.

Revenue Recognition

Revenue Recognition: The Company’s revenue recognition policies are as follows:

Sales: Realized gains or losses on the sales of investments are calculated by using the specific identification method.

Investment Income: Interest income, adjusted for amortization of premium and accretion of discount, is recorded on an accrual basis. The Company may also receive closing, commitment, prepayment, amendment and other fees from portfolio companies in the ordinary course of business.

Dividend income is recorded on the record date for private portfolio companies or on the ex-dividend date for publicly traded portfolio companies.

Closing fees associated with investments in portfolio companies are deferred and recognized as interest income over the respective terms of the applicable loans. Upon the prepayment of a loan or debt security, any unamortized loan closing fees are recorded as part of interest income. Commitment fees are based upon the undrawn portion committed by the Company and are recorded as interest income on an accrual basis. Prepayment, amendment and other fees are recognized when earned, generally when such fees are receivable, and are included in fee income on the consolidated statements of operations.

The Company may invest in loans that contain a PIK interest rate provision. PIK interest is accrued at the contractual rates and added to loan principal on the reset dates to the extent such amounts are expected to be collected.

Non-accrual loans: Loans are placed on non-accrual status when principal or interest payments are past due 30 days or more or when there is reasonable doubt that principal or interest will be collected. The Company may conclude that non-accrual status is not required if the loan has sufficient collateral value and is in the process of collection. Accrued interest is generally reversed when a loan is placed on non-accrual status. Interest payments received on non-accrual loans may be recognized as income or applied to principal depending upon management’s judgment. Non-accrual loans are restored to accrual status when past due principal and interest is paid and, in management’s judgment, are likely to remain current.

Cash and Cash Equivalents

Cash and Cash Equivalents: Cash and cash equivalents include cash, deposits with financial institutions, and short-term liquid investments in money market funds with original maturities of three months or less.

Restricted Cash and Cash Equivalents

Restricted Cash and Cash Equivalents: Restricted cash and cash equivalents include amounts that are collected and held by the trustee appointed as custodian of the assets securing the Credit Facility (as defined in Note 6). Restricted cash is held by the trustee for the payment of interest expense and principal on the outstanding borrowings or reinvestment into new assets. Restricted cash that represents interest or fee income is transferred to unrestricted cash accounts by the trustee generally once a quarter after the payment of operating expenses and amounts due under the Credit Facility.

Offering Costs

Offering Costs: The Company may incur legal, accounting, regulatory, investment banking and other costs in relation to equity offerings. Offering costs are deferred and charged against paid-in capital in excess of par on completion of the related offering.

Deferred Financing Costs

Deferred Financing Costs: Deferred financing costs represent fees and other direct incremental costs incurred in connection with the Company’s borrowings. These amounts are amortized and are included in interest expense in the consolidated statements of operations over the estimated life of the borrowings. Deferred financing costs are presented in the consolidated statements of assets and liabilities as a direct reduction from the carrying amount of the related debt liability.

Income Taxes

Income Taxes: The Company elected to be treated as a RIC under Subchapter M of the Code. In order to maintain its status as a RIC, among other requirements, the Company is required to distribute dividends for U.S. federal income tax purposes to its stockholders each taxable year generally of an amount at least equal to 90% of the sum of ordinary

income and realized net short-term capital gains in excess of realized net long-term capital losses, if any, out of the assets legally available for distribution. In addition, the Company will incur a nondeductible excise tax equal to 4% of the amount by which (1) 98% of ordinary income for the calendar year (taking into account certain deferrals and elections), (2) 98.2% of capital gains in excess of capital losses, adjusted for certain ordinary losses, for the one-year period ending on October 31 of the calendar year and (3) any ordinary income and capital gain income for preceding years that were not distributed during such years and on which the Company incurred no U.S. federal income tax exceed distributions for the year. The Company accrues estimated excise tax on the amount, if any, that estimated taxable income is expected to exceed the level of stockholder distributions described above.

The Company recognizes the financial statement benefit of a tax position only after determining that the relevant tax authority would more-likely-than-not sustain the position following an audit. For tax positions meeting the more-likely-than-not threshold, the amount recognized in the financial statement is the largest benefit or expense that has a greater than 50% likelihood of being realized upon ultimate settlement with the relevant tax authority. Any tax positions not deemed to satisfy the more-likely-than-not threshold are reversed and recorded as tax benefit or tax expense, as appropriate, in the current year. Management has analyzed the Company’s tax positions, and the Company has concluded that the Company did not have any unrecognized tax benefits or unrecognized tax liabilities related to uncertain tax positions as of June 30, 2023 and December 31, 2022.

Penalties or interest that may be assessed related to any income taxes would be classified as general and administrative expenses on the consolidated statements of operations. The Company had no amounts accrued for interest or penalties as of June 30, 2023 or December 31, 2022. The Company does not expect the total amount of unrecognized tax benefits to significantly change in the next twelve months. The Company’s tax returns are subject to examination by federal, state and local taxing authorities. Because many types of transactions are susceptible to varying interpretations under U.S. federal and state income tax laws and regulations, the amounts reported in the accompanying consolidated financial statements may be subject to change at a later date by the respective taxing authorities. Tax returns for each of the federal tax years since 2019 remain subject to examination by the Internal Revenue Service.

As of June 30, 2023 and December 31, 2022, the cost of investments for federal income tax purposes was $762,622 and $784,812 resulting in net unrealized depreciation of $34,270 and $24,584, respectively. This is comprised of gross unrealized appreciation of $7,800 and $7,881 and gross unrealized depreciation of $42,070 and $32,465, on a tax basis, as of June 30, 2023 and December 31, 2022, respectively.

Dividends and Distributions

Dividends and Distributions: Dividends and distributions to common stockholders are recorded on the ex-dividend date. Quarterly distribution payments are determined by the Company’s board of directors and are paid from taxable earnings estimated by management and may include a return of capital and/or capital gains. Net realized capital gains, if any, are distributed at least annually, although the Company may decide to retain such capital gains for investment.

The Company maintains an “opt out” dividend reinvestment plan (“DRIP”) for common stockholders. As a result, if the Company declares a distribution or other dividend, stockholders’ cash distributions will be automatically reinvested in additional shares of common stock, unless they specifically “opt out” of the DRIP so as to receive cash distributions.

Earnings per Share

Earnings per Share: The Company calculates earnings per share as earnings available to stockholders divided by the weighted average number of shares outstanding during the period.

Risks and Uncertainties

Risks and Uncertainties: In the normal course of business, the Company encounters primarily two significant types of economic risks: credit and market. Credit risk is the risk of default on the Company’s investments that result from an issuer’s, borrower’s or derivative counterparty’s inability or unwillingness to make contractually required payments. Market risk reflects changes in the value of investments due to changes in interest rates, spreads or other market factors, including the value of the collateral underlying investments held by the Company. Management believes that the carrying value of the Company’s investments are fairly stated, taking into consideration these risks along with estimated collateral values, payment histories and other market information.

Reclassifications

Reclassifications: Certain amounts in the consolidated financial statements have been reclassified. These reclassifications had no material impact on the Company’s consolidated financial position, results of operations or cash flows as previously reported.

Effective March 17, 2023, the Global Industry Classification Standards structure was updated with changes to certain industry naming conventions and the Company has adopted the new structure in the consolidated financial statements for all periods presented.

Recent Accounting Pronouncements

Recent Accounting Pronouncements: In June 2022, the Financial Accounting Standards Board (“FASB”) issued ASU No. 2022-03, Fair Value Measurement of Equity Securities Subject to Contractual Sale Restrictions. This ASU clarifies the guidance in ASC 820 on the fair value measurement of an equity security that is subject to a contractual sale restriction. The ASU clarifies that a contractual restriction on the sale of an equity security should not be considered in measuring its fair value. The guidance also requires specific disclosures related to equity securities that are subject to contractual sale restrictions. The guidance is effective for fiscal years beginning after December 15, 2023 and interim periods within that fiscal year under a prospective approach, with early adoption permitted. The Company is currently evaluating the impact of the adoption of ASU 2022-03 on its consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848) Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions to ease the potential burden in accounting for (or recognizing the effects of) reference rate reform on financial reporting if certain criteria are met. The guidance is effective from March 12, 2020 through December 31, 2022. In December 2022, the FASB issued ASU No. 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848, which deferred the sunset day of this guidance to December 31, 2024. The adoption of this ASU did not have a material impact on the consolidated financial statements.

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FORWARD CURRENCY CONTRACTS (Tables)

6 Months Ended

Jun. 30, 2023

FORWARD CURRENCY CONTRACTS

Schedule of forward currency contracts

		Three months ended June 30,				Six months ended June 30,
($ in thousands)		2023		2022		2023		2022
Realized gain (loss) on forward currency contracts	$	4	$	(8)	$	(3)	$	(8)
Unrealized appreciation (depreciation) on forward currency contracts		(12)		4		(6)		—
Total net realized and unrealized gains (losses) on forward currency contracts	$	(8)	$	(4)	$	(9)	$	(8)

Schedule of unrealized appreciation or depreciation on forward currency contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	554	CAD	$	410	USD	8/4/23	$	—	$	(9)
Total								$	—	$	(9)

Schedule of notional exposure to foreign currency forward contracts

	Three months ended June 30,				Six months ended June 30,
Average USD notional outstanding		2023		2022		2023		2022
Forward currency contracts	$	401	$	205	$	395	$	217

Schedule of master netting agreement

	As of June 30, 2023
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9
Total	$	—	$	9	$	—	$	—	$	—	$	—	$	—	$	—	$	9

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

	As of December 31, 2022
Counterparty ($ in thousands)	Derivative Assets Subject to Master Netting Agreement		Derivative Liabilities Subject to Master Netting Agreement		Derivatives Available for Offset		Non-cash Collateral Received		Non-cash Collateral Pledged(1)		Cash Collateral Received(1)		Cash Collateral Pledged(1)		Net Amount of Derivative Assets(2)		Net Amount of Derivative Liabilities(3)
Morgan Stanley (CAD)	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—	$	—
Morgan Stanley (GBP)		—		3		—		—		—		—		—		—		3
Total	$	—	$	3	$	—	$	—	$	—	$	—	$	—	$	—	$	3

(1) In some instances, the actual amount of the collateral received and/or pledged may be more than the amount shown due to overcollateralization.

(2) Net amount of derivative assets represents the net amount due from the counterparty to the Company in the event of default.

(3) Net amount of derivative liabilities represents the net amount due from the Company to the counterparty in the event of default.

XML

INVESTMENTS (Tables)

6 Months Ended

Jun. 30, 2023

Schedule of Investments [Line Items]

Schedule of individual investments

Investments consisted of the following:

	As of June 30, 2023				As of December 31, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
First lien secured loans	$	608,426	$	592,900	$	631,091	$	618,267
Second lien secured loans		24,728		17,132		24,685		20,634
Subordinated unsecured loans		167		167		167		167
Subordinated Note to STRS JV		81,472		81,472		80,000		80,000
Equity (excluding STRS JV)		24,862		15,752		26,486		21,000
Equity in STRS JV		20,368		20,929		20,000		20,160
Total	$	760,023	$	728,352	$	782,429	$	760,228

The following table shows the portfolio composition by industry grouping at fair value:

Industry ($ in thousands)	As of June 30, 2023				As of December 31, 2022
Advertising	$	5,242	0.8	%	$	154	—	%
Air Freight & Logistics		25,555	4.1			16,107	2.4
Alternative Carriers		12,414	2.0			12,068	1.8
Application Software		35,429	5.7			27,117	4.1
Asset Management & Custody Banks		10,205	1.6			10,144	1.5
Automotive Retail		13,902	2.2			14,363	2.2
Broadcasting		7,415	1.2			7,780	1.2
Broadline Retail		36,448	5.8			37,191	5.6
Building Products		24,109	3.9			24,362	3.7
Cable & Satellite		20,612	3.3			20,489	3.1
Commodity Chemicals		20,899	3.3			20,410	3.1
Construction Materials		7,475	1.2			7,459	1.1
Data Processing & Outsourced Services		22,129	3.5			22,817	3.5
Distributors		1,734	0.3			4,171	0.6
Diversified Chemicals		9,938	1.6			13,268	2.0
Diversified Financial Services		3,397	0.5			3,788	0.7
Diversified Support Services		9,483	1.5			11,035	1.7
Education Services		12,583	2.0			12,869	1.9
Electric Utilities		15,743	2.5			10,411	1.7
Environmental & Facilities Services		12,380	2.0			18,459	2.8
Health Care Facilities		9,871	1.6			10,131	1.5
Health Care Services		23,711	3.8			23,333	3.5
Health Care Supplies		19,333	3.1			23,090	3.5
Heavy Electrical Equipment		16,449	2.6			14,520	2.2
Home Furnishings		25,634	4.1			24,780	3.8
Household Appliances		6,171	1.0			6,615	1.0
Household Products		10,506	1.7			11,153	1.7
Industrial Machinery & Supplies & Components		8,089	1.3			9,874	1.5
Interactive Media & Services		9,107	1.5			9,488	1.4
Investment Banking & Brokerage		9,325	1.5			18,240	2.8
IT Consulting & Other Services		5,880	0.9			15,408	2.3
Leisure Facilities		22,509	3.6			21,979	3.3
Leisure Products		13,749	2.2			13,366	2.0
Life Sciences Tools & Services		4,827	0.8			4,824	0.8
Office Services & Supplies		28,560	4.6			25,832	3.9
Packaged Foods & Meats		—	—			10,941	1.7
Paper & Plastic Packaging Products & Materials		123	—			283	0.1
Personal Care Products		11,182	1.8			13,482	2.0
Real Estate Development		10,140	1.5			8,103	1.2
Real Estate Operating Companies		6,350	1.0			5,909	0.9
Research & Consulting Services		21,713	3.5			21,896	3.3
Specialized Consumer Services		23,754	3.8			37,819	5.7
Specialized Finance(1)		—	—			—	—
Systems Software		15,188	2.4			17,847	2.7
Technology Hardware, Storage & Peripherals		16,688	2.7			16,693	2.5
Total(1)	$	625,951	100.0	%	$	660,068	100.0	%

(1) Excludes investments in STRS JV.

Schedule of forward currency contracts

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	9,146	$	9,020	$	8,918	28.00	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	5.75%	11.14%	03/11/22	12/15/26	3,070		3,027		2,993	9.40
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	11.14%	02/18/22	12/15/26	—		—		(7)	(0.02)
										12,047		11,904	37.38
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	3,559		3,513		3,522	11.06
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	11.00%	02/17/22	06/15/26	—		—		2	0.01
										3,513		3,524	11.07
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	13,285		13,118		13,285	41.71
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.20%	01/21/21	12/31/26	—		—		19	0.06
										13,118		13,304	41.77
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	18,981		18,833		18,898	59.33
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.98%	07/19/19	07/01/25	—		—		2	0.01
										18,833		18,900	59.34
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.14%	11/09/20	11/05/25	14,198		14,064		13,990	43.92
										14,064		13,990	43.92
Construction & Engineering
Pave America, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	4,035		3,924		3,953	12.41
Pave America, LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.97%	03/17/23	02/07/28	—		—		(4)	(0.01)
Pave America, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.11%	03/17/23	02/07/28	251		244		247	0.78
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.80%	12.01%	12/31/19	03/18/25	10,861		10,743		10,692	33.57
										14,911		14,888	46.75
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	19,688		15,145		14,719	46.21
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.88%	01/22/20	12/19/24	—		—		(2)	(0.01)
										15,145		14,717	46.20
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	11,769		11,708		11,567	36.32
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	7.25%	12.64% (12.14% Cash + 0.50% PIK)	07/19/19	06/30/25	468		465		454	1.43
										12,173		12,021	37.75

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Drug Retail
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.16%	04/11/23	03/01/29	5,078	$	4,934	$	4,935	15.49	%
Maxor Acquisition, Inc. (d/b/a Maxor National Pharmacy Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.93%	04/11/23	03/01/29	194		188		189	0.59
										5,122		5,124	16.08
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	13,398		13,243		13,184	41.39
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.89%	06/28/21	04/30/26	—		—		(4)	(0.01)
										13,243		13,180	41.38
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/01/22	12/29/26	11,249		11,111		11,024	34.62
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.48%	03/01/22	12/29/26	1,896		1,872		1,854	5.82
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.30%	03/01/22	12/29/26	179		177		168	0.53
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Term Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	2,783		2,714		2,736	8.59
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(10)(13)(14)	First Lien Secured Term Loan	0.50%	CDOR	6.75%	12.13%	03/23/23	09/28/29	3,839		2,729		2,845	8.93
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Term Loan	0.00%	SONIA	6.75%	11.68%	03/23/23	09/28/29	169		204		211	0.66
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	365		355		359	1.13
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(8)(13)(14)	First Lien Secured Delayed Draw Loan	0.00%	SONIA	6.75%	11.69%	03/23/23	09/28/29	535		652		657	2.06
Solar Holdings Bidco Limited (d/b/a SLR Consulting Ltd.)(12)(13)(14)	First Lien Secured Delayed Draw Loan	0.50%	SOFR	6.75%	11.80%	03/23/23	09/28/29	—		—		—	—
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	7,432		7,381		7,432	23.33
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	5.50%	10.70%	01/22/20	12/26/24	—		—		3	0.01
										27,195		27,289	85.68
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.85%	05/04/22	04/28/28	6,608		6,843		7,043	22.11
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.39%	05/04/22	04/28/28	1,006		990		991	3.11
										7,833		8,034	25.22
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.37%	SOFR	6.42%	11.61%	02/18/22	02/01/27	12,285		12,068		12,074	37.91
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.44%	02/18/22	02/01/27	574		566		565	1.77
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.50%	03/25/22	03/08/27	6,594		6,521		6,594	20.70
										19,155		19,233	60.38
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,867		2,846		2,867	9.00
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	05/19/20	05/15/25	2,394		2,386		2,394	7.52
										5,232		5,261	16.52

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
IT Consulting & Other Services
ATSG, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.72%	03/27/23	11/12/26	9,937	$	9,706	$	9,744	30.60	%
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	11.68% (11.43% Cash + 0.25% PIK)	07/16/21	05/04/26	2,830		3,862		3,484	10.94
Cennox, Inc. (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.50%	12.01% (11.76% Cash + 0.25% PIK)	06/28/22	05/04/26	9,434		9,836		10,120	31.77
Cennox Holdings Limited (d/b/a Cennox)(8)(11)	First lien Secured Revolving Loan	1.00%	Base Rate	6.13%	11.20% (10.95% Cash + 0.25% PIK)	07/16/21	05/04/26	864		1,179		1,064	3.34
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Term Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	6,263		6,084		6,085	19.11
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/29	—		—		—	—
MGT Merger Target, LLC (d/b/a MGT Consulting Group)	First lien Secured Revolving Loan	1.00%	SOFR	6.75%	11.94%	05/10/23	04/10/28	—		—		—	—
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.64%	01/27/21	12/31/26	11,093		10,962		10,983	34.48
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	11.53%	01/27/21	12/31/26	2,991		2,954		2,962	9.30
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)(11)	First Lien Secured Revolving Loan	1.00%	Base Rate	6.25%	11.55%	01/27/21	12/31/26	533		527		530	1.66
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	6,057		5,980		5,983	18.78
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	5.75%	10.95%	08/10/21	09/02/26	—		—		—	—
										51,090		50,955	159.98
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70% (10.95% Cash + 0.75% PIK)	10/21/19	06/28/25	7,108		7,060		7,002	21.98
										7,060		7,002	21.98
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.(13)	First Lien Secured Term Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	6,622		6,506		6,502	20.41
Max Solutions, Inc.(6)(13)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	7.66%	13.05%	10/07/22	09/29/28	—		—		(21)	(0.07)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	7.66%	13.05%	10/07/22	09/29/28	—		—		—	—
										6,506		6,481	20.34
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.75%	12.09%	10/21/19	08/13/25	5,730		5,664		5,715	17.94
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.75%	12.03%	10/21/19	08/13/25	310		309		311	0.98
										5,973		6,026	18.92
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	9.21%	12/16/21	11/01/27	12,225		13,597		13,054	41.00
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.27%	12/16/21	11/01/27	976		961		959	3.01
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	11.34%	10/01/22	11/01/27	887		873		871	2.73
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.03%	12/16/21	11/01/27	754		742		737	2.31
										16,173		15,621	49.05
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.18%	12/28/21	10/19/26	9,604		9,477		9,399	29.51
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	5.97%	11.50%	02/18/22	10/19/26	2,410		2,376		2,346	7.37
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	11.13%	02/18/22	10/19/26	217		214		205	0.64
										12,067		11,950	37.52

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	03/01/22	01/21/27	7,946	$	7,832	$	7,146	22.44	%
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.69%	03/01/22	01/21/27	508		500		438	1.38
										8,332		7,584	23.82
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	5.75%	11.14%	07/15/21	06/23/27	8,820		8,746		8,736	27.43
										8,746		8,736	27.43
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	15,029		14,823		14,875	46.70
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.70%	08/10/21	07/30/27	4,108		4,052		4,067	12.77
										18,875		18,942	59.47
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	9,929		9,813		9,834	30.88
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	11.42%	06/22/21	02/24/26	—		—		1	—
										9,813		9,835	30.88
Total Investments									$	326,219	$	324,501	1,018.84	%

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	339	CAD	$	251	USD	8/4/23	$	—	$	(5)
Morgan Stanley	€	893	EUR	$	989	USD	8/4/23		13		—
Morgan Stanley	£	1,158	GBP	$	1,458	USD	8/4/23		—		(14)
Total								$	13	$	(19)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility and are domiciled in the United States.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, Euro Interbank Offered Rate (“EurIBOR” or “E”) which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of STRS JV’s portfolio company investments, which as of the date of the portfolio represented 1,019% of STRS JV’s members’ equity or 94% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, LIBOR, SOFR or CDOR and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

(12) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be U.S. dollars, Canadian dollars or British pounds.

(13) Investment is structured as a unitranche loan in which the Company may receive additional interest on its “last out” tranche of the portfolio company’s senior term debt, which was previously syndicated into “first out” and “last out” tranches, whereby the “first out” tranche will have priority as to the “last out” tranche with respect to payments of principal, interest and any other amounts due thereunder.

(14) The issuer is domiciled in the United Kingdom.

Below is a listing of STRS JV’s individual investments as of December 31, 2022:

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
North America
Debt Investments
Advertising
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Term Loan	1.00%	LIBOR	5.75%	10.48%	02/18/22	12/15/26	9,193	$	9,047	$	9,007	29.79	%
I&I Sales Group, LLC (d/b/a Avision Sales Group)(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	5.75%	10.43%	03/11/22	12/15/26	2,756		2,713		2,699	8.93
I&I Sales Group, LLC (d/b/a Avision Sales Group)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.75%	10.43%	02/18/22	12/15/26	—		—		(3)	—
										11,760		11,703	38.71
Air Freight & Logistics
ITS Buyer Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	3,577		3,523		3,542	11.71
ITS Buyer Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	02/17/22	06/15/26	—		—		3	0.01
										3,523		3,545	11.72
Application Software
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	13,353		13,162		13,353	44.16
MEP-TS Midco, LLC (d/b/a Tax Slayer)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.38%	01/21/21	12/31/26	—		—		22	0.07
										13,162		13,375	44.23
Broadline Retail
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	19,105		18,920		19,105	63.18
Marlin DTC-LS Midco 2, LLC (d/b/a Clarus Commerce, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	07/19/19	07/01/25	—		—		8	0.03
										18,920		19,113	63.21
Building Products
Drew Foam Companies Inc	First Lien Secured Term Loan	1.00%	SOFR	6.75%	11.48%	11/09/20	11/05/25	14,270		14,105		14,132	46.73
										14,105		14,132	46.73
Construction & Engineering
Road Safety Services, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	12/31/19	03/18/25	8,603		8,522		8,432	27.88
										8,522		8,432	27.88
Data Processing & Outsourced Services
Geo Logic Systems Ltd.(7)	First Lien Secured Term Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	20,088		15,413		14,545	48.10
Geo Logic Systems Ltd.(7)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.38%	01/22/20	12/19/24	—		—		(9)	(0.03)
										15,413		14,536	48.07
Diversified Support Services
Quest Events, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	11,805		11,728		11,298	37.36
Quest Events, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.73%	07/19/19	12/28/24	468		464		431	1.43
										12,192		11,729	38.79
Electronic Equipment & Instruments
LMG Holdings, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	13,466		13,284		13,193	43.63
LMG Holdings, Inc.	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.23%	06/28/21	04/30/26	—		—		(6)	(0.02)
										13,284		13,187	43.61

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Environmental & Facilities Services
Juniper Landscaping Holdings LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.00%	11.15%	03/01/22	12/29/26	11,306	$	11,147	$	11,079	36.64	%
Juniper Landscaping Holdings LLC(6)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.00%	11.14%	03/01/22	12/29/26	1,909		1,882		1,868	6.18
Juniper Landscaping Holdings LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.54%	03/01/22	12/29/26	298		294		287	0.95
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	7,470		7,402		7,470	24.70
WH Lessor Corp. (d/b/a Waste Harmonics, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	5.59%	9.97%	01/22/20	12/26/24	—		—		4	0.01
										20,725		20,708	68.48
Household Appliances
Smalto Inc. (d/b/a PEMCO International)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.25%	9.00%	05/04/22	04/28/28	6,642		6,865		6,899	22.81
Smalto Inc. (d/b/a PEMCO International)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	11.04%	05/04/22	04/28/28	1,012		994		986	3.26
										7,859		7,885	26.08
Industrial Machinery & Supplies & Components
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Term Loan	1.25%	SOFR	6.25%	10.49%	02/18/22	02/01/27	8,188		8,054		7,939	26.25
BLP Buyer, Inc. (d/b/a Bishop Lifting Products, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.25%	10.67%	02/18/22	02/01/27	274		270		259	0.86
Pennsylvania Machine Works, LLC (d/b/a Penn Western)	First Lien Secured Term Loan	1.00%	SOFR	6.25%	11.09%	03/25/22	03/08/27	6,907		6,821		6,801	22.49
										15,145		14,999	49.60
Investment Banking & Brokerage
TOUR Intermediate Holdings, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	3,077		3,049		3,077	10.18
TOUR Intermediate Holdings, LLC	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.50%	10.88%	05/19/20	05/15/25	2,468		2,458		2,468	8.16
										5,507		5,545	18.34
IT Consulting & Other Services
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Term Loan	1.00%	LIBOR	6.00%	10.02%	07/16/21	05/04/26	2,837		3,863		3,343	11.06
Cennox Holdings Limited (d/b/a Cennox)(9)	First lien Secured Term Loan	1.00%	LIBOR	6.25%	10.99%	06/28/22	05/04/26	9,458		9,834		9,926	32.82
Cennox Holdings Limited (d/b/a Cennox)(8)	First lien Secured Revolving Loan	1.00%	LIBOR	6.00%	10.99%	07/16/21	05/04/26	—		—		(161)	(0.53)
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.98%	01/27/21	12/31/26	11,150		11,000		10,929	36.14
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)	First Lien Secured Delayed Draw Loan	1.00%	LIBOR	6.25%	10.65%	01/27/21	12/31/26	3,007		2,963		2,947	9.75
RCKC Acquisitions LLC (d/b/a KSM Consulting, LLC)(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.60%	01/27/21	12/31/26	533		526		517	1.71
Turnberry Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	6,087		5,998		5,964	19.72
Turnberry Solutions, Inc.	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	9.19%	08/10/21	09/02/26	—		—		(4)	(0.01)
										34,184		33,461	110.66
Packaged Foods & Meats
Poultry Holdings LLC (HPP)	First Lien Secured Term Loan	1.00%	SOFR	7.25%	11.67% (10.17% Cash + 1.50% PIK)	10/21/19	06/28/25	7,162		7,101		7,011	23.18
Stella & Chewy's LLC	First Lien Secured Term Loan	1.00%	SOFR	8.75%	13.40% (11.40% Cash + 2.00% PIK)	12/29/20	12/16/25	3,893		3,849		3,738	12.36
Stella & Chewy's LLC	First Lien Secured Delayed Draw Loan	1.00%	SOFR	8.75%	13.17% (11.17% Cash + 2.00% PIK)	03/26/21	12/16/25	1,375		1,362		1,320	4.37
										12,312		12,069	39.91

Issuer	Investment Type(1)	Floor	Reference Rate(2)	Spread Above Index	Interest Rate(3)	Acquisition Date(4)	Maturity Date	Principal/ Share Amount	Amortized Cost		Fair Value(5)		Fair Value As A Percentage of Members' Equity
Paper & Plastic Packaging Products & Materials
Max Solutions, Inc.	First Lien Secured Term Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	8,244	$	8,085	$	8,085	26.74	%
Max Solutions, Inc.(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		(26)	(0.09)
Max Solutions, Inc.(10)	First Lien Secured Revolving Loan	1.00%	CDOR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
Max Solutions, Inc.(6)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	11.23%	10/07/22	09/29/28	—		—		—	—
										8,085		8,059	26.65
Personal Care Products
Sunless, Inc.	First Lien Secured Term Loan	1.00%	LIBOR	6.50%	11.23%	10/21/19	08/13/25	3,679		3,631		3,679	12.18
Sunless, Inc.(6)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.50%	11.24%	10/21/19	08/13/25	266		264		270	0.89
										3,895		3,949	13.06
Pharmaceuticals
Meta Buyer LLC (d/b/a Metagenics, Inc.)(9)	First Lien Secured Term Loan	1.00%	EurIBOR	6.00%	8.17%	12/16/21	11/01/27	12,287		13,643		12,876	42.57
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Term Loan	1.00%	SOFR	6.00%	10.62%	12/16/21	11/01/27	981		966		963	3.18
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.00%	10.81%	10/01/22	11/01/27	892		878		876	2.90
Meta Buyer LLC (d/b/a Metagenics, Inc.)	First Lien Secured Revolving Loan	1.00%	SOFR	6.00%	10.81%	12/16/21	11/01/27	—		—		(3)	(0.01)
										15,487		14,712	48.65
Real Estate Operating Companies
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.48%	12/28/21	10/19/26	9,653		9,505		9,412	31.13
HRG Management, LLC (d/b/a HomeRiver Group, LLC)(6)(11)	First Lien Secured Delayed Draw Loan	1.00%	Base Rate	6.10%	10.92%	02/18/22	10/19/26	1,768		1,741		1,720	5.69
HRG Management, LLC (d/b/a HomeRiver Group, LLC)	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.48%	02/18/22	10/19/26	—		—		(11)	(0.04)
										11,246		11,121	36.78
Real Estate Services
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	8,924		8,778		8,301	27.45
NPAV Lessor Corp. (d/b/a Nationwide Property & Appraisal Services, LLC)	First Lien Secured Revolving Loan	1.00%	SOFR	6.50%	10.92%	03/01/22	01/21/27	290		285		247	0.82
										9,063		8,548	28.27
Research & Consulting Services
E-Phoenix Acquisition Co. Inc. (d/b/a Integreon, Inc.)	First Lien Secured Term Loan	1.00%	LIBOR	5.50%	10.23%	07/15/21	06/23/27	8,865		8,782		8,686	28.72
										8,782		8,686	28.72
Technology Hardware, Storage & Peripherals
Source Code Holdings, LLC (d/b/a Source Code Corporation)	First Lien Secured Term Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	15,105		14,874		14,882	49.21
Source Code Holdings, LLC (d/b/a Source Code Corporation)(6)	First Lien Secured Delayed Draw Loan	1.00%	SOFR	6.50%	10.92%	08/10/21	07/30/27	—		—		2	0.01
										14,874		14,884	49.22
Trading Companies & Distributors
LINC Systems, LLC	First Lien Secured Term Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	10,033		9,895		9,882	32.68
LINC Systems, LLC	First Lien Secured Revolving Loan	1.00%	LIBOR	6.25%	10.42%	06/22/21	02/24/26	—		—		(1)	(0.00)
										9,895		9,881	32.68
Total Investments									$	287,940	$	284,259	940.05	%

Forward Currency Contracts

Counterparty	Currency to be sold			Currency to be purchased			Settlement date	Unrealized appreciation		Unrealized depreciation
Morgan Stanley	C$	256	CAD	$	189	USD	1/27/23	$	—	$	—
Morgan Stanley	€	1111	EUR	$	1,128	USD	1/27/23		—		(64)
Morgan Stanley	£	229	GBP	$	266	USD	1/27/23		—		(11)
Total								$	—	$	(75)

(1) Except as noted, all investments provide collateral for the STRS JV Credit Facility.

(2) The investments bear interest at a rate that may be determined by reference to LIBOR, SOFR, CDOR, Prime, EurIBOR which may reset monthly, quarterly or semiannually.

(3) The interest rate is the “all-in-rate” including the current index and spread, the fixed rate, and the PIK interest rate, as the case may be.

(4) Except as otherwise noted, all of the STRS JV’s portfolio company investments, which as of the date of the portfolio represented 940% of STRS JV’s members’ equity or 93% of STRS JV’s total assets, are subject to legal restrictions on sales.

(5) The fair value of each investment was determined using significant unobservable inputs.

(6) The investment or a portion of the investment does not provide collateral for the STRS JV Credit Facility.

(7) Principal amount is denominated in Canadian dollars and the issuer is domiciled in Canada.

(8) Principal amount is denominated in British Pounds and the issuer is domiciled in the United Kingdom.

(9) Principal amount is denominated in Euros.

(10) Principal amount is denominated in Canadian dollars.

(11) The investment was comprised of two contracts, which were indexed to different base rates, L and P, respectively. The Floor, Spread Above Index and Interest Rate presented represent the weighted average of both contracts.

Schedule of selected Balance Sheet Information

Selected Balance Sheet Information ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Assets
Investments, at fair value (amortized cost of $326,219 and $287,940, respectively)	$	324,501	$	284,259
Cash and cash equivalents		17,002		18,960
Interest receivable		1,855		1,404
Other assets		173		673
Total assets	$	343,531	$	305,296
Liabilities
Credit facility (net of unamortized debt issuance costs of $2,178 and $1,643, respectively)	$	182,466	$	150,634
Note payable to members		123,979		120,000
Interest payable on credit facility		1,060		796
Interest payable on notes to members		3,542		3,069
Unrealized depreciation on foreign currency forward contracts		6		75
Other liabilities		632		483
Total liabilities		311,685		275,057
Members’ equity		31,846		30,239
Total liabilities and members’ equity	$	343,531	$	305,296

Schedule of selected Statement of Operations Information

	Three Months Ended				Six Months Ended
Selected Statement of Operations Information ($ in thousands)	June 30, 2023		June 30, 2022		June 30, 2023		June 30, 2022
Interest and fee income	$	9,757	$	7,216	$	18,452	$	13,127
Total investment income	$	9,757	$	7,216	$	18,452	$	13,127
Interest expense on credit facility		3,671		1,645		6,667		2,885
Interest expense on notes to members		3,542		2,189		6,870		3,981
Administrative fee		165		165		320		314
Other expenses		151		150		350		385
Total expenses	$	7,529	$	4,149	$	14,207	$	7,565
Net investment income		2,228		3,067		4,245		5,562
Net realized gains (losses) on investments and foreign currency transactions		28		41		87		120
Net change in unrealized appreciation (depreciation) on investments and foreign currency transactions		136		1,640		706		1,592
Net increase in members’ equity resulting from operations	$	2,392	$	4,748	$	5,038	$	7,274

STRS JV

Schedule of Investments [Line Items]

Schedule of individual investments

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,		Gross		Gross		Realized		Appreciation		June 30,
Affiliated Person(1)	Asset	income		2022		Additions(2)		Reductions(3)		Gain (Loss)		(Depreciation)		2023
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	84	$	6,380	$	—	$	(6,605)	$	(339)	$	564	$	—
Playmonster Group LLC	Priority First Lien Secured Term Loan		54		176		868		—		—		(14)		1,030
Playmonster Group LLC	First Lien Secured Term Loan		(85)		2,977		—		—		—		(581)		2,396
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		—		—		—		—		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		—		—		—		—		—
Chase Products Co. (f/k/a Starco)	First Lien Secured Term Loan		97		—		2,790		—		—		(201)		2,589
Pressurized Holdings, LLC (f/k/a Starco)	Common Units		—		—		—		—		—		—		—
Pressurized Holdings, LLC (f/k/a Starco)	Preferred Units		—		—		4,537		—		—		(4,290)		247
Total Non-controlled affiliates		$	150	$	9,533	$	8,195	$	(6,605)	$	(339)	$	(4,522)	$	6,262
Controlled affiliates
American Crafts, LC	Priority First Lien Secured Term Loan	$	225	$	—	$	4,750	$	—	$	—	$	(145)	$	4,605
American Crafts, LC	First Lien Secured Term Loan		585		—		7,491		—		—		(664)		6,827
American Crafts, LC	First Lien Secured Delayed Draw Loan		98		—		1,259		—		—		(113)		1,146
American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Warrants		—		—		—		—		—		—		—
New American Crafts Holdings, LLC (d/b/a American Crafts, LC)	Class A Units		—		—		—		—		—		—		—
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note		4,538		80,000		1,472		—		—		—		81,472
WHF STRS Ohio Senior Loan Fund LLC*	Equity		2,945		20,160		368		—		—		401		20,929
Total Controlled affiliates		$	8,391	$	100,160	$	15,340	$	—	$	—	$	(521)	$	114,979

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware limited liability company that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of limited liability company (“LLC”) equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

The following table presents the schedule of investments in and advances to affiliated and controlled persons (as defined by the 1940 Act) as of and for the year ended December 31, 2022:

		Dividends, interest		Beginning								Net Change in		Ending Fair
		and PIK		Fair Value as of						Net		Unrealized		Value as of
	Type of	included in		December 31,						Realized		Appreciation		December 31,
Affiliated Person(1)	Asset	income		2021		Purchases		Sales		Gain (Loss)		(Depreciation)		2022
Non-controlled affiliates
Arcole Holding Corporation	Equity	$	321	$	6,874	$	—	$	—	$	—	$	(494)	$	6,380
PlayMonster LLC	First Lien Secured Revolving Loan		13		—		1,088		(1,088)		—		—		—
Playmonster Group LLC	Priority First Lien Secured Term Loan		1		—		176		—		—		—		176
Playmonster Group LLC	First Lien Secured Term Loan		325		—		3,662		—		—		(685)		2,977
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Preferred Equity		—		—		3,600		—		—		(3,600)		—
Playmonster Group Equity, Inc. (d/b/a PlayMonster)	Common Equity		—		—		460		—		—		(460)		—
Total Non-controlled affiliates		$	660	$	6,874	$	8,986	$	(1,088)	$	—	$	(5,239)	$	9,533
Controlled affiliates
WHF STRS Ohio Senior Loan Fund LLC*	Subordinated Note	$	6,385	$	60,000	$	20,000	$	—	$	—	$	—	$	80,000
WHF STRS Ohio Senior Loan Fund LLC*	Equity		6,977		15,607		5,000		—		—		(447)		20,160
Total Controlled affiliates		$	13,362	$	75,607	$	25,000	$	—	$	—	$	(447)	$	100,160

* The Company and STRS Ohio are the members of STRS JV, a joint venture formed as a Delaware LLC that is not consolidated by either member for financial reporting purposes. The members make investments in STRS JV in the form of LLC equity interests and interest-bearing subordinated notes as STRS JV makes investments, and all portfolio and other material decisions regarding STRS JV must be submitted to STRS JV’s board of managers which is comprised of an equal number of members appointed by each of the Company and STRS Ohio. Because management of STRS JV is shared equally between the Company and STRS Ohio, the Company does not believe it controls STRS JV for purposes of the 1940 Act or otherwise.

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FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Jun. 30, 2023

FAIR VALUE MEASUREMENTS

Schedule of investments measured at fair value

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of June 30, 2023:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	592,900	$	592,900
Second lien secured loans		—		—		17,132		17,132
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		81,472		81,472
Equity (excluding STRS JV)		—		—		15,752		15,752
Equity in STRS JV(1)		—		—		—		20,929
Total investments	$	—	$	—	$	707,423	$	728,352

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

The following table presents investments (as shown on the consolidated schedule of investments) that were measured at fair value as of December 31, 2022:

	Level 1		Level 2		Level 3		Total
First lien secured loans	$	—	$	—	$	618,267	$	618,267
Second lien secured loans		—		—		20,634		20,634
Subordinated unsecured loans		—		—		167		167
Subordinated Note to STRS JV		—		—		80,000		80,000
Equity (excluding STRS JV)		—		—		21,000		21,000
Equity in STRS JV(1)		—		—		—		20,160
Total investments	$	—	$	—	$	740,068	$	760,228

(1) The Company’s equity investment in STRS JV is measured using the net asset value per share as a practical expedient for fair value, and thus has not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statements of assets and liabilities.

Schedule of changes in investments measured at fair value using Level 3 inputs

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2023:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	608,477	$	19,773	$	167	$	80,000	$	20,493	$	728,910
Funding of investments		27,136		—		—		1,472		782		29,390
Non-cash interest income		1,687		—		—		—		—		1,687
Accretion of discount		947		22		—		—		—		969
Proceeds from paydowns and sales		(40,384)		—		—		—		(6,605)		(46,989)
Conversions		(3,892)		—		—		—		3,892		—
Realized gains (losses)		(5)		—		—		—		(339)		(344)
Net unrealized appreciation (depreciation)		(1,066)		(2,663)		—		—		(2,471)		(6,200)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(1,986)	$	(2,663)	$	—	$	—	$	(3,281)	$	(7,930)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2023	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	618,267	$	20,634	$	167	$	80,000	$	21,000	$	740,068
Funding of investments		64,474		—		—		1,472		783		66,729
Non-cash interest income		3,668		—		—		—		—		3,668
Accretion of discount (premium)		2,027		43		—		—		—		2,070
Proceeds from paydowns and sales		(88,196)		—		—		—		(6,605)		(94,801)
Conversions		(4,537)		—		—		—		4,537		—
Realized gains (losses)		(100)		—		—		—		(339)		(439)
Net unrealized appreciation (depreciation)		(2,703)		(3,545)		—		—		(3,624)		(9,872)
Fair value, end of period	$	592,900	$	17,132	$	167	$	81,472	$	15,752	$	707,423
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2023	$	(3,638)	$	(3,545)	$	—	$	—	$	(4,188)	$	(11,371)

The following table presents the changes in investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2022:

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Three months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	648,770	$	23,780	$	167	$	80,000	$	26,878	$	779,595
Funding of investments		66,851		—		—		—		10		66,861
Non-cash interest income		422		2		—		—		—		424
Accretion of discount		1,609		22		—		—		—		1,631
Proceeds from paydowns and sales		(99,505)		—		—		—		(1,741)		(101,246)
Conversions		—		—		—		—		—		—
Realized gains (losses)		145		—		—		—		1,741		1,886
Net unrealized appreciation (depreciation)		(3,433)		(1,741)		—		—		223		(4,951)
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(2,719)	$	(1,741)	$	—	$	—	$	222	$	(4,238)

	First Lien		Second Lien				Subordinated
	Secured		Secured		Subordinated		Notes to STRS				Total
Six months ended June 30, 2022	Loans		Loans		Notes		JV		Equity		Investments
Fair value, beginning of period	$	697,232	$	23,650	$	167	$	60,000	$	22,552	$	803,601
Funding of investments		169,774		—		—		20,000		677		190,451
Non-cash interest income		954		2		—		—		—		956
Accretion of discount (premium)		2,933		43		—		—		—		2,976
Proceeds from paydowns and sales		(245,386)		—		—		—		(1,851)		(247,237)
Conversions		(4,060)		—		—		—		4,060		—
Realized gains (losses)		(17,039)		(1,024)		—		—		1,765		(16,298)
Net unrealized appreciation (depreciation)		10,451		(608)		—		—		(92)		9,751
Fair value, end of period	$	614,859	$	22,063	$	167	$	80,000	$	27,111	$	744,200
Change in unrealized appreciation (depreciation) on investments still held as of June 30, 2022	$	(1,983)	$	(1,634)	$	—	$	—	$	(93)	$	(3,710)

Schedule of Quantitative information about Level 3 fair value measurements

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		June 30, 2023	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	561,179	Discounted cash flow analysis	Discount rate	10.0% - 21.6% (13.3%)
		13,343	Recent transaction	Transaction price	97.0 - 97.1 (97.0)
		2,396	Enterprise value analysis	EBITDA multiple	6.9 - 6.9 (6.9)
		15,982	Expected repayment	Transaction price	100.0 - 100.0 (100.0)
Second lien secured loans		17,132	Discounted cash flow analysis	Discount rate	12.9% - 35.0% (19.6%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.1% - 4.1% (4.1%)
Subordinated Notes to STRS JV		81,472	Enterprise value analysis	n/a	n/a
Common equity		3,262	Discounted cash flow analysis	Discount rate	17.4% - 25.7% (21.7%)
		6,022	Enterprise value analysis	EBITDA multiple	6.0 - 11.2 (7.9)
		647	Recent transaction	Transaction price	1.0 - 1,000.0 (485.5)
Preferred equity		731	Discounted cash flow analysis	Discount rate	21.0% - 25.7% (21.0%)
		1,693	Enterprise value analysis	EBITDA multiple	6.0 - 10.7 (7.0)
Warrant		3,397	Discounted cash flow analysis	Discount rate	30.2% - 30.2% (30.2%)
Total Level 3 Investments	$	707,423

(1) Unobservable inputs were weighted by the relative fair value of the investments.

		Fair Value as of	Valuation	Unobservable	Range
Investment Type		December 31, 2022	Techniques	Inputs	(Weighted Average) (1)
First lien secured loans	$	536,259	Discounted cash flow analysis	Discount rate	10.0% - 30.0% (13.8%)
		67,878	Recent transaction	Transaction price	83.1 - 100.0 (95.0)
		14,130	Expected repayment	Transaction price	100.0 - 101.0 (100.5)
Second lien secured loans		20,634	Discounted cash flow analysis	Discount rate	13.2% - 25.0% (18.9%)
Subordinated unsecured loans		167	Discounted cash flow analysis	Discount rate	4.0% - 4.0% (4.0%)
Subordinated Notes to STRS JV		80,000	Enterprise value analysis	n/a	n/a
Common equity		9,990	Discounted cash flow analysis	Discount rate	15.6% - 25.9% (22.4%)
		4,735	Enterprise value analysis	EBITDA multiple	5.0 - 11.8 (8.3)
		400	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Preferred equity		714	Discounted cash flow analysis	Discount rate	20.0% - 22.5% (20.0%)
		194	Enterprise value analysis	EBITDA multiple	8.0 - 9.5 (8.6)
		926	Enterprise value analysis	Revenue multiple	0.5 - 0.5 (0.5)
		200	Recent transaction	Transaction price	1.0 - 1.0 (1.0)
Warrant		3,841	Discounted cash flow analysis	Discount rate	25.9% - 27.2% (27.2%)
Total Level 3 Investments	$	740,068

(1) Unobservable inputs were weighted by the relative fair value of the investments.

Schedule of principal amount and fair value of the Company's borrowings

		As of June 30, 2023				As of December 31, 2022
	Fair
	Value Level	Principal Amount Outstanding		Fair Value		Principal Amount Outstanding		Fair Value
JPM Credit Facility	3	$	238,649	$	236,705	$	255,145	$	252,799
6.000% 2023 Notes	3		30,000		29,931		30,000		30,382
5.375% 2025 Notes	3		40,000		37,169		40,000		37,474
5.375% 2026 Notes	3		10,000		9,133		10,000		9,149
4.000% 2026 Notes	3		75,000		68,015		75,000		67,912
5.625% 2027 Notes	3		10,000		9,034		10,000		9,063
4.250% 2028 Notes	3		25,000		21,719		25,000		21,981
		$	428,649	$	411,706	$	445,145	$	428,760

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BORROWINGS (Tables)

6 Months Ended

Jun. 30, 2023

BORROWINGS

Schedule of borrowings outstanding and available

Total borrowings outstanding and available as of June 30, 2023, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)	11/22/2025	S+2.500	%	$	238,649	$	236,705	$	96,351
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,981		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,695		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,900		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,822		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,889		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,719		—
Total debt				$	428,649	$	424,711	$	96,351

(1) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

Total borrowings outstanding and available as of December 31, 2022, were as follows:

	Maturity	Rate		Principal Amount Outstanding		Amortized Cost		Available
JPM Credit Facility(1)(2)	11/22/2025	L+2.350	%	$	255,145	$	252,799	$	79,855
6.000% 2023 Notes	8/7/2023	6.000	%		30,000		29,893		—
5.375% 2025 Notes	10/20/2025	5.375	%		40,000		39,629		—
5.375% 2026 Notes	12/4/2026	5.375	%		10,000		9,885		—
4.000% 2026 Notes	12/15/2026	4.000	%		75,000		73,652		—
5.625% 2027 Notes	12/4/2027	5.625	%		10,000		9,876		—
4.250% 2028 Notes	12/6/2028	4.250	%		25,000		24,693		—
Total debt				$	445,145	$	440,427	$	79,855

(1) The JPM Credit Facility bears interest at LIBOR plus 2.35% on outstanding USD denominated borrowings up to $285,000 and for borrowings above $285,000, a rate of SOFR plus 2.50% is applied.

(2) All foreign denominated principal borrowings have been converted to USD using the exchange rates as of the applicable reporting date.

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RELATED PARTY TRANSACTIONS (Tables)

6 Months Ended

Jun. 30, 2023

RELATED PARTY TRANSACTIONS

Schedule of management fee expenses

The following table details our management fee expenses for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Management Fee ($ in thousands)		2023		2022		2023		2022
Base management fee	$	3,705	$	3,908	$	7,416	$	7,859
Total management fees	$	3,705	$	3,908	$	7,416	$	7,859

Schedule of performance-based incentive fees

The following table provides a breakdown of the performance-based incentive fees for the three and six months ended June 30, 2023 and 2022:

		Three months ended June 30,				Six months ended June 30,
Performance-based Incentive Fee ($ in thousands)		2023		2022		2023		2022
Income incentive fee	$	2,648	$	1,943	$	5,324	$	3,935
Capital gains incentive fee		—		(106)		—		(671)
Total performance-based incentive fees	$	2,648	$	1,837	$	5,324	$	3,264

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COMMITMENTS AND CONTINGENCIES (Tables)

6 Months Ended

Jun. 30, 2023

COMMITMENTS AND CONTINGENCIES

Schedule of unfunded commitments

Unfunded Commitments(1) ($ in thousands)	As of June 30, 2023		As of December 31, 2022
Revolving Loan Commitments:
ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)	$	—	$	113
Bridgepoint Healthcare, LLC		1,588		1,588
Claridge Products and Equipment, LLC		351		204
Coastal Television Broadcasting Group LLC		309		309
EducationDynamics, LLC		1,199		1,199
Gulf Winds International Acquisition LLC (d/b/a Gulf Winds International, Inc.)		647		647
HC Salon Holdings, Inc. (d/b/a Hair Cuttery)		700		700
Industrial Specialty Services USA LLC		—		508
Inspired Beauty Brands, Inc.		442		265
Leviathan Intermediate Holdco, LLC		494		494
Motivational Marketing, LLC (d/b/a Motivational Fulfillment)		—		1,024
MSI Information Services, Inc.		675		1,050
M&M OpCo. LLC (d/b/a Escalent, Inc.)		238		—
Naviga Inc. (f/k/a Newscycle Solutions, Inc.)		34		—
PFB Holdco, Inc. (d/b/a PFB Corporation)(1)		919		899
PFB Holdco, Inc. (d/b/a PFB Corporation)		296		296
PG Dental New Jersey Parent, LLC		—		352
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		2,089		2,299
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		387		603
Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)		1,814		2,646
Telestream Holdings Corporation		397		397
The Kyjen Company, LLC (d/b/a Outward Hound)		798		—
Total unfunded revolving loan commitments		13,377		15,593
Delayed Draw Loan Commitments:
Bridgepoint Healthcare, LLC		794		794
Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)		—		4,063
EducationDynamics, LLC		1,709		1,709
HRG Management, LLC (d/b/a HomeRiver Group, LLC)		—		2,167
JZ Capital Partners Ltd.		5,714		5,714
Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)		—		2,090
Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)		1,683		2,097
Solar Holdings Bidco Limited(1)(2)		—		4,008
StoicLane MidCo, LLC (d/b/a StoicLane Inc.)		6,237		8,217
Telestream Holdings Corporation		—		346
True Blue Car Wash, LLC		—		59
US Methanol Midco LLC (d/b/a US Methanol LLC)		9,333		9,333
Total unfunded delayed draw loan commitments		25,470		40,597
Total Unfunded Commitments	$	38,847	$	56,190

(1) Unfunded commitments denominated in non-USD currencies have been converted to USD using the exchange rate as of the applicable reporting date.

(2) Principal amount is non-USD denominated and is based in British pounds. At the option of the borrower, amounts borrowed under the delayed draw term loan commitment can be US dollars, Canadian dollars or British pounds.

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STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2023

STOCKHOLDERS' EQUITY

Schedule of stockholder's equity

	Three months ended June 30,				Six months ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Shares Issued from ATM Program		—		—		—		16,678
Shares Issued from DRIP		—		31,675		—		63,743
Total Shares Issued		—		31,675		—		80,421
Proceeds, before offering expenses	$	—	$	480	$	—	$	1,225
Average Price Per Share(1)	$	—	$	15.15	$	—	$	15.23

(1) No shares were issued during the three and six months ended June 30, 2023. The average price per share for the three and six months ended June 30, 2022, inclusive of offering expenses, was $15.15 and $13.72 per share, respectively.

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FINANCIAL HIGHLIGHTS (Tables)

6 Months Ended

Jun. 30, 2023

FINANCIAL HIGHLIGHTS

Schedule of financial highlights

	Six months ended June 30,
	2023			2022
Per share data:(1)
Net asset value, beginning of period	$	14.30		$	15.10
Net investment income		0.92			0.71
Net realized and unrealized gains (losses) on investments and foreign currency transactions		(0.43)			(0.15)
Net increase in net assets resulting from operations		0.49			0.56
Distributions declared from net investment income		(0.79)			(0.71)
Net asset value, end of period	$	14.00		$	14.95
Total annualized return based on market value(2)		(3.40)	%		(30.70)	%
Total annualized return based on net asset value		6.89	%		7.48	%
Net assets, end of period	$	325,296		$	347,425
Per share market value at end of period	$	12.83		$	13.14
Shares outstanding end of period		23,243,088			23,243,088
Ratios/Supplemental Data:(3)
Ratio of expenses before incentive fees to average net assets(4)		15.22	%		11.67	%
Ratio of incentive fees to average net assets		3.22	%		1.87	%
Ratio of total expenses to average net assets(4)		18.44	%		13.54	%
Ratio of net investment income to average net assets(4)		12.89	%		9.41	%
Portfolio turnover ratio		8.75	%		21.43	%

(1) Based on actual number of shares outstanding at the end of the period or the weighted average shares outstanding for the period, unless otherwise noted, as appropriate.

(2) Total return is based on the change in market price per share during the period and takes into account distributions, if any, reinvested in accordance with the DRIP.

(3) With the exception of the portfolio turnover rate, ratios are reported on an annualized basis.

(4) Calculated using total expenses, including income tax provision.

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CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE (Tables)

6 Months Ended

Jun. 30, 2023

CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE

Schedule of computation of basic and diluted per share net increase in net assets resulting from operations

	Three Months Ended June 30,				Six Months Ended June 30,
($ in thousands except share and per share amounts)	2023		2022		2023		2022
Net increase in net assets resulting from operations	$	3,881	$	7,349	$	11,387	$	13,056
Weighted average shares outstanding		23,243,088		23,240,651		23,243,088		23,215,792
Basic and diluted per share net increase in net assets resulting from operations	$	0.17	$	0.32	$	0.49	$	0.56

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ORGANIZATION (Details) - LIBOR or SOFR	1 Months Ended	6 Months Ended
	Jul. 31, 2019	Jun. 30, 2023
Minimum
Debt Instrument [Line Items]
Term of interest	3 years	3 years
Maximum
Debt Instrument [Line Items]
Term of interest	6 years	6 years

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Percentage of investment owned	100.00%
Unrecognized tax benefits	$ 0	$ 0
Accrued for interest or penalties	0	0
Cost of investments for federal income tax	762,622	784,812
Net unrealized depreciation	34,270	24,584
Gross unrealized appreciation	7,800	7,881
Gross unrealized depreciation	$ 42,070	$ 32,465

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FORWARD CURRENCY CONTRACTS - Forward Currency Contracts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
FORWARD CURRENCY CONTRACTS
Realized gain (loss) on forward currency contracts	$ 41	$ (61)	$ 402	$ (342)
Foreign currency forward contracts
FORWARD CURRENCY CONTRACTS
Realized gain (loss) on forward currency contracts	4	(8)	(3)	(8)
Unrealized appreciation (depreciation) on forward currency contracts	(12)	4	(6)
Total net realized and unrealized gains (losses) on forward currency contracts	$ (8)	$ (4)	$ (9)	$ (8)

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FORWARD CURRENCY CONTRACTS - Unrealized Appreciation or Depreciation On Forward Currency Contracts (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Fair value
Unrealized depreciation	$ (9)	$ (3)
Morgan Stanley
Fair value
Unrealized depreciation	$ (9)
Morgan Stanley | CAD
Fair value
Currency to be sold	554	327
Currency to be purchased		241
Morgan Stanley | USD
Fair value
Currency to be purchased	410

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FORWARD CURRENCY CONTRACTS - Notional Exposure to Foreign Currency Forward Contracts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
FORWARD CURRENCY CONTRACTS
Forward currency contracts	$ (12)	$ 4	$ (6)
Foreign currency forward contracts
FORWARD CURRENCY CONTRACTS
Forward currency contracts	$ 401	$ 205	$ 395	$ 217

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FORWARD CURRENCY CONTRACTS - Collateral Received or Pledged (Details) - Foreign currency forward contracts - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
FORWARD CURRENCY CONTRACTS
Derivative Liabilities Subject to Master Netting Agreement		$ 3
Net Amount of Derivative Liabilities		3
Morgan Stanley
FORWARD CURRENCY CONTRACTS
Derivative Liabilities Subject to Master Netting Agreement	$ 9
Net Amount of Derivative Liabilities	9
Morgan Stanley | CAD
FORWARD CURRENCY CONTRACTS
Derivative Liabilities Subject to Master Netting Agreement	9
Net Amount of Derivative Liabilities	$ 9
Morgan Stanley | GBP
FORWARD CURRENCY CONTRACTS
Derivative Liabilities Subject to Master Netting Agreement		3
Net Amount of Derivative Liabilities		$ 3

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INVESTMENTS - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Investments, amortized cost	$ 760,023	$ 782,429
Investments	728,352	760,228
First lien secured loans
Investments, amortized cost	608,426	631,091
Investments	592,900	618,267
Second lien secured loans
Investments, amortized cost	24,728	24,685
Investments	17,132	20,634
Subordinated Notes
Investments, amortized cost	167	167
Investments	167	167
Subordinated Note to STRS JV
Investments, amortized cost	81,472	80,000
Investments	81,472	80,000
Equity (excluding STRS JV)
Investments, amortized cost	24,862	26,486
Investments	15,752	21,000
Equity in STRS JV
Investments, amortized cost	20,368	20,000
Investments	$ 20,929	$ 20,160

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INVESTMENTS - Portfolio by Industry Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Investments	$ 728,352	$ 760,228
Percent of net assets	223.86%	228.75%
Advertising
Investments	$ 11,904	$ 11,703
Air Freight & Logistics
Investments	3,524	3,545
Application Software
Investments	13,304	13,375
Building Products
Investments	13,990	14,132
Construction & Engineering
Investments	14,888	8,432
Data Processing & Outsourced Services
Investments	14,717	14,536
Diversified Support Services
Investments	12,021	11,729
Drug Retail
Investments	5,124
Electronic Equipment & Instruments
Investments	13,180	13,187
Environmental & Facilities Services
Investments	27,289	20,708
Household Appliances
Investments	8,034	7,885
Industrial Machinery
Investments	19,233	14,999
Internet & Direct Marketing Retail
Investments	18,900
Investment Banking & Brokerage
Investments	5,261	5,545
Packaged Foods & Meats
Investments	7,002	12,069
Paper Packaging
Investments	6,481	8,059
Personal Products
Investments	6,026	3,949
Real Estate Operating Companies
Investments	11,950	11,121
Research & Consulting Services
Investments	8,736	8,686
Technology Hardware, Storage & Peripherals
Investments	18,942	14,884
Investments Excluding STRS JV's
Investments	$ 625,951	$ 660,068
Percent of net assets	100.00%	100.00%
Investments Excluding STRS JV's | Advertising
Investments	$ 5,242	$ 154
Percent of net assets	0.80%
Investments Excluding STRS JV's | Air Freight & Logistics
Investments	$ 25,555	$ 16,107
Percent of net assets	4.10%	2.40%
Investments Excluding STRS JV's | Alternative Carriers
Investments	$ 12,414	$ 12,068
Percent of net assets	2.00%	1.80%
Investments Excluding STRS JV's | Application Software
Investments	$ 35,429	$ 27,117
Percent of net assets	5.70%	4.10%
Investments Excluding STRS JV's | Asset Management & Custody Banks
Investments	$ 10,205	$ 10,144
Percent of net assets	1.60%	1.50%
Investments Excluding STRS JV's | Automotive Retail
Investments	$ 13,902	$ 14,363
Percent of net assets	2.20%	2.20%
Investments Excluding STRS JV's | Broadcasting
Investments	$ 7,415	$ 7,780
Percent of net assets	1.20%	1.20%
Investments Excluding STRS JV's | Building Products
Investments	$ 24,109	$ 24,362
Percent of net assets	3.90%	3.70%
Investments Excluding STRS JV's | Cable & Satellite
Investments	$ 20,612	$ 20,489
Percent of net assets	3.30%	3.10%
Investments Excluding STRS JV's | Commodity Chemicals
Investments	$ 20,899	$ 20,410
Percent of net assets	3.30%	3.10%
Investments Excluding STRS JV's | Construction Materials
Investments	$ 7,475	$ 7,459
Percent of net assets	1.20%	1.10%
Investments Excluding STRS JV's | Data Processing & Outsourced Services
Investments	$ 22,129	$ 22,817
Percent of net assets	3.50%	3.50%
Investments Excluding STRS JV's | Distributors
Investments	$ 1,734	$ 4,171
Percent of net assets	0.30%	0.60%
Investments Excluding STRS JV's | Diversified Chemicals
Investments	$ 9,938	$ 13,268
Percent of net assets	1.60%	2.00%
Investments Excluding STRS JV's | Diversified Support Services
Investments	$ 9,483	$ 11,035
Percent of net assets	1.50%	1.70%
Investments Excluding STRS JV's | Education Services
Investments	$ 12,583	$ 12,869
Percent of net assets	2.00%	1.90%
Investments Excluding STRS JV's | Electric Utilities
Investments	$ 15,743	$ 10,411
Percent of net assets	2.50%	1.70%
Investments Excluding STRS JV's | Environmental & Facilities Services
Investments	$ 12,380	$ 18,459
Percent of net assets	2.00%	2.80%
Investments Excluding STRS JV's | Health Care Facilities
Investments	$ 9,871	$ 10,131
Percent of net assets	1.60%	1.50%
Investments Excluding STRS JV's | Health Care Services
Investments	$ 23,711	$ 23,333
Percent of net assets	3.80%	3.50%
Investments Excluding STRS JV's | Health Care Supplies
Investments	$ 19,333	$ 23,090
Percent of net assets	3.10%	3.50%
Investments Excluding STRS JV's | Heavy Electrical Equipment
Investments	$ 16,449	$ 14,520
Percent of net assets	2.60%	2.20%
Investments Excluding STRS JV's | Home Furnishings
Investments	$ 25,634	$ 24,780
Percent of net assets	4.10%	3.80%
Investments Excluding STRS JV's | Household Appliances
Investments	$ 6,171	$ 6,615
Percent of net assets	1.00%	1.00%
Investments Excluding STRS JV's | Household Products
Investments	$ 10,506	$ 11,153
Percent of net assets	1.70%	1.70%
Investments Excluding STRS JV's | Industrial Machinery
Investments	$ 8,089	$ 9,874
Percent of net assets	1.30%	1.50%
Investments Excluding STRS JV's | Interactive Media & Services
Investments	$ 9,107	$ 9,488
Percent of net assets	1.50%	1.40%
Investments Excluding STRS JV's | Internet & Direct Marketing Retail
Investments	$ 36,448	$ 37,191
Percent of net assets	5.80%	5.60%
Investments Excluding STRS JV's | Investment Banking & Brokerage
Investments	$ 9,325	$ 18,240
Percent of net assets	1.50%	2.80%
Investments Excluding STRS JV's | IT Consulting & Other Services
Investments	$ 5,880	$ 15,408
Percent of net assets	0.90%	2.30%
Investments Excluding STRS JV's | Leisure Facilities
Investments	$ 22,509	$ 21,979
Percent of net assets	3.60%	3.30%
Investments Excluding STRS JV's | Leisure Products
Investments	$ 13,749	$ 13,366
Percent of net assets	2.20%	2.00%
Investments Excluding STRS JV's | Life Sciences Tools & Services
Investments	$ 4,827	$ 4,824
Percent of net assets	0.80%	0.80%
Investments Excluding STRS JV's | Office Services & Supplies
Investments	$ 28,560	$ 25,832
Percent of net assets	4.60%	3.90%
Investments Excluding STRS JV's | Other Diversified Financial Services
Investments	$ 3,397	$ 3,788
Percent of net assets	0.50%	0.70%
Investments Excluding STRS JV's | Packaged Foods & Meats
Investments		$ 10,941
Percent of net assets		1.70%
Investments Excluding STRS JV's | Paper Packaging
Investments	$ 123	$ 283
Percent of net assets		0.10%
Investments Excluding STRS JV's | Personal Products
Investments	$ 11,182	$ 13,482
Percent of net assets	1.80%	2.00%
Investments Excluding STRS JV's | Real Estate Development
Investments	$ 10,140	$ 8,103
Percent of net assets	1.50%	1.20%
Investments Excluding STRS JV's | Real Estate Operating Companies
Investments	$ 6,350	$ 5,909
Percent of net assets	1.00%	0.90%
Investments Excluding STRS JV's | Research & Consulting Services
Investments	$ 21,713	$ 21,896
Percent of net assets	3.50%	3.30%
Investments Excluding STRS JV's | Specialized Consumer Services
Investments	$ 23,754	$ 37,819
Percent of net assets	3.80%	5.70%
Investments Excluding STRS JV's | Systems Software
Investments	$ 15,188	$ 17,847
Percent of net assets	2.40%	2.70%
Investments Excluding STRS JV's | Technology Hardware, Storage & Peripherals
Investments	$ 16,688	$ 16,693
Percent of net assets	2.70%	2.50%

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INVESTMENTS - Affiliated and Controlled Persons (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Mar. 31, 2023	Jan. 31, 2022
Investments in and Advances to Affiliates [Line Items]
Weighted average remaining term of debt investments			3 years 1 month 6 days		3 years 4 months 24 days
Cost basis of non-accrual loans	$ 28,348		$ 28,348		$ 0
Fair value of non-accrual loans	19,013		19,013
Cost of investment	760,023		760,023		782,429
Paydown received under investments			56,765	$ 146,822
Realized investment gain			(3)	(15,773)
Schedule of investments in and advances to affiliated and controlled persons
Beginning Fair Value			760,228
Net Change in Unrealized Appreciation (Depreciation)			(9,470)	12,036
Ending Fair Value	728,352		728,352		760,228
Sklar Holdings, Inc [Member] | First Lien Secured Term Loan [Member]
Investments in and Advances to Affiliates [Line Items]
Cost of investment						$ 3,339
Paydown received under investments	690
PlayMonster LLC | First Lien Secured Term Loan and First Lien Secured Delayed Draw Loan [Member]
Investments in and Advances to Affiliates [Line Items]
Cost of investment							$ 7,045
PlayMonster LLC | First Lien Revolving Loan Investment [Member]
Investments in and Advances to Affiliates [Line Items]
Cost of investment		$ 437		437
Pressurized Holdings, LLC [Member] | Preferred Units [Member]
Investments in and Advances to Affiliates [Line Items]
Cost of investment	3,892		3,892
Non-controlled affiliate company investments
Investments in and Advances to Affiliates [Line Items]
Realized investment gain	(339)	1,725	(339)	1,725	1,725
Schedule of investments in and advances to affiliated and controlled persons
Dividends, interest and PIK included in income			150		660
Beginning Fair Value			9,533	6,874	6,874
Gross Additions			8,195		8,986
Gross Reductions			(6,605)		(1,088)
Net Realized Gain (Loss)			(339)
Net Change in Unrealized Appreciation (Depreciation)	(3,022)	(586)	(4,522)	(2,206)	(5,239)
Ending Fair Value	6,262		6,262		9,533
Controlled affiliate company investments
Schedule of investments in and advances to affiliated and controlled persons
Dividends, interest and PIK included in income			8,391		13,362
Beginning Fair Value			100,160	75,607	75,607
Gross Additions			15,340		25,000
Net Change in Unrealized Appreciation (Depreciation)	(600)	$ 1,502	(521)	1,672	(447)
Ending Fair Value	114,979		114,979		100,160
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 2,105
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:ABBCon-ciseOpticalGroupLLCMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			2,093
Ending Fair Value					$ 2,093
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 19,964		$ 19,964		$ 21,110
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ABBCon-ciseOpticalGroupLLCMember		whf:ABBCon-ciseOpticalGroupLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 20,997
Ending Fair Value	$ 19,333		19,333		$ 20,997
Investment, Identifier [Axis]: ALM Media, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 12,859		$ 12,859		$ 13,286
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ALMMediaLLCMember		whf:ALMMediaLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 13,255
Ending Fair Value	$ 12,853		12,853		$ 13,255
Investment, Identifier [Axis]: ATSG Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,758		$ 3,758		$ 13,620
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ATSGIncMember		whf:ATSGIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 13,487
Ending Fair Value	$ 3,735		3,735		$ 13,487
Investment, Identifier [Axis]: ATSG, First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,706		$ 9,706
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ATSGIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 9,744		$ 9,744
Investment, Identifier [Axis]: Aeyon LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 8,737		$ 8,737		$ 8,764
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AeyonLLCMember		whf:AeyonLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 8,641
Ending Fair Value	$ 8,860		$ 8,860		$ 8,641
Investment, Identifier [Axis]: American Crafts Holdings, LLC, Warrants
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AmericanCraftsLCMember		whf:AmericanCraftsLCMember
Investment type	Warrant		Warrant		Warrant
Investment, Identifier [Axis]: American Crafts LC First Lien Secured Term Loan One
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AmericanCraftsLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Dividends, interest and PIK included in income			$ 585
Gross Additions			7,491
Net Change in Unrealized Appreciation (Depreciation)			(664)
Ending Fair Value	$ 6,827		6,827
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,458		$ 1,458		$ 1,346
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AmericanCraftsLCMember		whf:AmericanCraftsLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Dividends, interest and PIK included in income			$ 98
Beginning Fair Value			1,147
Gross Additions			1,259
Net Change in Unrealized Appreciation (Depreciation)			(113)
Ending Fair Value	$ 1,146		1,146		$ 1,147
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 8,720		$ 8,720		$ 9,473
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AmericanCraftsLCMember		whf:AmericanCraftsLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 8,244
Ending Fair Value	$ 6,827		6,827		$ 8,244
Investment, Identifier [Axis]: American Crafts, LC Priority First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,750		$ 4,750
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AmericanCraftsLCMember
Investment type	whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember
Dividends, interest and PIK included in income			$ 225
Gross Additions			4,750
Net Change in Unrealized Appreciation (Depreciation)			(145)
Ending Fair Value	$ 4,605		$ 4,605
Investment, Identifier [Axis]: Arcole Holding Corporation Shares
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 6,944
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ArcoleHoldingCorporationMember		whf:ArcoleHoldingCorporationMember
Investment type	Equity (excluding STRS JV)		Equity (excluding STRS JV)		Equity (excluding STRS JV)
Dividends, interest and PIK included in income			$ 84		$ 321
Beginning Fair Value			6,380	6,874	6,874
Gross Reductions			(6,605)
Net Realized Gain (Loss)			(339)
Net Change in Unrealized Appreciation (Depreciation)			564		(494)
Ending Fair Value					6,380
Investment, Identifier [Axis]: Arcstor Midco, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 19,568		$ 19,568		$ 19,353
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ArcstorMidcoLLCMember		whf:ArcstorMidcoLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 17,847
Ending Fair Value	$ 15,188		15,188		$ 17,847
Investment, Identifier [Axis]: Atlas Purchaser, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,643		$ 2,643		$ 2,611
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AtlasPurchaserIncMember		whf:AtlasPurchaserIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 2,556
Ending Fair Value	$ 2,348		2,348		$ 2,556
Investment, Identifier [Axis]: Atlas Purchaser, Inc Second Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 14,670		$ 14,670		$ 14,642
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AtlasPurchaserIncMember		whf:AtlasPurchaserIncMember
Investment type	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember
Beginning Fair Value			$ 11,969
Ending Fair Value	$ 10,876		10,876		$ 11,969
Investment, Identifier [Axis]: Avision Holdings, LLC Class A LLC Interests
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 268		$ 268		$ 258
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:AvisionHoldingsLLCMember		whf:AvisionHoldingsLLCMember
Investment type	whf:ClassALLCInterestsMember		whf:ClassALLCInterestsMember		whf:ClassALLCInterestsMember
Beginning Fair Value			$ 154
Ending Fair Value	$ 296		296		$ 154
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,588		$ 2,588		$ 2,557
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BBQBuyerLLCMember		whf:BBQBuyerLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 2,541
Ending Fair Value	$ 2,588		2,588		$ 2,541
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 12,700		$ 12,700		$ 12,550
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BBQBuyerLLCMember		whf:BBQBuyerLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 12,465
Ending Fair Value	$ 12,694		12,694		$ 12,465
Investment, Identifier [Axis]: BBQ Buyer, LLC Shares
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,100		$ 1,100		$ 1,100
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BBQBuyerLLCMember		whf:BBQBuyerLLCMember
Investment type	Common Stock		Common Stock		Common Stock
Beginning Fair Value			$ 1,404
Ending Fair Value	$ 1,176		1,176		$ 1,404
Investment, Identifier [Axis]: BL Products Parent, LP Class A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 788		$ 788		$ 667
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BLProductsParentLPMember		whf:BLProductsParentLPMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember		whf:ClassAUnitsMember
Beginning Fair Value			$ 514
Ending Fair Value	$ 1,190		1,190		$ 514
Investment, Identifier [Axis]: BLP Buyer, Inc. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 2,098
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:BLProductsParentLPMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			2,091
Ending Fair Value					$ 2,091
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 10.67%, Due 2/1/28
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 566		$ 566		$ 270
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BLProductsParentLPMember		whf:BLProductsParentLPMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 259
Ending Fair Value	$ 565		565		$ 259
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Term Loan, Floor 1.25%, Spread SF plus 6.25%, Rate 10.49%, Due 2/1/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 12,068		$ 12,068		$ 8,054
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BLProductsParentLPMember		whf:BLProductsParentLPMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,939
Ending Fair Value	$ 12,074		12,074		$ 7,939
Investment, Identifier [Axis]: BPII-JL Group Holdings LP Class A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 825		$ 825		$ 825
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BPII-JLGroupHoldingsLPMember		whf:BPII-JLGroupHoldingsLPMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember		whf:ClassAUnitsMember
Beginning Fair Value			$ 600
Ending Fair Value	$ 972		$ 972		$ 600
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BridgepointHealthcareLLCMember		whf:BridgepointHealthcareLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ (14)
Ending Fair Value	$ (14)		$ (14)		$ (14)
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BridgepointHealthcareLLCMember		whf:BridgepointHealthcareLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (16)
Ending Fair Value	$ (17)		(17)		$ (16)
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,012		$ 10,012		$ 10,266
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BridgepointHealthcareLLCMember		whf:BridgepointHealthcareLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,161
Ending Fair Value	$ 9,902		9,902		$ 10,161
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,977		$ 1,977		$ 1,963
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BulkMidcoLLCMember		whf:BulkMidcoLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 1,964
Ending Fair Value	$ 1,944		1,944		$ 1,964
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 19,142		$ 19,142		$ 19,126
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:BulkMidcoLLCMember		whf:BulkMidcoLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 18,525
Ending Fair Value	$ 18,668		18,668		$ 18,525
Investment, Identifier [Axis]: CX Holdco LLC Common Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,116		$ 1,116		$ 1,116
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CXHoldcoLLCMember		whf:CXHoldcoLLCMember
Investment type	whf:CommonUnitsMember		whf:CommonUnitsMember		whf:CommonUnitsMember
Beginning Fair Value			$ 1,558
Ending Fair Value	$ 1,406		1,406		$ 1,558
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:CampFacilityServicesHoldingsLLCMember
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			(96)
Ending Fair Value					$ (96)
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,561		$ 11,561		$ 11,606
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CampFacilityServicesHoldingsLLCMember		whf:CampFacilityServicesHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,326
Ending Fair Value	$ 11,308		11,308		$ 11,326
Investment, Identifier [Axis]: Camp Facility Services Parent, LLC Preferred Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 840		$ 840		$ 840
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CampFacilityServicesParentLLCMember		whf:CampFacilityServicesParentLLCMember
Investment type	Preferred Units [Member]		Preferred Units [Member]		Preferred Units [Member]
Beginning Fair Value			$ 927
Ending Fair Value	$ 974		974		$ 927
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Revolving Loan, Base Rate Floor 1.00%, Spread Rate plus 5.17%, Rate 12.10%, Due 5/4/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,179		$ 1,179
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CennoxHoldingsLimitedMember		whf:CennoxHoldingsLimitedMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (161)
Ending Fair Value	$ 1,064		1,064		$ (161)
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 10.02%, Due 5/4/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,862		$ 3,862		$ 3,863
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CennoxHoldingsLimitedMember		whf:CennoxHoldingsLimitedMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 3,343
Ending Fair Value	$ 3,484		3,484		$ 3,343
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.99%, Due 5/4/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,836		$ 9,836		$ 9,834
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CennoxHoldingsLimitedMember		whf:CennoxHoldingsLimitedMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,926
Ending Fair Value	$ 10,120		$ 10,120		$ 9,926
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ChaseProductsCoMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Dividends, interest and PIK included in income			$ 97
Gross Additions			2,790
Net Change in Unrealized Appreciation (Depreciation)			(201)
Ending Fair Value	$ 2,589		2,589
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan 12.00 PIK
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,790		$ 2,790
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ChaseProductsCoMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 2,589		$ 2,589
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 627		$ 627		$ 772
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ClaridgeProductsandEquipmentLLCMember		whf:ClaridgeProductsandEquipmentLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 732
Ending Fair Value	$ 568		568		$ 732
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,338		$ 7,338		$ 6,994
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ClaridgeProductsandEquipmentLLCMember		whf:ClaridgeProductsandEquipmentLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,727
Ending Fair Value	$ 6,907		6,907		$ 6,727
Investment, Identifier [Axis]: CleanChoice Energy, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 15,672		$ 15,672		$ 10,341
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CleanChoiceEnergyIncMember		whf:CleanChoiceEnergyIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,411
Ending Fair Value	$ 15,743		$ 15,743		$ 10,411
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CoastalTelevisionBroadcastingGroupLLCMember		whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (5)
Ending Fair Value	$ (2)		(2)		$ (5)
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,467		$ 7,467		$ 7,908
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:CoastalTelevisionBroadcastingGroupLLCMember		whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,785
Ending Fair Value	$ 7,417		7,417		$ 7,785
Investment, Identifier [Axis]: Drew Foam Companies Inc First Lien Secured Term Loan Due 11/5/2025
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 14,105
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:DrewFoamCompaniesIncMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			14,132
Ending Fair Value					$ 14,132
Investment, Identifier [Axis]: Drew Foam Companies Inc, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 11/5/2025
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 14,064		$ 14,064
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:DrewFoamCompaniesIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 13,990		$ 13,990
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.50%, Rate 10.23%, Due 6/23/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 8,782
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:E-PhoenixAcquisitionCo.Inc.Member
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			8,686
Ending Fair Value					$ 8,686
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.75%, Rate 6.75%, Due 6/23/2027
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 8,746		$ 8,746
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:E-PhoenixAcquisitionCo.Inc.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 8,736		$ 8,736
Investment, Identifier [Axis]: Eddy Acquisitions, LLC Preferred Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 167		$ 167		$ 167
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EddyAcquisitionsLLCMember		whf:EddyAcquisitionsLLCMember
Investment type	Preferred Units [Member]		Preferred Units [Member]		Preferred Units [Member]
Beginning Fair Value			$ 83
Ending Fair Value	$ 73		$ 73		$ 83
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EducationDynamicsLLCMember		whf:EducationDynamicsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ (26)
Ending Fair Value	$ (44)		$ (44)		$ (26)
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EducationDynamicsLLCMember		whf:EducationDynamicsLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (18)
Ending Fair Value	$ (31)		(31)		$ (18)
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 12,755		$ 12,755		$ 12,861
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EducationDynamicsLLCMember		whf:EducationDynamicsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 12,663
Ending Fair Value	$ 12,418		12,418		$ 12,663
Investment, Identifier [Axis]: EducationDynamics, LLC Subordinated Unsecured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 167		$ 167		$ 167
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EducationDynamicsLLCMember		whf:EducationDynamicsLLCMember
Investment type	whf:SubordinatedUnsecuredTermLoanMember		whf:SubordinatedUnsecuredTermLoanMember		whf:SubordinatedUnsecuredTermLoanMember
Beginning Fair Value			$ 167
Ending Fair Value	$ 167		167		$ 167
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,608		$ 4,608		$ 4,746
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EmpireOfficeIncMember		whf:EmpireOfficeIncMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 4,754
Ending Fair Value	$ 4,640		4,640		$ 4,754
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,296		$ 11,296		$ 11,728
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:EmpireOfficeIncMember		whf:EmpireOfficeIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,687
Ending Fair Value	$ 11,342		11,342		$ 11,687
Investment, Identifier [Axis]: FGI Acquisition Corp. (d/b/a Flexitallic Group SAS) First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 15,795		$ 15,795		$ 15,794
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:FgiAcquisitionCorpMember		whf:FgiAcquisitionCorpMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 15,859
Ending Fair Value	$ 16,106		16,106		$ 15,859
Investment, Identifier [Axis]: Foodservices Brand Group, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 357		$ 357		$ 357
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:FoodservicesBrandGroupLlcMember		whf:FoodservicesBrandGroupLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 330
Ending Fair Value	$ 305		305		$ 330
Investment, Identifier [Axis]: Foodservices Brand Group, LLC Second Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,119		$ 5,119		$ 5,108
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:FoodservicesBrandGroupLlcMember		whf:FoodservicesBrandGroupLlcMember
Investment type	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember
Beginning Fair Value			$ 3,841
Ending Fair Value	$ 1,429		1,429		$ 3,841
Investment, Identifier [Axis]: Future Payment Technologies, LP First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 22,179		$ 22,179		$ 22,776
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:FuturePaymentTechnologiesLPMember		whf:FuturePaymentTechnologiesLPMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 22,817
Ending Fair Value	$ 22,129		$ 22,129		$ 22,817
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:GeoLogicSystemsLtdMember		whf:GeoLogicSystemsLtdMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (9)
Ending Fair Value	$ (2)		(2)		$ (9)
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 15,145		$ 15,145		$ 15,413
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:GeoLogicSystemsLtdMember		whf:GeoLogicSystemsLtdMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 14,545
Ending Fair Value	$ 14,719		$ 14,719		$ 14,545
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:GulfWindsInternationalAcquisitionLlcMember		whf:GulfWindsInternationalAcquisitionLlcMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 5		$ 5
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,697		$ 4,697		$ 4,708
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:GulfWindsInternationalAcquisitionLlcMember		whf:GulfWindsInternationalAcquisitionLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 4,708
Ending Fair Value	$ 4,731		$ 4,731		$ 4,708
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:HCSalonHoldingsIncMember		whf:HCSalonHoldingsIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 10
Ending Fair Value	$ 9		9		$ 10
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,313		$ 11,313		$ 11,348
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:HCSalonHoldingsIncMember		whf:HCSalonHoldingsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,521
Ending Fair Value	$ 11,463		11,463		$ 11,521
Investment, Identifier [Axis]: HRG Management, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:HRGManagementLLCMember
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00% Base Rate Plus, 6.12%, Rate 10.90%, Due 10/19/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,376		$ 2,376		$ 1,741
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			HRG Management, LLC (d/b/a HomeRiver Group, LLC)		HRG Management, LLC (d/b/a HomeRiver Group, LLC)
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 1,720
Ending Fair Value	$ 2,346		2,346		$ 1,720
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 214		$ 214
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			HRG Management, LLC (d/b/a HomeRiver Group, LLC)		HRG Management, LLC (d/b/a HomeRiver Group, LLC)
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (11)
Ending Fair Value	$ 205		205		$ (11)
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,477		$ 9,477		$ 9,505
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			HRG Management, LLC (d/b/a HomeRiver Group, LLC)		HRG Management, LLC (d/b/a HomeRiver Group, LLC)
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,412
Ending Fair Value	$ 9,399		9,399		$ 9,412
Investment, Identifier [Axis]: Hollander Intermediate LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,766		$ 4,766		$ 4,821
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:HollanderIntermediateLlcMember		whf:HollanderIntermediateLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 4,609
Ending Fair Value	$ 4,301		4,301		$ 4,609
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,625		$ 4,625		$ 4,621
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:HonorsHoldingsLLCMember		whf:HonorsHoldingsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 4,557
Ending Fair Value	$ 4,573		4,573		$ 4,557
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,359		$ 9,359		$ 9,344
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:HonorsHoldingsLLCMember		whf:HonorsHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,254
Ending Fair Value	$ 9,286		9,286		$ 9,254
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,027		$ 3,027		$ 2,713
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:IAndISalesGroupLLCMember		whf:IAndISalesGroupLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 2,699
Ending Fair Value	$ 2,993		$ 2,993		$ 2,699
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:IAndISalesGroupLLCMember		whf:IAndISalesGroupLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (3)
Ending Fair Value	$ (7)		(7)		$ (3)
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,020		$ 9,020		$ 9,047
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:IAndISalesGroupLLCMember		whf:IAndISalesGroupLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,007
Ending Fair Value	$ 8,918		$ 8,918		$ 9,007
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ITSBuyerIncMember		whf:ITSBuyerIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 3
Ending Fair Value	$ 2		2		$ 3
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,513		$ 3,513		$ 3,523
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ITSBuyerIncMember		whf:ITSBuyerIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 3,542
Ending Fair Value	$ 3,522		3,522		$ 3,542
Investment, Identifier [Axis]: ImageOne Industries, LLC Common A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6		$ 6		$ 4
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ImageOneIndustriesLLCMember		whf:ImageOneIndustriesLLCMember
Investment type	whf:CommonAUnitsMember		whf:CommonAUnitsMember		us-gaap:CommonClassAMember
Beginning Fair Value			$ 92
Ending Fair Value	$ 21		21		$ 92
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 663
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:IndustrialSpecialtyServicesUSALLCMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			649
Ending Fair Value					$ 649
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,661		$ 11,661		$ 11,697
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:IndustrialSpecialtyServicesUSALLCMember		whf:IndustrialSpecialtyServicesUSALLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,559
Ending Fair Value	$ 11,408		11,408		$ 11,559
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 88		$ 88		$ 262
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:InspiredBeautyBrandsIncMember		whf:InspiredBeautyBrandsIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 252
Ending Fair Value	$ 88		88		$ 252
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,093		$ 11,093		$ 11,381
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:InspiredBeautyBrandsIncMember		whf:InspiredBeautyBrandsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,159
Ending Fair Value	$ 11,094		11,094		$ 11,159
Investment, Identifier [Axis]: JVMC Holdings Corp First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,312		$ 9,312		$ 11,833
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JVMCHoldingsCorpMember		whf:JVMCHoldingsCorpMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,860
Ending Fair Value	$ 9,325		$ 9,325		$ 11,860
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JZCapitalPartnersLtdMember		whf:JZCapitalPartnersLtdMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 9
Ending Fair Value	$ 24		24		$ 9
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,139		$ 10,139		$ 10,118
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JZCapitalPartnersLtdMember		whf:JZCapitalPartnersLtdMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,135
Ending Fair Value	$ 10,181		10,181		$ 10,135
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Delayed Draw Loan Due 12/29/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,872		$ 1,872		$ 1,882
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JuniperLandscapingHoldingsLLCMember		whf:JuniperLandscapingHoldingsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 1,868
Ending Fair Value	$ 1,854		1,854		$ 1,868
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Revolving Loan Due 12/29/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 177		$ 177		$ 294
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JuniperLandscapingHoldingsLLCMember		whf:JuniperLandscapingHoldingsLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 287
Ending Fair Value	$ 168		168		$ 287
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Term Loan Due 12/29/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,111		$ 11,111		$ 11,147
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:JuniperLandscapingHoldingsLLCMember		whf:JuniperLandscapingHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,079
Ending Fair Value	$ 11,024		11,024		$ 11,079
Investment, Identifier [Axis]: Keras Holdings, LLC Shares
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 496		$ 496		$ 496
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:KerasHoldingsLLCMember		whf:KerasHoldingsLLCMember
Investment type	Common Stock		Common Stock		Common Stock
Beginning Fair Value			$ 363
Ending Fair Value	$ 425		$ 425		$ 363
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LINCSystemsLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 1		$ 1
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,813		$ 9,813
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LINCSystemsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 9,834		$ 9,834
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:LINCSystemsLLCMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			(1)
Ending Fair Value					$ (1)
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 9,895
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:LINCSystemsLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			9,882
Ending Fair Value					$ 9,882
Investment, Identifier [Axis]: LMG Holdings, Inc First Lien Secured Term Loan Due 4/30/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,243		$ 13,243		$ 13,284
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LMGHoldingsIncMember		whf:LMGHoldingsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 13,193
Ending Fair Value	$ 13,184		$ 13,184		$ 13,193
Investment, Identifier [Axis]: LMG Holdings, Inc. First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LMGHoldingsIncMember		whf:LMGHoldingsIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (6)
Ending Fair Value	$ (4)		(4)		$ (6)
Investment, Identifier [Axis]: LSCS Holdings, Inc Second Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,939		$ 4,939		$ 4,935
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LSCSHoldingsIncMember		whf:LSCSHoldingsIncMember
Investment type	whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember		whf:SecondLienSecuredTermLoanMember
Beginning Fair Value			$ 4,824
Ending Fair Value	$ 4,827		4,827		$ 4,824
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,102		$ 5,102		$ 5,124
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LabLogisticsLLCMember		whf:LabLogisticsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 5,131
Ending Fair Value	$ 5,104		5,104		$ 5,131
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,449		$ 5,449		$ 5,446
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LabLogisticsLLCMember		whf:LabLogisticsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 5,487
Ending Fair Value	$ 5,462		5,462		$ 5,487
Investment, Identifier [Axis]: Lenny & Larry's, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 11,198
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:LennyLarrysLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			10,941
Ending Fair Value					$ 10,941
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 74		$ 74		$ 76
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LeviathanIntermediateHoldcoLlcMember		whf:LeviathanIntermediateHoldcoLlcMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 75
Ending Fair Value	$ 81		81		$ 75
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,118		$ 10,118		$ 10,141
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LeviathanIntermediateHoldcoLlcMember		whf:LeviathanIntermediateHoldcoLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,138
Ending Fair Value	$ 10,242		10,242		$ 10,138
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan A
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,512		$ 5,512		$ 5,531
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LiftBrandsIncMember		whf:LiftBrandsIncMember
Investment type	whf:FirstLienSecuredTermLoanAMember		whf:FirstLienSecuredTermLoanAMember		whf:FirstLienSecuredTermLoanAMember
Beginning Fair Value			$ 5,520
Ending Fair Value	$ 5,517		5,517		$ 5,520
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan B
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,371		$ 1,371		$ 1,316
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LiftBrandsIncMember		whf:LiftBrandsIncMember
Investment type	whf:FirstLienSecuredTermLoanBMember		whf:FirstLienSecuredTermLoanBMember		whf:FirstLienSecuredTermLoanBMember
Beginning Fair Value			$ 1,266
Ending Fair Value	$ 1,314		1,314		$ 1,266
Investment, Identifier [Axis]: Luxury Brand Holdings, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,224		$ 5,224		$ 5,807
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:LuxuryBrandHoldingsIncMember		whf:LuxuryBrandHoldingsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 5,880
Ending Fair Value	$ 5,266		$ 5,266		$ 5,880
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,613		$ 4,613
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 4,613		$ 4,613
Investment, Identifier [Axis]: MBS Highway, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,227		$ 9,227		$ 9,250
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MbsHighwayLlcMember		whf:MbsHighwayLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,250
Ending Fair Value	$ 9,217		9,217		$ 9,250
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:MEP-TSMidcoLLCMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			22
Ending Fair Value					$ 22
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 13,162
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:MEP-TSMidcoLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 13,353
Ending Fair Value					$ 13,353
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MEP-TSMidcoLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 19		$ 19
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,118		$ 13,118
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MEP-TSMidcoLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 13,285		$ 13,285
Investment, Identifier [Axis]: MGT Merger Target, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MgtMergerTargetLlcMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MgtMergerTargetLlcMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,084		$ 6,084
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MgtMergerTargetLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 6,085		$ 6,085
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 370		$ 370
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MSIInformationServicesIncMember		whf:MSIInformationServicesIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (9)
Ending Fair Value	$ 332		332		$ (9)
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,425		$ 7,425		$ 7,623
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MSIInformationServicesIncMember		whf:MSIInformationServicesIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,554
Ending Fair Value	$ 7,157		7,157		$ 7,554
Investment, Identifier [Axis]: Manchester Acquisition Sub LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,582		$ 7,582		$ 7,578
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ManchesterAcquisitionSubLLCMember		whf:ManchesterAcquisitionSubLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,731
Ending Fair Value	$ 7,102		$ 7,102		$ 6,731
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MarlinDTC-LSMidco2LLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 2		$ 2
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 18,833		$ 18,833
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MarlinDTC-LSMidco2LLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 18,898		$ 18,898
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:MarlinDTC-LSMidco2LLCMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			8
Ending Fair Value					$ 8
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 18,920
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:MarlinDTC-LSMidco2LLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			19,105
Ending Fair Value					$ 19,105
Investment, Identifier [Axis]: Max Solutions Inc. Common Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 400		$ 400		$ 400
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxSolutionsIncMember		whf:MaxSolutionsIncMember
Investment type	Common Stock		Common Stock		Common Stock
Beginning Fair Value			$ 283
Ending Fair Value	$ 123		$ 123		$ 283
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxSolutionsIncMember		whf:MaxSolutionsIncMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ (26)
Ending Fair Value	$ (21)		$ (21)		$ (26)
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread CDOR plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxSolutionsIncMember		whf:MaxSolutionsIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:MaxSolutionsIncMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,506		$ 6,506		$ 8,085
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxSolutionsIncMember		whf:MaxSolutionsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 8,085
Ending Fair Value	$ 6,502		6,502		$ 8,085
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 188		$ 188
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxorAcquisitionInc.Member
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 189		$ 189
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,934		$ 4,934
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MaxorAcquisitionInc.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 4,935		$ 4,935
Investment, Identifier [Axis]: Merriman Holdings LP (d/b/a Escalent, Inc.) Class A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 333		$ 333
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MerrimanHoldingsLPMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Ending Fair Value	$ 333		$ 333
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 10.81%, Due 11/1/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 873		$ 873		$ 878
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MetaBuyerLLCMember		whf:MetaBuyerLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 876
Ending Fair Value	$ 871		871		$ 876
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.81%, Due 11/1/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 742		$ 742
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MetaBuyerLLCMember		whf:MetaBuyerLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (3)
Ending Fair Value	$ 737		737		$ (3)
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread E Plus 6.00%, Rate 8.17%, Due 11/20/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,597		$ 13,597		$ 13,643
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MetaBuyerLLCMember		whf:MetaBuyerLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 12,876
Ending Fair Value	$ 13,054		13,054		$ 12,876
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.62%, Due 11/1/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 961		$ 961		$ 966
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MetaBuyerLLCMember		whf:MetaBuyerLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 963
Ending Fair Value	$ 959		959		$ 963
Investment, Identifier [Axis]: Motivational CIV, LLC Class B Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,250		$ 1,250		$ 1,250
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MotivationalCIVLLCMember		whf:MotivationalCIVLLCMember
Investment type	whf:ClassBUnitsMember		whf:ClassBUnitsMember		whf:ClassBUnitsMember
Beginning Fair Value			$ 517
Ending Fair Value	$ 424		424		$ 517
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,167		$ 1,167		$ 155
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MotivationalMarketingLLCMember		whf:MotivationalMarketingLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 133
Ending Fair Value	$ 1,123		1,123		$ 133
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,957		$ 10,957		$ 10,956
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:MotivationalMarketingLLCMember		whf:MotivationalMarketingLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,749
Ending Fair Value	$ 10,542		10,542		$ 10,749
Investment, Identifier [Axis]: NNA Services, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,559		$ 9,559		$ 11,199
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NNAServicesLLCMember		whf:NNAServicesLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,833
Ending Fair Value	$ 9,262		9,262		$ 10,833
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 500		$ 500		$ 285
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NPAVLessorCorp.Member		whf:NPAVLessorCorp.Member
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 247
Ending Fair Value	$ 438		438		$ 247
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,832		$ 7,832		$ 8,778
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NPAVLessorCorp.Member		whf:NPAVLessorCorp.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 8,301
Ending Fair Value	$ 7,146		7,146		$ 8,301
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 267		$ 267		$ 267
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NavigaIncMember		whf:NavigaIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 258
Ending Fair Value	$ 261		261		$ 258
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,163		$ 3,163		$ 3,177
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NavigaIncMember		whf:NavigaIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 3,084
Ending Fair Value	$ 3,101		$ 3,101		$ 3,084
Investment, Identifier [Axis]: New American Crafts Holdings, LLC Class A Units
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:NewAmericanCraftsHoldingsLlcClassaUnitsMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Identifier [Axis]: PFB Holdco, Inc Class A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 423		$ 423		$ 423
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PFBHoldcoIncMember		whf:PFBHoldcoIncMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember		Preferred Units [Member]
Beginning Fair Value			$ 786
Ending Fair Value	$ 1,143		1,143		$ 786
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan CDOR
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,414		$ 6,414		$ 6,879
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PFBHoldcoIncMember		whf:PFBHoldcoIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,504
Ending Fair Value	$ 6,277		6,277		$ 6,504
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan SOFR
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,997		$ 1,997
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PFBHoldcoIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 2,013		$ 2,013
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan CDOR
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PFBHoldcoIncMember		whf:PFBHoldcoIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 2
Ending Fair Value	$ 13		$ 13		$ 2
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan LIBOR
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:PFBHoldcoIncMember
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan SOFR
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PFBHoldcoIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 2		$ 2
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Term Loan LIBOR
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 2,141
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:PFBHoldcoIncMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			2,144
Ending Fair Value					$ 2,144
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 696		$ 696		$ 347
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PGDentalNewJerseyParentLLCMember		whf:PGDentalNewJerseyParentLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 300
Ending Fair Value	$ 662		662		$ 300
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,137		$ 13,137		$ 13,324
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PGDentalNewJerseyParentLLCMember		whf:PGDentalNewJerseyParentLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 12,415
Ending Fair Value	$ 12,483		12,483		$ 12,415
Investment, Identifier [Axis]: Patagonia Hold co Llc First Lien Secured Term Loans
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 12,230		$ 12,230		$ 12,105
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PatagoniaHoldcoLLCMember		whf:PatagoniaHoldcoLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 12,068
Ending Fair Value	$ 12,414		$ 12,414		$ 12,068
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PaveAmericaLlcMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Ending Fair Value	$ (4)		$ (4)
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 244		$ 244
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PaveAmericaLlcMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Ending Fair Value	$ 247		$ 247
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,924		$ 3,924
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PaveAmericaLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 3,953		$ 3,953
Investment, Identifier [Axis]: Pennsylvania Machine Works., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 11.09%, Due 3/8/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,521		$ 6,521		$ 6,821
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PennsylvaniaMachineWorksLLCMember		whf:PennsylvaniaMachineWorksLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,801
Ending Fair Value	$ 6,594		$ 6,594		$ 6,801
Investment, Identifier [Axis]: PlayMonster LLC First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					PlayMonster LLC
Investment type					whf:FirstLienSecuredRevolvingLoanMember
Dividends, interest and PIK included in income					$ 13
Gross Additions					1,088
Gross Reductions					$ (1,088)
Investment, Identifier [Axis]: Playmonster Group Equity Inc Common Equity
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupEquityIncMember		whf:PlaymonsterGroupEquityIncMember
Investment type	Common Stock		Common Stock		Common Stock
Gross Additions					$ 460
Net Change in Unrealized Appreciation (Depreciation)					$ (460)
Investment, Identifier [Axis]: Playmonster Group Equity Inc Preferred Equity
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupEquityIncMember		whf:PlaymonsterGroupEquityIncMember
Investment type	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember		us-gaap:PreferredStockMember
Gross Additions					$ 3,600
Net Change in Unrealized Appreciation (Depreciation)					(3,600)
Investment, Identifier [Axis]: Playmonster Group Equity, Inc Common Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 460		$ 460		$ 460
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupEquityIncMember		whf:PlaymonsterGroupEquityIncMember
Investment type	Common Stock		Common Stock		Common Stock
Investment, Identifier [Axis]: Playmonster Group Equity, Inc. Preferred Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,600		$ 3,600		$ 3,600
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupEquityIncMember		whf:PlaymonsterGroupEquityIncMember
Investment type	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember		us-gaap:PreferredStockMember
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupLLCMember		whf:PlaymonsterGroupLLCMember
Investment type	whf:FirstLienSecuredLoanMember		whf:FirstLienSecuredLoanMember		whf:FirstLienSecuredLoanMember
Dividends, interest and PIK included in income			$ 85		$ 325
Beginning Fair Value			2,977
Gross Additions					3,662
Net Change in Unrealized Appreciation (Depreciation)			(581)		(685)
Ending Fair Value	$ 2,396		2,396		2,977
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 3,661		$ 3,661		$ 3,662
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupLLCMember		whf:PlaymonsterGroupLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 2,977
Ending Fair Value	$ 2,396		$ 2,396		$ 2,977
Investment, Identifier [Axis]: Playmonster Group LLC Priority First Lien Secured Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupLLCMember		whf:PlaymonsterGroupLLCMember
Investment type	whf:PriorityFirstLienSecuredLoanMember		whf:PriorityFirstLienSecuredLoanMember		whf:PriorityFirstLienSecuredLoanMember
Dividends, interest and PIK included in income			$ 54		$ 1
Beginning Fair Value			176
Gross Additions			868		176
Net Change in Unrealized Appreciation (Depreciation)			(14)
Ending Fair Value	$ 1,030		1,030		176
Investment, Identifier [Axis]: Playmonster Group LLC, Priority First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,045		$ 1,045		$ 176
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PlaymonsterGroupLLCMember		whf:PlaymonsterGroupLLCMember
Investment type	whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember
Beginning Fair Value			$ 176
Ending Fair Value	$ 1,030		1,030		$ 176
Investment, Identifier [Axis]: Potpourri Group, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,930		$ 13,930		$ 14,091
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PotpourriGroupIncMember		whf:PotpourriGroupIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 14,187
Ending Fair Value	$ 13,993		13,993		$ 14,187
Investment, Identifier [Axis]: Poultry Holdings LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 7.25%, Rate 11.67% (10.17% Cash + 1.50% PIK), Due 6/28/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,060		$ 7,060		$ 7,101
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PoultryHoldingsLLCMember		whf:PoultryHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,011
Ending Fair Value	$ 7,002		7,002		$ 7,011
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,053		$ 2,053
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PowerServiceGroupCrAcquisitionIncMember		whf:PowerServiceGroupCrAcquisitionIncMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ (34)
Ending Fair Value	$ 2,056		2,056		$ (34)
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Revolver Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,039		$ 1,039		$ 828
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PowerServiceGroupCrAcquisitionIncMember		whf:PowerServiceGroupCrAcquisitionIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 780
Ending Fair Value	$ 1,041		1,041		$ 780
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,400		$ 13,400		$ 13,922
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:PowerServiceGroupCrAcquisitionIncMember		whf:PowerServiceGroupCrAcquisitionIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 13,774
Ending Fair Value	$ 13,352		$ 13,352		$ 13,774
Investment, Identifier [Axis]: Pressurized Holdings, LLC Common Units
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Pressurized Holdings, LLC [Member]
Investment type	whf:CommonUnitsMember		whf:CommonUnitsMember
Investment, Identifier [Axis]: Pressurized Holdings, LLC Preferred Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,537		$ 4,537
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Pressurized Holdings, LLC [Member]
Investment type	Preferred Units [Member]		Preferred Units [Member]
Gross Additions			$ 4,537
Net Change in Unrealized Appreciation (Depreciation)			(4,290)
Ending Fair Value	$ 247		247
Investment, Identifier [Axis]: Project Castle, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,560		$ 7,560		$ 7,535
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:ProjectCastleIncMember		whf:ProjectCastleIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,269
Ending Fair Value	$ 6,899		6,899		$ 7,269
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 465		$ 465		$ 464
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:QuestEventsLLCMember		whf:QuestEventsLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 431
Ending Fair Value	$ 454		454		$ 431
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,708		$ 11,708		$ 11,728
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:QuestEventsLLCMember		whf:QuestEventsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 11,298
Ending Fair Value	$ 11,567		11,567		$ 11,298
Investment, Identifier [Axis]: Quest Events, LLC Preferred Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 350		$ 350		$ 347
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:QuestEventsLLCMember		whf:QuestEventsLLCMember
Investment type	Preferred Units [Member]		Preferred Units [Member]		Preferred Units [Member]
Beginning Fair Value			$ 110
Ending Fair Value	$ 200		200		$ 110
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.64%, Due 12/31/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,954		$ 2,954		$ 2,963
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:RCKCAcquisitionsLLCMember		whf:RCKCAcquisitionsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 2,947
Ending Fair Value	$ 2,962		2,962		$ 2,947
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.57%, Due 12/31/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 527		$ 527		$ 526
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:RCKCAcquisitionsLLCMember		whf:RCKCAcquisitionsLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 517
Ending Fair Value	$ 530		530		$ 517
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.98%, Due 12/31/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,962		$ 10,962		$ 11,000
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:RCKCAcquisitionsLLCMember		whf:RCKCAcquisitionsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,929
Ending Fair Value	$ 10,983		10,983		$ 10,929
Investment, Identifier [Axis]: Road Safety Services, Inc. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 10,743		$ 10,743		$ 8,522
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:RoadSafetyServicesIncMember		whf:RoadSafetyServicesIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 8,432
Ending Fair Value	$ 10,692		10,692		$ 8,432
Investment, Identifier [Axis]: Ross-Simons Topco, LP Preferred Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 514		$ 514		$ 514
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:Ross-SimonsTopcoLPMember		whf:Ross-SimonsTopcoLPMember
Investment type	Preferred Units [Member]		Preferred Units [Member]		Preferred Units [Member]
Beginning Fair Value			$ 714
Ending Fair Value	$ 731		$ 731		$ 714
Investment, Identifier [Axis]: SFS Global Holding Company Warrants
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SFSGlobalHoldingCompanyMember		whf:SFSGlobalHoldingCompanyMember
Investment type	Warrant		Warrant		Warrant
Investment, Identifier [Axis]: Salon Republic Holdings, LLC Common Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 400		$ 400		$ 400
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SalonRepublicHoldingsLlcMember		whf:SalonRepublicHoldingsLlcMember
Investment type	Common Stock		Common Stock		Common Stock
Beginning Fair Value			$ 400
Ending Fair Value	$ 233		233		$ 400
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 460		$ 460		$ 55
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SalonRepublicHoldingsLlcMember		whf:SalonRepublicHoldingsLlcMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 55
Ending Fair Value	$ 442		442		$ 55
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 462		$ 462		$ 251
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SalonRepublicHoldingsLlcMember		whf:SalonRepublicHoldingsLlcMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 251
Ending Fair Value	$ 463		463		$ 251
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,003		$ 5,003		$ 5,003
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SalonRepublicHoldingsLlcMember		whf:SalonRepublicHoldingsLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 5,003
Ending Fair Value	$ 5,012		5,012		$ 5,003
Investment, Identifier [Axis]: Salon Republic Holdings, LLC, Preferred Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 200		$ 200		$ 200
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SalonRepublicHoldingsLlcMember		whf:SalonRepublicHoldingsLlcMember
Investment type	us-gaap:PreferredStockMember		us-gaap:PreferredStockMember		us-gaap:PreferredStockMember
Beginning Fair Value			$ 200
Ending Fair Value	$ 200		200		$ 200
Investment, Identifier [Axis]: Sigue Corporation Warrants
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,890		$ 2,890		$ 2,890
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SigueCorporationMember		whf:SigueCorporationMember
Investment type	Warrant		Warrant		Warrant
Beginning Fair Value			$ 3,788
Ending Fair Value	$ 3,397		3,397		$ 3,788
Investment, Identifier [Axis]: Sklar Holdings, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 7,302
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					Sklar Holdings, Inc [Member]
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			6,537
Ending Fair Value					$ 6,537
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 821		$ 821
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SleepOpCoLLCMember		whf:SleepOpCoLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (39)
Ending Fair Value	$ 828		828		$ (39)
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 20,447		$ 20,447		$ 20,517
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SleepOpCoLLCMember		whf:SleepOpCoLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 20,210
Ending Fair Value	$ 20,505		20,505		$ 20,210
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread E plus 6.25%, Rate 9.00%, Due 4/28/28
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,843		$ 6,843		$ 6,865
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SmaltoInc.Member		whf:SmaltoInc.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,899
Ending Fair Value	$ 7,043		7,043		$ 6,899
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 11.04%, Due 4/28/28
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 990		$ 990		$ 994
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SmaltoInc.Member		whf:SmaltoInc.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 986
Ending Fair Value	$ 991		991		$ 986
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Class A Common Stock
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,941		$ 1,941		$ 1,941
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SnapFitnessHoldingsIncMember		whf:SnapFitnessHoldingsIncMember
Investment type	us-gaap:CommonClassAMember		us-gaap:CommonClassAMember		us-gaap:CommonClassAMember
Beginning Fair Value			$ 131
Ending Fair Value	$ 182		182		$ 131
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc First Lien Secured Term Loan C
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 1,577		$ 1,577		$ 1,265
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SnapFitnessHoldingsIncMember		whf:SnapFitnessHoldingsIncMember
Investment type	whf:FirstLienSecuredTermLoanCMember		whf:FirstLienSecuredTermLoanCMember		whf:FirstLienSecuredTermLoanCMember
Beginning Fair Value			$ 1,198
Ending Fair Value	$ 1,563		1,563		$ 1,198
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Warrants
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 793		$ 793		$ 793
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SnapFitnessHoldingsIncMember		whf:SnapFitnessHoldingsIncMember
Investment type	Warrant		Warrant		Warrant
Beginning Fair Value			$ 53
Ending Fair Value	$ 74		74		$ 53
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 10.93
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 652		$ 652
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Ending Fair Value	$ 657		$ 657
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 355		$ 355		$ 51
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited		Solar Holdings Bidco Limited
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 52
Ending Fair Value	$ 359		$ 359		$ 52
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55 One
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited		Solar Holdings Bidco Limited
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ (62)
Ending Fair Value					$ (62)
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan CDOR
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,729		$ 2,729		$ 2,729
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited		Solar Holdings Bidco Limited
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 2,749
Ending Fair Value	$ 2,845		2,845		$ 2,749
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SF
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,714		$ 2,714		$ 2,709
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited		Solar Holdings Bidco Limited
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 2,713
Ending Fair Value	$ 2,736		2,736		$ 2,713
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SONIA
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 204		$ 204		$ 182
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Solar Holdings Bidco Limited		Solar Holdings Bidco Limited
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 199
Ending Fair Value	$ 211		211		$ 199
Investment, Identifier [Axis]: Source Code Holdings Llc First Lien Secured Term Loan 1.00 Spread SF Plus 6.50 Rate 11.41 Due 7/30/2027 One
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,052		$ 4,052
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SourceCodeHoldingsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Ending Fair Value	$ 4,067		$ 4,067
Investment, Identifier [Axis]: Source Code Holdings, LLC First Lien Secured Term Loan 1.00%, Spread SF PLUS, 6.50%, Rate 11.41% Due 7/30/2027
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 14,823		$ 14,823
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SourceCodeHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 14,875		$ 14,875
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:SourceCodeHoldingsLLCMember
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			2
Ending Fair Value					$ 2
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 14,874
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:SourceCodeHoldingsLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			14,882
Ending Fair Value					$ 14,882
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.17% (11.17% Cash + 2.00% PIK), Due 12/16/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 1,362
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:StellaandChewysLLCMember
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			1,320
Ending Fair Value					$ 1,320
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.40% (11.40% Cash + 2.00% PIK), Due 12/16/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 3,849
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:StellaandChewysLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			3,738
Ending Fair Value					$ 3,738
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,483		$ 5,483		$ 3,563
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:StoiclaneMidcoLlcMember		whf:StoiclaneMidcoLlcMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 3,563
Ending Fair Value	$ 5,556		5,556		$ 3,563
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,529		$ 4,529		$ 4,540
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:StoiclaneMidcoLlcMember		whf:StoiclaneMidcoLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 4,540
Ending Fair Value	$ 4,584		4,584		$ 4,540
Investment, Identifier [Axis]: Sunless, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 2,051
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:SunlessIncMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			2,071
Ending Fair Value					$ 2,071
Investment, Identifier [Axis]: Sunless, Inc., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.24%, Due 8/13/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 309		$ 309		$ 264
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SunlessInc.Member		whf:SunlessIncMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 270
Ending Fair Value	$ 311		311		$ 270
Investment, Identifier [Axis]: Sunless, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 8/13/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,664		$ 5,664		$ 3,631
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:SunlessInc.Member		whf:SunlessIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 3,679
Ending Fair Value	$ 5,715		5,715		$ 3,679
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,846		$ 2,846		$ 2,458
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TOURIntermediateHoldingsLLCMember		whf:TOURIntermediateHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			$ 2,468
Ending Fair Value	$ 2,867		2,867		$ 2,468
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 2,386		$ 2,386		$ 3,049
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TOURIntermediateHoldingsLLCMember		whf:TOURIntermediateHoldingsLLCMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 3,077
Ending Fair Value	$ 2,394		2,394		$ 3,077
Investment, Identifier [Axis]: Team Car Care Holdings, First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 13,868		$ 13,868		$ 14,311
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TeamCarCareHoldingsLLCMember		whf:TeamCarCareHoldingsLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 14,363
Ending Fair Value	$ 13,902		13,902		$ 14,363
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					Telestream Holdings Corporation
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			3
Ending Fair Value					$ 3
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 918		$ 918		$ 910
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Telestream Holdings Corporation		Telestream Holdings Corporation
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 928
Ending Fair Value	$ 930		930		$ 928
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 15,607		$ 15,607		$ 15,556
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			Telestream Holdings Corporation		Telestream Holdings Corporation
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 15,762
Ending Fair Value	$ 15,758		$ 15,758		$ 15,762
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Revolving Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 790
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TheKyjenCompanyLLCMember		whf:TheKyjenCompanyLLCMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 724
Ending Fair Value	$ (58)		(58)		$ 724
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 11,264		$ 11,264		$ 11,223
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TheKyjenCompanyLLCMember		whf:TheKyjenCompanyLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 10,429
Ending Fair Value	$ 10,564		10,564		$ 10,429
Investment, Identifier [Axis]: Token Buyer, Inc First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 6,688		$ 6,688		$ 6,680
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TokenBuyerIncMember		whf:TokenBuyerIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 6,615
Ending Fair Value	$ 6,171		6,171		$ 6,615
Investment, Identifier [Axis]: Transervice Holdings, Inc. (d/b/a Transervice Logistics, Inc.) First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 8,730		$ 8,730
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TranserviceHoldingsIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 8,730		$ 8,730
Investment, Identifier [Axis]: Trimlite Buyer LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 15,439		$ 15,439		$ 16,162
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TrimliteBuyerLLCMember		whf:TrimliteBuyerLLCMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 14,926
Ending Fair Value	$ 14,661		14,661		$ 14,926
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Delayed Draw Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 4,107
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:TrueBlueCarWashLLCMember
Investment type					whf:FirstLienSecuredDelayedDrawLoanMember
Beginning Fair Value			4,189
Ending Fair Value					$ 4,189
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment					$ 9,822
Schedule of investments in and advances to affiliated and controlled persons
Issuer name					whf:TrueBlueCarWashLLCMember
Investment type					First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 9,942
Ending Fair Value					$ 9,942
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/28
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TurnberrySolutionsInc.Member		whf:TurnberrySolutionsInc.Member
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ (4)
Ending Fair Value					$ (4)
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/26
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 5,980		$ 5,980		$ 5,998
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:TurnberrySolutionsInc.Member		whf:TurnberrySolutionsInc.Member
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 5,964
Ending Fair Value	$ 5,983		$ 5,983		$ 5,964
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Delayed Draw Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:UsMethanolMidcoLlcMember		whf:UsMethanolMidcoLlcMember
Investment type	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Ending Fair Value	$ (81)		$ (81)
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 4,868		$ 4,868		$ 4,551
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:UsMethanolMidcoLlcMember		whf:UsMethanolMidcoLlcMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 4,551
Ending Fair Value	$ 4,874		4,874		$ 4,551
Investment, Identifier [Axis]: UserZoom Technologies, Inc. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 9,546		$ 9,546
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:UserzoomTechnologiesIncMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Ending Fair Value	$ 9,626		$ 9,626
Investment, Identifier [Axis]: Vistria Blocked MGT Investor, LP (d/b/a MGT Consulting Group) Series A Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 314		$ 314
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:VistriaBlockedMgtInvestorLpMember
Investment type	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Ending Fair Value	$ 314		$ 314
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Revolving Loan
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WHLessorCorpMember		whf:WHLessorCorpMember
Investment type	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Beginning Fair Value			$ 4
Ending Fair Value	$ 3		3		$ 4
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Term Loan
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 7,381		$ 7,381		$ 7,402
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WHLessorCorpMember		whf:WHLessorCorpMember
Investment type	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Beginning Fair Value			$ 7,470
Ending Fair Value	$ 7,432		$ 7,432		$ 7,470
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Equity
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WHFSTRSOhioSeniorLoanFundLLCMember		whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment type	Equity (excluding STRS JV)		Equity (excluding STRS JV)		Equity (excluding STRS JV)
Dividends, interest and PIK included in income			$ 2,945		$ 6,977
Beginning Fair Value			20,160	15,607	15,607
Gross Additions			368		5,000
Net Change in Unrealized Appreciation (Depreciation)			401		(447)
Ending Fair Value	$ 20,929		20,929		20,160
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Interests
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 20,368		$ 20,368		$ 20,000
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WHFSTRSOhioSeniorLoanFundMember		whf:WHFSTRSOhioSeniorLoanFundMember
Investment type	whf:LLCInterestsMember		whf:LLCInterestsMember		whf:LLCInterestsMember
Beginning Fair Value			$ 20,160
Ending Fair Value	$ 20,929		20,929		$ 20,160
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Subordinated Note
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 81,472		$ 81,472		$ 80,000
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WHFSTRSOhioSeniorLoanFundLLCMember		whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment type	Subordinated Notes		Subordinated Notes		Subordinated Notes
Dividends, interest and PIK included in income			$ 4,538		$ 6,385
Beginning Fair Value			80,000	$ 60,000	60,000
Gross Additions			1,472		20,000
Ending Fair Value	$ 81,472		81,472		80,000
Investment, Identifier [Axis]: What If Media Group, LLC Common Units
Investments in and Advances to Affiliates [Line Items]
Cost of investment	$ 851		$ 851		$ 851
Schedule of investments in and advances to affiliated and controlled persons
Issuer name			whf:WhatIfMediaGroupLLCMember		whf:WhatIfMediaGroupLLCMember
Investment type	whf:CommonUnitsMember		whf:CommonUnitsMember		whf:CommonUnitsMember
Beginning Fair Value			$ 1,943
Ending Fair Value	$ 1,618		$ 1,618		$ 1,943

XML

INVESTMENTS - WHF STRS Ohio Senior Loan Fund LLC (Details) $ in Thousands					1 Months Ended	6 Months Ended		12 Months Ended
	May 18, 2023	Jan. 13, 2023 USD ($)	Mar. 11, 2022 USD ($)	Jul. 15, 2021	Jul. 31, 2019	Jun. 30, 2023 USD ($) company	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) company	Feb. 28, 2023 USD ($)	Mar. 10, 2022 USD ($)	Feb. 28, 2022 USD ($)	Jan. 27, 2021 USD ($)	Jul. 19, 2019 USD ($)	Jan. 14, 2019 USD ($)
Schedule of Investments [Line Items]
Investments						$ 728,352		$ 760,228
Cost of investment						760,023		782,429
Increase in credit facility limit						301	$ 314
Available						96,351		79,855
Amortized Cost, credit facility						$ 424,711		440,427
LIBOR or SOFR | Minimum
Schedule of Investments [Line Items]
Term of interest					3 years	3 years
LIBOR or SOFR | Maximum
Schedule of Investments [Line Items]
Term of interest					6 years	6 years
SONIA or CDOR
Schedule of Investments [Line Items]
Variable interest rate (as a percent)						2.35%
Subordinated Notes
Schedule of Investments [Line Items]
Investments						$ 167		167
Cost of investment						167		167
Equity (excluding STRS JV)
Schedule of Investments [Line Items]
Investments						36,681		41,160
Cost of investment						$ 45,230		$ 46,486
STRS JV
Schedule of Investments [Line Items]
Combined investment commitment in joint venture														$ 125,000
Investment commitment in joint venture									$ 115,000		$ 100,000			75,000
Increase in investment commitment in joint venture									$ 15,000		$ 25,000
Economic ownership (as a percent)						65.71%		66.67%	65.71%		66.67%
Investments						$ 343,531		$ 305,296
Portfolio companies | company						32		28
Largest single investment						$ 19,399		$ 20,086
Five largest investments						82,846		77,635
STRS JV | STRS JV Credit Facility
Schedule of Investments [Line Items]
Maximum borrowing limit		$ 262,500	$ 225,000			262,500		225,000				$ 175,000	$ 125,000
Increase in credit facility limit		37,500
Variable interest rate (as a percent)				2.35%
Available			168,750							$ 131,250
Borrowings greater than		$ 175,000	$ 175,000
Amortized Cost, credit facility						$ 184,644		$ 152,277
Effective interest rate (as a percent)						7.60%		6.60%
STRS JV | STRS JV Credit Facility | SOFR
Schedule of Investments [Line Items]
Maximum borrowing limit								$ 175,000
Variable interest rate (as a percent)	2.72%		2.50%			2.72%		2.50%
STRS JV | STRS JV Credit Facility | SOFR | Borrowings under $37.5 million
Schedule of Investments [Line Items]
Variable interest rate (as a percent)		3.00%
STRS JV | STRS JV Credit Facility | SOFR | Borrowings above $175,000
Schedule of Investments [Line Items]
Variable interest rate (as a percent)		2.71%
STRS JV | STRS JV Credit Facility | LIBOR, SONIA or CDOR
Schedule of Investments [Line Items]
Maximum borrowing limit								$ 175,000
Variable interest rate (as a percent)								2.35%
STRS JV | Subordinated Notes
Schedule of Investments [Line Items]
Investment commitment in joint venture									$ 92,000		$ 80,000
Cost of investment								$ 81,472
Commitments to fund subordinated notes						$ 92,000		80,000
Unfunded subordinated notes						10,528
STRS JV | Equity (excluding STRS JV)
Schedule of Investments [Line Items]
Investment commitment in joint venture									23,000		$ 20,000
Cost of investment						20,368
Commitments to fund equity interests						23,000		$ 20,000
Unfunded equity interests						$ 2,632
STRS JV | STRS Ohio
Schedule of Investments [Line Items]
Investment commitment in joint venture									60,000					$ 50,000
Increase in investment commitment in joint venture									$ 10,000
Economic ownership (as a percent)						34.29%		33.33%	34.29%		33.33%
STRS JV | STRS Ohio | Subordinated Notes
Schedule of Investments [Line Items]
Investment commitment in joint venture									$ 48,000
STRS JV | STRS Ohio | Equity (excluding STRS JV)
Schedule of Investments [Line Items]
Investment commitment in joint venture									$ 12,000

XML

INVESTMENTS - STRS JVs individual Investments (Details) £ in Thousands, $ in Thousands, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2023 CAD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2021 USD ($)
Schedule of Investments [Line Items]
Investment Owned, at Cost	$ 760,023	$ 782,429
Investment Owned, at Fair Value	728,352	760,228
STRS JV
Schedule of Investments [Line Items]
Investment Owned, at Cost	326,219	287,940
Investments owned non-accrual status	0	0
Investment Owned, at Fair Value	$ 324,501	$ 284,259
Fair Value As A Percentage of Member's Equity	1018.84%	940.05%
Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 714,793	$ 735,943
Investment Owned, at Fair Value	$ 691,671	$ 719,068
Advertising
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Interest Rate, Floor		6.75%		6.75%	6.75%
Investment Owned, at Cost	$ 12,047	$ 11,760
Investment Owned, at Fair Value	$ 11,904	$ 11,703
Fair Value As A Percentage of Member's Equity	37.38%	38.71%
Advertising | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 4,613
Investment Owned, at Fair Value	$ 4,613
Air Freight & Logistics
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Interest Rate, Floor		6.50%		6.50%	6.50%
Investment Owned, at Cost	$ 3,513	$ 3,523
Investment Owned, at Fair Value	$ 3,524	$ 3,545
Fair Value As A Percentage of Member's Equity	11.07%	11.72%
Air Freight & Logistics | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 25,551	$ 15,819
Investment Owned, at Fair Value	$ 25,131	15,590
Application Software
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 13,118	13,162
Investment Owned, at Fair Value	$ 13,304	$ 13,375
Fair Value As A Percentage of Member's Equity	41.77%	44.23%
Application Software | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 39,516	$ 29,947
Investment Owned, at Fair Value	$ 35,429	27,117
Broadline Retail
Schedule of Investments [Line Items]
Investment Owned, at Cost		18,920
Investment Owned, at Fair Value		$ 19,113
Fair Value As A Percentage of Member's Equity		63.21%
Broadline Retail | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 34,442	$ 35,005
Investment Owned, at Fair Value	$ 34,541	$ 35,073
Building Products
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Interest Rate, Floor		6.25%		6.25%	6.25%
Investment Owned, at Cost	$ 14,064	$ 14,105
Investment Owned, at Fair Value	$ 13,990	$ 14,132
Fair Value As A Percentage of Member's Equity	43.92%	46.73%
Building Products | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 23,850	$ 25,182
Investment Owned, at Fair Value	$ 22,966	23,576
Construction & Engineering
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 14,911	8,522
Investment Owned, at Fair Value	$ 14,888	$ 8,432
Fair Value As A Percentage of Member's Equity	46.75%	27.88%
Data Processing & Outsourced Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Interest Rate, Floor		6.00%		6.00%	6.00%
Investment Owned, at Cost	$ 15,145	$ 15,413
Investment Owned, at Fair Value	$ 14,717	$ 14,536
Fair Value As A Percentage of Member's Equity	46.20%	48.07%
Data Processing & Outsourced Services | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 22,179	$ 22,776
Investment Owned, at Fair Value	$ 22,129	22,817
Drug Retail
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 5,122
Investment Owned, at Fair Value	$ 5,124
Fair Value As A Percentage of Member's Equity	16.08%
Diversified Support Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 12,173	12,192
Investment Owned, at Fair Value	$ 12,021	$ 11,729
Fair Value As A Percentage of Member's Equity	37.75%	38.79%
Diversified Support Services | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 9,559	$ 11,199
Investment Owned, at Fair Value	$ 9,262	$ 10,833
Electronic Equipment & Instruments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Interest Rate, Floor		6.00%		6.00%	6.00%
Investment Owned, at Cost	$ 13,243	$ 13,284
Investment Owned, at Fair Value	$ 13,180	$ 13,187
Fair Value As A Percentage of Member's Equity	41.38%	43.61%
Environmental & Facilities Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 27,195	$ 20,725
Investment Owned, at Fair Value	$ 27,289	$ 20,708
Fair Value As A Percentage of Member's Equity	85.68%	68.48%
Environmental & Facilities Services | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 11,661	$ 18,031
Investment Owned, at Fair Value	$ 11,408	17,859
Household Appliances
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 7,833	7,859
Investment Owned, at Fair Value	$ 8,034	$ 7,885
Fair Value As A Percentage of Member's Equity	25.22%	26.08%
Household Appliances | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 6,688	$ 6,680
Investment Owned, at Fair Value	$ 6,171	6,615
Industrial Machinery
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 19,155	15,145
Investment Owned, at Fair Value	$ 19,233	$ 14,999
Fair Value As A Percentage of Member's Equity	60.38%	49.60%
Industrial Machinery | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 7,560	$ 9,633
Investment Owned, at Fair Value	$ 6,899	9,360
Internet & Direct Marketing Retail
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 18,833
Investment Owned, at Fair Value	$ 18,900
Fair Value As A Percentage of Member's Equity	59.34%
Investment Banking & Brokerage
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 5,232	5,507
Investment Owned, at Fair Value	$ 5,261	$ 5,545
Fair Value As A Percentage of Member's Equity	16.52%	18.34%
Investment Banking & Brokerage | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 9,312	$ 11,833
Investment Owned, at Fair Value	$ 9,325	11,860
IT Consulting And Other Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 51,090	34,184
Investment Owned, at Fair Value	$ 50,955	$ 33,461
Fair Value As A Percentage of Member's Equity	159.98%	110.66%
IT Consulting And Other Services | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 3,758	$ 13,620
Investment Owned, at Fair Value	$ 3,735	$ 13,487
Leisure Products | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 14,898	$ 14,055
Investment Owned, at Fair Value	$ 13,749	13,366
Packaged Foods & Meats
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 7,060	12,312
Investment Owned, at Fair Value	$ 7,002	$ 12,069
Fair Value As A Percentage of Member's Equity	21.98%	39.91%
Packaged Foods & Meats | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost		$ 11,198
Investment Owned, at Fair Value		10,941
Paper Packaging
Schedule of Investments [Line Items]
Investment Owned, at Cost	$ 6,506	8,085
Investment Owned, at Fair Value	$ 6,481	$ 8,059
Fair Value As A Percentage of Member's Equity	20.34%	26.65%
Personal Products
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 5,973	$ 3,895
Investment Owned, at Fair Value	$ 6,026	$ 3,949
Fair Value As A Percentage of Member's Equity	18.92%	13.06%
Personal Products | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 11,181	$ 13,694
Investment Owned, at Fair Value	$ 11,182	13,482
Pharmaceuticals
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 16,173	15,487
Investment Owned, at Fair Value	$ 15,621	$ 14,712
Fair Value As A Percentage of Member's Equity	49.05%	48.65%
Real Estate Operating Companies
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 12,067	$ 11,246
Investment Owned, at Fair Value	$ 11,950	$ 11,121
Fair Value As A Percentage of Member's Equity	37.52%	36.78%
Real Estate Operating Companies | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 5,925	$ 5,309
Investment Owned, at Fair Value	$ 5,917	5,309
Real Estate Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 8,332	9,063
Investment Owned, at Fair Value	$ 7,584	$ 8,548
Fair Value As A Percentage of Member's Equity	23.82%	28.27%
Research & Consulting Services
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 8,746	$ 8,782
Investment Owned, at Fair Value	$ 8,736	$ 8,686
Fair Value As A Percentage of Member's Equity	27.43%	28.72%
Research & Consulting Services | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 21,596	$ 22,050
Investment Owned, at Fair Value	$ 21,713	$ 21,896
Systems Software | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 19,568	$ 19,353
Investment Owned, at Fair Value	$ 15,188	17,847
Technology Hardware, Storage & Peripherals
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 18,875	14,874
Investment Owned, at Fair Value	$ 18,942	$ 14,884
Fair Value As A Percentage of Member's Equity	59.47%	49.22%
Technology Hardware, Storage & Peripherals | Debt Investments
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment Owned, at Cost	$ 16,525	$ 16,466
Investment Owned, at Fair Value	$ 16,688	16,693
Trading Companies & Distributors
Schedule of Investments [Line Items]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment Owned, at Cost	$ 9,813	9,895
Investment Owned, at Fair Value	$ 9,835	$ 9,881
Fair Value As A Percentage of Member's Equity	30.88%	32.68%
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:ABBCon-ciseOpticalGroupLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Health Care Supplies [Member]		Health Care Supplies [Member]	Health Care Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Base Rate [Member]		Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor		0.75%		0.75%	0.75%
Investment, Basis Spread, Variable Rate		6.51%		6.51%	6.51%
Investment Interest Rate		13.98%		13.98%	13.98%
Investment, Acquisition Date		Feb. 23, 2022
Investment Maturity Date		Feb. 23, 2028		Feb. 23, 2028	Feb. 23, 2028
Investment Owned, Balance, Principal Amount		$ 2,151
Investment Owned, at Cost		2,105
Investment Owned, at Fair Value		$ 2,093
Investment, Identifier [Axis]: ABB/Con-cise Optical Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ABBCon-ciseOpticalGroupLLCMember	whf:ABBCon-ciseOpticalGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Supplies [Member]	Health Care Supplies [Member]	Health Care Supplies [Member]	Health Care Supplies [Member]	Health Care Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	0.75%	0.75%	0.75%	0.75%	0.75%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.88%	12.67%	12.88%	12.67%	12.67%
Investment, Acquisition Date	Feb. 23, 2022	Feb. 23, 2022
Investment Maturity Date	Feb. 23, 2028	Feb. 23, 2028	Feb. 23, 2028	Feb. 23, 2028	Feb. 23, 2028
Investment Owned, Balance, Principal Amount	$ 20,358	$ 21,573
Investment Owned, at Cost	19,964	21,110
Investment Owned, at Fair Value	$ 19,333	$ 20,997
Investment, Identifier [Axis]: ALM Media, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ALMMediaLLCMember	whf:ALMMediaLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.50%	6.00%	6.50%	6.50%
Investment Interest Rate	11.39%	10.91%	11.39%	10.91%	10.91%
Investment, Acquisition Date	Nov. 25, 2019	Nov. 25, 2019
Investment Maturity Date	Nov. 25, 2024	Nov. 25, 2024	Nov. 25, 2024	Nov. 25, 2024	Nov. 25, 2024
Investment Owned, Balance, Principal Amount	$ 12,932	$ 13,388
Investment Owned, at Cost	12,859	13,286
Investment Owned, at Fair Value	$ 12,853	$ 13,255
Investment, Identifier [Axis]: ATSG Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ATSGIncMember	whf:ATSGIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.72%	11.14%	11.72%	11.14%	11.14%
Investment, Acquisition Date	Nov. 12, 2021	Nov. 12, 2021
Investment Maturity Date	Nov. 12, 2026	Nov. 12, 2026	Nov. 12, 2026	Nov. 12, 2026	Nov. 12, 2026
Investment Owned, Balance, Principal Amount	$ 3,809	$ 13,833
Investment Owned, at Cost	3,758	13,620
Investment Owned, at Fair Value	$ 3,735	$ 13,487
Investment, Identifier [Axis]: ATSG, First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ATSGIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.72%		11.72%
Investment, Acquisition Date	Mar. 27, 2023
Investment Maturity Date	Nov. 12, 2026		Nov. 12, 2026
Investment Owned, Balance, Principal Amount	$ 9,937
Investment Owned, at Cost	9,706
Investment Owned, at Fair Value	$ 9,744
Fair Value As A Percentage of Member's Equity	30.60%
Investment, Identifier [Axis]: Aeyon LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AeyonLLCMember	whf:AeyonLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services	Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.88%	8.88%	8.88%	8.88%	8.88%
Investment Interest Rate	13.97%	13.19%	13.97%	13.19%	13.19%
Investment, Acquisition Date	Feb. 10, 2022	Feb. 10, 2022
Investment Maturity Date	Feb. 10, 2027	Feb. 10, 2027	Feb. 10, 2027	Feb. 10, 2027	Feb. 10, 2027
Investment Owned, Balance, Principal Amount	$ 8,865	$ 8,910
Investment Owned, at Cost	8,737	8,764
Investment Owned, at Fair Value	$ 8,860	$ 8,641
Investment, Identifier [Axis]: American Crafts Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]
Investment, Acquisition Date	Dec. 22, 2022	Dec. 22, 2022
Investment Maturity Date	Dec. 22, 2032	Dec. 22, 2032	Dec. 22, 2032	Dec. 22, 2032	Dec. 22, 2032
Investment, Identifier [Axis]: American Crafts LC First Lien Secured Term Loan One
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment Owned, at Fair Value	$ 6,827
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.50%	8.50%	8.50%	8.50%	8.50%
Investment Interest Rate		12.88%		12.88%	12.88%
Investment, Acquisition Date	Jan. 25, 2022	Oct. 01, 2022
Investment Maturity Date	May 28, 2026	May 28, 2026	May 28, 2026	May 28, 2026	May 28, 2026
Investment Owned, Balance, Principal Amount	$ 1,476	$ 1,367
Investment Owned, at Cost	1,458	1,346
Investment Owned, at Fair Value	$ 1,146	$ 1,147
Investment, Interest Rate, Paid in Kind	13.69%		13.69%
Investment, Identifier [Axis]: American Crafts, LC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.50%	8.50%	8.50%	8.50%	8.50%
Investment Interest Rate		12.88%		12.88%	12.88%
Investment, Acquisition Date	May 28, 2021	May 28, 2021
Investment Maturity Date	May 28, 2026	May 28, 2026	May 28, 2026	May 28, 2026	May 28, 2026
Investment Owned, Balance, Principal Amount	$ 8,791	$ 9,555
Investment Owned, at Cost	8,720	9,473
Investment Owned, at Fair Value	$ 6,827	$ 8,244
Investment, Interest Rate, Paid in Kind	13.69%		13.69%
Investment, Identifier [Axis]: American Crafts, LC Priority First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AmericanCraftsLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredTermLoanMember		whf:PriorityFirstLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]		Office Services And Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	8.50%		8.50%
Investment, Acquisition Date	Dec. 22, 2022
Investment Maturity Date	May 28, 2026		May 28, 2026
Investment Owned, Balance, Principal Amount	$ 4,750
Investment Owned, at Cost	4,750
Investment Owned, at Fair Value	$ 4,605
Investment, Interest Rate, Paid in Kind	13.69%		13.69%
Investment, Identifier [Axis]: Arcole Holding Corporation Shares
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ArcoleHoldingCorporationMember	whf:ArcoleHoldingCorporationMember
Investment, Type [Extensible Enumeration]	Equity Investments	Equity Investments	Equity Investments	Equity Investments	Equity Investments
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Investment Banking & Brokerage		Investment Banking & Brokerage	Investment Banking & Brokerage
Investment, Acquisition Date		Oct. 01, 2020
Investment Owned, at Cost		$ 6,944
Investment Owned, at Fair Value		$ 6,380				$ 6,874
Investment, Identifier [Axis]: Arcstor Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ArcstorMidcoLLCMember	whf:ArcstorMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Systems Software	Systems Software	Systems Software	Systems Software	Systems Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.70%	11.92%	12.70%	11.92%	11.92%
Investment, Acquisition Date	Mar. 16, 2021	Mar. 16, 2021
Investment Maturity Date	Mar. 16, 2027	Mar. 16, 2027	Mar. 16, 2027	Mar. 16, 2027	Mar. 16, 2027
Investment Owned, Balance, Principal Amount	$ 20,237	$ 19,623
Investment Owned, at Cost	19,568	19,353
Investment Owned, at Fair Value	$ 15,188	$ 17,847
Investment, Interest Rate, Paid in Kind	3.75%	3.75%	3.75%	3.75%	3.75%
Investment, Interest Rate, Paid in Cash	8.95%	8.17%	8.95%	8.17%	8.17%
Investment, Identifier [Axis]: Atlas Purchaser, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AtlasPurchaserIncMember	whf:AtlasPurchaserIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software	Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	0.75%	0.75%	0.75%	0.75%	0.75%
Investment, Basis Spread, Variable Rate	5.25%	5.25%	5.25%	5.25%	5.25%
Investment Interest Rate	10.39%	8.68%	10.39%	8.68%	8.68%
Investment, Acquisition Date	Aug. 29, 2022	Aug. 29, 2022
Investment Maturity Date	May 08, 2028	May 08, 2028	May 08, 2028	May 08, 2028	May 08, 2028
Investment Owned, Balance, Principal Amount	$ 3,082	$ 3,097
Investment Owned, at Cost	2,643	2,611
Investment Owned, at Fair Value	$ 2,348	$ 2,556
Investment, Identifier [Axis]: Atlas Purchaser, Inc Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AtlasPurchaserIncMember	whf:AtlasPurchaserIncMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software	Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	0.75%	0.75%	0.75%	0.75%	0.75%
Investment, Basis Spread, Variable Rate	9.00%	9.00%	9.00%	9.00%	9.00%
Investment Interest Rate	14.50%	14.20%	14.50%	14.20%	14.20%
Investment, Acquisition Date	May 03, 2021	May 03, 2021
Investment Maturity Date	May 07, 2029	May 07, 2029	May 07, 2029	May 07, 2029	May 07, 2029
Investment Owned, Balance, Principal Amount	$ 15,000	$ 15,000
Investment Owned, at Cost	14,670	14,642
Investment Owned, at Fair Value	$ 10,876	$ 11,969
Investment, Identifier [Axis]: Avision Holdings, LLC Class A LLC Interests
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:AvisionHoldingsLLCMember	whf:AvisionHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember	whf:ClassALLCInterestsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising	Advertising	Advertising	Advertising	Advertising
Investment, Acquisition Date	Dec. 15, 2021	Dec. 15, 2021
Investment Owned, Balance, Principal Amount	$ 218	$ 208
Investment Owned, at Cost	268	258
Investment Owned, at Fair Value	$ 296	$ 154
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	10.50%	9.00%	10.50%	9.00%	9.00%
Investment Interest Rate	15.70%	13.38%	15.70%	13.38%	13.38%
Investment, Acquisition Date	Dec. 02, 2021	Apr. 29, 2022
Investment Maturity Date	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025
Investment Owned, Balance, Principal Amount	$ 2,617	$ 2,593
Investment Owned, at Cost	2,588	2,557
Investment Owned, at Fair Value	$ 2,588	$ 2,541
Investment, Interest Rate, Paid in Kind	2.00%	1.00%	2.00%	1.00%	1.00%
Investment, Interest Rate, Paid in Cash	13.70%	12.38%	13.70%	12.38%	12.38%
Investment, Identifier [Axis]: BBQ Buyer, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	10.50%	9.00%	10.50%	9.00%	9.00%
Investment Interest Rate	15.70%	13.38%	15.70%	13.38%	13.38%
Investment, Acquisition Date	Aug. 28, 2020	Aug. 28, 2020
Investment Maturity Date	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025	Aug. 28, 2025
Investment Owned, Balance, Principal Amount	$ 12,837	$ 12,720
Investment Owned, at Cost	12,700	12,550
Investment Owned, at Fair Value	$ 12,694	$ 12,465
Investment, Interest Rate, Paid in Kind	2.00%	1.00%	2.00%	1.00%	1.00%
Investment, Interest Rate, Paid in Cash	13.70%	12.38%	13.70%	12.38%	12.38%
Investment, Identifier [Axis]: BBQ Buyer, LLC Shares
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BBQBuyerLLCMember	whf:BBQBuyerLLCMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Acquisition Date	Aug. 28, 2020	Aug. 28, 2020
Investment Owned, Balance, Principal Amount	$ 1,100	$ 1,100
Investment Owned, at Cost	1,100	1,100
Investment Owned, at Fair Value	$ 1,176	$ 1,404
Investment, Identifier [Axis]: BL Products Parent, LP Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery	Industrial Machinery	Industrial Machinery	Industrial Machinery	Industrial Machinery
Investment, Acquisition Date	Feb. 01, 2022	Feb. 01, 2022
Investment Owned, Balance, Principal Amount	$ 733	$ 667
Investment Owned, at Cost	788	667
Investment Owned, at Fair Value	$ 1,190	$ 514
Investment, Identifier [Axis]: BLP Buyer, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Industrial Machinery		Industrial Machinery	Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.25%		1.25%	1.25%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		10.21%		10.21%	10.21%
Investment, Acquisition Date		Oct. 03, 2022
Investment Maturity Date		Feb. 01, 2027		Feb. 01, 2027	Feb. 01, 2027
Investment Owned, Balance, Principal Amount		$ 2,149
Investment Owned, at Cost		2,098
Investment Owned, at Fair Value		$ 2,091
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 10.67%, Due 2/1/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.44%	10.67%	11.44%	10.67%	10.67%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027
Investment Owned, Balance, Principal Amount	$ 574	$ 274
Investment Owned, at Cost	566	270
Investment Owned, at Fair Value	$ 565	$ 259
Fair Value As A Percentage of Member's Equity	1.77%	0.86%
Investment, Identifier [Axis]: BLP Buyer., First Lien Secured Term Loan, Floor 1.25%, Spread SF plus 6.25%, Rate 10.49%, Due 2/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BLProductsParentLPMember	whf:BLProductsParentLPMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.37%	1.25%	1.37%	1.25%	1.25%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.61%	10.49%	11.61%	10.49%	10.49%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027	Feb. 01, 2027
Investment Owned, Balance, Principal Amount	$ 12,285	$ 8,188
Investment Owned, at Cost	12,068	8,054
Investment Owned, at Fair Value	$ 12,074	$ 7,939
Fair Value As A Percentage of Member's Equity	37.91%	26.25%
Investment, Identifier [Axis]: BPII-JL Group Holdings LP Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BPII-JLGroupHoldingsLPMember	whf:BPII-JLGroupHoldingsLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember	whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Acquisition Date	Dec. 29, 2021	Dec. 29, 2021
Investment Owned, Balance, Principal Amount	$ 83	$ 83
Investment Owned, at Cost	825	825
Investment Owned, at Fair Value	$ 972	$ 600
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment Interest Rate	12.90%	12.04%	12.90%	12.04%	12.04%
Investment, Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Investment Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026
Investment Owned, at Fair Value	$ (14)	$ (14)
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment Interest Rate	12.90%	12.04%	12.90%	12.04%	12.04%
Investment, Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Investment Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026
Investment Owned, at Fair Value	$ (17)	$ (16)
Investment, Identifier [Axis]: Bridgepoint Healthcare, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BridgepointHealthcareLLCMember	whf:BridgepointHealthcareLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]	Health Care Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment Interest Rate	12.90%	12.04%	12.90%	12.04%	12.04%
Investment, Acquisition Date	Oct. 05, 2021	Oct. 05, 2021
Investment Maturity Date	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026	Oct. 05, 2026
Investment Owned, Balance, Principal Amount	$ 10,145	$ 10,423
Investment Owned, at Cost	10,012	10,266
Investment Owned, at Fair Value	$ 9,902	$ 10,161
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BulkMidcoLLCMember	whf:BulkMidcoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.70%	11.64%	12.70%	11.64%	11.64%
Investment, Acquisition Date	Oct. 28, 2022	Oct. 28, 2022
Investment Maturity Date	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024
Investment Owned, Balance, Principal Amount	$ 2,000	$ 2,000
Investment Owned, at Cost	1,977	1,963
Investment Owned, at Fair Value	$ 1,944	$ 1,964
Investment, Interest Rate, Paid in Kind	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Interest Rate, Paid in Cash	11.70%	10.64%	11.70%	10.64%	10.64%
Investment, Identifier [Axis]: Bulk Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:BulkMidcoLLCMember	whf:BulkMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]	Cable And Satellite [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.70%	11.64%	12.70%	11.64%	11.64%
Investment, Acquisition Date	Oct. 28, 2022	Oct. 28, 2022
Investment Maturity Date	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024	Jun. 10, 2024
Investment Owned, Balance, Principal Amount	$ 19,208	$ 19,228
Investment Owned, at Cost	19,142	19,126
Investment Owned, at Fair Value	$ 18,668	$ 18,525
Investment, Interest Rate, Paid in Kind	1.00%		1.00%
Investment, Interest Rate, Paid in Cash	11.70%		11.70%
Investment, Identifier [Axis]: CX Holdco LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CXHoldcoLLCMember	whf:CXHoldcoLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services
Investment, Acquisition Date	May 04, 2021	May 04, 2021
Investment Owned, Balance, Principal Amount	$ 1,068	$ 1,068
Investment Owned, at Cost	1,116	1,116
Investment Owned, at Fair Value	$ 1,406	$ 1,558
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:CampFacilityServicesHoldingsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services [Member]		Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		10.89%		10.89%	10.89%
Investment, Acquisition Date		Nov. 16, 2021
Investment Maturity Date		Nov. 16, 2027		Nov. 16, 2027	Nov. 16, 2027
Investment Owned, at Fair Value		$ (96)
Investment, Identifier [Axis]: Camp Facility Services Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CampFacilityServicesHoldingsLLCMember	whf:CampFacilityServicesHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.70%	10.89%	11.70%	10.89%	10.89%
Investment, Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Investment Maturity Date	Nov. 16, 2027	Nov. 16, 2027	Nov. 16, 2027	Nov. 16, 2027	Nov. 16, 2027
Investment Owned, Balance, Principal Amount	$ 11,733	$ 11,798
Investment Owned, at Cost	11,561	11,606
Investment Owned, at Fair Value	$ 11,308	$ 11,326
Investment, Identifier [Axis]: Camp Facility Services Parent, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CampFacilityServicesParentLLCMember	whf:CampFacilityServicesParentLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Basis Spread, Variable Rate	10.00%	10.00%	10.00%	10.00%	10.00%
Investment, Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Investment Owned, Balance, Principal Amount	$ 15	$ 15
Investment Owned, at Cost	840	840
Investment Owned, at Fair Value	$ 974	$ 927
Investment, Interest Rate, Paid in Kind	10.00%	10.00%	10.00%	10.00%	10.00%
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Revolving Loan, Base Rate Floor 1.00%, Spread Rate plus 5.17%, Rate 12.10%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate		10.99%		10.99%	10.99%
Investment, Acquisition Date	Jul. 16, 2021	Jul. 16, 2021
Investment Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026
Investment Owned, Balance, Principal Amount	$ 864
Investment Owned, at Cost	1,179
Investment Owned, at Fair Value	$ 1,064	$ (161)
Fair Value As A Percentage of Member's Equity	3.34%	(0.53%)
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 10.02%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate		10.02%		10.02%	10.02%
Investment, Acquisition Date	Jul. 16, 2021	Jul. 16, 2021
Investment Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026
Investment Owned, Balance, Principal Amount	$ 2,830	$ 2,837
Investment Owned, at Cost	3,862	3,863
Investment Owned, at Fair Value	$ 3,484	$ 3,343
Fair Value As A Percentage of Member's Equity	10.94%	11.06%
Investment, Identifier [Axis]: Cennox Holdings Limited., First lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.99%, Due 5/4/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CennoxHoldingsLimitedMember	whf:CennoxHoldingsLimitedMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate		10.99%		10.99%	10.99%
Investment, Acquisition Date	Jun. 28, 2022	Jun. 28, 2022
Investment Maturity Date	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026	May 04, 2026
Investment Owned, Balance, Principal Amount	$ 9,434	$ 9,458
Investment Owned, at Cost	9,836	9,834
Investment Owned, at Fair Value	$ 10,120	$ 9,926
Fair Value As A Percentage of Member's Equity	31.77%	32.82%
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ChaseProductsCoMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment Owned, at Fair Value	$ 2,589
Investment, Interest Rate, Paid in Kind	12.00%		12.00%
Investment, Identifier [Axis]: Chase Products Co. (f/k/a Starco) First Lien Secured Term Loan 12.00 PIK
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ChaseProductsCoMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals [Member]		Diversified Chemicals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Basis Spread, Variable Rate	12.00%		12.00%
Investment, Acquisition Date	Mar. 16, 2023
Investment Maturity Date	Mar. 16, 2028		Mar. 16, 2028
Investment Owned, Balance, Principal Amount	$ 2,790
Investment Owned, at Cost	2,790
Investment Owned, at Fair Value	$ 2,589
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ClaridgeProductsandEquipmentLLCMember	whf:ClaridgeProductsandEquipmentLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	5.88%	8.00%	5.88%	5.88%
Investment Interest Rate	13.09%	12.28%	13.09%	12.28%	12.28%
Investment, Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Investment Maturity Date	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025
Investment Owned, Balance, Principal Amount	$ 632	$ 779
Investment Owned, at Cost	627	772
Investment Owned, at Fair Value	$ 568	$ 732
Investment, Interest Rate, Paid in Kind	1.50%		1.50%
Investment, Interest Rate, Paid in Cash	11.59%		11.59%
Investment, Identifier [Axis]: Claridge Products and Equipment, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ClaridgeProductsandEquipmentLLCMember	whf:ClaridgeProductsandEquipmentLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]	Construction Materials [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	6.50%	8.00%	6.50%	6.50%
Investment Interest Rate	13.39%	11.23%	13.39%	11.23%	11.23%
Investment, Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Investment Maturity Date	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025	Dec. 29, 2025
Investment Owned, Balance, Principal Amount	$ 7,409	$ 7,079
Investment Owned, at Cost	7,338	6,994
Investment Owned, at Fair Value	$ 6,907	$ 6,727
Investment, Interest Rate, Paid in Kind	1.50%		1.50%
Investment, Interest Rate, Paid in Cash	11.89%		11.89%
Investment, Identifier [Axis]: CleanChoice Energy, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CleanChoiceEnergyIncMember	whf:CleanChoiceEnergyIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electric Utilities [Member]	Electric Utilities [Member]	Electric Utilities [Member]	Electric Utilities [Member]	Electric Utilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.58%	7.25%	7.58%	7.25%	7.25%
Investment Interest Rate	12.73%	11.33%	12.73%	11.33%	11.33%
Investment, Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Investment Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026
Investment Owned, Balance, Principal Amount	$ 15,955	$ 10,500
Investment Owned, at Cost	15,672	10,341
Investment Owned, at Fair Value	$ 15,743	$ 10,411
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CoastalTelevisionBroadcastingGroupLLCMember	whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	6.50%	7.00%	6.50%	6.50%
Investment Interest Rate	12.43%	10.80%	12.43%	10.80%	10.80%
Investment, Acquisition Date	Dec. 30, 2021	Dec. 30, 2021
Investment Maturity Date	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026
Investment Owned, at Fair Value	$ (2)	$ (5)
Investment, Identifier [Axis]: Coastal Television Broadcasting Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:CoastalTelevisionBroadcastingGroupLLCMember	whf:CoastalTelevisionBroadcastingGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]	Broadcasting [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	6.50%	7.00%	6.50%	6.50%
Investment Interest Rate	12.43%	10.80%	12.43%	10.80%	10.80%
Investment, Acquisition Date	Dec. 30, 2021	Dec. 30, 2021
Investment Maturity Date	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026	Dec. 30, 2026
Investment Owned, Balance, Principal Amount	$ 7,573	$ 8,036
Investment Owned, at Cost	7,467	7,908
Investment Owned, at Fair Value	$ 7,417	$ 7,785
Investment, Identifier [Axis]: Drew Foam Companies Inc First Lien Secured Term Loan Due 11/5/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:DrewFoamCompaniesIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		6.00%		6.00%	6.00%
Investment, Basis Spread, Variable Rate		6.75%		6.75%	6.75%
Investment Interest Rate		11.48%		11.48%	11.48%
Investment, Acquisition Date		Nov. 09, 2020
Investment Maturity Date		Nov. 05, 2025		Nov. 05, 2025	Nov. 05, 2025
Investment Owned, Balance, Principal Amount		$ 14,270
Investment Owned, at Cost		14,105
Investment Owned, at Fair Value		$ 14,132
Fair Value As A Percentage of Member's Equity		46.73%
Investment, Identifier [Axis]: Drew Foam Companies Inc, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 11/5/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:DrewFoamCompaniesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.00%		6.00%
Investment Interest Rate	12.14%		12.14%
Investment, Acquisition Date	Nov. 09, 2020
Investment Maturity Date	Nov. 05, 2025		Nov. 05, 2025
Investment Owned, Balance, Principal Amount	$ 14,198
Investment Owned, at Cost	14,064
Investment Owned, at Fair Value	$ 13,990
Fair Value As A Percentage of Member's Equity	43.92%
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.50%, Rate 10.23%, Due 6/23/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:E-PhoenixAcquisitionCo.Inc.Member
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		5.50%		5.50%	5.50%
Investment Interest Rate		10.23%		10.23%	10.23%
Investment, Acquisition Date		Jul. 15, 2021
Investment Maturity Date		Jun. 23, 2027		Jun. 23, 2027	Jun. 23, 2027
Investment Owned, Balance, Principal Amount		$ 8,865
Investment Owned, at Cost		8,782
Investment Owned, at Fair Value		$ 8,686
Fair Value As A Percentage of Member's Equity		28.72%
Investment, Identifier [Axis]: E-Phoenix Acquisition Co. Inc., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 5.75%, Rate 6.75%, Due 6/23/2027
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:E-PhoenixAcquisitionCo.Inc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Research & Consulting Services		Research & Consulting Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	5.75%		5.75%
Investment Interest Rate	11.14%		11.14%
Investment, Acquisition Date	Jul. 15, 2021
Investment Maturity Date	Jun. 23, 2027		Jun. 23, 2027
Investment Owned, Balance, Principal Amount	$ 8,820
Investment Owned, at Cost	8,746
Investment Owned, at Fair Value	$ 8,736
Fair Value As A Percentage of Member's Equity	27.43%
Investment, Identifier [Axis]: Eddy Acquisitions, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EddyAcquisitionsLLCMember	whf:EddyAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]
Investment, Basis Spread, Variable Rate	12.00%	12.00%	12.00%	12.00%	12.00%
Investment Interest Rate	12.00%	12.00%	12.00%	12.00%	12.00%
Investment, Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Investment Owned, Balance, Principal Amount	$ 167	$ 167
Investment Owned, at Cost	167	167
Investment Owned, at Fair Value	$ 73	$ 83
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.20%	11.39%	12.20%	11.39%	11.39%
Investment, Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Investment Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026
Investment Owned, at Fair Value	$ (44)	$ (26)
Investment, Interest Rate, Paid in Kind	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Interest Rate, Paid in Cash	11.70%	10.89%	11.70%	10.89%	10.89%
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.20%	11.39%	12.20%	11.39%	11.39%
Investment, Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Investment Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026
Investment Owned, at Fair Value	$ (31)	$ (18)
Investment, Interest Rate, Paid in Kind	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Interest Rate, Paid in Cash	11.70%	10.89%	11.70%	10.89%	10.89%
Investment, Identifier [Axis]: EducationDynamics, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.20%	11.39%	12.20%	11.39%	11.39%
Investment, Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Investment Maturity Date	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026	Sep. 15, 2026
Investment Owned, Balance, Principal Amount	$ 12,919	$ 13,053
Investment Owned, at Cost	12,755	12,861
Investment Owned, at Fair Value	$ 12,418	$ 12,663
Investment, Interest Rate, Paid in Kind	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Interest Rate, Paid in Cash	11.70%	10.89%	11.70%	10.89%	10.89%
Investment, Identifier [Axis]: EducationDynamics, LLC Subordinated Unsecured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EducationDynamicsLLCMember	whf:EducationDynamicsLLCMember
Investment, Type [Extensible Enumeration]	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember	whf:SubordinatedUnsecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]	Education Services [Member]
Investment, Basis Spread, Variable Rate	4.00%	4.00%	4.00%	4.00%	4.00%
Investment Interest Rate	4.00%	4.00%	4.00%	4.00%	4.00%
Investment, Acquisition Date	Sep. 15, 2021	Sep. 15, 2021
Investment Maturity Date	Mar. 15, 2027	Mar. 15, 2027	Mar. 15, 2027	Mar. 15, 2027	Mar. 15, 2027
Investment Owned, Balance, Principal Amount	$ 167	$ 167
Investment Owned, at Cost	167	167
Investment Owned, at Fair Value	$ 167	$ 167
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EmpireOfficeIncMember	whf:EmpireOfficeIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	12.00%	11.13%	12.00%	11.13%	11.13%
Investment, Acquisition Date	Aug. 17, 2021	Aug. 17, 2021
Investment Maturity Date	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024
Investment Owned, Balance, Principal Amount	$ 4,640	$ 4,803
Investment Owned, at Cost	4,608	4,746
Investment Owned, at Fair Value	$ 4,640	$ 4,754
Investment, Identifier [Axis]: Empire Office, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:EmpireOfficeIncMember	whf:EmpireOfficeIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]	Office Services And Supplies [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	12.00%	11.13%	12.00%	11.13%	11.13%
Investment, Acquisition Date	Apr. 12, 2019	Apr. 12, 2019
Investment Maturity Date	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024	Apr. 12, 2024
Investment Owned, Balance, Principal Amount	$ 11,342	$ 11,806
Investment Owned, at Cost	11,296	11,728
Investment Owned, at Fair Value	$ 11,342	$ 11,687
Investment, Identifier [Axis]: FGI Acquisition Corp. (d/b/a Flexitallic Group SAS) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:FgiAcquisitionCorpMember	whf:FgiAcquisitionCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	7.00%	6.50%	7.00%	7.00%
Investment Interest Rate	11.89%	11.73%	11.89%	11.73%	11.73%
Investment, Acquisition Date	Oct. 28, 2019	Oct. 28, 2019
Investment Maturity Date	Oct. 29, 2026	Oct. 29, 2026	Oct. 29, 2026	Oct. 29, 2026	Oct. 29, 2026
Investment Owned, Balance, Principal Amount	$ 16,277	$ 16,350
Investment Owned, at Cost	15,795	15,794
Investment Owned, at Fair Value	$ 16,106	$ 15,859
Investment, Interest Rate, Paid in Kind		0.50%		0.50%	0.50%
Investment, Interest Rate, Paid in Cash		11.23%		11.23%	11.23%
Investment, Identifier [Axis]: Foodservices Brand Group, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:FoodservicesBrandGroupLlcMember	whf:FoodservicesBrandGroupLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Distributors [Member]	Distributors [Member]	Distributors [Member]	Distributors [Member]	Distributors [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	8.00%	8.00%	8.00%	8.00%
Investment Interest Rate	13.29%	12.80%	13.29%	12.80%	12.80%
Investment, Acquisition Date	Nov. 22, 2022	Nov. 22, 2022
Investment Maturity Date	Dec. 09, 2025	Dec. 09, 2025	Dec. 09, 2025	Dec. 09, 2025	Dec. 09, 2025
Investment Owned, Balance, Principal Amount	$ 357	$ 357
Investment Owned, at Cost	357	357
Investment Owned, at Fair Value	$ 305	$ 330
Investment, Identifier [Axis]: Foodservices Brand Group, LLC Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:FoodservicesBrandGroupLlcMember	whf:FoodservicesBrandGroupLlcMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Distributors [Member]	Distributors [Member]	Distributors [Member]	Distributors [Member]	Distributors [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.70%	10.92%	11.70%	10.92%	10.92%
Investment, Acquisition Date	Nov. 22, 2022	Nov. 22, 2022
Investment Maturity Date	Jan. 08, 2026	Jan. 08, 2026	Jan. 08, 2026	Jan. 08, 2026	Jan. 08, 2026
Investment Owned, Balance, Principal Amount	$ 5,171	$ 5,171
Investment Owned, at Cost	5,119	5,108
Investment Owned, at Fair Value	$ 1,429	$ 3,841
Investment, Identifier [Axis]: Future Payment Technologies, LP First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:FuturePaymentTechnologiesLPMember	whf:FuturePaymentTechnologiesLPMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services	Data Processing & Outsourced Services	Data Processing & Outsourced Services	Data Processing & Outsourced Services	Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.25%	8.25%	8.25%	8.25%	8.25%
Investment Interest Rate	13.51%	12.37%	13.51%	12.37%	12.37%
Investment, Acquisition Date	Dec. 23, 2016	Dec. 23, 2016
Investment Maturity Date	Dec. 05, 2025	Jun. 07, 2024	Dec. 05, 2025	Jun. 07, 2024	Jun. 07, 2024
Investment Owned, Balance, Principal Amount	$ 22,288	$ 22,911
Investment Owned, at Cost	22,179	22,776
Investment Owned, at Fair Value	$ 22,129	$ 22,817
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GeoLogicSystemsLtdMember	whf:GeoLogicSystemsLtdMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services		Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	7.25%	1.00%	7.25%	7.25%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.88%	11.38%	11.88%	11.38%	11.38%
Investment, Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Investment Maturity Date	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024
Investment Owned, at Fair Value	$ (2)	$ (9)
Fair Value As A Percentage of Member's Equity	(0.01%)	(0.03%)
Investment, Identifier [Axis]: Geo Logic Systems Ltd First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GeoLogicSystemsLtdMember	whf:GeoLogicSystemsLtdMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Data Processing & Outsourced Services		Data Processing & Outsourced Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	whf:CanadianDollarOfferedRateMember	Base Rate [Member]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	5.50%	1.00%	5.50%	5.50%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.88%	11.38%	11.88%	11.38%	11.38%
Investment, Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Investment Maturity Date	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024	Dec. 19, 2024
Investment Owned, Balance, Principal Amount	$ 19,688	$ 20,088
Investment Owned, at Cost	15,145	15,413
Investment Owned, at Fair Value	$ 14,719	$ 14,545
Fair Value As A Percentage of Member's Equity	46.21%	48.10%
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GulfWindsInternationalAcquisitionLlcMember	whf:GulfWindsInternationalAcquisitionLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.19%	11.43%	12.19%	11.43%	11.43%
Investment, Acquisition Date	Dec. 16, 2022	Dec. 16, 2022
Investment Maturity Date	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028
Investment Owned, at Fair Value	$ 5
Investment, Identifier [Axis]: Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:GulfWindsInternationalAcquisitionLlcMember	whf:GulfWindsInternationalAcquisitionLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.19%	11.43%	12.19%	11.43%	11.43%
Investment, Acquisition Date	Dec. 16, 2022	Dec. 16, 2022
Investment Maturity Date	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028	Dec. 18, 2028
Investment Owned, Balance, Principal Amount	$ 4,829	$ 4,853
Investment Owned, at Cost	4,697	4,708
Investment Owned, at Fair Value	$ 4,731	$ 4,708
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:HCSalonHoldingsIncMember	whf:HCSalonHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	12.00%	11.23%	12.00%	11.23%	11.23%
Investment, Acquisition Date	Sep. 30, 2021	Sep. 30, 2021
Investment Maturity Date	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026
Investment Owned, at Fair Value	$ 9	$ 10
Investment, Identifier [Axis]: HC Salon Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:HCSalonHoldingsIncMember	whf:HCSalonHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	12.00%	11.23%	12.00%	11.23%	11.23%
Investment, Acquisition Date	Sep. 30, 2021	Sep. 30, 2021
Investment Maturity Date	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026	Sep. 30, 2026
Investment Owned, Balance, Principal Amount	$ 11,463	$ 11,521
Investment Owned, at Cost	11,313	11,348
Investment Owned, at Fair Value	$ 11,463	$ 11,521
Investment, Identifier [Axis]: HRG Management, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:HRGManagementLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Real Estate Operating Companies		Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.25%		6.25%	6.25%
Investment Interest Rate		10.48%		10.48%	10.48%
Investment, Acquisition Date		Dec. 23, 2022
Investment Maturity Date		Oct. 19, 2026		Oct. 19, 2026	Oct. 19, 2026
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00% Base Rate Plus, 6.12%, Rate 10.90%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.10%	6.25%	6.10%	6.10%
Investment Interest Rate	11.50%	10.92%	11.50%	10.92%	10.92%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026
Investment Owned, Balance, Principal Amount	$ 2,410	$ 1,768
Investment Owned, at Cost	2,376	1,741
Investment Owned, at Fair Value	$ 2,346	$ 1,720
Fair Value As A Percentage of Member's Equity	7.37%	5.69%
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.13%	10.48%	11.13%	10.48%	10.48%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026
Investment Owned, Balance, Principal Amount	$ 217
Investment Owned, at Cost	214
Investment Owned, at Fair Value	$ 205	$ (11)
Fair Value As A Percentage of Member's Equity	0.64%	(0.04%)
Investment, Identifier [Axis]: HRG Management, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.48%, Due 10/19/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	HRG Management, LLC HomeRiver Group, LLC [Member]	HRG Management, LLC HomeRiver Group, LLC [Member]
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies		Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.18%	10.48%	11.18%	10.48%	10.48%
Investment, Acquisition Date	Dec. 28, 2021	Dec. 28, 2021
Investment Maturity Date	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026	Oct. 19, 2026
Investment Owned, Balance, Principal Amount	$ 9,604	$ 9,653
Investment Owned, at Cost	9,477	9,505
Investment Owned, at Fair Value	$ 9,399	$ 9,412
Fair Value As A Percentage of Member's Equity	29.51%	31.13%
Investment, Identifier [Axis]: Hollander Intermediate LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:HollanderIntermediateLlcMember	whf:HollanderIntermediateLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	2.00%	2.00%	2.00%	2.00%	2.00%
Investment, Basis Spread, Variable Rate	8.75%	8.75%	8.75%	8.75%	8.75%
Investment Interest Rate	13.97%	13.19%	13.97%	13.19%	13.19%
Investment, Acquisition Date	Sep. 19, 2022	Sep. 19, 2022
Investment Maturity Date	Sep. 21, 2026	Sep. 21, 2026	Sep. 21, 2026	Sep. 21, 2026	Sep. 21, 2026
Investment Owned, Balance, Principal Amount	$ 4,800	$ 4,861
Investment Owned, at Cost	4,766	4,821
Investment Owned, at Fair Value	$ 4,301	$ 4,609
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:HonorsHoldingsLLCMember	whf:HonorsHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.91%	7.00%	6.91%	7.00%	7.00%
Investment Interest Rate	12.32%	11.62%	12.32%	11.62%	11.62%
Investment, Acquisition Date	Sep. 06, 2019	Sep. 06, 2019
Investment Maturity Date	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024
Investment Owned, Balance, Principal Amount	$ 4,649	$ 4,649
Investment Owned, at Cost	4,625	4,621
Investment Owned, at Fair Value	$ 4,573	$ 4,557
Investment, Identifier [Axis]: Honors Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:HonorsHoldingsLLCMember	whf:HonorsHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.85%	7.12%	8.85%	7.12%	7.12%
Investment Interest Rate	14.24%	11.73%	14.24%	11.73%	11.73%
Investment, Acquisition Date	Sep. 06, 2019	Sep. 06, 2019
Investment Maturity Date	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024	Sep. 06, 2024
Investment Owned, Balance, Principal Amount	$ 9,440	$ 9,440
Investment Owned, at Cost	9,359	9,344
Investment Owned, at Fair Value	$ 9,286	$ 9,254
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	5.75%	5.75%	5.75%	5.75%	5.75%
Investment Interest Rate	11.14%	10.43%	11.14%	10.43%	10.43%
Investment, Acquisition Date	Mar. 11, 2022	Mar. 11, 2022
Investment Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026
Investment Owned, Balance, Principal Amount	$ 3,070	$ 2,756
Investment Owned, at Cost	3,027	2,713
Investment Owned, at Fair Value	$ 2,993	$ 2,699
Fair Value As A Percentage of Member's Equity	9.40%	8.93%
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.00%	1.00%	6.00%	6.00%
Investment, Basis Spread, Variable Rate	5.75%	5.75%	5.75%	5.75%	5.75%
Investment Interest Rate	11.14%	10.43%	11.14%	10.43%	10.43%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026
Investment Owned, at Fair Value	$ (7)	$ (3)
Fair Value As A Percentage of Member's Equity	(0.02%)
Investment, Identifier [Axis]: I&I Sales Group, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IAndISalesGroupLLCMember	whf:IAndISalesGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	5.75%	5.75%	5.75%	5.75%	5.75%
Investment Interest Rate	11.14%	10.48%	11.14%	10.48%	10.48%
Investment, Acquisition Date	Feb. 18, 2022	Feb. 18, 2022
Investment Maturity Date	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026	Dec. 15, 2026
Investment Owned, Balance, Principal Amount	$ 9,146	$ 9,193
Investment Owned, at Cost	9,020	9,047
Investment Owned, at Fair Value	$ 8,918	$ 9,007
Fair Value As A Percentage of Member's Equity	28.00%	29.79%
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ITSBuyerIncMember	whf:ITSBuyerIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.00%	10.73%	11.00%	10.73%	10.73%
Investment, Acquisition Date	Feb. 17, 2022	Feb. 17, 2022
Investment Maturity Date	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026
Investment Owned, at Fair Value	$ 2	$ 3
Fair Value As A Percentage of Member's Equity	0.01%	0.01%
Investment, Identifier [Axis]: ITS Buyer Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ITSBuyerIncMember	whf:ITSBuyerIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.50%	1.00%	6.50%	6.50%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.00%	10.73%	11.00%	10.73%	10.73%
Investment, Acquisition Date	Feb. 17, 2022	Feb. 17, 2022
Investment Maturity Date	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026	Jun. 15, 2026
Investment Owned, Balance, Principal Amount	$ 3,559	$ 3,577
Investment Owned, at Cost	3,513	3,523
Investment Owned, at Fair Value	$ 3,522	$ 3,542
Fair Value As A Percentage of Member's Equity	11.06%	11.71%
Investment, Identifier [Axis]: ImageOne Industries, LLC Common A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ImageOneIndustriesLLCMember	whf:ImageOneIndustriesLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonAUnitsMember	us-gaap:CommonClassAMember	whf:CommonAUnitsMember	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services
Investment, Acquisition Date	Sep. 20, 2019	Sep. 20, 2019
Investment Owned, Balance, Principal Amount	$ 232	$ 229
Investment Owned, at Cost	6	4
Investment Owned, at Fair Value	$ 21	$ 92
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:IndustrialSpecialtyServicesUSALLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Environmental & Facilities Services		Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Base Rate [Member]		Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		5.90%		5.90%	5.90%
Investment Interest Rate		11.41%		11.41%	11.41%
Investment, Acquisition Date		Dec. 31, 2021
Investment Maturity Date		Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount		$ 674
Investment Owned, at Cost		663
Investment Owned, at Fair Value		$ 649
Investment, Identifier [Axis]: Industrial Specialty Services USA LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:IndustrialSpecialtyServicesUSALLCMember	whf:IndustrialSpecialtyServicesUSALLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.75%	6.25%	6.75%	6.25%	6.25%
Investment Interest Rate	12.14%	10.98%	12.14%	10.98%	10.98%
Investment, Acquisition Date	Dec. 31, 2021	Dec. 31, 2021
Investment Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount	$ 11,827	$ 11,887
Investment Owned, at Cost	11,661	11,697
Investment Owned, at Fair Value	$ 11,408	$ 11,559
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:InspiredBeautyBrandsIncMember	whf:InspiredBeautyBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products	Personal Products	Personal Products	Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.21%	10.78%	12.21%	10.78%	10.78%
Investment, Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Investment Maturity Date	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025
Investment Owned, Balance, Principal Amount	$ 88	$ 265
Investment Owned, at Cost	88	262
Investment Owned, at Fair Value	$ 88	$ 252
Investment, Identifier [Axis]: Inspired Beauty Brands, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:InspiredBeautyBrandsIncMember	whf:InspiredBeautyBrandsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products	Personal Products	Personal Products	Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.32%	11.65%	12.32%	11.65%	11.65%
Investment, Acquisition Date	Dec. 30, 2020	Dec. 30, 2020
Investment Maturity Date	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025	Dec. 30, 2025
Investment Owned, Balance, Principal Amount	$ 11,205	$ 11,519
Investment Owned, at Cost	11,093	11,381
Investment Owned, at Fair Value	$ 11,094	$ 11,159
Investment, Identifier [Axis]: JVMC Holdings Corp First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JVMCHoldingsCorpMember	whf:JVMCHoldingsCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage	Investment Banking & Brokerage	Investment Banking & Brokerage	Investment Banking & Brokerage	Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.71%	10.88%	11.71%	10.88%	10.88%
Investment, Acquisition Date	Feb. 28, 2019	Feb. 28, 2019
Investment Maturity Date	Feb. 28, 2024	Feb. 28, 2024	Feb. 28, 2024	Feb. 28, 2024	Feb. 28, 2024
Investment Owned, Balance, Principal Amount	$ 9,325	$ 11,860
Investment Owned, at Cost	9,312	11,833
Investment Owned, at Fair Value	$ 9,325	$ 11,860
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JZCapitalPartnersLtdMember	whf:JZCapitalPartnersLtdMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.22%	11.33%	12.22%	11.33%	11.33%
Investment, Acquisition Date	Jan. 26, 2022	Jan. 26, 2022
Investment Maturity Date	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027
Investment Owned, at Fair Value	$ 24	$ 9
Investment, Identifier [Axis]: JZ Capital Partners Ltd First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JZCapitalPartnersLtdMember	whf:JZCapitalPartnersLtdMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]	Asset Management And Custody Banks [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.22%	11.33%	12.22%	11.33%	11.33%
Investment, Acquisition Date	Jan. 26, 2022	Jan. 26, 2022
Investment Maturity Date	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027	Jan. 26, 2027
Investment Owned, Balance, Principal Amount	$ 10,286	$ 10,286
Investment Owned, at Cost	10,139	10,118
Investment Owned, at Fair Value	$ 10,181	$ 10,135
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Delayed Draw Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.75%	1.00%	6.75%	6.75%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.48%	11.14%	11.48%	11.14%	11.14%
Investment, Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Investment Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026
Investment Owned, Balance, Principal Amount	$ 1,896	$ 1,909
Investment Owned, at Cost	1,872	1,882
Investment Owned, at Fair Value	$ 1,854	$ 1,868
Fair Value As A Percentage of Member's Equity	5.82%	6.18%
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Revolving Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.75%	1.00%	6.75%	6.75%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.30%	10.54%	11.30%	10.54%	10.54%
Investment, Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Investment Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026
Investment Owned, Balance, Principal Amount	$ 179	$ 298
Investment Owned, at Cost	177	294
Investment Owned, at Fair Value	$ 168	$ 287
Fair Value As A Percentage of Member's Equity	0.53%	0.95%
Investment, Identifier [Axis]: Juniper Landscaping Holdings LLC First Lien Secured Term Loan Due 12/29/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:JuniperLandscapingHoldingsLLCMember	whf:JuniperLandscapingHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.50%	11.15%	11.50%	11.15%	11.15%
Investment, Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Investment Maturity Date	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026	Dec. 29, 2026
Investment Owned, Balance, Principal Amount	$ 11,249	$ 11,306
Investment Owned, at Cost	11,111	11,147
Investment Owned, at Fair Value	$ 11,024	$ 11,079
Fair Value As A Percentage of Member's Equity	34.62%	36.64%
Investment, Identifier [Axis]: Keras Holdings, LLC Shares
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:KerasHoldingsLLCMember	whf:KerasHoldingsLLCMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services	IT Consulting And Other Services
Investment, Acquisition Date	Dec. 31, 2020	Dec. 31, 2020
Investment Owned, Balance, Principal Amount	$ 496	$ 496
Investment Owned, at Cost	496	496
Investment Owned, at Fair Value	$ 425	$ 363
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Trading Companies & Distributors		Trading Companies & Distributors
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.25%		6.25%
Investment Interest Rate	11.42%		11.42%
Investment, Acquisition Date	Jun. 22, 2021
Investment Maturity Date	Feb. 24, 2026		Feb. 24, 2026
Investment Owned, at Fair Value	$ 1
Investment, Identifier [Axis]: LINC Systems, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 7.25%, Due 2/24/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Trading Companies & Distributors		Trading Companies & Distributors
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.25%		6.25%
Investment Interest Rate	11.42%		11.42%
Investment, Acquisition Date	Jun. 22, 2021
Investment Maturity Date	Feb. 24, 2026		Feb. 24, 2026
Investment Owned, Balance, Principal Amount	$ 9,929
Investment Owned, at Cost	9,813
Investment Owned, at Fair Value	$ 9,834
Fair Value As A Percentage of Member's Equity	30.88%
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.25%		6.25%	6.25%
Investment Interest Rate		10.42%		10.42%	10.42%
Investment, Acquisition Date		Jun. 22, 2021
Investment Maturity Date		Feb. 24, 2026		Feb. 24, 2026	Feb. 24, 2026
Investment Owned, at Fair Value		$ (1)
Fair Value As A Percentage of Member's Equity		0.00%
Investment, Identifier [Axis]: LINC Systems, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L Plus, 6.25%, Rate 10.52%, Due 2/24/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:LINCSystemsLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.25%		6.25%	6.25%
Investment Interest Rate		10.42%		10.42%	10.42%
Investment, Acquisition Date		Jun. 22, 2021
Investment Maturity Date		Feb. 24, 2026		Feb. 24, 2026	Feb. 24, 2026
Investment Owned, Balance, Principal Amount		$ 10,033
Investment Owned, at Cost		9,895
Investment Owned, at Fair Value		$ 9,882
Fair Value As A Percentage of Member's Equity		32.68%
Investment, Identifier [Axis]: LMG Holdings, Inc First Lien Secured Term Loan Due 4/30/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LMGHoldingsIncMember	whf:LMGHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electronic Equipment & Instruments		Electronic Equipment & Instruments
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	6.50%	7.00%	6.50%	6.50%
Investment Interest Rate	11.89%	11.23%	11.89%	11.23%	11.23%
Investment, Acquisition Date	Jun. 28, 2021	Jun. 28, 2021
Investment Maturity Date	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026
Investment Owned, Balance, Principal Amount	$ 13,398	$ 13,466
Investment Owned, at Cost	13,243	13,284
Investment Owned, at Fair Value	$ 13,184	$ 13,193
Fair Value As A Percentage of Member's Equity	41.39%	43.63%
Investment, Identifier [Axis]: LMG Holdings, Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LMGHoldingsIncMember	whf:LMGHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Electronic Equipment & Instruments		Electronic Equipment & Instruments
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	6.50%	7.00%	6.50%	6.50%
Investment Interest Rate	11.89%	11.23%	11.89%	11.23%	11.23%
Investment, Acquisition Date	Jun. 28, 2021	Jun. 28, 2021
Investment Maturity Date	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026	Apr. 30, 2026
Investment Owned, at Fair Value	$ (4)	$ (6)
Fair Value As A Percentage of Member's Equity	(0.01%)	(0.02%)
Investment, Identifier [Axis]: LSCS Holdings, Inc Second Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LSCSHoldingsIncMember	whf:LSCSHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember	whf:SecondLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Life Sciences Tools And Services [Member]	Life Sciences Tools And Services [Member]	Life Sciences Tools And Services [Member]	Life Sciences Tools And Services [Member]	Life Sciences Tools And Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	8.00%	8.00%	8.00%	8.00%	8.00%
Investment Interest Rate	13.19%	12.38%	13.19%	12.38%	12.38%
Investment, Acquisition Date	Nov. 23, 2021	Nov. 23, 2021
Investment Maturity Date	Dec. 16, 2029	Dec. 16, 2029	Dec. 16, 2029	Dec. 16, 2029	Dec. 16, 2029
Investment Owned, Balance, Principal Amount	$ 5,000	$ 5,000
Investment Owned, at Cost	4,939	4,935
Investment Owned, at Fair Value	$ 4,827	$ 4,824
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LabLogisticsLLCMember	whf:LabLogisticsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.25%	7.25%	9.25%	7.25%	7.25%
Investment Interest Rate	14.43%	11.67%	14.43%	11.67%	11.67%
Investment, Acquisition Date	Oct. 16, 2019	Oct. 16, 2019
Investment Maturity Date	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023
Investment Owned, Balance, Principal Amount	$ 5,104	$ 5,131
Investment Owned, at Cost	5,102	5,124
Investment Owned, at Fair Value	$ 5,104	$ 5,131
Investment, Identifier [Axis]: Lab Logistics, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LabLogisticsLLCMember	whf:LabLogisticsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.25%	7.25%	9.25%	7.25%	7.25%
Investment Interest Rate	14.44%	11.67%	14.44%	11.67%	11.67%
Investment, Acquisition Date	Oct. 16, 2019	Oct. 16, 2019
Investment Maturity Date	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023	Sep. 25, 2023
Investment Owned, Balance, Principal Amount	$ 5,462	$ 5,487
Investment Owned, at Cost	5,449	5,446
Investment Owned, at Fair Value	$ 5,462	$ 5,487
Investment, Identifier [Axis]: Lenny & Larry's, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:LennyLarrysLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Packaged Foods & Meats		Packaged Foods & Meats	Packaged Foods & Meats
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		8.33%		8.33%	8.33%
Investment Interest Rate		12.65%		12.65%	12.65%
Investment, Acquisition Date		May 15, 2018
Investment Maturity Date		May 15, 2023		May 15, 2023	May 15, 2023
Investment Owned, Balance, Principal Amount		$ 11,214
Investment Owned, at Cost		11,198
Investment Owned, at Fair Value		$ 10,941
Investment, Interest Rate, Paid in Kind		1.71%		1.71%	1.71%
Investment, Interest Rate, Paid in Cash		10.94%		10.94%	10.94%
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LeviathanIntermediateHoldcoLlcMember	whf:LeviathanIntermediateHoldcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.50%	1.00%	1.50%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.89%	12.54%	12.89%	12.54%	12.54%
Investment, Acquisition Date	Dec. 27, 2022	Dec. 27, 2022
Investment Maturity Date	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027
Investment Owned, Balance, Principal Amount	$ 76	$ 78
Investment Owned, at Cost	74	76
Investment Owned, at Fair Value	$ 81	$ 75
Investment, Identifier [Axis]: Leviathan Intermediate Holdco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LeviathanIntermediateHoldcoLlcMember	whf:LeviathanIntermediateHoldcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.50%	1.00%	1.50%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.89%	12.54%	12.89%	12.54%	12.54%
Investment, Acquisition Date	Dec. 27, 2022	Dec. 27, 2022
Investment Maturity Date	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027	Dec. 27, 2027
Investment Owned, Balance, Principal Amount	$ 10,398	$ 10,454
Investment Owned, at Cost	10,118	10,141
Investment Owned, at Fair Value	$ 10,242	$ 10,138
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan A
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LiftBrandsIncMember	whf:LiftBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember	whf:FirstLienSecuredTermLoanAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.70%	11.88%	12.70%	11.88%	11.88%
Investment, Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Investment Maturity Date	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025
Investment Owned, Balance, Principal Amount	$ 5,546	$ 5,574
Investment Owned, at Cost	5,512	5,531
Investment Owned, at Fair Value	$ 5,517	$ 5,520
Investment, Identifier [Axis]: Lift Brands, Inc First Lien Secured Term Loan B
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LiftBrandsIncMember	whf:LiftBrandsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember	whf:FirstLienSecuredTermLoanBMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Basis Spread, Variable Rate	9.50%	9.50%	9.50%	9.50%	9.50%
Investment Interest Rate		9.50%		9.50%	9.50%
Investment, Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Investment Maturity Date	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025	Jun. 29, 2025
Investment Owned, Balance, Principal Amount	$ 1,383	$ 1,330
Investment Owned, at Cost	1,371	1,316
Investment Owned, at Fair Value	$ 1,314	$ 1,266
Investment, Interest Rate, Paid in Kind	9.50%	9.50%	9.50%	9.50%	9.50%
Investment, Interest Rate, Paid in Cash		0.00%		0.00%	0.00%
Investment, Identifier [Axis]: Luxury Brand Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:LuxuryBrandHoldingsIncMember	whf:LuxuryBrandHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.65%	10.91%	11.65%	10.91%	10.91%
Investment, Acquisition Date	Dec. 04, 2020	Dec. 04, 2020
Investment Maturity Date	Jun. 04, 2026	Jun. 04, 2026	Jun. 04, 2026	Jun. 04, 2026	Jun. 04, 2026
Investment Owned, Balance, Principal Amount	$ 5,280	$ 5,880
Investment Owned, at Cost	5,224	5,807
Investment Owned, at Fair Value	$ 5,266	$ 5,880
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	8.00%		8.00%
Investment Interest Rate	13.34%		13.34%
Investment, Acquisition Date	Apr. 07, 2023
Investment Maturity Date	Apr. 09, 2029		Apr. 09, 2029
Investment, Identifier [Axis]: M&M OpCo. LLC (d/b/a Escalent, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	M&M OpCo. LLC (d/b/a Escalent, Inc.)
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	8.00%		8.00%
Investment Interest Rate	13.34%		13.34%
Investment, Acquisition Date	Apr. 07, 2023
Investment Maturity Date	Apr. 09, 2029		Apr. 09, 2029
Investment Owned, Balance, Principal Amount	$ 4,750
Investment Owned, at Cost	4,613
Investment Owned, at Fair Value	$ 4,613
Investment, Identifier [Axis]: MBS Highway, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MbsHighwayLlcMember	whf:MbsHighwayLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software	Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.63%	11.92%	12.63%	11.92%	11.92%
Investment, Acquisition Date	Oct. 13, 2022	Oct. 13, 2022
Investment Maturity Date	Oct. 13, 2027	Oct. 13, 2027	Oct. 13, 2027	Oct. 13, 2027	Oct. 13, 2027
Investment Owned, Balance, Principal Amount	$ 9,429	$ 9,476
Investment Owned, at Cost	9,227	9,250
Investment Owned, at Fair Value	$ 9,217	$ 9,250
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.00%		6.00%	6.00%
Investment Interest Rate		10.38%		10.38%	10.38%
Investment, Acquisition Date		Jan. 21, 2021
Investment Maturity Date		Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Investment Owned, at Fair Value		$ 22
Fair Value As A Percentage of Member's Equity		0.07%
Investment, Identifier [Axis]: MEP-TS Midco, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.00%		6.00%	6.00%
Investment Interest Rate		10.38%		10.38%	10.38%
Investment, Acquisition Date		Jan. 21, 2021
Investment Maturity Date		Dec. 31, 2026		Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount		$ 13,353
Investment Owned, at Cost		13,162
Investment Owned, at Fair Value		$ 13,353
Fair Value As A Percentage of Member's Equity		44.16%
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.00%		6.00%
Investment Interest Rate	11.20%		11.20%
Investment, Acquisition Date	Jan. 21, 2021
Investment Maturity Date	Dec. 31, 2026		Dec. 31, 2026
Investment Owned, at Fair Value	$ 19
Fair Value As A Percentage of Member's Equity	0.06%
Investment, Identifier [Axis]: MEP-TS Midco, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.00%, Rate 7.00%, Due 12/31/2026
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MEP-TSMidcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.00%		6.00%
Investment Interest Rate	11.20%		11.20%
Investment, Acquisition Date	Jan. 21, 2021
Investment Maturity Date	Dec. 31, 2026		Dec. 31, 2026
Investment Owned, Balance, Principal Amount	$ 13,285
Investment Owned, at Cost	13,118
Investment Owned, at Fair Value	$ 13,285
Fair Value As A Percentage of Member's Equity	41.71%
Investment, Identifier [Axis]: MGT Merger Target, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.94%		11.94%
Investment, Acquisition Date	May 10, 2023
Investment Maturity Date	Apr. 10, 2029		Apr. 10, 2029
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.94%		11.94%
Investment, Acquisition Date	May 10, 2023
Investment Maturity Date	Apr. 10, 2028		Apr. 10, 2028
Investment, Identifier [Axis]: MGT Merger Target, LLC First lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MgtMergerTargetLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.94%		11.94%
Investment, Acquisition Date	May 10, 2023
Investment Maturity Date	Apr. 10, 2029		Apr. 10, 2029
Investment Owned, Balance, Principal Amount	$ 6,263
Investment Owned, at Cost	6,084
Investment Owned, at Fair Value	$ 6,085
Fair Value As A Percentage of Member's Equity	19.11%
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MSIInformationServicesIncMember	whf:MSIInformationServicesIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.95%	7.75%	6.95%	7.75%	7.75%
Investment Interest Rate	14.60%	12.17%	14.60%	12.17%	12.17%
Investment, Acquisition Date	Apr. 25, 2022	Apr. 25, 2022
Investment Maturity Date	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026
Investment Owned, Balance, Principal Amount	$ 375
Investment Owned, at Cost	370
Investment Owned, at Fair Value	$ 332	$ (9)
Investment, Identifier [Axis]: MSI Information Services, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MSIInformationServicesIncMember	whf:MSIInformationServicesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment Interest Rate	12.95%	12.17%	12.95%	12.17%	12.17%
Investment, Acquisition Date	Apr. 25, 2022	Apr. 25, 2022
Investment Maturity Date	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026	Apr. 24, 2026
Investment Owned, Balance, Principal Amount	$ 7,531	$ 7,751
Investment Owned, at Cost	7,425	7,623
Investment Owned, at Fair Value	$ 7,157	$ 7,554
Investment, Identifier [Axis]: Manchester Acquisition Sub LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ManchesterAcquisitionSubLLCMember	whf:ManchesterAcquisitionSubLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals [Member]	Diversified Chemicals [Member]	Diversified Chemicals [Member]	Diversified Chemicals [Member]	Diversified Chemicals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.75%	0.75%	0.75%	0.75%	0.75%
Investment, Basis Spread, Variable Rate	5.75%	5.75%	5.75%	5.75%	5.75%
Investment Interest Rate	11.18%	10.30%	11.18%	10.30%	10.30%
Investment, Acquisition Date	Nov. 16, 2021	Nov. 16, 2021
Investment Maturity Date	Dec. 01, 2026	Nov. 16, 2026	Dec. 01, 2026	Nov. 16, 2026	Nov. 16, 2026
Investment Owned, Balance, Principal Amount	$ 7,880	$ 7,920
Investment Owned, at Cost	7,582	7,578
Investment Owned, at Fair Value	$ 7,102	$ 6,731
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Internet & Direct Marketing Retail		Internet & Direct Marketing Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.98%		11.98%
Investment, Acquisition Date	Jul. 19, 2019
Investment Maturity Date	Jul. 01, 2025		Jul. 01, 2025
Investment Owned, at Fair Value	$ 2
Fair Value As A Percentage of Member's Equity	0.01%
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2, LLC, First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 7.50%, Due 7/1/2025
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Internet & Direct Marketing Retail		Internet & Direct Marketing Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.98%		11.98%
Investment, Acquisition Date	Jul. 19, 2019
Investment Maturity Date	Jul. 01, 2025		Jul. 01, 2025
Investment Owned, Balance, Principal Amount	$ 18,981
Investment Owned, at Cost	18,833
Investment Owned, at Fair Value	$ 18,898
Fair Value As A Percentage of Member's Equity	59.33%
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		6.50%		6.50%	6.50%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		11.23%		11.23%	11.23%
Investment, Acquisition Date		Jul. 19, 2019
Investment Maturity Date		Jul. 01, 2025		Jul. 01, 2025	Jul. 01, 2025
Investment Owned, at Fair Value		$ 8
Fair Value As A Percentage of Member's Equity		0.03%
Investment, Identifier [Axis]: Marlin DTC-LS Midco 2., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 7/1/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MarlinDTC-LSMidco2LLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		6.50%		6.50%	6.50%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		11.23%		11.23%	11.23%
Investment, Acquisition Date		Jul. 19, 2019
Investment Maturity Date		Jul. 01, 2025		Jul. 01, 2025	Jul. 01, 2025
Investment Owned, Balance, Principal Amount		$ 19,105
Investment Owned, at Cost		18,920
Investment Owned, at Fair Value		$ 19,105
Fair Value As A Percentage of Member's Equity		63.18%
Investment, Identifier [Axis]: Max Solutions Inc. Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging	Paper Packaging	Paper Packaging	Paper Packaging	Paper Packaging
Investment, Acquisition Date	Sep. 29, 2022	Sep. 29, 2022
Investment Owned, Balance, Principal Amount	$ 4	$ 4
Investment Owned, at Cost	400	400
Investment Owned, at Fair Value	$ 123	$ 283
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.66%	6.50%	7.66%	6.50%	6.50%
Investment Interest Rate	13.05%	11.23%	13.05%	11.23%	11.23%
Investment, Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Investment Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028
Investment Owned, at Fair Value	$ (21)	$ (26)
Fair Value As A Percentage of Member's Equity	(0.07%)	(0.09%)
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread CDOR plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:CanadianDollarOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.66%	6.50%	7.66%	6.50%	6.50%
Investment Interest Rate	13.05%	11.23%	13.05%	11.23%	11.23%
Investment, Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Investment Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		11.23%		11.23%	11.23%
Investment, Acquisition Date		Oct. 07, 2022
Investment Maturity Date		Sep. 29, 2028		Sep. 29, 2028	Sep. 29, 2028
Investment, Identifier [Axis]: Max Solutions, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 11.23%, Due 9/29/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxSolutionsIncMember	whf:MaxSolutionsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Paper Packaging		Paper Packaging
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.66%	6.50%	7.66%	6.50%	6.50%
Investment Interest Rate	13.05%	11.23%	13.05%	11.23%	11.23%
Investment, Acquisition Date	Oct. 07, 2022	Oct. 07, 2022
Investment Maturity Date	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028	Sep. 29, 2028
Investment Owned, Balance, Principal Amount	$ 6,622	$ 8,244
Investment Owned, at Cost	6,506	8,085
Investment Owned, at Fair Value	$ 6,502	$ 8,085
Fair Value As A Percentage of Member's Equity	20.41%	26.74%
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxorAcquisitionInc.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Drug Retail		Drug Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.93%		11.93%
Investment, Acquisition Date	Apr. 11, 2023
Investment Maturity Date	Mar. 01, 2029		Mar. 01, 2029
Investment Owned, Balance, Principal Amount	$ 194
Investment Owned, at Cost	188
Investment Owned, at Fair Value	$ 189
Fair Value As A Percentage of Member's Equity	0.59%
Investment, Identifier [Axis]: Maxor Acquisition, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MaxorAcquisitionInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Drug Retail		Drug Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	12.16%		12.16%
Investment, Acquisition Date	Apr. 11, 2023
Investment Maturity Date	Mar. 01, 2029		Mar. 01, 2029
Investment Owned, Balance, Principal Amount	$ 5,078
Investment Owned, at Cost	4,934
Investment Owned, at Fair Value	$ 4,935
Fair Value As A Percentage of Member's Equity	15.49%
Investment, Identifier [Axis]: Merriman Holdings LP (d/b/a Escalent, Inc.) Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MerrimanHoldingsLPMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Advertising		Advertising
Investment, Acquisition Date	Apr. 07, 2023
Investment Owned, Balance, Principal Amount	$ 277
Investment Owned, at Cost	333
Investment Owned, at Fair Value	$ 333
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 10.81%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals		Pharmaceuticals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.34%	10.81%	11.34%	10.81%	10.81%
Investment, Acquisition Date	Oct. 01, 2022	Oct. 01, 2022
Investment Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027
Investment Owned, Balance, Principal Amount	$ 887	$ 892
Investment Owned, at Cost	873	878
Investment Owned, at Fair Value	$ 871	$ 876
Fair Value As A Percentage of Member's Equity	2.73%	2.90%
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.81%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals		Pharmaceuticals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.03%	10.81%	11.03%	10.81%	10.81%
Investment, Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Investment Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027
Investment Owned, Balance, Principal Amount	$ 754
Investment Owned, at Cost	742
Investment Owned, at Fair Value	$ 737	$ (3)
Fair Value As A Percentage of Member's Equity	2.31%	(0.01%)
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread E Plus 6.00%, Rate 8.17%, Due 11/20/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals		Pharmaceuticals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	9.21%	8.17%	9.21%	8.17%	8.17%
Investment, Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Investment Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027
Investment Owned, Balance, Principal Amount	$ 12,225	$ 12,287
Investment Owned, at Cost	13,597	13,643
Investment Owned, at Fair Value	$ 13,054	$ 12,876
Fair Value As A Percentage of Member's Equity	41.00%	42.57%
Investment, Identifier [Axis]: Meta Buyer LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 10.62%, Due 11/1/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MetaBuyerLLCMember	whf:MetaBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Pharmaceuticals		Pharmaceuticals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.27%	10.62%	11.27%	10.62%	10.62%
Investment, Acquisition Date	Dec. 16, 2021	Dec. 16, 2021
Investment Maturity Date	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027	Nov. 01, 2027
Investment Owned, Balance, Principal Amount	$ 976	$ 981
Investment Owned, at Cost	961	966
Investment Owned, at Fair Value	$ 959	$ 963
Fair Value As A Percentage of Member's Equity	3.01%	3.18%
Investment, Identifier [Axis]: Motivational CIV, LLC Class B Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalCIVLLCMember	whf:MotivationalCIVLLCMember
Investment, Type [Extensible Enumeration]	whf:ClassBUnitsMember	whf:ClassBUnitsMember	whf:ClassBUnitsMember	whf:ClassBUnitsMember	whf:ClassBUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics
Investment, Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Investment Owned, Balance, Principal Amount	$ 1,250	$ 1,250
Investment Owned, at Cost	1,250	1,250
Investment Owned, at Fair Value	$ 424	$ 517
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalMarketingLLCMember	whf:MotivationalMarketingLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	5.56%	6.25%	5.56%	5.56%
Investment Interest Rate	11.48%	11.21%	11.48%	11.21%	11.21%
Investment, Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Investment Maturity Date	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026
Investment Owned, Balance, Principal Amount	$ 1,182	$ 158
Investment Owned, at Cost	1,167	155
Investment Owned, at Fair Value	$ 1,123	$ 133
Investment, Identifier [Axis]: Motivational Marketing, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:MotivationalMarketingLLCMember	whf:MotivationalMarketingLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics	Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.43%	10.59%	11.43%	10.59%	10.59%
Investment, Acquisition Date	Jul. 12, 2021	Jul. 12, 2021
Investment Maturity Date	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026	Jul. 12, 2026
Investment Owned, Balance, Principal Amount	$ 11,091	$ 11,113
Investment Owned, at Cost	10,957	10,956
Investment Owned, at Fair Value	$ 10,542	$ 10,749
Investment, Identifier [Axis]: NNA Services, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NNAServicesLLCMember	whf:NNAServicesLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	12.14%	11.48%	12.14%	11.48%	11.48%
Investment, Acquisition Date	Aug. 27, 2021	Aug. 27, 2021
Investment Maturity Date	Aug. 27, 2026	Aug. 27, 2026	Aug. 27, 2026	Aug. 27, 2026	Aug. 27, 2026
Investment Owned, Balance, Principal Amount	$ 9,635	$ 11,302
Investment Owned, at Cost	9,559	11,199
Investment Owned, at Fair Value	$ 9,262	$ 10,833
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NPAVLessorCorp.Member	whf:NPAVLessorCorp.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	us-gaap:RealEstateSectorMember		us-gaap:RealEstateSectorMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.50%	6.00%	6.50%	6.50%
Investment Interest Rate	11.69%	10.92%	11.69%	10.92%	10.92%
Investment, Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Investment Maturity Date	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027
Investment Owned, Balance, Principal Amount	$ 508	$ 290
Investment Owned, at Cost	500	285
Investment Owned, at Fair Value	$ 438	$ 247
Fair Value As A Percentage of Member's Equity	1.38%	0.82%
Investment, Identifier [Axis]: NPAV Lessor Corp., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.50%, Rate 10.92%, Due 1/21/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NPAVLessorCorp.Member	whf:NPAVLessorCorp.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	us-gaap:RealEstateSectorMember		us-gaap:RealEstateSectorMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.50%	6.00%	6.50%	6.50%
Investment Interest Rate	11.70%	10.92%	11.70%	10.92%	10.92%
Investment, Acquisition Date	Mar. 01, 2022	Mar. 01, 2022
Investment Maturity Date	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027	Jan. 21, 2027
Investment Owned, Balance, Principal Amount	$ 7,946	$ 8,924
Investment Owned, at Cost	7,832	8,778
Investment Owned, at Fair Value	$ 7,146	$ 8,301
Fair Value As A Percentage of Member's Equity	22.44%	27.45%
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NavigaIncMember	whf:NavigaIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software	Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	6.63%	7.00%	6.63%	6.63%
Investment Interest Rate	12.34%	12.19%	12.34%	12.19%	12.19%
Investment, Acquisition Date	Jun. 14, 2019	Oct. 06, 2022
Investment Maturity Date	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023
Investment Owned, Balance, Principal Amount	$ 267	$ 267
Investment Owned, at Cost	267	267
Investment Owned, at Fair Value	$ 261	$ 258
Investment, Identifier [Axis]: Naviga Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NavigaIncMember	whf:NavigaIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software	Application Software	Application Software	Application Software	Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.00%	7.00%	7.00%	7.00%	7.00%
Investment Interest Rate	12.34%	11.68%	12.34%	11.68%	11.68%
Investment, Acquisition Date	Jun. 14, 2019	Oct. 06, 2022
Investment Maturity Date	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023	Dec. 29, 2023
Investment Owned, Balance, Principal Amount	$ 3,164	$ 3,180
Investment Owned, at Cost	3,163	3,177
Investment Owned, at Fair Value	$ 3,101	$ 3,084
Investment, Identifier [Axis]: New American Crafts Holdings, LLC Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:NewAmericanCraftsHoldingsLlcClassaUnitsMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Office Services And Supplies [Member]		Office Services And Supplies [Member]
Investment, Acquisition Date	Mar. 16, 2023
Investment Owned, Balance, Principal Amount	$ 1
Investment, Identifier [Axis]: PFB Holdco, Inc Class A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember	Preferred Units [Member]	whf:ClassAUnitsMember	Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products	Building Products	Building Products
Investment, Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Investment Owned, Balance, Principal Amount			$ 1	$ 1
Investment Owned, at Cost	$ 423	$ 423
Investment Owned, at Fair Value	$ 1,143	$ 786
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products	Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.13%	10.52%	11.13%	10.52%	10.52%
Investment, Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Investment Maturity Date	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026
Investment Owned, Balance, Principal Amount			$ 8,313	$ 8,935
Investment Owned, at Cost	$ 6,414	$ 6,879
Investment Owned, at Fair Value	$ 6,277	$ 6,504
Investment, Identifier [Axis]: PFB Holdco, Inc First Lien Secured Term Loan SOFR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.00%		6.00%
Investment Interest Rate	11.23%		11.23%
Investment, Acquisition Date	Dec. 17, 2021
Investment Maturity Date	Dec. 17, 2026		Dec. 17, 2026
Investment Owned, Balance, Principal Amount	$ 2,025
Investment Owned, at Cost	1,997
Investment Owned, at Fair Value	$ 2,013
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products	Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.13%	10.52%	11.13%	10.52%	10.52%
Investment, Acquisition Date	Dec. 17, 2021	Dec. 17, 2021
Investment Maturity Date	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026	Dec. 17, 2026
Investment Owned, at Fair Value	$ 13	$ 2
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan LIBOR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Building Products		Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.00%		6.00%	6.00%
Investment Interest Rate		10.17%		10.17%	10.17%
Investment, Acquisition Date		Dec. 17, 2021
Investment Maturity Date		Dec. 17, 2026		Dec. 17, 2026	Dec. 17, 2026
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Revolving Loan SOFR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products		Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.00%		6.00%
Investment Interest Rate	11.23%		11.23%
Investment, Acquisition Date	Dec. 17, 2021
Investment Maturity Date	Dec. 17, 2026		Dec. 17, 2026
Investment Owned, at Fair Value	$ 2
Investment, Identifier [Axis]: PFB Holdco, Inc. First Lien Secured Term Loan LIBOR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:PFBHoldcoIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Building Products		Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.00%		6.00%	6.00%
Investment Interest Rate		10.17%		10.17%	10.17%
Investment, Acquisition Date		Dec. 17, 2021
Investment Maturity Date		Dec. 17, 2026		Dec. 17, 2026	Dec. 17, 2026
Investment Owned, Balance, Principal Amount		$ 2,176
Investment Owned, at Cost		2,141
Investment Owned, at Fair Value		$ 2,144
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PGDentalNewJerseyParentLLCMember	whf:PGDentalNewJerseyParentLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	whf:LondonInterbankOfferedRateMember	Base Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.00%	8.25%	9.00%	8.25%	8.25%
Investment Interest Rate	15.85%	12.57%	15.85%	12.57%	12.57%
Investment, Acquisition Date	Nov. 25, 2020	Nov. 25, 2020
Investment Maturity Date	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025
Investment Owned, Balance, Principal Amount	$ 704	$ 352
Investment Owned, at Cost	696	347
Investment Owned, at Fair Value	$ 662	$ 300
Investment, Interest Rate, Paid in Kind	1.25%	0.75%	1.25%	0.75%	0.75%
Investment, Interest Rate, Paid in Cash	14.60%	11.82%	14.60%	11.82%	11.82%
Investment, Identifier [Axis]: PG Dental New Jersey Parent, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PGDentalNewJerseyParentLLCMember	whf:PGDentalNewJerseyParentLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]	Health Care Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.50%	9.00%	9.50%	9.00%	9.00%
Investment Interest Rate	14.69%	13.32%	14.69%	13.32%	13.32%
Investment, Acquisition Date	Nov. 25, 2020	Nov. 25, 2020
Investment Maturity Date	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025	Nov. 25, 2025
Investment Owned, Balance, Principal Amount	$ 13,276	$ 13,495
Investment Owned, at Cost	13,137	13,324
Investment Owned, at Fair Value	$ 12,483	$ 12,415
Investment, Interest Rate, Paid in Kind	1.25%	0.75%	1.25%	0.75%	0.75%
Investment, Interest Rate, Paid in Cash	13.44%	12.57%	13.44%	12.57%	12.57%
Investment, Identifier [Axis]: Patagonia Hold co Llc First Lien Secured Term Loans
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PatagoniaHoldcoLLCMember	whf:PatagoniaHoldcoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Alternative Carriers	Alternative Carriers	Alternative Carriers	Alternative Carriers	Alternative Carriers
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	5.75%	5.75%	5.75%	5.75%	5.75%
Investment Interest Rate	10.79%	9.96%	10.79%	9.96%	9.96%
Investment, Acquisition Date	Aug. 05, 2022	Aug. 05, 2022
Investment Maturity Date	Aug. 01, 2029	Aug. 01, 2029	Aug. 01, 2029	Aug. 01, 2029	Aug. 01, 2029
Investment Owned, Balance, Principal Amount	$ 14,515	$ 14,588
Investment Owned, at Cost	12,230	12,105
Investment Owned, at Fair Value	$ 12,414	$ 12,068
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.97%		11.97%
Investment, Acquisition Date	Mar. 17, 2023
Investment Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Investment Owned, at Fair Value	$ (4)
Fair Value As A Percentage of Member's Equity	(0.01%)
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	12.11%		12.11%
Investment, Acquisition Date	Mar. 17, 2023
Investment Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Investment Owned, Balance, Principal Amount	$ 251
Investment Owned, at Cost	244
Investment Owned, at Fair Value	$ 247
Fair Value As A Percentage of Member's Equity	0.78%
Investment, Identifier [Axis]: Pave America, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PaveAmericaLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.97%		11.97%
Investment, Acquisition Date	Mar. 17, 2023
Investment Maturity Date	Feb. 07, 2028		Feb. 07, 2028
Investment Owned, Balance, Principal Amount	$ 4,035
Investment Owned, at Cost	3,924
Investment Owned, at Fair Value	$ 3,953
Fair Value As A Percentage of Member's Equity	12.41%
Investment, Identifier [Axis]: Pennsylvania Machine Works., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.25%, Rate 11.09%, Due 3/8/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PennsylvaniaMachineWorksLLCMember	whf:PennsylvaniaMachineWorksLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery		Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.50%	11.09%	11.50%	11.09%	11.09%
Investment, Acquisition Date	Mar. 25, 2022	Mar. 25, 2022
Investment Maturity Date	Mar. 08, 2027	Mar. 08, 2027	Mar. 08, 2027	Mar. 08, 2027	Mar. 08, 2027
Investment Owned, Balance, Principal Amount	$ 6,594	$ 6,907
Investment Owned, at Cost	6,521	6,821
Investment Owned, at Fair Value	$ 6,594	$ 6,801
Fair Value As A Percentage of Member's Equity	20.70%	22.49%
Investment, Identifier [Axis]: PlayMonster LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		PlayMonster LLC [Member].
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredRevolvingLoanMember		whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Identifier [Axis]: Playmonster Group Equity Inc Common Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Identifier [Axis]: Playmonster Group Equity Inc Preferred Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Identifier [Axis]: Playmonster Group Equity, Inc Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Investment Owned, Balance, Principal Amount	$ 72	$ 72
Investment Owned, at Cost	$ 460	$ 460
Investment, Identifier [Axis]: Playmonster Group Equity, Inc. Preferred Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupEquityIncMember	whf:PlaymonsterGroupEquityIncMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Basis Spread, Variable Rate	14.00%	14.00%	14.00%	14.00%	14.00%
Investment, Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Investment Owned, Balance, Principal Amount	$ 36	$ 36
Investment Owned, at Cost	$ 3,600	$ 3,600
Investment, Interest Rate, Paid in Kind	14.00%	14.00%	14.00%	14.00%	14.00%
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember	whf:FirstLienSecuredLoanMember
Investment Owned, at Fair Value	$ 2,396	$ 2,977
Investment, Identifier [Axis]: Playmonster Group LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.00%	9.00%	9.00%	9.00%	9.00%
Investment, Acquisition Date	Jan. 24, 2022	Jan. 24, 2022
Investment Maturity Date	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026
Investment Owned, Balance, Principal Amount	$ 3,930	$ 3,662
Investment Owned, at Cost	3,661	3,662
Investment Owned, at Fair Value	$ 2,396	$ 2,977
Investment, Interest Rate, Paid in Kind	14.22%	13.36%	14.22%	13.36%	13.36%
Investment, Identifier [Axis]: Playmonster Group LLC Priority First Lien Secured Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember	whf:PriorityFirstLienSecuredLoanMember
Investment Owned, at Fair Value	$ 1,030	$ 176
Investment, Identifier [Axis]: Playmonster Group LLC, Priority First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PlaymonsterGroupLLCMember	whf:PlaymonsterGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember	whf:PriorityFirstLienSecuredTermLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Products	Leisure Products	Leisure Products	Leisure Products	Leisure Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment, Acquisition Date	Dec. 09, 2022	Dec. 09, 2022
Investment Maturity Date	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026	Jun. 08, 2026
Investment Owned, Balance, Principal Amount	$ 1,073	$ 184
Investment Owned, at Cost	1,045	176
Investment Owned, at Fair Value	$ 1,030	$ 176
Investment, Interest Rate, Paid in Kind	12.02%	11.47%	12.02%	11.47%	11.47%
Investment, Identifier [Axis]: Potpourri Group, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PotpourriGroupIncMember	whf:PotpourriGroupIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.50%	1.50%	1.50%	1.50%	1.50%
Investment, Basis Spread, Variable Rate	8.25%	8.25%	8.25%	8.25%	8.25%
Investment Interest Rate	13.50%	12.47%	13.50%	12.47%	12.47%
Investment, Acquisition Date	Jul. 03, 2019	Jul. 03, 2019
Investment Maturity Date	Jul. 03, 2024	Jul. 03, 2024	Jul. 03, 2024	Jul. 03, 2024	Jul. 03, 2024
Investment Owned, Balance, Principal Amount	$ 13,993	$ 14,187
Investment Owned, at Cost	13,930	14,091
Investment Owned, at Fair Value	$ 13,993	$ 14,187
Investment, Identifier [Axis]: Poultry Holdings LLC (HPP), First Lien Secured Term Loan, Floor 1.00%, Spread L plus 7.25%, Rate 8.25% (6.75% Cash + 1.50% PIK), Due 6/28/225
Schedule of Investments [Line Items]
Investment Interest Rate	11.70%		11.70%
Investment, Interest Rate, Paid in Kind	0.75%		0.75%
Investment, Interest Rate, Paid in Cash	10.95%		10.95%
Investment, Identifier [Axis]: Poultry Holdings LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 7.25%, Rate 11.67% (10.17% Cash + 1.50% PIK), Due 6/28/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PoultryHoldingsLLCMember	whf:PoultryHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Packaged Foods & Meats		Packaged Foods & Meats
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.25%	7.25%	7.25%	7.25%	7.25%
Investment Interest Rate		11.67%		11.67%	11.67%
Investment, Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Investment Maturity Date	Jun. 28, 2025	Jun. 28, 2025	Jun. 28, 2025	Jun. 28, 2025	Jun. 28, 2025
Investment Owned, Balance, Principal Amount	$ 7,108	$ 7,162
Investment Owned, at Cost	7,060	7,101
Investment Owned, at Fair Value	$ 7,002	$ 7,011
Investment, Interest Rate, Paid in Kind		1.50%		1.50%	1.50%
Investment, Interest Rate, Paid in Cash		10.17%		10.17%	10.17%
Fair Value As A Percentage of Member's Equity	21.98%	23.18%
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.64%	10.98%	11.64%	10.98%	10.98%
Investment, Acquisition Date	Jul. 11, 2022	Jul. 11, 2022
Investment Maturity Date	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026
Investment Owned, Balance, Principal Amount	$ 2,090
Investment Owned, at Cost	2,053
Investment Owned, at Fair Value	$ 2,056	$ (34)
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Revolver Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	5.96%	6.25%	5.96%	5.96%
Investment Interest Rate	11.58%	11.36%	11.58%	11.36%	11.36%
Investment, Acquisition Date	Jun. 25, 2021	Jun. 25, 2021
Investment Maturity Date	Jun. 25, 2024	Jun. 25, 2024	Jun. 25, 2024	Jun. 25, 2024	Jun. 25, 2024
Investment Owned, Balance, Principal Amount	$ 1,045	$ 836
Investment Owned, at Cost	1,039	828
Investment Owned, at Fair Value	$ 1,041	$ 780
Investment, Identifier [Axis]: Power Service Group CR Acquisition Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:PowerServiceGroupCrAcquisitionIncMember	whf:PowerServiceGroupCrAcquisitionIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]	Heavy Electrical Equipment [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.64%	10.98%	11.64%	10.98%	10.98%
Investment, Acquisition Date	Jun. 25, 2021	Jun. 25, 2021
Investment Maturity Date	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026	Jun. 25, 2026
Investment Owned, Balance, Principal Amount	$ 13,572	$ 14,130
Investment Owned, at Cost	13,400	13,922
Investment Owned, at Fair Value	$ 13,352	$ 13,774
Investment, Identifier [Axis]: Pressurized Holdings, LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Pressurized Holdings, LLC [Member]
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember		whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals [Member]		Diversified Chemicals [Member]
Investment, Acquisition Date	Mar. 16, 2023
Investment, Identifier [Axis]: Pressurized Holdings, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Pressurized Holdings, LLC [Member]
Investment, Type [Extensible Enumeration]	Preferred Units [Member]		Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Chemicals [Member]		Diversified Chemicals [Member]
Investment, Acquisition Date	Mar. 16, 2023
Investment Owned, at Cost	$ 4,537
Investment Owned, at Fair Value	$ 247
Investment, Interest Rate, Paid in Kind	14.00%		14.00%
Investment, Identifier [Axis]: Project Castle, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:ProjectCastleIncMember	whf:ProjectCastleIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Industrial Machinery	Industrial Machinery	Industrial Machinery	Industrial Machinery	Industrial Machinery
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Base Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	5.50%	5.50%	5.50%	5.50%	5.50%
Investment Interest Rate	10.41%	10.08%	10.41%	10.08%	10.08%
Investment, Acquisition Date	Jun. 09, 2022	Jun. 09, 2022
Investment Maturity Date	Jun. 01, 2029	Jun. 01, 2029	Jun. 01, 2029	Jun. 01, 2029	Jun. 01, 2029
Investment Owned, Balance, Principal Amount	$ 8,313	$ 8,355
Investment Owned, at Cost	7,560	7,535
Investment Owned, at Fair Value	$ 6,899	$ 7,269
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services		Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	12.64%	10.73%	12.64%	10.73%	10.73%
Investment, Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Investment Maturity Date	Jun. 30, 2025	Dec. 28, 2024	Jun. 30, 2025	Dec. 28, 2024	Dec. 28, 2024
Investment Owned, Balance, Principal Amount	$ 468	$ 468
Investment Owned, at Cost	465	464
Investment Owned, at Fair Value	$ 454	$ 431
Investment, Interest Rate, Paid in Kind	0.50%		0.50%
Investment, Interest Rate, Paid in Cash	12.14%		12.14%
Fair Value As A Percentage of Member's Equity	1.43%	1.43%
Investment, Identifier [Axis]: Quest Events, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services		Diversified Support Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	12.64%	10.73%	12.64%	10.73%	10.73%
Investment, Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Investment Maturity Date	Jun. 30, 2025	Dec. 28, 2024	Jun. 30, 2025	Dec. 28, 2024	Dec. 28, 2024
Investment Owned, Balance, Principal Amount	$ 11,769	$ 11,805
Investment Owned, at Cost	11,708	11,728
Investment Owned, at Fair Value	$ 11,567	$ 11,298
Investment, Interest Rate, Paid in Kind	0.50%		0.50%
Investment, Interest Rate, Paid in Cash	12.14%		12.14%
Fair Value As A Percentage of Member's Equity	36.32%	37.36%
Investment, Identifier [Axis]: Quest Events, LLC Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:QuestEventsLLCMember	whf:QuestEventsLLCMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services	Diversified Support Services
Investment, Acquisition Date	Dec. 28, 2018	Dec. 28, 2018
Investment Maturity Date	Dec. 08, 2025	Dec. 08, 2025	Dec. 08, 2025	Dec. 08, 2025	Dec. 08, 2025
Investment Owned, Balance, Principal Amount	$ 350	$ 347
Investment Owned, at Cost	350	347
Investment Owned, at Fair Value	$ 200	$ 110
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.64%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.53%	10.65%	11.53%	10.65%	10.65%
Investment, Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Investment Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount	$ 2,991	$ 3,007
Investment Owned, at Cost	2,954	2,963
Investment Owned, at Fair Value	$ 2,962	$ 2,947
Fair Value As A Percentage of Member's Equity	9.30%	9.75%
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.57%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.55%	10.60%	11.55%	10.60%	10.60%
Investment, Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Investment Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount	$ 533	$ 533
Investment Owned, at Cost	527	526
Investment Owned, at Fair Value	$ 530	$ 517
Fair Value As A Percentage of Member's Equity	1.66%	1.71%
Investment, Identifier [Axis]: RCKC Acquisitions LLC., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.25%, Rate 10.98%, Due 12/31/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RCKCAcquisitionsLLCMember	whf:RCKCAcquisitionsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	11.64%	10.98%	11.64%	10.98%	10.98%
Investment, Acquisition Date	Jan. 27, 2021	Jan. 27, 2021
Investment Maturity Date	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026	Dec. 31, 2026
Investment Owned, Balance, Principal Amount	$ 11,093	$ 11,150
Investment Owned, at Cost	10,962	11,000
Investment Owned, at Fair Value	$ 10,983	$ 10,929
Fair Value As A Percentage of Member's Equity	34.48%	36.14%
Investment, Identifier [Axis]: Road Safety Services, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:RoadSafetyServicesIncMember	whf:RoadSafetyServicesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Construction & Engineering		Construction & Engineering
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	5.00%	1.00%	5.00%	5.00%
Investment, Basis Spread, Variable Rate	6.80%	6.50%	6.80%	6.50%	6.50%
Investment Interest Rate	12.01%	10.92%	12.01%	10.92%	10.92%
Investment, Acquisition Date	Dec. 31, 2019	Dec. 31, 2019
Investment Maturity Date	Mar. 18, 2025	Mar. 18, 2025	Mar. 18, 2025	Mar. 18, 2025	Mar. 18, 2025
Investment Owned, Balance, Principal Amount	$ 10,861	$ 8,603
Investment Owned, at Cost	10,743	8,522
Investment Owned, at Fair Value	$ 10,692	$ 8,432
Fair Value As A Percentage of Member's Equity	33.57%	27.88%
Investment, Identifier [Axis]: Ross-Simons Topco, LP Preferred Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:Ross-SimonsTopcoLPMember	whf:Ross-SimonsTopcoLPMember
Investment, Type [Extensible Enumeration]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]	Preferred Units [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail	Broadline Retail
Investment, Basis Spread, Variable Rate	8.00%	8.00%	8.00%	8.00%	8.00%
Investment, Acquisition Date	Dec. 04, 2020	Dec. 04, 2020
Investment Owned, Balance, Principal Amount	$ 600	$ 600
Investment Owned, at Cost	514	514
Investment Owned, at Fair Value	$ 731	$ 714
Investment, Interest Rate, Paid in Kind	8.00%	8.00%	8.00%	8.00%	8.00%
Investment, Identifier [Axis]: SFS Global Holding Company Warrants
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SFSGlobalHoldingCompanyMember	whf:SFSGlobalHoldingCompanyMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]
Investment, Acquisition Date	Jun. 28, 2018	Jun. 28, 2018
Investment Maturity Date	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025
Investment, Identifier [Axis]: Salon Republic Holdings, LLC Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]	Common Stock [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies
Investment, Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Investment Owned, Balance, Principal Amount	$ 400	$ 400
Investment Owned, at Cost	400	400
Investment Owned, at Fair Value	$ 233	$ 400
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	7.00%	8.00%	7.00%	7.00%
Investment Interest Rate	13.23%	11.42%	13.23%	11.42%	11.42%
Investment, Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Investment Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027
Investment Owned, Balance, Principal Amount	$ 468	$ 56
Investment Owned, at Cost	460	55
Investment Owned, at Fair Value	$ 442	$ 55
Investment, Interest Rate, Paid in Kind	0.50%		0.50%
Investment, Interest Rate, Paid in Cash	12.73%		12.73%
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	7.00%	8.00%	7.00%	7.00%
Investment Interest Rate	13.24%	11.42%	13.24%	11.42%	11.42%
Investment, Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Investment Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027
Investment Owned, Balance, Principal Amount	$ 474	$ 258
Investment Owned, at Cost	462	251
Investment Owned, at Fair Value	$ 463	$ 251
Investment, Interest Rate, Paid in Kind	0.50%		0.50%
Investment, Interest Rate, Paid in Cash	12.74%		12.74%
Investment, Identifier [Axis]: Salon Republic Holdings, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	8.00%	7.50%	8.00%	7.50%	7.50%
Investment Interest Rate	13.20%	11.73%	13.20%	11.73%	11.73%
Investment, Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Investment Maturity Date	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027	Dec. 02, 2027
Investment Owned, Balance, Principal Amount	$ 5,139	$ 5,155
Investment Owned, at Cost	5,003	5,003
Investment Owned, at Fair Value	$ 5,012	$ 5,003
Investment, Interest Rate, Paid in Kind	0.50%		0.50%
Investment, Interest Rate, Paid in Cash	12.70%		12.70%
Investment, Identifier [Axis]: Salon Republic Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SalonRepublicHoldingsLlcMember	whf:SalonRepublicHoldingsLlcMember
Investment, Type [Extensible Enumeration]	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember	us-gaap:PreferredStockMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies	Real Estate Operating Companies
Investment, Acquisition Date	Dec. 02, 2022	Dec. 02, 2022
Investment Owned, Balance, Principal Amount	$ 200	$ 200
Investment Owned, at Cost	200	200
Investment Owned, at Fair Value	$ 200	$ 200
Investment, Interest Rate, Paid in Kind	8.00%	8.00%	8.00%	8.00%	8.00%
Investment, Identifier [Axis]: Sigue Corporation Warrants
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SigueCorporationMember	whf:SigueCorporationMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]	Other Diversified Financial Services [Member]
Investment, Acquisition Date	Jun. 28, 2018	Jun. 28, 2018
Investment Maturity Date	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025	Dec. 28, 2025
Investment Owned, Balance, Principal Amount	$ 22	$ 22
Investment Owned, at Cost	2,890	2,890
Investment Owned, at Fair Value	$ 3,397	$ 3,788
Investment, Identifier [Axis]: Sklar Holdings, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		Sklar Holdings, Inc [Member]
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		us-gaap:PrimeRateMember		us-gaap:PrimeRateMember	us-gaap:PrimeRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		8.75%		8.75%	8.75%
Investment Interest Rate		16.25%		16.25%	16.25%
Investment, Acquisition Date		Nov. 13, 2019
Investment Maturity Date		May 13, 2023		May 13, 2023	May 13, 2023
Investment Owned, Balance, Principal Amount		$ 7,353
Investment Owned, at Cost		7,302
Investment Owned, at Fair Value		$ 6,537
Investment, Interest Rate, Paid in Kind		2.00%		2.00%	2.00%
Investment, Interest Rate, Paid in Cash		14.25%		14.25%	14.25%
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SleepOpCoLLCMember	whf:SleepOpCoLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.75%	10.40%	11.75%	10.40%	10.40%
Investment, Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Investment Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026
Investment Owned, Balance, Principal Amount	$ 832
Investment Owned, at Cost	821
Investment Owned, at Fair Value	$ 828	$ (39)
Investment, Identifier [Axis]: Sleep OpCo LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SleepOpCoLLCMember	whf:SleepOpCoLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]	Home Furnishings [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.61%	10.40%	11.61%	10.40%	10.40%
Investment, Acquisition Date	Oct. 12, 2021	Oct. 12, 2021
Investment Maturity Date	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026	Oct. 12, 2026
Investment Owned, Balance, Principal Amount	$ 20,721	$ 20,834
Investment Owned, at Cost	20,447	20,517
Investment Owned, at Fair Value	$ 20,505	$ 20,210
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread E plus 6.25%, Rate 9.00%, Due 4/28/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SmaltoInc.Member	whf:SmaltoInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances		Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember	whf:EuroInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.25%	6.25%	6.25%	6.25%	6.25%
Investment Interest Rate	9.85%	9.00%	9.85%	9.00%	9.00%
Investment, Acquisition Date	May 04, 2022	May 04, 2022
Investment Maturity Date	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028
Investment Owned, Balance, Principal Amount	$ 6,608	$ 6,642
Investment Owned, at Cost	6,843	6,865
Investment Owned, at Fair Value	$ 7,043	$ 6,899
Fair Value As A Percentage of Member's Equity	22.11%	22.81%
Investment, Identifier [Axis]: Smalto Inc., First Lien Secured Term Loan, Floor 1.00%, Spread SF plus 6.00%, Rate 11.04%, Due 4/28/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SmaltoInc.Member	whf:SmaltoInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances		Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.39%	11.04%	11.39%	11.04%	11.04%
Investment, Acquisition Date	May 04, 2022	May 04, 2022
Investment Maturity Date	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028	Apr. 28, 2028
Investment Owned, Balance, Principal Amount	$ 1,006	$ 1,012
Investment Owned, at Cost	990	994
Investment Owned, at Fair Value	$ 991	$ 986
Fair Value As A Percentage of Member's Equity	3.11%	3.26%
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Class A Common Stock
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember	us-gaap:CommonClassAMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Investment Owned, Balance, Principal Amount	$ 2	$ 2
Investment Owned, at Cost	1,941	1,941
Investment Owned, at Fair Value	$ 182	$ 131
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc First Lien Secured Term Loan C
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember	whf:FirstLienSecuredTermLoanCMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Basis Spread, Variable Rate	9.50%	9.50%	9.50%	9.50%	9.50%
Investment Interest Rate		9.50%		9.50%	9.50%
Investment, Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Investment Owned, Balance, Principal Amount	$ 1,580	$ 1,268
Investment Owned, at Cost	1,577	1,265
Investment Owned, at Fair Value	$ 1,563	$ 1,198
Investment, Interest Rate, Paid in Kind	9.50%	9.50%	9.50%	9.50%	9.50%
Investment, Interest Rate, Paid in Cash		0.00%		0.00%	0.00%
Investment, Identifier [Axis]: Snap Fitness Holdings, Inc Warrants
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SnapFitnessHoldingsIncMember	whf:SnapFitnessHoldingsIncMember
Investment, Type [Extensible Enumeration]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]	Warrant [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]	Leisure Facilities [Member]
Investment, Acquisition Date	Jun. 29, 2020	Jun. 29, 2020
Investment Maturity Date	Jun. 28, 2028	Jun. 28, 2028	Jun. 28, 2028	Jun. 28, 2028	Jun. 28, 2028
Investment Owned, Balance, Principal Amount	$ 1	$ 1
Investment Owned, at Cost	793	793
Investment Owned, at Fair Value	$ 74	$ 53
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 10.93
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.00%		0.00%
Investment, Basis Spread, Variable Rate	6.75%		6.75%
Investment Interest Rate	11.69%		11.69%
Investment, Acquisition Date	Mar. 23, 2023
Investment Maturity Date	Sep. 28, 2029		Sep. 28, 2029
Investment Owned, Balance, Principal Amount	$ 535
Investment Owned, at Cost	652
Investment Owned, at Fair Value	$ 657
Fair Value As A Percentage of Member's Equity	2.06%
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	11.80%	11.05%	11.80%	11.05%	11.05%
Investment, Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Investment Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029
Investment Owned, Balance, Principal Amount	$ 365	$ 53
Investment Owned, at Cost	355	51
Investment Owned, at Fair Value	$ 359	$ 52
Fair Value As A Percentage of Member's Equity	1.13%
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Delayed Draw Loan Interest Rate 11.55 One
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	11.80%	11.05%	11.80%	11.05%	11.05%
Investment, Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Investment Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029
Investment Owned, at Fair Value		$ (62)
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan CDOR
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	12.13%	11.61%	12.13%	11.61%	11.61%
Investment, Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Investment Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029
Investment Owned, Balance, Principal Amount	$ 3,839			$ 3,837
Investment Owned, at Cost	2,729	$ 2,729
Investment Owned, at Fair Value	$ 2,845	$ 2,749
Fair Value As A Percentage of Member's Equity	8.93%
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SF
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	11.80%	11.05%	11.80%	11.05%	11.05%
Investment, Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Investment Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029
Investment Owned, Balance, Principal Amount	$ 2,783	$ 2,783
Investment Owned, at Cost	2,714	2,709
Investment Owned, at Fair Value	$ 2,736	$ 2,713
Fair Value As A Percentage of Member's Equity	8.59%
Investment, Identifier [Axis]: Solar Holdings Bidco Limited First Lien Secured Term Loan SONIA
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Solar Holdings Bidco Limited	Solar Holdings Bidco Limited
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services	Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember	whf:SterlingOvernightIndexAverageMember
Investment, Interest Rate, Floor	0.00%	0.00%	0.00%	0.00%	0.00%
Investment, Basis Spread, Variable Rate	6.75%	6.75%	6.75%	6.75%	6.75%
Investment Interest Rate	11.68%	10.18%	11.68%	10.18%	10.18%
Investment, Acquisition Date	Mar. 23, 2023	Sep. 30, 2022
Investment Maturity Date	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029	Sep. 28, 2029
Investment Owned, Balance, Principal Amount	$ 169				£ 168
Investment Owned, at Cost	204	$ 182
Investment Owned, at Fair Value	$ 211	$ 199
Fair Value As A Percentage of Member's Equity	0.66%
Investment, Identifier [Axis]: Source Code Holdings Llc First Lien Secured Term Loan 1.00 Spread SF Plus 6.50 Rate 11.41 Due 7/30/2027 One
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.70%		11.70%
Investment, Acquisition Date	Aug. 10, 2021
Investment Maturity Date	Jul. 30, 2027		Jul. 30, 2027
Investment Owned, Balance, Principal Amount	$ 4,108
Investment Owned, at Cost	4,052
Investment Owned, at Fair Value	$ 4,067
Fair Value As A Percentage of Member's Equity	12.77%
Investment, Identifier [Axis]: Source Code Holdings, LLC First Lien Secured Term Loan 1.00%, Spread SF PLUS, 6.50%, Rate 11.41% Due 7/30/2027
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	6.50%		6.50%
Investment Interest Rate	11.70%		11.70%
Investment, Acquisition Date	Aug. 10, 2021
Investment Maturity Date	Jul. 30, 2027		Jul. 30, 2027
Investment Owned, Balance, Principal Amount	$ 15,029
Investment Owned, at Cost	14,823
Investment Owned, at Fair Value	$ 14,875
Fair Value As A Percentage of Member's Equity	46.70%
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		10.92%		10.92%	10.92%
Investment, Acquisition Date		Aug. 10, 2021
Investment Maturity Date		Jul. 30, 2027		Jul. 30, 2027	Jul. 30, 2027
Investment Owned, at Fair Value		$ 2
Fair Value As A Percentage of Member's Equity		0.01%
Investment, Identifier [Axis]: Source Code Holdings, LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus, 6.50%, Rate 10.92%, Due 7/30/27
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:SourceCodeHoldingsLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		10.92%		10.92%	10.92%
Investment, Acquisition Date		Aug. 10, 2021
Investment Maturity Date		Jul. 30, 2027		Jul. 30, 2027	Jul. 30, 2027
Investment Owned, Balance, Principal Amount		$ 15,105
Investment Owned, at Cost		14,874
Investment Owned, at Fair Value		$ 14,882
Fair Value As A Percentage of Member's Equity		49.21%
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.17% (11.17% Cash + 2.00% PIK), Due 12/16/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:StellaandChewysLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		8.75%		8.75%	8.75%
Investment Interest Rate		13.17%		13.17%	13.17%
Investment, Acquisition Date		Mar. 26, 2021
Investment Maturity Date		Dec. 16, 2025		Dec. 16, 2025	Dec. 16, 2025
Investment Owned, Balance, Principal Amount		$ 1,375
Investment Owned, at Cost		1,362
Investment Owned, at Fair Value		$ 1,320
Investment, Interest Rate, Paid in Kind		2.00%		2.00%	2.00%
Investment, Interest Rate, Paid in Cash		11.17%		11.17%	11.17%
Fair Value As A Percentage of Member's Equity		4.37%
Investment, Identifier [Axis]: Stella & Chewy's LLC., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 8.75%, Rate 13.40% (11.40% Cash + 2.00% PIK), Due 12/16/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:StellaandChewysLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		8.75%		8.75%	8.75%
Investment Interest Rate		13.40%		13.40%	13.40%
Investment, Acquisition Date		Dec. 29, 2020
Investment Maturity Date		Dec. 16, 2025		Dec. 16, 2025	Dec. 16, 2025
Investment Owned, Balance, Principal Amount		$ 3,893
Investment Owned, at Cost		3,849
Investment Owned, at Fair Value		$ 3,738
Investment, Interest Rate, Paid in Kind		2.00%		2.00%	2.00%
Investment, Interest Rate, Paid in Cash		11.40%		11.40%	11.40%
Fair Value As A Percentage of Member's Equity		12.36%
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:StoiclaneMidcoLlcMember	whf:StoiclaneMidcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.89%	12.20%	12.89%	12.20%	12.20%
Investment, Acquisition Date	Nov. 04, 2022	Nov. 04, 2022
Investment Maturity Date	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027
Investment Owned, Balance, Principal Amount	$ 5,573	$ 3,621
Investment Owned, at Cost	5,483	3,563
Investment Owned, at Fair Value	$ 5,556	$ 3,563
Investment, Identifier [Axis]: StoicLane MidCo, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:StoiclaneMidcoLlcMember	whf:StoiclaneMidcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]	Real Estate Development [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.50%	7.50%	7.50%	7.50%
Investment Interest Rate	12.89%	11.82%	12.89%	11.82%	11.82%
Investment, Acquisition Date	Nov. 04, 2022	Nov. 04, 2022
Investment Maturity Date	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027	Nov. 04, 2027
Investment Owned, Balance, Principal Amount	$ 4,630	$ 4,653
Investment Owned, at Cost	4,529	4,540
Investment Owned, at Fair Value	$ 4,584	$ 4,540
Investment, Identifier [Axis]: Sunless, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:SunlessIncMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Personal Products		Personal Products	Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]		whf:LondonInterbankOfferedRateMember		whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		11.23%		11.23%	11.23%
Investment, Acquisition Date		Jun. 30, 2022
Investment Maturity Date		Aug. 13, 2025		Aug. 13, 2025	Aug. 13, 2025
Investment Owned, Balance, Principal Amount		$ 2,086
Investment Owned, at Cost		2,051
Investment Owned, at Fair Value		$ 2,071
Investment, Identifier [Axis]: Sunless, Inc., First Lien Secured Revolving Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.24%, Due 8/13/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SunlessInc.Member	whf:SunlessIncMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products		Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	12.03%	11.24%	12.03%	11.24%	11.24%
Investment, Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Investment Maturity Date	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025
Investment Owned, Balance, Principal Amount	$ 310	$ 266
Investment Owned, at Cost	309	264
Investment Owned, at Fair Value	$ 311	$ 270
Fair Value As A Percentage of Member's Equity	0.98%	0.89%
Investment, Identifier [Axis]: Sunless, Inc.., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 11.23%, Due 8/13/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:SunlessInc.Member	whf:SunlessIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Personal Products		Personal Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	12.09%	11.23%	12.09%	11.23%	11.23%
Investment, Acquisition Date	Oct. 21, 2019	Oct. 21, 2019
Investment Maturity Date	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025	Aug. 13, 2025
Investment Owned, Balance, Principal Amount	$ 5,730	$ 3,679
Investment Owned, at Cost	5,664	3,631
Investment Owned, at Fair Value	$ 5,715	$ 3,679
Fair Value As A Percentage of Member's Equity	17.94%	12.18%
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Delayed Draw Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TOURIntermediateHoldingsLLCMember	whf:TOURIntermediateHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	whf:FirstLienSecuredDelayedDrawLoanMember	First Lien Secured Term Loan [Member]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage		Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.70%	10.88%	11.70%	10.88%	10.88%
Investment, Acquisition Date	May 19, 2020	May 19, 2020
Investment Maturity Date	May 15, 2025	May 15, 2025	May 15, 2025	May 15, 2025	May 15, 2025
Investment Owned, Balance, Principal Amount	$ 2,867	$ 2,468
Investment Owned, at Cost	2,846	2,458
Investment Owned, at Fair Value	$ 2,867	$ 2,468
Fair Value As A Percentage of Member's Equity	9.00%	8.16%
Investment, Identifier [Axis]: TOUR Intermediate Holdings., First Lien Secured Term Loan, Floor 1.00%, Spread L plus 6.50%, Rate 10.88%, Due 5/15/25
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TOURIntermediateHoldingsLLCMember	whf:TOURIntermediateHoldingsLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	First Lien Secured Term Loan [Member]	whf:FirstLienSecuredDelayedDrawLoanMember	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Investment Banking & Brokerage		Investment Banking & Brokerage
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.70%	10.88%	11.70%	10.88%	10.88%
Investment, Acquisition Date	May 19, 2020	May 19, 2020
Investment Maturity Date	May 15, 2025	May 15, 2025	May 15, 2025	May 15, 2025	May 15, 2025
Investment Owned, Balance, Principal Amount	$ 2,394	$ 3,077
Investment Owned, at Cost	2,386	3,049
Investment Owned, at Fair Value	$ 2,394	$ 3,077
Fair Value As A Percentage of Member's Equity	7.52%	10.18%
Investment, Identifier [Axis]: Team Car Care Holdings, First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TeamCarCareHoldingsLLCMember	whf:TeamCarCareHoldingsLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Automotive Retail [Member]	Automotive Retail [Member]	Automotive Retail [Member]	Automotive Retail [Member]	Automotive Retail [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]	Base Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.48%	7.98%	7.48%	7.98%	7.98%
Investment Interest Rate	12.74%	11.83%	12.74%	11.83%	11.83%
Investment, Acquisition Date	Feb. 16, 2018	Feb. 16, 2018
Investment Maturity Date	Jun. 28, 2024	Jun. 28, 2024	Jun. 28, 2024	Jun. 28, 2024	Jun. 28, 2024
Investment Owned, Balance, Principal Amount	$ 13,902	$ 14,363
Investment Owned, at Cost	13,868	14,311
Investment Owned, at Fair Value	$ 13,902	$ 14,363
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Technology Hardware, Storage & Peripherals		Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		9.25%		9.25%	9.25%
Investment Interest Rate		13.67%		13.67%	13.67%
Investment, Acquisition Date		May 12, 2022
Investment Maturity Date		Oct. 15, 2025		Oct. 15, 2025	Oct. 15, 2025
Investment Owned, at Fair Value		$ 3
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Telestream Holdings Corporation [Member]	Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.75%	9.25%	9.75%	9.25%	9.25%
Investment Interest Rate	14.94%	13.67%	14.94%	13.67%	13.67%
Investment, Acquisition Date	Oct. 15, 2020	Oct. 15, 2020
Investment Maturity Date	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025
Investment Owned, Balance, Principal Amount	$ 932	$ 927
Investment Owned, at Cost	918	910
Investment Owned, at Fair Value	$ 930	$ 928
Investment, Identifier [Axis]: Telestream Holdings Corporation First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Telestream Holdings Corporation [Member]	Telestream Holdings Corporation [Member]
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals	Technology Hardware, Storage & Peripherals
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	9.75%	9.25%	9.75%	9.25%	9.25%
Investment Interest Rate	14.99%	13.67%	14.99%	13.67%	13.67%
Investment, Acquisition Date	Oct. 15, 2020	Oct. 15, 2020
Investment Maturity Date	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025	Oct. 15, 2025
Investment Owned, Balance, Principal Amount	$ 15,844	$ 15,846
Investment Owned, at Cost	15,607	15,556
Investment Owned, at Fair Value	$ 15,758	$ 15,762
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TheKyjenCompanyLLCMember	whf:TheKyjenCompanyLLCMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Products [Member]	Household Products [Member]	Household Products [Member]	Household Products [Member]	Household Products [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	6.58%	7.50%	6.58%	6.58%
Investment Interest Rate	13.14%	10.90%	13.14%	10.90%	10.90%
Investment, Acquisition Date	Apr. 05, 2021	Apr. 05, 2021
Investment Maturity Date	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026
Investment Owned, Balance, Principal Amount		$ 798
Investment Owned, at Cost		790
Investment Owned, at Fair Value	$ (58)	$ 724
Investment, Interest Rate, Paid in Kind	1.00%	0.50%	1.00%	0.50%	0.50%
Investment, Interest Rate, Paid in Cash	12.14%	10.40%	12.14%	10.40%	10.40%
Investment, Identifier [Axis]: The Kyjen Company, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TheKyjenCompanyLLCMember	whf:TheKyjenCompanyLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Products [Member]	Household Products [Member]	Household Products [Member]	Household Products [Member]	Household Products [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.50%	7.00%	7.50%	7.00%	7.00%
Investment Interest Rate	13.14%	11.65%	13.14%	11.65%	11.65%
Investment, Acquisition Date	Apr. 05, 2021	Apr. 05, 2021
Investment Maturity Date	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026	Apr. 05, 2026
Investment Owned, Balance, Principal Amount	$ 11,357	$ 11,334
Investment Owned, at Cost	11,264	11,223
Investment Owned, at Fair Value	$ 10,564	$ 10,429
Investment, Interest Rate, Paid in Kind	1.00%	0.50%	1.00%	0.50%	0.50%
Investment, Interest Rate, Paid in Cash	12.14%	11.15%	12.14%	11.15%	11.15%
Investment, Identifier [Axis]: Token Buyer, Inc First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TokenBuyerIncMember	whf:TokenBuyerIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Household Appliances	Household Appliances	Household Appliances	Household Appliances	Household Appliances
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	0.50%	0.50%	0.50%	0.50%	0.50%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.20%	10.73%	11.20%	10.73%	10.73%
Investment, Acquisition Date	May 26, 2022	May 26, 2022
Investment Maturity Date	May 31, 2029	May 31, 2029	May 31, 2029	May 31, 2029	May 31, 2029
Investment Owned, Balance, Principal Amount	$ 7,178	$ 7,214
Investment Owned, at Cost	6,688	6,680
Investment Owned, at Fair Value	$ 6,171	$ 6,615
Investment, Identifier [Axis]: Transervice Holdings, Inc. (d/b/a Transervice Logistics, Inc.) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TranserviceHoldingsIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Air Freight & Logistics		Air Freight & Logistics
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	2.00%		2.00%
Investment, Basis Spread, Variable Rate	7.50%		7.50%
Investment Interest Rate	12.71%		12.71%
Investment, Acquisition Date	Jun. 29, 2023
Investment Maturity Date	Jun. 29, 2028		Jun. 29, 2028
Investment Owned, Balance, Principal Amount	$ 9,000
Investment Owned, at Cost	8,730
Investment Owned, at Fair Value	$ 8,730
Investment, Identifier [Axis]: Trimlite Buyer LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TrimliteBuyerLLCMember	whf:TrimliteBuyerLLCMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Building Products	Building Products	Building Products	Building Products	Building Products
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember	whf:CanadianDollarOfferedRateMember
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	11.38%	10.88%	11.38%	10.88%	10.88%
Investment, Acquisition Date	Jul. 27, 2021	Jul. 27, 2021
Investment Maturity Date	Jul. 27, 2026	Jul. 27, 2026	Jul. 27, 2026	Jul. 27, 2026	Jul. 27, 2026
Investment Owned, Balance, Principal Amount			$ 19,624	$ 20,582
Investment Owned, at Cost	$ 15,439	$ 16,162
Investment Owned, at Fair Value	$ 14,661	$ 14,926
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:TrueBlueCarWashLLCMember
Investment, Type [Extensible Enumeration]		whf:FirstLienSecuredDelayedDrawLoanMember		whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services [Member]		Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.50%		6.50%	6.50%
Investment Interest Rate		10.92%		10.92%	10.92%
Investment, Acquisition Date		Oct. 17, 2019
Investment Maturity Date		Oct. 17, 2024		Oct. 17, 2024	Oct. 17, 2024
Investment Owned, Balance, Principal Amount		$ 4,160
Investment Owned, at Cost		4,107
Investment Owned, at Fair Value		$ 4,189
Investment, Identifier [Axis]: True Blue Car Wash, LLC First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]		whf:TrueBlueCarWashLLCMember
Investment, Type [Extensible Enumeration]		First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]		srt:NorthAmericaMember		srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]		Specialized Consumer Services [Member]		Specialized Consumer Services [Member]	Specialized Consumer Services [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor		1.00%		1.00%	1.00%
Investment, Basis Spread, Variable Rate		6.88%		6.88%	6.88%
Investment Interest Rate		11.30%		11.30%	11.30%
Investment, Acquisition Date		Oct. 17, 2019
Investment Maturity Date		Oct. 17, 2024		Oct. 17, 2024	Oct. 17, 2024
Investment Owned, Balance, Principal Amount		$ 9,903
Investment Owned, at Cost		9,822
Investment Owned, at Fair Value		$ 9,942
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Revolving Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/28
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TurnberrySolutionsInc.Member	whf:TurnberrySolutionsInc.Member
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	5.00%	6.00%	5.00%	6.00%	6.00%
Investment Interest Rate	10.95%	9.19%	10.95%	9.19%	9.19%
Investment, Acquisition Date	Aug. 10, 2021	Aug. 10, 2021
Investment Maturity Date	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026
Investment Owned, at Fair Value		$ (4)
Fair Value As A Percentage of Member's Equity		(0.01%)
Investment, Identifier [Axis]: Turnberry Solutions., First Lien Secured Term Loan, Floor 1.00%, Spread SF Plus 6.00%, Rate 9.19%, Due 9/2/26
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:TurnberrySolutionsInc.Member	whf:TurnberrySolutionsInc.Member
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	6.00%	6.00%	6.00%	6.00%	6.00%
Investment Interest Rate	10.95%	9.19%	10.95%	9.19%	9.19%
Investment, Acquisition Date	Aug. 10, 2021	Aug. 10, 2021
Investment Maturity Date	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026	Sep. 02, 2026
Investment Owned, Balance, Principal Amount	$ 6,057	$ 6,087
Investment Owned, at Cost	5,980	5,998
Investment Owned, at Fair Value	$ 5,983	$ 5,964
Fair Value As A Percentage of Member's Equity	18.78%	19.72%
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Delayed Draw Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:UsMethanolMidcoLlcMember	whf:UsMethanolMidcoLlcMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember	whf:FirstLienSecuredDelayedDrawLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment, Acquisition Date	Dec. 20, 2022	Dec. 20, 2022
Investment Maturity Date	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027
Investment Owned, at Fair Value	$ (81)
Investment, Interest Rate, Paid in Kind		12.17%		12.17%	12.17%
Investment, Identifier [Axis]: US Methanol Midco LLC (d/b/a US Methanol LLC) First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:UsMethanolMidcoLlcMember	whf:UsMethanolMidcoLlcMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]	Commodity Chemicals [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%	1.00%	1.00%	1.00%	1.00%
Investment, Basis Spread, Variable Rate	7.75%	7.75%	7.75%	7.75%	7.75%
Investment, Acquisition Date	Dec. 20, 2022	Dec. 20, 2022
Investment Maturity Date	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027	Dec. 20, 2027
Investment Owned, Balance, Principal Amount	$ 4,972	$ 4,667
Investment Owned, at Cost	4,868	4,551
Investment Owned, at Fair Value	$ 4,874	$ 4,551
Investment, Interest Rate, Paid in Kind	12.93%	12.17%	12.93%	12.17%	12.17%
Investment, Identifier [Axis]: UserZoom Technologies, Inc. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:UserzoomTechnologiesIncMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]		First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Application Software		Application Software
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]		Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Investment, Interest Rate, Floor	1.00%		1.00%
Investment, Basis Spread, Variable Rate	7.50%		7.50%
Investment Interest Rate	12.42%		12.42%
Investment, Acquisition Date	Jan. 12, 2023
Investment Maturity Date	Apr. 05, 2029		Apr. 05, 2029
Investment Owned, Balance, Principal Amount	$ 9,819
Investment Owned, at Cost	9,546
Investment Owned, at Fair Value	$ 9,626
Investment, Identifier [Axis]: Vistria Blocked MGT Investor, LP (d/b/a MGT Consulting Group) Series A Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:VistriaBlockedMgtInvestorLpMember
Investment, Type [Extensible Enumeration]	whf:ClassAUnitsMember		whf:ClassAUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	IT Consulting And Other Services		IT Consulting And Other Services
Investment, Acquisition Date	Apr. 10, 2023
Investment Owned, at Cost	$ 314
Investment Owned, at Fair Value	$ 314
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Revolving Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHLessorCorpMember	whf:WHLessorCorpMember
Investment, Type [Extensible Enumeration]	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember	whf:FirstLienSecuredRevolvingLoanMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	us-gaap:PrimeRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.50%	1.00%	6.50%	6.50%
Investment, Basis Spread, Variable Rate	5.59%	5.59%	5.59%	5.59%	5.59%
Investment Interest Rate	10.70%	9.97%	10.70%	9.97%	9.97%
Investment, Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Investment Maturity Date	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024
Investment Owned, at Fair Value	$ 3	$ 4
Fair Value As A Percentage of Member's Equity	0.01%	0.01%
Investment, Identifier [Axis]: WH Lessor Corp. First Lien Secured Term Loan
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHLessorCorpMember	whf:WHLessorCorpMember
Investment, Type [Extensible Enumeration]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]	First Lien Secured Term Loan [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember		srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Environmental & Facilities Services		Environmental & Facilities Services
Investment, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Interest Rate, Floor	1.00%	6.50%	1.00%	6.50%	6.50%
Investment, Basis Spread, Variable Rate	5.59%	5.59%	5.59%	5.59%	5.59%
Investment Interest Rate	10.70%	9.97%	10.70%	9.97%	9.97%
Investment, Acquisition Date	Jan. 22, 2020	Jan. 22, 2020
Investment Maturity Date	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024	Dec. 26, 2024
Investment Owned, Balance, Principal Amount	$ 7,432	$ 7,470
Investment Owned, at Cost	7,381	7,402
Investment Owned, at Fair Value	$ 7,432	$ 7,470
Fair Value As A Percentage of Member's Equity	23.33%	24.70%
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Equity
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundLLCMember	whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment, Type [Extensible Enumeration]	Equity Investments	Equity Investments	Equity Investments	Equity Investments	Equity Investments
Investment Owned, at Fair Value	$ 20,929	$ 20,160				15,607
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Interests
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundMember	whf:WHFSTRSOhioSeniorLoanFundMember
Investment, Type [Extensible Enumeration]	whf:LLCInterestsMember	whf:LLCInterestsMember	whf:LLCInterestsMember	whf:LLCInterestsMember	whf:LLCInterestsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]
Investment, Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Investment Owned, Balance, Principal Amount	$ 20,368	$ 20,000
Investment Owned, at Cost	20,368	20,000
Investment Owned, at Fair Value	$ 20,929	$ 20,160
Investment, Identifier [Axis]: WHF STRS Ohio Senior Loan Fund LLC Subordinated Note
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WHFSTRSOhioSeniorLoanFundLLCMember	whf:WHFSTRSOhioSeniorLoanFundLLCMember
Investment, Type [Extensible Enumeration]	Subordinated Debt [Member]	Subordinated Debt [Member]	Subordinated Debt [Member]	Subordinated Debt [Member]	Subordinated Debt [Member]
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]	Specialized Finance [Member]
Investment, Variable Interest Rate, Type [Extensible Enumeration]	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember	whf:LondonInterbankOfferedRateMember
Investment, Basis Spread, Variable Rate	6.50%	6.50%	6.50%	6.50%	6.50%
Investment Interest Rate	11.66%	10.67%	11.66%	10.67%	10.67%
Investment, Acquisition Date	Jul. 19, 2019	Jul. 19, 2019
Investment Owned, Balance, Principal Amount	$ 81,472	$ 80,000
Investment Owned, at Cost	81,472	80,000
Investment Owned, at Fair Value	$ 81,472	$ 80,000				$ 60,000
Investment, Identifier [Axis]: What If Media Group, LLC Common Units
Schedule of Investments [Line Items]
Investment, Issuer Name [Extensible Enumeration]	whf:WhatIfMediaGroupLLCMember	whf:WhatIfMediaGroupLLCMember
Investment, Type [Extensible Enumeration]	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember	whf:CommonUnitsMember
Investment, Issuer Geographic Region [Extensible Enumeration]	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember	srt:NorthAmericaMember
Investment, Industry Sector [Extensible Enumeration]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]	Interactive Media And Services [Member]
Investment, Acquisition Date	Jul. 02, 2021	Jul. 02, 2021
Investment Owned, Balance, Principal Amount	$ 851	$ 851
Investment Owned, at Cost	851	851
Investment Owned, at Fair Value	$ 1,618	$ 1,943

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INVESTMENTS - Superscript (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
STRS JV's portfolio company investments as a percentage of members' equity	223.86%	228.75%
Investments	$ 728,352	$ 760,228
STRS JV
Schedule of Investments [Line Items]
STRS JV's portfolio company investments as a percentage of members' equity	1019.00%	940.00%
STRS JV's portfolio company investments as a percentage of total assets	94.00%	93.00%
Outstanding commitments to fund investments	$ 22,703	$ 24,549
Investments	$ 324,501	$ 284,259

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INVESTMENTS - Forward Currency Contracts (Details) € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands	Jun. 30, 2023 USD ($)	Jun. 30, 2023 CAD ($)	Jun. 30, 2023 GBP (£)	Jun. 30, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 EUR (€)
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, CAD, Settlement Date 1/27/22
Schedule of Investments [Line Items]
Currency to be sold						$ 256
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, CAD, Settlement Date 1/27/23
Schedule of Investments [Line Items]
Currency to be sold						$ 256
Currency to be purchased					$ 189
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, CAD, Settlement Date 8/4/23
Schedule of Investments [Line Items]
Currency to be sold		$ 339
Currency to be purchased	$ 251
Net Amount of Derivative Liabilities	5
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, EUR, Settlement Date 1/27/23
Schedule of Investments [Line Items]
Currency to be sold | €								€ 1,111
Currency to be purchased					1,128
Net Amount of Derivative Liabilities					64
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, EUR, Settlement Date 8/4/23
Schedule of Investments [Line Items]
Currency to be sold | £			£ 893
Currency to be purchased	989
Net Amount of Derivative Assets	13
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, GBP, Settlement Date 1/27/23
Schedule of Investments [Line Items]
Currency to be sold | £							£ 229
Currency to be purchased					266
Net Amount of Derivative Liabilities					11
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts, Morgan Stanley, GBP, Settlement Date 8/4/23
Schedule of Investments [Line Items]
Currency to be sold | €				€ 1,158
Currency to be purchased	1,458
Net Amount of Derivative Liabilities	14
STRS JV
Schedule of Investments [Line Items]
Net Amount of Derivative Assets	13
Net Amount of Derivative Liabilities	$ 19				$ 75

XML

INVESTMENTS - Selected Balance Sheet Information For STRS JV (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022
Assets
Investments	$ 728,352	$ 760,228
Cash and cash equivalents	10,412	9,508	$ 9,231
Total assets	772,177	796,474
Liabilities
Credit facility	424,711	440,427
Interest payable on credit facility	2,750	2,774
Unrealized depreciation on foreign currency forward contracts	9	3
Total liabilities	446,881	464,087
Total liabilities and total net assets	772,177	796,474
Investments, amortized cost	760,023	782,429
Unamortized debt issuance costs	3,938	4,718
STRS JV
Assets
Investments	324,501	284,259
Cash and cash equivalents	17,002	18,960
Interest receivable	1,855	1,404
Other assets	173	673
Total assets	343,531	305,296
Liabilities
Credit facility	182,466	150,634
Note payable to members	123,979	120,000
Interest payable on credit facility	1,060	796
Interest payable on notes to members	3,542	3,069
Unrealized depreciation on foreign currency forward contracts	6	75
Other liabilities	632	483
Total liabilities	311,685	275,057
Members' equity	31,846	30,239
Total liabilities and total net assets	343,531	305,296
Investments, amortized cost	326,219	287,940
Unamortized debt issuance costs	$ 2,178	$ 1,643

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INVESTMENTS - Selected Statement of Operations Information For STRS JV (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Schedule of Investments [Line Items]
Total investment income	$ 25,595	$ 20,000	$ 51,759	$ 40,034
Administrative service fees	170	170	341	341
Total expenses	14,753	11,948	29,963	23,219
Net investment income after excise tax	10,592	7,877	21,296	16,416
Net increase in net assets resulting from operations	3,881	7,349	11,387	13,056
STRS JV
Schedule of Investments [Line Items]
Interest and fee income	9,757	7,216	18,452	13,127
Total investment income	9,757	7,216	18,452	13,127
Interest expense on credit facility	3,671	1,645	6,667	2,885
Interest expense on notes to members	3,542	2,189	6,870	3,981
Administrative service fees	165	165	320	314
Other expenses	151	150	350	385
Total expenses	7,529	4,149	14,207	7,565
Net investment income after excise tax	2,228	3,067	4,245	5,562
Net realized gains (losses) on investments and foreign currency transactions	28	41	87	120
Net change in unrealized appreciation (depreciation) on investments and foreign currency transactions	136	1,640	706	1,592
Net increase in net assets resulting from operations	$ 2,392	$ 4,748	$ 5,038	$ 7,274

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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
FAIR VALUE MEASUREMENTS
Investments	$ 728,352	$ 760,228
First lien secured loans
FAIR VALUE MEASUREMENTS
Investments	592,900	618,267
Second lien secured loans
FAIR VALUE MEASUREMENTS
Investments	17,132	20,634
Subordinated unsecured loans
FAIR VALUE MEASUREMENTS
Investments	167	167
Subordinated Note to STRS JV
FAIR VALUE MEASUREMENTS
Investments	81,472	80,000
Equity (excluding STRS JV)
FAIR VALUE MEASUREMENTS
Investments	15,752	21,000
Equity in STRS JV
FAIR VALUE MEASUREMENTS
Investments	20,929	20,160
Level 2 | Foreign currency forward contracts
FAIR VALUE MEASUREMENTS
Investments	9	3
Level 3
FAIR VALUE MEASUREMENTS
Investments	707,423	740,068
Level 3 | First lien secured loans
FAIR VALUE MEASUREMENTS
Investments	592,900	618,267
Level 3 | Second lien secured loans
FAIR VALUE MEASUREMENTS
Investments	17,132	20,634
Level 3 | Subordinated unsecured loans
FAIR VALUE MEASUREMENTS
Investments	167	167
Level 3 | Subordinated Note to STRS JV
FAIR VALUE MEASUREMENTS
Investments	81,472	80,000
Level 3 | Equity (excluding STRS JV)
FAIR VALUE MEASUREMENTS
Investments	$ 15,752	$ 21,000

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FAIR VALUE MEASUREMENTS - Level 3 Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Fair value measurements
Fair value, beginning of period	$ 728,910	$ 779,595	$ 740,068	$ 803,601
Funding of investments	29,390	66,861	66,729	190,451
Non-cash interest income	1,687	424	3,668	956
Accretion of discount (premium)	969	1,631	2,070	2,976
Proceeds from paydowns and sales	(46,989)	(101,246)	(94,801)	(247,237)
Realized gains (losses)	$ (344)	$ 1,886	$ (439)	$ (16,298)
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Gain (Loss) on Sale of Investments	Gain (Loss) on Sale of Investments	Gain (Loss) on Sale of Investments	Gain (Loss) on Sale of Investments
Net unrealized appreciation (depreciation)	$ (6,200)	$ (4,951)	$ (9,872)	$ 9,751
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Debt and Equity Securities, Unrealized Gain (Loss)	Debt and Equity Securities, Unrealized Gain (Loss)	Debt and Equity Securities, Unrealized Gain (Loss)	Debt and Equity Securities, Unrealized Gain (Loss)
Fair value, end of period	$ 707,423	$ 744,200	$ 707,423	$ 744,200
Change in unrealized appreciation (depreciation) on investments still held	(7,930)	(4,238)	(11,371)	(3,710)
First lien secured loans
Fair value measurements
Fair value, beginning of period	608,477	648,770	618,267	697,232
Funding of investments	27,136	66,851	64,474	169,774
Non-cash interest income	1,687	422	3,668	954
Accretion of discount (premium)	947	1,609	2,027	2,933
Proceeds from paydowns and sales	(40,384)	(99,505)	(88,196)	(245,386)
Conversions	(3,892)		(4,537)	(4,060)
Realized gains (losses)	(5)	145	(100)	(17,039)
Net unrealized appreciation (depreciation)	(1,066)	(3,433)	(2,703)	10,451
Fair value, end of period	592,900	614,859	592,900	614,859
Change in unrealized appreciation (depreciation) on investments still held	(1,986)	(2,719)	(3,638)	(1,983)
Second lien secured loans
Fair value measurements
Fair value, beginning of period	19,773	23,780	20,634	23,650
Non-cash interest income		2		2
Accretion of discount (premium)	22	22	43	43
Realized gains (losses)				(1,024)
Net unrealized appreciation (depreciation)	(2,663)	(1,741)	(3,545)	(608)
Fair value, end of period	17,132	22,063	17,132	22,063
Change in unrealized appreciation (depreciation) on investments still held	(2,663)	(1,741)	(3,545)	(1,634)
Subordinated Notes
Fair value measurements
Fair value, beginning of period	167	167	167	167
Fair value, end of period	167	167	167	167
Subordinated Note to STRS JV
Fair value measurements
Fair value, beginning of period	80,000	80,000	80,000	60,000
Funding of investments	1,472		1,472	20,000
Fair value, end of period	81,472	80,000	81,472	80,000
Equity (excluding STRS JV)
Fair value measurements
Fair value, beginning of period	20,493	26,878	21,000	22,552
Funding of investments	782	10	783	677
Proceeds from paydowns and sales	(6,605)	(1,741)	(6,605)	(1,851)
Conversions	3,892		4,537	4,060
Realized gains (losses)	(339)	1,741	(339)	1,765
Net unrealized appreciation (depreciation)	(2,471)	223	(3,624)	(92)
Fair value, end of period	15,752	27,111	15,752	27,111
Change in unrealized appreciation (depreciation) on investments still held	$ (3,281)	$ 222	$ (4,188)	$ (93)

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FAIR VALUE MEASUREMENTS - Quantitative information (Details) $ in Thousands	Jun. 30, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares
FAIR VALUE MEASUREMENTS
Investments	$ 728,352	$ 760,228
First lien secured loans
FAIR VALUE MEASUREMENTS
Investments	592,900	618,267
Second lien secured loans
FAIR VALUE MEASUREMENTS
Investments	17,132	20,634
Subordinated unsecured loans
FAIR VALUE MEASUREMENTS
Investments	167	167
Subordinated Notes
FAIR VALUE MEASUREMENTS
Investments	167	167
Subordinated Note to STRS JV
FAIR VALUE MEASUREMENTS
Investments	81,472	80,000
Level 3
FAIR VALUE MEASUREMENTS
Investments	707,423	740,068
Level 3 | First lien secured loans
FAIR VALUE MEASUREMENTS
Investments	592,900	618,267
Level 3 | First lien secured loans | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 561,179	$ 536,259
Level 3 | First lien secured loans | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.100	0.100
Level 3 | First lien secured loans | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.216	0.300
Level 3 | First lien secured loans | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input		0.138
Level 3 | First lien secured loans | Recent transaction
FAIR VALUE MEASUREMENTS
Investments	$ 13,343	$ 67,878
Level 3 | First lien secured loans | Recent transaction | Transaction price | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	97.0	83.1
Level 3 | First lien secured loans | Recent transaction | Transaction price | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	97.1	100.0
Level 3 | First lien secured loans | Recent transaction | Transaction price | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	(97.0)	95.0
Level 3 | First lien secured loans | Expected repayment
FAIR VALUE MEASUREMENTS
Investments	$ 15,982	$ 14,130
Level 3 | First lien secured loans | Expected repayment | Transaction price | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	100.0	100.0
Level 3 | First lien secured loans | Expected repayment | Transaction price | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	100.0	101.0
Level 3 | First lien secured loans | Expected repayment | Transaction price | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	(100.0)	100.5
Level 3 | First lien secured loans | Enterprise value analysis
FAIR VALUE MEASUREMENTS
Investments	$ 2,396
Level 3 | First lien secured loans | Enterprise value analysis | EBITDA Multiple Range | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	6.9
Level 3 | First lien secured loans | Enterprise value analysis | EBITDA Multiple Range | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	6.9
Level 3 | First lien secured loans | Enterprise value analysis | EBITDA Multiple Range | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(6.9)
Level 3 | Second lien secured loans
FAIR VALUE MEASUREMENTS
Investments	$ 17,132	$ 20,634
Level 3 | Second lien secured loans | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 17,132	$ 20,634
Level 3 | Second lien secured loans | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.129	0.132
Level 3 | Second lien secured loans | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.350	0.250
Level 3 | Second lien secured loans | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(0.196)	0.189
Level 3 | Subordinated unsecured loans
FAIR VALUE MEASUREMENTS
Investments	$ 167	$ 167
Level 3 | Subordinated unsecured loans | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 167	$ 167
Level 3 | Subordinated unsecured loans | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.041	0.040
Level 3 | Subordinated unsecured loans | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.041	0.040
Level 3 | Subordinated unsecured loans | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(0.041)	0.040
Level 3 | Subordinated Note to STRS JV
FAIR VALUE MEASUREMENTS
Investments	$ 81,472	$ 80,000
Level 3 | Subordinated Note to STRS JV | Enterprise value analysis
FAIR VALUE MEASUREMENTS
Investments	81,472	80,000
Level 3 | Preferred Equity | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 731	$ 714
Level 3 | Preferred Equity | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.210	0.200
Level 3 | Preferred Equity | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.257	0.225
Level 3 | Preferred Equity | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(0.210)	0.200
Level 3 | Preferred Equity | Recent transaction
FAIR VALUE MEASUREMENTS
Investments		$ 200
Level 3 | Preferred Equity | Recent transaction | Transaction price | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares		1.0
Level 3 | Preferred Equity | Recent transaction | Transaction price | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input		1.0
Level 3 | Preferred Equity | Recent transaction | Transaction price | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares		1.0
Level 3 | Preferred Equity | Enterprise value analysis | EBITDA Multiple Range
FAIR VALUE MEASUREMENTS
Investments	$ 1,693	$ 194
Level 3 | Preferred Equity | Enterprise value analysis | EBITDA Multiple Range | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	6.0	8.0
Level 3 | Preferred Equity | Enterprise value analysis | EBITDA Multiple Range | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	10.7	9.5
Level 3 | Preferred Equity | Enterprise value analysis | EBITDA Multiple Range | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(7.0)	8.6
Level 3 | Preferred Equity | Enterprise value analysis | Revenue Multiple
FAIR VALUE MEASUREMENTS
Investments		$ 926
Level 3 | Preferred Equity | Enterprise value analysis | Revenue Multiple | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input		0.5
Level 3 | Preferred Equity | Enterprise value analysis | Revenue Multiple | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input		0.5
Level 3 | Preferred Equity | Enterprise value analysis | Revenue Multiple | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input		0.5
Level 3 | Common Equity | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 3,262	$ 9,990
Level 3 | Common Equity | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.174	0.156
Level 3 | Common Equity | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.257	0.259
Level 3 | Common Equity | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(0.217)	0.224
Level 3 | Common Equity | Recent transaction
FAIR VALUE MEASUREMENTS
Investments	$ 647	$ 400
Level 3 | Common Equity | Recent transaction | Transaction price | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	1.0	1.0
Level 3 | Common Equity | Recent transaction | Transaction price | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	1,000.0	1.0
Level 3 | Common Equity | Recent transaction | Transaction price | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input | $ / shares	(485.5)	1.0
Level 3 | Common Equity | Enterprise value analysis
FAIR VALUE MEASUREMENTS
Investments	$ 6,022	$ 4,735
Level 3 | Common Equity | Enterprise value analysis | EBITDA Multiple Range | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	6.0	5.0
Level 3 | Common Equity | Enterprise value analysis | EBITDA Multiple Range | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	11.2	11.8
Level 3 | Common Equity | Enterprise value analysis | EBITDA Multiple Range | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(7.9)	8.3
Level 3 | Warrant | Discounted cash flows
FAIR VALUE MEASUREMENTS
Investments	$ 3,397	$ 3,841
Level 3 | Warrant | Discounted cash flows | Discount rate | Minimum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.302	0.259
Level 3 | Warrant | Discounted cash flows | Discount rate | Maximum
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	0.302	0.272
Level 3 | Warrant | Discounted cash flows | Discount rate | Weighted average
FAIR VALUE MEASUREMENTS
Investments Owned, Measurement Input	(0.302)	0.272

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FAIR VALUE MEASUREMENTS - Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 06, 2021	Nov. 24, 2021	Dec. 04, 2020	Oct. 20, 2020	Jul. 13, 2018
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	$ 428,649	$ 445,145
Fair Value, Debt	$ 411,706	$ 428,760
6.000% 2023 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	6.00%	6.00%		6.00%			6.00%
5.375% 2025 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	5.375%	5.375%		5.375%		5.375%
5.375% 2026 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	5.375%	5.375%		5.375%	5.375%
4.000% 2026 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	4.00%	4.00%		4.00%
5.625% 2027 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	5.625%	5.625%		5.625%	5.625%
4.250% 2028 Notes
FAIR VALUE MEASUREMENTS
Interest rate (as a percent)	4.25%	4.25%	4.25%	4.25%
Level 3 | JPM Credit Facility
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	$ 238,649	$ 255,145
Fair Value, Debt	236,705	252,799
Level 3 | 6.000% 2023 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	30,000	30,000
Fair Value, Debt	29,931	30,382
Level 3 | 5.375% 2025 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	40,000	40,000
Fair Value, Debt	37,169	37,474
Level 3 | 5.375% 2026 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	10,000	10,000
Fair Value, Debt	9,133	9,149
Level 3 | 4.000% 2026 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	75,000	75,000
Fair Value, Debt	68,015	67,912
Level 3 | 5.625% 2027 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	10,000	10,000
Fair Value, Debt	9,034	9,063
Level 3 | 4.250% 2028 Notes
FAIR VALUE MEASUREMENTS
Principal Amount Outstanding	25,000	25,000
Fair Value, Debt	$ 21,719	$ 21,981

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BORROWINGS - Outstanding and Available (Details) - USD ($) $ in Thousands			6 Months Ended	12 Months Ended
	Feb. 04, 2022	Jul. 15, 2021	Jun. 30, 2023	Dec. 31, 2022	Mar. 30, 2022	Mar. 29, 2022	Feb. 03, 2022	Dec. 06, 2021	Nov. 24, 2021	Dec. 04, 2020	Oct. 20, 2020	Jul. 13, 2018
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 428,649	$ 445,145
Amortized Cost, credit facility			424,711	440,427
Available			96,351	79,855
JPM Credit Facility
Debt Instrument [Line Items]
Principal Amount Outstanding			238,649	255,145
Amortized Cost, credit facility			236,705	252,799
Available	$ 310,000		$ 96,351	$ 79,855	$ 335,000	$ 310,000	$ 285,000
Variable interest rate (as a percent)		2.35%	2.35%
JPM Credit Facility | LIBOR
Debt Instrument [Line Items]
Variable interest rate (as a percent)			2.50%	2.35%
JPM Credit Facility | SOFR
Debt Instrument [Line Items]
Variable interest rate (as a percent)	2.50%		2.50%	2.50%
6.000% 2023 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 30,000	$ 30,000								$ 30,000
Amortized Cost, credit facility			$ 29,981	$ 29,893
Variable interest rate (as a percent)			6.00%	6.00%
Interest rate (as a percent)			6.00%	6.00%					6.00%			6.00%
5.375% 2025 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 40,000	$ 40,000							$ 40,000
Amortized Cost, credit facility			$ 39,695	$ 39,629
Variable interest rate (as a percent)			5.375%	5.375%
Interest rate (as a percent)			5.375%	5.375%					5.375%		5.375%
5.375% 2026 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 10,000	$ 10,000						$ 10,000
Amortized Cost, credit facility			$ 9,900	$ 9,885
Variable interest rate (as a percent)			5.375%	5.375%
Interest rate (as a percent)			5.375%	5.375%					5.375%	5.375%
4.000% 2026 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 75,000	$ 75,000					$ 75,000
Amortized Cost, credit facility			$ 73,822	$ 73,652
Variable interest rate (as a percent)			4.00%	4.00%
Interest rate (as a percent)			4.00%	4.00%					4.00%
5.625% 2027 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 10,000	$ 10,000						$ 10,000
Amortized Cost, credit facility			$ 9,889	$ 9,876
Variable interest rate (as a percent)			5.625%	5.625%
Interest rate (as a percent)			5.625%	5.625%					5.625%	5.625%
4.250% 2028 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding			$ 25,000	$ 25,000				$ 25,000
Amortized Cost, credit facility			$ 24,719	$ 24,693
Variable interest rate (as a percent)			4.25%	4.25%
Interest rate (as a percent)			4.25%	4.25%				4.25%	4.25%

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BORROWINGS - Narratives (Details) $ in Thousands								3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 12, 2023	Feb. 04, 2022 USD ($)	Jan. 04, 2022 USD ($)	Oct. 04, 2021 USD ($)	Jul. 15, 2021	Aug. 02, 2018	Aug. 01, 2018	Jun. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 30, 2022 USD ($)	Mar. 29, 2022 USD ($)	Feb. 03, 2022 USD ($)
Debt Instrument [Line Items]
Percentage of asset coverage for borrowed amounts									175.90%	174.70%
Available								$ 96,351	$ 96,351	$ 79,855
Principal Amount Outstanding								428,649	428,649	445,145
Principal Amount Outstanding								$ 428,649	$ 428,649	445,145
Minimum
Debt Instrument [Line Items]
Maximum debt-to-equity ratio								1.0	1.0
Debt outstanding for each dollar of equity									$ 1
Value of equity for Each Dollar of Debt									$ 1
Asset coverage ratio						150.00%	150.00%
Maximum
Debt Instrument [Line Items]
Maximum debt-to-equity ratio								2.0	2.0
Debt outstanding for each dollar of equity									$ 1
Value of equity for Each Dollar of Debt									$ 2
Asset coverage ratio							200.00%
JPM Credit Facility
Debt Instrument [Line Items]
Increase in credit facility size		$ 25,000
Maximum borrowing limit		335,000								285,000
Variable interest rate (as a percent)					2.35%				2.35%
Available		310,000						$ 96,351	$ 96,351	79,855	$ 335,000	$ 310,000	$ 285,000
Permanent increase in availability		25,000
Temporary Increase in line of credit facility		25,000	$ 335,000	$ 335,000
Commitment Fee (as a percent)									0.75%
Minimum borrowing capacity									$ 234,500
Minimum funding amount contingent		$ 217,000									234,500	$ 217,000	$ 200,000
Fair value of securities pledged as collateral								599,952	599,952
Principal Amount Outstanding								238,649	238,649	255,145
Amount undrawn under the credit facility								96,351	96,351	79,855
Weighted average outstanding borrowings								$ 236,661	$ 251,195	$ 264,411
Weighted average interest rate										4.04%
Effective interest rate (as a percent)								7.74%	7.74%	7.11%
Interest rate over time								7.52%	7.34%
JPM Credit Facility | Maximum
Debt Instrument [Line Items]
Maximum borrowing limit											$ 375,000
JPM Credit Facility | LIBOR
Debt Instrument [Line Items]
Variable interest rate (as a percent)									2.50%	2.35%
JPM Credit Facility | SOFR
Debt Instrument [Line Items]
Variable interest rate (as a percent)		2.50%							2.50%	2.50%
JPM Credit Facility | Base Rate
Debt Instrument [Line Items]
Variable interest rate (as a percent)	2.50%

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BORROWINGS - Notes (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022	Dec. 06, 2021	Nov. 24, 2021	Dec. 04, 2020	Oct. 20, 2020	Jul. 13, 2018
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 428,649	$ 445,145
6.000% 2023 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 30,000	$ 30,000					$ 30,000
Interest rate (as a percent)	6.00%	6.00%		6.00%			6.00%
6.000% 2023 Notes | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)							6.50%
5.375% 2025 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 40,000	$ 40,000				$ 40,000
Interest rate (as a percent)	5.375%	5.375%		5.375%		5.375%
5.375% 2025 Notes | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)						6.375%
5.375% 2026 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 10,000	$ 10,000			$ 10,000
Interest rate (as a percent)	5.375%	5.375%		5.375%	5.375%
5.375% 2026 Notes | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)					6.375%
4.000% 2026 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 75,000	$ 75,000		$ 75,000
Interest rate (as a percent)	4.00%	4.00%		4.00%
5.625% 2027 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 10,000	$ 10,000			$ 10,000
Interest rate (as a percent)	5.625%	5.625%		5.625%	5.625%
5.625% 2027 Notes | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)					6.625%
4.250% 2028 Notes
Debt Instrument [Line Items]
Principal Amount Outstanding	$ 25,000	$ 25,000	$ 25,000
Interest rate (as a percent)	4.25%	4.25%	4.25%	4.25%
4.250% 2028 Notes | Maximum
Debt Instrument [Line Items]
Interest rate (as a percent)			5.25%

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RELATED PARTY TRANSACTIONS - (Details) - Investment Advisory Agreement	6 Months Ended
	Jun. 30, 2023 item
RELATED PARTY TRANSACTIONS
Agreement may be terminated by either party without penalty upon days	60 days
Percentage of base management fee on gross assets	2.00%
Percentage of base management fee on gross assets if value exceeded total assets	1.25%
Threshold percentage for calculation of base management fee	200.00%
Number of calendar quarters	2

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RELATED PARTY TRANSACTIONS - Base management fee (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
RELATED PARTY TRANSACTIONS
Base management fee	$ 3,705	$ 3,908	$ 7,416	$ 7,859
Total management fees	3,705	$ 3,908	7,416	$ 7,859
Management fees payable	$ 3,705		$ 3,705		$ 3,860

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RELATED PARTY TRANSACTIONS - Performance-based incentive fee (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) component	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
RELATED PARTY TRANSACTIONS
Number of components | component			2
Income incentive fee	$ 2,648	$ 1,943	$ 5,324	$ 3,935
Capital gains incentive fee		(106)		(671)
Total performance-based incentive fees	2,648	$ 1,837	5,324	$ 3,264
Incentive fee payables	5,115		5,115		$ 5,618
Capital Gains Incentive Fees under GAAP
RELATED PARTY TRANSACTIONS
Incentive fee payables	0		$ 0		$ 0
Investment adviser
RELATED PARTY TRANSACTIONS
Number of components | component			2
Incentive fee payables	$ 0		$ 0

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RELATED PARTY TRANSACTIONS - Administration , Coinvestment and STRS JV (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
RELATED PARTY TRANSACTIONS
Administrative service fees	$ 170	$ 170	$ 341	$ 341
Net realized gains (losses)			$ (3)	(15,773)
Administration Agreement
RELATED PARTY TRANSACTIONS
Agreement may be terminated by either party without penalty upon days			60 days
Administrative service fees	170	170	$ 341	341
Administration Agreement | White Horse Advisers
RELATED PARTY TRANSACTIONS
Other liabilities	4,608,177		4,608,177		$ 4,415,678
Administration Agreement | STRS JV
RELATED PARTY TRANSACTIONS
Proceeds from sale of investments	12,555	17,754	38,473	100,415
Net realized gains (losses)	$ (2)	$ (68)	$ (98)	$ (65)

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COMMITMENTS AND CONTINGENCIES - Unfunded commitments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Unfunded commitments
Total Unfunded Commitments	$ 38,847	$ 56,190
Revolving Loan Commitments
Unfunded commitments
Total Unfunded Commitments	13,377	15,593
Revolving Loan Commitments | ABB/Con-cise Optical Group LLC (d/b/a ABB Optical Group, LLC)
Unfunded commitments
Total Unfunded Commitments		113
Revolving Loan Commitments | Bridgepoint Healthcare, LLC
Unfunded commitments
Total Unfunded Commitments	1,588	1,588
Revolving Loan Commitments | Claridge Products and Equipment, LLC
Unfunded commitments
Total Unfunded Commitments	351	204
Revolving Loan Commitments | Coastal Television Broadcasting Group LLC
Unfunded commitments
Total Unfunded Commitments	309	309
Revolving Loan Commitments | EducationDynamics, LLC
Unfunded commitments
Total Unfunded Commitments	1,199	1,199
Revolving Loan Commitments | Gulf Winds International Acquisition, LLC (d/b/a Gulf Winds International, Inc.)
Unfunded commitments
Total Unfunded Commitments	647	647
Revolving Loan Commitments | HC Salon Holdings, Inc. (d/b/a Hair Cuttery)
Unfunded commitments
Total Unfunded Commitments	700	700
Revolving Loan Commitments | Industrial Specialty Services USA LLC
Unfunded commitments
Total Unfunded Commitments		508
Revolving Loan Commitments | Inspired Beauty Brands, Inc.
Unfunded commitments
Total Unfunded Commitments	442	265
Revolving Loan Commitments | Leviathan Intermediate Holdco, LLC (d/b/a Unleashed Brands Group)
Unfunded commitments
Total Unfunded Commitments	494	494
Revolving Loan Commitments | Motivational Marketing, LLC (d/b/a Motivational Fulfillment)
Unfunded commitments
Total Unfunded Commitments		1,024
Revolving Loan Commitments | MSI Information Services, Inc.
Unfunded commitments
Total Unfunded Commitments	675	1,050
Revolving Loan Commitments | M&M OpCo. LLC (d/b/a Escalent, Inc.)
Unfunded commitments
Total Unfunded Commitments	238
Revolving Loan Commitments | Naviga Inc. (f/k/a Newscycle Solutions, Inc.)
Unfunded commitments
Total Unfunded Commitments	34
Revolving Loan Commitments | PFB Holdco, Inc. (d/b/a PFB Corporation)
Unfunded commitments
Total Unfunded Commitments	919	899
Revolving Loan Commitments | PFB Holdco, Inc. (d/b/a PFB Corporation)
Unfunded commitments
Total Unfunded Commitments	296	296
Revolving Loan Commitments | PG Dental New Jersey Parent, LLC
Unfunded commitments
Total Unfunded Commitments		352
Revolving Loan Commitments | Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)
Unfunded commitments
Total Unfunded Commitments	2,089	2,299
Revolving Loan Commitments | Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)
Unfunded commitments
Total Unfunded Commitments	387	603
Revolving Loan Commitments | Sleep OpCo LLC (d/b/a Brooklyn Bedding LLC)
Unfunded commitments
Total Unfunded Commitments	1,814	2,646
Revolving Loan Commitments | Telestream Holdings Corporation
Unfunded commitments
Total Unfunded Commitments	397	397
Revolving Loan Commitments | The Kyjen Company, LLC (d/b/a Outward Hound)
Unfunded commitments
Total Unfunded Commitments	798
Delayed Draw Loan Commitments
Unfunded commitments
Total Unfunded Commitments	25,470	40,597
Delayed Draw Loan Commitments | Bridgepoint Healthcare, LLC
Unfunded commitments
Total Unfunded Commitments	794	794
Delayed Draw Loan Commitments | Camp Facility Services Holdings, LLC (d/b/a Camp Construction Services, Inc.)
Unfunded commitments
Total Unfunded Commitments		4,063
Delayed Draw Loan Commitments | EducationDynamics, LLC
Unfunded commitments
Total Unfunded Commitments	1,709	1,709
Delayed Draw Loan Commitments | HRG Management, LLC (d/b/a HomeRiver Group, LLC)
Unfunded commitments
Total Unfunded Commitments		2,167
Delayed Draw Loan Commitments | JZ Capital Partners Ltd.
Unfunded commitments
Total Unfunded Commitments	5,714	5,714
Delayed Draw Loan Commitments | Power Service Group CR Acquisition Inc. (d/b/a Power Plant Services)
Unfunded commitments
Total Unfunded Commitments		2,090
Delayed Draw Loan Commitments | Salon Republic Holdings, LLC (d/b/a Salon Republic, LLC)
Unfunded commitments
Total Unfunded Commitments	1,683	2,097
Delayed Draw Loan Commitments | Solar Holdings Bidco Limited
Unfunded commitments
Total Unfunded Commitments		4,008
Delayed Draw Loan Commitments | StoicLane MidCo, LLC (d/b/a StoicLane Inc.)
Unfunded commitments
Total Unfunded Commitments	6,237	8,217
Delayed Draw Loan Commitments | Telestream Holdings Corporation
Unfunded commitments
Total Unfunded Commitments		346
Delayed Draw Loan Commitments | True Blue Car Wash, LLC
Unfunded commitments
Total Unfunded Commitments		59
Delayed Draw Loan Commitments | US Methanol Midco LLC (d/b/a US Methanol LLC)
Unfunded commitments
Total Unfunded Commitments	$ 9,333	$ 9,333

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COMMITMENTS AND CONTINGENCIES - Additional information (Details) - STRS JV - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Unfunded commitments
Commitments to fund equity interests	$ 23,000	$ 20,000
Commitments to fund subordinated notes	92,000	$ 80,000
Unfunded equity interests	2,632
Unfunded subordinated notes	$ 10,528

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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 15, 2021	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2022
Subsidiary, Sale of Stock [Line Items]
Proceeds, before offering expenses			$ 480	$ 1,225
Net proceeds of commissions to sales agent				$ 124
ATM Program
Subsidiary, Sale of Stock [Line Items]
Aggregate offering amount			$ (72)
ATM Program | B. Riley Securities, Inc. | Maximum
Subsidiary, Sale of Stock [Line Items]
Aggregate offering amount		$ 35,000
ATM Program | Raymond James & Associates, Inc.
Subsidiary, Sale of Stock [Line Items]
Shares sold in the program	276,300
Weighted-average price	$ 15.77
Proceeds, before offering expenses	$ 4,359
Net proceeds of commissions to sales agent	4,272
ATM Program | Raymond James & Associates, Inc. | Maximum
Subsidiary, Sale of Stock [Line Items]
Aggregate offering amount	$ 35,000

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STOCKHOLDERS' EQUITY - Schedule of Stockholder's Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Subsidiary, Sale of Stock [Line Items]
Total Shares Issued	0	31,675	0	80,421
Proceeds, before offering expenses		$ 480		$ 1,225
Average Price Per Share		$ 15.15		$ 15.23
ATM Program
Subsidiary, Sale of Stock [Line Items]
Total Shares Issued				16,678
DRIP
Subsidiary, Sale of Stock [Line Items]
Total Shares Issued		31,675		63,743

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FINANCIAL HIGHLIGHTS (Details) - USD ($)	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
Per share data:
Net asset value, beginning of period	$ 14.30	$ 15.10
Investment operations:
Net investment income	0.92	0.71
Net realized and unrealized gains(losses) on investments and foreign currency transactions	(0.43)	(0.15)
Net increase in net assets resulting from operations	0.49	0.56
Distributions declared from net investment income	(0.79)	(0.71)
Net asset value, end of period	$ 14.00	$ 14.95
Total annualized return based on market value	(3.40%)	(30.70%)
Total annualized return based on net asset value	6.89%	7.48%
Net assets, end of period	$ 325,296	$ 347,425
Per share market value at end of period	$ 12.83	$ 13.14
Shares outstanding end of period	23,243,088	23,243,088
Ratios/Supplemental Data:
Ratio of expenses before incentive fees to average net assets	15.22%	11.67%
Ratio of incentive fees to average net assets	3.22%	1.87%
Ratio of total expenses to average net assets	18.44%	13.54%
Ratio of net investment income to average net assets	12.89%	9.41%
Portfolio turnover ratio	8.75%	21.43%

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CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
CHANGE IN NET ASSETS RESULTING FROM OPERATIONS PER COMMON SHARE
Net increase in net assets resulting from operations	$ 3,881	$ 7,349	$ 11,387	$ 13,056
Weighted average shares outstanding, basic	23,243,088	23,240,651	23,243,088	23,215,792
Weighted average shares outstanding, diluted	23,243,088	23,240,651	23,243,088	23,215,792
Basic per share net increase in net assets resulting from operations	$ 0.17	$ 0.32	$ 0.49	$ 0.56
Diluted per share net increase in net assets resulting from operations	$ 0.17	$ 0.32	$ 0.49	$ 0.56

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SUBSEQUENT EVENTS - (Details) - USD ($) $ in Thousands		6 Months Ended
	Aug. 07, 2023	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Nov. 24, 2021	Jul. 13, 2018
Subsequent Event [Line Items]
Repayments of debt		$ 62,902	$ 138,915
6.000% 2023 Notes
Subsequent Event [Line Items]
Interest rate (as a percent)		6.00%		6.00%	6.00%	6.00%
Subsequent Event | 6.000% 2023 Notes
Subsequent Event [Line Items]
Interest rate (as a percent)	6.00%
Repayments of debt	$ 30,000

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 3,881	$ 7,349	$ 11,387	$ 13,056

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Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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N-2 - $ / shares

6 Months Ended

Jun. 30, 2023

Dec. 31, 2022

Jun. 30, 2022

Dec. 31, 2021

Cover [Abstract]

Entity Central Index Key

0001552198

Amendment Flag

false

Securities Act File Number

814-00967

Document Type

10-Q

Entity Registrant Name

WHITEHORSE FINANCE, INC

Entity Address, Address Line One

1450 Brickell Avenue

Entity Address, Address Line Two

31st Floor

Entity Address, City or Town

Miami

Entity Address, State or Province

FL

Entity Address, Postal Zip Code

33131

City Area Code

305

Local Phone Number

381-6999

Entity Emerging Growth Company

false

General Description of Registrant [Abstract]

Investment Objectives and Practices [Text Block]

Our investment activities are managed by WhiteHorse Advisers and are supervised by our board of directors, a majority of whom are independent of us, WhiteHorse Advisers and its affiliates. Under the Investment Advisory Agreement, we have agreed to pay WhiteHorse Advisers an annual base management fee based on our average consolidated gross assets as well as an incentive fee based on our investment performance. Under our Administration Agreement, we have agreed to reimburse WhiteHorse Administration for our allocable portion (subject to the review and approval of our independent directors) of overhead and other expenses incurred by WhiteHorse Administration in performing its obligations under the Administration Agreement.

Risk Factors [Table Text Block]

Item 1A. Risk Factors

In addition to the below risk factor and other information set forth in this report, you should carefully consider the “Risk Factors” discussed in our most recent Annual Report on Form 10-K and our most recent Quarterly Report on Form 10-Q, which could materially affect our business, financial condition and/or operating results. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially affect our business, financial condition and/or operating results.

Our business and the businesses of our portfolio companies are dependent on bank relationships and recent concerns associated with the banking system may adversely impact us.

The financial markets have recently experienced volatility in connection with concerns that some banks, especially small and regional banks, may have significant investment-related losses that might make it difficult to fund demands to withdraw deposits and other liquidity needs. Although the federal government has announced measures to assist certain banks and protect depositors, some banks have already been impacted and others may be adversely impacted, by such volatility. Our business and the businesses of our portfolio companies are dependent on bank relationships, and we are proactively monitoring the financial health of these relationships. Continued strain on the banking system may adversely impact the business, financial condition and results of operations of us and our portfolio companies

We hold our cash and cash equivalents that we use to meet our working capital needs in deposit accounts at multiple financial institutions. The balance held in these accounts may exceed the Federal Deposit Insurance Corporation standard deposit insurance limit or similar government guarantee schemes. If a financial institution in which we hold such funds fails or is subject to significant adverse conditions in the financial or credit markets, we could be subject to a risk of loss of all or a portion of such uninsured funds or be subject to a delay in accessing all or a portion of such uninsured funds. Any such loss or lack of access to these funds could adversely impact our short-term liquidity and ability to meet our obligations. We also maintain investment accounts with other financial institutions in which we hold our investments and, if access to the funds we use for working capital is impaired, we may not be able to sell investments or transfer funds from our investment accounts to new accounts on a timely basis sufficient to meet our working capital needs.

Share Price

$ 12.83

$ 13.14

NAV Per Share

$ 14.00

$ 14.30

$ 14.95

$ 15.10