10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 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 SEPTEMBER 30, 2021

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: 001-14788

Blackstone Mortgage Trust, Inc.

(Exact name of Registrant as specified in its charter)

Maryland	94-6181186
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

345 Park Avenue, 24th Floor

New York, New York 10154

(Address of principal executive offices)(Zip Code)

(212) 655-0220

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

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

Title of each class	Trading symbol(s)	Name of each exchange on which registered
Class A common stock, par value $0.01 per share	BXMT	New York Stock Exchange

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 the 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 Exchange Act).    Yes  ☐    No  ☒

The number of the registrant’s shares of class A common stock, par value $0.01 per share, outstanding as of October 20, 2021 was 157,080,951.

TABLE OF CONTENTS

PART I.	FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS		3
	Consolidated Financial Statements (Unaudited):
	Consolidated Balance Sheets as of September 30, 2021 and December 31, 2020		3
	Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2021 and 2020	4
	Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2021 and 2020	5
	Consolidated Statements of Changes in Equity for the Three Months Ended March 31, 2021 and 2020, June 30, 2021 and 2020, and September 30, 2021 and 2020	6
	Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2021 and 2020		8
	Notes to Consolidated Financial Statements	10
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	51
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	80
ITEM 4.	CONTROLS AND PROCEDURES		83
PART II.	OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS		84
ITEM 1A.	RISK FACTORS		84
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	84
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES		84
ITEM 4.	MINE SAFETY DISCLOSURES		84
ITEM 5.	OTHER INFORMATION		84
ITEM 6.	EXHIBITS		85
SIGNATURES			86

TABLE OF CONTENTS

Website Disclosure

We use our website (www.blackstonemortgagetrust.com) as a channel of distribution of company information. The information we post through this channel may be deemed material. Accordingly, investors should monitor this channel, in addition to following our press releases, Securities and Exchange Commission, or SEC, filings and public conference calls, and webcasts. In addition, you may automatically receive email alerts and other information about Blackstone Mortgage Trust when you enroll your email address by visiting the “Contact Us & E-mail Alerts” section of our website at http://ir.blackstonemortgagetrust.com. The contents of our website and any alerts are not, however, a part of this report.

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Blackstone Mortgage Trust, Inc.

Consolidated Balance Sheets (Unaudited)

(in thousands, except share data)

	September 30,			December 31,
	2021			2020
Assets
Cash and cash equivalents	$	211,180		$	289,970
Loans receivable		20,406,466			16,572,715
Current expected credit loss reserve		(130,388	)		(173,549	)
Loans receivable, net		20,276,078			16,399,166
Other assets		218,614			269,819
Total Assets	$	20,705,872		$	16,958,955
Liabilities and Equity
Secured debt, net	$	11,170,330		$	7,880,536
Securitized debt obligations, net		2,836,049			2,922,499
Asset-specific debt, net		320,895			391,269
Term loans, net		1,329,637			1,041,704
Convertible notes, net		618,985			616,389
Other liabilities		159,424			202,327
Total Liabilities		16,435,320			13,054,724
Commitments and contingencies		—			—
Equity
Class A common stock, $0.01 par value, 400,000,000 shares authorized, 157,015,689 and 146,780,031 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively		1,570			1,468
Additional paid-in capital		5,039,384			4,702,713
Accumulated other comprehensive income		9,874			11,170
Accumulated deficit		(814,278	)		(829,284	)
Total Blackstone Mortgage Trust, Inc. stockholders’ equity		4,236,550			3,886,067
Non-controlling interests		34,002			18,164
Total Equity		4,270,552			3,904,231
Total Liabilities and Equity	$	20,705,872		$	16,958,955

Note: The consolidated balance sheets as of September 30, 2021 and December 31, 2020 include assets of consolidated variable interest entities, or VIEs, that can only be used to settle obligations of each respective VIE, and liabilities of consolidated VIEs for which creditors do not have recourse to Blackstone Mortgage Trust, Inc. As of September 30, 2021 and December 31, 2020, assets of the consolidated VIEs totaled $3.5 billion and $3.6 billion, respectively, and liabilities of the consolidated VIEs totaled $2.8 billion and $2.9 billion, respectively. Refer to Note 16 for additional discussion of the VIEs.

See accompanying notes to consolidated financial statements.

3

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Operations (Unaudited)

(in thousands, except share and per share data)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Income from loans and other investments
Interest and related income	$	200,114		$	193,939		$	583,941		$	590,797
Less: Interest and related expenses		82,690			78,978			243,413			268,070
Income from loans and other investments, net		117,424			114,961			340,528			322,727
Other expenses
Management and incentive fees		19,342			18,985			60,094			58,758
General and administrative expenses		10,841			11,242			32,108			34,320
Total other expenses		30,183			30,227			92,202			93,078
(Increase) decrease in current expected credit loss reserve		(2,767	)		6,055			49,432			(173,466	)
Income before income taxes		84,474			90,789			297,758			56,183
Income tax provision		70			20			346			192
Net income		84,404			90,769			297,412			55,991
Net income attributable to non-controlling interests		(647	)		(909	)		(2,158	)		(1,937	)
Net income attributable to Blackstone Mortgage Trust, Inc.	$	83,757		$	89,860		$	295,254		$	54,054
Net income per share of common stock basic and diluted	$	0.56		$	0.61		$	2.00		$	0.39
Weighted-average shares of common stock outstanding, basic and diluted		149,214,819			146,484,651			147,971,737			140,157,620

See accompanying notes to consolidated financial statements.

4

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Comprehensive Income (Unaudited)

(in thousands)

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Net income	$	84,404		$	90,769		$	297,412		$	55,991
Other comprehensive income
Unrealized (loss) gain on foreign currency translation		(46,952	)		62,656			(66,356	)		14,488
Realized and unrealized gain (loss) on derivative financial instruments		46,083			(61,936	)		65,059			11,390
Other comprehensive (loss) income		(869	)		720			(1,297	)		25,878
Comprehensive income		83,535			91,489			296,115			81,869
Comprehensive income attributable to non-controlling interests		(647	)		(909	)		(2,158	)		(1,937	)
Comprehensive income attributable to Blackstone Mortgage Trust, Inc.	$	82,888		$	90,580		$	293,957		$	79,932

See accompanying notes to consolidated financial statements.

5

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Changes in Equity (Unaudited)

(in thousands)

	Blackstone Mortgage Trust, Inc.
	Class A		Additional		Accumulated Other
	Common		Paid-In		Comprehensive			Accumulated			Stockholders’			Non-controlling			Total
	Stock		Capital		Income			Deficit			Equity			Interests			Equity
Balance at December 31, 2020	$	1,468	$	4,702,713	$	11,170		$	(829,284	)	$	3,886,067		$	18,164		$	3,904,231
Shares of class A common stock issued, net		2		—		—			—			2			—			2
Restricted class A common stock earned		—		7,958		—			—			7,958			—			7,958
Dividends reinvested		—		204		—			—			204			—			204
Deferred directors’ compensation		—		125		—			—			125			—			125
Other comprehensive income		—		—		114			—			114			—			114
Net income		—		—		—			79,902			79,902			638			80,540
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(91,349	)		(91,349	)		—			(91,349	)
Contributions from non-controlling interests		—		—		—			—			—			13,448			13,448
Distributions to non-controlling interests		—		—		—			—			—			(11,180	)		(11,180	)
Balance at March 31, 2021	$	1,470	$	4,711,000	$	11,284		$	(840,731	)	$	3,883,023		$	21,070		$	3,904,093
Restricted class A common stock earned		—		7,895		—			—			7,895			—			7,895
Dividends reinvested		—		211		—			—			211			—			211
Deferred directors’ compensation		—		125		—			—			125			—			125
Other comprehensive loss		—		—		(541	)		—			(541	)		—			(541	)
Net income		—		—		—			131,595			131,595			873			132,468
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(91,347	)		(91,347	)		—			(91,347	)
Contributions from non-controlling interests		—		—		—			—			—			14,745			14,745
Distributions to non-controlling interests		—		—		—			—			—			(10,694	)		(10,694	)
Balance at June 30, 2021	$	1,470	$	4,719,231	$	10,743		$	(800,483	)	$	3,930,961		$	25,994		$	3,956,955
Shares of class A common stock issued, net		100		311,855		—			—			311,955			—			311,955
Restricted class A common stock earned		—		7,907		—			—			7,907			—			7,907
Dividends reinvested		—		218		—			—			218			—			218
Deferred directors’ compensation		—		173		—			—			173			—			173
Other comprehensive loss		—		—		(869	)		—			(869	)		—			(869	)
Net income		—		—		—			83,757			83,757			647			84,404
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(97,552	)		(97,552	)		—			(97,552	)
Contributions from non-controlling interests		—		—		—			—			—			19,068			19,068
Distributions to non-controlling interests		—		—		—			—			—			(11,707	)		(11,707	)
Balance at September 30, 2021	$	1,570	$	5,039,384	$	9,874		$	(814,278	)	$	4,236,550		$	34,002		$	4,270,552

See accompanying notes to consolidated financial statements.

6

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Changes in Equity (Unaudited)

(in thousands)

	Blackstone Mortgage Trust, Inc.
	Class A		Additional		Accumulated Other
	Common		Paid-In		Comprehensive			Accumulated			Stockholders’			Non-controlling			Total
	Stock		Capital		(Loss) Income			Deficit			Equity			Interests			Equity
Balance at December 31, 2019	$	1,350	$	4,370,014	$	(16,233	)	$	(592,548	)	$	3,762,583		$	22,098		$	3,784,681
Adoption of ASU 2016-13, see Note 2		—		—		—			(17,565	)		(17,565	)		(85	)		(17,650	)
Shares of class A common stock issued, net		4		—		—			—			4			—			4
Restricted class A common stock earned		—		8,550		—			—			8,550			—			8,550
Dividends reinvested		—		162		—			12			174			—			174
Deferred directors’ compensation		—		125		—			—			125			—			125
Other comprehensive income		—		—		34,481			—			34,481			—			34,481
Net loss		—		—		—			(53,350	)		(53,350	)		67			(53,283	)
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(84,082	)		(84,082	)		—			(84,082	)
Contributions from non-controlling interests		—		—		—			—			—			8,108			8,108
Distributions to non-controlling interests		—		—		—			—			—			(6,681	)		(6,681	)
Balance at March 31, 2020	$	1,354	$	4,378,851	$	18,248		$	(747,533	)	$	3,650,920		$	23,507		$	3,674,427
Shares of class A common stock issued, net		108		297,491		—			—			297,599			—			297,599
Restricted class A common stock earned		—		8,527		—			—			8,527			—			8,527
Dividends reinvested		—		165		—			13			178			—			178
Deferred directors’ compensation		—		125		—			—			125			—			125
Other comprehensive loss		—		—		(9,323	)		—			(9,323	)		—			(9,323	)
Net income		—		—		—			17,544			17,544			961			18,505
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(90,807	)		(90,807	)		—			(90,807	)
Distributions to non-controlling interests		—		—		—			—			—			(3,447	)		(3,447	)
Balance at June 30, 2020	$	1,462	$	4,685,159	$	8,925		$	(820,783	)	$	3,874,763		$	21,021		$	3,895,784
Restricted class A common stock earned		—		8,524		—			—			8,524			—			8,524
Dividends reinvested		—		174		—			14			188			—			188
Deferred directors’ compensation		—		125		—			—			125			—			125
Other comprehensive loss		—		—		720			—			720			—			720
Net income		—		—		—			89,860			89,860			909			90,769
Dividends declared on common stock and deferred stock units, $0.62 per share		—		—		—			(90,816	)		(90,816	)		—			(90,816	)
Contributions from non-controlling interests		—		—		—			—			—			323			323
Distributions to non-controlling interests		—		—		—			—			—			(1,665	)		(1,665	)
Balance at September 30, 2020	$	1,462	$	4,693,982	$	9,645		$	(821,725	)	$	3,883,364		$	20,588		$	3,903,952

See accompanying notes to consolidated financial statements.

7

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

	Nine Months Ended September 30,
	2021			2020
Cash flows from operating activities
Net income	$	297,412		$	55,991
Adjustments to reconcile net income to net cash provided by operating activities
Satisfaction of management and incentive fees in stock		—			19,277
Non-cash compensation expense		24,184			25,978
Amortization of deferred fees on loans and debt securities		(43,299	)		(43,516	)
Amortization of deferred financing costs and premiums/discounts on debt obligations		29,698			28,122
(Decrease) increase in current expected credit loss reserve		(49,432	)		173,466
Unrealized gain on assets denominated in foreign currencies, net		(7,088	)		(648	)
Unrealized gain on derivative financial instruments, net		(3,298	)		(754	)
Realized loss (gain) on derivative financial instruments, net		5,483			(481	)
Changes in assets and liabilities, net
Other assets		(12,106	)		8,713
Other liabilities		13,468			(4,852	)
Net cash provided by operating activities		255,022			261,296
Cash flows from investing activities
Origination and fundings of loans receivable		(7,449,491	)		(1,489,101	)
Principal collections and sales proceeds from loans receivable and debt securities		3,423,460			1,358,640
Origination and exit fees received on loans receivable		79,971			14,215
Receipts under derivative financial instruments		44,428			87,286
Payments under derivative financial instruments		(75,458	)		(98,216	)
Collateral deposited under derivative agreements		(94,060	)		(255,830	)
Return of collateral deposited under derivative agreements		145,110			277,280
Net cash used in investing activities		(3,926,040	)		(105,726	)

continued…

See accompanying notes to consolidated financial statements.

8

Blackstone Mortgage Trust, Inc.

Consolidated Statements of Cash Flows (Unaudited)

(in thousands)

	Nine Months Ended September 30,
	2021			2020
Cash flows from financing activities
Borrowings under secured debt	$	7,701,481		$	2,317,616
Repayments under secured debt		(4,239,614	)		(3,506,154	)
Proceeds from issuance of securitized debt obligations		803,750			1,243,125
Repayment of securitized debt obligations		(888,763	)		(253,260	)
Borrowings under asset-specific debt		106,443			111,225
Repayments under asset-specific debt		(178,073	)		(82,754	)
Net proceeds from issuance of term loans		298,500			315,438
Repayments of term loans		(10,060	)		(6,428	)
Payment of deferred financing costs		(29,339	)		(34,726	)
Contributions from non-controlling interests		47,261			8,431
Distributions to non-controlling interests		(33,581	)		(11,793	)
Net proceeds from issuance of class A common stock		311,955			278,322
Dividends paid on class A common stock		(273,311	)		(258,264	)
Net cash provided by financing activities		3,616,649			120,778
Net (decrease) increase in cash, cash equivalents, and restricted cash		(54,369	)		276,348
Cash, cash equivalents, and restricted cash at beginning of period		289,970			150,090
Effects of currency translation on cash, cash equivalents, and restricted cash		579			590
Cash, cash equivalents , and restricted cash at end of period	$	236,180		$	427,028
Supplemental disclosure of cash flows information
Payments of interest	$	(207,293	)	$	(242,564	)
Receipts (payments) of income taxes	$	107		$	(146	)
Supplemental disclosure of non-cash investing and financing activities
Dividends declared, not paid	$	(97,552	)	$	(90,642	)
Satisfaction of management and incentive fees in stock	$	—		$	19,277
Loan principal payments held by servicer, net	$	299		$	3,235

See accompanying notes to consolidated financial statements.

9

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements

(Unaudited)

1. ORGANIZATION

References herein to “Blackstone Mortgage Trust,” “Company,” “we,” “us” or “our” refer to Blackstone Mortgage Trust, Inc. and its subsidiaries unless the context specifically requires otherwise.

Blackstone Mortgage Trust is a real estate finance company that originates senior loans collateralized by commercial real estate in North America, Europe, and Australia. Our portfolio is composed primarily of loans secured by high-quality, institutional assets in major markets, sponsored by experienced, well-capitalized real estate investment owners and operators. These senior loans are capitalized by accessing a variety of financing options, including borrowing under our credit facilities, issuing CLOs or single-asset securitizations, and syndicating senior loan participations, depending on our view of the most prudent financing option available for each of our investments. We are not in the business of buying or trading securities, and the only securities we own are the retained interests from our securitization financing transactions, which we have not financed. We are externally managed by BXMT Advisors L.L.C., or our Manager, a subsidiary of Blackstone Inc., or Blackstone, and are a real estate investment trust, or REIT, traded on the New York Stock Exchange, or NYSE, under the symbol “BXMT.” Our principal executive offices are located at 345 Park Avenue, 24th Floor, New York, New York 10154. We were incorporated in Maryland in 1998, when we reorganized from a California common law business trust into a Maryland corporation.

We conduct our operations as a REIT for U.S. federal income tax purposes. We generally will not be subject to U.S. federal income taxes on our taxable income to the extent that we annually distribute all of our net taxable income to stockholders and maintain our qualification as a REIT. We also operate our business in a manner that permits us to maintain an exclusion from registration under the Investment Company Act of 1940, as amended. We are organized as a holding company and conduct our business primarily through our various subsidiaries.     

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. The consolidated financial statements, including the notes thereto, are unaudited and exclude some of the disclosures required in audited financial statements. We believe we have made all necessary adjustments, consisting of only normal recurring items, so that the consolidated financial statements are presented fairly and that estimates made in preparing our consolidated financial statements are reasonable and prudent. The operating results presented for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year. The accompanying unaudited consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the Securities and Exchange Commission, or the SEC.

Basis of Presentation

The accompanying consolidated financial statements include, on a consolidated basis, our accounts, the accounts of our wholly-owned subsidiaries, majority-owned subsidiaries, and variable interest entities, or VIEs, of which we are the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

Certain reclassifications have been made in the presentation of the prior period statements of changes in equity, statements of cash flows, and loans receivable in Note 3 to conform to the current period presentation.

Principles of Consolidation

We consolidate all entities that we control through either majority ownership or voting rights. In addition, we consolidate all VIEs of which we are considered the primary beneficiary. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest and/or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with (i) the power to direct the activities that most significantly affect the VIE’s economic performance and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE.

10

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

In the third quarter of 2018, we contributed a loan to a single asset securitization vehicle, or the 2018 Single Asset Securitization, which is a VIE, and invested in the related subordinate position. We are not the primary beneficiary of the VIE because we do not have the power to direct the activities that most significantly affect the VIE’s economic performance and, therefore, do not consolidate the 2018 Single Asset Securitization on our balance sheet. We have classified the subordinate position we own as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. Refer to Note 16 for additional discussion of our VIEs.

In April 2017, we entered into a joint venture, or our Multifamily Joint Venture, with Walker & Dunlop Inc. to originate, hold, and finance multifamily bridge loans. Pursuant to the terms of the agreements governing the joint venture, Walker & Dunlop contributed 15% of the venture’s equity capital and we contributed 85%. We consolidate the Multifamily Joint Venture as we have a controlling financial interest. The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are owned by Walker & Dunlop. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on Walker & Dunlop’s pro rata ownership of our Multifamily Joint Venture.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The novel coronavirus, or COVID-19 has significantly impacted the global economy since the beginning of 2020 and has, among other things, created disruption in global supply chains, increased rates of unemployment and adversely impacted many industries, including industries related to the collateral underlying certain of our loans. During the nine months ended September 30, 2021, the global economy has, with certain setbacks, begun reopening and wider distribution of vaccines and easing of travel and other restrictions appear to be encouraging greater economic activity. Nonetheless, the recovery could remain uneven, particularly given uncertainty with respect to the distribution and acceptance of the vaccines and their effectiveness with respect to new variants of the virus. As a result, we are still unable to predict when normal economic activity and business operations will fully resume. We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of September 30, 2021, however uncertainty over the ultimate impact COVID-19 will have on the global economy generally, and our business in particular, makes any estimates and assumptions as of September 30, 2021 inherently less certain than they would be absent the current and potential impacts of COVID-19. Actual results may ultimately differ materially from those estimates.    

Revenue Recognition

Interest income from our loans receivable portfolio and debt securities is recognized over the life of each investment using the effective interest method and is recorded on the accrual basis. Recognition of fees, premiums, and discounts associated with these investments is deferred and recorded over the term of the loan or debt security as an adjustment to yield. Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful. Interest received is then recorded as a reduction in the outstanding principal balance until accrual is resumed when the loan becomes contractually current and performance is demonstrated to be resumed. In addition, for loans we originate, the related origination expenses are deferred and recognized as a component of interest income, however expenses related to loans we acquire are included in general and administrative expenses as incurred.

Cash, Cash Equivalents, and Restricted Cash

Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less. We may have bank balances in excess of federally insured amounts; however, we deposit our cash and cash equivalents with high credit-quality institutions to minimize credit risk exposure. We have not experienced, and do not expect, any losses on our cash or cash equivalents.

Restricted cash represents cash collateral held within our 2021 FL4 collateralized loan obligation and is included in Other Assets on our consolidated balance sheets. See Note 6 for further discussion of the 2021 FL4 collateralized loan obligation.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table provides a reconciliation of cash, cash equivalents, and restricted cash on our consolidated balance sheets to the total amount shown on our consolidated statements of cash flows ($ in thousands):

	September 30, 2021		September 30, 2020
Cash and cash equivalents	$	211,180	$	427,028
2021 FL4 CLO restricted cash		25,000		—
Total cash, cash equivalents, and restricted cash shown in our consolidated statements of cash flows	$	236,180	$	427,028

Through our subsidiaries, we have oversight of certain servicing accounts held with third-party servicers, or Servicing Accounts, which relate to borrower escrows and other cash balances aggregating $426.6 million and $384.6 million as of September 30, 2021 and December 31, 2020, respectively. This cash is maintained in segregated bank accounts, and these amounts are not included in the assets and liabilities presented in our consolidated balance sheets. Cash in these Servicing Accounts will be transferred by the respective third-party servicer to the borrower or us under the terms of the applicable loan agreement upon occurrence of certain future events. We do not generate any revenue or incur any expenses as a result of these Servicing Accounts.

Loans Receivable

We originate and purchase commercial real estate debt and related instruments generally to be held as long-term investments at amortized cost.

Debt Securities Held-to-Maturity

We classify our debt securities as held-to-maturity, as we have the intent and ability to hold these securities until maturity. We include our debt securities in other assets on our consolidated balance sheets at amortized cost.

Current Expected Credit Losses Reserve

The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. The initial CECL reserve recorded on January 1, 2020 is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. While ASU 2016-13 does not require any particular method for determining the CECL reserve, it does specify the reserve should be based on relevant information about past events, including historical loss experience, current portfolio and market conditions, and reasonable and supportable forecasts for the duration of each respective loan. In addition, other than a few narrow exceptions, ASU 2016-13 requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors.    

We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM, method which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board Staff Q&A Topic 326, No. 1. The WARM method requires us to reference historic loan loss data across a comparable data set and apply such loss rate to each of our loans over their expected remaining term, taking into consideration expected economic conditions over the relevant timeframe. We apply the WARM method for the majority of our loan portfolio, which loans share similar risk characteristics. In certain instances, for loans with unique risk characteristics, we may instead use a probability-weighted model that considers the likelihood of default and expected loss given default for each such individual loan.    

Application of the WARM method to estimate a CECL reserve requires judgment, including (i) the appropriate historical loan loss reference data, (ii) the expected timing and amount of future loan fundings and repayments, and (iii) the current credit quality of our portfolio and our expectations of performance, and (iv) market conditions over the relevant time period. To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, which includes zero realized loan losses since the launch of our senior loan origination business in 2013, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through August 31, 2021. Within this database, we focused our

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio.    

Our loans typically include commitments to fund incremental proceeds to our borrowers over the life of the loan, which future funding commitments are also subject to the CECL model. The CECL reserve related to future loan fundings is recorded as a component of Other Liabilities on our consolidated balance sheets. This CECL reserve is estimated using the same process outlined above for our outstanding loan balances, and changes in this component of the CECL reserve will similarly impact our consolidated net income. For both the funded and unfunded portions of our loans, we consider our internal risk rating of each loan as the primary credit quality indicator underlying our assessment.    

The CECL reserve is measured on a collective basis wherever similar risk characteristics exist within a pool of similar assets. We have identified the following pools and measure the reserve for credit losses using the following methods:    

• U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted-average remaining maturity of our loan pool, and an economic view.

• Non-U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted average remaining maturity of our loan pool, and an economic view.

• Unique Loans: a probability of default and loss given default model, assessed on an individual basis.

• Impaired Loans: impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

We adopted ASU 2016-13 using the modified-retrospective method for all financial assets measured at amortized cost. Prior to our adoption, we had no loan loss provisions on our consolidated balance sheets. We recorded a cumulative-effective adjustment to the opening retained earnings in our consolidated statement of equity as of January 1, 2020. The following table details the impact of this adoption ($ in thousands):    

	Impact of ASU 2016-13 Adoption
Assets:
Loans
U.S. Loans	$	8,955
Non-U.S. Loans		3,631
Unique Loans		1,356
CECL reserve on loans	$	13,942
CECL reserve on held-to-maturity debt securities		445
Liabilities:
CECL reserve on unfunded loan commitments		3,263
Total impact of ASU 2016-13 adoption on retained earnings	$	17,650

Contractual Term and Unfunded Loan Commitments    

Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve.    

Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables.    

Credit Quality Indicator

Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship. Based on a 5-point scale, our loans are rated “l” through “5,” from less risk to greater risk, relative to our loan portfolio in the aggregate, which ratings are defined as follows:    

1 -	Very Low Risk
2 -	Low Risk
3 -	Medium Risk
4 -	High Risk/Potential for Loss: A loan that has a risk of realizing a principal loss.
5 -	Impaired/Loss Likely: A loan that has a very high risk of realizing a principal loss or has otherwise incurred a principal loss.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

Estimation of Economic Conditions

In addition to the WARM method computations and probability-weighted models described above, our CECL reserve is also adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while based on the information available to us as of the balance sheet date, are ultimately indeterminate and the actual economic condition impacting our portfolio could vary significantly from the estimates we made as of September 30, 2021.    

Derivative Financial Instruments

We classify all derivative financial instruments as either other assets or other liabilities on our consolidated balance sheets at fair value.

On the date we enter into a derivative contract, we designate each contract as (i) a hedge of a net investment in a foreign operation, or net investment hedge, (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability, or cash flow hedge, (iii) a hedge of a recognized asset or liability, or fair value hedge, or (iv) a derivative instrument not to be designated as a hedging derivative, or non-designated hedge. For all derivatives other than those designated as non-designated hedges, we formally document our hedge relationships and designation at the contract’s inception. This documentation includes the identification of the hedging instruments and the hedged items, its risk management objectives, strategy for undertaking the hedge transaction and our evaluation of the effectiveness of its hedged transaction.

On a quarterly basis, we also formally assess whether the derivative we designated in each hedging relationship is expected to be, and has been, highly effective in offsetting changes in the value or cash flows of the hedged items. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued and the changes in fair value of the instrument are included in net income prospectively. Effective April 1, 2020, our net investment hedges are assessed using a method based on changes in spot exchange rates. Gains and losses, representing hedge components excluded from the assessment of effectiveness, are recognized in interest income on our consolidated statements of operations over the contractual term of our net investment hedges on a systematic and rational basis, as documented at hedge inception in accordance with our accounting policy election. All other changes in the fair value of our derivative instruments that qualify as hedges are reported as a component of accumulated other comprehensive income (loss) on our consolidated financial statements. Deferred gains and losses are reclassified out of accumulated other comprehensive income (loss) and into net income in the same period or periods during which the hedged transaction affects earnings, and are presented in the same line item as the earnings effect of the hedged item. For cash flow hedges, this is typically when the periodic swap settlements are made, while for net investment hedges, this occurs when the hedged item is sold or substantially liquidated. To the extent a derivative does not qualify for hedge accounting and is deemed a non-designated hedge, the changes in its fair value are included in net income concurrently.    

Secured Debt and Asset-Specific Debt

We record investments financed with secured debt or asset-specific debt as separate assets and the related borrowings under any secured debt or asset-specific debt are recorded as separate liabilities on our consolidated balance sheets. Interest income earned on the investments and interest expense incurred on the secured debt or asset-specific debt are reported separately on our consolidated statements of operations.    

Senior Loan Participations

In certain instances, we finance our loans through the non-recourse syndication of a senior loan interest to a third-party. Depending on the particular structure of the syndication, the senior loan interest may remain on our GAAP balance sheet or, in other cases, the sale will be recognized and the senior loan interest will no longer be included in our consolidated financial statements. When these sales are not recognized under GAAP we reflect the transaction by recording a loan participations sold liability on our consolidated balance sheet, however this gross presentation does not impact stockholders’ equity or net income. When the sales are recognized, our balance sheet only includes our remaining subordinate loan and not the non-consolidated senior interest we sold.    

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

Term Loans

We record our term loans as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the term loans as additional non-cash interest expense.    

Convertible Notes

The “Debt with Conversion and Other Options” Topic of the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, requires the liability and equity components of convertible debt instruments that may be settled in cash upon conversion, including partial cash settlement, to be separately accounted for in a manner that reflects the issuer’s nonconvertible debt borrowing rate. The initial proceeds from the sale of convertible notes are allocated between a liability component and an equity component in a manner that reflects interest expense at the rate of similar nonconvertible debt that could have been issued at such time. The equity component represents the excess initial proceeds received over the fair value of the liability component of the notes as of the date of issuance. We measured the estimated fair value of the debt component of our convertible notes as of the respective issuance dates based on our nonconvertible debt borrowing rate. The equity component of each series of our convertible notes is reflected within additional paid-in capital on our consolidated balance sheet, and the resulting issue discount is amortized over the period during which such convertible notes are expected to be outstanding (through the maturity date) as additional non-cash interest expense. The additional non-cash interest expense attributable to such convertible notes will increase in subsequent periods through the maturity date as the notes accrete to their par value over the same period.

Deferred Financing Costs

The deferred financing costs that are included as a reduction in the net book value of the related liability on our consolidated balance sheets include issuance and other costs related to our debt obligations. These costs are amortized as interest expense using the effective interest method over the life of the related obligations.

Fair Value of Financial Instruments

The “Fair Value Measurements and Disclosures” Topic of the FASB, or ASC 820, defines fair value, establishes a framework for measuring fair value, and requires certain disclosures about fair value measurements under GAAP. Specifically, this guidance defines fair value based on exit price, or the price that would be received upon the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.

ASC 820 also establishes a fair value hierarchy that prioritizes and ranks the level of market price observability used in measuring financial instruments. Market price observability is affected by a number of factors, including the type of financial instrument, the characteristics specific to the financial instrument, and the state of the marketplace, including the existence and transparency of transactions between market participants. Financial instruments with readily available quoted prices in active markets generally will have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value.

Financial instruments measured and reported at fair value are classified and disclosed based on the observability of inputs used in the determination, as follows:

• Level 1: Generally includes only unadjusted quoted prices that are available in active markets for identical financial instruments as of the reporting date.

• Level 2: Pricing inputs include quoted prices in active markets for similar instruments, quoted prices in less active or inactive markets for identical or similar instruments where multiple price quotes can be obtained, and other observable inputs, such as interest rates, yield curves, credit risks, and default rates.

• Level 3: Pricing inputs are unobservable for the financial instruments and include situations where there is little, if any, market activity for the financial instrument. These inputs require significant judgment or estimation by management of third-parties when determining fair value and generally represent anything that does not meet the criteria of Levels 1 and 2.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The estimated value of each asset reported at fair value using Level 3 inputs is determined by an internal committee composed of members of senior management of our Manager, including our Chief Executive Officer, Chief Financial Officer, and other senior officers.

Certain of our other assets are reported at fair value, as of quarter-end, either (i) on a recurring basis or (ii) on a nonrecurring basis, as a result of impairment or other events. Our assets that are recorded at fair value are discussed further in Note 15. We generally value our assets recorded at fair value by either (i) discounting expected cash flows based on assumptions regarding the collection of principal and interest and estimated market rates, or (ii) obtaining assessments from third-party dealers. For collateral-dependent loans that are identified as impaired, we measure impairment by comparing our Manager’s estimation of the fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.    

During the three months ended June 30, 2020, we recorded an aggregate $69.7 million CECL reserve specifically related to two of our loans receivable, which was unchanged as of September 30, 2021. These two loans have an aggregate outstanding principal balance of $338.7 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021. These loans receivable are therefore measured at fair value on a nonrecurring basis using significant unobservable inputs, and are classified as Level 3 assets in the fair value hierarchy. The significant unobservable inputs used to estimate the fair value of these loans receivable include the exit capitalization rate assumption used to forecast the future sale price of the underlying real estate collateral, which ranged from 4.25% to 4.80%.    

We are also required by GAAP to disclose fair value information about financial instruments, which are not otherwise reported at fair value in our consolidated balance sheet, to the extent it is practicable to estimate a fair value for those instruments. These disclosure requirements exclude certain financial instruments and all non-financial instruments.

The following methods and assumptions are used to estimate the fair value of each class of financial instruments, for which it is practicable to estimate that value:

• Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates fair value.

• Loans receivable, net: The fair values of these loans were estimated by our Manager based on a discounted cash flow methodology, taking into consideration various factors including capitalization rates, discount rates, leasing, credit worthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.

• Debt securities held-to-maturity: The fair value of these instruments was estimated by utilizing third-party pricing service providers assuming the securities are not sold prior to maturity. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Derivative financial instruments: The fair value of our foreign currency and interest rate contracts was estimated using advice from a third-party derivative specialist, based on contractual cash flows and observable inputs comprising foreign currency rates and credit spreads.

• Secured debt, net: The fair value of these instruments was estimated based on the rate at which a similar credit facility would currently be priced.

• Securitized debt obligations, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Asset-specific debt, net: The fair value of these instruments was estimated based on the rate at which a similar agreement would currently be priced.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

• Term loans, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Convertible notes, net: Each series of the convertible notes is actively traded and their fair values were obtained using quoted market prices.

Income Taxes

Our financial results generally do not reflect provisions for current or deferred income taxes on our REIT taxable income. We believe that we operate in a manner that will continue to allow us to be taxed as a REIT and, as a result, we generally do not expect to pay substantial corporate level taxes other than those payable by our taxable REIT subsidiaries. If we were to fail to meet these requirements, we may be subject to federal, state, and local income tax on current and past income, and penalties. Refer to Note 13 for additional information.

Stock-Based Compensation

Our stock-based compensation consists of awards issued to our Manager and certain individuals employed by an affiliate of our Manager that vest over the life of the awards, as well as deferred stock units issued to certain members of our board of directors. Stock-based compensation expense is recognized for these awards in net income on a variable basis over the applicable vesting period of the awards, based on the value of our class A common stock. Refer to Note 14 for additional information.

Earnings per Share

Basic earnings per share, or Basic EPS, is computed in accordance with the two-class method and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units outstanding during the period. Our restricted class A common stock is considered a participating security, as defined by GAAP, and has been included in our Basic EPS under the two-class method as these restricted shares have the same rights as our other shares of class A common stock, including participating in any gains or losses.

Diluted earnings per share, or Diluted EPS, is determined using the treasury stock method, and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units. Refer to Note 11 for additional discussion of earnings per share.

Foreign Currency

In the normal course of business, we enter into transactions not denominated in United States, or U.S., dollars. Foreign exchange gains and losses arising on such transactions are recorded as a gain or loss in our consolidated statements of operations. In addition, we consolidate entities that have a non-U.S. dollar functional currency. Non-U.S. dollar denominated assets and liabilities are translated to U.S. dollars at the exchange rate prevailing at the reporting date and income, expenses, gains, and losses are translated at the average exchange rate over the applicable period. Cumulative translation adjustments arising from the translation of non-U.S. dollar denominated subsidiaries are recorded in other comprehensive income (loss).

Underwriting Commissions and Offering Costs

Underwriting commissions and offering costs incurred in connection with common stock offerings are reflected as a reduction of additional paid-in capital. Costs incurred that are not directly associated with the completion of a common stock offering are expensed when incurred.

Recent Accounting Pronouncements

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,” or ASU 2020-04. ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications on debt instruments, leases, derivatives, and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848): Scope,” or ASU 2021-01. ASU 2021-01 clarifies that the practical expedients in ASU 2020-04 apply to derivatives impacted by changes in the interest rate used for margining, discounting, or contract price alignment. The guidance in ASU 2020-04 is optional and may be elected over time, through December 31, 2022, as reference rate reform activities occur. Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. In the first quarter of 2020, we have elected to apply the hedge accounting expedients, related to probability and the assessments of effectiveness, for future IBOR-indexed cash flows, to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with our past presentation. We continue to evaluate the impact of ASU 2020-04 and may apply other elections, as applicable, as the expected market transition from IBORs to alternative reference rates continues to develop.    

In August 2020, the FASB issued ASU 2020-06 “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” or ASU 2020-06. ASU 2020-06 simplifies the accounting for convertible debt by eliminating the beneficial conversion and cash conversion accounting models. ASU 2020-06 also updates the earnings per share calculation and requires entities to assume share settlement when the convertible debt can be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and is to be adopted through a cumulative-effect adjustment to the opening balance of retained earnings either at the date of adoption or in the first comparative period presented. Upon adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This will reduce the issue discount and result in less non-cash interest expense in our consolidated financial statements. Additionally, ASU 2020-06 will result in the reporting of a diluted earnings per share, if the effect is dilutive, in our consolidated financial statements, regardless of our settlement intent. We expect to adopt ASU 2020-06 using the modified retrospective method of transition, which we expect will result in an aggregate decrease to our additional paid-in capital of $2.4 million and an aggregate decrease to our accumulated deficit of $2.0 million, as of January 1, 2022.

Reference Rate Reform

LIBOR and certain other floating rate benchmark indices to which our floating rate loans and other loan agreements are tied, including, without limitation, the Euro Interbank Offered Rate, or EURIBOR, the Stockholm Interbank Offered Rate, or STIBOR, the Canadian Dollar Offered Rate, or CDOR, and the Australian Bank Bill Swap Reference Rate, or BBSY, or collectively, IBORs, are the subject of recent national, international and regulatory guidance and proposals for reform. On March 5, 2021, the Financial Conduct Authority of the U.K., or FCA, which has statutory powers to require panel banks to contribute to LIBOR where necessary, announced it would cease publication of certain IBORs, including one-week and two-month USD LIBOR and all tenors of GBP LIBOR, immediately after December 31, 2021 and cease the publication of the remaining tenors of USD LIBOR immediately after June 30, 2023. Additionally, the Federal Reserve Board, Federal Deposit Insurance Corporation, Office of the Comptroller of Currency, and other interagency regulatory bodies have advised U.S. banks to stop entering into new USD LIBOR based contracts by December 31, 2021.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate, or SOFR, a new index calculated using short-term repurchase agreements backed by Treasury securities, as its preferred alternative rate for USD LIBOR. In the U.K., the Bank of England’s working group on Sterling risk free rates set March 31, 2021 as the target date under which GBP LIBOR may no longer be used as the reference rate for new loan products with maturities after December 31, 2021. Market participants have started to transition to the Sterling Overnight Index Average, or SONIA, in line with guidance from the U.K. regulators. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%. Additionally, as of September 30, 2021, daily compounded SONIA is utilized as the floating benchmark rate on five of our loans and two of our credit facilities. As of September 30, 2021, SONIA was 0.05% and three-month GBP LIBOR was 0.08%.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

At this time, it is not possible to predict how markets will respond to SOFR, SONIA, or other alternative reference rates as the transition away from USD LIBOR and GBP LIBOR proceeds. Despite the LIBOR transition in other markets, benchmark rate methodologies in Europe, Canada, and Australia have been reformed and rates such as EURIBOR, STIBOR, CDOR, and BBSY may persist as International Organization of Securities Commissions, or IOSCO, compliant reference rates moving forward. However, multi-rate environments may persist in these markets as regulators and working groups have suggested market participants adopt alternative reference rates.

Refer to “Part I. Item 1A. Risk Factors—Risks Related to Our Lending and Investment Activities—The expected discontinuation of currently used financial reference rates and use of alternative replacement reference rates may adversely affect net interest income related to our loans and investments or otherwise adversely affect our results of operations, cash flows and the market value of our investments.” of our Annual Report on Form 10-K filed with the SEC on February 10, 2021.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

3. LOANS RECEIVABLE, NET

The following table details overall statistics for our loans receivable portfolio ($ in thousands):

	September 30, 2021			December 31, 2020
Number of loans		156			120
Principal balance	$	20,522,560		$	16,652,824
Net book value	$	20,276,078		$	16,399,166
Unfunded loan commitments(1)	$	4,220,214		$	3,160,084
Weighted-average spread(2)		+ 3.18	%		+ 3.18	%
Weighted-average all-in yield(2)		+ 3.51	%		+ 3.53	%
Weighted-average maximum maturity (years)(3)		3.3			3.1

(1)	Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date.
(2)	The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable to each loan. As of September 30, 2021, 99.6% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.4% of our loans earned a fixed rate of interest. We reflect our fixed rate loans as a spread over the relevant floating benchmark rates, as of September 30, 2021 and December 31, 2020, for purposes of the weighted-averages. As of December 31, 2020, 99.4% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.
(3)	Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. As of September 30, 2021, 44% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 56% were open to repayment by the borrower without penalty. As of December 31, 2020, 31% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 69% were open to repayment by the borrower without penalty.

The following table details the index rate floors for our loans receivable portfolio as of September 30, 2021 ($ in thousands):

	Loans Receivable Principal Balance
Index rate floors	USD		Non-USD(1)		Total
Fixed rate	$	—	$	78,511	$	78,511
0.00% or no floor(2)		3,265,850		4,912,695		8,178,545
0.01% to 0.24% floor		3,910,133		112,026		4,022,159
0.25% to 0.99% floor		1,363,685		271,616		1,635,301
1.00% or more floor		6,062,597		545,447		6,608,044
Total(3)(4)	$	14,602,265	$	5,920,295	$	20,522,560

(1)	Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, and Canadian Dollar Currencies.
(2)	Includes $338.7 million of loans accounted for under the cost-recovery method.
(3)	Excludes investment exposure to $79.2 million subordinate position we own in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(4)	As of September 30, 2021, the weighted-average index rate floor of our loan portfolio was 0.55%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.89%.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

Activity relating to our loans receivable portfolio was as follows ($ in thousands):    

	Principal Balance			Deferred Fees / Other Items(1)			Net Book Value
Loans receivable, as of December 31, 2020	$	16,652,824		$	(80,109	)	$	16,572,715
Loan fundings		7,449,491			—			7,449,491
Loan repayments and sales		(3,351,118	)		—			(3,351,118	)
Unrealized (loss) gain on foreign currency translation		(228,637	)		1,157			(227,480	)
Deferred fees and other items		—			(79,971	)		(79,971	)
Amortization of fees and other items		—			42,829			42,829
Loans receivable, as of September 30, 2021	$	20,522,560		$	(116,094	)	$	20,406,466
CECL reserve								(130,388	)
Loans receivable, net, as of September 30, 2021							$	20,276,078

(1)   Other items primarily consist of purchase and sale discounts or premiums, exit fees, and deferred origination expenses. 

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

The tables below detail the property type and geographic distribution of the properties securing the loans in our portfolio ($ in thousands):

September 30, 2021
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		65	$	10,239,432		$	10,940,778		50%
Multifamily		56		4,465,938			4,494,065		21
Hospitality		18		2,777,827			2,879,888		13
Industrial		5		894,865			901,211		4
Retail		6		770,045			773,491		4
Life Sciences		2		407,595			413,209		2
Other		4		850,764			1,117,525		6
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		26	$	4,463,202		$	4,491,804		21%
West		32		3,548,756			4,126,256		19
Southeast		33		3,425,624			3,618,296		17
Southwest		24		1,786,470			1,796,817		8
Midwest		10		1,201,663			1,205,877		6
Northwest		2		94,670			94,963		—
Subtotal		127		14,520,385			15,334,013		71
International
United Kingdom		14		1,754,872			1,999,180		9
Spain		4		1,448,355			1,455,967		7
Ireland		1		1,233,286			1,237,547		6
Sweden		1		564,277			569,529		3
Australia		2		175,786			176,144		1
Canada		2		66,881			66,864		—
Other Europe		5		642,624			680,923		3
Subtotal		29		5,886,081			6,186,154		29
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests as of September 30, 2021.
(2)	Excludes investment exposure to the $493.3 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

December 31, 2020
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		58	$	9,834,509		$	10,303,895		58%
Hospitality		14		2,295,255			2,369,454		14
Multifamily		31		1,788,149			1,862,667		11
Industrial		6		673,912			675,344		4
Retail		4		538,702			551,243		3
Life Sciences		1		146,290			147,763		1
Other		6		1,295,898			1,544,255		9
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		24	$	4,050,732		$	4,069,712		23%
West		27		2,942,126			3,413,089		20
Southeast		25		2,624,701			2,707,080		16
Midwest		8		973,702			976,693		6
Southwest		9		597,100			598,813		3
Northwest		1		15,404			15,413		—
Subtotal		94		11,203,765			11,780,800		68
International
United Kingdom		13		1,816,901			2,066,390		12
Ireland		1		1,309,443			1,317,846		8
Spain		2		1,247,162			1,252,080		7
Australia		2		259,126			259,788		1
Canada		3		82,185			82,262		—
Other Europe		5		654,133			695,455		4
Subtotal		26		5,368,950			5,673,821		32
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $801.8 million of such non-consolidated senior interests as of December 31, 2020.
(2)	Excludes investment exposure to the $735.5 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Loan Risk Ratings

As further described in Note 2, our Manager evaluates our loan portfolio on a quarterly basis. In conjunction with our quarterly loan portfolio review, our Manager assesses the risk factors of each loan, and assigns a risk rating based on several factors. Factors considered in the assessment include, but are not limited to, risk of loss, current LTV, debt yield, collateral performance, structure, exit plan, and sponsorship. Loans are rated “1” (less risk) through “5” (greater risk), which ratings are defined in Note 2. 

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table allocates the principal balance and net book value of our loans receivable based on our internal risk ratings ($ in thousands):    

	September 30, 2021						December 31, 2020
Risk Rating	Number of Loans	Net Book Value			Total Loan Exposure(1)(2)		Number of Loans	Net Book Value			Total Loan Exposure(1)(2)
1	8	$	931,330		$	931,831	8	$	777,163		$	778,283
2	27		4,800,884			4,836,029	17		2,513,848			2,528,835
3	110		12,060,623			13,129,870	79		9,911,914			10,763,496
4	9		2,276,394			2,283,701	14		3,032,593			3,045,309
5	2		337,235			338,736	2		337,197			338,698
Total loans receivable	156	$	20,406,466		$	21,520,167	120	$	16,572,715		$	17,454,621
CECL reserve			(130,388	)					(173,549	)
Loans receivable, net		$	20,276,078					$	16,399,166

(1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million and $801.8 million of such non-consolidated senior interests as of September 30, 2021 and December 31, 2020, respectively.

(2) Excludes investment exposure to the 2018 Single Asset Securitization of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

The weighted-average risk rating of our total loan exposure was 2.8 and 3.0 as of September 30, 2021 and December 31, 2020, respectively. The decrease in risk rating reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio, which resulted in several risk rating upgrades in our portfolio during the nine months ended September 30, 2021.

Current Expected Credit Loss Reserve

The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our loans receivable CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Loans Receivable, Net
CECL reserve as of December 31, 2020	$	42,995		$	27,734		$	33,159		$	69,661	$	173,549
Increase (decrease) in CECL reserve		1,539			(3,134	)		146			—		(1,449	)
CECL reserve as of March 31, 2021	$	44,534		$	24,600		$	33,305		$	69,661	$	172,100
Decrease in CECL reserve		(26,861	)		(15,771	)		(523	)		—		(43,155	)
CECL reserve as of June 30, 2021	$	17,673		$	8,829		$	32,782		$	69,661	$	128,945
Increase (decrease) in CECL reserve		3,253			(283	)		(1,527	)		—		1,443
CECL reserve as of September 30, 2021	$	20,926		$	8,546		$	31,255		$	69,661	$	130,388
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		8,955			3,631			1,356			—		13,942
Increase in CECL reserve		55,906			18,194			24,652			—		98,752
CECL reserve as of March 31, 2020	$	64,861		$	21,825		$	26,008		$	—	$	112,694
(Decrease) increase in CECL reserve		(3,457	)		(2,080	)		1,232			69,661		65,356
CECL reserve as of June 30, 2020	$	61,404		$	19,745		$	27,240		$	69,661	$	178,050
(Decrease) increase in CECL reserve		(10,762	)		7,035			2,703			—		(1,024	)
CECL reserve as of September 30, 2020	$	50,642		$	26,780		$	29,943		$	69,661	$	177,026

Our initial CECL reserve of $13.9 million against our loans receivable portfolio, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $1.4 million and a decrease of $43.2 million, respectively, in the CECL reserve against our loans receivable portfolio, bringing our total reserve to $130.4 million as of September 30, 2021. The increase in the CECL reserve during the three months

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

ended September 30, 2021 is primarily due to an increase in the size of our loans receivable portfolio during the three months ended September 30, 2021. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. During the three and nine months ended September 30, 2020, we recorded a decrease of $1.0 million and an increase of $163.1 million, respectively, in the CECL reserve against our loans receivable portfolio, bringing our total reserve to $177.0 million as of September 30, 2020. See Note 2 for further discussion of COVID-19.    

During 2020 and 2021, we entered into loan modifications related to a multifamily asset in New York City, which are classified as troubled debt restructurings under GAAP. These modifications included, among other changes, a reduction in the loan’s contractual interest payments and an extension of the loan’s maturity date. During the three months ended June 30, 2020, we recorded a $14.8 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $52.4 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

During 2020, we entered into a loan modification related to a hospitality asset in New York City, which is classified as a troubled debt restructuring under GAAP. This modification included, among other changes, a reduction in the loan’s contractual interest payments and an extension of the loan’s maturity date. During the three months ended June 30, 2020, we recorded a $54.9 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $286.3 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

As of July 1, 2020, the income accrual was suspended on the two loans detailed above, which had an aggregate outstanding principal balance of $338.7 million, as of September 30, 2021. No income was recorded on these loans subsequent to July 1, 2020. 

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

Our primary credit quality indicator is our risk ratings, which are further discussed above. The following tables present the net book value of our loan portfolio as of September 30, 2021 and December 31, 2020, respectively, by year of origination, investment pool, and risk rating ($ in thousands):    

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of September 30, 2021
Risk Rating	2021		2020		2019		2018		2017		Prior		Total
U.S. loans
1	$	—	$	43,745	$	696,764	$	—	$	66,188	$	—	$	806,697
2		694,114		—		586,976		887,935		391,740		81,256		2,642,021
3		4,979,207		830,399		1,844,466		1,522,591		602,976		269,127		10,048,766
4		—		—		96,494		540,766		63,365		51,923		752,548
5		—		—		—		—		—		—		—
Total U.S. loans	$	5,673,321	$	874,144	$	3,224,700	$	2,951,292	$	1,124,269	$	402,306	$	14,250,032
Non-U.S. loans
1	$	—	$	—	$	34,877	$	—	$	89,756	$	—	$	124,633
2		564,277		100,126		1,383,692		—		—		110,768		2,158,863
3		455,534		—		907,728		393,573		—		—		1,756,835
4		—		—		346,071		—		—		—		346,071
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	1,019,811	$	100,126	$	2,672,368	$	393,573	$	89,756	$	110,768	$	4,386,402
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		196,073		—		58,949		255,022
4		—		—		321,156		856,619		—		—		1,177,775
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	—	$	321,156	$	1,052,692	$	—	$	58,949	$	1,432,797
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		—		284,808		—		52,427		337,235
Total impaired loans	$	—	$	—	$	—	$	284,808	$	—	$	52,427	$	337,235
Total loans receivable
1	$	—	$	43,745	$	731,641	$	—	$	155,944	$	—	$	931,330
2		1,258,391		100,126		1,970,668		887,935		391,740		192,024		4,800,884
3		5,434,741		830,399		2,752,194		2,112,237		602,976		328,076		12,060,623
4		—		—		763,721		1,397,385		63,365		51,923		2,276,394
5		—		—		—		284,808		—		52,427		337,235
Total loans receivable	$	6,693,132	$	974,270	$	6,218,224	$	4,682,365	$	1,214,025	$	624,450	$	20,406,466
CECL reserve														(130,388	)
Loans receivable, net													$	20,276,078

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $77.6 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization. 

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Notes to Consolidated Financial Statements (continued)

(Unaudited)

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of December 31, 2020
Risk Rating	2020		2019		2018		2017		2016		Prior		Total
U.S. loans
1	$	—	$	231,796	$	253,674	$	43,906	$	17,009	$	—	$	546,385
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		781,595		2,391,297		1,672,897		1,134,288		227,466		220,644		6,428,187
4		65,978		170,541		1,055,142		63,293		105,380		—		1,460,334
5		—		—		—		—		—		—		—
Total U.S. loans	$	847,573	$	3,075,651	$	4,153,881	$	1,998,625	$	429,703	$	443,321	$	10,948,754
Non-U.S. loans
1	$	—	$	—	$	136,021	$	94,757	$	—	$	—	$	230,778
2		—		—		—		—		—		—		—
3		105,300		2,526,225		479,512		—		113,653		—		3,224,690
4		—		256,494		—		—		—		—		256,494
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	105,300	$	2,782,719	$	615,533	$	94,757	$	113,653	$	—	$	3,711,962
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		198,433		—		—		60,604		259,037
4		—		325,097		990,668		—		—		—		1,315,765
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	325,097	$	1,189,101	$	—	$	—	$	60,604	$	1,574,802
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		284,809		—		—		52,388		337,197
Total impaired loans	$	—	$	—	$	284,809	$	—	$	—	$	52,388	$	337,197
Total loans receivable
1	$	—	$	231,796	$	389,695	$	138,663	$	17,009	$	—	$	777,163
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		886,895		4,917,522		2,350,842		1,134,288		341,119		281,248		9,911,914
4		65,978		752,132		2,045,810		63,293		105,380		—		3,032,593
5		—		—		284,809		—		—		52,388		337,197
Total loans receivable	$	952,873	$	6,183,467	$	6,243,324	$	2,093,382	$	543,356	$	556,313	$	16,572,715
CECL reserve														(173,549	)
Loans receivable, net													$	16,399,166

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $75.7 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

28

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Multifamily Joint Venture

As discussed in Note 2, we entered into a Multifamily Joint Venture in April 2017. As of September 30, 2021 and December 31, 2020, our Multifamily Joint Venture held $817.9 million and $484.8 million of loans, respectively, which are included in the loan disclosures above. Refer to Note 2 for additional discussion of our Multifamily Joint Venture.

4. OTHER ASSETS AND LIABILITIES

Other Assets

The following table details the components of our other assets ($ in thousands):

	September 30, 2021			December 31, 2020
Accrued interest receivable	$	78,689		$	66,757
Debt securities held-to-maturity(1)		77,916			77,445
CECL reserve		(280	)		(1,723	)
Debt securities held-to-maturity, net		77,636			75,722
Derivative assets		35,858			522
2021 FL4 CLO restricted cash(2)		25,000			—
Loan portfolio payments held by servicer(3)		766			73,224
Prepaid expenses		43			973
Collateral deposited under derivative agreements		—			51,050
Prepaid taxes		—			376
Other		622			1,195
Total	$	218,614		$	269,819

(1) Represents the subordinate position we own in the 2018 Single Asset Securitization, which held aggregate loan assets of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively, with a yield to full maturity of L+10.0% and a maximum maturity date of June 9, 2025, assuming all extension options are exercised by the borrower. Refer to Note 16 for additional discussion.

(2) Represents $25.0 million of restricted cash held by our 2021 FL4 collateralized loan obligation that can be used to acquire and finance additional assets for up to six months from the date of closing.

(3) Represents loan principal and interest payments held by our third-party loan servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle.

29

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Current Expected Credit Loss Reserve

The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our debt securities CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	Debt Securities Held-To-Maturity
CECL reserve as of December 31, 2020	$	1,723
Decrease in CECL reserve		(834	)
CECL reserve as of March 31, 2021	$	889
Decrease in CECL reserve		(767	)
CECL reserve as of June 30, 2021	$	122
Increase in CECL reserve		158
CECL reserve as of September 30, 2021	$	280
CECL reserve as of December 31, 2019	$	—
Initial CECL reserve on January 1, 2020		445
Increase in CECL reserve		4,677
CECL reserve as of March 31, 2020	$	5,122
Decrease in CECL reserve		(1,003	)
CECL reserve as of June 30, 2020	$	4,119
Decrease in CECL reserve		(2,086	)
CECL reserve as of September 30, 2020	$	2,033

Our initial CECL reserve of $445,000 against our debt securities held-to-maturity, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $158,000 and a decrease of $1.4 million, respectively, in the CECL reserve against our debt securities held-to-maturity, bringing our total reserve to $280,000 as of September 30, 2021. During the three and nine months ended September 30, 2020, we recorded a decrease of $2.1 million and an increase of $1.6 million, respectively, in the CECL reserve against our debt securities held-to-maturity, bringing our total reserve to $2.0 million as of September 30, 2020. See Note 2 for further discussion of COVID-19.

Other Liabilities

The following table details the components of our other liabilities ($ in thousands):

	September 30, 2021		December 31, 2020
Accrued dividends payable	$	97,350	$	91,004
Accrued interest payable		25,772		20,548
Accrued management and incentive fees payable		19,342		19,158
Accounts payable and other liabilities		11,080		2,671
Current expected credit loss reserve for unfunded loan commitments(1)		5,203		10,031
Derivative liabilities		355		58,915
Secured debt repayments pending servicer remittance(2)		322		—
Total	$	159,424	$	202,327

(1) Represents the CECL reserve related to our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve.

(2) Represents pending transfers from our third-party loan servicer that were remitted to our banking counterparties during the subsequent remittance cycle.

30

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Current Expected Credit Loss Reserve for Unfunded Loan Commitments

As of September 30, 2021, we had aggregate unfunded loan commitments of $4.2 billion across 108 loans receivable. The expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve related to our unfunded loan commitments, and Note 18 for further discussion of our unfunded loan commitments. The following table presents the activity in the CECL reserve related to our unfunded loan commitments by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Unfunded Loan Commitments
CECL reserve as of December 31, 2020	$	6,953		$	2,994		$	84		$	—	$	10,031
Increase (decrease) in CECL reserve		216			778			(4	)		—		990
CECL reserve as of March 31, 2021	$	7,169		$	3,772		$	80		$	—	$	11,021
Decrease in CECL reserve		(4,315	)		(2,632	)		(37	)		—		(6,984	)
CECL reserve as of June 30, 2021	$	2,854		$	1,140		$	43		$	—	$	4,037
Increase (decrease) in CECL reserve		566			643			(43	)		—		1,166
CECL reserve as of September 30, 2021	$	3,420		$	1,783		$	—		$	—	$	5,203
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		2,801			453			9			—		3,263
Increase in CECL reserve		16,992			2,219			62			—		19,273
CECL reserve as of March 31, 2020	$	19,793		$	2,672		$	71		$	—	$	22,536
(Decrease) increase in CECL reserve		(6,957	)		(594	)		17			—		(7,534	)
CECL reserve as of June 30, 2020	$	12,836		$	2,078		$	88		$	—	$	15,002
(Decrease) increase in CECL reserve		(3,657	)		732			(20	)		—		(2,945	)
CECL reserve as of September 30, 2020	$	9,179		$	2,810		$	68		$	—	$	12,057

Our initial CECL reserve of $3.3 million against our unfunded loan commitments, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $1.2 million and a decrease of $4.8 million, respectively, in the CECL reserve against our unfunded loan commitments, bringing our total reserve to $5.2 million as of September 30, 2021. The increase in the CECL reserve against our unfunded loan commitments during the three months ended September 30, 2021 is primarily due to an increase in the size of our loans receivable portfolio during the three months ended September 30, 2021. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. During the three and nine months ended September 30, 2020, we recorded a decrease of $2.9 million and an increase of $8.8 million, respectively, in the CECL reserve against our unfunded loan commitments, bringing our total reserve to $12.1 million as of September 30, 2020. See Note 2 for further discussion of COVID-19. 

31

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

5. SECURED DEBT, NET

Our secured debt includes our secured credit facilities and acquisition facility. During the three months ended September 30, 2021, we obtained approval for $2.8 billion of new borrowings against $3.5 billion of collateral assets from nine facility lenders. Additionally, during the three months ended September 30, 2021, we increased the size of one of our secured credit facilities by $150.0 million and extended the term on four of our secured credit facilities, which represent an aggregate credit capacity of $2.3 billion as of September 30, 2021. The following table details our secured debt ($ in thousands):

	Secured Debt Borrowings Outstanding
	September 30, 2021			December 31, 2020
Secured credit facilities	$	11,188,855		$	7,896,863
Acquisition facility		—			—
Total secured debt	$	11,188,855		$	7,896,863
Deferred financing costs(1)		(18,525	)		(16,327	)
Net book value of secured debt	$	11,170,330		$	7,880,536

(1) Costs incurred in connection with our secured debt are recorded on our consolidated balance sheet when incurred and recognized as a component of interest expense over the life of each related facility.

Secured Credit Facilities

Our secured credit facilities are bilateral agreements we use to finance diversified pools of senior loan collateral with sufficient flexibility to accommodate our investment and asset management strategy. The facilities are uniformly structured to provide currency, index, and term-matched financing without capital markets based mark-to-market provisions.

The following table details our secured credit facilities as of September 30, 2021 ($ in thousands):

September 30, 2021
				Wtd Avg.				Wtd Avg.	Recourse Limitation
Currency	Lenders(1)	Borrowings		Maturity(2)	Loan Count	Collateral(3)		Maturity(4)	Wtd. Avg.	Range
USD	12	$	7,022,125	5/5/2025	114	$	9,557,168	5/1/2025	29%	25% - 100%
EUR	6		2,369,013	7/26/2024	10		3,150,165	7/4/2024	48%	25% - 100%
GBP	6		1,163,414	10/22/2024	12		1,739,121	11/9/2024	26%	25% - 50%
Others(5)	4		634,303	6/17/2025	5		812,537	5/28/2025	27%	25% - 100%
Total	12	$	11,188,855	2/17/2025	141	$	15,258,991	2/10/2025	32%	25% - 100%

(1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders.

(2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans.

(3) Represents the principal balance of the collateral assets.

(4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date.

(5) Includes Swedish Krona, Australian Dollar, and Canadian Dollar currencies.

The availability of funding under our secured credit facilities is based on the amount of approved collateral, which collateral is proposed by us in our discretion and approved by the respective counterparty in its discretion, resulting in a mutually agreed collateral portfolio construction. Certain structural elements of our secured credit facilities, including the limitation on recourse to us and facility economics are influenced by the specific collateral portfolio construction of each facility, and therefore vary within and among the facilities.

32

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following tables detail the spread of our secured credit facilities as of September 30, 2021 and December 31, 2020 ($ in thousands):

	Nine Months Ended September 30, 2021		September 30, 2021
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg. All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg. All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	3,065,115	$	6,288,807		+ 1.54	%	$	8,176,251		+ 3.09	%		+ 1.55	%
+ 1.51% to + 1.75%		1,268,796		2,780,867		+ 1.88	%		3,851,597		+ 3.40	%		+ 1.52	%
+ 1.76% to + 2.00%		479,767		897,258		+ 2.08	%		1,253,906		+ 3.95	%		+ 1.87	%
+ 2.01% or more		465,872		1,221,923		+ 2.42	%		1,977,237		+ 4.42	%		+ 2.00	%
Total	$	5,279,550	$	11,188,855		+ 1.77	%	$	15,258,991		+ 3.41	%		+ 1.64	%

	Year Ended  December 31, 2020		December 31, 2020
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg.  All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg.  All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	376,085	$	4,192,280		+ 1.59	%	$	6,338,626		+ 3.09	%		+ 1.50	%
+ 1.51% to + 1.75%		172,447		1,945,692		+ 1.95	%		2,975,581		+ 3.43	%		+ 1.48	%
+ 1.76% to + 2.00%		215,056		926,666		+ 2.06	%		1,212,546		+ 3.83	%		+ 1.77	%
+ 2.01% or more		134,928		832,225		+ 2.49	%		1,514,154		+ 4.34	%		+ 1.85	%
Total	$	898,516	$	7,896,863		+ 1.83	%	$	12,040,907		+ 3.40	%		+ 1.57	%

(1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable.

(2) Represents borrowings outstanding as of September 30, 2021 and December 31, 2020, respectively, for new financings during the nine months ended September 30, 2021 and year ended December 31, 2020, respectively, based on the date collateral was initially pledged to each credit facility.

(3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings.

(4) Represents the weighted-average all-in cost as of September 30, 2021 and December 31, 2020, respectively, and is not necessarily indicative of the spread applicable to recent or future borrowings.

(5) Represents the principal balance of the collateral assets.

(6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees.

(7) Represents the difference between the weighted-average all-in yield and weighted-average all-in cost.

Our secured credit facilities generally permit us to increase or decrease the amount advanced against the pledged collateral in our discretion within certain maximum/minimum amount and frequency limitations. As of September 30, 2021, there was an aggregate $306.2 million available to be drawn at our discretion under our credit facilities.

Acquisition Facility

We have a $250.0 million full recourse secured credit facility that is designed to finance eligible first mortgage originations for up to nine months as a bridge to term financing without obtaining discretionary lender approval. The cost of borrowing under the facility is variable, dependent on the type of loan collateral, and its maturity date is April 4, 2023.

During the nine months ended September 30, 2021, we had no borrowings under the acquisition facility and we recorded interest expense of $925,000, including $262,000 of amortization of deferred fees and expenses. As of September 30, 2021, we had one asset pledged to our acquisition facility and there was an aggregate $146.3 million available to be drawn at our discretion.

33

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

During the nine months ended December 31, 2020, we had no borrowings under the acquisition facility and we recorded interest expense of $1.1 million, including $411,000 of amortization of deferred fees and expenses.

Financial Covenants

We are subject to the following financial covenants related to our secured debt: (i) our ratio of earnings before interest, taxes, depreciation, and amortization, or EBITDA, to fixed charges, as defined in the agreements, shall be not less than 1.4 to 1.0; (ii) our tangible net worth, as defined in the agreements, shall not be less than $3.2 billion as of each measurement date plus 75% of the net cash proceeds of future equity issuances subsequent to September 30, 2021; (iii) cash liquidity shall not be less than the greater of (x) $10.0 million or (y) no more than 5% of our recourse indebtedness; and (iv) our indebtedness shall not exceed 83.33% of our total assets. As of September 30, 2021 and December 31, 2020, we were in compliance with these covenants.

6. SECURITIZED DEBT OBLIGATIONS, NET

We have financed certain pools of our loans through collateralized loan obligations, which include the 2021 FL4 CLO, 2020 FL3 CLO, 2020 FL2 CLO, and 2017 FL1 CLO or collectively, the CLOs. We have also financed one of our loans through a single asset securitization vehicle, or the 2017 Single Asset Securitization. The CLOs and the 2017 Single Asset Securitization are consolidated in our financial statements and have issued securitized debt obligations that are non-recourse to us. Refer to Note 16 for further discussion of our CLOs and 2017 Single Asset Securitization.

The following tables detail our securitized debt obligations ($ in thousands):

	September 30, 2021
Securitized Debt Obligations	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2021 FL4 Collateralized Loan Obligation
Collateral assets	35	$	1,000,000	$	1,000,000		+ 3.41	%		July 2024
Financing provided	1		803,750		796,864		+ 1.65	%		May 2038
2020 FL3 Collateralized Loan Obligation
Collateral assets	21		1,000,000		1,000,000		+ 3.02	%		April 2024
Financing provided(2)	1		808,750		803,378		+ 2.10	%		November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets	24		1,500,000		1,500,000		+ 3.10	%		March 2024
Financing provided(2)	1		1,243,125		1,235,807		+ 1.45	%		February 2038
Total
Collateral assets	80	$	3,500,000	$	3,500,000		+ 3.17	%
Financing provided(4)	3	$	2,855,625	$	2,836,049		+ 1.69	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and SOFR, as applicable to each securitized debt obligation. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	During the three and nine months ended September 30, 2021, we recorded $10.7 million and $35.2 million, respectively, of interest expense related to our securitized debt obligations.

34

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

	December 31, 2020
Securitized Debt Obligations	Count		Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2020 FL3 Collateralized Loan Obligation
Collateral assets		25	$	1,000,000	$	1,000,000		+ 3.09	%	February 2024
Financing provided		1		808,750		800,993		+ 2.08	%	November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets		31		1,500,000		1,500,000		+ 3.17	%	January 2024
Financing provided		1		1,243,125		1,233,464		+ 1.44	%	February 2038
2017 FL1 Collateralized Loan Obligation
Collateral assets		15		666,334		666,334		+ 3.39	%	January 2023
Financing provided		1		483,834		483,113		+ 1.83	%	June 2035
2017 Single Asset Securitization
Collateral assets(4)		1		619,194		618,766		+ 3.57	%	June 2023
Financing provided		1		404,929		404,929		+ 1.63	%	June 2033
Total
Collateral assets		72	$	3,785,528	$	3,785,100		+ 3.25	%
Financing provided(5)		4	$	2,940,638	$	2,922,499		+ 1.70	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	The collateral assets for the 2017 Single Asset Securitization include the total loan amount, of which we securitized $500.0 million.
(5)	During the three and nine months ended September 30, 2020, we recorded $9.1 million and $31.8 million, respectively, of interest expense related to our securitized debt obligations.

35

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

7. ASSET-SPECIFIC DEBT, NET

The following tables detail our asset-specific debt ($ in thousands):

	September 30, 2021
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	3	$	436,562	$	424,650		+ 4.34	%		Dec. 2024
Financing provided	3	$	328,068	$	320,895		+ 3.13	%		Dec. 2024

	December 31, 2020
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	4	$	512,794	$	499,085		+ 4.65	%		Oct. 2023
Financing provided	4	$	399,699	$	391,269		+ 3.48	%		Oct. 2023

(1)	These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs.
(2)	The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific debt is term-matched to the corresponding collateral loans.

8. TERM LOANS, NET

During the nine months ended September 30, 2021, we (i) increased our borrowings under our B-2 senior term loan facility by $100.0 million and decreased the interest rate by 2.50% to USD LIBOR plus 2.75%, and (ii) we increased our borrowings under our B-1 senior term loan facility by $200.0 million.

As of September 30, 2021, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands):

Term Loans	Face Value		Interest Rate(1)			All-in Cost(1)(2)			Maturity
B-1 Term Loan	$	932,256		+ 2.25	%		+ 2.53	%		April 23, 2026
B-2 Term Loan	$	420,450		+ 2.75	%		+ 3.42	%		April 23, 2026

(1)	The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%.
(2)	Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.

The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the aggregate principal balance due in quarterly installments. The issue discount and transaction expenses on the B-1 Term Loan were $3.1 million and $12.6 million, respectively, which will be amortized into interest expense over the life of the B-1 Term Loan. The issue discount and transaction expenses of the B-2 Term Loan were $9.6 million and $5.4 million, respectively, which will be amortized into interest expense over the life of the B-2 Term Loan.

The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	1,352,706		$	1,062,766
Unamortized discount		(9,748	)		(9,807	)
Deferred financing costs		(13,321	)		(11,255	)
Net book value	$	1,329,637		$	1,041,704

The guarantee under our Term Loans contains the financial covenant that our indebtedness shall not exceed 83.33% of our total assets. As of September 30, 2021 and December 31, 2020, we were in compliance with this covenant. Refer to Note 2 for additional discussion of our accounting policies for the Term Loans.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

9. CONVERTIBLE NOTES, NET

As of September 30, 2021, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands):

Convertible Notes Issuance	Face Value		Interest Rate			All-in Cost(1)			Conversion Rate(2)		Maturity
May 2017	$	402,500		4.38	%		4.85	%		28.0324		May 5, 2022
March 2018	$	220,000		4.75	%		5.33	%		27.6052		March 15, 2023

(1)

Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method.

(2)

Represents the shares of class A common stock per $1,000 principal amount of Convertible Notes, which is equivalent to a conversion price of $35.67 and $36.23 per share of class A common stock, respectively, for the May 2017 and March 2018 convertible notes. The cumulative dividend threshold as defined in the respective May 2017 and March 2018 convertible notes supplemental indentures have not been exceeded as of September 30, 2021.

The Convertible Notes are convertible at the holders’ option into shares of our class A common stock, only under specific circumstances, prior to the close of business on January 31, 2022 and December 14, 2022 for the May 2017 and March 2018 convertible notes, respectively, at the applicable conversion rate in effect on the conversion date.​​​​​​​ Thereafter, the Convertible Notes are convertible at the option of the holder at any time until the second scheduled trading day immediately preceding the maturity date. We may not redeem the Convertible Notes prior to maturity. The last reported sale price of our class A common stock of $30.32 on September 30, 2021 was less than the per share conversion price of the May 2017 and March 2018 convertible notes. We have the intent and ability to settle each series of the Convertible Notes in cash and, as a result, the potential conversion of the Convertible Notes did not have any impact on our diluted earnings per share.

Upon our issuance of the May 2017 convertible notes, we recorded a $979,000 discount based on the implied value of the conversion option and an assumed effective interest rate of 4.57%, as well as $8.4 million of issue discount and issuance costs. Including the amortization of the discount and issuance costs, our total cost of the May 2017 convertible notes issuance is 4.91% per annum.

Upon our issuance of the March 2018 convertible notes, we recorded a $1.5 million discount based on the implied value of the conversion option and an assumed effective interest rate of 5.25%, as well as $5.2 million of issue discount and issuance costs. Including the amortization of the discount and issuance costs, our total cost of the March 2018 convertible notes issuance is 5.49% per annum.

The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	622,500		$	622,500
Unamortized discount		(3,301	)		(5,715	)
Deferred financing costs		(214	)		(396	)
Net book value	$	618,985		$	616,389

37

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table details our interest expense related to the Convertible Notes ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Cash coupon	$	7,015	$	7,015	$	21,045	$	21,045
Discount and issuance cost amortization		873		831		2,595		2,470
Total interest expense	$	7,888	$	7,846	$	23,640	$	23,515

Accrued interest payable for the Convertible Notes was $7.8 million and $6.0 million as of September 30, 2021 and December 31, 2020, respectively. Refer to Note 2 for additional discussion of our accounting policies for the Convertible Notes.

10. DERIVATIVE FINANCIAL INSTRUMENTS

The sole objective of our use of derivative financial instruments is to minimize the risks and/or costs associated with our investments and/or financing transactions. These derivatives may or may not qualify as net investment, cash flow, or fair value hedges under the hedge accounting requirements of ASC 815 – “Derivatives and Hedging.” Derivatives not designated as hedges are not speculative and are used to manage our exposure to interest rate movements and other identified risks. Refer to Note 2 for additional discussion of the accounting for designated and non-designated hedges.

The use of derivative financial instruments involves certain risks, including the risk that the counterparties to these contractual arrangements do not perform as agreed. To mitigate this risk, we only enter into derivative financial instruments with counterparties that have appropriate credit ratings and are major financial institutions with which we and our affiliates may also have other financial relationships.

Cash Flow Hedges of Interest Rate Risk

Certain of our transactions expose us to interest rate risks, which include a fixed versus floating rate mismatch between our assets and liabilities. We use derivative financial instruments, which includes interest rate caps, and may also include interest rate swaps, options, floors, and other interest rate derivative contracts, to hedge interest rate risk.

The following tables detail our outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (notional amount in thousands):

September 30, 2021
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	1	C$	21,020		1.0	%		CDOR		0.2

December 31, 2020
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	2	C$	38,293		1.0	%		CDOR		0.8

Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on our floating rate debt. During the twelve months following September 30, 2021, we estimate that an additional $3,000 will be reclassified from accumulated other comprehensive income (loss) as an increase to interest expense.

Net Investment Hedges of Foreign Currency Risk

Certain of our international investments expose us to fluctuations in foreign interest rates and currency exchange rates. These fluctuations may impact the value of our cash receipts and payments in terms of our functional currency, the U.S. dollar. We use foreign currency forward contracts to protect the value or fix the amount of certain investments or cash flows in terms of the U.S. dollar.

38

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Designated Hedges of Foreign Currency Risk

The following table details our outstanding foreign exchange derivatives that were designated as net investment hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Foreign Currency Derivatives	Number of Instruments	Notional Amount		Foreign Currency Derivatives	Number of Instruments		Notional Amount
Buy USD / Sell SEK Forward	1	kr	999,500	Buy USD / Sell EUR Forward		8	€	754,722
Buy USD / Sell EUR Forward	6	€	817,642	Buy USD / Sell GBP Forward		4	€	372,487
Buy USD / Sell GBP Forward	1	£	542,551	Buy USD / Sell AUD Forward		1	A$	92,800
Buy USD / Sell AUD Forward	1	A$	89,500	Buy USD / Sell CAD Forward		1	C$	26,200
Buy USD / Sell CAD Forward	1	C$	21,000

Non-designated Hedges of Foreign Currency Risk

The following table details our outstanding foreign exchange derivatives that were non-designated hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Non-designated Hedges	Number of Instruments	Notional Amount		Non-designated Hedges	Number of Instruments		Notional Amount
Buy GBP / Sell EUR Forward	1	€	8,410	Buy EUR / Sell GBP Forward		2	£	146,207
Buy EUR / Sell USD Forward	1	€	13,900	Buy USD / Sell EUR Forward		1	€	8,410
Buy USD / Sell EUR Forward	1	€	13,900

Financial Statement Impact of Hedges of Foreign Currency Risk

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

				Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts
				Three Months			Three Months			Nine Months			Nine Months
Foreign Exchange Contracts	Location of Income			Ended			Ended			Ended			Ended
in Hedging Relationships	(Expense) Recognized			September 30, 2021			September 30, 2020			September 30, 2021			September 30, 2020
Designated Hedges		Interest Income	(1)	$	1,542		$	1,794		$	5,294		$	2,303
Non-Designated Hedges		Interest Income	(1)		34			(227	)		(340	)		(222	)
Non-Designated Hedges		Interest Expense	(2)		(8	)		669			(7,139	)		(846	)
Total				$	1,568		$	2,236		$	(2,185	)	$	1,235

(1)	Represents the forward points earned on our foreign currency forward contracts, which reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the rate exposure to USD LIBOR, resulting in additional interest income earned in U.S. dollar terms.
(2)	Represents the spot rate movement in our non-designated hedges, which are marked-to-market and recognized in interest expense.

39

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Valuation and Other Comprehensive Income

The following table summarizes the fair value of our derivative financial instruments ($ in thousands):

	Fair Value of Derivatives in an Asset Position(1) as of				Fair Value of Derivatives in a Liability Position(2) as of
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
Derivatives designated as hedging instruments:
Foreign exchange contracts	$	35,460	$	521	$	—	$	55,758
Interest rate derivatives		—		1		—		—
Total	$	35,460	$	522	$	—	$	55,758
Derivatives not designated as hedging instruments:
Foreign exchange contracts	$	398	$	—	$	355	$	3,157
Interest rate derivatives		—		—		—		—
Total	$	398	$	—	$	355	$	3,157
Total Derivatives	$	35,858	$	522	$	355	$	58,915

(1) Included in other assets in our consolidated balance sheets.

(2) Included in other liabilities in our consolidated balance sheets.

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

	Amount of Gain Recognized in OCI on Derivatives				Location of Gain (Loss)			Amount of Loss Reclassified from Accumulated OCI into Income
	Three Months		Nine Months		Reclassified from Accumulated			Three Months			Nine Months
Derivatives in	Ended		Ended					Ended			Ended
Hedging Relationships	September 30, 2021		September 30, 2021		OCI into Income			September 30, 2021			September 30, 2021
Net Investment Hedges
Foreign exchange contracts(1)	$	46,078	$	65,052		Interest Expense		$	—		$	—
Cash Flow Hedges
Interest rate derivatives		—		—		Interest Expense	(2)		(5	)		(7	)
Total	$	46,078	$	65,052				$	(5	)	$	(7	)

(1)	During the three and nine months ended September 30, 2021, we received net cash settlements of $18.3 million and paid net cash settlements of $31.0 million, respectively, on our foreign currency forward contracts. Those amounts are included as a component of accumulated other comprehensive income (loss) on our consolidated balance sheets.
(2)	During the three months ended September 30, 2021, we recorded total interest and related expenses of $82.7 million, which included interest expense of $5,000 related to our cash flow hedges. During the nine months ended September 30, 2021, we recorded total interest and related expenses of $243.4 million, which included interest expense of $7,000.

Credit-Risk Related Contingent Features

We have entered into agreements with certain of our derivative counterparties that contain provisions where if we were to default on any of our indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, we may also be declared in default on our derivative obligations. In addition, certain of our agreements with our derivative counterparties require that we post collateral to secure net liability positions. As of September 30, 2021, we were in a net asset position with both of our derivative counterparties and did not have any collateral posted under these derivative contracts. As of December 31, 2020, we were in a net liability position with each such derivative counterparty and posted collateral of $51.1 million under these derivative contracts.    

40

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

11. EQUITY

Stock and Stock Equivalents

Authorized Capital

As of September 30, 2021, we had the authority to issue up to 500,000,000 shares of stock, consisting of 400,000,000 shares of class A common stock and 100,000,000 shares of preferred stock. Subject to applicable NYSE listing requirements, our board of directors is authorized to cause us to issue additional shares of authorized stock without stockholder approval. In addition, to the extent not issued, currently authorized stock may be reclassified between class A common stock and preferred stock. We did not have any shares of preferred stock issued and outstanding as of September 30, 2021 and December 31, 2020.

Class A Common Stock and Deferred Stock Units

Holders of shares of our class A common stock are entitled to vote on all matters submitted to a vote of stockholders and are entitled to receive such dividends as may be authorized by our board of directors and declared by us, in all cases subject to the rights of the holders of shares of outstanding preferred stock, if any.

The following table details our issuances of class A common stock during the nine months ended September 30, 2021 ($ in thousands, except share and per share data):

	Class A Common Stock Offerings
	September 2021
Shares issued		10,000,000
Gross / net issue price per share(1)		$31.45 / $31.24
Net proceeds(2)		$311,955

(1)	Represents the gross price per share issued, as well as the net proceeds per share after underwriting or sales discounts and commissions.
(2)	Net proceeds represents proceeds received from the underwriters less applicable transaction costs.

We also issue restricted class A common stock under our stock-based incentive plans. Refer to Note 14 for additional discussion of these long-term incentive plans. In addition to our class A common stock, we also issue deferred stock units to certain members of our board of directors in lieu of cash compensation for services rendered. These deferred stock units are non-voting, but carry the right to receive dividends in the form of additional deferred stock units in an amount equivalent to the cash dividends paid to holders of shares of class A common stock.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table details the movement in our outstanding shares of class A common stock, including restricted class A common stock and deferred stock units:

	Nine Months Ended September 30,
Common Stock Outstanding(1)	2021		2020
Beginning balance		147,086,722		135,263,728
Issuance of class A common stock(2)		10,001,429		10,842,295
Issuance of restricted class A common stock, net(3)		234,229		351,333
Issuance of deferred stock units		50,009		33,790
Ending balance		157,372,389		146,491,146

(1)	Includes 356,700 and 293,856 deferred stock units held by members of our board of directors as of September 30, 2021 and 2020, respectively.
(2)	Includes 1,429 and 1,599 shares issued under our dividend reinvestment program during the nine months ended September 30, 2021 and 2020, respectively.
(3)	The amounts are net of 29,580 and 249 shares of restricted class A common stock forfeited under our stock-based incentive plans during the nine months ended September 30, 2021 and 2020, respectively. See Note 14 for further discussion of our stock-based incentive plans.

Dividend Reinvestment and Direct Stock Purchase Plan

On March 25, 2014, we adopted a dividend reinvestment and direct stock purchase plan, under which we registered and reserved for issuance, in the aggregate, 10,000,000 shares of class A common stock. Under the dividend reinvestment component of this plan, our class A common stockholders can designate all or a portion of their cash dividends to be reinvested in additional shares of class A common stock. The direct stock purchase component allows stockholders and new investors, subject to our approval, to purchase shares of class A common stock directly from us. During the three and nine months ended September 30, 2021, we issued 480 shares and 1,429 shares, respectively, of class A common stock under the dividend reinvestment component of the plan compared to 628 shares and 1,599 shares, respectively, for the same periods in 2020. As of September 30, 2021, a total of 9,990,545 shares of class A common stock remained available for issuance under the dividend reinvestment and direct stock purchase plan.

At the Market Stock Offering Program

On November 14, 2018, we entered into six equity distribution agreements, or ATM Agreements, pursuant to which we may sell, from time to time, up to an aggregate sales price of $500.0 million of our class A common stock. On July 26, 2019, we amended our existing ATM Agreements and entered into one additional ATM Agreement. Sales of class A common stock made pursuant to our ATM Agreements may be made in negotiated transactions or transactions that are deemed to be “at the market” offerings as defined in Rule 415 under the Securities Act of 1933, as amended. Actual sales depend on a variety of factors including market conditions, the trading price of our class A common stock, our capital needs, and our determination of the appropriate sources of funding to meet such needs. During the nine months ended September 30, 2021 and 2020, we did not sell any shares of our class A common stock under ATM Agreements. As of September 30, 2021, sales of our class A common stock with an aggregate sales price of $363.8 million remained available for issuance under our ATM Agreements.

Dividends

We generally intend to distribute substantially all of our taxable income, which does not necessarily equal net income as calculated in accordance with GAAP, to our stockholders each year to comply with the REIT provisions of the Internal Revenue Code of 1986, as amended, or the Internal Revenue Code. Our dividend policy remains subject to revision at the discretion of our board of directors. All distributions will be made at the discretion of our board of directors and will depend upon our taxable income, our financial condition, our maintenance of REIT status, applicable law, and other factors as our board of directors deems relevant.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

On September 15, 2021, we declared a dividend of $0.62 per share, or $97.3 million in aggregate, that was paid on October 15, 2021, to stockholders of record as of September 30, 2021. The following table details our dividend activity ($ in thousands, except per share data):    

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Dividends declared per share of common stock	$	0.62	$	0.62	$	1.86	$	1.86
Class A common stock dividends declared	$	97,350	$	90,642	$	279,659	$	265,205
Deferred stock unit dividends declared		202		174		591		502
Total dividends declared	$	97,552	$	90,816	$	280,250	$	265,707

Earnings Per Share

We calculate our basic and diluted earnings per share using the two-class method for all periods presented as the unvested shares of our restricted class A common stock qualify as participating securities, as defined by GAAP. These restricted shares have the same rights as our other shares of class A common stock, including participating in any dividends, and therefore have been included in our basic and diluted net income (loss) per share calculation. Our Convertible Notes are excluded from dilutive earnings per share as we have the intent and ability to settle these instruments in cash.

The following table sets forth the calculation of basic and diluted net income (loss) per share of class A common stock based on the weighted-average of both restricted and unrestricted class A common stock outstanding ($ in thousands, except per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income(1)	$	83,757	$	89,860	$	295,254	$	54,054
Weighted-average shares outstanding, basic and diluted		149,214,819		146,484,651		147,971,737		140,157,620
Per share amount, basic and diluted	$	0.56	$	0.61	$	2.00	$	0.39

(1)   Represents net income attributable to Blackstone Mortgage Trust.

Other Balance Sheet Items

Accumulated Other Comprehensive Income

As of September 30, 2021, total accumulated other comprehensive income was $9.9 million, primarily including $69.9 million of net realized and unrealized gains related to changes in the fair value of derivative instruments, offset by $60.0 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies. As of December 31, 2020, total accumulated other comprehensive income was $11.2 million, primarily representing (i) $6.4 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies, and (ii) $4.8 million of net realized and unrealized gains related to changes in the fair value of derivative instruments.

Non-Controlling Interests

The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are not owned by us. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on their pro rata ownership of our Multifamily Joint Venture. As of September 30, 2021, our Multifamily Joint Venture’s total equity was $226.7 million, of which $192.7 million was owned by us, and $34.0 million was allocated to non-controlling interests. As of December 31, 2020, our Multifamily Joint Venture’s total equity was $121.1 million, of which $102.9 million was owned by us, and $18.2 million was allocated to non-controlling interests.

43

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

12. OTHER EXPENSES

Our other expenses consist of the management and incentive fees we pay to our Manager and our general and administrative expenses.

Management and Incentive Fees

Pursuant to a management agreement between our Manager and us, or our Management Agreement, our Manager earns a base management fee in an amount equal to 1.50% per annum multiplied by our outstanding equity balance, as defined in the Management Agreement. In addition, our Manager is entitled to an incentive fee in an amount equal to the product of (i) 20% and (ii) the excess of (a) our Core Earnings (as defined in our Management Agreement) for the previous 12-month period over (b) an amount equal to 7.00% per annum multiplied by our outstanding Equity, provided that our Core Earnings over the prior three-year period is greater than zero. Core Earnings, as defined in our Management Agreement, is generally equal to our GAAP net income (loss), including realized gains and losses not otherwise recognized in current period GAAP net income (loss), and excluding (i) non-cash equity compensation expense, (ii) depreciation and amortization, (iii) unrealized gains (losses), (iv) certain non-cash items, and (v) incentive management fees.

During the three and nine months ended September 30, 2021, we incurred $15.8 million and $46.9 million, respectively, of management fees payable to our Manager, compared to $15.6 million and $44.8 million during the same period in 2020. In addition, during the three and nine months ended September 30, 2021, we incurred $3.6 million and $13.2 million, respectively, of incentive fees payable to our Manager, compared to $3.4 million and $13.9 million during the same period in 2020. During the nine months ended September 30, 2021, we paid $59.9 million of aggregate management and incentive fees in cash. During the nine months ended September 30, 2020, we issued 840,696 shares of class A common stock to our Manager in satisfaction of our aggregate $19.3 million of management and incentive fees accrued in the first quarter of 2020, and paid the remaining $40.7 million in cash.

As of September 30, 2021 and December 31, 2020 we had accrued management and incentive fees payable to our Manager of $19.3 million and $19.2 million, respectively, which are included in Other Liabilities on our consolidated balance sheets.

General and Administrative Expenses

General and administrative expenses consisted of the following ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Professional services(1)	$	1,969	$	1,715	$	5,831	$	5,130
Operating and other costs(1)		792		878		2,093		3,212
Subtotal		2,761		2,593		7,924		8,342
Non-cash compensation expenses
Restricted class A common stock earned		7,907		8,524		23,762		25,603
Director stock-based compensation		173		125		422		375
Subtotal		8,080		8,649		24,184		25,978
Total general and administrative expenses	$	10,841	$	11,242	$	32,108	$	34,320

(1)   During the three and nine months ended September 30, 2021, we recognized an aggregate $110,000 and $543,000, respectively, of expenses related to our Multifamily Joint Venture. During the three and nine months ended September 30, 2020, we recognized an aggregate $293,000 and $869,000, respectively, of expenses related to our Multifamily Joint Venture.

13. INCOME TAXES

We have elected to be taxed as a REIT under the Internal Revenue Code for U.S. federal income tax purposes. We generally must distribute annually at least 90% of our net taxable income, subject to certain adjustments and excluding any net capital gain, in order for U.S. federal income tax not to apply to our earnings that we distribute. To the extent that we satisfy this distribution requirement, but distribute less than 100% of our net taxable income, we will be subject to U.S. federal income tax on our undistributed taxable income. In addition, we will be subject to a 4% nondeductible excise tax if the actual amount that we pay out to our stockholders in a calendar year is less than a minimum amount specified under U.S. federal tax laws.

44

Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Our qualification as a REIT also depends on our ability to meet various other requirements imposed by the Internal Revenue Code, which relate to organizational structure, diversity of stock ownership, and certain restrictions with regard to the nature of our assets and the sources of our income. Even if we qualify as a REIT, we may be subject to certain U.S. federal income and excise taxes and state and local taxes on our income and assets. If we fail to maintain our qualification as a REIT for any taxable year, we may be subject to material penalties as well as federal, state, and local income tax on our taxable income at regular corporate rates and we would not be able to qualify as a REIT for the subsequent four full taxable years. As of September 30, 2021 and December 31, 2020, we were in compliance with all REIT requirements.

Securitization transactions could result in the creation of taxable mortgage pools for federal income tax purposes. As a REIT, so long as we own 100% of the equity interests in a taxable mortgage pool, we generally would not be adversely affected by the characterization of the securitization as a taxable mortgage pool. Certain categories of stockholders, however, such as foreign stockholders eligible for treaty or other benefits, stockholders with net operating losses, and certain tax-exempt stockholders that are subject to unrelated business income tax, or UBTI, could be subject to increased taxes on a portion of their dividend income from us that is attributable to the taxable mortgage pool. We have not made UBTI distributions to our common stockholders and do not intend to make such UBTI distributions in the future.

During the three and nine months ended September 30, 2021, we recorded a current income tax provision of $70,000 and $346,000, respectively, primarily related to activities of our taxable REIT subsidiaries and various state and local taxes. During the three and nine months ended September 30, 2020, we recorded a current income tax provision of $20,000 and $192,000, respectively. We did not have any deferred tax assets or liabilities as of September 30, 2021 or December 31, 2020.

We have net operating losses, or NOLs, generated by our predecessor business that may be carried forward and utilized in current or future periods. As a result of our issuance of 25,875,000 shares of class A common stock in May 2013, the availability of our NOLs is generally limited to $2.0 million per annum by change of control provisions promulgated by the Internal Revenue Service with respect to the ownership of Blackstone Mortgage Trust. As of December 31, 2020, we had estimated NOLs of $159.0 million that will expire in 2029, unless they are utilized by us prior to expiration.

As of September 30, 2021, tax years 2017 through 2020 remain subject to examination by taxing authorities.

14. STOCK-BASED INCENTIVE PLANS

We are externally managed by our Manager and do not currently have any employees. However, as of September 30, 2021, our Manager, certain individuals employed by an affiliate of our Manager, and certain members of our board of directors were compensated, in part, through our issuance of stock-based instruments.

We had stock-based incentive awards outstanding under nine benefit plans as of September 30, 2021. Seven of such benefit plans have expired and no new awards may be issued under them. Under our two current benefit plans, a maximum of 5,000,000 shares of our class A common stock may be issued to our Manager, our directors and officers, and certain employees of affiliates of our Manager. As of September 30, 2021, there were 1,978,860 shares available under our current benefit plans.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share:

	Restricted Class A Common Stock			Weighted-Average Grant Date Fair Value Per Share
Balance as of December 31, 2020		1,627,890		$	33.14
Granted		263,809			26.16
Vested		(718,799	)		33.08
Forfeited		(29,580	)		31.52
Balance as of September 30, 2021		1,143,320		$	31.60

These shares generally vest in installments over a three-year period, pursuant to the terms of the respective award agreements and the terms of our current benefit plans. The 1,143,320 shares of restricted class A common stock outstanding as of September 30, 2021 will vest as follows: 239,145 shares will vest in 2021; 626,395 shares will vest in 2022; and 277,780 shares will vest in 2023. As of September 30, 2021, total unrecognized compensation cost relating to unvested share-based compensation arrangements was $33.6 million based on the grant date fair value of shares granted. This cost is expected to be recognized over a weighted-average period of 1.0 years from September 30, 2021.

15. FAIR VALUES

Assets and Liabilities Measured at Fair Value

The following table summarizes our assets and liabilities measured at fair value on a recurring basis ($ in thousands):

	September 30, 2021								December 31, 2020
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Derivatives	$	—	$	35,858	$	—	$	35,858	$	—	$	522	$	—	$	522
Liabilities
Derivatives	$	—	$	355	$	—	$	355	$	—	$	58,915	$	—	$	58,915

Refer to Note 2 for further discussion regarding fair value measurement.

Fair Value of Financial Instruments

As discussed in Note 2, GAAP requires disclosure of fair value information about financial instruments, whether or not recognized at fair value in the statement of financial position, for which it is practicable to estimate that value.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

The following table details the book value, face amount, and fair value of the financial instruments described in Note 2 ($ in thousands):

	September 30, 2021						December 31, 2020
	Book		Face		Fair		Book		Face		Fair
	Value		Amount		Value		Value		Amount		Value
Financial assets
Cash and cash equivalents	$	211,180	$	211,180	$	211,180	$	289,970	$	289,970	$	289,970
Loans receivable, net		20,276,078		20,522,560		20,358,824		16,399,166		16,652,824		16,447,192
Debt securities held-to-maturity(1)		77,636		79,200		78,633		75,722		79,200		70,127
Financial liabilities
Secured debt, net		11,170,330		11,188,855		11,188,855		7,880,536		7,896,863		7,896,863
Securitized debt obligations, net		2,836,049		2,855,625		2,855,589		2,922,499		2,940,638		2,923,489
Asset-specific debt, net		320,895		328,068		328,068		391,269		399,699		399,699
Term loans, net		1,329,637		1,352,706		1,343,771		1,041,704		1,062,766		1,053,060
Convertible notes, net		618,985		622,500		633,845		616,389		622,500		621,568

(1)   Included in other assets on our consolidated balance sheets.

Estimates of fair value for cash and cash equivalents and convertible notes are measured using observable, quoted market prices, or Level 1 inputs. Estimates of fair value for debt securities held to maturity, securitized debt obligations, and the term loans are measured using observable, quoted market prices, in inactive markets, or Level 2 inputs. All other fair value significant estimates are measured using unobservable inputs, or Level 3 inputs. See Note 2 for further discussion regarding fair value measurement of certain of our assets and liabilities.

16. VARIABLE INTEREST ENTITIES

Consolidated Variable Interest Entities

We have financed a portion of our loans through the CLOs and the 2017 Single Asset Securitization, all of which are VIEs. During the nine months ended September 30, 2021, the 2017 Single Asset Securitization was liquidated upon full repayment of its collateral assets and all senior securities outstanding. Previously, the 2017 Single Asset Securitization was consolidated by us. We are the primary beneficiary of, and therefore consolidate, the CLOs on our balance sheet as we (i) control the relevant interests of the CLOs that give us power to direct the activities that most significantly affect the CLOs, and (ii) have the right to receive benefits and obligation to absorb losses of the CLOs through the subordinate interests we own.

The following table details the assets and liabilities of our consolidated CLOs and 2017 Single Asset Securitization VIEs ($ in thousands):    

	September 30, 2021			December 31, 2020
Assets:
Loans receivable	$	3,475,000		$	3,520,130
Current expected credit loss reserve		(4,044	)		(13,454	)
Loans receivable, net		3,470,956			3,506,676
Other assets		32,406			81,274
Total assets	$	3,503,362		$	3,587,950
Liabilities:
Securitized debt obligations, net	$	2,836,049		$	2,922,499
Other liabilities		1,631			2,104
Total liabilities	$	2,837,680		$	2,924,603

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Assets held by these VIEs are restricted and can be used only to settle obligations of the VIEs, including the subordinate interests owned by us. The liabilities of these VIEs are non-recourse to us and can only be satisfied from the assets of the VIEs. The consolidation of these VIEs results in an increase in our gross assets, liabilities, interest income and interest expense, however it does not affect our stockholders’ equity or net income (loss).

Non-Consolidated Variable Interest Entities

In the third quarter of 2018, we contributed a $517.5 million loan to the $1.0 billion 2018 Single Asset Securitization, which is a VIE, and invested in the related $99.0 million subordinate position. We are not the primary beneficiary of the VIE because we do not have the power to direct the activities that most significantly affect the VIE’s economic performance and, therefore, do not consolidate the 2018 Single Asset Securitization on our balance sheet. We have classified the subordinate position we own as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. Our maximum exposure to loss from the 2018 Single Asset Securitization is limited to our book value of $77.6 million as of September 30, 2021.

We are not obligated to provide, have not provided, and do not intend to provide financial support to these consolidated and non-consolidated VIEs.

17. TRANSACTIONS WITH RELATED PARTIES

We are managed by our Manager pursuant to the Management Agreement, the current term of which expires on December 19, 2021, and will be automatically renewed for a one-year term upon such date and each anniversary thereafter unless earlier terminated.

As of September 30, 2021 and December 31, 2020, our consolidated balance sheets included $19.3 million and $19.2 million of accrued management and incentive fees payable to our Manager, respectively. During the three and nine months ended September 30, 2021, we paid aggregate management and incentive fees of $21.5 million and $59.9 million, respectively, to our Manager, compared to $20.5 million and $59.9 million during the same periods of 2020. During the nine months ended September 30, 2020, we issued 840,696 shares of class A common stock to our Manager in satisfaction of our aggregate $19.3 million of management and incentive fees accrued in the first quarter of 2020. The per share price with respect to such issuance was calculated based on the volume-weighted average price on the NYSE of our class A common stock over the five trading days following our April 29, 2020 first quarter 2020 earnings conference call. In addition, during the three and nine months ended September 30, 2021, we reimbursed our Manager for expenses incurred on our behalf of $141,000 and $325,000, respectively, compared to $416,000 and $839,000 during the same periods of 2020.

As of September 30, 2021, our Manager held 578,914 shares of unvested restricted class A common stock, which had an aggregate grant date fair value of $18.5 million, and vest in installments over three years from the date of issuance. During the three and nine months ended September 30, 2021, we recorded non-cash expenses related to shares held by our Manager of $4.1 million and $12.2 million, respectively, compared to $4.3 million and $12.8 million during the same period of 2020. Refer to Note 14 for further details on our restricted class A common stock.

An affiliate of our Manager is the special servicer of the CLOs. This affiliate did not earn any special servicing fees related to the CLOs during the nine months ended September 30, 2021 or 2020.

During the nine month periods ended September 30, 2021 and 2020, we originated three loans and two loans, respectively, whereby the respective borrowers engaged an affiliate of our Manager to act as title insurance agent in connection with these transactions. We did not incur any expenses or receive any revenues as a result of these transactions.

During the three and nine months ended September 30, 2021, we incurred $100,000 and $291,000, respectively, of expenses for various administrative, compliance, and capital market data services to third-party service providers that are affiliates of our Manager, compared to $98,000 and $369,000 during the same periods of 2020.

In the third quarter of 2021, we originated $246.6 million of a total $503.3 million senior loan to an unaffiliated third-party, which was part of a total financing that included a mezzanine loan originated by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under our loan, including voting rights, so long as any Blackstone-advised investment vehicle controls the mezzanine loan. The senior loan terms, with respect to the mezzanine lender, were negotiated by a third party without our involvement and our 49% interest in the senior loan was made on such market terms.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

In the third quarter of 2021, we acquired an aggregate £186.0 million of a total £379.6 million senior loan to a borrower that is majority owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by the original lender prior to our acquisition of the loan without our involvement, and we acquired the loan on such market terms.

In the third quarter of 2021, we co-originated $243.6 million of an aggregate $974.5 million senior loan as part of a broadly marketed process. A Blackstone-advised investment vehicle co-originated an additional $243.6 million of the loan and unaffiliated third-parties co-originated the remaining $487.3 million of the loan. The loan proceeds were used by the borrower to repay an existing loan previously owned by us.

In the third and fourth quarter of 2019, we acquired an aggregate €250.0 million of a total €1.6 billion senior loan to a borrower that is partially owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by third parties without our involvement and our 16% interest in the senior loan was made on such market terms. In the second quarter of 2021, we acquired an additional €100.0 million interest in the senior loan from an unaffiliated lender, bringing our total interest to 22% of the aggregate senior loan.

In the second quarter of 2021, we acquired an aggregate €50.0 million of a total €491.0 million senior loan to a borrower that is majority owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by the original lenders prior to our acquisition of the loan without our involvement and our 10% interest in the senior loan was made on such market terms.

In the second quarter of 2021 and 2020, certain Blackstone-advised investment vehicles acquired an aggregate $20.0 million participation, or 5%, of the initial aggregate B-2 Term Loan as a part of a broad syndication lead-arranged by JP Morgan. Blackstone Securities Partners L.P., an affiliate of our Manager, was engaged as a book-runner for the transaction and received aggregate fees of $350,000 in such capacity. Both of these transactions were on terms equivalent to those of unaffiliated parties.

In the first quarter of 2021 and second quarter and fourth quarter of 2019, certain Blackstone-advised investment vehicles acquired an aggregate $65.5 million participation, or 7%, of the initial aggregate B-1 Term Loan as a part of a broad syndication lead-arranged by JP Morgan. Blackstone Securities Partners L.P., an affiliate of our Manager, was engaged as a book-runner for the transactions and received aggregate fees of $950,000 in such capacity. Both of these transactions were on terms equivalent to those of unaffiliated parties.

In the first quarter of 2021, we acquired an SEK 5.0 billion interest in a total SEK 10.2 billion senior loan to a borrower that is wholly owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as we are an affiliate of the borrower. The senior loan terms were negotiated by a third party without our involvement and our 49% interest in the senior loan was made on such market terms.

In the first quarter of 2020, we acquired a $140.0 million interest in a total $421.5 million senior loan to a borrower that is partially owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as we are an affiliate of the borrower. The senior loan terms were negotiated by third parties without our involvement and our 33% interest in the senior loan was made on such market terms.

18. COMMITMENTS AND CONTINGENCIES

Impact of COVID-19

As further discussed in Note 2, the full extent of the impact of COVID-19 on the global economy generally, and our business in particular, is uncertain. As of September 30, 2021, no contingencies have been recorded on our consolidated balance sheet as a result of COVID-19, however as the global pandemic continues and if the economic implications worsen, it may have long-term impacts on our financial condition, results of operations, and cash flows. Refer to Note 2 for further discussion of COVID-19.

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Blackstone Mortgage Trust, Inc.

Notes to Consolidated Financial Statements (continued)

(Unaudited)

Unfunded Commitments Under Loans Receivable

As of September 30, 2021, we had aggregate unfunded loan commitments of $4.2 billion across 108 loans receivable, and $2.6 billion of committed or identified financings for those commitments, resulting in net unfunded commitments of $1.6 billion. The unfunded loan commitments comprise funding for capital expenditures and construction, leasing costs, and interest and carry costs, and their funding will vary depending on the progress of capital projects, leasing, and cash flows at the properties securing our loans. Therefore, the exact timing and amounts of such future loan fundings are uncertain and will depend on the current and future performance of the underlying collateral assets. We expect to fund our loan commitments over the remaining term of the related loans, which have a weighted-average future funding period of 3.2 years.

Principal Debt Repayments

Our contractual principal debt repayments as of September 30, 2021 were as follows ($ in thousands):

	Secured		Asset-Specific		Term		Convertible
Year	Debt(1)		Debt(1)		Loans(2)		Notes(3)		Total(4)
2021 (remainder of the year)	$	130,668	$	—	$	3,436	$	—	$	134,104
2022		228,030		—		13,738		402,500		644,268
2023		1,834,836		149,896		13,738		220,000		2,218,470
2024		3,937,001		—		13,738		—		3,950,739
2025		1,231,023		178,172		13,738		—		1,422,933
2026		3,725,205		—		1,294,318		—		5,019,523
Thereafter		102,092		—		—		—		102,092
Total obligation	$	11,188,855	$	328,068	$	1,352,706	$	622,500	$	13,492,129

(1) The allocation of repayments under our secured debt and asset-specific debt is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower.

(2) The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the principal balance due in quarterly installments. Refer to Note 8 for further details on our term loans.

(3) Reflects the outstanding principal balance of Convertible Notes, excluding any potential conversion premium. Refer to Note 9 for further details on our Convertible Notes.

(4) Total does not include $2.9 billion of consolidated securitized debt obligations, $997.6 million of non-consolidated senior interests, and $414.1 million of non-consolidated securitized debt obligations, as the satisfaction of these liabilities will not require cash outlays from us.

Board of Directors’ Compensation

As of September 30, 2021, of the nine members of our board of directors, our six independent directors are entitled to annual compensation of $210,000 each, of which $95,000 will be paid in the form of cash and $115,000 will be paid in the form of deferred stock units or, beginning in 2022, at their election, shares of restricted common stock. The other three board members, including our chairman and our chief executive officer, are not compensated by us for their service as directors. In addition, (i) the chairs of our audit, compensation, and corporate governance committees receive additional annual cash compensation of $20,000, $15,000, and $10,000, respectively and (ii) the members of our audit and investment risk management committees receive additional annual cash compensation of $10,000 and $7,500, respectively.

Litigation

From time to time, we may be involved in various claims and legal actions arising in the ordinary course of business. As of September 30, 2021, we were not involved in any material legal proceedings.

19. SUBSEQUENT EVENTS

On October 5, 2021, we issued $400.0 million aggregate principal amount of 3.75% senior secured notes due 2027, or Secured Notes. The Secured Notes were issued at par and have a maturity date of January 15, 2027. Blackstone Securities Partners L.P., an affiliate of our Manager, served as an initial purchaser for the Secured Notes offering and received compensation of $400,000 in connection therewith.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

References herein to “Blackstone Mortgage Trust,” “Company,” “we,” “us,” or “our” refer to Blackstone Mortgage Trust, Inc. and its subsidiaries unless the context specifically requires otherwise.

The following discussion should be read in conjunction with the unaudited consolidated financial statements and notes thereto appearing elsewhere in this quarterly report on Form 10-Q. In addition to historical data, this discussion contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which reflect our current views with respect to, among other things, our business, operations and financial performance. You can identify these forward-looking statements by the use of words such as “intend,” “goal,” “estimate,” “expect,” “project,” “projections,” “plans,” “seeks,” “anticipates,” “should,” “could,” “may,” “designed to,” “foreseeable future,” “believe,” “scheduled,” and similar expressions. Such forward-looking statements are subject to various risks, uncertainties and assumptions. Our actual results or outcomes may differ materially from those in this discussion as a result of various factors, including but not limited to those discussed in Item 1A. Risk Factors in our annual report on Form 10-K for the year ended December 31, 2020 and elsewhere in this quarterly report on Form 10-Q.

Introduction

Blackstone Mortgage Trust is a real estate finance company that originates senior loans collateralized by commercial real estate in North America, Europe, and Australia. Our portfolio is composed primarily of loans secured by high-quality, institutional assets in major markets, sponsored by experienced, well-capitalized real estate investment owners and operators. These senior loans are capitalized by accessing a variety of financing options, including borrowing under our credit facilities, issuing CLOs or single-asset securitizations, and syndicating senior loan participations, depending on our view of the most prudent financing option available for each of our investments. We are not in the business of buying or trading securities, and the only securities we own are the retained interests from our securitization financing transactions, which we have not financed. We are externally managed by BXMT Advisors L.L.C., or our Manager, a subsidiary of Blackstone Inc., or Blackstone, and are a real estate investment trust, or REIT, traded on the New York Stock Exchange, or NYSE, under the symbol “BXMT.”

We benefit from the deep knowledge, experience and information advantages of our Manager, which is a part of Blackstone’s real estate platform. Blackstone Real Estate is one of the largest owners and operators of real estate in the world, with a proven track record of successfully navigating market cycles and emerging stronger through periods of volatility. The market-leading real estate expertise derived from the strength of the Blackstone platform deeply informs our credit and underwriting process, and we believe gives us the tools to expertly manage the assets in our portfolio and work with our borrowers throughout periods of economic stress and uncertainty.

We conduct our operations as a REIT for U.S. federal income tax purposes. We generally will not be subject to U.S. federal income taxes on our taxable income to the extent that we annually distribute all of our net taxable income to stockholders and maintain our qualification as a REIT. We also operate our business in a manner that permits us to maintain an exclusion from registration under the Investment Company Act of 1940, as amended. We are organized as a holding company and conduct our business primarily through our various subsidiaries.

Recent Developments  

COVID-19

The novel coronavirus, or COVID-19 has significantly impacted the global economy since the beginning of 2020 and has, among other things, created disruption in global supply chains, impacted the job market and adversely impacted many industries, including industries related to the collateral underlying certain of our loans. During the nine months ended September 30, 2021, the global economy has, with certain setbacks, begun reopening and wider distribution of vaccines and easing of travel and other restrictions appear to be encouraging greater economic activity. Nonetheless, the recovery could remain uneven, particularly given uncertainty with respect to the distribution and acceptance of the vaccines and their effectiveness with respect to new variants of the virus. As a result, we are still unable to predict when normal economic activity and business operations will fully resume.

The outbreak of COVID-19 and its impact on the current financial, economic and capital markets environment, and future developments in these and other areas present uncertainty and risk with respect to our financial condition, results of operations, liquidity, and ability to pay distributions. Countries around the world continue to grapple with the

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economic impacts of the COVID-19 pandemic and its aftereffects. Although a recovery is partially underway, it continues to be gradual, uneven and characterized by meaningful dispersion across sectors and regions, and could be hindered by persistent or resurgent infection rates and by related travel and other restrictions. The most recent round of U.S. fiscal stimulus could provide meaningful support, along with continued accommodative monetary policy and wider distribution of vaccines. Issues with respect to the distribution and acceptance of vaccines or the spread of new variants of the virus could adversely impact the recovery. Overall, there remains significant uncertainty regarding the timing and duration of the economic recovery, which precludes any prediction as to the ultimate adverse impact of COVID-19 on economic and market conditions.

Reference Rate Reform

LIBOR and certain other floating rate benchmark indices to which our floating rate loans and other loan agreements are tied, including, without limitation, the Euro Interbank Offered Rate, or EURIBOR, the Stockholm Interbank Offered Rate, or STIBOR, the Canadian Dollar Offered Rate, or CDOR, and the Australian Bank Bill Swap Reference Rate, or BBSY, or collectively, IBORs, are the subject of recent national, international and regulatory guidance and proposals for reform. On March 5, 2021, the Financial Conduct Authority of the U.K., or FCA, which has statutory powers to require panel banks to contribute to LIBOR where necessary, announced it would cease publication of certain IBORs, including one-week and two-month USD LIBOR and all tenors of GBP LIBOR, immediately after December 31, 2021 and cease the publication of the remaining tenors of USD LIBOR immediately after June 30, 2023. Additionally, the Federal Reserve Board, Federal Deposit Insurance Corporation, Office of the Comptroller of Currency, and other interagency regulatory bodies have advised U.S. banks to stop entering into new USD LIBOR based contracts by December 31, 2021.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate, or SOFR, a new index calculated using short-term repurchase agreements backed by Treasury securities, as its preferred alternative rate for USD LIBOR. In the U.K., the Bank of England’s working group on Sterling risk free rates set March 31, 2021 as the target date under which GBP LIBOR may no longer be used as the reference rate for new loan products with maturities after December 31, 2021. Market participants have started to transition to the Sterling Overnight Index Average, or SONIA, in line with guidance from the U.K. regulators. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment. Additionally, as of September 30, 2021, daily compounded SONIA is utilized as the floating benchmark rate on five of our loans and two of our credit facilities.

At this time, it is not possible to predict how markets will respond to SOFR, SONIA, or other alternative reference rates as the transition away from USD LIBOR and GBP LIBOR proceeds. Despite the LIBOR transition in other markets, benchmark rate methodologies in Europe, Canada, and Australia have been reformed and rates such as EURIBOR, STIBOR, CDOR, and BBSY may persist as International Organization of Securities Commissions, or IOSCO, compliant reference rates moving forward. However, multi-rate environments may persist in these markets as regulators and working groups have suggested market participants adopt alternative reference rates.

Refer to “Part I. Item 1A. Risk Factors—Risks Related to Our Lending and Investment Activities—The expected discontinuation of currently used financial reference rates and use of alternative replacement reference rates may adversely affect net interest income related to our loans and investments or otherwise adversely affect our results of operations, cash flows and the market value of our investments.” of our Annual Report on Form 10-K filed with the SEC on February 10, 2021.

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I. Key Financial Measures and Indicators

As a real estate finance company, we believe the key financial measures and indicators for our business are earnings per share, dividends declared, Distributable Earnings, and book value per share. For the three months ended September 30, 2021 we recorded earnings per share of $0.56, declared a dividend of $0.62 per share, and reported $0.63 per share of Distributable Earnings. In addition, our book value as of September 30, 2021 was $26.92 per share, which is net of a $0.86 cumulative CECL reserve.

As further described below, Distributable Earnings is a measure that is not prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, which helps us to evaluate our performance excluding the effects of certain transactions and GAAP adjustments that we believe are not necessarily indicative of our current loan portfolio and operations. In addition, Distributable Earnings is a performance metric we consider when declaring our dividends.    

Earnings Per Share and Dividends Declared

The following table sets forth the calculation of basic and diluted net income per share and dividends declared per share ($ in thousands, except per share data):

	Three Months Ended
	September 30, 2021		June 30, 2021
Net income(1)	$	83,757	$	131,595
Weighted-average shares outstanding, basic and diluted		149,214,819		147,342,822
Net income per share, basic and diluted	$	0.56	$	0.89
Dividends declared per share	$	0.62	$	0.62

(1) Represents net income attributable to Blackstone Mortgage Trust.

Distributable Earnings

Distributable Earnings is a non-GAAP measure, which we define as GAAP net income (loss), including realized gains and losses not otherwise recognized in current period GAAP net income (loss), and excluding (i) non-cash equity compensation expense, (ii) depreciation and amortization, (iii) unrealized gains (losses), and (iv) certain non-cash items. Distributable Earnings may also be adjusted from time to time to exclude one-time events pursuant to changes in GAAP and certain other non-cash charges as determined by our Manager, subject to approval by a majority of our independent directors. Distributable Earnings mirrors the terms of our management agreement between our Manager and us, or our Management Agreement, for purposes of calculating our incentive fee expense.

During the nine months ended September 30, 2021, we recorded a $49.4 million decrease in the CECL reserve, which has been excluded from Distributable Earnings consistent with other unrealized gains (losses) pursuant to our existing policy for reporting Distributable Earnings. We expect to only recognize such potential credit losses in Distributable Earnings if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected. The realized loss amount reflected in Distributable Earnings will equal the difference between the cash received, or expected to be received, and the book value of the asset, and is reflective of our economic experience as it relates to the ultimate realization of the loan.

We believe that Distributable Earnings provides meaningful information to consider in addition to our net income (loss) and cash flow from operating activities determined in accordance with GAAP. We believe Distributable Earnings is a useful financial metric for existing and potential future holders of our class A common stock as historically, over time, Distributable Earnings has been a strong indicator of our dividends per share. As a REIT, we generally must distribute annually at least 90% of our net taxable income, subject to certain adjustments, and therefore we believe our dividends are one of the principal reasons stockholders may invest in our class A common stock. Refer to Note 13 to our consolidated financial statements for further discussion of our distribution requirements as a REIT. Further, Distributable Earnings helps us to evaluate our performance excluding the effects of certain transactions and GAAP adjustments that we believe are not necessarily indicative of our current loan portfolio and operations, and is a performance metric we consider when declaring our dividends.

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Distributable Earnings does not represent net income (loss) or cash generated from operating activities and should not be considered as an alternative to GAAP net income (loss), or an indication of our GAAP cash flows from operations, a measure of our liquidity, or an indication of funds available for our cash needs. In addition, our methodology for calculating Distributable Earnings may differ from the methodologies employed by other companies to calculate the same or similar supplemental performance measures, and accordingly, our reported Distributable Earnings may not be comparable to the Distributable Earnings reported by other companies.

The following table provides a reconciliation of Distributable Earnings to GAAP net income ($ in thousands, except per share data):

	Three Months Ended
	September 30, 2021			June 30, 2021
Net income(1)	$	83,757		$	131,595
Increase (decrease) in current expected credit loss reserve		2,767			(50,906	)
Non-cash compensation expense		8,080			8,020
Realized hedging and foreign currency (loss) income, net(2)		(768	)		744
Other items		116			194
Adjustments attributable to non-controlling interests, net		(39	)		248
Distributable Earnings	$	93,913		$	89,895
Weighted-average shares outstanding, basic and diluted		149,214,819			147,342,822
Distributable Earnings per share, basic and diluted	$	0.63		$	0.61

(1) Represents net income attributable to Blackstone Mortgage Trust.

(2) Represents realized gains and losses on the repatriation of unhedged foreign currency. These amounts are not included in GAAP net income, but rather as a component of Other Comprehensive Income in our consolidated financial statements.

Book Value Per Share

The following table calculates our book value per share ($ in thousands, except per share data):

	September 30, 2021		June 30, 2021
Stockholders’ equity	$	4,236,550	$	3,930,961
Shares
Class A common stock		157,015,689		147,015,818
Deferred stock units		356,700		328,065
Total outstanding		157,372,389		147,343,883
Book value per share	$	26.92	$	26.68

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II. Loan Portfolio

During the quarter ended September 30, 2021, we originated or acquired $4.7 billion of loans. Loan fundings during the quarter totaled $3.9 billion, including $89.0 million of non-consolidated senior interests. Loan repayments and sales during the quarter totaled $886.2 million, including $213.4 million of loans held by our non-consolidated securitized debt obligations and our non-consolidated senior interests. We generated interest income of $200.1 million and incurred interest expense of $82.7 million during the quarter, which resulted in $117.4 million of net interest income during the three months ended September 30, 2021.

Portfolio Overview

The following table details our loan origination activity ($ in thousands):

	Three Months Ended			Nine Months Ended
	September 30, 2021			September 30, 2021
Loan originations(1)	$	4,704,489		$	8,604,600
Loan fundings(2)	$	3,902,460		$	7,734,135
Loan repayments and sales(3)		(886,180	)		(3,678,372	)
Total net (repayments) fundings	$	3,016,280		$	4,055,763

(1) Includes new loan originations and additional commitments made under existing loans.

(2) Loan fundings during the three and nine months ended September 30, 2021 include $89.0 million and $284.6 million, respectively, of additional fundings under related non-consolidated senior interests.

(3) Loan repayments and sales during the three and nine months ended September 30, 2021 include $213.4 million and $327.3 million, respectively, of additional repayments or reduction of loan exposure of loans held by our non-consolidated securitized debt obligations and our non-consolidated senior interests.

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The following table details overall statistics for our investment portfolio as of September 30, 2021 ($ in thousands):    

				Total Investment Exposure
	Balance Sheet Portfolio(1)			Loan Exposure(1)(2)			Other Investments(3)			Total Investment Portfolio
Number of investments		156			156			1			157
Principal balance	$	20,522,560		$	21,520,167		$	493,283		$	22,013,450
Net book value	$	20,276,078		$	20,276,078		$	77,636		$	20,353,714
Unfunded loan commitments(4)	$	4,220,214		$	4,737,564		$	—		$	4,737,564
Weighted-average spread(5)		+ 3.18	%		+ 3.22	%		+ 2.75	%		+ 3.22	%
Weighted-average all-in yield(5)		+ 3.51	%		+ 3.55	%		+ 2.98	%		+ 3.54	%
Weighted-average maximum maturity (years)(6)		3.3			3.3			3.7			3.3
Origination loan to value (LTV)(7)		65.5	%		65.6	%		42.6	%		65.1	%

(1)	Excludes investment exposure to the $79.2 million subordinate position we own in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(2)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests that are not included in our balance sheet portfolio.
(3)	Includes investment exposure to the $493.3 million 2018 Single Asset Securitization. We do not consolidate the 2018 Single Asset Securitization on our consolidated financial statements, and instead reflect our $79.2 million subordinate position as a component of other assets on our consolidated balance sheet. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(4)	Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date.
(5)	The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable to each investment. As of September 30, 2021, 98% of our investments by total investment exposure earned a floating rate of interest, primarily indexed to USD LIBOR. The other 2% of our investments earned a fixed rate of interest, which we reflect as a spread over the relevant floating benchmark rates, as of September 30, 2021, for purposes of the weighted-averages. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.
(6)	Maximum maturity assumes all extension options are exercised by the borrower, however our loans and other investments may be repaid prior to such date. As of September 30, 2021, 45% of our loans and other investments by total investment exposure were subject to yield maintenance or other prepayment restrictions and 55% were open to repayment by the borrower without penalty.
(7)	Based on LTV as of the dates loans and other investments were originated or acquired by us.

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The following table details the index rate floors for our loans receivable portfolio as of September 30, 2021 ($ in thousands):

	Loans Receivable Principal Balance
Index rate floors	USD		Non-USD(1)		Total
Fixed rate	$	—	$	344,370	$	344,370
0.00% or no floor(2)		3,265,850		4,912,696		8,178,546
0.01% to 0.24% floor		3,910,133		112,026		4,022,159
0.25% to 0.99% floor		1,363,685		271,616		1,635,301
1.00% or more floor		6,794,344		545,447		7,339,791
Total(3)(4)(5)	$	15,334,012	$	6,186,155	$	21,520,167

(1)	Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, and Canadian Dollar Currencies.
(2)	Includes $338.7 million of loans accounted for under the cost-recovery method.
(3)	Excludes investment exposure to the $79.2 million subordinate position we own in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(4)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests that are not included in our balance sheet portfolio.
(5)	As of September 30, 2021, the weighted-average index rate floor of our loan portfolio was 0.58%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.94%.

The following table details the floating benchmark rates for our investment portfolio as of September 30, 2021 (total investment portfolio amounts in thousands):

Investment Count	Currency	Total Investment Portfolio		Floating Rate Index(1)	Cash Coupon(2)	All-in Yield(2)
128	$	$	15,827,294	USD LIBOR	+ 3.14%	+ 3.45%
10	€	€	2,866,354	EURIBOR	+ 3.02%	+ 3.39%
14	£	£	1,524,699	GBP LIBOR / SONIA(3)	+ 4.01%	+ 4.35%
1	kr	kr	4,990,212	STIBOR	+ 3.20%	+ 3.41%
2	A$	A$	243,731	BBSY	+ 4.21%	+ 4.48%
2	C$	C$	84,784	CDOR	+ 3.78%	+ 4.18%
157		$	22,013,450	Applicable Index	+ 3.22%	+ 3.54%

(1) We use foreign currency forward contracts to protect the value or fix the amount of certain investments or cash flows in terms of the U.S. dollar. We earn forward points on our forward contracts that reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the foreign currency rate exposure for such investments to USD LIBOR.

(2) The cash coupon and all-in yield of our fixed rate loans are reflected as a spread over USD LIBOR for purposes of the weighted-averages. In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.

(3) As of September 30, 2021, £917.6 million and £373.1 million of loans were indexed to GBP LIBOR and SONIA, respectively. The remaining £234.0 million of our British Pound Sterling loans are fixed rate. As of September 30, 2021, three-month GBP LIBOR was 0.08% and SONIA was 0.05%.

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The charts below detail the geographic distribution and types of properties securing our investment portfolio, as of September 30, 2021:

Refer to section VI of this Item 2 for details of our loan portfolio, on a loan-by-loan basis.

Portfolio Management

During the three months ended September 30, 2021, we collected 100% of the contractual interest payments that were due under our loans, with virtually no interest deferrals, including with respect to loans collateralized by hospitality assets, which we believe demonstrates the overall strength of our loan portfolio and the commitment and financial wherewithal of our borrowers generally, which are primarily affiliated with large real estate private equity funds and other strong, well-capitalized, experienced sponsors.

We maintain a robust asset management relationship with our borrowers and have utilized these relationships to address the potential impacts of the COVID-19 pandemic on our loans secured by properties experiencing cash flow pressure, most significantly hospitality assets. We are generally encouraged by our borrowers’ response to the COVID-19 pandemic’s impacts on their properties. With limited exceptions, we believe our loan sponsors are committed to supporting assets collateralizing our loans through additional equity investments, and that we will benefit from our long-standing core business model of originating senior loans collateralized by large assets in major markets with experienced, well-capitalized institutional sponsors. Our investment portfolio’s low origination weighted-average LTV of 65.1% as of September 30, 2021 reflects significant equity value that our sponsors are motivated to protect through periods of cyclical disruption. While we believe the principal amounts of our loans are generally adequately protected by underlying collateral value, there is a risk that we will not realize the entire principal value of certain investments.

Our Manager’s portfolio monitoring and asset management operations benefit from the deep knowledge, experience, and information advantages derived from its position as part of Blackstone’s real estate platform. Blackstone Real Estate is one of the largest owners and operators of real estate in the world, with a proven track record of successfully navigating market cycles and emerging stronger through periods of volatility. The market-leading real estate expertise derived from the strength of the Blackstone platform deeply informs our credit and underwriting process, and gives us the tools to expertly asset manage our portfolio and work with our borrowers throughout periods of economic stress and uncertainty.

As discussed in Note 2 to our consolidated financial statements, our Manager performs a quarterly review of our loan portfolio, assesses the performance of each loan, and assigns it a risk rating between “1” and “5,” from less risk to greater risk. The weighted-average risk rating of our total loan exposure was 2.8 and 3.0 as of September 30, 2021 and December 31, 2020, respectively. The decrease in risk rating reflects the ongoing recovery from COVID-19 and the improvement of our portfolio’s credit.

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The following table allocates the principal balance and total loan exposure balances based on our internal risk ratings ($ in thousands):

	September 30, 2021
Risk	Number	Net Book			Total Loan
Rating	of Loans	Value			Exposure(1)(2)
1	8	$	931,330		$	931,831
2	27		4,800,884			4,836,029
3	110		12,060,623			13,129,870
4	9		2,276,394			2,283,701
5	2		337,235			338,736
Loans receivable	156	$	20,406,466		$	21,520,167
CECL reserve			(130,388	)
Loans receivable, net		$	20,276,078

(1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 to our consolidated financial statements for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests as of September 30, 2021.

(2) Excludes investment exposure to the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for details of the subordinate position we own in the 2018 Single Asset Securitization.

Current Expected Credit Loss Reserve

The CECL reserve required by GAAP reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. Other than a few narrow exceptions, GAAP requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors.

During the nine months ended September 30, 2021, we recorded an aggregate $49.4 million decrease in the CECL reserve related to loans receivable, debt securities, and unfunded loan commitments, bringing our total reserve to $135.9 million as of September 30, 2021. This CECL reserve reflects the macroeconomic impact of the COVID-19 pandemic on commercial real estate markets generally, as well as certain loans assessed for impairment in our portfolio. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. Further, this reserve is not reflective of what we expect our CECL reserve would be absent the current and potential future impacts of the COVID-19 pandemic. See Notes 2 and 3 to our consolidated financial statements for further discussion of our CECL reserve.

During 2020 and 2021, we entered into loan modifications related to a multifamily asset in New York City, which are classified as troubled debt restructurings under GAAP. During the three months ended June 30, 2020, we recorded a $14.8 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $52.4 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

During 2020, we entered into a loan modification related to a hospitality asset in New York City, which is classified as a troubled debt restructuring under GAAP. During the three months ended June 30, 2020, we recorded a $54.9 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $286.3 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

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As of July 1, 2020, the income accrual was suspended on the two loans detailed above, which had an aggregate outstanding principal balance of $338.7 million, as of September 30, 2021. No income was recorded on these loans during the three months ended September 30, 2021.

Multifamily Joint Venture

As of September 30, 2021, our Multifamily Joint Venture held $817.9 million of loans, which are included in the loan disclosures above. Refer to Note 2 to our consolidated financial statements for additional discussion of our Multifamily Joint Venture.

Portfolio Financing

Our portfolio financing consists of secured debt, securitizations, and asset-specific financings. The following table details our portfolio financing ($ in thousands):

	Portfolio Financing
	Outstanding Principal Balance
	September 30, 2021		December 31, 2020
Secured debt	$	11,188,855	$	7,896,863
Securitizations(1)		3,269,708		3,596,980
Asset-specific financings(2)		1,325,674		1,201,495
Total portfolio financing	$	15,784,237	$	12,695,338

(1) Includes our consolidated securitized debt obligations of $2.9 billion and our non-consolidated securitized debt obligations of $414.1 million as of September 30, 2021, and our consolidated securitized debt obligations of $2.9 billion and our non-consolidated securitized debt obligations of $656.3 million as of December 31, 2020. The non-consolidated securitized debt obligation represents the senior non-consolidated investment exposure to the 2018 Single Asset Securitization. We own the related subordinate position, which is classified as a held-to-maturity debt security on our balance sheet. Refer to Notes 4 and 16 to our consolidated financial statements for details of the 2018 Single Asset Securitization.

(2) Includes our consolidated asset-specific debt of $328.1 million and our non-consolidated senior interests of $997.6 million as of September 30, 2021, and our consolidated asset-specific debt of $399.7 million and our non-consolidated senior interests of $801.8 million as of December 31, 2020. The non-consolidated senior interests provide structural leverage for our net investments which are reflected in the form of mezzanine loans or other subordinate interests on our balance sheet and in our results of operations.

Secured Debt

The following table details our outstanding secured debt ($ in thousands):

	Secured Debt
	Borrowings Outstanding
	September 30, 2021		December 31, 2020
Secured credit facilities	$	11,188,855	$	7,896,863
Acquisition facility		—		—
Total secured debt	$	11,188,855	$	7,896,863

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Secured Credit Facilities

The following table details the spread of our secured credit facilities as of September 30, 2021 ($ in thousands):    

	Nine Months Ended
	September 30, 2021		September 30, 2021
			Total		Wtd. Avg.					Wtd. Avg.			Net Interest
Spread(1)	New Financings(2)		Borrowings		All-in Cost(1)(3)(4)			Collateral(5)		All-in Yield(1)(6)			Margin(7)
+ 1.50% or less	$	3,065,115	$	6,288,807		+ 1.54	%	$	8,176,251		+ 3.09	%		+ 1.55	%
+ 1.51% to + 1.75%		1,268,796		2,780,867		+ 1.88	%		3,851,597		+ 3.40	%		+ 1.52	%
+ 1.76% to + 2.00%		479,767		897,258		+ 2.08	%		1,253,906		+ 3.95	%		+ 1.87	%
+ 2.01% or more		465,872		1,221,923		+ 2.42	%		1,977,237		+ 4.42	%		+ 2.00	%
Total	$	5,279,550	$	11,188,855		+ 1.77	%	$	15,258,991		+ 3.41	%		+ 1.64	%

(1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable.

(2) Represents borrowings outstanding as of September 30, 2021, for new financings during the nine months ended September 30, 2021, based on the date collateral was initially pledged to each credit facility.

(3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings.

(4) Represents the weighted-average all-in cost as of September 30, 2021 and is not necessarily indicative of the spread applicable to recent or future borrowings.

(5) Represents the principal balance of the collateral assets.

(6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees.

(7) Represents the difference between the weighted-average all-in yield and weighted average all in cost.

Acquisition Facility

We have a $250.0 million full recourse secured credit facility that is designed to finance eligible first mortgage originations for up to nine months as a bridge to term financing without obtaining discretionary lender approval. The maturity date of the facility is April 4, 2023.

Securitizations

The following table details our outstanding securitizations ($ in thousands):

	Securitizations Outstanding
	September 30, 2021		December 31, 2020
Securitized debt obligations	$	2,855,625	$	2,940,638
Non-consolidated securitized debt obligation(1)		414,083		656,342
Total securitizations	$	3,269,708	$	3,596,980

(1)   These non-consolidated securitized debt obligations represent the senior non-consolidated investment exposure to the 2018 Single Asset Securitization. We own the related subordinate position, which is classified as a held-to-maturity debt security on our balance sheet. Refer to Notes 4 and 16 to our consolidated financial statements for details of the 2018 Single Asset Securitization.

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Securitized Debt Obligations

We have financed certain pools of our loans through collateralized loan obligations, which include the 2021 FL4 CLO, 2020 FL3 CLO, and 2020 FL2 CLO, or collectively, the CLOs. The following table details our securitized debt obligations ($ in thousands):

	September 30, 2021
Securitized Debt Obligations	Count		Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2021 FL4 Collateralized Loan Obligation
Collateral assets		35	$	1,000,000	$	1,000,000		+ 3.41	%		July 2024
Financing provided		1		803,750		796,864		+ 1.65	%		May 2038
2020 FL3 Collateralized Loan Obligation
Collateral assets		21		1,000,000		1,000,000		+ 3.02	%		April 2024
Financing provided		1		808,750		803,378		+ 2.10	%		November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets		24		1,500,000		1,500,000		+ 3.10	%		March 2024
Financing provided		1		1,243,125		1,235,807		+ 1.45	%		February 2038
Total
Collateral assets		80	$	3,500,000	$	3,500,000		+ 3.17	%
Financing provided(4)		3	$	2,855,625	$	2,836,049		+ 1.69	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and SOFR, as applicable to each securitized debt obligation. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	During the three and nine months ended September 30, 2021, we recorded $10.7 million and $35.2 million, respectively, of interest expense related to our securitized debt obligations.

Refer to Notes 6 and 16 to our consolidated financial statements for additional details of our securitized debt obligations.

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Non-Consolidated Securitized Debt Obligation

In the third quarter of 2018, we contributed a senior loan to the 2018 Single Asset Securitization, and invested in the related subordinate position. We do not consolidate the 2018 Single Asset Securitization on our balance sheet. The non-consolidated securitized debt obligation provides structural leverage for our net investment which is reflected as a held-to-maturity debt security and is included in other assets on our consolidated balance sheets. The following table details our non-consolidated securitized debt obligations ($ in thousands):

	September 30, 2021
Non-Consolidated Securitized Debt Obligation	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	1	$	493,283		n / a		+ 2.98	%		June 2025
Financing provided	1	$	414,083		n / a		+ 2.45	%		June 2035

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts.
(2)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of non-consolidated securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.

Asset-Specific Financings

The following table details our outstanding asset-specific financings ($ in thousands):

	Asset-Specific Financings
	Outstanding Principal Balance
	September 30, 2021		December 31, 2020
Asset-specific debt	$	328,068	$	399,699
Non-consolidated senior interests(1)		997,606		801,796
Total asset-specific financings	$	1,325,674	$	1,201,495

(1)   These non-consolidated senior interests provide structural leverage for our net investments which are reflected in the form of mezzanine loans or other subordinate interests on our balance sheet and in our results of operations.

Asset-Specific Debt

The following table details our asset-specific debt ($ in thousands):

	September 30, 2021
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	3	$	436,562	$	424,650		+ 4.34	%		Dec. 2024
Financing provided	3	$	328,068	$	320,895		+ 3.13	%		Dec. 2024

(1)	These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs.
(2)	The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific financings is term-matched to the corresponding collateral loans.

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Non-Consolidated Senior Interests

In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. These non-consolidated senior interests provide structural leverage for our net investments which are reflected in the form of mezzanine loans or other subordinate interests on our balance sheet and in our results of operations.

The following table details the subordinate interests retained on our balance sheet and the related non-consolidated senior interests ($ in thousands):

	September 30, 2021
Non-Consolidated Senior Interests	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term
Total loan	4	$	1,241,327		n / a		+ 4.43	%		Nov. 2024
Senior participation	4	$	997,606		n / a		+ 3.19	%		Nov. 2024

(1) The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and GBP LIBOR, as applicable to each investment. As of September 30, 2021, 73% of these loans’ total investment exposure earned a floating rate of interest indexed to USD LIBOR. The other 27% of our investments earned a fixed rate of interest, which we reflect as a spread over GBP LIBOR, as of September 30, 2021, for purposes of the weighted-averages. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees.

Corporate Financing

The following table details our outstanding corporate financing ($ in thousands):

	Corporate Financing
	Outstanding Principal Balance
	September 30, 2021		December 31, 2020
Term loans	$	1,352,706	$	1,062,766
Convertible notes		622,500		622,500
Total corporate financing	$	1,975,206	$	1,685,266

Term Loans

As of September 30, 2021, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands):

Term Loans	Face Value		Interest Rate(1)			All-in Cost(1)(2)			Maturity
B-1 Term Loan	$	932,256		+ 2.25	%		+ 2.53	%		April 23, 2026
B-2 Term Loan	$	420,450		+ 2.75	%		+ 3.42	%		April 23, 2026

(1)	The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%.
(2)	Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.

Refer to Notes 2 and 8 to our consolidated financial statements for additional discussion of our Term Loans.

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Convertible Notes

As of September 30, 2021, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands):

Convertible Notes Issuance	Face Value		Interest Rate			All-in Cost(1)			Maturity
May 2017	$	402,500		4.38	%		4.85	%		May 5, 2022
March 2018	$	220,000		4.75	%		5.33	%		March 15, 2023

(1)   Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method.

Refer to Notes 2 and 9 to our consolidated financial statements for additional discussion of our Convertible Notes.

Floating Rate Portfolio

Generally, our business model is such that rising interest rates will increase our net income, while declining interest rates will decrease net income. As of September 30, 2021, 98% of our investments by total investment exposure earned a floating rate of interest and were financed with liabilities that pay interest at floating rates, which resulted in an amount of net equity that is positively correlated to rising interest rates, subject to the impact of interest rate floors on certain of our floating rate investments. As of September 30, 2021, the remaining 2% of our investments by total investment exposure earned a fixed rate of interest, but are financed with liabilities that pay interest at floating rates, which resulted in a negative correlation to rising interest rates to the extent of our financing. In certain instances where we have financed fixed rate assets with floating rate liabilities, we have purchased interest rate caps to limit our exposure to increases in interest rates on such liabilities.

Our liabilities are generally currency and index-matched to each collateral asset, resulting in a net exposure to movements in benchmark rates that varies by currency silo based on the relative proportion of floating rate assets and liabilities. The following table details our investment portfolio’s net exposure to interest rates by currency as of September 30, 2021 (amounts in thousands):

	USD			EUR			GBP			SEK			AUD			CAD
Floating rate loans(1)(2)(3)	$	15,827,294		€	2,858,050		£	1,290,724		kr	4,990,212		A$	243,731		C$	60,064
Floating rate debt(1)(2)(3)(4)(5)		(12,704,353	)		(2,045,780	)		(863,451	)		(3,992,169	)		(177,127	)		(64,250	)
Net floating rate exposure(6)	$	3,122,941		€	812,270		£	427,273		kr	998,043		A$	66,604		C$	(4,186	)
Net floating rate exposure in USD(6)(7)	$	3,122,941		$	940,609		$	575,707		$	113,906		$	48,134		$	(3,301	)

(1)	Our floating rate investments and related liabilities are indexed to the various benchmark rates relevant in each case in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate.
(2)	Includes investment exposure and related financing of the 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for details of the subordinate position we own in the 2018 Single Asset Securitization.
(3)	As of September 30, 2021, £917.6 million and £373.1 million of floating rate loans were indexed to GBP LIBOR and SONIA, respectively. As of September 30, 2021, £472.6 million and £390.8 million of floating rate debt was indexed to GBP LIBOR and SONIA, respectively. As of September 30, 2021, three-month GBP LIBOR was 0.08% and SONIA was 0.05%.
(4)	Includes borrowings under secured debt, securitizations, asset-specific financings, and term loans.
(5)	As of September 30, 2021, $10.7 billion and $2.1 billion of floating rate debt was indexed to USD LIBOR and SOFR, respectively. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.
(6)	In addition, we have one interest rate cap of C$21.0 million ($16.6 million as of September 30, 2021) to limit our exposure to increases in interest rates.
(7)	Represents the U.S. Dollar equivalent as of September 30, 2021.

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III. Our Results of Operations

Operating Results

The following table sets forth information regarding our consolidated results of operations ($ in thousands, except per share data):    

	Three Months Ended						Change
	September 30, 2021			June 30, 2021			$
Income from loans and other investments
Interest and related income	$	200,114		$	196,303		$	3,811
Less: Interest and related expenses		82,690			82,352			338
Income from loans and other investments, net		117,424			113,951			3,473
Other expenses
Management and incentive fees		19,342			21,545			(2,203	)
General and administrative expenses		10,841			10,669			172
Total other expenses		30,183			32,214			(2,031	)
(Increase) decrease in current expected credit loss reserve		(2,767	)		50,906			(53,673	)
Income before income taxes		84,474			132,643			(48,169	)
Income tax provision		70			175			(105	)
Net income		84,404			132,468			(48,064	)
Net income attributable to non-controlling interests		(647	)		(873	)		226
Net income attributable to
Blackstone Mortgage Trust, Inc.	$	83,757		$	131,595		$	(47,838	)
Net income per share - basic and diluted	$	0.56		$	0.89		$	(0.33	)
Dividends declared per share	$	0.62		$	0.62		$	—

Income from loans and other investments, net

Income from loans and other investments, net increased $3.5 million during the three months ended September 30, 2021 as compared to the three months ended June 30, 2021. The increase was primarily due to (i) an increase in the weighted-average principal balance of our loan portfolio by $957.3 million during the three months ended September 30, 2021, as compared to the three months ended June 30, 2021 and (ii) one additional day of net interest income accrued during the three months ended September 30, 2021, as compared to the three months ended June 30, 2021. This was offset by an increase in the weighted-average principal balance of our outstanding financing arrangements by $864.7 million during the three months ended September 30, 2021, as compared to the three months ended June 30, 2021.

Other expenses

Other expenses include management and incentive fees payable to our Manager and general and administrative expenses. Other expenses decreased by $2.0 million during the three months ended September 30, 2021 compared to the three months ended June 30, 2021 primarily due to a $2.4 million decrease of incentive fees payable to our Manager. This was offset by (i) a $213,000 increase in management fees payable to our Manager, primarily as a result of net proceeds received from the sale of shares of our class A common stock during the three months ended September 30, 2021 and (ii) an increase of $111,000 of general operating expenses.

Changes in current expected credit loss reserve

During the three months ended September 30, 2021, we recorded a $2.8 million increase in the current expected credit loss reserve, as compared to a $50.9 million decrease during the three months ended June 30, 2021. The increase in the CECL reserve during the three months ended September 30, 2021 is primarily due to an increase in our loans receivable portfolio during the three months ended September 30, 2021. This CECL reserve reflects the macroeconomic impact of the COVID-19 pandemic on commercial real estate markets generally, as well as certain loans assessed for impairment in our portfolio. This reserve is not reflective of what we expect our CECL reserve would be absent the current and potential future impacts of the COVID-19 pandemic. See Notes 2 and 3 to our consolidated financial statements for further discussion of our CECL reserve.    

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Net income attributable to non-controlling interests

During the three months ended September 30, 2021 and June 30, 2021, we recorded $647,000 and $873,000, respectively, of net income attributable to non-controlling interests related to our Multifamily Joint Venture.    

Dividends per share

During the three months ended September 30, 2021, we declared a dividend of $0.62 per share, or $97.3 million in aggregate, which was paid on October 15, 2021 to common stockholders of record as of September 30, 2021. During the three months ended June 30, 2021, we declared a dividend of $0.62 per share, or $91.1 million in aggregate.

The following table sets forth information regarding our consolidated results of operations for the nine months ended September 30, 2021 and 2020 ($ in thousands, except per share data):

	Nine Months Ended						Change
	September 30, 2021			September 30, 2020			$
Income from loans and other investments
Interest and related income	$	583,941		$	590,797		$	(6,856	)
Less: Interest and related expenses		243,414			268,070			(24,656	)
Income from loans and other investments, net		340,527			322,727			17,800
Other expenses
Management and incentive fees		60,094			58,758			1,336
General and administrative expenses		32,107			34,320			(2,213	)
Total other expenses		92,201			93,078			(877	)
Decrease (increase) in current expected credit loss reserve		49,432			(173,466	)		222,898
Income before income taxes		297,758			56,183			241,575
Income tax provision		346			192			154
Net income		297,412			55,991			241,421
Net income attributable to non-controlling interests		(2,158	)		(1,937	)		(221	)
Net income attributable to Blackstone Mortgage Trust, Inc.	$	295,254		$	54,054		$	241,200
Net income per share - basic and diluted	$	2.00		$	0.39		$	1.61
Dividends declared per share	$	1.86		$	1.86		$	—

Income from loans and other investments, net

Income from loans and other investments, net increased $17.8 million during the nine months ended September 30, 2021 as compared to the corresponding period in 2020. The increase was primarily due to (i) the impact of declining LIBOR and other floating rate indices, which had a larger impact on interest expense than interest income as a result of certain of our loans earning interest based on floors that were above the applicable floating rate index during the period, and (ii) an increase in the weighted-average principal balance of our loan portfolio by $1.1 billion for the nine months ended September 30, 2021, as compared to the corresponding period in 2020. This was offset by an increase in the weighted-average principal balance of our outstanding financing arrangements by $936.9 million for the nine months ended September 30, 2021, as compared to the corresponding period in 2020.    

Other expenses

Other expenses include management and incentive fees payable to our Manager and general and administrative expenses. Other expenses decreased by $877,000 during the nine months ended September 30, 2021 compared to the corresponding period in 2020 due to a decrease of (i) $1.8 million in non-cash restricted stock amortization, due to a decrease in the weighted-average grant date share price of the awards, (ii) $761,000 of incentive fees payable to our Manager, and (iii) $419,000 of general operating expenses. This was offset by an increase of $2.1 million of management fees payable to our Manager, primarily as a result of net proceeds received from the sale of shares of our class A common stock during 2020 and 2021.

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Changes in current expected credit loss reserve

During the nine months ended September 30, 2021, we recorded a $49.4 million decrease in the current expected credit loss reserve as compared to a $173.5 million increase during the nine months ended September 30, 2020. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. This CECL reserve reflects the macroeconomic impact of the COVID-19 pandemic on commercial real estate markets generally, as well as certain loans assessed for impairment in our portfolio. This reserve is not reflective of what we expect our CECL reserve would be absent the current and potential future impacts of the COVID-19 pandemic. See Notes 2 and 3 to our consolidated financial statements for further discussion of our CECL reserve.

Net income attributable to non-controlling interests

During the nine months ended September 30, 2021 and 2020, we recorded $2.2 million and $1.9 million, respectively, of net income attributable to non-controlling interests related to our Multifamily Joint Venture.    

Dividends per share

During the nine months ended September 30, 2021, we declared aggregate dividends of $1.86 per share, or $279.7 million. During the nine months ended September 30, 2020, we declared aggregate dividends of $1.86 per share, or $265.2 million.

IV. Liquidity and Capital Resources

Capitalization

We have capitalized our business to date primarily through the issuance and sale of shares of our class A common stock, corporate debt, and asset-level financing. As of September 30, 2021, our capitalization structure included $4.2 billion of common equity, $2.0 billion of corporate debt, and $15.8 billion of asset-level financing. Our $2.0 billion of corporate debt includes $1.4 billion of term loan borrowings and $622.5 million of convertible notes, of which $402.5 million matures prior to September 30, 2022. Our $15.8 billion of asset-level financing includes $11.2 billion of secured debt, $3.3 billion of securitizations, and $1.3 billion of asset-specific financings all of which are structured to produce term, currency and index matched funding with no margin call provisions based upon capital markets events. Additionally, on September 24, 2021 we priced $400.0 million aggregate principal amount of 3.75% senior secured notes due 2027, which were issued on October 5, 2021.

As of September 30, 2021, we have $1.1 billion of liquidity that can be used to satisfy our short-term cash requirements and as working capital for our business.

See Notes 5, 6, 7, 8, and 9 to our consolidated financial statements for additional details regarding our secured debt, securitized debt obligations, asset-specific debt, Term Loans, and Convertible Notes, respectively.

Debt-to-Equity Ratio and Total Leverage Ratio

The following table presents our debt-to-equity ratio and total leverage ratio:

	September 30, 2021	December 31, 2020
Debt-to-equity ratio(1)	3.1x	2.5x
Total leverage ratio(2)	4.1x	3.6x

(1)	Represents (i) total outstanding secured debt, asset-specific debt, term loans, and convertible notes, less cash, to (ii) total equity, in each case at period end.
(2)	Represents (i) total outstanding secured debt, securitizations, asset-specific financings, term loans, and convertible notes, less cash, to (ii) total equity, in each case at period end.

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Sources of Liquidity

Our primary sources of liquidity include cash and cash equivalents, available borrowings under our secured debt facilities, and net receivables from servicers related to loan repayments, which are set forth in the following table ($ in thousands):    

	September 30, 2021		December 31, 2020
Cash and cash equivalents	$	211,180	$	289,970
Senior secured notes, net(1)		395,000		—
Available borrowings under secured debt		452,438		829,165
Loan principal payments held by servicer, net(2)		299		19,460
	$	1,058,917	$	1,138,595

(1)	On September 24, 2021 we priced $400.0 million aggregate principal amount of 3.75% senior secured notes due 2027, which were issued on October 5, 2021.
(2)	Represents loan principal payments held by our third-party servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle, net of the related secured debt balance.

During the nine months ended September 30, 2021, we generated cash flow from operating activities of $255.0 million, received repayments of $3.4 billion, received $312.0 million of net proceeds from the issuance of shares of class A common stock, and received $298.5 million of net proceeds from borrowings under term loans. Furthermore, we are able to generate incremental liquidity through the replenishment provisions of our 2021 FL4, 2020 FL3, and 2020 FL2 CLOs, which allow us to replace a repaid loan in the CLO by increasing the principal amount of existing CLO collateral assets to maintain the aggregate amount of collateral assets in the CLO, and the related financing outstanding.    

We have access to liquidity through public offerings of debt and equity securities. To facilitate such offerings, in July 2019, we filed a shelf registration statement with the SEC that is effective for a term of three years and expires at the end of July 2022. The amount of securities to be issued pursuant to this shelf registration statement was not specified when it was filed and there is no specific dollar limit on the amount of securities we may issue. The securities covered by this registration statement include: (i) class A common stock; (ii) preferred stock; (iii) debt securities; (iv) depositary shares representing preferred stock; (v) warrants; (vi) subscription rights; (vii) purchase contracts; and (viii) units consisting of one or more of such securities or any combination of these securities. The specifics of any future offerings, along with the use of proceeds of any securities offered, will be described in detail in a prospectus supplement, or other offering materials, at the time of any offering.    

We may also access liquidity through a dividend reinvestment plan and direct stock purchase plan, under which 9,990,545 shares of class A common stock were available for issuance as of September 30, 2021, and our at-the-market stock offering program, pursuant to which we may sell, from time to time, up to $363.8 million of additional shares of our class A common stock as of September 30, 2021. Refer to Note 11 to our consolidated financial statements for additional details.    

Liquidity Needs

In addition to our loan origination activity and general operating expenses, our primary liquidity needs include interest and principal payments under our $11.2 billion of outstanding borrowings under secured debt facilities, our asset-specific debt facilities, our Term Loans, and our Convertible Notes.

As of September 30, 2021, we had aggregate unfunded loan commitments of $4.2 billion across 108 loans receivable, and $2.6 billion of committed or identified financings for those commitments, resulting in net unfunded commitments of $1.6 billion. The unfunded loan commitments comprise funding for capital expenditures and construction, leasing costs, and interest and carry costs, and their funding will vary depending on the progress of capital projects, leasing, and cash flows at the properties securing our loans. Therefore, the exact timing and amounts of such future loan fundings are uncertain and will depend on the current and future performance of the underlying collateral assets. We expect to fund our loan commitments over the remaining term of the related loans, which have a weighted-average future funding period of 3.2 years.    

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Contractual Obligations and Commitments

Our contractual obligations and commitments as of September 30, 2021 were as follows ($ in thousands):    

			Payment Timing
	Total		Less Than		1 to 3		3 to 5		More Than
	Obligation		1 Year(1)		Years		Years		5 Years
Unfunded loan commitments(2)	$	4,220,214	$	449,885	$	1,798,514	$	1,441,808	$	530,007
Principal repayments under secured debt(3)		11,188,855		270,865		3,877,134		6,265,773		775,083
Principal repayments under asset-specific debt(3)		328,068		—		149,897		178,171		—
Principal repayments of term loans(4)		1,352,706		13,738		27,477		1,311,491		—
Principal repayments of convertible notes(5)		622,500		402,500		220,000		—		—
Interest payments(3)(6)		882,878		282,365		405,211		193,045		2,257
Total(7)	$	18,595,221	$	1,419,353	$	6,478,233	$	9,390,288	$	1,307,347

(1)	Represents our known, estimated short-term cash requirements related to our contractual obligations and commitments. Refer to the sources of liquidity section above for our sources of funds to satisfy our short-term cash requirements.
(2)	The allocation of our unfunded loan commitments is based on the earlier of the commitment expiration date or the final loan maturity date, however we may be obligated to fund these commitments earlier than such date.
(3)	The allocation of repayments under our secured debt and asset-specific debt for both principal and interest payments is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower.
(4)	The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the principal balance due in quarterly installments. Refer to Note 8 to our consolidated financial statements for further details on our term loans.
(5)	Reflects the outstanding principal balance of convertible notes, excluding any potential conversion premium. Refer to Note 9 to our consolidated financial statements for further details on our convertible notes.
(6)	Represents interest payments on our secured debt, asset-specific debt, Term Loans, and convertible notes. Future interest payment obligations are estimated assuming the interest rates in effect as of September 30, 2021 will remain constant into the future. This is only an estimate as actual amounts borrowed and interest rates will vary over time.
(7)	Total does not include $2.9 billion of consolidated securitized debt obligations, $997.6 million of non-consolidated senior interests, and $414.1 million of non-consolidated securitized debt obligations, as the satisfaction of these liabilities will not require cash outlays from us.

We are also required to settle our foreign exchange derivatives with our derivative counterparties upon maturity which, depending on exchange rate movements, may result in cash received from or due to the respective counterparty. The table above does not include these amounts as they are not fixed and determinable. Refer to Note 10 to our consolidated financial statements for details regarding our derivative contracts.    

We are required to pay our Manager a base management fee, an incentive fee, and reimbursements for certain expenses pursuant to our Management Agreement. The table above does not include the amounts payable to our Manager under our Management Agreement as they are not fixed and determinable. Refer to Note 12 to our consolidated financial statements for additional terms and details of the fees payable under our Management Agreement.

As a REIT, we generally must distribute substantially all of our net taxable income to stockholders in the form of dividends to comply with the REIT provisions of the Internal Revenue Code. Our taxable income does not necessarily equal our net income as calculated in accordance with GAAP, or our Distributable Earnings as described above.

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Cash Flows

The following table provides a breakdown of the net change in our cash and cash equivalents ($ in thousands):    

	Nine Months Ended September 30,
	2021			2020
Cash flows provided by operating activities	$	255,022		$	261,296
Cash flows used in investing activities		(3,926,040	)		(105,726	)
Cash flows provided by financing activities		3,616,649			120,778
Net (decrease) increase in cash, cash equivalents, and restricted cash	$	(54,369	)	$	276,348

We experienced a net decrease in cash, cash equivalents, and restricted cash of $54.4 million for the nine months ended September 30, 2021, compared to a net increase of $276.3 million for the nine months ended September 30, 2020. During the nine months ended September 30, 2021, we funded $7.4 billion of new loans, and we received (i) a net $3.5 billion from borrowings under our secured debt, (ii) $3.4 billion from loan principal collections, (iii) $312.0 million of net proceeds from the issuance of shares of class A common stock, and (iv) $298.5 million of net proceeds from term loan borrowings.

Refer to Note 3 to our consolidated financial statements for further discussion of our loan activity. Refer to Notes 5 and 8 to our consolidated financial statements for further discussion of our secured debt and term loans.

V. Other Items

Income Taxes

We have elected to be taxed as a REIT under the Internal Revenue Code for U.S. federal income tax purposes. We generally must distribute annually at least 90% of our net taxable income, subject to certain adjustments and excluding any net capital gain, in order for U.S. federal income tax not to apply to our earnings that we distribute. To the extent that we satisfy this distribution requirement, but distribute less than 100% of our net taxable income, we will be subject to U.S. federal income tax on our undistributed taxable income. In addition, we will be subject to a 4% nondeductible excise tax if the actual amount that we pay out to our stockholders in a calendar year is less than a minimum amount specified under U.S. federal tax laws.

Our qualification as a REIT also depends on our ability to meet various other requirements imposed by the Internal Revenue Code, which relate to organizational structure, diversity of stock ownership, and certain restrictions with regard to the nature of our assets and the sources of our income. Even if we qualify as a REIT, we may be subject to certain U.S. federal income and excise taxes and state and local taxes on our income and assets. If we fail to maintain our qualification as a REIT for any taxable year, we may be subject to material penalties as well as federal, state and local income tax on our taxable income at regular corporate rates and we would not be able to qualify as a REIT for the subsequent four full taxable years. As of September 30, 2021 and December 31, 2020, we were in compliance with all REIT requirements.

Refer to Note 13 to our consolidated financial statements for additional discussion of our income taxes.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations is based upon our consolidated financial statements, which have been prepared in accordance with GAAP. There have been no material changes to our Critical Accounting Policies described in our annual report on Form 10-K filed with the SEC on February 10, 2021.

Refer to Note 2 to our consolidated financial statements for the description of our significant accounting policies.

Critical Accounting Estimates

The preparation of these financial statements requires our Manager to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue and expenses, and related disclosure of contingent assets and liabilities. Actual results could differ materially from these estimates.

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Current Expected Credit Losses

The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM method, which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board Staff Q&A Topic 326, No. 1. Estimating the CECL reserve requires judgment, including the following assumptions:

• Historical loan loss reference data: To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, which includes zero realized loan losses since the launch of our senior loan origination business in 2013, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through August 31, 2021. Within this database, we focused our historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio.

• Expected timing and amount of future loan fundings and repayments: Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve. Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables.

• Current credit quality of our portfolio: Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship.

• Expectations of performance and market conditions: Our CECL reserve is adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while based on the information available to us as of the balance sheet date, are ultimately indeterminate and the actual economic condition impacting our portfolio could vary significantly from the estimates we made as of September 30, 2021.

• Impairment: impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors

72

deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected.

These assumptions vary from quarter to quarter as our loan portfolio changes and market and economic conditions evolve. The sensitivity of each assumption and its impact on the CECL reserve may change over time and from period to period. During the nine months ended September 30, 2021, we recorded an aggregate $49.4 million decrease in the CECL reserve related to loans receivable, debt securities, and unfunded loan commitments, bringing our total reserve to $135.9 million as of September 30, 2021. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the improvement in the performance of the collateral assets underlying our portfolio. This CECL reserve reflects the macroeconomic impact of the COVID-19 pandemic on commercial real estate markets generally, as well as certain loans assessed for impairment in our portfolio. Further, this reserve is not reflective of what we expect our CECL reserve would be absent the current and potential future impacts of the COVID-19 pandemic. See Notes 2 and 3 to our consolidated financial statements for further discussion of our CECL reserve.

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VI. Loan Portfolio Details

The following table provides details of our loan portfolio, on a loan-by-loan basis, as of September 30, 2021 ($ in millions):

	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value		Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
1	Senior loan	8/14/2019	$	1,274.8	$	1,237.5	$	1,233.3		+ 2.53	%		+ 2.99	%	12/23/2024	Dublin - IE	Office	$450 / sqft		74	%	2
2	Senior loan	3/22/2018		858.0		858.0		856.6		+ 3.25	%		+ 3.42	%	3/15/2023	Diversified - Spain	Mixed-Use	n / a		71	%	4
3	Senior loan	11/25/2019		724.2		689.8		691.8		+ 2.30	%		+ 2.59	%	12/9/2024	New York	Office	$988 / sqft		65	%	3
4	Senior loan	3/30/2021		569.5		569.5		564.3		+ 3.20	%		+ 3.41	%	5/15/2026	Diversified - SE	Industrial	$104 / sqft		76	%	2
5	Senior loan(4)	8/7/2019		745.8		440.5		87.1		+ 3.12	%		+ 3.60	%	9/9/2025	Los Angeles	Office	$298 / sqft		59	%	3
6	Senior loan	8/22/2018		362.5		362.5		362.1		+ 3.15	%		+ 3.28	%	8/9/2023	Maui	Hospitality	$471,391 / key		61	%	3
7	Senior loan	9/23/2019		405.3		348.8		346.1		+ 3.00	%		+ 3.22	%	11/15/2024	Diversified - Spain	Hospitality	$190,703 / key		62	%	4
8	Senior loan	4/11/2018		355.0		344.5		344.0		+ 2.85	%		+ 3.10	%	5/1/2023	New York	Office	$437 / sqft		71	%	3
9	Senior loan(4)	8/6/2015		324.9		324.9		58.9		5.75	%		5.85	%	10/29/2022	Diversified - EUR	Other	n / a		71	%	3
10	Senior loan	1/11/2019		323.5		323.5		321.2		+ 4.35	%		+ 4.70	%	1/11/2026	Diversified - UK	Other	$320 / sqft		74	%	4
11	Senior loan	3/16/2021		490.8		309.9		305.9		+ 3.85	%		+ 4.15	%	4/9/2026	Boston	Life Sciences	$765 / sqft		66	%	2
12	Senior loan	2/27/2020		300.0		297.3		295.9		+ 2.70	%		+ 3.04	%	3/9/2025	New York	Mixed-Use	$933 / sqft		59	%	3
13	Senior loan	9/30/2019		305.5		296.6		297.1		+ 3.66	%		+ 3.75	%	9/9/2024	Chicago	Office	$257 / sqft		58	%	1
14	Senior loan	11/30/2018		286.3		286.3		284.8		n/m	(7)		n/m	(7)	8/9/2025	New York	Hospitality	$306,870 / key		73	%	5
15	Senior loan	10/23/2018		290.4		273.9		273.2		+ 2.80	%		+ 3.04	%	11/9/2024	Atlanta	Office	$255 / sqft		64	%	2
16	Senior loan	12/11/2018		310.0		265.0		264.6		+ 2.55	%		+ 2.96	%	12/9/2023	Chicago	Office	$223 / sqft		78	%	3
17	Senior loan	9/30/2021		280.0		264.8		262.7		+ 2.50	%		+ 2.77	%	9/30/2026	Dallas	Multi	$139,884 / unit		74	%	3
18	Senior loan	4/26/2021		263.5		263.5		261.7		+ 2.45	%		+ 2.63	%	5/9/2026	Diversified - US	Multi	$156,393 / unit		75	%	3
19	Senior loan(4)	11/22/2019		470.0		260.4		51.3		+ 3.70	%		+ 4.15	%	12/9/2025	Los Angeles	Office	$243 / sqft		69	%	3
20	Senior loan	9/14/2021		257.9		251.0		249.9		+ 2.50	%		+ 2.76	%	9/14/2026	Dallas	Multi	$203,644 / unit		72	%	3
21	Senior loan	10/1/2019		354.1		249.2		246.3		+ 3.75	%		+ 4.26	%	10/9/2025	Atlanta	Mixed-Use	$365 / sqft		70	%	2
22	Senior loan	11/30/2018		263.9		248.9		248.6		+ 2.80	%		+ 3.34	%	12/9/2024	San Francisco	Hospitality	$365,544 / key		73	%	4
23	Senior loan	9/29/2021		312.2		248.6		246.2		+ 2.70	%		+ 2.92	%	10/9/2026	Washington DC	Office	$324 / unit		66	%	3
24	Senior loan	7/23/2021		500.0		245.6		240.6		+ 4.00	%		+ 4.34	%	8/9/2027	New York	Multi	$329,600 / unit		58	%	3
25	Senior loan	7/20/2017		250.0		222.6		221.6		+ 3.70	%		+ 4.16	%	8/9/2023	San Francisco	Office	$369 / sqft		58	%	2
26	Senior loan	12/12/2019		260.5		220.9		220.7		+ 2.40	%		+ 2.69	%	12/9/2024	New York	Office	$105 / sqft		42	%	1
27	Senior loan(4)	3/23/2020		348.6		215.6		42.2		+ 3.75	%		+ 4.41	%	1/9/2025	Nashville	Mixed-Use	$298 / sqft		78	%	3
28	Senior loan	4/23/2021		219.0		209.0		208.6		+ 3.65	%		+ 3.77	%	5/8/2024	Washington DC	Office	$234 / sqft		57	%	3
29	Senior loan	9/16/2021		246.6		208.2		205.8		+ 3.80	%		+ 4.49	%	4/9/2024	San Francisco	Office	$262 / unit		53	%	3
30	Senior loan	8/31/2017		203.0		201.7		201.3		+ 2.50	%		+ 2.85	%	9/9/2023	Orange County	Office	$235 / sqft		64	%	3

continued…

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	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value		Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
31	Senior loan	6/27/2019		222.1		201.3		200.6		+ 2.80	%		+ 3.16	%	8/15/2026	Berlin - DEU	Office	$432 / sqft		62	%	3
32	Senior loan	11/5/2019		213.7		200.7		200.1		+ 3.85	%		+ 4.45	%	2/21/2025	Diversified - IT	Office	$396 / sqft		66	%	3
33	Senior loan	9/25/2019		198.3		198.3		197.3		+ 4.35	%		+ 4.93	%	9/26/2023	London - UK	Office	$904 / sqft		72	%	3
34	Senior loan	11/23/2018		197.2		197.2		196.1		+ 2.62	%		+ 2.87	%	2/15/2024	Diversified - UK	Office	$1,196 / sqft		50	%	3
35	Senior loan	9/30/2021		195.0		195.0		193.1		+ 3.75	%		+ 4.10	%	10/9/2026	Boca Raton	Multi	$532,787 / unit		77	%	3
36	Senior loan	12/22/2016		204.5		192.1		192.0		+ 2.90	%		+ 3.13	%	12/9/2022	New York	Office	$270 / sqft		64	%	3
37	Senior loan	6/4/2018		187.8		187.8		187.4		+ 3.50	%		+ 3.76	%	6/9/2024	New York	Hospitality	$309,308 / key		52	%	4
38	Senior loan	11/16/2018		211.9		187.4		187.0		+ 4.10	%		+ 4.73	%	12/9/2023	Fort Lauderdale	Mixed-Use	$527 / sqft		59	%	2
39	Senior loan	4/9/2018		1,486.5		185.0		173.6		+ 8.50	%		+ 10.64	%	6/9/2025	New York	Office	$525 / sqft		48	%	2
40	Senior loan	2/18/2021		184.0		184.0		182.5		+ 3.20	%		+ 3.54	%	3/9/2026	Durham	Multi	$314 / sqft		72	%	3
41	Senior loan	4/25/2019		210.0		179.4		179.0		+ 3.50	%		+ 3.75	%	9/1/2025	Los Angeles	Office	$806 / sqft		73	%	1
42	Senior loan	4/3/2018		178.6		177.5		177.2		+ 2.75	%		+ 2.99	%	4/9/2024	Dallas	Mixed-Use	$502 / sqft		64	%	3
43	Senior loan	9/26/2019		175.0		175.0		175.2		+ 3.10	%		+ 3.54	%	1/9/2023	New York	Office	$256 / sqft		65	%	3
44	Senior loan	9/30/2021		256.0		171.6		169.4		+ 3.00	%		+ 3.35	%	10/9/2028	Chicago	Office	$190 / unit		74	%	3
45	Senior loan	12/21/2017		197.5		170.3		170.2		+ 2.65	%		+ 2.87	%	1/9/2023	Atlanta	Office	$127 / sqft		51	%	2
46	Senior loan	9/5/2019		198.4		165.6		164.7		+ 2.75	%		+ 3.26	%	9/9/2024	New York	Life Sciences	$1,033 / sqft		62	%	3
47	Senior loan	6/28/2019		220.6		164.8		162.7		+ 3.70	%		+ 4.01	%	6/27/2024	London - UK	Office	$538 / sqft		71	%	3
48	Senior loan	9/30/2021		212.6		159.5		157.3		+ 4.00	%		+ 4.52	%	9/30/2026	Diversified - Spain	Hospitality	$143,571 / unit		60	%	3
49	Senior loan	9/4/2018		172.7		158.0		157.6		+ 3.00	%		+ 3.39	%	9/9/2023	Las Vegas	Hospitality	$191,321 / key		70	%	3
50	Senior loan	8/23/2017		165.0		157.9		157.9		+ 3.25	%		+ 3.48	%	10/9/2022	Los Angeles	Office	$320 / sqft		74	%	3
51	Senior loan	5/27/2021		205.4		153.8		152.4		+ 2.70	%		+ 2.99	%	6/9/2026	Atlanta	Office	$130 / sqft		66	%	3
52	Senior loan	8/24/2021		179.3		153.0		151.5		+ 3.10	%		+ 3.41	%	9/9/2026	San Jose	Office	$365 / unit		65	%	3
53	Senior loan	12/20/2019		151.4		151.4		150.4		+ 3.10	%		+ 3.32	%	12/18/2026	London - UK	Office	$753 / sqft		75	%	2
54	Senior loan	1/17/2020		203.0		136.4		135.5		+ 2.75	%		+ 3.07	%	2/9/2025	New York	Mixed-Use	$113 / sqft		43	%	3
55	Senior loan	7/23/2021		243.6		135.4		133.1		+ 5.00	%		+ 5.33	%	8/9/2027	New York	Mixed-Use	$438 / unit		53	%	3
56	Senior loan	11/14/2017		133.0		133.0		132.9		+ 2.75	%		+ 2.86	%	6/9/2023	Los Angeles	Hospitality	$532,000 / key		56	%	3
57	Senior loan	7/15/2021		213.9		132.5		130.9		+ 4.25	%		+ 4.49	%	7/15/2026	Diversified - EUR	Hospitality	$154,254 / unit		53	%	3
58	Senior loan	11/30/2018		151.1		129.9		129.4		+ 2.55	%		+ 2.82	%	12/9/2024	Washington DC	Office	$364 / sqft		60	%	2
59	Senior loan	9/14/2021		131.5		127.4		126.4		+ 2.70	%		+ 2.95	%	10/9/2026	San Bernardino	Multi	$256,774 / unit		75	%	3
60	Senior loan(4)	11/27/2019		146.3		123.8		123.1		+ 2.75	%		+ 3.13	%	12/9/2024	Minneapolis	Office	$124 / sqft		64	%	3

continued…

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	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value		Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
61	Senior loan	4/30/2018		172.7		122.3		121.7		+ 3.25	%		+ 3.51	%	4/30/2023	London - UK	Office	$550 / sqft		60	%	3
62	Senior loan	3/10/2020		140.0		118.9		118.9		+ 2.50	%		+ 2.67	%	1/9/2025	New York	Mixed-Use	$77 / sqft		53	%	3
63	Senior loan	6/28/2019		125.0		117.2		117.0		+ 2.75	%		+ 2.91	%	2/1/2024	Los Angeles	Office	$591 / sqft		48	%	3
64	Senior loan	4/6/2021		122.7		116.6		115.7		+ 3.20	%		+ 3.52	%	4/9/2026	Los Angeles	Office	$492 / sqft		65	%	3
65	Senior loan	7/15/2019		144.6		116.5		116.0		+ 2.90	%		+ 3.25	%	8/9/2024	Houston	Office	$211 / sqft		58	%	3
66	Senior loan	9/14/2018		114.0		114.0		113.6		+ 3.50	%		+ 3.84	%	9/14/2023	Canberra - AU	Mixed-Use	$335 / sqft		68	%	3
67	Senior loan	8/27/2021		122.4		114.0		113.0		+ 3.00	%		+ 3.29	%	9/9/2026	San Diego	Retail	$430 / unit		58	%	3
68	Senior loan	12/21/2018		123.1		113.7		113.6		+ 2.60	%		+ 2.99	%	1/9/2024	Chicago	Office	$222 / key		72	%	3
69	Senior loan	3/29/2021		137.6		112.0		110.4		+ 3.90	%		+ 4.55	%	3/29/2026	Diversified - UK	Multi	$49,113 / unit		61	%	3
70	Senior loan	10/17/2016		110.8		110.8		110.8		+ 3.95	%		+ 3.96	%	10/21/2021	Diversified - UK	Self-Storage	$152 / sqft		73	%	2
71	Senior loan	5/20/2021		148.2		106.4		105.1		+ 3.60	%		+ 4.00	%	6/9/2026	San Jose	Office	$273 / sqft		65	%	3
72	Senior loan	10/16/2018		113.7		104.8		104.8		+ 3.25	%		+ 3.57	%	11/9/2023	San Francisco	Hospitality	$228,299 / key		72	%	4
73	Senior loan	3/13/2018		123.0		103.6		103.4		+ 3.00	%		+ 3.27	%	4/9/2027	Honolulu	Hospitality	$160,580 / key		50	%	3
74	Senior loan	5/13/2021		199.1		103.3		101.6		+ 3.55	%		+ 3.96	%	6/9/2026	Boston	Life Sciences	$524 / sqft		64	%	3
75	Senior loan	3/25/2020		123.4		100.7		100.1		+ 2.40	%		+ 2.78	%	3/31/2025	Diversified - NL	Multi	$123,005 / unit		65	%	2
76	Senior loan	7/1/2021		104.0		99.0		98.3		+ 3.10	%		+ 3.35	%	7/9/2026	Diversified - US	Retail	$281 / sqft		61	%	3
77	Senior loan	6/18/2021		98.5		98.5		97.6		+ 2.60	%		+ 2.83	%	7/9/2026	New York	Industrial	$52 / sqft		55	%	2
78	Senior loan	12/23/2019		109.7		97.9		97.5		+ 2.70	%		+ 3.03	%	1/9/2025	Miami	Multi	$338,713 / unit		68	%	2
79	Senior loan	12/10/2018		119.7		97.1		96.1		+ 2.95	%		+ 3.95	%	12/3/2024	London - UK	Office	$464 / sqft		72	%	3
80	Senior loan	3/28/2019		98.4		96.5		96.5		+ 3.25	%		+ 3.40	%	1/9/2024	New York	Hospitality	$249,435 / key		63	%	4
81	Senior loan	2/20/2019		181.9		94.9		93.0		+ 3.95	%		+ 4.43	%	2/19/2024	London - UK	Office	$466 / sqft		61	%	3
82	Senior loan	6/14/2021		100.0		92.4		91.8		+ 3.70	%		+ 4.04	%	7/9/2024	Miami	Office	$195 / sqft		65	%	3
83	Senior loan	6/1/2021		95.0		91.3		90.9		+ 2.85	%		+ 3.05	%	6/9/2026	Miami	Multi	$226,673 / unit		61	%	3
84	Senior loan	3/31/2017		96.9		90.6		90.9		+ 4.30	%		+ 4.24	%	4/9/2023	New York	Office	$444 / sqft		64	%	3
85	Senior loan	8/18/2017		90.0		90.0		89.8		+ 4.10	%		+ 4.41	%	8/18/2022	Brussels - BE	Office	$140 / sqft		59	%	1
86	Senior loan	2/3/2021		110.5		89.6		88.7		+ 3.20	%		+ 3.57	%	2/9/2026	Austin	Office	$371 / sqft		56	%	2
87	Senior loan	6/25/2021		85.4		85.4		84.8		+ 2.75	%		+ 3.10	%	7/1/2026	St. Louis	Multi	$80,339 / unit		70	%	3
88	Senior loan	11/22/2019		85.0		85.0		85.0		+ 2.99	%		+ 3.27	%	12/1/2024	San Jose	Multi	$317,164 / unit		62	%	2
89	Senior loan	2/1/2021		82.5		82.5		82.4		+ 4.05	%		+ 4.18	%	8/1/2022	Washington DC	Multi	$214,844 / unit		67	%	2
90	Senior loan	6/29/2016		83.4		81.4		81.3		+ 2.80	%		+ 3.04	%	7/8/2022	Miami	Office	$314 / sqft		64	%	2

continued…

76

	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value		Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
91	Senior loan	7/30/2021		86.9		79.5		79.1		+ 2.50	%		+ 2.84	%	8/9/2026	Los Angeles	Multi	$157,772 / unit		70	%	3
92	Senior loan	7/29/2021		81.9		77.7		76.9		+ 2.65	%		+ 3.02	%	6/9/2026	Charlotte	Multi	$212,295 / unit		78	%	3
93	Senior loan	6/27/2019		84.0		75.2		75.0		+ 2.50	%		+ 2.77	%	7/9/2024	West Palm Beach	Office	$258 / sqft		70	%	2
94	Senior loan	6/18/2019		75.0		75.0		74.8		+ 2.75	%		+ 3.15	%	7/9/2024	Napa Valley	Hospitality	$785,340 / key		74	%	3
95	Senior loan	4/1/2021		102.1		73.9		73.0		+ 3.30	%		+ 3.71	%	4/9/2026	San Jose	Office	$493 / sqft		67	%	3
96	Senior loan	3/21/2018		74.3		72.3		72.2		+ 3.10	%		+ 3.33	%	3/21/2024	Jacksonville	Office	$94 / sqft		72	%	2
97	Senior loan	7/23/2021		72.7		70.7		70.7		+ 3.00	%		+ 3.02	%	7/9/2024	New York	Multi	$399 / unit		62	%	3
98	Senior loan	9/22/2021		67.0		67.0		66.8		+ 3.00	%		+ 3.16	%	4/1/2024	Jacksonville	Multi	$181,081 / unit		62	%	3
99	Senior loan	1/30/2020		104.4		66.7		66.2		+ 2.85	%		+ 3.22	%	2/9/2026	Honolulu	Hospitality	$214,341 / key		63	%	3
100	Senior loan	8/22/2019		74.3		65.0		64.8		+ 2.55	%		+ 2.93	%	9/9/2024	Los Angeles	Office	$389 / sqft		63	%	3
101	Senior loan	6/29/2017		63.4		63.4		63.4		+ 3.40	%		+ 4.16	%	7/9/2023	New York	Multi	$184,768 / unit		69	%	4
102	Senior loan	10/5/2018		62.2		62.2		62.1		+ 5.50	%		+ 5.65	%	10/5/2021	Sydney - AU	Office	$660 / sqft		78	%	3
103	Senior loan	3/31/2021		62.0		62.0		61.9		+ 3.73	%		+ 3.86	%	4/1/2024	Boston	Multi	$316,327 / unit		75	%	2
104	Senior loan	7/30/2021		61.9		61.9		61.4		+ 2.75	%		+ 2.94	%	8/9/2026	Salt Lake City	Multi	$224,185 / unit		73	%	3
105	Senior loan	9/29/2021		61.5		58.0		57.8		+ 2.85	%		+ 3.02	%	10/1/2025	Houston	Multi	$52,968 / unit		61	%	3
106	Senior loan	7/16/2021		57.9		57.9		57.5		+ 2.75	%		+ 3.03	%	8/1/2025	Orlando	Multi	$195,750 / unit		74	%	2
107	Senior loan	6/28/2021		57.9		57.9		56.9		+ 3.60	%		+ 4.86	%	2/15/2023	Diversified - Spain	Hospitality	$135,660 / key		56	%	3
108	Senior loan	6/30/2021		64.6		57.2		56.7		+ 2.90	%		+ 3.19	%	7/9/2026	Nashville	Office	$235 / sqft		71	%	3
109	Senior loan	4/15/2021		66.3		56.7		56.2		+ 3.00	%		+ 3.30	%	5/9/2026	Austin	Office	$275 / sqft		73	%	3
110	Senior loan	8/14/2019		70.3		56.3		56.0		+ 2.45	%		+ 2.87	%	9/9/2024	Los Angeles	Office	$645 / sqft		57	%	3
111	Senior loan	12/10/2020		61.2		54.3		53.9		+ 3.25	%		+ 3.54	%	1/9/2026	Fort Lauderdale	Office	$187 / sqft		68	%	3
112	Senior loan	6/26/2019		69.8		54.3		54.0		+ 3.35	%		+ 3.66	%	6/20/2024	London - UK	Office	$614 / sqft		61	%	3
113	Senior loan	3/11/2014		52.4		52.4		52.4		n/m	(7)		n/m	(7)	10/9/2021	New York	Multi	$589,065 / unit		65	%	5
114	Senior loan	12/14/2018		60.2		52.2		52.4		+ 2.90	%		+ 3.33	%	1/9/2024	Diversified - US	Industrial	$39 / sqft		57	%	2
115	Senior loan	11/30/2016		60.5		52.0		51.9		+ 3.10	%		+ 3.22	%	12/9/2023	Chicago	Retail	$1,014 / sqft		54	%	4
116	Senior loan	2/17/2021		53.0		50.9		50.6		+ 3.55	%		+ 3.75	%	3/9/2026	Miami	Multi	$290,985 / unit		64	%	3
117	Senior loan	7/30/2021		58.8		50.7		50.3		+ 2.75	%		+ 2.96	%	8/9/2026	Tampa Bay	Multi	$128,134 / unit		71	%	3
118	Senior loan	9/23/2021		49.2		49.2		49.0		+ 2.75	%		+ 2.86	%	10/1/2026	Portland	Multi	$232,938 / unit		65	%	3
119	Senior loan	8/31/2021		84.1		49.2		48.8		+ 3.05	%		+ 3.31	%	9/9/2026	Diversified - US	Retail	$186 / sqft		65	%	3
120	Senior loan	8/5/2021		56.6		49.1		48.6		+ 2.90	%		+ 3.04	%	8/9/2026	Denver	Office	$186 / sqft		70	%	3

continued…

77

	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value		Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
121	Senior loan	7/20/2021		48.0		48.0		47.6		+ 2.75	%		+ 3.09	%	8/9/2026	Los Angeles	Multi	$366,412 / unit		60	%	3
122	Senior loan	2/20/2019		52.8		45.8		45.7		+ 3.50	%		+ 3.92	%	3/9/2024	Calgary - CAN	Office	$126 / sqft		52	%	2
123	Senior loan	11/3/2017		45.0		45.0		45.0		+ 3.00	%		+ 3.26	%	11/1/2022	Los Angeles	Office	$209 / sqft		50	%	1
124	Senior loan	7/30/2021		44.9		44.9		44.7		+ 2.75	%		+ 2.86	%	8/1/2026	Portland	Multi	$62,378 / unit		64	%	3
125	Senior loan	2/21/2020		43.8		43.8		43.7		+ 2.95	%		+ 3.27	%	3/1/2025	Atlanta	Multi	$137,304 / unit		68	%	1
126	Senior loan	7/29/2021		42.1		42.1		41.8		+ 2.75	%		+ 2.95	%	8/9/2026	Las Vegas	Multi	$167,113 / unit		72	%	3
127	Senior loan	6/26/2015		41.3		41.3		41.2		+ 5.50	%		+ 5.63	%	10/8/2021	San Diego	Office	$188 / sqft		73	%	3
128	Senior loan	8/27/2021		39.8		37.4		37.0		+ 3.75	%		+ 4.29	%	9/9/2026	Diversified - US	Hospitality	$109,762 / unit		67	%	3
129	Senior loan	2/26/2021		37.0		36.1		35.8		+ 3.50	%		+ 3.85	%	3/9/2026	Austin	Multi	$196,228 / unit		64	%	3
130	Senior loan	6/9/2021		36.0		36.0		35.9		+ 3.25	%		+ 3.40	%	7/1/2024	Washington DC	Multi	$230,769 / unit		65	%	3
131	Senior loan	12/27/2016		36.0		36.0		35.9		+ 3.10	%		+ 3.26	%	7/9/2023	New York	Multi	$617,619 / unit		64	%	3
132	Senior loan	7/20/2021		35.0		35.0		34.7		+ 2.75	%		+ 3.09	%	8/9/2026	Los Angeles	Multi	$357,143 / unit		58	%	3
133	Senior loan	12/13/2019		37.1		35.0		34.9		+ 3.55	%		+ 4.49	%	6/12/2024	Diversified - FR	Industrial	$25 / sqft		55	%	1
134	Senior loan	11/19/2020		34.7		34.7		34.5		+ 3.50	%		+ 3.85	%	12/9/2025	Scottsdale	Multi	$204,248 / unit		59	%	3
135	Senior loan	10/31/2019		33.9		33.8		33.8		+ 3.25	%		+ 3.34	%	11/1/2024	Raleigh	Multi	$166,624 / unit		52	%	3
136	Senior loan	5/12/2021		36.1		33.6		33.4		+ 2.85	%		+ 3.19	%	6/9/2026	San Bernardino	Multi	$156,804 / unit		66	%	3
137	Senior loan	8/24/2021		34.5		33.0		32.9		+ 3.35	%		+ 3.68	%	3/1/2023	Dallas	Multi	$138,655 / unit		75	%	3
138	Senior loan	7/28/2021		39.8		32.6		32.2		+ 2.70	%		+ 3.08	%	8/9/2026	Los Angeles	Multi	$235,870 / unit		71	%	3
139	Senior loan	5/4/2021		33.9		32.0		31.9		+ 3.25	%		+ 3.35	%	6/1/2026	San Antonio	Multi	$82,421 / unit		69	%	3
140	Senior loan	10/31/2019		31.5		31.5		31.5		+ 3.25	%		+ 3.33	%	11/1/2024	Atlanta	Multi	$165,789 / unit		60	%	3
141	Senior loan	9/1/2021		35.6		31.2		31.0		+ 2.75	%		+ 3.10	%	9/9/2026	Phoenix	Multi	$113,043 / unit		70	%	3
142	Senior loan	10/31/2019		30.2		30.2		30.2		+ 3.25	%		+ 3.33	%	11/1/2024	Austin	Multi	$159,788 / unit		52	%	3
143	Senior loan	6/29/2021		39.5		29.1		29.0		+ 3.45	%		+ 3.63	%	7/1/2025	Memphis	Multi	$79,076 / unit		54	%	3
144	Senior loan	11/19/2020		37.8		28.3		28.0		+ 3.50	%		+ 3.90	%	12/9/2025	Chicago	Multi	$161,685 / unit		53	%	3
145	Senior loan	11/19/2020		28.2		28.1		27.9		+ 3.50	%		+ 3.85	%	12/9/2025	Charlotte	Multi	$178,019 / unit		61	%	3
146	Senior loan	11/19/2020		33.7		27.7		27.4		+ 3.50	%		+ 3.88	%	12/9/2025	Virginia Beach	Multi	$160,839 / unit		61	%	3
147	Senior loan	8/12/2021		31.6		27.3		27.1		+ 2.75	%		+ 3.10	%	9/9/2026	Phoenix	Multi	$117,466 / unit		71	%	3
148	Senior loan	10/31/2019		27.2		27.2		27.2		+ 3.25	%		+ 3.32	%	11/1/2024	Austin	Multi	$135,323 / unit		53	%	3
149	Senior loan	12/23/2019		26.2		22.8		22.7		+ 2.85	%		+ 3.23	%	1/9/2025	Miami	Office	$383 / sqft		68	%	2
150	Senior loan	8/4/2021		21.6		21.6		21.4		+ 2.75	%		+ 3.01	%	8/9/2026	Las Vegas	Multi	$180,000 / unit		73	%	3

continued…

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	Loan Type(1)	Origination Date(2)	Total Loan(3)(4)		Principal Balance(4)		Net Book Value			Cash Coupon(5)			All-in Yield(5)			Maximum Maturity(6)	Location	Property Type	Loan Per SQFT / Unit / Key	Origination LTV(2)			Risk Rating
151	Senior loan	3/8/2017		21.1		21.1		21.2			4.79	%(8)		5.12	%(8)	12/23/2021	Montreal - CAN	Office	$58 / sqft		45	%	1
152	Senior loan	7/23/2021		24.8		20.1		20.2			+ 4.60	%		+ 4.61	%	7/9/2024	New York	Condo	$451,859 / unit		51	%	3
153	Senior loan	12/15/2017		20.1		20.1		20.1			+ 4.88	%		+ 5.24	%	12/9/2021	Diversified - US	Hospitality	$303,882 / key		50	%	3
154	Senior loan	2/28/2019		15.3		14.9		14.9			+ 3.25	%		+ 3.29	%	3/1/2024	San Antonio	Multi	$64,660 / unit		75	%	2
155	Senior loan	6/25/2021		11.7		11.7		11.6			+ 2.75	%		+ 3.10	%	7/1/2026	St. Louis	Multi	$21,273 / unit		63	%	3
156	Senior loan	7/16/2021		250.6		—		—			+ 3.25	%		+ 3.55	%	2/15/2026	London - UK	Multi	$258,701 / unit		72	%	3
	CECL reserve							(130.4	)
	Loans receivable, net		$	26,257.7	$	21,520.2	$	20,276.1			+ 3.22	%		+ 3.55	%	3.3 yrs					66	%	2.8

(1) Senior loans include senior mortgages and similar credit quality loans, including related contiguous subordinate loans and pari passu participations in senior mortgage loans.

(2) Date loan was originated or acquired by us, and the LTV as of such date. Origination dates are subsequently updated to reflect material loan modifications.

(3) Total loan amount reflects outstanding principal balance as well as any related unfunded loan commitment.

(4) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. As of September 30, 2021, four loans in our portfolio have been financed with an aggregate $997.6 million of non-consolidated senior interest, which are included in the table above. Portfolio excludes our $79.2 million subordinate position in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for details of the 2018 Single Asset Securitization.

(5) The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable to each loan. As of September 30, 2021, 98% of our loans by total loan exposure earned a floating rate of interest, primarily indexed to USD LIBOR. The other 2% of our loans earned a fixed rate of interest, which we reflect as a spread over the relevant floating benchmark rates, as of September 30, 2021, for purposes of the weighted-averages. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.

(6) Maximum maturity assumes all extension options are exercised, however our loans may be repaid prior to such date.

(7) Loans are accounted for under the cost-recovery method.

(8) Loan consists of one or more floating and fixed rate tranches. Coupon and all-in yield assume applicable floating benchmark rates for weighted-average calculation.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

Investment Portfolio Net Interest Income

Generally, our business model is such that rising interest rates will increase our net income, while declining interest rates will decrease net income. As of September 30, 2021, 98% of our investments by total investment exposure earned a floating rate of interest and were financed with liabilities that pay interest at floating rates, which resulted in an amount of net equity that is positively correlated to rising interest rates, subject to the impact of interest rate floors on certain of our floating rate loans. As of September 30, 2021, the remaining 2% of our investments by total investment exposure earned a fixed rate of interest, but are financed with liabilities that pay interest at floating rates, which resulted in a negative correlation to rising interest rates to the extent of our financing. In certain instances where we have financed fixed rate assets with floating rate liabilities, we have purchased interest rate caps to limit our exposure to increases in interest rates on such liabilities.

LIBOR and certain other floating rate benchmark indices to which our floating rate loans and other loan agreements are tied, including, without limitation, the Euro Interbank Offered Rate, or EURIBOR, the Stockholm Interbank Offered Rate, or STIBOR, the Canadian Dollar Offered Rate, or CDOR, and the Australian Bank Bill Swap Reference Rate, or BBSY, or collectively, IBORs, are the subject of recent national, international and regulatory guidance and proposals for reform. On March 5, 2021, the Financial Conduct Authority of the U.K., or FCA, which has statutory powers to require panel banks to contribute to LIBOR where necessary, announced it would cease publication of certain IBORs, including one-week and two-month USD LIBOR and all tenors of GBP LIBOR, immediately after December 31, 2021 and cease the publication of the remaining tenors of USD LIBOR immediately after June 30, 2023. Additionally, the Federal Reserve Board, Federal Deposit Insurance Corporation, Office of the Comptroller of Currency, and other interagency regulatory bodies have advised U.S. banks to stop entering into new USD LIBOR based contracts by December 31, 2021.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate, or SOFR, a new index calculated using short-term repurchase agreements backed by Treasury securities, as its preferred alternative rate for USD LIBOR. In the U.K., the Bank of England’s working group on Sterling risk free rates set March 31, 2021 as the target date under which GBP LIBOR may no longer be used as the reference rate for new loan products with maturities after December 31, 2021. Market participants have started to transition to the Sterling Overnight Index Average, or SONIA, in line with guidance from the U.K. regulators. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment. Additionally, as of September 30, 2021, daily compounded SONIA is utilized as the floating benchmark rate on five of our loans and two of our credit facilities.

At this time, it is not possible to predict how markets will respond to SOFR, SONIA, or other alternative reference rates as the transition away from USD LIBOR and GBP LIBOR proceeds. Despite the LIBOR transition in other markets, benchmark rate methodologies in Europe, Canada, and Australia have been reformed and rates such as EURIBOR, STIBOR, CDOR, and BBSY may persist as International Organization of Securities Commissions, or IOSCO, compliant reference rates moving forward. However, multi-rate environments may persist in these markets as regulators and working groups have suggested market participants adopt alternative reference rates.

Refer to “Part I. Item 1A. Risk Factors—Risks Related to Our Lending and Investment Activities—The expected discontinuation of currently used financial reference rates and use of alternative replacement reference rates may adversely affect net interest income related to our loans and investments or otherwise adversely affect our results of operations, cash flows and the market value of our investments.” of our Annual Report on Form 10-K filed with the SEC on February 10, 2021.

80

The following table projects the impact on our interest income and expense, net of incentive fees, for the twelve-month period following September 30, 2021, assuming an immediate increase or decrease of both 25 and 50 basis points in the applicable interest rate benchmark by currency ($ in thousands):

					Interest Rate Sensitivity as of September 30, 2021
	Assets (Liabilities)   Sensitive to Changes in   Interest Rates(1)(2)(3)				Increase in Rates						Decrease in Rates(4)
Currency					25 Basis       Points			50 Basis       Points			25 Basis       Points			50 Basis       Points
USD	$	15,827,294		Income	$	13,422		$	29,892		$	(2,196	)	$	(2,196	)
		(12,704,353	)	Expense		(21,950	)		(44,144	)		8,417			8,417
	$	3,122,941		Net interest	$	(8,528	)	$	(14,252	)	$	6,221		$	6,221
EUR	$	3,309,622		Income	$	—		$	—		$	—		$	—
		(2,369,013	)	Expense		—			—			—			—
	$	940,609		Net interest	$	—		$	—		$	—		$	—
GBP	$	1,739,121		Income	$	2,308		$	4,786		$	(619	)	$	(619	)
		(1,163,414	)	Expense		(2,327	)		(4,654	)		619			619
	$	575,707		Net interest	$	(19	)	$	132		$	—		$	—
SEK	$	569,529		Income	$	688		$	1,827		$	—		$	—
		(455,623	)	Expense		(550	)		(1,462	)		—			—
	$	113,906		Net interest	$	138		$	365		$	—		$	—
AUD	$	176,144		Income	$	—		$	—		$	—		$	—
		(128,010	)	Expense		(256	)		(512	)		68			68
	$	48,134		Net interest	$	(256	)	$	(512	)	$	68		$	68
CAD	$	47,369		Income	$	3		$	6		$	(3	)	$	(5	)
		(50,670	)	Expense		(101	)		(203	)		101			173
	$	(3,301	)	Net interest	$	(98	)	$	(197	)	$	98		$	168
				Total net interest	$	(8,763	)	$	(14,464	)	$	6,387		$	6,457

(1) Our floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each case in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. Increases (decreases) in interest income and expense are presented net of incentive fees. Refer to Note 12 to our consolidated financial statements for additional details of our incentive fee calculation.

(2) Includes investment exposure to the 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for details of the subordinate position we own in the 2018 Single Asset Securitization.

(3) Includes amounts outstanding under secured debt, securitizations, asset-specific financings, and term loans.

(4) Decrease in rates assumes the applicable benchmark rate for each currency does not decrease below 0%.

Investment Portfolio Value

As of September 30, 2021, 2% of our investments by total investment exposure earned a fixed rate of interest and as such, the values of such investments are sensitive to changes in interest rates. We generally hold all of our investments to maturity and so do not expect to realize gains or losses on our fixed rate investment portfolio as a result of movements in market interest rates.

Risk of Non-Performance

In addition to the risks related to fluctuations in cash flows and asset values associated with movements in interest rates, there is also the risk of non-performance on floating rate assets. In the case of a significant increase in interest rates, the additional debt service payments due from our borrowers may strain the operating cash flows of the collateral real estate assets and, potentially, contribute to non-performance or, in severe cases, default. This risk is partially mitigated by various facts we consider during our underwriting process, which in certain cases include a requirement for our borrower to purchase an interest rate cap contract.

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Credit Risks

Our loans and investments are also subject to credit risk. The performance and value of our loans and investments depend upon the sponsors’ ability to operate the properties that serve as our collateral so that they produce cash flows adequate to pay interest and principal due to us. To monitor this risk, our Manager’s asset management team reviews our investment portfolios and in certain instances is in regular contact with our borrowers, monitoring performance of the collateral and enforcing our rights as necessary.

In addition, we are exposed to the risks generally associated with the commercial real estate market, including variances in occupancy rates, capitalization rates, absorption rates, and other macroeconomic factors beyond our control. We seek to manage these risks through our underwriting and asset management processes.

The COVID-19 pandemic significantly impacted the commercial real estate markets, causing reduced occupancy, requests from tenants for rent deferral or abatement, and delays in construction and development projects currently planned or underway. While the economy has improved significantly, negative conditions from COVID-19 could continue to persist and impair our borrowers’ ability to pay principal and interest due to us under our loan agreements. We maintain a robust asset management relationship with our borrowers and have utilized these relationships to address the potential impacts of the COVID-19 pandemic on our loans secured by properties experiencing cash flow pressure, most significantly hospitality assets.

We are generally encouraged by our borrowers’ response to the COVID-19 pandemic’s impacts on their properties. With limited exceptions, we believe our loan sponsors are committed to supporting assets collateralizing our loans through additional equity investments, and that we will benefit from our long-standing core business model of originating senior loans collateralized by large assets in major markets with experienced, well-capitalized institutional sponsors. Our investment portfolio’s low origination weighted-average LTV of 65.1% as of September 30, 2021, reflects significant equity value that our sponsors are motivated to protect through periods of cyclical disruption. While we believe the principal amounts of our loans are generally adequately protected by underlying collateral value, there is a risk that we will not realize the entire principal value of certain investments.

Our Manager’s portfolio monitoring and asset management operations benefit from the deep knowledge, experience, and information advantages derived from its position as part of Blackstone’s real estate platform. Blackstone Real Estate is one of the largest owners and operators of real estate in the world, with a proven track record of successfully navigating market cycles and emerging stronger through periods of volatility. The market-leading real estate expertise derived from the strength of the Blackstone platform deeply informs our credit and underwriting process, and we believe gives us the tools to expertly manage our asset portfolio and work with our borrowers throughout periods of economic stress and uncertainty.

Capital Market Risks

We are exposed to risks related to the equity capital markets, and our related ability to raise capital through the issuance of our class A common stock or other equity instruments. We are also exposed to risks related to the debt capital markets, and our related ability to finance our business through borrowings under credit facilities or other debt instruments. As a REIT, we are required to distribute a significant portion of our taxable income annually, which constrains our ability to accumulate operating cash flow and therefore requires us to utilize debt or equity capital to finance our business. We seek to mitigate these risks by monitoring the debt and equity capital markets to inform our decisions on the amount, timing, and terms of capital we raise.

Margin call provisions under our credit facilities do not permit valuation adjustments based on capital markets events, and are limited to collateral-specific credit marks generally determined on a commercially reasonable basis.

Counterparty Risk

The nature of our business requires us to hold our cash and cash equivalents and obtain financing from various financial institutions. This exposes us to the risk that these financial institutions may not fulfill their obligations to us under these various contractual arrangements. We mitigate this exposure by depositing our cash and cash equivalents and entering into financing agreements with high credit-quality institutions.

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The nature of our loans and investments also exposes us to the risk that our counterparties do not make required interest and principal payments on scheduled due dates. We seek to manage this risk through a comprehensive credit analysis prior to making an investment and active monitoring of the asset portfolios that serve as our collateral.

Currency Risk

Our loans and investments that are denominated in a foreign currency are also subject to risks related to fluctuations in currency rates. We generally mitigate this exposure by matching the currency of our foreign currency assets to the currency of the borrowings that finance those assets. As a result, we substantially reduce our exposure to changes in portfolio value related to changes in foreign currency rates.

The following table outlines our assets and liabilities that are denominated in a foreign currency (amounts in thousands):

	September 30, 2021
Foreign currency assets(1)(2)	€	2,882,412		£	1,616,393		kr	5,012,396		C$	87,450		A$	269,428
Foreign currency liabilities(1)		(2,049,226	)		(1,065,464	)		(3,996,277	)		(64,315	)		(177,684	)
Foreign currency contracts - notional		(817,642	)		(542,551	)		(999,500	)		(21,000	)		(89,500	)
Net exposure to exchange rate fluctuations	€	15,544		£	8,378		kr	16,619		C$	2,135		A$	2,244
Net exposure to exchange rate fluctuations in USD(3)	$	18,000		$	11,287		$	1,897		$	1,684		$	1,622
____________

(1)	Balances include non-consolidated senior interests of £197.3 million.
(2)	British Pound Sterling balance includes a loan tranche denominated in Euro, with an outstanding principal balance of €8.3 million as of September 30, 2021, that is hedged to British Pound Sterling exposure through a foreign currency forward contract. Refer to Note 10 to our consolidated financial statements for additional discussion of our foreign currency derivatives.
(3)	Represents the U.S. Dollar equivalent as of September 30, 2021.

Substantially all of our net asset exposure to the Euro, the British Pound Sterling, the Australian Dollar, the Canadian Dollar, and the Swedish Krona has been hedged with foreign currency forward contracts.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

An evaluation of the effectiveness of the design and operation of our “disclosure controls and procedures” (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)), as of the end of the period covered by this quarterly report on Form 10-Q was made under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer. Based upon this evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures (a) are effective to ensure that information required to be disclosed by us in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified by SEC rules and forms and (b) include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

There have been no changes in our “internal control over financial reporting” (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the period covered by this quarterly report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, we may be involved in various claims and legal actions arising in the ordinary course of business. As of September 30, 2021, we were not involved in any material legal proceedings.

ITEM 1A. RISK FACTORS

There have been no material changes to the risk factors previously disclosed under Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2020.

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

None.

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ITEM 6. EXHIBITS

10.1	First Amendment to Fifth Amended and Restated Master Repurchase Agreement, dated as of August 26, 2021, among Parlex 2 Finance, LLC, Parlex 2A Finco, LLC, Parlex 2 UK Finco, LLC, Parlex 2 EUR Finco, LLC, Parlex 2 AU Finco, LLC, Parlex 2 CAD Finco, LLC, Wispar 5 Finco, LLC and Citibank, N.A.
31.1	Certification of Chief Executive Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1 +	Certification of 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 of 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	XBRL Instance Document – the instance document does not appear in the interactive data file because its 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.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

+ This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liability of that Section. Such exhibit shall not be deemed incorporated into any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act.

The agreements and other documents filed as exhibits to this report are not intended to provide factual information or other disclosure other than with respect to the terms of the agreements or other documents themselves, and you should not rely on them for that purpose. In particular, any representations and warranties made by us in these agreements or other documents were made solely within the specific context of the relevant agreement or document and may not describe the actual state of affairs as of the date they were made or at any other time.

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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.

	BLACKSTONE MORTGAGE TRUST, INC.
October 27, 2021	/s/ Katharine A. Keenan
Date	Katharine A. Keenan
	Chief Executive Officer
	(Principal Executive Officer)
October 27, 2021	/s/ Anthony F. Marone, Jr.
Date	Anthony F. Marone, Jr.
	Chief Financial Officer
	(Principal Financial Officer and
	Principal Accounting Officer)

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EX-10.1

Exhibit 10.1

FIRST AMENDMENT TO FIFTH AMENDED AND RESTATED MASTER REPURCHASE AGREEMENT

THIS FIRST AMENDMENT TO FIFTH AMENDED AND RESTATED MASTER REPURCHASE AGREEMENT (this “Amendment”), dated as of August 26, 2021 (the “Effective Date”), is made by and among PARLEX 2 FINANCE, LLC, a Delaware limited liability company (“Parlex 2”), PARLEX 2A FINCO, LLC, a Delaware limited liability company (“Parlex 2A”), PARLEX 2 UK FINCO, LLC, a Delaware limited liability company (“Parlex 2 UK”), PARLEX 2 EUR FINCO, LLC, a Delaware limited liability company (“Parlex 2 EUR”), PARLEX 2 AU FINCO, LLC, a Delaware limited liability company (“Parlex 2 AU”), PARLEX 2 CAD FINCO, LLC, a Delaware limited liability company (“Parlex 2 CAD”, and together with Parlex 2, Parlex 2A, Parlex 2 UK, Parlex 2 EUR and Parlex 2 AU, “Existing Sellers”), WISPAR 5 FINCO, LLC, a Delaware limited liability company (“New Seller”, and together with Existing Sellers and any other Person when such Person joins as a Seller hereunder from time to time, individually and/or collectively as the context may require, “Seller”), and CITIBANK, N.A., a national banking association (“Buyer”).

W I T N E S S E T H:

WHEREAS, Existing Sellers and Buyer have entered into that certain Fifth Amended and Restated Master Repurchase Agreement, dated as of April 16, 2021 (as the same may be amended, supplemented, extended, restated, replaced or otherwise modified from time to time, the “Repurchase Agreement”);

WHEREAS, all capitalized terms used herein and not otherwise defined shall have the respective meanings set forth in the Repurchase Agreement;

WHEREAS, Seller and Buyer entered into a Joinder Agreement, dated as of the date hereof (the “New Seller Joinder”), pursuant to which New Seller has been admitted to the Repurchase Agreement and the other Transaction Documents as a Seller (as such term is defined in the Repurchase Agreement) in accordance with the New Seller Joinder;

WHEREAS, in connection with the New Seller Joinder, Seller and Buyer desire to modify certain terms and provisions of the Repurchase Agreement as set forth herein.

NOW, THEREFORE, in consideration of ten dollars ($10) and for other good and valuable consideration, the receipt and legal sufficiency of which are hereby acknowledged, Seller and Buyer covenant and agree as follows as of the Effective Date:

1. Modification of Repurchase Agreement. The Repurchase Agreement is hereby modified as of the Effective Date as follows:

(a) The following definitions in Section 2 of the Repurchase Agreement are hereby deleted in their entirety and the following corresponding definitions are substituted therefor:

“Blocked Account Agreement” shall mean, individually or collectively, as the context may require, (i) that certain Deposit Account Control Agreement, dated as of June 12, 2013, among Buyer, Parlex 2, Servicer and the Depository, relating to the Cash

Management Account established by Parlex 2, as the same may be amended, modified and/or restated from time to time, (ii) that certain Deposit Account Control Agreement, dated as of January 31, 2014, among Buyer, Parlex 2A, Servicer and the Depository, relating to the Cash Management Account established by Parlex 2A, as the same may be amended, modified and/or restated from time to time, (iii) that certain Deposit Account Control Agreement, dated as of the Second Amendment and Restatement Date, among Buyer, Parlex 2 UK, Servicer and the Depository, relating to the Cash Management Account established by Parlex 2 UK, as the same may be amended, modified and/or restated from time to time, (iv) that certain Deposit Account Control Agreement, dated as of the Second Amendment and Restatement Date, among Buyer, Parlex 2 EUR, Servicer and the Depository, relating to the Cash Management Account established by Parlex 2 EUR, as the same may be amended, modified and/or restated from time to time, (v) that certain Deposit Account Control Agreement, dated as of the Third Amendment and Restatement Date, among Buyer, Parlex 2 AU, Servicer and the Depository, relating to the Cash Management Account established by Parlex 2 AU, as the same may be amended, modified and/or restated from time to time, (vi) that certain Deposit Account Control Agreement, dated as of the Fourth Amendment and Restatement Date, among Buyer, Parlex 2 CAD, Servicer and the Depository, relating to the Cash Management Account established by Parlex 2 CAD, as the same may be amended, modified and/or restated from time to time, (vii) that certain Deposit Account Control Agreement, dated as of August 26, 2021, among Buyer, Wispar 5, Midland Loan Services, a division of PNC Bank, National Association and the Depository, relating to the Cash Management Account established by Wispar 5, as the same may be amended, modified and/or restated from time to time, and (viii) each additional Deposit Account Control Agreement entered into among a new Seller admitted to this Agreement pursuant to a Joinder Agreement, Buyer, Servicer and the Depository and relating to a Cash Management Account established pursuant to this Agreement by such new Seller, as the same may be amended, modified and/or restated from time to time.

“Change of Control” shall mean any of the following events shall have occurred without the prior approval of Buyer:

(i) with respect to each Seller other than Wispar 5, Guarantor shall no longer own, directly or indirectly, 100% of the ownership interest in such Seller and Control, directly or indirectly, such Seller;

(ii) with respect to Wispar 5, Guarantor shall no longer own, directly or indirectly, 80% of the ownership interest in Wispar 5 and Control, directly or indirectly, Wispar 5;

(iii) any merger, reorganization or consolidation of Guarantor where Guarantor is not the surviving entity; or

(iv) any conveyance, transfer, lease or disposal of all or substantially all assets of any Seller or Guarantor to any Person or entity other than an Affiliate of such entity.

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“Seller” shall mean, collectively, Parlex 2, Parlex 2A, Parlex 2 UK, Parlex 2 EUR, Parlex 2 AU, Parlex 2 CAD, Wispar 5 and each other Person as and when same may be approved by Buyer in its sole discretion from time to time and admitted to this Agreement as a Seller by a joinder agreement executed and delivered by Buyer, Seller and such approved other Seller in the form of Exhibit XI to this Agreement (a “Joinder Agreement”).

“Servicer” shall mean: (x) Midland Loan Services, a division of PNC Bank, National Association, (y) with respect to the Purchased Loans sold to Buyer by Wispar Seller, (a) Walker & Dunlop, LLC, a Delaware limited liability company, as Servicer for such Purchased Loan, and (b) Midland Loan Services, a division of PNC Bank, National Association, as sub-servicer for such Purchased Loan, or (z) any other third party servicer selected by Seller and approved by Buyer in its sole discretion; provided, that notwithstanding the foregoing, such other third party servicer selected by Seller shall be approved by Buyer in its reasonable discretion, so long as such Person’s primary servicer rating shall be at least “above average” by Standard & Poor’s Ratings Service.

“Servicing Agreement” shall mean, individually or collectively, as the context may require (a) other than with respect to each CLO Participation issued pursuant to a CLO Participation Agreement, (i) that certain Servicing Agreement, dated as of June 12, 2013, among Parlex 2, Buyer and Servicer, as the same may be amended, modified and/or restated from time to time, (ii) that certain Servicing Agreement, dated as of January 31, 2014, among Parlex 2A, Buyer, and Servicer, as the same may be amended, modified and/or restated from time to time, (iii) that certain Servicing Agreement, dated as of the Second Amendment and Restatement Date, among Parlex 2 UK, Buyer, and Servicer, as the same may be amended, modified and/or restated from time to time, (iv) that certain Servicing Agreement, dated as of the Second Amendment and Restatement Date, among Parlex 2 EUR, Buyer, and Servicer, as the same may be amended, modified and/or restated from time to time, (v) that certain Servicing Agreement, dated as of the Third Amendment and Restatement Date, among Parlex 2 AU, Buyer, and Servicer, as the same may be amended, modified and/or restated from time to time, (vi) that certain Servicing Agreement, dated as of the Fourth Amendment and Restatement Date, among Parlex 2 CAD, Buyer, and Servicer, as the same may be amended, modified and/or restated from time to time, (vii) with respect to the Purchased Loans sold to Buyer by Wispar Seller, (A) for the servicing of such Purchased Loans, that certain Origination and Loan Administration Agreement, dated as of April 24, 2017, between WD-BXMT Lending LLC and Walker & Dunlop, LLC, as the same may be amended, modified and/or restated from time to time, and (B) for the sub-servicing of such Purchased Loans, that certain Servicing Agreement, dated as of August 26, 2021, among Wispar 5, Buyer and Midland Loan Services, a division of PNC Bank, National Association, as the same may be amended, modified and/or restated from time to time, and (viii) any other servicing agreement entered into by a Seller, Buyer and any Servicer approved by Buyer for the servicing of Purchased Loans, as the same may be amended, modified and/or restated from time to time, and (b) with respect to each CLO Participation issued pursuant to a CLO Participation Agreement, (x) for so long as the corresponding CLO Non-Controlling Participation is an asset of the applicable CLO, the corresponding CLO Servicing Agreement and (y) at any time such corresponding CLO Non-Controlling Participation is not an asset of such CLO, the servicing agreement entered into in accordance with the applicable CLO Participation Agreement.

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(b) The following defined term is hereby added to Section 2 of the Repurchase Agreement in its appropriate alphabetical location as follows:

“Wispar 5” shall mean Wispar 5 Finco, LLC, a Delaware limited liability company.

(c) Section 5(a) of the Repurchase Agreement is hereby deleted in its entirety and replaced with the following:

“(a) Each Cash Management Account shall be established at the Depository, which (i) in the case of the Cash Management Account established by Parlex 2, shall have been established on June 12, 2013, (ii) in the case of the Cash Management Account established by Parlex 2A, shall have been established on January 31, 2014, (iii) in the case of the Cash Management Account established by Parlex 2 UK, shall have been established on the Second Amendment and Restatement Date, (iv) in the case of the Cash Management Account established by Parlex 2 EUR, shall have been established on the Second Amendment and Restatement Date, (v) in the case of the Cash Management Account established by Parlex 2 AU, shall have been established on the Third Amendment and Restatement Date, (vi) in the case of the Cash Management Account established by Parlex 2 CAD, shall have been established on the Fourth Amendment and Restatement Date, (vi) in the case of the Cash Management Account established by Wispar 5, shall have been established on August 26, 2021, and (viii) in the case of any Cash Management Account established by any Person that joins as a Seller under this Agreement from time to time, shall be established concurrently with the execution and delivery of the Joinder Agreement by which such Person joins as a Seller under this Agreement. Buyer shall have sole dominion and control over each Cash Management Account. All Income in respect of the Purchased Loans and any payments in respect of associated Hedging Transactions, as well as any interest received from the reinvestment of such Income, shall be deposited directly into the applicable Cash Management Account and shall be remitted by the Depository in accordance with the provisions of the applicable Blocked Account Agreement and Servicing Agreement (which remittances shall be in conformity to the applicable provisions of Sections 5(d), 5(e), 5(f) and 14(b)(iii) of this Agreement).”

(d) Section 29(a) of the Repurchase Agreement is hereby modified by the addition of the following after the final sentence of such section:

“With respect to the Purchased Loans sold to Buyer by Wispar Seller, Buyer consents to the appointment of Walker & Dunlop, LLC, as Servicer, and Midland Loan Services, a division of PNC Bank, National Association, as sub-servicer, for purposes of servicing such Purchased Loans and, with respect to Wispar Seller, the initial Servicing Agreement with Walker & Dunlop, LLC, as initial Servicer.”

4

(e) Section 29(d) of the Repurchase Agreement is hereby deleted in its entirety and replaced with the following:

“(d) Seller shall not employ or permit Servicer to employ sub-servicers to service the Purchased Loans without (x) in the case of U.S. Purchased Loans only, the prior written approval of Buyer in its sole discretion, except to the extent permitted in the applicable Servicing Agreement so long as, such employment of a sub-servicer constitutes a delegation of duties by Servicer which does not relieve Servicer of its primary obligation to perform such duties or (y) in the case of Foreign Purchased Loans, prior to consummating any such appointment, a consultation with Buyer. With respect to the Purchased Loans sold to Buyer by Wispar Seller, Buyer consents to the appointment of Walker & Dunlop, LLC, as Servicer, and Midland Loan Services, a division of PNC Bank, National Association, as sub-servicer, for purposes of servicing such Purchased Loan.”

2. Seller’s Representations. Seller has taken all necessary action to authorize the execution, delivery and performance of this Amendment. This Amendment has been duly executed and delivered by or on behalf of Seller and constitutes the legal, valid and binding obligation of Seller enforceable against Seller in accordance with its terms subject to bankruptcy, insolvency, and other limitations on creditors’ rights generally and to equitable principles. No Event of Default has occurred and is continuing, and no Event of Default will occur as a result of the execution, delivery and performance by Seller of this Amendment. Any consent, approval, authorization, order, registration or qualification of or with any Governmental Authority required for the execution, delivery and performance by Seller of this Amendment has been obtained and is in full force and effect (other than consents, approvals, authorizations, orders, registrations or qualifications that if not obtained, are not reasonably likely to have a Material Adverse Effect).

3. Full Force and Effect. Except as expressly modified hereby, all of the terms, covenants and conditions of the Repurchase Agreement and the other Transaction Documents remain unmodified and in full force and effect and are hereby ratified and confirmed by Seller. Any inconsistency between this Amendment and the Repurchase Agreement (as it existed before this Amendment) shall be resolved in favor of this Amendment, whether or not this Amendment specifically modifies the particular provision(s) in the Repurchase Agreement inconsistent with this Amendment. All references to the “Agreement” in the Repurchase Agreement or to the “Repurchase Agreement” in any of the other Transaction Documents shall mean and refer to the Repurchase Agreement as modified and amended hereby.

4. No Waiver. The execution, delivery and effectiveness of this Amendment shall not operate as a waiver of any right, power or remedy of Buyer under the Repurchase Agreement, any of the other Transaction Documents or any other document, instrument or agreement executed and/or delivered in connection therewith.

5. Headings. Each of the captions contained in this Amendment are for the convenience of reference only and shall not define or limit the provisions hereof.

6. Counterparts. This Amendment may be executed in any number of counterparts, and all such counterparts shall together constitute the same agreement. Signatures delivered by email (in PDF format) shall be considered binding with the same force and effect as original signatures

5

7. Governing Law. This Amendment shall be governed in accordance with the terms and provisions of Section 20 of the Repurchase Agreement.

[No Further Text on this Page; Signature Pages Follow]

6

IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed by their duly authorized representatives as of the day and year first above written and effective as of the Effective Date.

BUYER:
CITIBANK, N.A.
By:	/s/ Richard B. Schlenger
Name:	Richard B. Schlenger
Title:	Authorized Signatory

[SIGNATURES CONTINUE ON NEXT PAGE]

[Signature Page to First Amendment to Fifth Amended and Restated Master Repurchase Agreement]

SELLER:
PARLEX 2 FINANCE, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer
PARLEX 2A FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer
PARLEX 2 UK FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer
PARLEX 2 EUR FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer

[SIGNATURES CONTINUE ON NEXT PAGE]

[Signature Page to First Amendment to Fifth Amended and Restated Master Repurchase Agreement]

PARLEX 2 AU FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer
PARLEX 2 CAD FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer
WISPAR 5 FINCO, LLC, a Delaware limited liability company
By:	/s/ Douglas N. Armer
	Name:	Douglas N. Armer
	Title:	Executive Vice President, Capital Markets and Treasurer

[Signature Page to First Amendment to Fifth Amended and Restated Master Repurchase Agreement]

EX-31.1

Exhibit 31.1

CERTIFICATION

PURSUANT TO 17 CFR 240.13a-14

PROMULGATED UNDER

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Katharine A. Keenan, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Blackstone Mortgage Trust, 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: October 27, 2021

/s/ Katharine A. Keenan

Katharine A. Keenan

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

PURSUANT TO 17 CFR 240.13a-14

PROMULGATED UNDER

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Anthony F. Marone, Jr., certify that:

1. I have reviewed this quarterly report on Form 10-Q of Blackstone Mortgage Trust, 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: October 27, 2021

/s/ Anthony F. Marone

Anthony F. Marone, Jr.

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Blackstone Mortgage Trust, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Katharine A. Keenan, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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

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

/s/ Katharine A. Keenan

Katharine A. Keenan

Chief Executive Officer

October 27, 2021

This certification accompanies each Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been provided by the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Blackstone Mortgage Trust, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Anthony F. Marone, Jr., Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

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

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

/s/ Anthony F. Marone

Anthony F. Marone, Jr.

Chief Financial Officer

October 27, 2021

This certification accompanies each Report pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended.

A signed original of this written statement required by Section 906 has been provided by the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 20, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0001061630
Current Fiscal Year End Date	--12-31
Document Period End Date	Sep. 30, 2021
Trading Symbol	BXMT
Entity Registrant Name	Blackstone Mortgage Trust, Inc.
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		157,080,951
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity File Number	001-14788
Entity Tax Identification Number	94-6181186
Entity Incorporation, State or Country Code	MD
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Address, Address Line One	345 Park Avenue, 24th Floor
Entity Address, City or Town	New York
Entity Address, Postal Zip Code	10154
City Area Code	212
Local Phone Number	655-0220
Title of 12(b) Security	Class A common stock
Security Exchange Name	NYSE
Entity Address, State or Province	NY

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 211,180	$ 289,970
Loans receivable	20,406,466	16,572,715
Current expected credit loss reserve	(130,388)	(173,549)
Loans receivable, net	20,276,078	16,399,166
Other assets	218,614	269,819
Total Assets	20,705,872	16,958,955
Liabilities and Equity
Secured debt, net	11,170,330	7,880,536
Securitized debt obligations, net	2,836,049	2,922,499
Asset-specific debt, net	320,895	391,269
Term loans, net	1,329,637	1,041,704
Convertible notes, net	618,985	616,389
Other liabilities	159,424	202,327
Total Liabilities	16,435,320	13,054,724
Commitments and contingencies
Equity
Class A common stock, $0.01 par value, 400,000,000 shares authorized, 157,015,689 and 146,780,031 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively	1,570	1,468
Additional paid-in capital	5,039,384	4,702,713
Accumulated other comprehensive income	9,874	11,170
Accumulated deficit	(814,278)	(829,284)
Total Blackstone Mortgage Trust, Inc. stockholders' equity	4,236,550	3,886,067
Non-controlling interests	34,002	18,164
Total Equity	4,270,552	3,904,231
Total Liabilities and Equity	$ 20,705,872	$ 16,958,955

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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Common stock, par value in dollars per share	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	157,015,689	146,780,031
Common stock, shares outstanding	157,015,689	146,780,031
Assets	$ 20,705,872	$ 16,958,955
Liabilities	16,435,320	13,054,724
Variable Interest Entity, Primary Beneficiary [Member]
Assets	3,503,362	3,587,950
Liabilities	$ 2,837,680	$ 2,924,603

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Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income from loans and other investments
Interest and related income	$ 200,114	$ 193,939	$ 583,941	$ 590,797
Less: Interest and related expenses	82,690	78,978	243,413	268,070
Income from loans and other investments, net	117,424	114,961	340,528	322,727
Other expenses
Management and incentive fees	19,342	18,985	60,094	58,758
General and administrative expenses	10,841	11,242	32,108	34,320
Total other expenses	30,183	30,227	92,202	93,078
(Increase) decrease in current expected credit loss reserve	(2,767)	6,055	49,432	(173,466)
Income before income taxes	84,474	90,789	297,758	56,183
Income tax provision	70	20	346	192
Net income	84,404	90,769	297,412	55,991
Net income attributable to non-controlling interests	(647)	(909)	(2,158)	(1,937)
Net income attributable to Blackstone Mortgage Trust, Inc.	$ 83,757	$ 89,860	$ 295,254	$ 54,054
Net income per share of common stock basic and diluted	$ 0.56	$ 0.61	$ 2.00	$ 0.39
Weighted-average shares of common stock outstanding, basic and diluted	149,214,819	146,484,651	147,971,737	140,157,620

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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net income	$ 84,404	$ 90,769	$ 297,412	$ 55,991
Other comprehensive income
Unrealized (loss) gain on foreign currency translation	(46,952)	62,656	(66,356)	14,488
Realized and unrealized gain (loss) on derivative financial instruments	46,083	(61,936)	65,059	11,390
Other comprehensive (loss) income	(869)	720	(1,297)	25,878
Comprehensive income	83,535	91,489	296,115	81,869
Comprehensive income attributable to non-controlling interests	(647)	(909)	(2,158)	(1,937)
Comprehensive income attributable to Blackstone Mortgage Trust, Inc.	$ 82,888	$ 90,580	$ 293,957	$ 79,932

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Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Adoption of ASU 2016-13, see Note 2 [Member]	Class A Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Accumulated Deficit [Member] Adoption of ASU 2016-13, see Note 2 [Member]	Stockholders' Equity [Member]	Stockholders' Equity [Member] Adoption of ASU 2016-13, see Note 2 [Member]	Non-controlling Interests [Member]	Non-controlling Interests [Member] Adoption of ASU 2016-13, see Note 2 [Member]
Balance at Dec. 31, 2019	$ 3,784,681		$ 1,350	$ 4,370,014	$ (16,233)	$ (592,548)		$ 3,762,583		$ 22,098
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019		$ (17,650)					$ (17,565)		$ (17,565)		$ (85)
Shares of class A common stock issued, net	4		4					4
Restricted class A common stock earned	8,550			8,550				8,550
Dividends reinvested	174			162		12		174
Deferred directors' compensation	125			125				125
Other comprehensive income (loss)	34,481				34,481			34,481
Net (loss) income	(53,283)					(53,350)		(53,350)		67
Dividends declared on common stock and deferred stock units, $0.62 per share	(84,082)					(84,082)		(84,082)
Contributions from non-controlling interests	8,108									8,108
Distributions to non-controlling interests	(6,681)									(6,681)
Balance at Mar. 31, 2020	3,674,427		1,354	4,378,851	18,248	(747,533)		3,650,920		23,507
Balance at Dec. 31, 2019	3,784,681		1,350	4,370,014	(16,233)	(592,548)		3,762,583		22,098
Balance (Accounting Standards Update 2016-13 [Member]) at Dec. 31, 2019		$ (17,650)					$ (17,565)		$ (17,565)		$ (85)
Other comprehensive income (loss)	25,878
Net (loss) income	55,991
Balance at Sep. 30, 2020	3,903,952		1,462	4,693,982	9,645	(821,725)		3,883,364		20,588
Balance at Mar. 31, 2020	3,674,427		1,354	4,378,851	18,248	(747,533)		3,650,920		23,507
Shares of class A common stock issued, net	297,599		108	297,491				297,599
Restricted class A common stock earned	8,527			8,527				8,527
Dividends reinvested	178			165		13		178
Deferred directors' compensation	125			125				125
Other comprehensive income (loss)	(9,323)				(9,323)			(9,323)
Net (loss) income	18,505					17,544		17,544		961
Dividends declared on common stock and deferred stock units, $0.62 per share	(90,807)					(90,807)		(90,807)
Distributions to non-controlling interests	(3,447)									(3,447)
Balance at Jun. 30, 2020	3,895,784		1,462	4,685,159	8,925	(820,783)		3,874,763		21,021
Restricted class A common stock earned	8,524			8,524				8,524
Dividends reinvested	188			174		14		188
Deferred directors' compensation	125			125				125
Other comprehensive income (loss)	720				720			720
Net (loss) income	90,769					89,860		89,860		909
Dividends declared on common stock and deferred stock units, $0.62 per share	(90,816)					(90,816)		(90,816)
Contributions from non-controlling interests	323									323
Distributions to non-controlling interests	(1,665)									(1,665)
Balance at Sep. 30, 2020	3,903,952		1,462	4,693,982	9,645	(821,725)		3,883,364		20,588
Balance at Dec. 31, 2020	3,904,231		1,468	4,702,713	11,170	(829,284)		3,886,067		18,164
Shares of class A common stock issued, net	2		2					2
Restricted class A common stock earned	7,958			7,958				7,958
Dividends reinvested	204			204				204
Deferred directors' compensation	125			125				125
Other comprehensive income (loss)	114				114			114
Net (loss) income	80,540					79,902		79,902		638
Dividends declared on common stock and deferred stock units, $0.62 per share	(91,349)					(91,349)		(91,349)
Contributions from non-controlling interests	13,448									13,448
Distributions to non-controlling interests	(11,180)									(11,180)
Balance at Mar. 31, 2021	3,904,093		1,470	4,711,000	11,284	(840,731)		3,883,023		21,070
Balance at Dec. 31, 2020	3,904,231		1,468	4,702,713	11,170	(829,284)		3,886,067		18,164
Other comprehensive income (loss)	(1,297)
Net (loss) income	297,412
Balance at Sep. 30, 2021	4,270,552		1,570	5,039,384	9,874	(814,278)		4,236,550		34,002
Balance at Mar. 31, 2021	3,904,093		1,470	4,711,000	11,284	(840,731)		3,883,023		21,070
Restricted class A common stock earned	7,895			7,895				7,895
Dividends reinvested	211			211				211
Deferred directors' compensation	125			125				125
Other comprehensive income (loss)	(541)				(541)			(541)
Net (loss) income	132,468					131,595		131,595		873
Dividends declared on common stock and deferred stock units, $0.62 per share	(91,347)					(91,347)		(91,347)
Contributions from non-controlling interests	14,745									14,745
Distributions to non-controlling interests	(10,694)									(10,694)
Balance at Jun. 30, 2021	3,956,955		1,470	4,719,231	10,743	(800,483)		3,930,961		25,994
Shares of class A common stock issued, net	311,955		100	311,855				311,955
Restricted class A common stock earned	7,907			7,907				7,907
Dividends reinvested	218			218				218
Deferred directors' compensation	173			173				173
Other comprehensive income (loss)	(869)				(869)			(869)
Net (loss) income	84,404					83,757		83,757		647
Dividends declared on common stock and deferred stock units, $0.62 per share	(97,552)					(97,552)		(97,552)
Contributions from non-controlling interests	19,068									19,068
Distributions to non-controlling interests	(11,707)									(11,707)
Balance at Sep. 30, 2021	$ 4,270,552		$ 1,570	$ 5,039,384	$ 9,874	$ (814,278)		$ 4,236,550		$ 34,002

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Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Statement of Stockholders' Equity [Abstract]
Dividends declared on common stock, per share	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 1.86	$ 1.86

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income	$ 297,412	$ 55,991
Adjustments to reconcile net income to net cash provided by operating activities
Satisfaction of management and incentive fees in stock	0	19,277
Non-cash compensation expense	24,184	25,978
Amortization of deferred fees on loans and debt securities	(43,299)	(43,516)
Amortization of deferred financing costs and premiums/ discounts on debt obligations	29,698	28,122
(Decrease) increase in current expected credit loss reserve	(49,432)	173,466
Unrealized gain on assets denominated in foreign currencies, net	(7,088)	(648)
Unrealized gain on derivative financial instruments, net	(3,298)	(754)
Realized loss (gain) on derivative financial instruments, net	5,483	(481)
Changes in assets and liabilities, net
Other assets	(12,106)	8,713
Other liabilities	13,468	(4,852)
Net cash provided by operating activities	255,022	261,296
Cash flows from investing activities
Origination and fundings of loans receivable	(7,449,491)	(1,489,101)
Principal collections and sales proceeds from loans receivable and debt securities	3,423,460	1,358,640
Origination and exit fees received on loans receivable	79,971	14,215
Receipts under derivative financial instruments	44,428	87,286
Payments under derivative financial instruments	(75,458)	(98,216)
Collateral deposited under derivative agreements	(94,060)	(255,830)
Return of collateral deposited under derivative agreements	145,110	277,280
Net cash used in investing activities	(3,926,040)	(105,726)
Cash flows from financing activities
Borrowings under secured debt	7,701,481	2,317,616
Repayments under secured debt	(4,239,614)	(3,506,154)
Proceeds from issuance of securitized debt obligations	803,750	1,243,125
Repayment of securitized debt obligations	(888,763)	(253,260)
Borrowings under asset-specific debt	106,443	111,225
Repayments under asset-specific debt	(178,073)	(82,754)
Net proceeds from issuance of term loans	298,500	315,438
Repayments of term loans	(10,060)	(6,428)
Payment of deferred financing costs	(29,339)	(34,726)
Contributions from non-controlling interests	47,261	8,431
Distributions to non-controlling interests	(33,581)	(11,793)
Net proceeds from issuance of class A common stock	311,955	278,322
Dividends paid on class A common stock	(273,311)	(258,264)
Net cash provided by financing activities	3,616,649	120,778
Net (decrease) increase in cash, cash equivalents, and restricted cash	(54,369)	276,348
Cash, cash equivalents, and restricted cash at beginning of period	289,970	150,090
Effects of currency translation on cash, cash equivalents, and restricted cash	579	590
Cash, cash equivalents, and restricted cash at end of period	236,180	427,028
Supplemental disclosure of cash flows information
Payments of interest	(207,293)	(242,564)
Receipts (payments) of income taxes	107	(146)
Supplemental disclosure of non-cash investing and financing activities
Dividends declared, not paid	(97,552)	(90,642)
Satisfaction of management and incentive fees in stock	0	19,277
Loan principal payments held by servicer, net	$ 299	$ 3,235

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Organization

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

1. ORGANIZATION

References herein to “Blackstone Mortgage Trust,” “Company,” “we,” “us” or “our” refer to Blackstone Mortgage Trust, Inc. and its subsidiaries unless the context specifically requires otherwise.

Blackstone Mortgage Trust is a real estate finance company that originates senior loans collateralized by commercial real estate in North America, Europe, and Australia. Our portfolio is composed primarily of loans secured by high-quality, institutional assets in major markets, sponsored by experienced, well-capitalized real estate investment owners and operators. These senior loans are capitalized by accessing a variety of financing options, including borrowing under our credit facilities, issuing CLOs or single-asset securitizations, and syndicating senior loan participations, depending on our view of the most prudent financing option available for each of our investments. We are not in the business of buying or trading securities, and the only securities we own are the retained interests from our securitization financing transactions, which we have not financed. We are externally managed by BXMT Advisors L.L.C., or our Manager, a subsidiary of Blackstone Inc., or Blackstone, and are a real estate investment trust, or REIT, traded on the New York Stock Exchange, or NYSE, under the symbol “BXMT.” Our principal executive offices are located at 345 Park Avenue, 24th Floor, New York, New York 10154. We were incorporated in Maryland in 1998, when we reorganized from a California common law business trust into a Maryland corporation.

We conduct our operations as a REIT for U.S. federal income tax purposes. We generally will not be subject to U.S. federal income taxes on our taxable income to the extent that we annually distribute all of our net taxable income to stockholders and maintain our qualification as a REIT. We also operate our business in a manner that permits us to maintain an exclusion from registration under the Investment Company Act of 1940, as amended. We are organized as a holding company and conduct our business primarily through our various subsidiaries.     

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP, for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. The consolidated financial statements, including the notes thereto, are unaudited and exclude some of the disclosures required in audited financial statements. We believe we have made all necessary adjustments, consisting of only normal recurring items, so that the consolidated financial statements are presented fairly and that estimates made in preparing our consolidated financial statements are reasonable and prudent. The operating results presented for interim periods are not necessarily indicative of the results that may be expected for any other interim period or for the entire year. The accompanying unaudited consolidated interim financial statements should be read in conjunction with the audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the Securities and Exchange Commission, or the SEC.

Basis of Presentation

The accompanying consolidated financial statements include, on a consolidated basis, our accounts, the accounts of our wholly-owned subsidiaries, majority-owned subsidiaries, and variable interest entities, or VIEs, of which we are the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

Certain reclassifications have been made in the presentation of the prior period statements of changes in equity, statements of cash flows, and loans receivable in Note 3 to conform to the current period presentation.

Principles of Consolidation

We consolidate all entities that we control through either majority ownership or voting rights. In addition, we consolidate all VIEs of which we are considered the primary beneficiary. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest and/or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with (i) the power to direct the activities that most significantly affect the VIE’s economic performance and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE.

In the third quarter of 2018, we contributed a loan to a single asset securitization vehicle, or the 2018 Single Asset Securitization, which is a VIE, and invested in the related subordinate position. We are not the primary beneficiary of the VIE because we do not have the power to direct the activities that most significantly affect the VIE’s economic performance and, therefore, do not consolidate the 2018 Single Asset Securitization on our balance sheet. We have classified the subordinate position we own as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. Refer to Note 16 for additional discussion of our VIEs.

In April 2017, we entered into a joint venture, or our Multifamily Joint Venture, with Walker & Dunlop Inc. to originate, hold, and finance multifamily bridge loans. Pursuant to the terms of the agreements governing the joint venture, Walker & Dunlop contributed 15% of the venture’s equity capital and we contributed 85%. We consolidate the Multifamily Joint Venture as we have a controlling financial interest. The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are owned by Walker & Dunlop. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on Walker & Dunlop’s pro rata ownership of our Multifamily Joint Venture.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The novel coronavirus, or COVID-19 has significantly impacted the global economy since the beginning of 2020 and has, among other things, created disruption in global supply chains, increased rates of unemployment and adversely impacted many industries, including industries related to the collateral underlying certain of our loans. During the nine months ended September 30, 2021, the global economy has, with certain setbacks, begun reopening and wider distribution of vaccines and easing of travel and other restrictions appear to be encouraging greater economic activity. Nonetheless, the recovery could remain uneven, particularly given uncertainty with respect to the distribution and acceptance of the vaccines and their effectiveness with respect to new variants of the virus. As a result, we are still unable to predict when normal economic activity and business operations will fully resume. We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of September 30, 2021, however uncertainty over the ultimate impact COVID-19 will have on the global economy generally, and our business in particular, makes any estimates and assumptions as of September 30, 2021 inherently less certain than they would be absent the current and potential impacts of COVID-19. Actual results may ultimately differ materially from those estimates.    

Revenue Recognition

Interest income from our loans receivable portfolio and debt securities is recognized over the life of each investment using the effective interest method and is recorded on the accrual basis. Recognition of fees, premiums, and discounts associated with these investments is deferred and recorded over the term of the loan or debt security as an adjustment to yield. Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful. Interest received is then recorded as a reduction in the outstanding principal balance until accrual is resumed when the loan becomes contractually current and performance is demonstrated to be resumed. In addition, for loans we originate, the related origination expenses are deferred and recognized as a component of interest income, however expenses related to loans we acquire are included in general and administrative expenses as incurred.

Cash, Cash Equivalents, and Restricted Cash

Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less. We may have bank balances in excess of federally insured amounts; however, we deposit our cash and cash equivalents with high credit-quality institutions to minimize credit risk exposure. We have not experienced, and do not expect, any losses on our cash or cash equivalents.

Restricted cash represents cash collateral held within our 2021 FL4 collateralized loan obligation and is included in Other Assets on our consolidated balance sheets. See Note 6 for further discussion of the 2021 FL4 collateralized loan obligation.

The following table provides a reconciliation of cash, cash equivalents, and restricted cash on our consolidated balance sheets to the total amount shown on our consolidated statements of cash flows ($ in thousands):

	September 30, 2021		September 30, 2020
Cash and cash equivalents	$	211,180	$	427,028
2021 FL4 CLO restricted cash		25,000		—
Total cash, cash equivalents, and restricted cash shown in our consolidated statements of cash flows	$	236,180	$	427,028

Through our subsidiaries, we have oversight of certain servicing accounts held with third-party servicers, or Servicing Accounts, which relate to borrower escrows and other cash balances aggregating $426.6 million and $384.6 million as of September 30, 2021 and December 31, 2020, respectively. This cash is maintained in segregated bank accounts, and these amounts are not included in the assets and liabilities presented in our consolidated balance sheets. Cash in these Servicing Accounts will be transferred by the respective third-party servicer to the borrower or us under the terms of the applicable loan agreement upon occurrence of certain future events. We do not generate any revenue or incur any expenses as a result of these Servicing Accounts.

Loans Receivable

We originate and purchase commercial real estate debt and related instruments generally to be held as long-term investments at amortized cost.

Debt Securities Held-to-Maturity

We classify our debt securities as held-to-maturity, as we have the intent and ability to hold these securities until maturity. We include our debt securities in other assets on our consolidated balance sheets at amortized cost.

Current Expected Credit Losses Reserve

The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. The initial CECL reserve recorded on January 1, 2020 is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. While ASU 2016-13 does not require any particular method for determining the CECL reserve, it does specify the reserve should be based on relevant information about past events, including historical loss experience, current portfolio and market conditions, and reasonable and supportable forecasts for the duration of each respective loan. In addition, other than a few narrow exceptions, ASU 2016-13 requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors.    

We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM, method which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board Staff Q&A Topic 326, No. 1. The WARM method requires us to reference historic loan loss data across a comparable data set and apply such loss rate to each of our loans over their expected remaining term, taking into consideration expected economic conditions over the relevant timeframe. We apply the WARM method for the majority of our loan portfolio, which loans share similar risk characteristics. In certain instances, for loans with unique risk characteristics, we may instead use a probability-weighted model that considers the likelihood of default and expected loss given default for each such individual loan.    

Application of the WARM method to estimate a CECL reserve requires judgment, including (i) the appropriate historical loan loss reference data, (ii) the expected timing and amount of future loan fundings and repayments, and (iii) the current credit quality of our portfolio and our expectations of performance, and (iv) market conditions over the relevant time period. To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, which includes zero realized loan losses since the launch of our senior loan origination business in 2013, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through August 31, 2021. Within this database, we focused our

historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio.    

Our loans typically include commitments to fund incremental proceeds to our borrowers over the life of the loan, which future funding commitments are also subject to the CECL model. The CECL reserve related to future loan fundings is recorded as a component of Other Liabilities on our consolidated balance sheets. This CECL reserve is estimated using the same process outlined above for our outstanding loan balances, and changes in this component of the CECL reserve will similarly impact our consolidated net income. For both the funded and unfunded portions of our loans, we consider our internal risk rating of each loan as the primary credit quality indicator underlying our assessment.    

The CECL reserve is measured on a collective basis wherever similar risk characteristics exist within a pool of similar assets. We have identified the following pools and measure the reserve for credit losses using the following methods:    

• U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted-average remaining maturity of our loan pool, and an economic view.

• Non-U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted average remaining maturity of our loan pool, and an economic view.

• Unique Loans: a probability of default and loss given default model, assessed on an individual basis.

• Impaired Loans: impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected.

We adopted ASU 2016-13 using the modified-retrospective method for all financial assets measured at amortized cost. Prior to our adoption, we had no loan loss provisions on our consolidated balance sheets. We recorded a cumulative-effective adjustment to the opening retained earnings in our consolidated statement of equity as of January 1, 2020. The following table details the impact of this adoption ($ in thousands):    

	Impact of ASU 2016-13 Adoption
Assets:
Loans
U.S. Loans	$	8,955
Non-U.S. Loans		3,631
Unique Loans		1,356
CECL reserve on loans	$	13,942
CECL reserve on held-to-maturity debt securities		445
Liabilities:
CECL reserve on unfunded loan commitments		3,263
Total impact of ASU 2016-13 adoption on retained earnings	$	17,650

Contractual Term and Unfunded Loan Commitments    

Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve.    

Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables.    

Credit Quality Indicator

Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship. Based on a 5-point scale, our loans are rated “l” through “5,” from less risk to greater risk, relative to our loan portfolio in the aggregate, which ratings are defined as follows:    

1 -	Very Low Risk
2 -	Low Risk
3 -	Medium Risk
4 -	High Risk/Potential for Loss: A loan that has a risk of realizing a principal loss.
5 -	Impaired/Loss Likely: A loan that has a very high risk of realizing a principal loss or has otherwise incurred a principal loss.

Estimation of Economic Conditions

In addition to the WARM method computations and probability-weighted models described above, our CECL reserve is also adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while based on the information available to us as of the balance sheet date, are ultimately indeterminate and the actual economic condition impacting our portfolio could vary significantly from the estimates we made as of September 30, 2021.    

Derivative Financial Instruments

We classify all derivative financial instruments as either other assets or other liabilities on our consolidated balance sheets at fair value.

On the date we enter into a derivative contract, we designate each contract as (i) a hedge of a net investment in a foreign operation, or net investment hedge, (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability, or cash flow hedge, (iii) a hedge of a recognized asset or liability, or fair value hedge, or (iv) a derivative instrument not to be designated as a hedging derivative, or non-designated hedge. For all derivatives other than those designated as non-designated hedges, we formally document our hedge relationships and designation at the contract’s inception. This documentation includes the identification of the hedging instruments and the hedged items, its risk management objectives, strategy for undertaking the hedge transaction and our evaluation of the effectiveness of its hedged transaction.

On a quarterly basis, we also formally assess whether the derivative we designated in each hedging relationship is expected to be, and has been, highly effective in offsetting changes in the value or cash flows of the hedged items. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued and the changes in fair value of the instrument are included in net income prospectively. Effective April 1, 2020, our net investment hedges are assessed using a method based on changes in spot exchange rates. Gains and losses, representing hedge components excluded from the assessment of effectiveness, are recognized in interest income on our consolidated statements of operations over the contractual term of our net investment hedges on a systematic and rational basis, as documented at hedge inception in accordance with our accounting policy election. All other changes in the fair value of our derivative instruments that qualify as hedges are reported as a component of accumulated other comprehensive income (loss) on our consolidated financial statements. Deferred gains and losses are reclassified out of accumulated other comprehensive income (loss) and into net income in the same period or periods during which the hedged transaction affects earnings, and are presented in the same line item as the earnings effect of the hedged item. For cash flow hedges, this is typically when the periodic swap settlements are made, while for net investment hedges, this occurs when the hedged item is sold or substantially liquidated. To the extent a derivative does not qualify for hedge accounting and is deemed a non-designated hedge, the changes in its fair value are included in net income concurrently.    

Secured Debt and Asset-Specific Debt

We record investments financed with secured debt or asset-specific debt as separate assets and the related borrowings under any secured debt or asset-specific debt are recorded as separate liabilities on our consolidated balance sheets. Interest income earned on the investments and interest expense incurred on the secured debt or asset-specific debt are reported separately on our consolidated statements of operations.    

Senior Loan Participations

In certain instances, we finance our loans through the non-recourse syndication of a senior loan interest to a third-party. Depending on the particular structure of the syndication, the senior loan interest may remain on our GAAP balance sheet or, in other cases, the sale will be recognized and the senior loan interest will no longer be included in our consolidated financial statements. When these sales are not recognized under GAAP we reflect the transaction by recording a loan participations sold liability on our consolidated balance sheet, however this gross presentation does not impact stockholders’ equity or net income. When the sales are recognized, our balance sheet only includes our remaining subordinate loan and not the non-consolidated senior interest we sold.    

Term Loans

We record our term loans as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the term loans as additional non-cash interest expense.    

Convertible Notes

The “Debt with Conversion and Other Options” Topic of the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, requires the liability and equity components of convertible debt instruments that may be settled in cash upon conversion, including partial cash settlement, to be separately accounted for in a manner that reflects the issuer’s nonconvertible debt borrowing rate. The initial proceeds from the sale of convertible notes are allocated between a liability component and an equity component in a manner that reflects interest expense at the rate of similar nonconvertible debt that could have been issued at such time. The equity component represents the excess initial proceeds received over the fair value of the liability component of the notes as of the date of issuance. We measured the estimated fair value of the debt component of our convertible notes as of the respective issuance dates based on our nonconvertible debt borrowing rate. The equity component of each series of our convertible notes is reflected within additional paid-in capital on our consolidated balance sheet, and the resulting issue discount is amortized over the period during which such convertible notes are expected to be outstanding (through the maturity date) as additional non-cash interest expense. The additional non-cash interest expense attributable to such convertible notes will increase in subsequent periods through the maturity date as the notes accrete to their par value over the same period.

Deferred Financing Costs

The deferred financing costs that are included as a reduction in the net book value of the related liability on our consolidated balance sheets include issuance and other costs related to our debt obligations. These costs are amortized as interest expense using the effective interest method over the life of the related obligations.

Fair Value of Financial Instruments

The “Fair Value Measurements and Disclosures” Topic of the FASB, or ASC 820, defines fair value, establishes a framework for measuring fair value, and requires certain disclosures about fair value measurements under GAAP. Specifically, this guidance defines fair value based on exit price, or the price that would be received upon the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.

ASC 820 also establishes a fair value hierarchy that prioritizes and ranks the level of market price observability used in measuring financial instruments. Market price observability is affected by a number of factors, including the type of financial instrument, the characteristics specific to the financial instrument, and the state of the marketplace, including the existence and transparency of transactions between market participants. Financial instruments with readily available quoted prices in active markets generally will have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value.

Financial instruments measured and reported at fair value are classified and disclosed based on the observability of inputs used in the determination, as follows:

• Level 1: Generally includes only unadjusted quoted prices that are available in active markets for identical financial instruments as of the reporting date.

• Level 2: Pricing inputs include quoted prices in active markets for similar instruments, quoted prices in less active or inactive markets for identical or similar instruments where multiple price quotes can be obtained, and other observable inputs, such as interest rates, yield curves, credit risks, and default rates.

• Level 3: Pricing inputs are unobservable for the financial instruments and include situations where there is little, if any, market activity for the financial instrument. These inputs require significant judgment or estimation by management of third-parties when determining fair value and generally represent anything that does not meet the criteria of Levels 1 and 2.

The estimated value of each asset reported at fair value using Level 3 inputs is determined by an internal committee composed of members of senior management of our Manager, including our Chief Executive Officer, Chief Financial Officer, and other senior officers.

Certain of our other assets are reported at fair value, as of quarter-end, either (i) on a recurring basis or (ii) on a nonrecurring basis, as a result of impairment or other events. Our assets that are recorded at fair value are discussed further in Note 15. We generally value our assets recorded at fair value by either (i) discounting expected cash flows based on assumptions regarding the collection of principal and interest and estimated market rates, or (ii) obtaining assessments from third-party dealers. For collateral-dependent loans that are identified as impaired, we measure impairment by comparing our Manager’s estimation of the fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.    

During the three months ended June 30, 2020, we recorded an aggregate $69.7 million CECL reserve specifically related to two of our loans receivable, which was unchanged as of September 30, 2021. These two loans have an aggregate outstanding principal balance of $338.7 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021. These loans receivable are therefore measured at fair value on a nonrecurring basis using significant unobservable inputs, and are classified as Level 3 assets in the fair value hierarchy. The significant unobservable inputs used to estimate the fair value of these loans receivable include the exit capitalization rate assumption used to forecast the future sale price of the underlying real estate collateral, which ranged from 4.25% to 4.80%.    

We are also required by GAAP to disclose fair value information about financial instruments, which are not otherwise reported at fair value in our consolidated balance sheet, to the extent it is practicable to estimate a fair value for those instruments. These disclosure requirements exclude certain financial instruments and all non-financial instruments.

The following methods and assumptions are used to estimate the fair value of each class of financial instruments, for which it is practicable to estimate that value:

• Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates fair value.

• Loans receivable, net: The fair values of these loans were estimated by our Manager based on a discounted cash flow methodology, taking into consideration various factors including capitalization rates, discount rates, leasing, credit worthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.

• Debt securities held-to-maturity: The fair value of these instruments was estimated by utilizing third-party pricing service providers assuming the securities are not sold prior to maturity. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Derivative financial instruments: The fair value of our foreign currency and interest rate contracts was estimated using advice from a third-party derivative specialist, based on contractual cash flows and observable inputs comprising foreign currency rates and credit spreads.

• Secured debt, net: The fair value of these instruments was estimated based on the rate at which a similar credit facility would currently be priced.

• Securitized debt obligations, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Asset-specific debt, net: The fair value of these instruments was estimated based on the rate at which a similar agreement would currently be priced.

• Term loans, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Convertible notes, net: Each series of the convertible notes is actively traded and their fair values were obtained using quoted market prices.

Income Taxes

Our financial results generally do not reflect provisions for current or deferred income taxes on our REIT taxable income. We believe that we operate in a manner that will continue to allow us to be taxed as a REIT and, as a result, we generally do not expect to pay substantial corporate level taxes other than those payable by our taxable REIT subsidiaries. If we were to fail to meet these requirements, we may be subject to federal, state, and local income tax on current and past income, and penalties. Refer to Note 13 for additional information.

Stock-Based Compensation

Our stock-based compensation consists of awards issued to our Manager and certain individuals employed by an affiliate of our Manager that vest over the life of the awards, as well as deferred stock units issued to certain members of our board of directors. Stock-based compensation expense is recognized for these awards in net income on a variable basis over the applicable vesting period of the awards, based on the value of our class A common stock. Refer to Note 14 for additional information.

Earnings per Share

Basic earnings per share, or Basic EPS, is computed in accordance with the two-class method and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units outstanding during the period. Our restricted class A common stock is considered a participating security, as defined by GAAP, and has been included in our Basic EPS under the two-class method as these restricted shares have the same rights as our other shares of class A common stock, including participating in any gains or losses.

Diluted earnings per share, or Diluted EPS, is determined using the treasury stock method, and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units. Refer to Note 11 for additional discussion of earnings per share.

Foreign Currency

In the normal course of business, we enter into transactions not denominated in United States, or U.S., dollars. Foreign exchange gains and losses arising on such transactions are recorded as a gain or loss in our consolidated statements of operations. In addition, we consolidate entities that have a non-U.S. dollar functional currency. Non-U.S. dollar denominated assets and liabilities are translated to U.S. dollars at the exchange rate prevailing at the reporting date and income, expenses, gains, and losses are translated at the average exchange rate over the applicable period. Cumulative translation adjustments arising from the translation of non-U.S. dollar denominated subsidiaries are recorded in other comprehensive income (loss).

Underwriting Commissions and Offering Costs

Underwriting commissions and offering costs incurred in connection with common stock offerings are reflected as a reduction of additional paid-in capital. Costs incurred that are not directly associated with the completion of a common stock offering are expensed when incurred.

Recent Accounting Pronouncements

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,” or ASU 2020-04. ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications on debt instruments, leases, derivatives, and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or

collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848): Scope,” or ASU 2021-01. ASU 2021-01 clarifies that the practical expedients in ASU 2020-04 apply to derivatives impacted by changes in the interest rate used for margining, discounting, or contract price alignment. The guidance in ASU 2020-04 is optional and may be elected over time, through December 31, 2022, as reference rate reform activities occur. Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. In the first quarter of 2020, we have elected to apply the hedge accounting expedients, related to probability and the assessments of effectiveness, for future IBOR-indexed cash flows, to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with our past presentation. We continue to evaluate the impact of ASU 2020-04 and may apply other elections, as applicable, as the expected market transition from IBORs to alternative reference rates continues to develop.    

In August 2020, the FASB issued ASU 2020-06 “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” or ASU 2020-06. ASU 2020-06 simplifies the accounting for convertible debt by eliminating the beneficial conversion and cash conversion accounting models. ASU 2020-06 also updates the earnings per share calculation and requires entities to assume share settlement when the convertible debt can be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and is to be adopted through a cumulative-effect adjustment to the opening balance of retained earnings either at the date of adoption or in the first comparative period presented. Upon adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This will reduce the issue discount and result in less non-cash interest expense in our consolidated financial statements. Additionally, ASU 2020-06 will result in the reporting of a diluted earnings per share, if the effect is dilutive, in our consolidated financial statements, regardless of our settlement intent. We expect to adopt ASU 2020-06 using the modified retrospective method of transition, which we expect will result in an aggregate decrease to our additional paid-in capital of $2.4 million and an aggregate decrease to our accumulated deficit of $2.0 million, as of January 1, 2022.

Reference Rate Reform

LIBOR and certain other floating rate benchmark indices to which our floating rate loans and other loan agreements are tied, including, without limitation, the Euro Interbank Offered Rate, or EURIBOR, the Stockholm Interbank Offered Rate, or STIBOR, the Canadian Dollar Offered Rate, or CDOR, and the Australian Bank Bill Swap Reference Rate, or BBSY, or collectively, IBORs, are the subject of recent national, international and regulatory guidance and proposals for reform. On March 5, 2021, the Financial Conduct Authority of the U.K., or FCA, which has statutory powers to require panel banks to contribute to LIBOR where necessary, announced it would cease publication of certain IBORs, including one-week and two-month USD LIBOR and all tenors of GBP LIBOR, immediately after December 31, 2021 and cease the publication of the remaining tenors of USD LIBOR immediately after June 30, 2023. Additionally, the Federal Reserve Board, Federal Deposit Insurance Corporation, Office of the Comptroller of Currency, and other interagency regulatory bodies have advised U.S. banks to stop entering into new USD LIBOR based contracts by December 31, 2021.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate, or SOFR, a new index calculated using short-term repurchase agreements backed by Treasury securities, as its preferred alternative rate for USD LIBOR. In the U.K., the Bank of England’s working group on Sterling risk free rates set March 31, 2021 as the target date under which GBP LIBOR may no longer be used as the reference rate for new loan products with maturities after December 31, 2021. Market participants have started to transition to the Sterling Overnight Index Average, or SONIA, in line with guidance from the U.K. regulators. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%. Additionally, as of September 30, 2021, daily compounded SONIA is utilized as the floating benchmark rate on five of our loans and two of our credit facilities. As of September 30, 2021, SONIA was 0.05% and three-month GBP LIBOR was 0.08%.

At this time, it is not possible to predict how markets will respond to SOFR, SONIA, or other alternative reference rates as the transition away from USD LIBOR and GBP LIBOR proceeds. Despite the LIBOR transition in other markets, benchmark rate methodologies in Europe, Canada, and Australia have been reformed and rates such as EURIBOR, STIBOR, CDOR, and BBSY may persist as International Organization of Securities Commissions, or IOSCO, compliant reference rates moving forward. However, multi-rate environments may persist in these markets as regulators and working groups have suggested market participants adopt alternative reference rates.

Refer to “Part I. Item 1A. Risk Factors—Risks Related to Our Lending and Investment Activities—The expected discontinuation of currently used financial reference rates and use of alternative replacement reference rates may adversely affect net interest income related to our loans and investments or otherwise adversely affect our results of operations, cash flows and the market value of our investments.” of our Annual Report on Form 10-K filed with the SEC on February 10, 2021.

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Loans Receivable, Net

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Loans Receivable, Net

3. LOANS RECEIVABLE, NET

The following table details overall statistics for our loans receivable portfolio ($ in thousands):

	September 30, 2021			December 31, 2020
Number of loans		156			120
Principal balance	$	20,522,560		$	16,652,824
Net book value	$	20,276,078		$	16,399,166
Unfunded loan commitments(1)	$	4,220,214		$	3,160,084
Weighted-average spread(2)		+ 3.18	%		+ 3.18	%
Weighted-average all-in yield(2)		+ 3.51	%		+ 3.53	%
Weighted-average maximum maturity (years)(3)		3.3			3.1

(1)	Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date.
(2)	The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable to each loan. As of September 30, 2021, 99.6% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.4% of our loans earned a fixed rate of interest. We reflect our fixed rate loans as a spread over the relevant floating benchmark rates, as of September 30, 2021 and December 31, 2020, for purposes of the weighted-averages. As of December 31, 2020, 99.4% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.
(3)	Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. As of September 30, 2021, 44% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 56% were open to repayment by the borrower without penalty. As of December 31, 2020, 31% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 69% were open to repayment by the borrower without penalty.

The following table details the index rate floors for our loans receivable portfolio as of September 30, 2021 ($ in thousands):

	Loans Receivable Principal Balance
Index rate floors	USD		Non-USD(1)		Total
Fixed rate	$	—	$	78,511	$	78,511
0.00% or no floor(2)		3,265,850		4,912,695		8,178,545
0.01% to 0.24% floor		3,910,133		112,026		4,022,159
0.25% to 0.99% floor		1,363,685		271,616		1,635,301
1.00% or more floor		6,062,597		545,447		6,608,044
Total(3)(4)	$	14,602,265	$	5,920,295	$	20,522,560

(1)	Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, and Canadian Dollar Currencies.
(2)	Includes $338.7 million of loans accounted for under the cost-recovery method.
(3)	Excludes investment exposure to $79.2 million subordinate position we own in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(4)	As of September 30, 2021, the weighted-average index rate floor of our loan portfolio was 0.55%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.89%.

Activity relating to our loans receivable portfolio was as follows ($ in thousands):    

	Principal Balance			Deferred Fees / Other Items(1)			Net Book Value
Loans receivable, as of December 31, 2020	$	16,652,824		$	(80,109	)	$	16,572,715
Loan fundings		7,449,491			—			7,449,491
Loan repayments and sales		(3,351,118	)		—			(3,351,118	)
Unrealized (loss) gain on foreign currency translation		(228,637	)		1,157			(227,480	)
Deferred fees and other items		—			(79,971	)		(79,971	)
Amortization of fees and other items		—			42,829			42,829
Loans receivable, as of September 30, 2021	$	20,522,560		$	(116,094	)	$	20,406,466
CECL reserve								(130,388	)
Loans receivable, net, as of September 30, 2021							$	20,276,078

(1)   Other items primarily consist of purchase and sale discounts or premiums, exit fees, and deferred origination expenses. 

The tables below detail the property type and geographic distribution of the properties securing the loans in our portfolio ($ in thousands):

September 30, 2021
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		65	$	10,239,432		$	10,940,778		50%
Multifamily		56		4,465,938			4,494,065		21
Hospitality		18		2,777,827			2,879,888		13
Industrial		5		894,865			901,211		4
Retail		6		770,045			773,491		4
Life Sciences		2		407,595			413,209		2
Other		4		850,764			1,117,525		6
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		26	$	4,463,202		$	4,491,804		21%
West		32		3,548,756			4,126,256		19
Southeast		33		3,425,624			3,618,296		17
Southwest		24		1,786,470			1,796,817		8
Midwest		10		1,201,663			1,205,877		6
Northwest		2		94,670			94,963		—
Subtotal		127		14,520,385			15,334,013		71
International
United Kingdom		14		1,754,872			1,999,180		9
Spain		4		1,448,355			1,455,967		7
Ireland		1		1,233,286			1,237,547		6
Sweden		1		564,277			569,529		3
Australia		2		175,786			176,144		1
Canada		2		66,881			66,864		—
Other Europe		5		642,624			680,923		3
Subtotal		29		5,886,081			6,186,154		29
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests as of September 30, 2021.
(2)	Excludes investment exposure to the $493.3 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

December 31, 2020
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		58	$	9,834,509		$	10,303,895		58%
Hospitality		14		2,295,255			2,369,454		14
Multifamily		31		1,788,149			1,862,667		11
Industrial		6		673,912			675,344		4
Retail		4		538,702			551,243		3
Life Sciences		1		146,290			147,763		1
Other		6		1,295,898			1,544,255		9
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		24	$	4,050,732		$	4,069,712		23%
West		27		2,942,126			3,413,089		20
Southeast		25		2,624,701			2,707,080		16
Midwest		8		973,702			976,693		6
Southwest		9		597,100			598,813		3
Northwest		1		15,404			15,413		—
Subtotal		94		11,203,765			11,780,800		68
International
United Kingdom		13		1,816,901			2,066,390		12
Ireland		1		1,309,443			1,317,846		8
Spain		2		1,247,162			1,252,080		7
Australia		2		259,126			259,788		1
Canada		3		82,185			82,262		—
Other Europe		5		654,133			695,455		4
Subtotal		26		5,368,950			5,673,821		32
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $801.8 million of such non-consolidated senior interests as of December 31, 2020.
(2)	Excludes investment exposure to the $735.5 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Loan Risk Ratings

As further described in Note 2, our Manager evaluates our loan portfolio on a quarterly basis. In conjunction with our quarterly loan portfolio review, our Manager assesses the risk factors of each loan, and assigns a risk rating based on several factors. Factors considered in the assessment include, but are not limited to, risk of loss, current LTV, debt yield, collateral performance, structure, exit plan, and sponsorship. Loans are rated “1” (less risk) through “5” (greater risk), which ratings are defined in Note 2. 

The following table allocates the principal balance and net book value of our loans receivable based on our internal risk ratings ($ in thousands):    

	September 30, 2021						December 31, 2020
Risk Rating	Number of Loans	Net Book Value			Total Loan Exposure(1)(2)		Number of Loans	Net Book Value			Total Loan Exposure(1)(2)
1	8	$	931,330		$	931,831	8	$	777,163		$	778,283
2	27		4,800,884			4,836,029	17		2,513,848			2,528,835
3	110		12,060,623			13,129,870	79		9,911,914			10,763,496
4	9		2,276,394			2,283,701	14		3,032,593			3,045,309
5	2		337,235			338,736	2		337,197			338,698
Total loans receivable	156	$	20,406,466		$	21,520,167	120	$	16,572,715		$	17,454,621
CECL reserve			(130,388	)					(173,549	)
Loans receivable, net		$	20,276,078					$	16,399,166

(1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million and $801.8 million of such non-consolidated senior interests as of September 30, 2021 and December 31, 2020, respectively.

(2) Excludes investment exposure to the 2018 Single Asset Securitization of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

The weighted-average risk rating of our total loan exposure was 2.8 and 3.0 as of September 30, 2021 and December 31, 2020, respectively. The decrease in risk rating reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio, which resulted in several risk rating upgrades in our portfolio during the nine months ended September 30, 2021.

Current Expected Credit Loss Reserve

The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our loans receivable CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Loans Receivable, Net
CECL reserve as of December 31, 2020	$	42,995		$	27,734		$	33,159		$	69,661	$	173,549
Increase (decrease) in CECL reserve		1,539			(3,134	)		146			—		(1,449	)
CECL reserve as of March 31, 2021	$	44,534		$	24,600		$	33,305		$	69,661	$	172,100
Decrease in CECL reserve		(26,861	)		(15,771	)		(523	)		—		(43,155	)
CECL reserve as of June 30, 2021	$	17,673		$	8,829		$	32,782		$	69,661	$	128,945
Increase (decrease) in CECL reserve		3,253			(283	)		(1,527	)		—		1,443
CECL reserve as of September 30, 2021	$	20,926		$	8,546		$	31,255		$	69,661	$	130,388
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		8,955			3,631			1,356			—		13,942
Increase in CECL reserve		55,906			18,194			24,652			—		98,752
CECL reserve as of March 31, 2020	$	64,861		$	21,825		$	26,008		$	—	$	112,694
(Decrease) increase in CECL reserve		(3,457	)		(2,080	)		1,232			69,661		65,356
CECL reserve as of June 30, 2020	$	61,404		$	19,745		$	27,240		$	69,661	$	178,050
(Decrease) increase in CECL reserve		(10,762	)		7,035			2,703			—		(1,024	)
CECL reserve as of September 30, 2020	$	50,642		$	26,780		$	29,943		$	69,661	$	177,026

Our initial CECL reserve of $13.9 million against our loans receivable portfolio, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $1.4 million and a decrease of $43.2 million, respectively, in the CECL reserve against our loans receivable portfolio, bringing our total reserve to $130.4 million as of September 30, 2021. The increase in the CECL reserve during the three months

ended September 30, 2021 is primarily due to an increase in the size of our loans receivable portfolio during the three months ended September 30, 2021. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. During the three and nine months ended September 30, 2020, we recorded a decrease of $1.0 million and an increase of $163.1 million, respectively, in the CECL reserve against our loans receivable portfolio, bringing our total reserve to $177.0 million as of September 30, 2020. See Note 2 for further discussion of COVID-19.    

During 2020 and 2021, we entered into loan modifications related to a multifamily asset in New York City, which are classified as troubled debt restructurings under GAAP. These modifications included, among other changes, a reduction in the loan’s contractual interest payments and an extension of the loan’s maturity date. During the three months ended June 30, 2020, we recorded a $14.8 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $52.4 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

During 2020, we entered into a loan modification related to a hospitality asset in New York City, which is classified as a troubled debt restructuring under GAAP. This modification included, among other changes, a reduction in the loan’s contractual interest payments and an extension of the loan’s maturity date. During the three months ended June 30, 2020, we recorded a $54.9 million CECL reserve on this loan, which was unchanged as of September 30, 2021. This loan has an outstanding principal balance of $286.3 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021.

As of July 1, 2020, the income accrual was suspended on the two loans detailed above, which had an aggregate outstanding principal balance of $338.7 million, as of September 30, 2021. No income was recorded on these loans subsequent to July 1, 2020. 

Our primary credit quality indicator is our risk ratings, which are further discussed above. The following tables present the net book value of our loan portfolio as of September 30, 2021 and December 31, 2020, respectively, by year of origination, investment pool, and risk rating ($ in thousands):    

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of September 30, 2021
Risk Rating	2021		2020		2019		2018		2017		Prior		Total
U.S. loans
1	$	—	$	43,745	$	696,764	$	—	$	66,188	$	—	$	806,697
2		694,114		—		586,976		887,935		391,740		81,256		2,642,021
3		4,979,207		830,399		1,844,466		1,522,591		602,976		269,127		10,048,766
4		—		—		96,494		540,766		63,365		51,923		752,548
5		—		—		—		—		—		—		—
Total U.S. loans	$	5,673,321	$	874,144	$	3,224,700	$	2,951,292	$	1,124,269	$	402,306	$	14,250,032
Non-U.S. loans
1	$	—	$	—	$	34,877	$	—	$	89,756	$	—	$	124,633
2		564,277		100,126		1,383,692		—		—		110,768		2,158,863
3		455,534		—		907,728		393,573		—		—		1,756,835
4		—		—		346,071		—		—		—		346,071
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	1,019,811	$	100,126	$	2,672,368	$	393,573	$	89,756	$	110,768	$	4,386,402
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		196,073		—		58,949		255,022
4		—		—		321,156		856,619		—		—		1,177,775
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	—	$	321,156	$	1,052,692	$	—	$	58,949	$	1,432,797
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		—		284,808		—		52,427		337,235
Total impaired loans	$	—	$	—	$	—	$	284,808	$	—	$	52,427	$	337,235
Total loans receivable
1	$	—	$	43,745	$	731,641	$	—	$	155,944	$	—	$	931,330
2		1,258,391		100,126		1,970,668		887,935		391,740		192,024		4,800,884
3		5,434,741		830,399		2,752,194		2,112,237		602,976		328,076		12,060,623
4		—		—		763,721		1,397,385		63,365		51,923		2,276,394
5		—		—		—		284,808		—		52,427		337,235
Total loans receivable	$	6,693,132	$	974,270	$	6,218,224	$	4,682,365	$	1,214,025	$	624,450	$	20,406,466
CECL reserve														(130,388	)
Loans receivable, net													$	20,276,078

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $77.6 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization. 

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of December 31, 2020
Risk Rating	2020		2019		2018		2017		2016		Prior		Total
U.S. loans
1	$	—	$	231,796	$	253,674	$	43,906	$	17,009	$	—	$	546,385
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		781,595		2,391,297		1,672,897		1,134,288		227,466		220,644		6,428,187
4		65,978		170,541		1,055,142		63,293		105,380		—		1,460,334
5		—		—		—		—		—		—		—
Total U.S. loans	$	847,573	$	3,075,651	$	4,153,881	$	1,998,625	$	429,703	$	443,321	$	10,948,754
Non-U.S. loans
1	$	—	$	—	$	136,021	$	94,757	$	—	$	—	$	230,778
2		—		—		—		—		—		—		—
3		105,300		2,526,225		479,512		—		113,653		—		3,224,690
4		—		256,494		—		—		—		—		256,494
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	105,300	$	2,782,719	$	615,533	$	94,757	$	113,653	$	—	$	3,711,962
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		198,433		—		—		60,604		259,037
4		—		325,097		990,668		—		—		—		1,315,765
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	325,097	$	1,189,101	$	—	$	—	$	60,604	$	1,574,802
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		284,809		—		—		52,388		337,197
Total impaired loans	$	—	$	—	$	284,809	$	—	$	—	$	52,388	$	337,197
Total loans receivable
1	$	—	$	231,796	$	389,695	$	138,663	$	17,009	$	—	$	777,163
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		886,895		4,917,522		2,350,842		1,134,288		341,119		281,248		9,911,914
4		65,978		752,132		2,045,810		63,293		105,380		—		3,032,593
5		—		—		284,809		—		—		52,388		337,197
Total loans receivable	$	952,873	$	6,183,467	$	6,243,324	$	2,093,382	$	543,356	$	556,313	$	16,572,715
CECL reserve														(173,549	)
Loans receivable, net													$	16,399,166

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $75.7 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Multifamily Joint Venture

As discussed in Note 2, we entered into a Multifamily Joint Venture in April 2017. As of September 30, 2021 and December 31, 2020, our Multifamily Joint Venture held $817.9 million and $484.8 million of loans, respectively, which are included in the loan disclosures above. Refer to Note 2 for additional discussion of our Multifamily Joint Venture.

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Other Assets and Liabilities

9 Months Ended

Sep. 30, 2021

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Other Assets and Liabilities

4. OTHER ASSETS AND LIABILITIES

Other Assets

The following table details the components of our other assets ($ in thousands):

	September 30, 2021			December 31, 2020
Accrued interest receivable	$	78,689		$	66,757
Debt securities held-to-maturity(1)		77,916			77,445
CECL reserve		(280	)		(1,723	)
Debt securities held-to-maturity, net		77,636			75,722
Derivative assets		35,858			522
2021 FL4 CLO restricted cash(2)		25,000			—
Loan portfolio payments held by servicer(3)		766			73,224
Prepaid expenses		43			973
Collateral deposited under derivative agreements		—			51,050
Prepaid taxes		—			376
Other		622			1,195
Total	$	218,614		$	269,819

(1) Represents the subordinate position we own in the 2018 Single Asset Securitization, which held aggregate loan assets of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively, with a yield to full maturity of L+10.0% and a maximum maturity date of June 9, 2025, assuming all extension options are exercised by the borrower. Refer to Note 16 for additional discussion.

(2) Represents $25.0 million of restricted cash held by our 2021 FL4 collateralized loan obligation that can be used to acquire and finance additional assets for up to six months from the date of closing.

(3) Represents loan principal and interest payments held by our third-party loan servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle.

Current Expected Credit Loss Reserve

The CECL reserve required under GAAP reflects our current estimate of potential credit losses related to the loans and debt securities included in our consolidated balance sheets. Refer to Note 2 for further discussion of our CECL reserve. The following table presents the activity in our debt securities CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	Debt Securities Held-To-Maturity
CECL reserve as of December 31, 2020	$	1,723
Decrease in CECL reserve		(834	)
CECL reserve as of March 31, 2021	$	889
Decrease in CECL reserve		(767	)
CECL reserve as of June 30, 2021	$	122
Increase in CECL reserve		158
CECL reserve as of September 30, 2021	$	280
CECL reserve as of December 31, 2019	$	—
Initial CECL reserve on January 1, 2020		445
Increase in CECL reserve		4,677
CECL reserve as of March 31, 2020	$	5,122
Decrease in CECL reserve		(1,003	)
CECL reserve as of June 30, 2020	$	4,119
Decrease in CECL reserve		(2,086	)
CECL reserve as of September 30, 2020	$	2,033

Our initial CECL reserve of $445,000 against our debt securities held-to-maturity, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $158,000 and a decrease of $1.4 million, respectively, in the CECL reserve against our debt securities held-to-maturity, bringing our total reserve to $280,000 as of September 30, 2021. During the three and nine months ended September 30, 2020, we recorded a decrease of $2.1 million and an increase of $1.6 million, respectively, in the CECL reserve against our debt securities held-to-maturity, bringing our total reserve to $2.0 million as of September 30, 2020. See Note 2 for further discussion of COVID-19.

Other Liabilities

The following table details the components of our other liabilities ($ in thousands):

	September 30, 2021		December 31, 2020
Accrued dividends payable	$	97,350	$	91,004
Accrued interest payable		25,772		20,548
Accrued management and incentive fees payable		19,342		19,158
Accounts payable and other liabilities		11,080		2,671
Current expected credit loss reserve for unfunded loan commitments(1)		5,203		10,031
Derivative liabilities		355		58,915
Secured debt repayments pending servicer remittance(2)		322		—
Total	$	159,424	$	202,327

(1) Represents the CECL reserve related to our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve.

(2) Represents pending transfers from our third-party loan servicer that were remitted to our banking counterparties during the subsequent remittance cycle.

Current Expected Credit Loss Reserve for Unfunded Loan Commitments

As of September 30, 2021, we had aggregate unfunded loan commitments of $4.2 billion across 108 loans receivable. The expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve related to our unfunded loan commitments, and Note 18 for further discussion of our unfunded loan commitments. The following table presents the activity in the CECL reserve related to our unfunded loan commitments by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Unfunded Loan Commitments
CECL reserve as of December 31, 2020	$	6,953		$	2,994		$	84		$	—	$	10,031
Increase (decrease) in CECL reserve		216			778			(4	)		—		990
CECL reserve as of March 31, 2021	$	7,169		$	3,772		$	80		$	—	$	11,021
Decrease in CECL reserve		(4,315	)		(2,632	)		(37	)		—		(6,984	)
CECL reserve as of June 30, 2021	$	2,854		$	1,140		$	43		$	—	$	4,037
Increase (decrease) in CECL reserve		566			643			(43	)		—		1,166
CECL reserve as of September 30, 2021	$	3,420		$	1,783		$	—		$	—	$	5,203
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		2,801			453			9			—		3,263
Increase in CECL reserve		16,992			2,219			62			—		19,273
CECL reserve as of March 31, 2020	$	19,793		$	2,672		$	71		$	—	$	22,536
(Decrease) increase in CECL reserve		(6,957	)		(594	)		17			—		(7,534	)
CECL reserve as of June 30, 2020	$	12,836		$	2,078		$	88		$	—	$	15,002
(Decrease) increase in CECL reserve		(3,657	)		732			(20	)		—		(2,945	)
CECL reserve as of September 30, 2020	$	9,179		$	2,810		$	68		$	—	$	12,057

Our initial CECL reserve of $3.3 million against our unfunded loan commitments, recorded on January 1, 2020, is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. During the three and nine months ended September 30, 2021, we recorded an increase of $1.2 million and a decrease of $4.8 million, respectively, in the CECL reserve against our unfunded loan commitments, bringing our total reserve to $5.2 million as of September 30, 2021. The increase in the CECL reserve against our unfunded loan commitments during the three months ended September 30, 2021 is primarily due to an increase in the size of our loans receivable portfolio during the three months ended September 30, 2021. The decrease in the CECL reserve during the nine months ended September 30, 2021 reflects the ongoing market recovery from COVID-19 and the resulting improvement in the performance of the collateral assets underlying our portfolio. During the three and nine months ended September 30, 2020, we recorded a decrease of $2.9 million and an increase of $8.8 million, respectively, in the CECL reserve against our unfunded loan commitments, bringing our total reserve to $12.1 million as of September 30, 2020. See Note 2 for further discussion of COVID-19. 

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Secured Debt, Net

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Secured Debt, Net

5. SECURED DEBT, NET

Our secured debt includes our secured credit facilities and acquisition facility. During the three months ended September 30, 2021, we obtained approval for $2.8 billion of new borrowings against $3.5 billion of collateral assets from nine facility lenders. Additionally, during the three months ended September 30, 2021, we increased the size of one of our secured credit facilities by $150.0 million and extended the term on four of our secured credit facilities, which represent an aggregate credit capacity of $2.3 billion as of September 30, 2021. The following table details our secured debt ($ in thousands):

	Secured Debt Borrowings Outstanding
	September 30, 2021			December 31, 2020
Secured credit facilities	$	11,188,855		$	7,896,863
Acquisition facility		—			—
Total secured debt	$	11,188,855		$	7,896,863
Deferred financing costs(1)		(18,525	)		(16,327	)
Net book value of secured debt	$	11,170,330		$	7,880,536

(1) Costs incurred in connection with our secured debt are recorded on our consolidated balance sheet when incurred and recognized as a component of interest expense over the life of each related facility.

Secured Credit Facilities

Our secured credit facilities are bilateral agreements we use to finance diversified pools of senior loan collateral with sufficient flexibility to accommodate our investment and asset management strategy. The facilities are uniformly structured to provide currency, index, and term-matched financing without capital markets based mark-to-market provisions.

The following table details our secured credit facilities as of September 30, 2021 ($ in thousands):

September 30, 2021
				Wtd Avg.				Wtd Avg.	Recourse Limitation
Currency	Lenders(1)	Borrowings		Maturity(2)	Loan Count	Collateral(3)		Maturity(4)	Wtd. Avg.	Range
USD	12	$	7,022,125	5/5/2025	114	$	9,557,168	5/1/2025	29%	25% - 100%
EUR	6		2,369,013	7/26/2024	10		3,150,165	7/4/2024	48%	25% - 100%
GBP	6		1,163,414	10/22/2024	12		1,739,121	11/9/2024	26%	25% - 50%
Others(5)	4		634,303	6/17/2025	5		812,537	5/28/2025	27%	25% - 100%
Total	12	$	11,188,855	2/17/2025	141	$	15,258,991	2/10/2025	32%	25% - 100%

(1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders.

(2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans.

(3) Represents the principal balance of the collateral assets.

(4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date.

(5) Includes Swedish Krona, Australian Dollar, and Canadian Dollar currencies.

The availability of funding under our secured credit facilities is based on the amount of approved collateral, which collateral is proposed by us in our discretion and approved by the respective counterparty in its discretion, resulting in a mutually agreed collateral portfolio construction. Certain structural elements of our secured credit facilities, including the limitation on recourse to us and facility economics are influenced by the specific collateral portfolio construction of each facility, and therefore vary within and among the facilities.

The following tables detail the spread of our secured credit facilities as of September 30, 2021 and December 31, 2020 ($ in thousands):

	Nine Months Ended September 30, 2021		September 30, 2021
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg. All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg. All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	3,065,115	$	6,288,807		+ 1.54	%	$	8,176,251		+ 3.09	%		+ 1.55	%
+ 1.51% to + 1.75%		1,268,796		2,780,867		+ 1.88	%		3,851,597		+ 3.40	%		+ 1.52	%
+ 1.76% to + 2.00%		479,767		897,258		+ 2.08	%		1,253,906		+ 3.95	%		+ 1.87	%
+ 2.01% or more		465,872		1,221,923		+ 2.42	%		1,977,237		+ 4.42	%		+ 2.00	%
Total	$	5,279,550	$	11,188,855		+ 1.77	%	$	15,258,991		+ 3.41	%		+ 1.64	%

	Year Ended  December 31, 2020		December 31, 2020
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg.  All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg.  All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	376,085	$	4,192,280		+ 1.59	%	$	6,338,626		+ 3.09	%		+ 1.50	%
+ 1.51% to + 1.75%		172,447		1,945,692		+ 1.95	%		2,975,581		+ 3.43	%		+ 1.48	%
+ 1.76% to + 2.00%		215,056		926,666		+ 2.06	%		1,212,546		+ 3.83	%		+ 1.77	%
+ 2.01% or more		134,928		832,225		+ 2.49	%		1,514,154		+ 4.34	%		+ 1.85	%
Total	$	898,516	$	7,896,863		+ 1.83	%	$	12,040,907		+ 3.40	%		+ 1.57	%

(1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable.

(2) Represents borrowings outstanding as of September 30, 2021 and December 31, 2020, respectively, for new financings during the nine months ended September 30, 2021 and year ended December 31, 2020, respectively, based on the date collateral was initially pledged to each credit facility.

(3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings.

(4) Represents the weighted-average all-in cost as of September 30, 2021 and December 31, 2020, respectively, and is not necessarily indicative of the spread applicable to recent or future borrowings.

(5) Represents the principal balance of the collateral assets.

(6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees.

(7) Represents the difference between the weighted-average all-in yield and weighted-average all-in cost.

Our secured credit facilities generally permit us to increase or decrease the amount advanced against the pledged collateral in our discretion within certain maximum/minimum amount and frequency limitations. As of September 30, 2021, there was an aggregate $306.2 million available to be drawn at our discretion under our credit facilities.

Acquisition Facility

We have a $250.0 million full recourse secured credit facility that is designed to finance eligible first mortgage originations for up to nine months as a bridge to term financing without obtaining discretionary lender approval. The cost of borrowing under the facility is variable, dependent on the type of loan collateral, and its maturity date is April 4, 2023.

During the nine months ended September 30, 2021, we had no borrowings under the acquisition facility and we recorded interest expense of $925,000, including $262,000 of amortization of deferred fees and expenses. As of September 30, 2021, we had one asset pledged to our acquisition facility and there was an aggregate $146.3 million available to be drawn at our discretion.

During the nine months ended December 31, 2020, we had no borrowings under the acquisition facility and we recorded interest expense of $1.1 million, including $411,000 of amortization of deferred fees and expenses.

Financial Covenants

We are subject to the following financial covenants related to our secured debt: (i) our ratio of earnings before interest, taxes, depreciation, and amortization, or EBITDA, to fixed charges, as defined in the agreements, shall be not less than 1.4 to 1.0; (ii) our tangible net worth, as defined in the agreements, shall not be less than $3.2 billion as of each measurement date plus 75% of the net cash proceeds of future equity issuances subsequent to September 30, 2021; (iii) cash liquidity shall not be less than the greater of (x) $10.0 million or (y) no more than 5% of our recourse indebtedness; and (iv) our indebtedness shall not exceed 83.33% of our total assets. As of September 30, 2021 and December 31, 2020, we were in compliance with these covenants.

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Securitized Debt Obligations, Net

9 Months Ended

Sep. 30, 2021

Text Block [Abstract]

Securitized Debt Obligations, Net

6. SECURITIZED DEBT OBLIGATIONS, NET

We have financed certain pools of our loans through collateralized loan obligations, which include the 2021 FL4 CLO, 2020 FL3 CLO, 2020 FL2 CLO, and 2017 FL1 CLO or collectively, the CLOs. We have also financed one of our loans through a single asset securitization vehicle, or the 2017 Single Asset Securitization. The CLOs and the 2017 Single Asset Securitization are consolidated in our financial statements and have issued securitized debt obligations that are non-recourse to us. Refer to Note 16 for further discussion of our CLOs and 2017 Single Asset Securitization.

The following tables detail our securitized debt obligations ($ in thousands):

	September 30, 2021
Securitized Debt Obligations	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2021 FL4 Collateralized Loan Obligation
Collateral assets	35	$	1,000,000	$	1,000,000		+ 3.41	%		July 2024
Financing provided	1		803,750		796,864		+ 1.65	%		May 2038
2020 FL3 Collateralized Loan Obligation
Collateral assets	21		1,000,000		1,000,000		+ 3.02	%		April 2024
Financing provided(2)	1		808,750		803,378		+ 2.10	%		November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets	24		1,500,000		1,500,000		+ 3.10	%		March 2024
Financing provided(2)	1		1,243,125		1,235,807		+ 1.45	%		February 2038
Total
Collateral assets	80	$	3,500,000	$	3,500,000		+ 3.17	%
Financing provided(4)	3	$	2,855,625	$	2,836,049		+ 1.69	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and SOFR, as applicable to each securitized debt obligation. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	During the three and nine months ended September 30, 2021, we recorded $10.7 million and $35.2 million, respectively, of interest expense related to our securitized debt obligations.

	December 31, 2020
Securitized Debt Obligations	Count		Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2020 FL3 Collateralized Loan Obligation
Collateral assets		25	$	1,000,000	$	1,000,000		+ 3.09	%	February 2024
Financing provided		1		808,750		800,993		+ 2.08	%	November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets		31		1,500,000		1,500,000		+ 3.17	%	January 2024
Financing provided		1		1,243,125		1,233,464		+ 1.44	%	February 2038
2017 FL1 Collateralized Loan Obligation
Collateral assets		15		666,334		666,334		+ 3.39	%	January 2023
Financing provided		1		483,834		483,113		+ 1.83	%	June 2035
2017 Single Asset Securitization
Collateral assets(4)		1		619,194		618,766		+ 3.57	%	June 2023
Financing provided		1		404,929		404,929		+ 1.63	%	June 2033
Total
Collateral assets		72	$	3,785,528	$	3,785,100		+ 3.25	%
Financing provided(5)		4	$	2,940,638	$	2,922,499		+ 1.70	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	The collateral assets for the 2017 Single Asset Securitization include the total loan amount, of which we securitized $500.0 million.
(5)	During the three and nine months ended September 30, 2020, we recorded $9.1 million and $31.8 million, respectively, of interest expense related to our securitized debt obligations.

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Asset-Specific Debt, Net

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Asset-Specific Debt, Net

7. ASSET-SPECIFIC DEBT, NET

The following tables detail our asset-specific debt ($ in thousands):

	September 30, 2021
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	3	$	436,562	$	424,650		+ 4.34	%		Dec. 2024
Financing provided	3	$	328,068	$	320,895		+ 3.13	%		Dec. 2024

	December 31, 2020
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	4	$	512,794	$	499,085		+ 4.65	%		Oct. 2023
Financing provided	4	$	399,699	$	391,269		+ 3.48	%		Oct. 2023

(1)	These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs.
(2)	The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific debt is term-matched to the corresponding collateral loans.

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Term Loans, Net

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Term Loans, Net

8. TERM LOANS, NET

During the nine months ended September 30, 2021, we (i) increased our borrowings under our B-2 senior term loan facility by $100.0 million and decreased the interest rate by 2.50% to USD LIBOR plus 2.75%, and (ii) we increased our borrowings under our B-1 senior term loan facility by $200.0 million.

As of September 30, 2021, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands):

Term Loans	Face Value		Interest Rate(1)			All-in Cost(1)(2)			Maturity
B-1 Term Loan	$	932,256		+ 2.25	%		+ 2.53	%		April 23, 2026
B-2 Term Loan	$	420,450		+ 2.75	%		+ 3.42	%		April 23, 2026

(1)	The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%.
(2)	Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.

The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the aggregate principal balance due in quarterly installments. The issue discount and transaction expenses on the B-1 Term Loan were $3.1 million and $12.6 million, respectively, which will be amortized into interest expense over the life of the B-1 Term Loan. The issue discount and transaction expenses of the B-2 Term Loan were $9.6 million and $5.4 million, respectively, which will be amortized into interest expense over the life of the B-2 Term Loan.

The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	1,352,706		$	1,062,766
Unamortized discount		(9,748	)		(9,807	)
Deferred financing costs		(13,321	)		(11,255	)
Net book value	$	1,329,637		$	1,041,704

The guarantee under our Term Loans contains the financial covenant that our indebtedness shall not exceed 83.33% of our total assets. As of September 30, 2021 and December 31, 2020, we were in compliance with this covenant. Refer to Note 2 for additional discussion of our accounting policies for the Term Loans.

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Convertible Notes, Net

9 Months Ended

Sep. 30, 2021

Text Block [Abstract]

Convertible Notes, Net

9. CONVERTIBLE NOTES, NET

As of September 30, 2021, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands):

Convertible Notes Issuance	Face Value		Interest Rate			All-in Cost(1)			Conversion Rate(2)		Maturity
May 2017	$	402,500		4.38	%		4.85	%		28.0324		May 5, 2022
March 2018	$	220,000		4.75	%		5.33	%		27.6052		March 15, 2023

(1)

Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method.

(2)

Represents the shares of class A common stock per $1,000 principal amount of Convertible Notes, which is equivalent to a conversion price of $35.67 and $36.23 per share of class A common stock, respectively, for the May 2017 and March 2018 convertible notes. The cumulative dividend threshold as defined in the respective May 2017 and March 2018 convertible notes supplemental indentures have not been exceeded as of September 30, 2021.

The Convertible Notes are convertible at the holders’ option into shares of our class A common stock, only under specific circumstances, prior to the close of business on January 31, 2022 and December 14, 2022 for the May 2017 and March 2018 convertible notes, respectively, at the applicable conversion rate in effect on the conversion date.​​​​​​​ Thereafter, the Convertible Notes are convertible at the option of the holder at any time until the second scheduled trading day immediately preceding the maturity date. We may not redeem the Convertible Notes prior to maturity. The last reported sale price of our class A common stock of $30.32 on September 30, 2021 was less than the per share conversion price of the May 2017 and March 2018 convertible notes. We have the intent and ability to settle each series of the Convertible Notes in cash and, as a result, the potential conversion of the Convertible Notes did not have any impact on our diluted earnings per share.

Upon our issuance of the May 2017 convertible notes, we recorded a $979,000 discount based on the implied value of the conversion option and an assumed effective interest rate of 4.57%, as well as $8.4 million of issue discount and issuance costs. Including the amortization of the discount and issuance costs, our total cost of the May 2017 convertible notes issuance is 4.91% per annum.

Upon our issuance of the March 2018 convertible notes, we recorded a $1.5 million discount based on the implied value of the conversion option and an assumed effective interest rate of 5.25%, as well as $5.2 million of issue discount and issuance costs. Including the amortization of the discount and issuance costs, our total cost of the March 2018 convertible notes issuance is 5.49% per annum.

The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	622,500		$	622,500
Unamortized discount		(3,301	)		(5,715	)
Deferred financing costs		(214	)		(396	)
Net book value	$	618,985		$	616,389

The following table details our interest expense related to the Convertible Notes ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Cash coupon	$	7,015	$	7,015	$	21,045	$	21,045
Discount and issuance cost amortization		873		831		2,595		2,470
Total interest expense	$	7,888	$	7,846	$	23,640	$	23,515

Accrued interest payable for the Convertible Notes was $7.8 million and $6.0 million as of September 30, 2021 and December 31, 2020, respectively. Refer to Note 2 for additional discussion of our accounting policies for the Convertible Notes.

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Derivative Financial Instruments

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

10. DERIVATIVE FINANCIAL INSTRUMENTS

The sole objective of our use of derivative financial instruments is to minimize the risks and/or costs associated with our investments and/or financing transactions. These derivatives may or may not qualify as net investment, cash flow, or fair value hedges under the hedge accounting requirements of ASC 815 – “Derivatives and Hedging.” Derivatives not designated as hedges are not speculative and are used to manage our exposure to interest rate movements and other identified risks. Refer to Note 2 for additional discussion of the accounting for designated and non-designated hedges.

The use of derivative financial instruments involves certain risks, including the risk that the counterparties to these contractual arrangements do not perform as agreed. To mitigate this risk, we only enter into derivative financial instruments with counterparties that have appropriate credit ratings and are major financial institutions with which we and our affiliates may also have other financial relationships.

Cash Flow Hedges of Interest Rate Risk

Certain of our transactions expose us to interest rate risks, which include a fixed versus floating rate mismatch between our assets and liabilities. We use derivative financial instruments, which includes interest rate caps, and may also include interest rate swaps, options, floors, and other interest rate derivative contracts, to hedge interest rate risk.

The following tables detail our outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (notional amount in thousands):

September 30, 2021
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	1	C$	21,020		1.0	%		CDOR		0.2

December 31, 2020
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	2	C$	38,293		1.0	%		CDOR		0.8

Amounts reported in accumulated other comprehensive income (loss) related to derivatives will be reclassified to interest expense as interest payments are made on our floating rate debt. During the twelve months following September 30, 2021, we estimate that an additional $3,000 will be reclassified from accumulated other comprehensive income (loss) as an increase to interest expense.

Net Investment Hedges of Foreign Currency Risk

Certain of our international investments expose us to fluctuations in foreign interest rates and currency exchange rates. These fluctuations may impact the value of our cash receipts and payments in terms of our functional currency, the U.S. dollar. We use foreign currency forward contracts to protect the value or fix the amount of certain investments or cash flows in terms of the U.S. dollar.

Designated Hedges of Foreign Currency Risk

The following table details our outstanding foreign exchange derivatives that were designated as net investment hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Foreign Currency Derivatives	Number of Instruments	Notional Amount		Foreign Currency Derivatives	Number of Instruments		Notional Amount
Buy USD / Sell SEK Forward	1	kr	999,500	Buy USD / Sell EUR Forward		8	€	754,722
Buy USD / Sell EUR Forward	6	€	817,642	Buy USD / Sell GBP Forward		4	€	372,487
Buy USD / Sell GBP Forward	1	£	542,551	Buy USD / Sell AUD Forward		1	A$	92,800
Buy USD / Sell AUD Forward	1	A$	89,500	Buy USD / Sell CAD Forward		1	C$	26,200
Buy USD / Sell CAD Forward	1	C$	21,000

Non-designated Hedges of Foreign Currency Risk

The following table details our outstanding foreign exchange derivatives that were non-designated hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Non-designated Hedges	Number of Instruments	Notional Amount		Non-designated Hedges	Number of Instruments		Notional Amount
Buy GBP / Sell EUR Forward	1	€	8,410	Buy EUR / Sell GBP Forward		2	£	146,207
Buy EUR / Sell USD Forward	1	€	13,900	Buy USD / Sell EUR Forward		1	€	8,410
Buy USD / Sell EUR Forward	1	€	13,900

Financial Statement Impact of Hedges of Foreign Currency Risk

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

				Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts
				Three Months			Three Months			Nine Months			Nine Months
Foreign Exchange Contracts	Location of Income			Ended			Ended			Ended			Ended
in Hedging Relationships	(Expense) Recognized			September 30, 2021			September 30, 2020			September 30, 2021			September 30, 2020
Designated Hedges		Interest Income	(1)	$	1,542		$	1,794		$	5,294		$	2,303
Non-Designated Hedges		Interest Income	(1)		34			(227	)		(340	)		(222	)
Non-Designated Hedges		Interest Expense	(2)		(8	)		669			(7,139	)		(846	)
Total				$	1,568		$	2,236		$	(2,185	)	$	1,235

(1)	Represents the forward points earned on our foreign currency forward contracts, which reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the rate exposure to USD LIBOR, resulting in additional interest income earned in U.S. dollar terms.
(2)	Represents the spot rate movement in our non-designated hedges, which are marked-to-market and recognized in interest expense.

Valuation and Other Comprehensive Income

The following table summarizes the fair value of our derivative financial instruments ($ in thousands):

	Fair Value of Derivatives in an Asset Position(1) as of				Fair Value of Derivatives in a Liability Position(2) as of
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
Derivatives designated as hedging instruments:
Foreign exchange contracts	$	35,460	$	521	$	—	$	55,758
Interest rate derivatives		—		1		—		—
Total	$	35,460	$	522	$	—	$	55,758
Derivatives not designated as hedging instruments:
Foreign exchange contracts	$	398	$	—	$	355	$	3,157
Interest rate derivatives		—		—		—		—
Total	$	398	$	—	$	355	$	3,157
Total Derivatives	$	35,858	$	522	$	355	$	58,915

(1) Included in other assets in our consolidated balance sheets.

(2) Included in other liabilities in our consolidated balance sheets.

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

	Amount of Gain Recognized in OCI on Derivatives				Location of Gain (Loss)			Amount of Loss Reclassified from Accumulated OCI into Income
	Three Months		Nine Months		Reclassified from Accumulated			Three Months			Nine Months
Derivatives in	Ended		Ended					Ended			Ended
Hedging Relationships	September 30, 2021		September 30, 2021		OCI into Income			September 30, 2021			September 30, 2021
Net Investment Hedges
Foreign exchange contracts(1)	$	46,078	$	65,052		Interest Expense		$	—		$	—
Cash Flow Hedges
Interest rate derivatives		—		—		Interest Expense	(2)		(5	)		(7	)
Total	$	46,078	$	65,052				$	(5	)	$	(7	)

(1)	During the three and nine months ended September 30, 2021, we received net cash settlements of $18.3 million and paid net cash settlements of $31.0 million, respectively, on our foreign currency forward contracts. Those amounts are included as a component of accumulated other comprehensive income (loss) on our consolidated balance sheets.
(2)	During the three months ended September 30, 2021, we recorded total interest and related expenses of $82.7 million, which included interest expense of $5,000 related to our cash flow hedges. During the nine months ended September 30, 2021, we recorded total interest and related expenses of $243.4 million, which included interest expense of $7,000.

Credit-Risk Related Contingent Features

We have entered into agreements with certain of our derivative counterparties that contain provisions where if we were to default on any of our indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender, we may also be declared in default on our derivative obligations. In addition, certain of our agreements with our derivative counterparties require that we post collateral to secure net liability positions. As of September 30, 2021, we were in a net asset position with both of our derivative counterparties and did not have any collateral posted under these derivative contracts. As of December 31, 2020, we were in a net liability position with each such derivative counterparty and posted collateral of $51.1 million under these derivative contracts.    

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Equity

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Equity

11. EQUITY

Stock and Stock Equivalents

Authorized Capital

As of September 30, 2021, we had the authority to issue up to 500,000,000 shares of stock, consisting of 400,000,000 shares of class A common stock and 100,000,000 shares of preferred stock. Subject to applicable NYSE listing requirements, our board of directors is authorized to cause us to issue additional shares of authorized stock without stockholder approval. In addition, to the extent not issued, currently authorized stock may be reclassified between class A common stock and preferred stock. We did not have any shares of preferred stock issued and outstanding as of September 30, 2021 and December 31, 2020.

Class A Common Stock and Deferred Stock Units

Holders of shares of our class A common stock are entitled to vote on all matters submitted to a vote of stockholders and are entitled to receive such dividends as may be authorized by our board of directors and declared by us, in all cases subject to the rights of the holders of shares of outstanding preferred stock, if any.

The following table details our issuances of class A common stock during the nine months ended September 30, 2021 ($ in thousands, except share and per share data):

	Class A Common Stock Offerings
	September 2021
Shares issued		10,000,000
Gross / net issue price per share(1)		$31.45 / $31.24
Net proceeds(2)		$311,955

(1)	Represents the gross price per share issued, as well as the net proceeds per share after underwriting or sales discounts and commissions.
(2)	Net proceeds represents proceeds received from the underwriters less applicable transaction costs.

We also issue restricted class A common stock under our stock-based incentive plans. Refer to Note 14 for additional discussion of these long-term incentive plans. In addition to our class A common stock, we also issue deferred stock units to certain members of our board of directors in lieu of cash compensation for services rendered. These deferred stock units are non-voting, but carry the right to receive dividends in the form of additional deferred stock units in an amount equivalent to the cash dividends paid to holders of shares of class A common stock.

The following table details the movement in our outstanding shares of class A common stock, including restricted class A common stock and deferred stock units:

	Nine Months Ended September 30,
Common Stock Outstanding(1)	2021		2020
Beginning balance		147,086,722		135,263,728
Issuance of class A common stock(2)		10,001,429		10,842,295
Issuance of restricted class A common stock, net(3)		234,229		351,333
Issuance of deferred stock units		50,009		33,790
Ending balance		157,372,389		146,491,146

(1)	Includes 356,700 and 293,856 deferred stock units held by members of our board of directors as of September 30, 2021 and 2020, respectively.
(2)	Includes 1,429 and 1,599 shares issued under our dividend reinvestment program during the nine months ended September 30, 2021 and 2020, respectively.
(3)	The amounts are net of 29,580 and 249 shares of restricted class A common stock forfeited under our stock-based incentive plans during the nine months ended September 30, 2021 and 2020, respectively. See Note 14 for further discussion of our stock-based incentive plans.

Dividend Reinvestment and Direct Stock Purchase Plan

On March 25, 2014, we adopted a dividend reinvestment and direct stock purchase plan, under which we registered and reserved for issuance, in the aggregate, 10,000,000 shares of class A common stock. Under the dividend reinvestment component of this plan, our class A common stockholders can designate all or a portion of their cash dividends to be reinvested in additional shares of class A common stock. The direct stock purchase component allows stockholders and new investors, subject to our approval, to purchase shares of class A common stock directly from us. During the three and nine months ended September 30, 2021, we issued 480 shares and 1,429 shares, respectively, of class A common stock under the dividend reinvestment component of the plan compared to 628 shares and 1,599 shares, respectively, for the same periods in 2020. As of September 30, 2021, a total of 9,990,545 shares of class A common stock remained available for issuance under the dividend reinvestment and direct stock purchase plan.

At the Market Stock Offering Program

On November 14, 2018, we entered into six equity distribution agreements, or ATM Agreements, pursuant to which we may sell, from time to time, up to an aggregate sales price of $500.0 million of our class A common stock. On July 26, 2019, we amended our existing ATM Agreements and entered into one additional ATM Agreement. Sales of class A common stock made pursuant to our ATM Agreements may be made in negotiated transactions or transactions that are deemed to be “at the market” offerings as defined in Rule 415 under the Securities Act of 1933, as amended. Actual sales depend on a variety of factors including market conditions, the trading price of our class A common stock, our capital needs, and our determination of the appropriate sources of funding to meet such needs. During the nine months ended September 30, 2021 and 2020, we did not sell any shares of our class A common stock under ATM Agreements. As of September 30, 2021, sales of our class A common stock with an aggregate sales price of $363.8 million remained available for issuance under our ATM Agreements.

Dividends

We generally intend to distribute substantially all of our taxable income, which does not necessarily equal net income as calculated in accordance with GAAP, to our stockholders each year to comply with the REIT provisions of the Internal Revenue Code of 1986, as amended, or the Internal Revenue Code. Our dividend policy remains subject to revision at the discretion of our board of directors. All distributions will be made at the discretion of our board of directors and will depend upon our taxable income, our financial condition, our maintenance of REIT status, applicable law, and other factors as our board of directors deems relevant.

On September 15, 2021, we declared a dividend of $0.62 per share, or $97.3 million in aggregate, that was paid on October 15, 2021, to stockholders of record as of September 30, 2021. The following table details our dividend activity ($ in thousands, except per share data):    

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Dividends declared per share of common stock	$	0.62	$	0.62	$	1.86	$	1.86
Class A common stock dividends declared	$	97,350	$	90,642	$	279,659	$	265,205
Deferred stock unit dividends declared		202		174		591		502
Total dividends declared	$	97,552	$	90,816	$	280,250	$	265,707

Earnings Per Share

We calculate our basic and diluted earnings per share using the two-class method for all periods presented as the unvested shares of our restricted class A common stock qualify as participating securities, as defined by GAAP. These restricted shares have the same rights as our other shares of class A common stock, including participating in any dividends, and therefore have been included in our basic and diluted net income (loss) per share calculation. Our Convertible Notes are excluded from dilutive earnings per share as we have the intent and ability to settle these instruments in cash.

The following table sets forth the calculation of basic and diluted net income (loss) per share of class A common stock based on the weighted-average of both restricted and unrestricted class A common stock outstanding ($ in thousands, except per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income(1)	$	83,757	$	89,860	$	295,254	$	54,054
Weighted-average shares outstanding, basic and diluted		149,214,819		146,484,651		147,971,737		140,157,620
Per share amount, basic and diluted	$	0.56	$	0.61	$	2.00	$	0.39

(1)   Represents net income attributable to Blackstone Mortgage Trust.

Other Balance Sheet Items

Accumulated Other Comprehensive Income

As of September 30, 2021, total accumulated other comprehensive income was $9.9 million, primarily including $69.9 million of net realized and unrealized gains related to changes in the fair value of derivative instruments, offset by $60.0 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies. As of December 31, 2020, total accumulated other comprehensive income was $11.2 million, primarily representing (i) $6.4 million of cumulative unrealized currency translation adjustments on assets and liabilities denominated in foreign currencies, and (ii) $4.8 million of net realized and unrealized gains related to changes in the fair value of derivative instruments.

Non-Controlling Interests

The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are not owned by us. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on their pro rata ownership of our Multifamily Joint Venture. As of September 30, 2021, our Multifamily Joint Venture’s total equity was $226.7 million, of which $192.7 million was owned by us, and $34.0 million was allocated to non-controlling interests. As of December 31, 2020, our Multifamily Joint Venture’s total equity was $121.1 million, of which $102.9 million was owned by us, and $18.2 million was allocated to non-controlling interests.

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Other Expenses

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Other Expenses

12. OTHER EXPENSES

Our other expenses consist of the management and incentive fees we pay to our Manager and our general and administrative expenses.

Management and Incentive Fees

Pursuant to a management agreement between our Manager and us, or our Management Agreement, our Manager earns a base management fee in an amount equal to 1.50% per annum multiplied by our outstanding equity balance, as defined in the Management Agreement. In addition, our Manager is entitled to an incentive fee in an amount equal to the product of (i) 20% and (ii) the excess of (a) our Core Earnings (as defined in our Management Agreement) for the previous 12-month period over (b) an amount equal to 7.00% per annum multiplied by our outstanding Equity, provided that our Core Earnings over the prior three-year period is greater than zero. Core Earnings, as defined in our Management Agreement, is generally equal to our GAAP net income (loss), including realized gains and losses not otherwise recognized in current period GAAP net income (loss), and excluding (i) non-cash equity compensation expense, (ii) depreciation and amortization, (iii) unrealized gains (losses), (iv) certain non-cash items, and (v) incentive management fees.

During the three and nine months ended September 30, 2021, we incurred $15.8 million and $46.9 million, respectively, of management fees payable to our Manager, compared to $15.6 million and $44.8 million during the same period in 2020. In addition, during the three and nine months ended September 30, 2021, we incurred $3.6 million and $13.2 million, respectively, of incentive fees payable to our Manager, compared to $3.4 million and $13.9 million during the same period in 2020. During the nine months ended September 30, 2021, we paid $59.9 million of aggregate management and incentive fees in cash. During the nine months ended September 30, 2020, we issued 840,696 shares of class A common stock to our Manager in satisfaction of our aggregate $19.3 million of management and incentive fees accrued in the first quarter of 2020, and paid the remaining $40.7 million in cash.

As of September 30, 2021 and December 31, 2020 we had accrued management and incentive fees payable to our Manager of $19.3 million and $19.2 million, respectively, which are included in Other Liabilities on our consolidated balance sheets.

General and Administrative Expenses

General and administrative expenses consisted of the following ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Professional services(1)	$	1,969	$	1,715	$	5,831	$	5,130
Operating and other costs(1)		792		878		2,093		3,212
Subtotal		2,761		2,593		7,924		8,342
Non-cash compensation expenses
Restricted class A common stock earned		7,907		8,524		23,762		25,603
Director stock-based compensation		173		125		422		375
Subtotal		8,080		8,649		24,184		25,978
Total general and administrative expenses	$	10,841	$	11,242	$	32,108	$	34,320

(1)   During the three and nine months ended September 30, 2021, we recognized an aggregate $110,000 and $543,000, respectively, of expenses related to our Multifamily Joint Venture. During the three and nine months ended September 30, 2020, we recognized an aggregate $293,000 and $869,000, respectively, of expenses related to our Multifamily Joint Venture.

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

13. INCOME TAXES

We have elected to be taxed as a REIT under the Internal Revenue Code for U.S. federal income tax purposes. We generally must distribute annually at least 90% of our net taxable income, subject to certain adjustments and excluding any net capital gain, in order for U.S. federal income tax not to apply to our earnings that we distribute. To the extent that we satisfy this distribution requirement, but distribute less than 100% of our net taxable income, we will be subject to U.S. federal income tax on our undistributed taxable income. In addition, we will be subject to a 4% nondeductible excise tax if the actual amount that we pay out to our stockholders in a calendar year is less than a minimum amount specified under U.S. federal tax laws.

Our qualification as a REIT also depends on our ability to meet various other requirements imposed by the Internal Revenue Code, which relate to organizational structure, diversity of stock ownership, and certain restrictions with regard to the nature of our assets and the sources of our income. Even if we qualify as a REIT, we may be subject to certain U.S. federal income and excise taxes and state and local taxes on our income and assets. If we fail to maintain our qualification as a REIT for any taxable year, we may be subject to material penalties as well as federal, state, and local income tax on our taxable income at regular corporate rates and we would not be able to qualify as a REIT for the subsequent four full taxable years. As of September 30, 2021 and December 31, 2020, we were in compliance with all REIT requirements.

Securitization transactions could result in the creation of taxable mortgage pools for federal income tax purposes. As a REIT, so long as we own 100% of the equity interests in a taxable mortgage pool, we generally would not be adversely affected by the characterization of the securitization as a taxable mortgage pool. Certain categories of stockholders, however, such as foreign stockholders eligible for treaty or other benefits, stockholders with net operating losses, and certain tax-exempt stockholders that are subject to unrelated business income tax, or UBTI, could be subject to increased taxes on a portion of their dividend income from us that is attributable to the taxable mortgage pool. We have not made UBTI distributions to our common stockholders and do not intend to make such UBTI distributions in the future.

During the three and nine months ended September 30, 2021, we recorded a current income tax provision of $70,000 and $346,000, respectively, primarily related to activities of our taxable REIT subsidiaries and various state and local taxes. During the three and nine months ended September 30, 2020, we recorded a current income tax provision of $20,000 and $192,000, respectively. We did not have any deferred tax assets or liabilities as of September 30, 2021 or December 31, 2020.

We have net operating losses, or NOLs, generated by our predecessor business that may be carried forward and utilized in current or future periods. As a result of our issuance of 25,875,000 shares of class A common stock in May 2013, the availability of our NOLs is generally limited to $2.0 million per annum by change of control provisions promulgated by the Internal Revenue Service with respect to the ownership of Blackstone Mortgage Trust. As of December 31, 2020, we had estimated NOLs of $159.0 million that will expire in 2029, unless they are utilized by us prior to expiration.

As of September 30, 2021, tax years 2017 through 2020 remain subject to examination by taxing authorities.

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Stock-Based Incentive Plans

9 Months Ended

Sep. 30, 2021

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Incentive Plans

14. STOCK-BASED INCENTIVE PLANS

We are externally managed by our Manager and do not currently have any employees. However, as of September 30, 2021, our Manager, certain individuals employed by an affiliate of our Manager, and certain members of our board of directors were compensated, in part, through our issuance of stock-based instruments.

We had stock-based incentive awards outstanding under nine benefit plans as of September 30, 2021. Seven of such benefit plans have expired and no new awards may be issued under them. Under our two current benefit plans, a maximum of 5,000,000 shares of our class A common stock may be issued to our Manager, our directors and officers, and certain employees of affiliates of our Manager. As of September 30, 2021, there were 1,978,860 shares available under our current benefit plans.

The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share:

	Restricted Class A Common Stock			Weighted-Average Grant Date Fair Value Per Share
Balance as of December 31, 2020		1,627,890		$	33.14
Granted		263,809			26.16
Vested		(718,799	)		33.08
Forfeited		(29,580	)		31.52
Balance as of September 30, 2021		1,143,320		$	31.60

These shares generally vest in installments over a three-year period, pursuant to the terms of the respective award agreements and the terms of our current benefit plans. The 1,143,320 shares of restricted class A common stock outstanding as of September 30, 2021 will vest as follows: 239,145 shares will vest in 2021; 626,395 shares will vest in 2022; and 277,780 shares will vest in 2023. As of September 30, 2021, total unrecognized compensation cost relating to unvested share-based compensation arrangements was $33.6 million based on the grant date fair value of shares granted. This cost is expected to be recognized over a weighted-average period of 1.0 years from September 30, 2021.

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Fair Values

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Fair Values

15. FAIR VALUES

Assets and Liabilities Measured at Fair Value

The following table summarizes our assets and liabilities measured at fair value on a recurring basis ($ in thousands):

	September 30, 2021								December 31, 2020
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Derivatives	$	—	$	35,858	$	—	$	35,858	$	—	$	522	$	—	$	522
Liabilities
Derivatives	$	—	$	355	$	—	$	355	$	—	$	58,915	$	—	$	58,915

Refer to Note 2 for further discussion regarding fair value measurement.

Fair Value of Financial Instruments

As discussed in Note 2, GAAP requires disclosure of fair value information about financial instruments, whether or not recognized at fair value in the statement of financial position, for which it is practicable to estimate that value.

The following table details the book value, face amount, and fair value of the financial instruments described in Note 2 ($ in thousands):

	September 30, 2021						December 31, 2020
	Book		Face		Fair		Book		Face		Fair
	Value		Amount		Value		Value		Amount		Value
Financial assets
Cash and cash equivalents	$	211,180	$	211,180	$	211,180	$	289,970	$	289,970	$	289,970
Loans receivable, net		20,276,078		20,522,560		20,358,824		16,399,166		16,652,824		16,447,192
Debt securities held-to-maturity(1)		77,636		79,200		78,633		75,722		79,200		70,127
Financial liabilities
Secured debt, net		11,170,330		11,188,855		11,188,855		7,880,536		7,896,863		7,896,863
Securitized debt obligations, net		2,836,049		2,855,625		2,855,589		2,922,499		2,940,638		2,923,489
Asset-specific debt, net		320,895		328,068		328,068		391,269		399,699		399,699
Term loans, net		1,329,637		1,352,706		1,343,771		1,041,704		1,062,766		1,053,060
Convertible notes, net		618,985		622,500		633,845		616,389		622,500		621,568

(1)   Included in other assets on our consolidated balance sheets.

Estimates of fair value for cash and cash equivalents and convertible notes are measured using observable, quoted market prices, or Level 1 inputs. Estimates of fair value for debt securities held to maturity, securitized debt obligations, and the term loans are measured using observable, quoted market prices, in inactive markets, or Level 2 inputs. All other fair value significant estimates are measured using unobservable inputs, or Level 3 inputs. See Note 2 for further discussion regarding fair value measurement of certain of our assets and liabilities.

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Variable Interest Entities

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entities

16. VARIABLE INTEREST ENTITIES

Consolidated Variable Interest Entities

We have financed a portion of our loans through the CLOs and the 2017 Single Asset Securitization, all of which are VIEs. During the nine months ended September 30, 2021, the 2017 Single Asset Securitization was liquidated upon full repayment of its collateral assets and all senior securities outstanding. Previously, the 2017 Single Asset Securitization was consolidated by us. We are the primary beneficiary of, and therefore consolidate, the CLOs on our balance sheet as we (i) control the relevant interests of the CLOs that give us power to direct the activities that most significantly affect the CLOs, and (ii) have the right to receive benefits and obligation to absorb losses of the CLOs through the subordinate interests we own.

The following table details the assets and liabilities of our consolidated CLOs and 2017 Single Asset Securitization VIEs ($ in thousands):    

	September 30, 2021			December 31, 2020
Assets:
Loans receivable	$	3,475,000		$	3,520,130
Current expected credit loss reserve		(4,044	)		(13,454	)
Loans receivable, net		3,470,956			3,506,676
Other assets		32,406			81,274
Total assets	$	3,503,362		$	3,587,950
Liabilities:
Securitized debt obligations, net	$	2,836,049		$	2,922,499
Other liabilities		1,631			2,104
Total liabilities	$	2,837,680		$	2,924,603

Assets held by these VIEs are restricted and can be used only to settle obligations of the VIEs, including the subordinate interests owned by us. The liabilities of these VIEs are non-recourse to us and can only be satisfied from the assets of the VIEs. The consolidation of these VIEs results in an increase in our gross assets, liabilities, interest income and interest expense, however it does not affect our stockholders’ equity or net income (loss).

Non-Consolidated Variable Interest Entities

In the third quarter of 2018, we contributed a $517.5 million loan to the $1.0 billion 2018 Single Asset Securitization, which is a VIE, and invested in the related $99.0 million subordinate position. We are not the primary beneficiary of the VIE because we do not have the power to direct the activities that most significantly affect the VIE’s economic performance and, therefore, do not consolidate the 2018 Single Asset Securitization on our balance sheet. We have classified the subordinate position we own as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. Our maximum exposure to loss from the 2018 Single Asset Securitization is limited to our book value of $77.6 million as of September 30, 2021.

We are not obligated to provide, have not provided, and do not intend to provide financial support to these consolidated and non-consolidated VIEs.

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Transactions With Related Parties

9 Months Ended

Sep. 30, 2021

Related Party Transactions [Abstract]

Transactions With Related Parties

17. TRANSACTIONS WITH RELATED PARTIES

We are managed by our Manager pursuant to the Management Agreement, the current term of which expires on December 19, 2021, and will be automatically renewed for a one-year term upon such date and each anniversary thereafter unless earlier terminated.

As of September 30, 2021 and December 31, 2020, our consolidated balance sheets included $19.3 million and $19.2 million of accrued management and incentive fees payable to our Manager, respectively. During the three and nine months ended September 30, 2021, we paid aggregate management and incentive fees of $21.5 million and $59.9 million, respectively, to our Manager, compared to $20.5 million and $59.9 million during the same periods of 2020. During the nine months ended September 30, 2020, we issued 840,696 shares of class A common stock to our Manager in satisfaction of our aggregate $19.3 million of management and incentive fees accrued in the first quarter of 2020. The per share price with respect to such issuance was calculated based on the volume-weighted average price on the NYSE of our class A common stock over the five trading days following our April 29, 2020 first quarter 2020 earnings conference call. In addition, during the three and nine months ended September 30, 2021, we reimbursed our Manager for expenses incurred on our behalf of $141,000 and $325,000, respectively, compared to $416,000 and $839,000 during the same periods of 2020.

As of September 30, 2021, our Manager held 578,914 shares of unvested restricted class A common stock, which had an aggregate grant date fair value of $18.5 million, and vest in installments over three years from the date of issuance. During the three and nine months ended September 30, 2021, we recorded non-cash expenses related to shares held by our Manager of $4.1 million and $12.2 million, respectively, compared to $4.3 million and $12.8 million during the same period of 2020. Refer to Note 14 for further details on our restricted class A common stock.

An affiliate of our Manager is the special servicer of the CLOs. This affiliate did not earn any special servicing fees related to the CLOs during the nine months ended September 30, 2021 or 2020.

During the nine month periods ended September 30, 2021 and 2020, we originated three loans and two loans, respectively, whereby the respective borrowers engaged an affiliate of our Manager to act as title insurance agent in connection with these transactions. We did not incur any expenses or receive any revenues as a result of these transactions.

During the three and nine months ended September 30, 2021, we incurred $100,000 and $291,000, respectively, of expenses for various administrative, compliance, and capital market data services to third-party service providers that are affiliates of our Manager, compared to $98,000 and $369,000 during the same periods of 2020.

In the third quarter of 2021, we originated $246.6 million of a total $503.3 million senior loan to an unaffiliated third-party, which was part of a total financing that included a mezzanine loan originated by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under our loan, including voting rights, so long as any Blackstone-advised investment vehicle controls the mezzanine loan. The senior loan terms, with respect to the mezzanine lender, were negotiated by a third party without our involvement and our 49% interest in the senior loan was made on such market terms.

In the third quarter of 2021, we acquired an aggregate £186.0 million of a total £379.6 million senior loan to a borrower that is majority owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by the original lender prior to our acquisition of the loan without our involvement, and we acquired the loan on such market terms.

In the third quarter of 2021, we co-originated $243.6 million of an aggregate $974.5 million senior loan as part of a broadly marketed process. A Blackstone-advised investment vehicle co-originated an additional $243.6 million of the loan and unaffiliated third-parties co-originated the remaining $487.3 million of the loan. The loan proceeds were used by the borrower to repay an existing loan previously owned by us.

In the third and fourth quarter of 2019, we acquired an aggregate €250.0 million of a total €1.6 billion senior loan to a borrower that is partially owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by third parties without our involvement and our 16% interest in the senior loan was made on such market terms. In the second quarter of 2021, we acquired an additional €100.0 million interest in the senior loan from an unaffiliated lender, bringing our total interest to 22% of the aggregate senior loan.

In the second quarter of 2021, we acquired an aggregate €50.0 million of a total €491.0 million senior loan to a borrower that is majority owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as the Blackstone-advised investment vehicle controls the borrower. The senior loan terms were negotiated by the original lenders prior to our acquisition of the loan without our involvement and our 10% interest in the senior loan was made on such market terms.

In the second quarter of 2021 and 2020, certain Blackstone-advised investment vehicles acquired an aggregate $20.0 million participation, or 5%, of the initial aggregate B-2 Term Loan as a part of a broad syndication lead-arranged by JP Morgan. Blackstone Securities Partners L.P., an affiliate of our Manager, was engaged as a book-runner for the transaction and received aggregate fees of $350,000 in such capacity. Both of these transactions were on terms equivalent to those of unaffiliated parties.

In the first quarter of 2021 and second quarter and fourth quarter of 2019, certain Blackstone-advised investment vehicles acquired an aggregate $65.5 million participation, or 7%, of the initial aggregate B-1 Term Loan as a part of a broad syndication lead-arranged by JP Morgan. Blackstone Securities Partners L.P., an affiliate of our Manager, was engaged as a book-runner for the transactions and received aggregate fees of $950,000 in such capacity. Both of these transactions were on terms equivalent to those of unaffiliated parties.

In the first quarter of 2021, we acquired an SEK 5.0 billion interest in a total SEK 10.2 billion senior loan to a borrower that is wholly owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as we are an affiliate of the borrower. The senior loan terms were negotiated by a third party without our involvement and our 49% interest in the senior loan was made on such market terms.

In the first quarter of 2020, we acquired a $140.0 million interest in a total $421.5 million senior loan to a borrower that is partially owned by a Blackstone-advised investment vehicle. We will forgo all non-economic rights under the loan, including voting rights, so long as we are an affiliate of the borrower. The senior loan terms were negotiated by third parties without our involvement and our 33% interest in the senior loan was made on such market terms.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

18. COMMITMENTS AND CONTINGENCIES

Impact of COVID-19

As further discussed in Note 2, the full extent of the impact of COVID-19 on the global economy generally, and our business in particular, is uncertain. As of September 30, 2021, no contingencies have been recorded on our consolidated balance sheet as a result of COVID-19, however as the global pandemic continues and if the economic implications worsen, it may have long-term impacts on our financial condition, results of operations, and cash flows. Refer to Note 2 for further discussion of COVID-19.

Unfunded Commitments Under Loans Receivable

As of September 30, 2021, we had aggregate unfunded loan commitments of $4.2 billion across 108 loans receivable, and $2.6 billion of committed or identified financings for those commitments, resulting in net unfunded commitments of $1.6 billion. The unfunded loan commitments comprise funding for capital expenditures and construction, leasing costs, and interest and carry costs, and their funding will vary depending on the progress of capital projects, leasing, and cash flows at the properties securing our loans. Therefore, the exact timing and amounts of such future loan fundings are uncertain and will depend on the current and future performance of the underlying collateral assets. We expect to fund our loan commitments over the remaining term of the related loans, which have a weighted-average future funding period of 3.2 years.

Principal Debt Repayments

Our contractual principal debt repayments as of September 30, 2021 were as follows ($ in thousands):

	Secured		Asset-Specific		Term		Convertible
Year	Debt(1)		Debt(1)		Loans(2)		Notes(3)		Total(4)
2021 (remainder of the year)	$	130,668	$	—	$	3,436	$	—	$	134,104
2022		228,030		—		13,738		402,500		644,268
2023		1,834,836		149,896		13,738		220,000		2,218,470
2024		3,937,001		—		13,738		—		3,950,739
2025		1,231,023		178,172		13,738		—		1,422,933
2026		3,725,205		—		1,294,318		—		5,019,523
Thereafter		102,092		—		—		—		102,092
Total obligation	$	11,188,855	$	328,068	$	1,352,706	$	622,500	$	13,492,129

(1) The allocation of repayments under our secured debt and asset-specific debt is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower.

(2) The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the principal balance due in quarterly installments. Refer to Note 8 for further details on our term loans.

(3) Reflects the outstanding principal balance of Convertible Notes, excluding any potential conversion premium. Refer to Note 9 for further details on our Convertible Notes.

(4) Total does not include $2.9 billion of consolidated securitized debt obligations, $997.6 million of non-consolidated senior interests, and $414.1 million of non-consolidated securitized debt obligations, as the satisfaction of these liabilities will not require cash outlays from us.

Board of Directors’ Compensation

As of September 30, 2021, of the nine members of our board of directors, our six independent directors are entitled to annual compensation of $210,000 each, of which $95,000 will be paid in the form of cash and $115,000 will be paid in the form of deferred stock units or, beginning in 2022, at their election, shares of restricted common stock. The other three board members, including our chairman and our chief executive officer, are not compensated by us for their service as directors. In addition, (i) the chairs of our audit, compensation, and corporate governance committees receive additional annual cash compensation of $20,000, $15,000, and $10,000, respectively and (ii) the members of our audit and investment risk management committees receive additional annual cash compensation of $10,000 and $7,500, respectively.

Litigation

From time to time, we may be involved in various claims and legal actions arising in the ordinary course of business. As of September 30, 2021, we were not involved in any material legal proceedings.

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Subsequent Events

9 Months Ended

Sep. 30, 2021

Subsequent Events [Abstract]

Subsequent Events

19. SUBSEQUENT EVENTS

On October 5, 2021, we issued $400.0 million aggregate principal amount of 3.75% senior secured notes due 2027, or Secured Notes. The Secured Notes were issued at par and have a maturity date of January 15, 2027. Blackstone Securities Partners L.P., an affiliate of our Manager, served as an initial purchaser for the Secured Notes offering and received compensation of $400,000 in connection therewith.

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying consolidated financial statements include, on a consolidated basis, our accounts, the accounts of our wholly-owned subsidiaries, majority-owned subsidiaries, and variable interest entities, or VIEs, of which we are the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

Certain reclassifications have been made in the presentation of the prior period statements of changes in equity, statements of cash flows, and loans receivable in Note 3 to conform to the current period presentation.

Principles of Consolidation

Principles of Consolidation

We consolidate all entities that we control through either majority ownership or voting rights. In addition, we consolidate all VIEs of which we are considered the primary beneficiary. VIEs are defined as entities in which equity investors (i) do not have the characteristics of a controlling financial interest and/or (ii) do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support from other parties. The entity that consolidates a VIE is known as its primary beneficiary and is generally the entity with (i) the power to direct the activities that most significantly affect the VIE’s economic performance and (ii) the right to receive benefits from the VIE or the obligation to absorb losses of the VIE that could be significant to the VIE.

In the third quarter of 2018, we contributed a loan to a single asset securitization vehicle, or the 2018 Single Asset Securitization, which is a VIE, and invested in the related subordinate position. We are not the primary beneficiary of the VIE because we do not have the power to direct the activities that most significantly affect the VIE’s economic performance and, therefore, do not consolidate the 2018 Single Asset Securitization on our balance sheet. We have classified the subordinate position we own as a held-to-maturity debt security that is included in other assets on our consolidated balance sheets. Refer to Note 16 for additional discussion of our VIEs.

In April 2017, we entered into a joint venture, or our Multifamily Joint Venture, with Walker & Dunlop Inc. to originate, hold, and finance multifamily bridge loans. Pursuant to the terms of the agreements governing the joint venture, Walker & Dunlop contributed 15% of the venture’s equity capital and we contributed 85%. We consolidate the Multifamily Joint Venture as we have a controlling financial interest. The non-controlling interests included on our consolidated balance sheets represent the equity interests in our Multifamily Joint Venture that are owned by Walker & Dunlop. A portion of our Multifamily Joint Venture’s consolidated equity and results of operations are allocated to these non-controlling interests based on Walker & Dunlop’s pro rata ownership of our Multifamily Joint Venture.

Use of Estimates

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. The novel coronavirus, or COVID-19 has significantly impacted the global economy since the beginning of 2020 and has, among other things, created disruption in global supply chains, increased rates of unemployment and adversely impacted many industries, including industries related to the collateral underlying certain of our loans. During the nine months ended September 30, 2021, the global economy has, with certain setbacks, begun reopening and wider distribution of vaccines and easing of travel and other restrictions appear to be encouraging greater economic activity. Nonetheless, the recovery could remain uneven, particularly given uncertainty with respect to the distribution and acceptance of the vaccines and their effectiveness with respect to new variants of the virus. As a result, we are still unable to predict when normal economic activity and business operations will fully resume. We believe the estimates and assumptions underlying our consolidated financial statements are reasonable and supportable based on the information available as of September 30, 2021, however uncertainty over the ultimate impact COVID-19 will have on the global economy generally, and our business in particular, makes any estimates and assumptions as of September 30, 2021 inherently less certain than they would be absent the current and potential impacts of COVID-19. Actual results may ultimately differ materially from those estimates.    

Revenue Recognition

Revenue Recognition

Interest income from our loans receivable portfolio and debt securities is recognized over the life of each investment using the effective interest method and is recorded on the accrual basis. Recognition of fees, premiums, and discounts associated with these investments is deferred and recorded over the term of the loan or debt security as an adjustment to yield. Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful. Interest received is then recorded as a reduction in the outstanding principal balance until accrual is resumed when the loan becomes contractually current and performance is demonstrated to be resumed. In addition, for loans we originate, the related origination expenses are deferred and recognized as a component of interest income, however expenses related to loans we acquire are included in general and administrative expenses as incurred.

Cash, Cash Equivalents, and Restricted Cash

Cash, Cash Equivalents, and Restricted Cash

Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less. We may have bank balances in excess of federally insured amounts; however, we deposit our cash and cash equivalents with high credit-quality institutions to minimize credit risk exposure. We have not experienced, and do not expect, any losses on our cash or cash equivalents.

Restricted cash represents cash collateral held within our 2021 FL4 collateralized loan obligation and is included in Other Assets on our consolidated balance sheets. See Note 6 for further discussion of the 2021 FL4 collateralized loan obligation.

The following table provides a reconciliation of cash, cash equivalents, and restricted cash on our consolidated balance sheets to the total amount shown on our consolidated statements of cash flows ($ in thousands):

	September 30, 2021		September 30, 2020
Cash and cash equivalents	$	211,180	$	427,028
2021 FL4 CLO restricted cash		25,000		—
Total cash, cash equivalents, and restricted cash shown in our consolidated statements of cash flows	$	236,180	$	427,028

Through our subsidiaries, we have oversight of certain servicing accounts held with third-party servicers, or Servicing Accounts, which relate to borrower escrows and other cash balances aggregating $426.6 million and $384.6 million as of September 30, 2021 and December 31, 2020, respectively. This cash is maintained in segregated bank accounts, and these amounts are not included in the assets and liabilities presented in our consolidated balance sheets. Cash in these Servicing Accounts will be transferred by the respective third-party servicer to the borrower or us under the terms of the applicable loan agreement upon occurrence of certain future events. We do not generate any revenue or incur any expenses as a result of these Servicing Accounts.

Loans Receivable

Loans Receivable

We originate and purchase commercial real estate debt and related instruments generally to be held as long-term investments at amortized cost.

Debt Securities Held-to-Maturity

Debt Securities Held-to-Maturity

We classify our debt securities as held-to-maturity, as we have the intent and ability to hold these securities until maturity. We include our debt securities in other assets on our consolidated balance sheets at amortized cost.

Current Expected Credit Losses Reserve

Current Expected Credit Losses Reserve

The current expected credit loss, or CECL, reserve required under Accounting Standard Update, or ASU, 2016-13 “Financial Instruments – Credit Losses – Measurement of Credit Losses on Financial Instruments (Topic 326),” or ASU 2016-13, reflects our current estimate of potential credit losses related to our loans and debt securities included in our consolidated balance sheets. The initial CECL reserve recorded on January 1, 2020 is reflected as a direct charge to retained earnings on our consolidated statements of changes in equity; however subsequent changes to the CECL reserve are recognized through net income on our consolidated statements of operations. While ASU 2016-13 does not require any particular method for determining the CECL reserve, it does specify the reserve should be based on relevant information about past events, including historical loss experience, current portfolio and market conditions, and reasonable and supportable forecasts for the duration of each respective loan. In addition, other than a few narrow exceptions, ASU 2016-13 requires that all financial instruments subject to the CECL model have some amount of loss reserve to reflect the GAAP principal underlying the CECL model that all loans, debt securities, and similar assets have some inherent risk of loss, regardless of credit quality, subordinate capital, or other mitigating factors.    

We estimate our CECL reserve primarily using the Weighted Average Remaining Maturity, or WARM, method which has been identified as an acceptable loss-rate method for estimating CECL reserves in the Financial Accounting Standards Board Staff Q&A Topic 326, No. 1. The WARM method requires us to reference historic loan loss data across a comparable data set and apply such loss rate to each of our loans over their expected remaining term, taking into consideration expected economic conditions over the relevant timeframe. We apply the WARM method for the majority of our loan portfolio, which loans share similar risk characteristics. In certain instances, for loans with unique risk characteristics, we may instead use a probability-weighted model that considers the likelihood of default and expected loss given default for each such individual loan.    

Application of the WARM method to estimate a CECL reserve requires judgment, including (i) the appropriate historical loan loss reference data, (ii) the expected timing and amount of future loan fundings and repayments, and (iii) the current credit quality of our portfolio and our expectations of performance, and (iv) market conditions over the relevant time period. To estimate the historic loan losses relevant to our portfolio, we have augmented our historical loan performance, which includes zero realized loan losses since the launch of our senior loan origination business in 2013, with market loan loss data licensed from Trepp LLC. This database includes commercial mortgage-backed securities, or CMBS, issued since January 1, 1999 through August 31, 2021. Within this database, we focused our

historical loss reference calculations on the most relevant subset of available CMBS data, which we determined based on loan metrics that are most comparable to our loan portfolio including asset type, geography, and origination loan-to-value, or LTV. We believe this CMBS data, which includes month-over-month loan and property performance, is the most relevant, available, and comparable dataset to our portfolio.    

Our loans typically include commitments to fund incremental proceeds to our borrowers over the life of the loan, which future funding commitments are also subject to the CECL model. The CECL reserve related to future loan fundings is recorded as a component of Other Liabilities on our consolidated balance sheets. This CECL reserve is estimated using the same process outlined above for our outstanding loan balances, and changes in this component of the CECL reserve will similarly impact our consolidated net income. For both the funded and unfunded portions of our loans, we consider our internal risk rating of each loan as the primary credit quality indicator underlying our assessment.    

The CECL reserve is measured on a collective basis wherever similar risk characteristics exist within a pool of similar assets. We have identified the following pools and measure the reserve for credit losses using the following methods:    

• U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted-average remaining maturity of our loan pool, and an economic view.

• Non-U.S. Loans: WARM method that incorporates a subset of historical loss data, expected weighted average remaining maturity of our loan pool, and an economic view.

• Unique Loans: a probability of default and loss given default model, assessed on an individual basis.

• Impaired Loans: impairment is indicated when it is deemed probable that we will not be able to collect all amounts due to us pursuant to the contractual terms of the loan. Determining that a loan is impaired requires significant judgment from management and is based on several factors including (i) the underlying collateral performance, (ii) discussions with the borrower, (iii) borrower events of default, and (iv) other facts that impact the borrower’s ability to pay the contractual amounts due under the terms of the loan. If a loan is determined to be impaired, we record the impairment as a component of our CECL reserve by applying the practical expedient for collateral dependent loans. The CECL reserve is assessed on an individual basis for these loans by comparing the estimated fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager. Actual losses, if any, could ultimately differ materially from these estimates. We only expect to realize the impairment losses if and when such amounts are deemed nonrecoverable upon a realization event. This is generally at the time a loan is repaid, or in the case of foreclosure, when the underlying asset is sold, but non-recoverability may also be concluded if, in our determination, it is nearly certain that all amounts due will not be collected.

We adopted ASU 2016-13 using the modified-retrospective method for all financial assets measured at amortized cost. Prior to our adoption, we had no loan loss provisions on our consolidated balance sheets. We recorded a cumulative-effective adjustment to the opening retained earnings in our consolidated statement of equity as of January 1, 2020. The following table details the impact of this adoption ($ in thousands):    

	Impact of ASU 2016-13 Adoption
Assets:
Loans
U.S. Loans	$	8,955
Non-U.S. Loans		3,631
Unique Loans		1,356
CECL reserve on loans	$	13,942
CECL reserve on held-to-maturity debt securities		445
Liabilities:
CECL reserve on unfunded loan commitments		3,263
Total impact of ASU 2016-13 adoption on retained earnings	$	17,650

Contractual Term and Unfunded Loan Commitments    

Expected credit losses are estimated over the contractual term of each loan, adjusted for expected prepayments. As part of our quarterly review of our loan portfolio, we assess the expected repayment date of each loan, which is used to determine the contractual term for purposes of computing our CECL reserve.    

Additionally, the expected credit losses over the contractual period of our loans are subject to the obligation to extend credit through our unfunded loan commitments. The CECL reserve for unfunded loan commitments is adjusted quarterly, as we consider the expected timing of future funding obligations over the estimated life of the loan. The considerations in estimating our CECL reserve for unfunded loan commitments are similar to those used for the related outstanding loan receivables.    

Credit Quality Indicator

Our risk rating is our primary credit quality indicator in assessing our current expected credit loss reserve. Our Manager performs a quarterly risk review of our portfolio of loans, and assigns each loan a risk rating based on a variety of factors, including, without limitation, LTV, debt yield, property type, geographic and local market dynamics, physical condition, cash flow volatility, leasing and tenant profile, loan structure and exit plan, and project sponsorship. Based on a 5-point scale, our loans are rated “l” through “5,” from less risk to greater risk, relative to our loan portfolio in the aggregate, which ratings are defined as follows:    

1 -	Very Low Risk
2 -	Low Risk
3 -	Medium Risk
4 -	High Risk/Potential for Loss: A loan that has a risk of realizing a principal loss.
5 -	Impaired/Loss Likely: A loan that has a very high risk of realizing a principal loss or has otherwise incurred a principal loss.

Estimation of Economic Conditions

In addition to the WARM method computations and probability-weighted models described above, our CECL reserve is also adjusted to reflect our estimation of the current and future economic conditions that impact the performance of the commercial real estate assets securing our loans. These estimations include unemployment rates, interest rates, and other macroeconomic factors impacting the likelihood and magnitude of potential credit losses for our loans during their anticipated term. In addition to the CMBS data we have licensed from Trepp LLC, we have also licensed certain macroeconomic financial forecasts to inform our view of the potential future impact that broader economic conditions may have on our loan portfolio’s performance. These estimations require significant judgments about future events that, while based on the information available to us as of the balance sheet date, are ultimately indeterminate and the actual economic condition impacting our portfolio could vary significantly from the estimates we made as of September 30, 2021.    

Derivative Financial Instruments

Derivative Financial Instruments

We classify all derivative financial instruments as either other assets or other liabilities on our consolidated balance sheets at fair value.

On the date we enter into a derivative contract, we designate each contract as (i) a hedge of a net investment in a foreign operation, or net investment hedge, (ii) a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability, or cash flow hedge, (iii) a hedge of a recognized asset or liability, or fair value hedge, or (iv) a derivative instrument not to be designated as a hedging derivative, or non-designated hedge. For all derivatives other than those designated as non-designated hedges, we formally document our hedge relationships and designation at the contract’s inception. This documentation includes the identification of the hedging instruments and the hedged items, its risk management objectives, strategy for undertaking the hedge transaction and our evaluation of the effectiveness of its hedged transaction.

On a quarterly basis, we also formally assess whether the derivative we designated in each hedging relationship is expected to be, and has been, highly effective in offsetting changes in the value or cash flows of the hedged items. If it is determined that a derivative is not highly effective at hedging the designated exposure, hedge accounting is discontinued and the changes in fair value of the instrument are included in net income prospectively. Effective April 1, 2020, our net investment hedges are assessed using a method based on changes in spot exchange rates. Gains and losses, representing hedge components excluded from the assessment of effectiveness, are recognized in interest income on our consolidated statements of operations over the contractual term of our net investment hedges on a systematic and rational basis, as documented at hedge inception in accordance with our accounting policy election. All other changes in the fair value of our derivative instruments that qualify as hedges are reported as a component of accumulated other comprehensive income (loss) on our consolidated financial statements. Deferred gains and losses are reclassified out of accumulated other comprehensive income (loss) and into net income in the same period or periods during which the hedged transaction affects earnings, and are presented in the same line item as the earnings effect of the hedged item. For cash flow hedges, this is typically when the periodic swap settlements are made, while for net investment hedges, this occurs when the hedged item is sold or substantially liquidated. To the extent a derivative does not qualify for hedge accounting and is deemed a non-designated hedge, the changes in its fair value are included in net income concurrently.    

Secured Debt and Asset-Specific Debt

Secured Debt and Asset-Specific Debt

We record investments financed with secured debt or asset-specific debt as separate assets and the related borrowings under any secured debt or asset-specific debt are recorded as separate liabilities on our consolidated balance sheets. Interest income earned on the investments and interest expense incurred on the secured debt or asset-specific debt are reported separately on our consolidated statements of operations.    

Senior Loan Participations

Senior Loan Participations

In certain instances, we finance our loans through the non-recourse syndication of a senior loan interest to a third-party. Depending on the particular structure of the syndication, the senior loan interest may remain on our GAAP balance sheet or, in other cases, the sale will be recognized and the senior loan interest will no longer be included in our consolidated financial statements. When these sales are not recognized under GAAP we reflect the transaction by recording a loan participations sold liability on our consolidated balance sheet, however this gross presentation does not impact stockholders’ equity or net income. When the sales are recognized, our balance sheet only includes our remaining subordinate loan and not the non-consolidated senior interest we sold.    

Term Loans

Term Loans

We record our term loans as liabilities on our consolidated balance sheets. Where applicable, any issue discount or transaction expenses are deferred and amortized through the maturity date of the term loans as additional non-cash interest expense.    

Convertible Notes

Convertible Notes

The “Debt with Conversion and Other Options” Topic of the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, requires the liability and equity components of convertible debt instruments that may be settled in cash upon conversion, including partial cash settlement, to be separately accounted for in a manner that reflects the issuer’s nonconvertible debt borrowing rate. The initial proceeds from the sale of convertible notes are allocated between a liability component and an equity component in a manner that reflects interest expense at the rate of similar nonconvertible debt that could have been issued at such time. The equity component represents the excess initial proceeds received over the fair value of the liability component of the notes as of the date of issuance. We measured the estimated fair value of the debt component of our convertible notes as of the respective issuance dates based on our nonconvertible debt borrowing rate. The equity component of each series of our convertible notes is reflected within additional paid-in capital on our consolidated balance sheet, and the resulting issue discount is amortized over the period during which such convertible notes are expected to be outstanding (through the maturity date) as additional non-cash interest expense. The additional non-cash interest expense attributable to such convertible notes will increase in subsequent periods through the maturity date as the notes accrete to their par value over the same period.

Deferred Financing Costs

Deferred Financing Costs

The deferred financing costs that are included as a reduction in the net book value of the related liability on our consolidated balance sheets include issuance and other costs related to our debt obligations. These costs are amortized as interest expense using the effective interest method over the life of the related obligations.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The “Fair Value Measurements and Disclosures” Topic of the FASB, or ASC 820, defines fair value, establishes a framework for measuring fair value, and requires certain disclosures about fair value measurements under GAAP. Specifically, this guidance defines fair value based on exit price, or the price that would be received upon the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.

ASC 820 also establishes a fair value hierarchy that prioritizes and ranks the level of market price observability used in measuring financial instruments. Market price observability is affected by a number of factors, including the type of financial instrument, the characteristics specific to the financial instrument, and the state of the marketplace, including the existence and transparency of transactions between market participants. Financial instruments with readily available quoted prices in active markets generally will have a higher degree of market price observability and a lesser degree of judgment used in measuring fair value.

Financial instruments measured and reported at fair value are classified and disclosed based on the observability of inputs used in the determination, as follows:

• Level 1: Generally includes only unadjusted quoted prices that are available in active markets for identical financial instruments as of the reporting date.

• Level 2: Pricing inputs include quoted prices in active markets for similar instruments, quoted prices in less active or inactive markets for identical or similar instruments where multiple price quotes can be obtained, and other observable inputs, such as interest rates, yield curves, credit risks, and default rates.

• Level 3: Pricing inputs are unobservable for the financial instruments and include situations where there is little, if any, market activity for the financial instrument. These inputs require significant judgment or estimation by management of third-parties when determining fair value and generally represent anything that does not meet the criteria of Levels 1 and 2.

The estimated value of each asset reported at fair value using Level 3 inputs is determined by an internal committee composed of members of senior management of our Manager, including our Chief Executive Officer, Chief Financial Officer, and other senior officers.

Certain of our other assets are reported at fair value, as of quarter-end, either (i) on a recurring basis or (ii) on a nonrecurring basis, as a result of impairment or other events. Our assets that are recorded at fair value are discussed further in Note 15. We generally value our assets recorded at fair value by either (i) discounting expected cash flows based on assumptions regarding the collection of principal and interest and estimated market rates, or (ii) obtaining assessments from third-party dealers. For collateral-dependent loans that are identified as impaired, we measure impairment by comparing our Manager’s estimation of the fair value of the underlying collateral, less costs to sell, to the book value of the respective loan. These valuations require significant judgments, which include assumptions regarding capitalization rates, discount rates, leasing, creditworthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.    

During the three months ended June 30, 2020, we recorded an aggregate $69.7 million CECL reserve specifically related to two of our loans receivable, which was unchanged as of September 30, 2021. These two loans have an aggregate outstanding principal balance of $338.7 million, net of cost-recovery proceeds, as of September 30, 2021. The CECL reserve was recorded based on our Manager’s estimation of the fair value of the loan’s underlying collateral as of September 30, 2021. These loans receivable are therefore measured at fair value on a nonrecurring basis using significant unobservable inputs, and are classified as Level 3 assets in the fair value hierarchy. The significant unobservable inputs used to estimate the fair value of these loans receivable include the exit capitalization rate assumption used to forecast the future sale price of the underlying real estate collateral, which ranged from 4.25% to 4.80%.    

We are also required by GAAP to disclose fair value information about financial instruments, which are not otherwise reported at fair value in our consolidated balance sheet, to the extent it is practicable to estimate a fair value for those instruments. These disclosure requirements exclude certain financial instruments and all non-financial instruments.

The following methods and assumptions are used to estimate the fair value of each class of financial instruments, for which it is practicable to estimate that value:

• Cash and cash equivalents: The carrying amount of cash and cash equivalents approximates fair value.

• Loans receivable, net: The fair values of these loans were estimated by our Manager based on a discounted cash flow methodology, taking into consideration various factors including capitalization rates, discount rates, leasing, credit worthiness of major tenants, occupancy rates, availability and cost of financing, exit plan, loan sponsorship, actions of other lenders, and other factors deemed relevant by our Manager.

• Debt securities held-to-maturity: The fair value of these instruments was estimated by utilizing third-party pricing service providers assuming the securities are not sold prior to maturity. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Derivative financial instruments: The fair value of our foreign currency and interest rate contracts was estimated using advice from a third-party derivative specialist, based on contractual cash flows and observable inputs comprising foreign currency rates and credit spreads.

• Secured debt, net: The fair value of these instruments was estimated based on the rate at which a similar credit facility would currently be priced.

• Securitized debt obligations, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Asset-specific debt, net: The fair value of these instruments was estimated based on the rate at which a similar agreement would currently be priced.

• Term loans, net: The fair value of these instruments was estimated by utilizing third-party pricing service providers. In determining the value of a particular investment, pricing service providers may use broker-dealer quotations, reported trades, or valuation estimates from their internal pricing models to determine the reported price.

• Convertible notes, net: Each series of the convertible notes is actively traded and their fair values were obtained using quoted market prices.

Income Taxes

Income Taxes

Our financial results generally do not reflect provisions for current or deferred income taxes on our REIT taxable income. We believe that we operate in a manner that will continue to allow us to be taxed as a REIT and, as a result, we generally do not expect to pay substantial corporate level taxes other than those payable by our taxable REIT subsidiaries. If we were to fail to meet these requirements, we may be subject to federal, state, and local income tax on current and past income, and penalties. Refer to Note 13 for additional information.

Stock-Based Compensation

Stock-Based Compensation

Our stock-based compensation consists of awards issued to our Manager and certain individuals employed by an affiliate of our Manager that vest over the life of the awards, as well as deferred stock units issued to certain members of our board of directors. Stock-based compensation expense is recognized for these awards in net income on a variable basis over the applicable vesting period of the awards, based on the value of our class A common stock. Refer to Note 14 for additional information.

Earnings per Share

Earnings per Share

Basic earnings per share, or Basic EPS, is computed in accordance with the two-class method and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units outstanding during the period. Our restricted class A common stock is considered a participating security, as defined by GAAP, and has been included in our Basic EPS under the two-class method as these restricted shares have the same rights as our other shares of class A common stock, including participating in any gains or losses.

Diluted earnings per share, or Diluted EPS, is determined using the treasury stock method, and is based on the net earnings allocable to our class A common stock, including restricted class A common stock and deferred stock units, divided by the weighted-average number of shares of our class A common stock, including restricted class A common stock and deferred stock units. Refer to Note 11 for additional discussion of earnings per share.

Foreign Currency

Foreign Currency

In the normal course of business, we enter into transactions not denominated in United States, or U.S., dollars. Foreign exchange gains and losses arising on such transactions are recorded as a gain or loss in our consolidated statements of operations. In addition, we consolidate entities that have a non-U.S. dollar functional currency. Non-U.S. dollar denominated assets and liabilities are translated to U.S. dollars at the exchange rate prevailing at the reporting date and income, expenses, gains, and losses are translated at the average exchange rate over the applicable period. Cumulative translation adjustments arising from the translation of non-U.S. dollar denominated subsidiaries are recorded in other comprehensive income (loss).

Underwriting Commissions and Offering Costs

Underwriting Commissions and Offering Costs

Underwriting commissions and offering costs incurred in connection with common stock offerings are reflected as a reduction of additional paid-in capital. Costs incurred that are not directly associated with the completion of a common stock offering are expensed when incurred.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

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,” or ASU 2020-04. ASU 2020-04 provides optional expedients and exceptions to GAAP requirements for modifications on debt instruments, leases, derivatives, and other contracts, related to the expected market transition from LIBOR, and certain other floating rate benchmark indices, or

collectively, IBORs, to alternative reference rates. ASU 2020-04 generally considers contract modifications related to reference rate reform to be an event that does not require contract remeasurement at the modification date nor a reassessment of a previous accounting determination. In January 2021, the FASB issued ASU 2021-01 “Reference Rate Reform (Topic 848): Scope,” or ASU 2021-01. ASU 2021-01 clarifies that the practical expedients in ASU 2020-04 apply to derivatives impacted by changes in the interest rate used for margining, discounting, or contract price alignment. The guidance in ASU 2020-04 is optional and may be elected over time, through December 31, 2022, as reference rate reform activities occur. Once ASU 2020-04 is elected, the guidance must be applied prospectively for all eligible contract modifications. In the first quarter of 2020, we have elected to apply the hedge accounting expedients, related to probability and the assessments of effectiveness, for future IBOR-indexed cash flows, to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with our past presentation. We continue to evaluate the impact of ASU 2020-04 and may apply other elections, as applicable, as the expected market transition from IBORs to alternative reference rates continues to develop.    

In August 2020, the FASB issued ASU 2020-06 “Debt—Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging—Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity,” or ASU 2020-06. ASU 2020-06 simplifies the accounting for convertible debt by eliminating the beneficial conversion and cash conversion accounting models. ASU 2020-06 also updates the earnings per share calculation and requires entities to assume share settlement when the convertible debt can be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021 and is to be adopted through a cumulative-effect adjustment to the opening balance of retained earnings either at the date of adoption or in the first comparative period presented. Upon adoption of ASU 2020-06, convertible debt proceeds, unless issued with a substantial premium or an embedded conversion feature, will no longer be allocated between debt and equity components. This will reduce the issue discount and result in less non-cash interest expense in our consolidated financial statements. Additionally, ASU 2020-06 will result in the reporting of a diluted earnings per share, if the effect is dilutive, in our consolidated financial statements, regardless of our settlement intent. We expect to adopt ASU 2020-06 using the modified retrospective method of transition, which we expect will result in an aggregate decrease to our additional paid-in capital of $2.4 million and an aggregate decrease to our accumulated deficit of $2.0 million, as of January 1, 2022.

Reference Rate Reform

Reference Rate Reform

LIBOR and certain other floating rate benchmark indices to which our floating rate loans and other loan agreements are tied, including, without limitation, the Euro Interbank Offered Rate, or EURIBOR, the Stockholm Interbank Offered Rate, or STIBOR, the Canadian Dollar Offered Rate, or CDOR, and the Australian Bank Bill Swap Reference Rate, or BBSY, or collectively, IBORs, are the subject of recent national, international and regulatory guidance and proposals for reform. On March 5, 2021, the Financial Conduct Authority of the U.K., or FCA, which has statutory powers to require panel banks to contribute to LIBOR where necessary, announced it would cease publication of certain IBORs, including one-week and two-month USD LIBOR and all tenors of GBP LIBOR, immediately after December 31, 2021 and cease the publication of the remaining tenors of USD LIBOR immediately after June 30, 2023. Additionally, the Federal Reserve Board, Federal Deposit Insurance Corporation, Office of the Comptroller of Currency, and other interagency regulatory bodies have advised U.S. banks to stop entering into new USD LIBOR based contracts by December 31, 2021.

The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of large U.S. financial institutions, has identified the Secured Overnight Financing Rate, or SOFR, a new index calculated using short-term repurchase agreements backed by Treasury securities, as its preferred alternative rate for USD LIBOR. In the U.K., the Bank of England’s working group on Sterling risk free rates set March 31, 2021 as the target date under which GBP LIBOR may no longer be used as the reference rate for new loan products with maturities after December 31, 2021. Market participants have started to transition to the Sterling Overnight Index Average, or SONIA, in line with guidance from the U.K. regulators. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%. Additionally, as of September 30, 2021, daily compounded SONIA is utilized as the floating benchmark rate on five of our loans and two of our credit facilities. As of September 30, 2021, SONIA was 0.05% and three-month GBP LIBOR was 0.08%.

At this time, it is not possible to predict how markets will respond to SOFR, SONIA, or other alternative reference rates as the transition away from USD LIBOR and GBP LIBOR proceeds. Despite the LIBOR transition in other markets, benchmark rate methodologies in Europe, Canada, and Australia have been reformed and rates such as EURIBOR, STIBOR, CDOR, and BBSY may persist as International Organization of Securities Commissions, or IOSCO, compliant reference rates moving forward. However, multi-rate environments may persist in these markets as regulators and working groups have suggested market participants adopt alternative reference rates.

Refer to “Part I. Item 1A. Risk Factors—Risks Related to Our Lending and Investment Activities—The expected discontinuation of currently used financial reference rates and use of alternative replacement reference rates may adversely affect net interest income related to our loans and investments or otherwise adversely affect our results of operations, cash flows and the market value of our investments.” of our Annual Report on Form 10-K filed with the SEC on February 10, 2021.

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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash on our consolidated balance sheets to the total amount shown on our consolidated statements of cash flows ($ in thousands):

	September 30, 2021		September 30, 2020
Cash and cash equivalents	$	211,180	$	427,028
2021 FL4 CLO restricted cash		25,000		—
Total cash, cash equivalents, and restricted cash shown in our consolidated statements of cash flows	$	236,180	$	427,028

Schedule Of Cumulative Effective Adjustment To The Opening Retained Earnings

The following table details the impact of this adoption ($ in thousands):    

	Impact of ASU 2016-13 Adoption
Assets:
Loans
U.S. Loans	$	8,955
Non-U.S. Loans		3,631
Unique Loans		1,356
CECL reserve on loans	$	13,942
CECL reserve on held-to-maturity debt securities		445
Liabilities:
CECL reserve on unfunded loan commitments		3,263
Total impact of ASU 2016-13 adoption on retained earnings	$	17,650

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Loans Receivable, Net (Tables)

9 Months Ended

Sep. 30, 2021

Receivables [Abstract]

Overall Statistics for Loans Receivable Portfolio

The following table details overall statistics for our loans receivable portfolio ($ in thousands):

	September 30, 2021			December 31, 2020
Number of loans		156			120
Principal balance	$	20,522,560		$	16,652,824
Net book value	$	20,276,078		$	16,399,166
Unfunded loan commitments(1)	$	4,220,214		$	3,160,084
Weighted-average spread(2)		+ 3.18	%		+ 3.18	%
Weighted-average all-in yield(2)		+ 3.51	%		+ 3.53	%
Weighted-average maximum maturity (years)(3)		3.3			3.1

(1)	Unfunded commitments will primarily be funded to finance our borrowers’ construction or development of real estate-related assets, capital improvements of existing assets, or lease-related expenditures. These commitments will generally be funded over the term of each loan, subject in certain cases to an expiration date.
(2)	The weighted-average spread and all-in yield are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable to each loan. As of September 30, 2021, 99.6% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. The other 0.4% of our loans earned a fixed rate of interest. We reflect our fixed rate loans as a spread over the relevant floating benchmark rates, as of September 30, 2021 and December 31, 2020, for purposes of the weighted-averages. As of December 31, 2020, 99.4% of our loans by principal balance earned a floating rate of interest, primarily indexed to USD LIBOR. In addition to spread, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs and purchase discounts, as well as the accrual of exit fees. Excludes loans accounted for under the cost-recovery method.
(3)	Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date. As of September 30, 2021, 44% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 56% were open to repayment by the borrower without penalty. As of December 31, 2020, 31% of our loans by principal balance were subject to yield maintenance or other prepayment restrictions and 69% were open to repayment by the borrower without penalty.

Schedule of Loan Receivable Portfolio Based On Floor Rate

The following table details the index rate floors for our loans receivable portfolio as of September 30, 2021 ($ in thousands):

	Loans Receivable Principal Balance
Index rate floors	USD		Non-USD(1)		Total
Fixed rate	$	—	$	78,511	$	78,511
0.00% or no floor(2)		3,265,850		4,912,695		8,178,545
0.01% to 0.24% floor		3,910,133		112,026		4,022,159
0.25% to 0.99% floor		1,363,685		271,616		1,635,301
1.00% or more floor		6,062,597		545,447		6,608,044
Total(3)(4)	$	14,602,265	$	5,920,295	$	20,522,560

(1)	Includes Euro, British Pound Sterling, Swedish Krona, Australian Dollar, and Canadian Dollar Currencies.
(2)	Includes $338.7 million of loans accounted for under the cost-recovery method.
(3)	Excludes investment exposure to $79.2 million subordinate position we own in the $493.3 million 2018 Single Asset Securitization. Refer to Notes 4 and 16 to our consolidated financial statements for further discussion of the 2018 Single Asset Securitization.
(4)	As of September 30, 2021, the weighted-average index rate floor of our loan portfolio was 0.55%. Excluding 0.0% index rate floors, the weighted-average index rate floor was 0.89%.

Activity Relating to Loans Receivable Portfolio

Activity relating to our loans receivable portfolio was as follows ($ in thousands):    

	Principal Balance			Deferred Fees / Other Items(1)			Net Book Value
Loans receivable, as of December 31, 2020	$	16,652,824		$	(80,109	)	$	16,572,715
Loan fundings		7,449,491			—			7,449,491
Loan repayments and sales		(3,351,118	)		—			(3,351,118	)
Unrealized (loss) gain on foreign currency translation		(228,637	)		1,157			(227,480	)
Deferred fees and other items		—			(79,971	)		(79,971	)
Amortization of fees and other items		—			42,829			42,829
Loans receivable, as of September 30, 2021	$	20,522,560		$	(116,094	)	$	20,406,466
CECL reserve								(130,388	)
Loans receivable, net, as of September 30, 2021							$	20,276,078

(1)   Other items primarily consist of purchase and sale discounts or premiums, exit fees, and deferred origination expenses. 

Property Type and Geographic Distribution of Properties Securing Loans in Portfolio

The tables below detail the property type and geographic distribution of the properties securing the loans in our portfolio ($ in thousands):

September 30, 2021
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		65	$	10,239,432		$	10,940,778		50%
Multifamily		56		4,465,938			4,494,065		21
Hospitality		18		2,777,827			2,879,888		13
Industrial		5		894,865			901,211		4
Retail		6		770,045			773,491		4
Life Sciences		2		407,595			413,209		2
Other		4		850,764			1,117,525		6
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		26	$	4,463,202		$	4,491,804		21%
West		32		3,548,756			4,126,256		19
Southeast		33		3,425,624			3,618,296		17
Southwest		24		1,786,470			1,796,817		8
Midwest		10		1,201,663			1,205,877		6
Northwest		2		94,670			94,963		—
Subtotal		127		14,520,385			15,334,013		71
International
United Kingdom		14		1,754,872			1,999,180		9
Spain		4		1,448,355			1,455,967		7
Ireland		1		1,233,286			1,237,547		6
Sweden		1		564,277			569,529		3
Australia		2		175,786			176,144		1
Canada		2		66,881			66,864		—
Other Europe		5		642,624			680,923		3
Subtotal		29		5,886,081			6,186,154		29
Total loans receivable		156	$	20,406,466		$	21,520,167		100%
CECL reserve				(130,388	)
Loans receivable, net			$	20,276,078

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million of such non-consolidated senior interests as of September 30, 2021.
(2)	Excludes investment exposure to the $493.3 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

December 31, 2020
Property Type	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
Office		58	$	9,834,509		$	10,303,895		58%
Hospitality		14		2,295,255			2,369,454		14
Multifamily		31		1,788,149			1,862,667		11
Industrial		6		673,912			675,344		4
Retail		4		538,702			551,243		3
Life Sciences		1		146,290			147,763		1
Other		6		1,295,898			1,544,255		9
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

Geographic Location	Number of Loans		Net Book Value			Total Loan Exposure(1)(2)		Percentage of Portfolio
United States
Northeast		24	$	4,050,732		$	4,069,712		23%
West		27		2,942,126			3,413,089		20
Southeast		25		2,624,701			2,707,080		16
Midwest		8		973,702			976,693		6
Southwest		9		597,100			598,813		3
Northwest		1		15,404			15,413		—
Subtotal		94		11,203,765			11,780,800		68
International
United Kingdom		13		1,816,901			2,066,390		12
Ireland		1		1,309,443			1,317,846		8
Spain		2		1,247,162			1,252,080		7
Australia		2		259,126			259,788		1
Canada		3		82,185			82,262		—
Other Europe		5		654,133			695,455		4
Subtotal		26		5,368,950			5,673,821		32
Total loans receivable		120	$	16,572,715		$	17,454,621		100%
CECL reserve				(173,549	)
Loans receivable, net			$	16,399,166

(1)	In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $801.8 million of such non-consolidated senior interests as of December 31, 2020.
(2)	Excludes investment exposure to the $735.5 million 2018 Single Asset Securitization. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Principal Balance and Net Book Value of Loans Receivable Based on Internal Risk Ratings

The following table allocates the principal balance and net book value of our loans receivable based on our internal risk ratings ($ in thousands):    

	September 30, 2021						December 31, 2020
Risk Rating	Number of Loans	Net Book Value			Total Loan Exposure(1)(2)		Number of Loans	Net Book Value			Total Loan Exposure(1)(2)
1	8	$	931,330		$	931,831	8	$	777,163		$	778,283
2	27		4,800,884			4,836,029	17		2,513,848			2,528,835
3	110		12,060,623			13,129,870	79		9,911,914			10,763,496
4	9		2,276,394			2,283,701	14		3,032,593			3,045,309
5	2		337,235			338,736	2		337,197			338,698
Total loans receivable	156	$	20,406,466		$	21,520,167	120	$	16,572,715		$	17,454,621
CECL reserve			(130,388	)					(173,549	)
Loans receivable, net		$	20,276,078					$	16,399,166

(1) In certain instances, we finance our loans through the non-recourse sale of a senior loan interest that is not included in our consolidated financial statements. See Note 2 for further discussion. Total loan exposure encompasses the entire loan we originated and financed, including $997.6 million and $801.8 million of such non-consolidated senior interests as of September 30, 2021 and December 31, 2020, respectively.

(2) Excludes investment exposure to the 2018 Single Asset Securitization of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

Schedule Of Current Expected Credit Loss Reserve By Pool

The following table presents the activity in our loans receivable CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Loans Receivable, Net
CECL reserve as of December 31, 2020	$	42,995		$	27,734		$	33,159		$	69,661	$	173,549
Increase (decrease) in CECL reserve		1,539			(3,134	)		146			—		(1,449	)
CECL reserve as of March 31, 2021	$	44,534		$	24,600		$	33,305		$	69,661	$	172,100
Decrease in CECL reserve		(26,861	)		(15,771	)		(523	)		—		(43,155	)
CECL reserve as of June 30, 2021	$	17,673		$	8,829		$	32,782		$	69,661	$	128,945
Increase (decrease) in CECL reserve		3,253			(283	)		(1,527	)		—		1,443
CECL reserve as of September 30, 2021	$	20,926		$	8,546		$	31,255		$	69,661	$	130,388
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		8,955			3,631			1,356			—		13,942
Increase in CECL reserve		55,906			18,194			24,652			—		98,752
CECL reserve as of March 31, 2020	$	64,861		$	21,825		$	26,008		$	—	$	112,694
(Decrease) increase in CECL reserve		(3,457	)		(2,080	)		1,232			69,661		65,356
CECL reserve as of June 30, 2020	$	61,404		$	19,745		$	27,240		$	69,661	$	178,050
(Decrease) increase in CECL reserve		(10,762	)		7,035			2,703			—		(1,024	)
CECL reserve as of September 30, 2020	$	50,642		$	26,780		$	29,943		$	69,661	$	177,026

Schedule of Loans Receivable Based On Our Internal Risk Ratings, Separated By Year Of Origination

The following tables present the net book value of our loan portfolio as of September 30, 2021 and December 31, 2020, respectively, by year of origination, investment pool, and risk rating ($ in thousands):    

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of September 30, 2021
Risk Rating	2021		2020		2019		2018		2017		Prior		Total
U.S. loans
1	$	—	$	43,745	$	696,764	$	—	$	66,188	$	—	$	806,697
2		694,114		—		586,976		887,935		391,740		81,256		2,642,021
3		4,979,207		830,399		1,844,466		1,522,591		602,976		269,127		10,048,766
4		—		—		96,494		540,766		63,365		51,923		752,548
5		—		—		—		—		—		—		—
Total U.S. loans	$	5,673,321	$	874,144	$	3,224,700	$	2,951,292	$	1,124,269	$	402,306	$	14,250,032
Non-U.S. loans
1	$	—	$	—	$	34,877	$	—	$	89,756	$	—	$	124,633
2		564,277		100,126		1,383,692		—		—		110,768		2,158,863
3		455,534		—		907,728		393,573		—		—		1,756,835
4		—		—		346,071		—		—		—		346,071
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	1,019,811	$	100,126	$	2,672,368	$	393,573	$	89,756	$	110,768	$	4,386,402
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		196,073		—		58,949		255,022
4		—		—		321,156		856,619		—		—		1,177,775
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	—	$	321,156	$	1,052,692	$	—	$	58,949	$	1,432,797
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		—		284,808		—		52,427		337,235
Total impaired loans	$	—	$	—	$	—	$	284,808	$	—	$	52,427	$	337,235
Total loans receivable
1	$	—	$	43,745	$	731,641	$	—	$	155,944	$	—	$	931,330
2		1,258,391		100,126		1,970,668		887,935		391,740		192,024		4,800,884
3		5,434,741		830,399		2,752,194		2,112,237		602,976		328,076		12,060,623
4		—		—		763,721		1,397,385		63,365		51,923		2,276,394
5		—		—		—		284,808		—		52,427		337,235
Total loans receivable	$	6,693,132	$	974,270	$	6,218,224	$	4,682,365	$	1,214,025	$	624,450	$	20,406,466
CECL reserve														(130,388	)
Loans receivable, net													$	20,276,078

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $77.6 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization. 

	Net Book Value of Loans Receivable by Year of Origination(1)(2)
	As of December 31, 2020
Risk Rating	2020		2019		2018		2017		2016		Prior		Total
U.S. loans
1	$	—	$	231,796	$	253,674	$	43,906	$	17,009	$	—	$	546,385
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		781,595		2,391,297		1,672,897		1,134,288		227,466		220,644		6,428,187
4		65,978		170,541		1,055,142		63,293		105,380		—		1,460,334
5		—		—		—		—		—		—		—
Total U.S. loans	$	847,573	$	3,075,651	$	4,153,881	$	1,998,625	$	429,703	$	443,321	$	10,948,754
Non-U.S. loans
1	$	—	$	—	$	136,021	$	94,757	$	—	$	—	$	230,778
2		—		—		—		—		—		—		—
3		105,300		2,526,225		479,512		—		113,653		—		3,224,690
4		—		256,494		—		—		—		—		256,494
5		—		—		—		—		—		—		—
Total Non-U.S. loans	$	105,300	$	2,782,719	$	615,533	$	94,757	$	113,653	$	—	$	3,711,962
Unique loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		198,433		—		—		60,604		259,037
4		—		325,097		990,668		—		—		—		1,315,765
5		—		—		—		—		—		—		—
Total unique loans	$	—	$	325,097	$	1,189,101	$	—	$	—	$	60,604	$	1,574,802
Impaired loans
1	$	—	$	—	$	—	$	—	$	—	$	—	$	—
2		—		—		—		—		—		—		—
3		—		—		—		—		—		—		—
4		—		—		—		—		—		—		—
5		—		—		284,809		—		—		52,388		337,197
Total impaired loans	$	—	$	—	$	284,809	$	—	$	—	$	52,388	$	337,197
Total loans receivable
1	$	—	$	231,796	$	389,695	$	138,663	$	17,009	$	—	$	777,163
2		—		282,017		1,172,168		757,138		79,848		222,677		2,513,848
3		886,895		4,917,522		2,350,842		1,134,288		341,119		281,248		9,911,914
4		65,978		752,132		2,045,810		63,293		105,380		—		3,032,593
5		—		—		284,809		—		—		52,388		337,197
Total loans receivable	$	952,873	$	6,183,467	$	6,243,324	$	2,093,382	$	543,356	$	556,313	$	16,572,715
CECL reserve														(173,549	)
Loans receivable, net													$	16,399,166

(1) Date loan was originated or acquired by us. Origination dates are subsequently updated to reflect material loan modifications.

(2) Excludes the $75.7 million net book value of our held-to-maturity debt securities which represents our subordinate position we own in the 2018 Single Asset Securitization, and is included in other assets on our consolidated balance sheets. See Note 4 for details of the subordinate position we own in the 2018 Single Asset Securitization.

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Other Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2021

Summary of Components of Other Assets

The following table details the components of our other assets ($ in thousands):

	September 30, 2021			December 31, 2020
Accrued interest receivable	$	78,689		$	66,757
Debt securities held-to-maturity(1)		77,916			77,445
CECL reserve		(280	)		(1,723	)
Debt securities held-to-maturity, net		77,636			75,722
Derivative assets		35,858			522
2021 FL4 CLO restricted cash(2)		25,000			—
Loan portfolio payments held by servicer(3)		766			73,224
Prepaid expenses		43			973
Collateral deposited under derivative agreements		—			51,050
Prepaid taxes		—			376
Other		622			1,195
Total	$	218,614		$	269,819

(1) Represents the subordinate position we own in the 2018 Single Asset Securitization, which held aggregate loan assets of $493.3 million and $735.5 million as of September 30, 2021 and December 31, 2020, respectively, with a yield to full maturity of L+10.0% and a maximum maturity date of June 9, 2025, assuming all extension options are exercised by the borrower. Refer to Note 16 for additional discussion.

(2) Represents $25.0 million of restricted cash held by our 2021 FL4 collateralized loan obligation that can be used to acquire and finance additional assets for up to six months from the date of closing.

(3) Represents loan principal and interest payments held by our third-party loan servicer as of the balance sheet date which were remitted to us during the subsequent remittance cycle.

Schedule Of Current Expected Credit Loss Reserve By Pool

The following table presents the activity in our loans receivable CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Loans Receivable, Net
CECL reserve as of December 31, 2020	$	42,995		$	27,734		$	33,159		$	69,661	$	173,549
Increase (decrease) in CECL reserve		1,539			(3,134	)		146			—		(1,449	)
CECL reserve as of March 31, 2021	$	44,534		$	24,600		$	33,305		$	69,661	$	172,100
Decrease in CECL reserve		(26,861	)		(15,771	)		(523	)		—		(43,155	)
CECL reserve as of June 30, 2021	$	17,673		$	8,829		$	32,782		$	69,661	$	128,945
Increase (decrease) in CECL reserve		3,253			(283	)		(1,527	)		—		1,443
CECL reserve as of September 30, 2021	$	20,926		$	8,546		$	31,255		$	69,661	$	130,388
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		8,955			3,631			1,356			—		13,942
Increase in CECL reserve		55,906			18,194			24,652			—		98,752
CECL reserve as of March 31, 2020	$	64,861		$	21,825		$	26,008		$	—	$	112,694
(Decrease) increase in CECL reserve		(3,457	)		(2,080	)		1,232			69,661		65,356
CECL reserve as of June 30, 2020	$	61,404		$	19,745		$	27,240		$	69,661	$	178,050
(Decrease) increase in CECL reserve		(10,762	)		7,035			2,703			—		(1,024	)
CECL reserve as of September 30, 2020	$	50,642		$	26,780		$	29,943		$	69,661	$	177,026

Summary of Components of Other Liabilities

The following table details the components of our other liabilities ($ in thousands):

	September 30, 2021		December 31, 2020
Accrued dividends payable	$	97,350	$	91,004
Accrued interest payable		25,772		20,548
Accrued management and incentive fees payable		19,342		19,158
Accounts payable and other liabilities		11,080		2,671
Current expected credit loss reserve for unfunded loan commitments(1)		5,203		10,031
Derivative liabilities		355		58,915
Secured debt repayments pending servicer remittance(2)		322		—
Total	$	159,424	$	202,327

(1) Represents the CECL reserve related to our unfunded loan commitments. See Note 2 for further discussion of the CECL reserve.

(2) Represents pending transfers from our third-party loan servicer that were remitted to our banking counterparties during the subsequent remittance cycle.

Schedule of Unfunded Loan Commitments Reserve

The following table presents the activity in the CECL reserve related to our unfunded loan commitments by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	U.S. Loans			Non-U.S. Loans			Unique Loans			Impaired Loans		Total
Unfunded Loan Commitments
CECL reserve as of December 31, 2020	$	6,953		$	2,994		$	84		$	—	$	10,031
Increase (decrease) in CECL reserve		216			778			(4	)		—		990
CECL reserve as of March 31, 2021	$	7,169		$	3,772		$	80		$	—	$	11,021
Decrease in CECL reserve		(4,315	)		(2,632	)		(37	)		—		(6,984	)
CECL reserve as of June 30, 2021	$	2,854		$	1,140		$	43		$	—	$	4,037
Increase (decrease) in CECL reserve		566			643			(43	)		—		1,166
CECL reserve as of September 30, 2021	$	3,420		$	1,783		$	—		$	—	$	5,203
CECL reserve as of December 31, 2019	$	—		$	—		$	—		$	—	$	—
Initial CECL reserve on January 1, 2020		2,801			453			9			—		3,263
Increase in CECL reserve		16,992			2,219			62			—		19,273
CECL reserve as of March 31, 2020	$	19,793		$	2,672		$	71		$	—	$	22,536
(Decrease) increase in CECL reserve		(6,957	)		(594	)		17			—		(7,534	)
CECL reserve as of June 30, 2020	$	12,836		$	2,078		$	88		$	—	$	15,002
(Decrease) increase in CECL reserve		(3,657	)		732			(20	)		—		(2,945	)
CECL reserve as of September 30, 2020	$	9,179		$	2,810		$	68		$	—	$	12,057

Held To Maturity Debt Securities [Member]

Schedule Of Current Expected Credit Loss Reserve By Pool

The following table presents the activity in our debt securities CECL reserve by investment pool for the three and nine months ended September 30, 2021 and 2020 ($ in thousands):

	Debt Securities Held-To-Maturity
CECL reserve as of December 31, 2020	$	1,723
Decrease in CECL reserve		(834	)
CECL reserve as of March 31, 2021	$	889
Decrease in CECL reserve		(767	)
CECL reserve as of June 30, 2021	$	122
Increase in CECL reserve		158
CECL reserve as of September 30, 2021	$	280
CECL reserve as of December 31, 2019	$	—
Initial CECL reserve on January 1, 2020		445
Increase in CECL reserve		4,677
CECL reserve as of March 31, 2020	$	5,122
Decrease in CECL reserve		(1,003	)
CECL reserve as of June 30, 2020	$	4,119
Decrease in CECL reserve		(2,086	)
CECL reserve as of September 30, 2020	$	2,033

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Secured Debt , Net (Tables)

9 Months Ended

Sep. 30, 2021

Schedule of Secured Debt Agreements

The following table details our secured debt ($ in thousands):

	Secured Debt Borrowings Outstanding
	September 30, 2021			December 31, 2020
Secured credit facilities	$	11,188,855		$	7,896,863
Acquisition facility		—			—
Total secured debt	$	11,188,855		$	7,896,863
Deferred financing costs(1)		(18,525	)		(16,327	)
Net book value of secured debt	$	11,170,330		$	7,880,536

(1) Costs incurred in connection with our secured debt are recorded on our consolidated balance sheet when incurred and recognized as a component of interest expense over the life of each related facility.

Schedule of Secured Credit Facilities

The following table details our secured credit facilities as of September 30, 2021 ($ in thousands):

September 30, 2021
				Wtd Avg.				Wtd Avg.	Recourse Limitation
Currency	Lenders(1)	Borrowings		Maturity(2)	Loan Count	Collateral(3)		Maturity(4)	Wtd. Avg.	Range
USD	12	$	7,022,125	5/5/2025	114	$	9,557,168	5/1/2025	29%	25% - 100%
EUR	6		2,369,013	7/26/2024	10		3,150,165	7/4/2024	48%	25% - 100%
GBP	6		1,163,414	10/22/2024	12		1,739,121	11/9/2024	26%	25% - 50%
Others(5)	4		634,303	6/17/2025	5		812,537	5/28/2025	27%	25% - 100%
Total	12	$	11,188,855	2/17/2025	141	$	15,258,991	2/10/2025	32%	25% - 100%

(1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders.

(2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans.

(3) Represents the principal balance of the collateral assets.

(4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date.

(5) Includes Swedish Krona, Australian Dollar, and Canadian Dollar currencies.

Schedule of All in Cost of Secured Credit Facilities

The following tables detail the spread of our secured credit facilities as of September 30, 2021 and December 31, 2020 ($ in thousands):

	Nine Months Ended September 30, 2021		September 30, 2021
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg. All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg. All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	3,065,115	$	6,288,807		+ 1.54	%	$	8,176,251		+ 3.09	%		+ 1.55	%
+ 1.51% to + 1.75%		1,268,796		2,780,867		+ 1.88	%		3,851,597		+ 3.40	%		+ 1.52	%
+ 1.76% to + 2.00%		479,767		897,258		+ 2.08	%		1,253,906		+ 3.95	%		+ 1.87	%
+ 2.01% or more		465,872		1,221,923		+ 2.42	%		1,977,237		+ 4.42	%		+ 2.00	%
Total	$	5,279,550	$	11,188,855		+ 1.77	%	$	15,258,991		+ 3.41	%		+ 1.64	%

	Year Ended  December 31, 2020		December 31, 2020
Spread(1)	New Financings(2)		Total Borrowings		Wtd. Avg.  All-in Cost(1)(3)(4)			Collateral(5)		Wtd. Avg.  All-in Yield(1)(6)			Net Interest Margin(7)
+ 1.50% or less	$	376,085	$	4,192,280		+ 1.59	%	$	6,338,626		+ 3.09	%		+ 1.50	%
+ 1.51% to + 1.75%		172,447		1,945,692		+ 1.95	%		2,975,581		+ 3.43	%		+ 1.48	%
+ 1.76% to + 2.00%		215,056		926,666		+ 2.06	%		1,212,546		+ 3.83	%		+ 1.77	%
+ 2.01% or more		134,928		832,225		+ 2.49	%		1,514,154		+ 4.34	%		+ 1.85	%
Total	$	898,516	$	7,896,863		+ 1.83	%	$	12,040,907		+ 3.40	%		+ 1.57	%

(1) The spread, all-in cost, and all-in yield are expressed over the relevant floating benchmark rates, which include USD LIBOR, GBP LIBOR, SONIA, EURIBOR, STIBOR, BBSY, and CDOR, as applicable.

(2) Represents borrowings outstanding as of September 30, 2021 and December 31, 2020, respectively, for new financings during the nine months ended September 30, 2021 and year ended December 31, 2020, respectively, based on the date collateral was initially pledged to each credit facility.

(3) In addition to spread, the cost includes the associated deferred fees and expenses related to the respective borrowings.

(4) Represents the weighted-average all-in cost as of September 30, 2021 and December 31, 2020, respectively, and is not necessarily indicative of the spread applicable to recent or future borrowings.

(5) Represents the principal balance of the collateral assets.

(6) In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, and purchase discounts, as well as the accrual of exit fees.

(7) Represents the difference between the weighted-average all-in yield and weighted-average all-in cost.

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Securitized Debt Obligations, Net (Tables)

9 Months Ended

Sep. 30, 2021

Text Block [Abstract]

Schedule of Information on Securitized Debt Obligations

The following tables detail our securitized debt obligations ($ in thousands):

	September 30, 2021
Securitized Debt Obligations	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2021 FL4 Collateralized Loan Obligation
Collateral assets	35	$	1,000,000	$	1,000,000		+ 3.41	%		July 2024
Financing provided	1		803,750		796,864		+ 1.65	%		May 2038
2020 FL3 Collateralized Loan Obligation
Collateral assets	21		1,000,000		1,000,000		+ 3.02	%		April 2024
Financing provided(2)	1		808,750		803,378		+ 2.10	%		November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets	24		1,500,000		1,500,000		+ 3.10	%		March 2024
Financing provided(2)	1		1,243,125		1,235,807		+ 1.45	%		February 2038
Total
Collateral assets	80	$	3,500,000	$	3,500,000		+ 3.17	%
Financing provided(4)	3	$	2,855,625	$	2,836,049		+ 1.69	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and SOFR, as applicable to each securitized debt obligation. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	During the three and nine months ended September 30, 2021, we recorded $10.7 million and $35.2 million, respectively, of interest expense related to our securitized debt obligations.

	December 31, 2020
Securitized Debt Obligations	Count		Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)(2)			Term(3)
2020 FL3 Collateralized Loan Obligation
Collateral assets		25	$	1,000,000	$	1,000,000		+ 3.09	%	February 2024
Financing provided		1		808,750		800,993		+ 2.08	%	November 2037
2020 FL2 Collateralized Loan Obligation
Collateral assets		31		1,500,000		1,500,000		+ 3.17	%	January 2024
Financing provided		1		1,243,125		1,233,464		+ 1.44	%	February 2038
2017 FL1 Collateralized Loan Obligation
Collateral assets		15		666,334		666,334		+ 3.39	%	January 2023
Financing provided		1		483,834		483,113		+ 1.83	%	June 2035
2017 Single Asset Securitization
Collateral assets(4)		1		619,194		618,766		+ 3.57	%	June 2023
Financing provided		1		404,929		404,929		+ 1.63	%	June 2033
Total
Collateral assets		72	$	3,785,528	$	3,785,100		+ 3.25	%
Financing provided(5)		4	$	2,940,638	$	2,922,499		+ 1.70	%

(1)	In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.
(2)	The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR.
(3)	Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.
(4)	The collateral assets for the 2017 Single Asset Securitization include the total loan amount, of which we securitized $500.0 million.
(5)	During the three and nine months ended September 30, 2020, we recorded $9.1 million and $31.8 million, respectively, of interest expense related to our securitized debt obligations.

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Asset-Specific Debt, Net (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Abstract]

Summary of Asset-Specific Financings

The following tables detail our asset-specific debt ($ in thousands):

	September 30, 2021
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	3	$	436,562	$	424,650		+ 4.34	%		Dec. 2024
Financing provided	3	$	328,068	$	320,895		+ 3.13	%		Dec. 2024

	December 31, 2020
Asset-Specific Debt	Count	Principal Balance		Book Value		Wtd. Avg. Yield/Cost(1)			Wtd. Avg. Term(2)
Collateral assets	4	$	512,794	$	499,085		+ 4.65	%		Oct. 2023
Financing provided	4	$	399,699	$	391,269		+ 3.48	%		Oct. 2023

(1)	These floating rate loans and related liabilities are indexed to the various benchmark rates relevant in each arrangement in terms of currency and payment frequency. Therefore the net exposure to each benchmark rate is in direct proportion to our net assets indexed to that rate. In addition to cash coupon, yield/cost includes the amortization of deferred origination fees / financing costs.
(2)	The weighted-average term is determined based on the maximum maturity of the corresponding loans, assuming all extension options are exercised by the borrower. Each of our asset-specific debt is term-matched to the corresponding collateral loans.

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Term Loans, Net (Tables)

9 Months Ended

Sep. 30, 2021

Debt Disclosure [Line Items]

Schedule of Debt

The following table details our secured credit facilities as of September 30, 2021 ($ in thousands):

September 30, 2021
				Wtd Avg.				Wtd Avg.	Recourse Limitation
Currency	Lenders(1)	Borrowings		Maturity(2)	Loan Count	Collateral(3)		Maturity(4)	Wtd. Avg.	Range
USD	12	$	7,022,125	5/5/2025	114	$	9,557,168	5/1/2025	29%	25% - 100%
EUR	6		2,369,013	7/26/2024	10		3,150,165	7/4/2024	48%	25% - 100%
GBP	6		1,163,414	10/22/2024	12		1,739,121	11/9/2024	26%	25% - 50%
Others(5)	4		634,303	6/17/2025	5		812,537	5/28/2025	27%	25% - 100%
Total	12	$	11,188,855	2/17/2025	141	$	15,258,991	2/10/2025	32%	25% - 100%

(1) Represents the number of lenders with fundings advanced in each respective currency, as well as the total number of facility lenders.

(2) Based on the earlier of (i) the maximum maturity date of each secured credit facility, or (ii) the maximum maturity date of the collateral loans.

(3) Represents the principal balance of the collateral assets.

(4) Maximum maturity assumes all extension options are exercised by the borrower, however our loans may be repaid prior to such date.

(5) Includes Swedish Krona, Australian Dollar, and Canadian Dollar currencies.

Schedule of Net Book Value of Our Term Loans on Our Consolidated Balance Sheets

The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	622,500		$	622,500
Unamortized discount		(3,301	)		(5,715	)
Deferred financing costs		(214	)		(396	)
Net book value	$	618,985		$	616,389

Term Loan [Member]

Debt Disclosure [Line Items]

Schedule of Debt

As of September 30, 2021, the following senior term loan facilities, or Term Loans, were outstanding ($ in thousands):

Term Loans	Face Value		Interest Rate(1)			All-in Cost(1)(2)			Maturity
B-1 Term Loan	$	932,256		+ 2.25	%		+ 2.53	%		April 23, 2026
B-2 Term Loan	$	420,450		+ 2.75	%		+ 3.42	%		April 23, 2026

(1)	The B-2 Term Loan borrowing is subject to a LIBOR floor of 0.50%.
(2)	Includes issue discount and transaction expenses that are amortized through interest expense over the life of the Term Loans.

Schedule of Net Book Value of Our Term Loans on Our Consolidated Balance Sheets

The following table details the net book value of our Term Loans on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	1,352,706		$	1,062,766
Unamortized discount		(9,748	)		(9,807	)
Deferred financing costs		(13,321	)		(11,255	)
Net book value	$	1,329,637		$	1,041,704

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Convertible Notes, Net (Tables)

9 Months Ended

Sep. 30, 2021

Text Block [Abstract]

Summary of Outstanding Convertible Senior Notes

As of September 30, 2021, the following convertible senior notes, or Convertible Notes, were outstanding ($ in thousands):

Convertible Notes Issuance	Face Value		Interest Rate			All-in Cost(1)			Conversion Rate(2)		Maturity
May 2017	$	402,500		4.38	%		4.85	%		28.0324		May 5, 2022
March 2018	$	220,000		4.75	%		5.33	%		27.6052		March 15, 2023

(1)

Includes issuance costs that are amortized through interest expense over the life of the Convertible Notes using the effective interest method.

(2)

Represents the shares of class A common stock per $1,000 principal amount of Convertible Notes, which is equivalent to a conversion price of $35.67 and $36.23 per share of class A common stock, respectively, for the May 2017 and March 2018 convertible notes. The cumulative dividend threshold as defined in the respective May 2017 and March 2018 convertible notes supplemental indentures have not been exceeded as of September 30, 2021.

Summary of Details of Net Book Value of Convertible Note

The following table details the net book value of our Convertible Notes on our consolidated balance sheets ($ in thousands):

	September 30, 2021			December 31, 2020
Face value	$	622,500		$	622,500
Unamortized discount		(3,301	)		(5,715	)
Deferred financing costs		(214	)		(396	)
Net book value	$	618,985		$	616,389

Summary of Details about Interest Expense

The following table details our interest expense related to the Convertible Notes ($ in thousands):

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
Cash coupon	$	7,015	$	7,015	$	21,045	$	21,045
Discount and issuance cost amortization		873		831		2,595		2,470
Total interest expense	$	7,888	$	7,846	$	23,640	$	23,515

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Derivative Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk

The following tables detail our outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (notional amount in thousands):

September 30, 2021
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	1	C$	21,020		1.0	%		CDOR		0.2

December 31, 2020
Interest Rate Derivatives	Number of Instruments	Notional Amount		Strike			Index		Wtd.-Avg. Maturity (Years)
Interest Rate Caps	2	C$	38,293		1.0	%		CDOR		0.8

Summary of Outstanding Foreign Exchange Derivatives Designated as Net Investment Hedges of Foreign Currency Risk

The following table details our outstanding foreign exchange derivatives that were designated as net investment hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Foreign Currency Derivatives	Number of Instruments	Notional Amount		Foreign Currency Derivatives	Number of Instruments		Notional Amount
Buy USD / Sell SEK Forward	1	kr	999,500	Buy USD / Sell EUR Forward		8	€	754,722
Buy USD / Sell EUR Forward	6	€	817,642	Buy USD / Sell GBP Forward		4	€	372,487
Buy USD / Sell GBP Forward	1	£	542,551	Buy USD / Sell AUD Forward		1	A$	92,800
Buy USD / Sell AUD Forward	1	A$	89,500	Buy USD / Sell CAD Forward		1	C$	26,200
Buy USD / Sell CAD Forward	1	C$	21,000

Summary of Non-designated Hedges

The following table details our outstanding foreign exchange derivatives that were non-designated hedges of foreign currency risk (notional amount in thousands):

September 30, 2021				December 31, 2020
Non-designated Hedges	Number of Instruments	Notional Amount		Non-designated Hedges	Number of Instruments		Notional Amount
Buy GBP / Sell EUR Forward	1	€	8,410	Buy EUR / Sell GBP Forward		2	£	146,207
Buy EUR / Sell USD Forward	1	€	13,900	Buy USD / Sell EUR Forward		1	€	8,410
Buy USD / Sell EUR Forward	1	€	13,900

Schedule of Derivative Instruments Gain Loss in Statement of Operations

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

				Increase (Decrease) to Net Interest Income Recognized from Foreign Exchange Contracts
				Three Months			Three Months			Nine Months			Nine Months
Foreign Exchange Contracts	Location of Income			Ended			Ended			Ended			Ended
in Hedging Relationships	(Expense) Recognized			September 30, 2021			September 30, 2020			September 30, 2021			September 30, 2020
Designated Hedges		Interest Income	(1)	$	1,542		$	1,794		$	5,294		$	2,303
Non-Designated Hedges		Interest Income	(1)		34			(227	)		(340	)		(222	)
Non-Designated Hedges		Interest Expense	(2)		(8	)		669			(7,139	)		(846	)
Total				$	1,568		$	2,236		$	(2,185	)	$	1,235

(1)	Represents the forward points earned on our foreign currency forward contracts, which reflect the interest rate differentials between the applicable base rate for our foreign currency investments and USD LIBOR. These forward contracts effectively convert the rate exposure to USD LIBOR, resulting in additional interest income earned in U.S. dollar terms.
(2)	Represents the spot rate movement in our non-designated hedges, which are marked-to-market and recognized in interest expense.

Summary of Fair Value of Derivative Financial Instruments

The following table summarizes the fair value of our derivative financial instruments ($ in thousands):

	Fair Value of Derivatives in an Asset Position(1) as of				Fair Value of Derivatives in a Liability Position(2) as of
	September 30, 2021		December 31, 2020		September 30, 2021		December 31, 2020
Derivatives designated as hedging instruments:
Foreign exchange contracts	$	35,460	$	521	$	—	$	55,758
Interest rate derivatives		—		1		—		—
Total	$	35,460	$	522	$	—	$	55,758
Derivatives not designated as hedging instruments:
Foreign exchange contracts	$	398	$	—	$	355	$	3,157
Interest rate derivatives		—		—		—		—
Total	$	398	$	—	$	355	$	3,157
Total Derivatives	$	35,858	$	522	$	355	$	58,915

(1) Included in other assets in our consolidated balance sheets.

(2) Included in other liabilities in our consolidated balance sheets.

Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations

The following table presents the effect of our derivative financial instruments on our consolidated statements of operations ($ in thousands):

	Amount of Gain Recognized in OCI on Derivatives				Location of Gain (Loss)			Amount of Loss Reclassified from Accumulated OCI into Income
	Three Months		Nine Months		Reclassified from Accumulated			Three Months			Nine Months
Derivatives in	Ended		Ended					Ended			Ended
Hedging Relationships	September 30, 2021		September 30, 2021		OCI into Income			September 30, 2021			September 30, 2021
Net Investment Hedges
Foreign exchange contracts(1)	$	46,078	$	65,052		Interest Expense		$	—		$	—
Cash Flow Hedges
Interest rate derivatives		—		—		Interest Expense	(2)		(5	)		(7	)
Total	$	46,078	$	65,052				$	(5	)	$	(7	)

(1)	During the three and nine months ended September 30, 2021, we received net cash settlements of $18.3 million and paid net cash settlements of $31.0 million, respectively, on our foreign currency forward contracts. Those amounts are included as a component of accumulated other comprehensive income (loss) on our consolidated balance sheets.
(2)	During the three months ended September 30, 2021, we recorded total interest and related expenses of $82.7 million, which included interest expense of $5,000 related to our cash flow hedges. During the nine months ended September 30, 2021, we recorded total interest and related expenses of $243.4 million, which included interest expense of $7,000.

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Equity (Tables)

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Summary of Class A Common Stock Issuances

The following table details our issuances of class A common stock during the nine months ended September 30, 2021 ($ in thousands, except share and per share data):

	Class A Common Stock Offerings
	September 2021
Shares issued		10,000,000
Gross / net issue price per share(1)		$31.45 / $31.24
Net proceeds(2)		$311,955

(1)	Represents the gross price per share issued, as well as the net proceeds per share after underwriting or sales discounts and commissions.
(2)	Net proceeds represents proceeds received from the underwriters less applicable transaction costs.

Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units

The following table details the movement in our outstanding shares of class A common stock, including restricted class A common stock and deferred stock units:

	Nine Months Ended September 30,
Common Stock Outstanding(1)	2021		2020
Beginning balance		147,086,722		135,263,728
Issuance of class A common stock(2)		10,001,429		10,842,295
Issuance of restricted class A common stock, net(3)		234,229		351,333
Issuance of deferred stock units		50,009		33,790
Ending balance		157,372,389		146,491,146

(1)	Includes 356,700 and 293,856 deferred stock units held by members of our board of directors as of September 30, 2021 and 2020, respectively.
(2)	Includes 1,429 and 1,599 shares issued under our dividend reinvestment program during the nine months ended September 30, 2021 and 2020, respectively.
(3)	The amounts are net of 29,580 and 249 shares of restricted class A common stock forfeited under our stock-based incentive plans during the nine months ended September 30, 2021 and 2020, respectively. See Note 14 for further discussion of our stock-based incentive plans.

Schedule of Dividend Activity

The following table details our dividend activity ($ in thousands, except per share data):   

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Dividends declared per share of common stock	$	0.62	$	0.62	$	1.86	$	1.86
Class A common stock dividends declared	$	97,350	$	90,642	$	279,659	$	265,205
Deferred stock unit dividends declared		202		174		591		502
Total dividends declared	$	97,552	$	90,816	$	280,250	$	265,707

Schedule of Basic and Diluted Earnings Per Share, or EPS, Based on Weighted-Average of Both Restricted and Unrestricted Class A Common Stock Outstanding

The following table sets forth the calculation of basic and diluted net income (loss) per share of class A common stock based on the weighted-average of both restricted and unrestricted class A common stock outstanding ($ in thousands, except per share data):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Net income(1)	$	83,757	$	89,860	$	295,254	$	54,054
Weighted-average shares outstanding, basic and diluted		149,214,819		146,484,651		147,971,737		140,157,620
Per share amount, basic and diluted	$	0.56	$	0.61	$	2.00	$	0.39

(1)   Represents net income attributable to Blackstone Mortgage Trust.

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Other Expenses (Tables)

9 Months Ended

Sep. 30, 2021

Other Income and Expenses [Abstract]

Schedule of General and Administrative Expenses

General and administrative expenses consisted of the following ($ in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Professional services(1)	$	1,969	$	1,715	$	5,831	$	5,130
Operating and other costs(1)		792		878		2,093		3,212
Subtotal		2,761		2,593		7,924		8,342
Non-cash compensation expenses
Restricted class A common stock earned		7,907		8,524		23,762		25,603
Director stock-based compensation		173		125		422		375
Subtotal		8,080		8,649		24,184		25,978
Total general and administrative expenses	$	10,841	$	11,242	$	32,108	$	34,320

(1)   During the three and nine months ended September 30, 2021, we recognized an aggregate $110,000 and $543,000, respectively, of expenses related to our Multifamily Joint Venture. During the three and nine months ended September 30, 2020, we recognized an aggregate $293,000 and $869,000, respectively, of expenses related to our Multifamily Joint Venture.

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Stock-Based Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2021

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share

The following table details the movement in our outstanding shares of restricted class A common stock and the weighted-average grant date fair value per share:

	Restricted Class A Common Stock			Weighted-Average Grant Date Fair Value Per Share
Balance as of December 31, 2020		1,627,890		$	33.14
Granted		263,809			26.16
Vested		(718,799	)		33.08
Forfeited		(29,580	)		31.52
Balance as of September 30, 2021		1,143,320		$	31.60

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Fair Values (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes our assets and liabilities measured at fair value on a recurring basis ($ in thousands):

	September 30, 2021								December 31, 2020
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets
Derivatives	$	—	$	35,858	$	—	$	35,858	$	—	$	522	$	—	$	522
Liabilities
Derivatives	$	—	$	355	$	—	$	355	$	—	$	58,915	$	—	$	58,915

Schedule of Details of Carrying Amount, Face Amount, and Fair Value of Financial Instruments

The following table details the book value, face amount, and fair value of the financial instruments described in Note 2 ($ in thousands):

	September 30, 2021						December 31, 2020
	Book		Face		Fair		Book		Face		Fair
	Value		Amount		Value		Value		Amount		Value
Financial assets
Cash and cash equivalents	$	211,180	$	211,180	$	211,180	$	289,970	$	289,970	$	289,970
Loans receivable, net		20,276,078		20,522,560		20,358,824		16,399,166		16,652,824		16,447,192
Debt securities held-to-maturity(1)		77,636		79,200		78,633		75,722		79,200		70,127
Financial liabilities
Secured debt, net		11,170,330		11,188,855		11,188,855		7,880,536		7,896,863		7,896,863
Securitized debt obligations, net		2,836,049		2,855,625		2,855,589		2,922,499		2,940,638		2,923,489
Asset-specific debt, net		320,895		328,068		328,068		391,269		399,699		399,699
Term loans, net		1,329,637		1,352,706		1,343,771		1,041,704		1,062,766		1,053,060
Convertible notes, net		618,985		622,500		633,845		616,389		622,500		621,568

(1)   Included in other assets on our consolidated balance sheets.

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Variable Interest Entities (Tables)

9 Months Ended

Sep. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Assets and Liabilities of Consolidated CLO and Single Asset Securitization VIE

The following table details the assets and liabilities of our consolidated CLOs and 2017 Single Asset Securitization VIEs ($ in thousands):    

	September 30, 2021			December 31, 2020
Assets:
Loans receivable	$	3,475,000		$	3,520,130
Current expected credit loss reserve		(4,044	)		(13,454	)
Loans receivable, net		3,470,956			3,506,676
Other assets		32,406			81,274
Total assets	$	3,503,362		$	3,587,950
Liabilities:
Securitized debt obligations, net	$	2,836,049		$	2,922,499
Other liabilities		1,631			2,104
Total liabilities	$	2,837,680		$	2,924,603

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

Schedule of Principal Contractual Obligations

Our contractual principal debt repayments as of September 30, 2021 were as follows ($ in thousands):

	Secured		Asset-Specific		Term		Convertible
Year	Debt(1)		Debt(1)		Loans(2)		Notes(3)		Total(4)
2021 (remainder of the year)	$	130,668	$	—	$	3,436	$	—	$	134,104
2022		228,030		—		13,738		402,500		644,268
2023		1,834,836		149,896		13,738		220,000		2,218,470
2024		3,937,001		—		13,738		—		3,950,739
2025		1,231,023		178,172		13,738		—		1,422,933
2026		3,725,205		—		1,294,318		—		5,019,523
Thereafter		102,092		—		—		—		102,092
Total obligation	$	11,188,855	$	328,068	$	1,352,706	$	622,500	$	13,492,129

(1) The allocation of repayments under our secured debt and asset-specific debt is based on the earlier of (i) the maturity date of each agreement, or (ii) the maximum maturity date of the collateral loans, assuming all extension options are exercised by the borrower.

(2) The Term Loans are partially amortizing, with an amount equal to 1.0% per annum of the principal balance due in quarterly installments. Refer to Note 8 for further details on our term loans.

(3) Reflects the outstanding principal balance of Convertible Notes, excluding any potential conversion premium. Refer to Note 9 for further details on our Convertible Notes.

(4) Total does not include $2.9 billion of consolidated securitized debt obligations, $997.6 million of non-consolidated senior interests, and $414.1 million of non-consolidated securitized debt obligations, as the satisfaction of these liabilities will not require cash outlays from us.

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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Sep. 30, 2021	Dec. 31, 2020	Apr. 30, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Joint venture capital contribution percentage				85.00%
Income accrual, description		Income accrual is generally suspended for loans at the earlier of the date at which payments become 90 days past due or when, in the opinion of our Manager, recovery of income and principal becomes doubtful.
Cash and cash equivalents, description		Cash and cash equivalents represent cash held in banks and liquid investments with original maturities of three months or less.
Borrower Escrows		$ 426.6	$ 384.6
SOFR [Member] | Credit Spread Option [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Credit spread adjustment rate		0.11%
Average compounded secured overnight financing rate		0.05%
USD LIBOR Rate [Member] | Credit Spread Option [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Average compounded secured overnight financing rate		0.08%
Sterling Overnight Interbank Average Rate [Member] | Credit Spread Option [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Daily compounded sterling overnight interbank average rate		0.05%
GBP LIBOR Rate [Member] | Credit Spread Option [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Daily compounded sterling overnight interbank average rate		0.08%
Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Increase in CECL reserve	$ 69.7
Level 3 [Member] | Fair Value, Nonrecurring [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans and lease receivable		$ 338.7
Level 3 [Member] | Minimum [Member] | Measurement Input, Cap Rate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capitalisation rate of loans receivable		4.25%
Level 3 [Member] | Maximum [Member] | Measurement Input, Cap Rate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Capitalisation rate of loans receivable		4.80%
ASU 2020-06 [Member] | January 1, 2022 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Adjustment to additional paid in capital other one		$ 2.4
Decrease in accumulated deficit		$ 2.0
Walker and Dunlop [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Joint venture capital contribution percentage				15.00%

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Summary of Significant Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 211,180	$ 289,970	$ 427,028
2021 FL4 CLO restricted cash	25,000	0	0
Total cash, cash equivalents, and restricted cash shown in our consolidated statements of cash flows	$ 236,180	$ 289,970	$ 427,028	$ 150,090

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Summary of Significant Accounting Policies - Schedule of Impact of this Adoption (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	$ 130,388	$ 128,945	$ 172,100	$ 173,549	$ 177,026	$ 178,050	$ 112,694		$ 0
Current expected credit loss reserve	280	122	889	1,723	2,033	4,119	5,122		0
Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								$ 13,942
Current expected credit loss reserve								445,000	445
Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	17,650
Current expected credit loss reserve	445
CECL reserve on unfunded loan commitments [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	5,203	4,037	11,021	10,031	12,057	15,002	22,536		0
CECL reserve on unfunded loan commitments [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	3,300							3,263
CECL reserve on unfunded loan commitments [Member] | Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	3,263
U.S. Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	20,926	17,673	44,534	42,995	50,642	61,404	64,861
U.S. Loans [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								8,955
U.S. Loans [Member] | Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	8,955
U.S. Loans [Member] | CECL reserve on unfunded loan commitments [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	3,420	2,854	7,169	6,953	9,179	12,836	19,793		0
U.S. Loans [Member] | CECL reserve on unfunded loan commitments [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								2,801
Non-U.S. Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	8,546	8,829	24,600	27,734	26,780	19,745	21,825
Non-U.S. Loans [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								3,631
Non-U.S. Loans [Member] | Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	3,631
Non-U.S. Loans [Member] | CECL reserve on unfunded loan commitments [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	1,783	1,140	3,772	2,994	2,810	2,078	2,672		0
Non-U.S. Loans [Member] | CECL reserve on unfunded loan commitments [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								453
Unique Loans [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	31,255	32,782	33,305	33,159	29,943	27,240	26,008		0
Unique Loans [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								1,356
Unique Loans [Member] | Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	1,356
Unique Loans [Member] | CECL reserve on unfunded loan commitments [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	0	$ 43	$ 80	$ 84	$ 68	$ 88	$ 71		$ 0
Unique Loans [Member] | CECL reserve on unfunded loan commitments [Member] | Impact of ASU 2016-13 Adoption [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve								$ 9
CECL reserve on loans [Member] | Impact of ASU 2016-13 Adoption [Member] | Adoption of ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Current expected credit loss reserve	$ 13,942

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Loans Receivable, Net - Overall Statistics for Loans Receivable Portfolio (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) SecurityLoan	Dec. 31, 2020 USD ($) SecurityLoan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	156	120
Principal balance	$ 20,522,560	$ 16,652,824
Net book value	20,276,078	16,399,166
Unfunded loan commitments	$ 20,406,466	$ 16,572,715
Loans Receivable [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	156	120
Principal balance	$ 20,522,560	$ 16,652,824
Net book value	20,276,078	16,399,166
Unfunded loan commitments	$ 20,406,466	$ 16,572,715
Weighted-average maximum maturity (years)	3 years 3 months 18 days	3 years 1 month 6 days
Loans Receivable [Member] | Unfunded Loan Commitment [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Unfunded loan commitments	$ 4,220,214	$ 3,160,084
Loans Receivable [Member] | LIBOR [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Weighted-average spread, rate	3.18%	3.18%
Weighted-average all-in yield, rate	3.51%	3.53%
Weighted-average spread, rate description	+ 3.18	+ 3.18
Weighted-average all-in yield, rate description	+ 3.51	+ 3.53

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Loans Receivable, Net - Overall Statistics for Loans Receivable Portfolio (Parenthetical) (Detail)	Sep. 30, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Portfolio	100.00%	100.00%
Prepayment Restrictions Including Yield Maintenance Lock Out Provisions [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Portfolio	44.00%	31.00%
Without Prepayment Restrictions [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Portfolio	56.00%	69.00%
Floating Rate Mortgage [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Portfolio	99.60%	99.40%
Fixed Rate Mortgage [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Portfolio	0.40%

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Loans Receivable, Net - Schedule Of Loan Receivable Portfolio Based On Floor Rate (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	$ 20,522,560	$ 16,652,824
Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	5,920,295
USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	14,602,265
Fixed rate
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	78,511
Fixed rate | Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	78,511
Fixed rate | USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	0
0.00% or no floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	8,178,545
0.00% or no floor | Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	4,912,695
0.00% or no floor | USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	3,265,850
0.01% to 0.24% floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	4,022,159
0.01% to 0.24% floor | Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	112,026
0.01% to 0.24% floor | USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	3,910,133
0.25% to 0.99% floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	1,635,301
0.25% to 0.99% floor | Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	271,616
0.25% to 0.99% floor | USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	1,363,685
1.00% or more floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	6,608,044
1.00% or more floor | Non-USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	545,447
1.00% or more floor | USD [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal balance	$ 6,062,597

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Loans Receivable, Net - Schedule Of Loan Receivable Portfolio Based On Floor Rate (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Mortgage loans on real estate accounted for under cost recovery method	$ 338.7
2018 Single Asset Securitization [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Principal amount outstanding of loans	493.3	$ 735.5
Single asset securitization principal amount subordinate position	$ 79.2
0.00% or no floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.00%
0.01% to 0.24% floor | Maximum [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.24%
0.01% to 0.24% floor | Minimum [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.01%
0.25% to 0.99% floor | Maximum [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.99%
0.25% to 0.99% floor | Minimum [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.25%
0.25% to 0.99% floor | Weighted Average [Member]
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	0.55%
Floor rate percentage on loan portfolio excluding zero point zero percentage	0.89%
1.00% or more floor
Disclosure Details Of Loan Receivable Portfolio Based On Floor Rate [Line Items]
Floor rate percentage on loan portfolio	1.00%

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Loans Receivable, Net - Activity Relating to Loans Receivable Portfolio (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loans receivable, Beginning Balance Principal Balance	$ 16,652,824
Loan fundings Principal Balance	7,449,491
Loan repayments and sales Principal balance	(3,351,118)
Unrealized (loss) gain on foreign currency translation Principal Balance	(228,637)
Deferred fees and other items Principal Balance	0
Amortization of fees and other items Principal Balance	0
Loans receivable, Ending Balance Principal Balance	20,522,560
Loans receivable, Beginning Balance Deferred Fees/ Other Items	(80,109)
Loans repayments Principal Balance	0
Loan repayments and sales proceeds deferred fees and other items	0
Unrealized gain (loss) on foreign currency translation Deferred Fees/ Other Items	1,157
Deferred fees and other items Deferred Fees/ Other Items	(79,971)
Amortization of fees and other items Deferred Fees/ Other Items	42,829
Loans receivable, Ending Balance Deferred Fees/ Other Items	(116,094)
Loans receivable, Beginning Balance Net Book Value	16,572,715
Loan fundings Net Book Value	7,449,491
Loan repayments and sales proceeds	(3,351,118)
Unrealized gain (loss) on foreign currency translation Net Book Value	(227,480)
Deferred fees and other items Net Book Value	(79,971)
Amortization of fees and other items Net Book Value	42,829
Loans receivable, Ending Balance Net Book Value	20,406,466
CECL reserve	(130,388)	$ (128,945)	$ (172,100)	$ (173,549)	$ (177,026)	$ (178,050)	$ (112,694)	$ 0
Net book value of restructured loan	$ 20,276,078			$ 16,399,166

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Loans Receivable, Net - Property Type and Geographic Distribution of Properties Securing Loans in Portfolio (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) SecurityLoan	Dec. 31, 2020 USD ($) SecurityLoan	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	156	120
Net Book Value	$ 20,406,466	$ 16,572,715
Total Loan Exposure	$ 21,520,167	$ 17,454,621
Percentage of Portfolio	100.00%	100.00%
CECL reserve	$ (130,388)	$ (173,549)	$ (128,945)	$ (172,100)	$ (177,026)	$ (178,050)	$ (112,694)	$ 0
Net book value of restructured loan	$ 20,276,078	$ 16,399,166
Office [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	65	58
Net Book Value	$ 10,239,432	$ 9,834,509
Total Loan Exposure	$ 10,940,778	$ 10,303,895
Percentage of Portfolio	50.00%	58.00%
Hospitality [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	18	14
Net Book Value	$ 2,777,827	$ 2,295,255
Total Loan Exposure	$ 2,879,888	$ 2,369,454
Percentage of Portfolio	13.00%	14.00%
Multifamily [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	56	31
Net Book Value	$ 4,465,938	$ 1,788,149
Total Loan Exposure	$ 4,494,065	$ 1,862,667
Percentage of Portfolio	21.00%	11.00%
Industrial [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	5	6
Net Book Value	$ 894,865	$ 673,912
Total Loan Exposure	$ 901,211	$ 675,344
Percentage of Portfolio	4.00%	4.00%
Life Sciences [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	2	1
Net Book Value	$ 407,595	$ 146,290
Total Loan Exposure	$ 413,209	$ 147,763
Percentage of Portfolio	2.00%	1.00%
Retail [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	6	4
Net Book Value	$ 770,045	$ 538,702
Total Loan Exposure	$ 773,491	$ 551,243
Percentage of Portfolio	4.00%	3.00%
Other [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	4	6
Net Book Value	$ 850,764	$ 1,295,898
Total Loan Exposure	$ 1,117,525	$ 1,544,255
Percentage of Portfolio	6.00%	9.00%
United States Northeast [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	26	24
Net Book Value	$ 4,463,202	$ 4,050,732
Total Loan Exposure	$ 4,491,804	$ 4,069,712
Percentage of Portfolio	21.00%	23.00%
United States West [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	32	27
Net Book Value	$ 3,548,756	$ 2,942,126
Total Loan Exposure	$ 4,126,256	$ 3,413,089
Percentage of Portfolio	19.00%	20.00%
United States Southeast [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	33	25
Net Book Value	$ 3,425,624	$ 2,624,701
Total Loan Exposure	$ 3,618,296	$ 2,707,080
Percentage of Portfolio	17.00%	16.00%
United States Midwest [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	10	8
Net Book Value	$ 1,201,663	$ 973,702
Total Loan Exposure	$ 1,205,877	$ 976,693
Percentage of Portfolio	6.00%	6.00%
United States Southwest [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	24	9
Net Book Value	$ 1,786,470	$ 597,100
Total Loan Exposure	$ 1,796,817	$ 598,813
Percentage of Portfolio	8.00%	3.00%
United States Northwest [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	2	1
Net Book Value	$ 94,670	$ 15,404
Total Loan Exposure	$ 94,963	$ 15,413
Percentage of Portfolio	0.00%	0.00%
United States [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	127	94
Net Book Value	$ 14,520,385	$ 11,203,765
Total Loan Exposure	$ 15,334,013	$ 11,780,800
Percentage of Portfolio	71.00%	68.00%
United Kingdom [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	14	13
Net Book Value	$ 1,754,872	$ 1,816,901
Total Loan Exposure	$ 1,999,180	$ 2,066,390
Percentage of Portfolio	9.00%	12.00%
Spain [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	4	2
Net Book Value	$ 1,448,355	$ 1,247,162
Total Loan Exposure	$ 1,455,967	$ 1,252,080
Percentage of Portfolio	7.00%	7.00%
Ireland [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	1	1
Net Book Value	$ 1,233,286	$ 1,309,443
Total Loan Exposure	$ 1,237,547	$ 1,317,846
Percentage of Portfolio	6.00%	8.00%
Sweden [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	1
Net Book Value	$ 564,277
Total Loan Exposure	$ 569,529
Percentage of Portfolio	3.00%
Australia [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	2	2
Net Book Value	$ 175,786	$ 259,126
Total Loan Exposure	$ 176,144	$ 259,788
Percentage of Portfolio	1.00%	1.00%
Canada [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	2	3
Net Book Value	$ 66,881	$ 82,185
Total Loan Exposure	$ 66,864	$ 82,262
Percentage of Portfolio	0.00%	0.00%
International [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	29	26
Net Book Value	$ 5,886,081	$ 5,368,950
Total Loan Exposure	$ 6,186,154	$ 5,673,821
Percentage of Portfolio	29.00%	32.00%
Other Europe [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	5	5
Net Book Value	$ 642,624	$ 654,133
Total Loan Exposure	$ 680,923	$ 695,455
Percentage of Portfolio	3.00%	4.00%

XML

Loans Receivable, Net - Property Type and Geographic Distribution of Properties Securing Loans in Portfolio (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total loan exposure including senior interests	$ 997.6	$ 801.8
2018 Single Asset Securitization [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Single asset securitization principal amount	$ 493.3	$ 735.5

XML

Loans Receivable, Net - Principal Balance and Net Book Value of Loans Receivable Based on Internal Risk Ratings (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) SecurityLoan	Dec. 31, 2020 USD ($) SecurityLoan	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	156	120
Net Book Value	$ 20,406,466	$ 16,572,715
Total Loan Exposure	21,520,167	17,454,621
CECL reserve	(130,388)	(173,549)	$ (128,945)	$ (172,100)	$ (177,026)	$ (178,050)	$ (112,694)	$ 0
Net book value of restructured loan	$ 20,276,078	$ 16,399,166
Risk Rating 1 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	8	8
Net Book Value	$ 931,330	$ 777,163
Total Loan Exposure	$ 931,831	$ 778,283
Risk Rating 2 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	27	17
Net Book Value	$ 4,800,884	$ 2,513,848
Total Loan Exposure	$ 4,836,029	$ 2,528,835
Risk Rating 3 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	110	79
Net Book Value	$ 12,060,623	$ 9,911,914
Total Loan Exposure	$ 13,129,870	$ 10,763,496
Risk Rating 4 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	9	14
Net Book Value	$ 2,276,394	$ 3,032,593
Total Loan Exposure	$ 2,283,701	$ 3,045,309
Risk Rating 5 [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of Loans | SecurityLoan	2	2
Net Book Value	$ 337,235	$ 337,197
Total Loan Exposure	$ 338,736	$ 338,698

XML

Loans Receivable, Net - Principal Balance and Net Book Value of Loans Receivable Based on Internal Risk Ratings (Parenthetical) (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Total loan exposure including senior interests	$ 997.6	$ 801.8
2018 Single Asset Securitization [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Single asset securitization principal amount	$ 493.3	$ 735.5

XML

Loans Receivable, Net - Additional Information (Detail) $ in Thousands		3 Months Ended						9 Months Ended
	Jul. 01, 2020 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Weighted-average risk rating on loan exposure		2.8						2.8		3.0
Loans held		$ 21,520,167						$ 21,520,167		$ 17,454,621
Net book value of restructured loan		20,276,078						20,276,078		16,399,166
CECL reserve		130,388	$ 128,945	$ 172,100	$ 177,026	$ 178,050	$ 112,694	130,388	$ 177,026	173,549		$ 0
(Decrease) Increase in CECL reserve		98,752	$ (43,155)	$ (1,449)	(1,024)	65,356	$ 1,443
Reduction In Loan Spread And Extension In Maturity Date [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Financing receivable troubled debt restructuring premodification recorded investment	$ 338,700
Financing receivable troubled debt restructuring premodification recorded investment income	$ 0
CECL Troubled Debt Restructuring Principal Amount Due Is 52.4 Million Dollars [Member] | Reduction In Loan Spread And Extension In Maturity Date [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Increase in CECL reserve						14,800
Financing receivable troubled debt restructuring premodification recorded investment								52,400
CECL Troubled Debt Restructuring Principal Amount Due Is 54.9 Million Dollars [Member] | Reduction In Loan Spread And Extension In Maturity Date [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Increase in CECL reserve						$ 54,900
Financing receivable troubled debt restructuring premodification recorded investment								286,300
COVID-19 pandemic [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Net book value of restructured loan		130,400			177,000			130,400	177,000
CECL reserve											$ 13,900
(Decrease) Increase in CECL reserve		(1,400)			$ (1,000)			(43,200)	$ 163,100
Multifamily [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loans held		4,494,065						4,494,065		1,862,667
Joint Venture [Member] | Multifamily [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Loans held		$ 817,900						$ 817,900		$ 484,800

XML

Loans Receivable, Net - Schedule Of Current Expected Credit Loss Reserve By Pool (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
Loans Receivable, Net
CECL reserve	$ 130,388	$ 128,945	$ 172,100	$ 177,026	$ 178,050	$ 112,694	$ 173,549		$ 0
Increase (decrease) in CECL reserve	98,752	(43,155)	(1,449)	(1,024)	65,356	1,443
U.S. Loans [Member]
Loans Receivable, Net
CECL reserve	20,926	17,673	44,534	50,642	61,404	64,861	42,995
Increase (decrease) in CECL reserve	55,906	(26,861)	1,539	(10,762)	(3,457)	3,253
Non-U.S. Loans [Member]
Loans Receivable, Net
CECL reserve	8,546	8,829	24,600	26,780	19,745	21,825	27,734
Increase (decrease) in CECL reserve	18,194	(15,771)	(3,134)	7,035	(2,080)	(283)
Unique Loans [Member]
Loans Receivable, Net
CECL reserve	31,255	32,782	33,305	29,943	27,240	26,008	33,159		0
Increase (decrease) in CECL reserve	24,652	(523)	146	2,703	1,232	(1,527)
Impaired Loans [Member]
Loans Receivable, Net
CECL reserve	69,661	69,661	69,661	69,661	69,661	0	$ 69,661		$ 0
Increase (decrease) in CECL reserve	$ 0	$ 0	$ 0	$ 0	$ 69,661	$ 0
Accounting Standards Update 2016-13 [Member]
Loans Receivable, Net
CECL reserve								$ 13,942
Accounting Standards Update 2016-13 [Member] | U.S. Loans [Member]
Loans Receivable, Net
CECL reserve								8,955
Accounting Standards Update 2016-13 [Member] | Non-U.S. Loans [Member]
Loans Receivable, Net
CECL reserve								3,631
Accounting Standards Update 2016-13 [Member] | Unique Loans [Member]
Loans Receivable, Net
CECL reserve								1,356
Accounting Standards Update 2016-13 [Member] | Impaired Loans [Member]
Loans Receivable, Net
CECL reserve								$ 0

XML

Loans Receivable, Net - Loans Receivable Based On Our Internal Risk Ratings, Separated By Year Of Origination (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans receivable	$ 20,406,466			$ 16,572,715
CECL reserve	(130,388)	$ (128,945)	$ (172,100)	(173,549)	$ (177,026)	$ (178,050)	$ (112,694)	$ 0
Loans receivable, net	20,276,078			16,399,166
Loans Receivable [Member]
Financing receivable, originated in current fiscal year	6,693,132			952,873
Financing receivable, originated in fiscal year before latest fiscal year	974,270							6,183,467
Financing receivable, originated two years before latest fiscal year	6,218,224								$ 6,243,324
Financing receivable, originated three years before latest fiscal year	4,682,365									$ 2,093,382
Financing receivable, originated four years before latest fiscal year	1,214,025										$ 543,356
Financing receivable, originated five or more years before latest fiscal year	624,450			556,313
Loans receivable	20,406,466			16,572,715
Loans receivable, net	20,276,078			16,399,166
U.S. Loans [Member]
Financing receivable, originated in current fiscal year	5,673,321			847,573
Financing receivable, originated in fiscal year before latest fiscal year	874,144							3,075,651
Financing receivable, originated two years before latest fiscal year	3,224,700								4,153,881
Financing receivable, originated three years before latest fiscal year	2,951,292									1,998,625
Financing receivable, originated four years before latest fiscal year	1,124,269										429,703
Financing receivable, originated five or more years before latest fiscal year	402,306			443,321
Loans receivable	14,250,032			10,948,754
CECL reserve								0
Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	1,019,811			105,300
Financing receivable, originated in fiscal year before latest fiscal year	100,126							2,782,719
Financing receivable, originated two years before latest fiscal year	2,672,368								615,533
Financing receivable, originated three years before latest fiscal year	393,573									94,757
Financing receivable, originated four years before latest fiscal year	89,756										113,653
Financing receivable, originated five or more years before latest fiscal year	110,768			0
Loans receivable	4,386,402			3,711,962
CECL reserve								0
Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							325,097
Financing receivable, originated two years before latest fiscal year	321,156								1,189,101
Financing receivable, originated three years before latest fiscal year	1,052,692									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	58,949			60,604
Loans receivable	1,432,797			1,574,802
CECL reserve	(31,255)	(32,782)	(33,305)	(33,159)	(29,943)	(27,240)	(26,008)	0
Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								284,809
Financing receivable, originated three years before latest fiscal year	284,808									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	52,427			52,388
Loans receivable	337,235			337,197
CECL reserve	(69,661)	$ (69,661)	$ (69,661)	(69,661)	$ (69,661)	$ (69,661)	$ 0	0
Risk Rating 1 [Member]
Loans receivable	931,330			777,163
Risk Rating 1 [Member] | Loans Receivable [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	43,745							231,796
Financing receivable, originated two years before latest fiscal year	731,641								389,695
Financing receivable, originated three years before latest fiscal year	0									138,663
Financing receivable, originated four years before latest fiscal year	155,944										17,009
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	931,330			777,163
Risk Rating 1 [Member] | U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	43,745							231,796
Financing receivable, originated two years before latest fiscal year	696,764								253,674
Financing receivable, originated three years before latest fiscal year	0									43,906
Financing receivable, originated four years before latest fiscal year	66,188										17,009
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	806,697			546,385
Risk Rating 1 [Member] | Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	34,877								136,021
Financing receivable, originated three years before latest fiscal year	0									94,757
Financing receivable, originated four years before latest fiscal year	89,756										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	124,633			230,778
Risk Rating 1 [Member] | Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 1 [Member] | Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 2 [Member]
Loans receivable	4,800,884			2,513,848
Risk Rating 2 [Member] | Loans Receivable [Member]
Financing receivable, originated in current fiscal year	1,258,391			0
Financing receivable, originated in fiscal year before latest fiscal year	100,126							282,017
Financing receivable, originated two years before latest fiscal year	1,970,668								1,172,168
Financing receivable, originated three years before latest fiscal year	887,935									757,138
Financing receivable, originated four years before latest fiscal year	391,740										79,848
Financing receivable, originated five or more years before latest fiscal year	192,024			222,677
Loans receivable	4,800,884			2,513,848
Risk Rating 2 [Member] | U.S. Loans [Member]
Financing receivable, originated in current fiscal year	694,114			0
Financing receivable, originated in fiscal year before latest fiscal year	0							282,017
Financing receivable, originated two years before latest fiscal year	586,976								1,172,168
Financing receivable, originated three years before latest fiscal year	887,935									757,138
Financing receivable, originated four years before latest fiscal year	391,740										79,848
Financing receivable, originated five or more years before latest fiscal year	81,256			222,677
Loans receivable	2,642,021			2,513,848
Risk Rating 2 [Member] | Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	564,277			0
Financing receivable, originated in fiscal year before latest fiscal year	100,126							0
Financing receivable, originated two years before latest fiscal year	1,383,692								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	110,768			0
Loans receivable	2,158,863			0
Risk Rating 2 [Member] | Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 2 [Member] | Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 3 [Member]
Loans receivable	12,060,623			9,911,914
Risk Rating 3 [Member] | Loans Receivable [Member]
Financing receivable, originated in current fiscal year	5,434,741			886,895
Financing receivable, originated in fiscal year before latest fiscal year	830,399							4,917,522
Financing receivable, originated two years before latest fiscal year	2,752,194								2,350,842
Financing receivable, originated three years before latest fiscal year	2,112,237									1,134,288
Financing receivable, originated four years before latest fiscal year	602,976										341,119
Financing receivable, originated five or more years before latest fiscal year	328,076			281,248
Loans receivable	12,060,623			9,911,914
Risk Rating 3 [Member] | U.S. Loans [Member]
Financing receivable, originated in current fiscal year	4,979,207			781,595
Financing receivable, originated in fiscal year before latest fiscal year	830,399							2,391,297
Financing receivable, originated two years before latest fiscal year	1,844,466								1,672,897
Financing receivable, originated three years before latest fiscal year	1,522,591									1,134,288
Financing receivable, originated four years before latest fiscal year	602,976										227,466
Financing receivable, originated five or more years before latest fiscal year	269,127			220,644
Loans receivable	10,048,766			6,428,187
Risk Rating 3 [Member] | Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	455,534			105,300
Financing receivable, originated in fiscal year before latest fiscal year	0							2,526,225
Financing receivable, originated two years before latest fiscal year	907,728								479,512
Financing receivable, originated three years before latest fiscal year	393,573									0
Financing receivable, originated four years before latest fiscal year	0										113,653
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	1,756,835			3,224,690
Risk Rating 3 [Member] | Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								198,433
Financing receivable, originated three years before latest fiscal year	196,073									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	58,949			60,604
Loans receivable	255,022			259,037
Risk Rating 3 [Member] | Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 4 [Member]
Loans receivable	2,276,394			3,032,593
Risk Rating 4 [Member] | Loans Receivable [Member]
Financing receivable, originated in current fiscal year	0			65,978
Financing receivable, originated in fiscal year before latest fiscal year	0							752,132
Financing receivable, originated two years before latest fiscal year	763,721								2,045,810
Financing receivable, originated three years before latest fiscal year	1,397,385									63,293
Financing receivable, originated four years before latest fiscal year	63,365										105,380
Financing receivable, originated five or more years before latest fiscal year	51,923			0
Loans receivable	2,276,394			3,032,593
Risk Rating 4 [Member] | U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			65,978
Financing receivable, originated in fiscal year before latest fiscal year	0							170,541
Financing receivable, originated two years before latest fiscal year	96,494								1,055,142
Financing receivable, originated three years before latest fiscal year	540,766									63,293
Financing receivable, originated four years before latest fiscal year	63,365										105,380
Financing receivable, originated five or more years before latest fiscal year	51,923			0
Loans receivable	752,548			1,460,334
Risk Rating 4 [Member] | Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							256,494
Financing receivable, originated two years before latest fiscal year	346,071								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	346,071			256,494
Risk Rating 4 [Member] | Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							325,097
Financing receivable, originated two years before latest fiscal year	321,156								990,668
Financing receivable, originated three years before latest fiscal year	856,619									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	1,177,775			1,315,765
Risk Rating 4 [Member] | Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 5 [Member] | Loans Receivable [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								284,809
Financing receivable, originated three years before latest fiscal year	284,808									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	52,427			52,388
Loans receivable	337,235			337,197
Risk Rating 5 [Member] | U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 5 [Member] | Non-U.S. Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 5 [Member] | Unique Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							0
Financing receivable, originated two years before latest fiscal year	0								0
Financing receivable, originated three years before latest fiscal year	0									0
Financing receivable, originated four years before latest fiscal year	0										0
Financing receivable, originated five or more years before latest fiscal year	0			0
Loans receivable	0			0
Risk Rating 5 [Member] | Impaired Loans [Member]
Financing receivable, originated in current fiscal year	0			0
Financing receivable, originated in fiscal year before latest fiscal year	0							$ 0
Financing receivable, originated two years before latest fiscal year	0								$ 284,809
Financing receivable, originated three years before latest fiscal year	284,808									$ 0
Financing receivable, originated four years before latest fiscal year	0										$ 0
Financing receivable, originated five or more years before latest fiscal year	52,427			52,388
Loans receivable	$ 337,235			$ 337,197

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Loans Receivable, Net - Loans Receivable Based On Our Internal Risk Ratings, Separated By Year Of Origination (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity	$ 77,636	$ 75,722
2018 Single Asset Securitization [Member]
Debt Securities, Held-to-maturity	$ 77,600	$ 75,700

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Other Assets and Liabilities - Summary of Components of Other Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Debt Securities, Held-to-maturity, Past Due [Line Items]
Accrued interest receivable	$ 78,689			$ 66,757
Debt securities held-to-maturity	77,916			77,445
CECL reserve	(280)	$ (122)	$ (889)	(1,723)	$ (2,033)	$ (4,119)	$ (5,122)	$ 0
Debt securities held-to-maturity, net	77,636			75,722
Derivative assets	35,858			522
2021 FL4 CLO restricted cash	25,000			0	$ 0
Loan portfolio payments held by servicer	766			73,224
Prepaid expenses	43			973
Collateral deposited under derivative agreements	0			51,050
Prepaid taxes	0			376
Other	622			1,195
Total	$ 218,614			$ 269,819

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Other Assets and Liabilities - Summary of Components of Other Assets (Parenthetical) (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Schedule Of Other Assets [Line Items]
Percentage of yield in subordinate risk retention interest	10.00%
Restricted cash	$ 25,000	$ 0	$ 0
2021 FL4 CLO [Member]
Schedule Of Other Assets [Line Items]
Restricted cash	25,000
2018 Single Asset Securitization [Member]
Schedule Of Other Assets [Line Items]
Single asset securitization principal amount	$ 493,300	$ 735,500
Single asset securitization maximum maturity date	Jun. 09, 2025

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Other Assets and Liabilities - Summary Of Current Expected Credit Loss Reserve By Pool (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Current Expected Credit Loss Reserve	$ 122	$ 889	$ 1,723	$ 4,119	$ 5,122	$ 0	$ 1,723	$ 0
Increase (Decrease) in current expected credit loss reserve	158	(767)	(834)	(2,086)	(1,003)	4,677
Current Expected Credit Loss Reserve	$ 280	$ 122	$ 889	$ 2,033	$ 4,119	5,122	$ 280	2,033
Accounting Standards Update 2016-13 [Member]
Current Expected Credit Loss Reserve						$ 445		$ 445

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Other Assets and Liabilities - Additional Information (Detail) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021 USD ($) Loans	Jun. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Sep. 30, 2021 USD ($) Loans	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
CECL reserve	$ 130,388	$ 128,945	$ 172,100	$ 177,026	$ 178,050	$ 112,694	$ 130,388	$ 177,026	$ 173,549		$ 0
Increase (Decrease) in current expected credit loss reserve	158	(767)	(834)	(2,086)	(1,003)	4,677
Current expected credit loss reserve	$ 280	122	889	2,033	4,119	5,122	$ 280	2,033	1,723		0
Number of loans receivable | Loans	108						108
Credit Loss Reserve [Member]
CECL reserve	$ 280,000			2,000			$ 280,000	2,000
Increase (Decrease) in current expected credit loss reserve	(158,000)			(2,100)			(1,400)	1,600
Unfunded Loan Commitments [Member]
CECL reserve	5,203	$ 4,037	$ 11,021	12,057	$ 15,002	$ 22,536	5,203	12,057	$ 10,031		0
Increase (Decrease) in current expected credit loss reserve	$ (1,200)			$ (2,900)			$ (4,800)	8,800
Number of loans receivable | Loans	108						108
Unfunded loan commitments	$ 4,200,000						$ 4,200,000
Accounting Standards Update 2016-13 [Member]
CECL reserve										$ 13,942
Current expected credit loss reserve										445,000	$ 445
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitments [Member]
CECL reserve	$ 3,300						3,300			$ 3,263
Increase (Decrease) in current expected credit loss reserve							$ 5,200	$ 12,100

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Other Assets and Liabilities - Summary of Components of Other Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Accrued dividends payable	$ 97,350			$ 91,004
Accrued interest payable	25,772			20,548
Accrued management and incentive fees payable	19,342			19,158
Accounts payable and other liabilities	11,080			2,671
Current expected credit loss reserve for unfunded loan commitments	130,388	$ 128,945	$ 172,100	173,549	$ 177,026	$ 178,050	$ 112,694	$ 0
Derivative liabilities	355			58,915
Secured debt repayments pending servicer remittance	322			0
Total	159,424			202,327
Unfunded Loan Commitments [Member]
Current expected credit loss reserve for unfunded loan commitments	$ 5,203	$ 4,037	$ 11,021	$ 10,031	$ 12,057	$ 15,002	$ 22,536	$ 0

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Other Assets and Liabilities - Summary of Unfunded Loan Commitment (Detail) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
CECL reserve	$ 130,388	$ 128,945	$ 172,100	$ 177,026	$ 178,050	$ 112,694	$ 173,549		$ 0
(Decrease) Increase in CECL reserve	98,752	(43,155)	(1,449)	(1,024)	65,356	1,443
U.S. Loans [Member]
CECL reserve	20,926	17,673	44,534	50,642	61,404	64,861	42,995
(Decrease) Increase in CECL reserve	55,906	(26,861)	1,539	(10,762)	(3,457)	3,253
Non-U.S. Loans [Member]
CECL reserve	8,546	8,829	24,600	26,780	19,745	21,825	27,734
(Decrease) Increase in CECL reserve	18,194	(15,771)	(3,134)	7,035	(2,080)	(283)
Unfunded Loan Commitment [Member]
CECL reserve	5,203	4,037	11,021	12,057	15,002	22,536	10,031		0
(Decrease) Increase in CECL reserve	1,166	(6,984)	990	(2,945)	(7,534)	19,273
Unfunded Loan Commitment [Member] | U.S. Loans [Member]
CECL reserve	3,420	2,854	7,169	9,179	12,836	19,793	6,953		0
(Decrease) Increase in CECL reserve	566	(4,315)	216	(3,657)	(6,957)	16,992
Unfunded Loan Commitment [Member] | Non-U.S. Loans [Member]
CECL reserve	1,783	1,140	3,772	2,810	2,078	2,672	2,994		0
(Decrease) Increase in CECL reserve	643	(2,632)	778	732	(594)	2,219
Accounting Standards Update 2016-13 [Member]
CECL reserve								$ 13,942
Accounting Standards Update 2016-13 [Member] | U.S. Loans [Member]
CECL reserve								8,955
Accounting Standards Update 2016-13 [Member] | Non-U.S. Loans [Member]
CECL reserve								3,631
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
CECL reserve	3,300							3,263
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member] | U.S. Loans [Member]
CECL reserve								2,801
Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member] | Non-U.S. Loans [Member]
CECL reserve								453
Unique Loans [Member]
CECL reserve	31,255	32,782	33,305	29,943	27,240	26,008	33,159		0
(Decrease) Increase in CECL reserve	24,652	(523)	146	2,703	1,232	(1,527)
Unique Loans [Member] | Unfunded Loan Commitment [Member]
CECL reserve	0	43	80	68	88	71	84		0
(Decrease) Increase in CECL reserve	(43)	(37)	(4)	(20)	17	62
Unique Loans [Member] | Accounting Standards Update 2016-13 [Member]
CECL reserve								1,356
Unique Loans [Member] | Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
CECL reserve								9
Impaired Loans [Member]
CECL reserve	69,661	69,661	69,661	69,661	69,661	0	69,661		0
(Decrease) Increase in CECL reserve	0	0	0	0	69,661	0
Impaired Loans [Member] | Unfunded Loan Commitment [Member]
CECL reserve	0	0	0	0	0	0	$ 0		$ 0
(Decrease) Increase in CECL reserve	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Impaired Loans [Member] | Accounting Standards Update 2016-13 [Member]
CECL reserve								0
Impaired Loans [Member] | Accounting Standards Update 2016-13 [Member] | Unfunded Loan Commitment [Member]
CECL reserve								$ 0

XML

Secured Debt, Net - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Debt Instrument [Line Items]
Interest expense	$ 82,690,000	$ 78,978,000	$ 243,413,000		$ 268,070,000
Covenants, minimum tangible net worth	$ 3,200,000,000		$ 3,200,000,000
Covenants, percentage of tangible assets on cash proceeds from equity issuances			75.00%
Covenants, percentage of recourse indebtedness	5.00%		5.00%
Maximum [Member]
Debt Instrument [Line Items]
Covenants, indebtedness to total assets, in percent	83.33%		83.33%
Minimum [Member]
Debt Instrument [Line Items]
Covenants, EBITDA to fixed charges, in percent			1.40%
Covenants, minimum cash liquidity amount	$ 10,000,000.0		$ 10,000,000.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Interest expense			925,000	$ 1,100,000
Amortization of deferred fees and expenses			262,000	411,000
Revolving Credit Facility [Member] | Acquisition Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity	146,300,000		146,300,000
Revolving Credit Facility [Member] | Barclays [Member]
Debt Instrument [Line Items]
Maximum Facility Size	250,000,000.0		250,000,000.0
Credit Facilities [Member]
Debt Instrument [Line Items]
Collateral Assets	15,258,991,000		15,258,991,000	$ 12,040,907,000
Line of credit facility, remaining borrowing capacity	306,200,000,000		306,200,000,000
Credit Facilities Six [Member]
Debt Instrument [Line Items]
Potential	2,800,000,000		2,800,000,000
Collateral Assets	3,500,000,000		3,500,000,000
Credit Facilities Eight [Member] | One of the Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Additional credit capacity	150,000,000.0
Credit Facilities Eight [Member] | Four of the Eight Secured Credit Facilities [Member]
Debt Instrument [Line Items]
Maximum Facility Size	$ 2,300,000,000		$ 2,300,000,000

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Secured Debt, Net - Schedule of Secured Debt Agreements (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Secured debt agreements borrowings outstanding	$ 11,188,855	$ 7,896,863
Deferred financing costs	(18,525)	(16,327)
Net book value of secured debt	11,170,330	7,880,536
Secured Debt [Member]
Debt Instrument [Line Items]
Secured debt agreements borrowings outstanding	11,188,855	7,896,863
Acquisition Facility [Member]
Debt Instrument [Line Items]
Secured debt repurchase agreement acquisition facility face amount	$ 0	$ 0

XML

Secured Debt, Net - Schedule of Secured Credit Facilities (Detail) - Secured Debt [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($) Countries
Schedule Of Secured Credit Facilities [Line Items]
Lenders | Countries	12
Borrowings | $	$ 11,188,855
Wtd Avg. Maturity	Feb. 17, 2025
Loan Count | Countries	141
Collateral | $	$ 15,258,991
Wtd Avg. Maturity	Feb. 10, 2025
Recourse Limitation Wtd. Avg.	32.00%
Minimum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	25.00%
Maximum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	100.00%
USD [Member]
Schedule Of Secured Credit Facilities [Line Items]
Lenders | Countries	12
Borrowings | $	$ 7,022,125
Wtd Avg. Maturity	May 05, 2025
Loan Count | Countries	114
Collateral | $	$ 9,557,168
Wtd Avg. Maturity	May 01, 2025
Recourse Limitation Wtd. Avg.	29.00%
USD [Member] | Minimum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	25.00%
USD [Member] | Maximum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	100.00%
EUR [Member]
Schedule Of Secured Credit Facilities [Line Items]
Lenders | Countries	6
Borrowings | $	$ 2,369,013
Wtd Avg. Maturity	Jul. 26, 2024
Loan Count | Countries	10
Collateral | $	$ 3,150,165
Wtd Avg. Maturity	Jul. 04, 2024
Recourse Limitation Wtd. Avg.	48.00%
EUR [Member] | Minimum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	25.00%
EUR [Member] | Maximum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	100.00%
GBP [Member]
Schedule Of Secured Credit Facilities [Line Items]
Lenders | Countries	6
Borrowings | $	$ 1,163,414
Wtd Avg. Maturity	Oct. 22, 2024
Loan Count | Countries	12
Collateral | $	$ 1,739,121
Wtd Avg. Maturity	Nov. 09, 2024
Recourse Limitation Wtd. Avg.	26.00%
GBP [Member] | Minimum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	25.00%
GBP [Member] | Maximum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	50.00%
Other Currencies [Member]
Schedule Of Secured Credit Facilities [Line Items]
Lenders | Countries	4
Borrowings | $	$ 634,303
Wtd Avg. Maturity	Jun. 17, 2025
Loan Count | Countries	5
Collateral | $	$ 812,537
Wtd Avg. Maturity	May 28, 2025
Recourse Limitation Wtd. Avg.	27.00%
Other Currencies [Member] | Minimum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	25.00%
Other Currencies [Member] | Maximum [Member]
Schedule Of Secured Credit Facilities [Line Items]
Recourse Limitation Range	100.00%

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Secured Debt, Net - Schedule of All in Cost of Secured Credit Facilities (Detail) - Credit Facilities [Member] - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 5,279,550	$ 898,516
Total Borrowings	$ 11,188,855	$ 7,896,863
Wtd. Avg. All-in Cost	1.77%	1.83%
Collateral	$ 15,258,991	$ 12,040,907
Wtd. Avg. All-in Yield	3.41%	3.40%
Net Interest Margin	1.64%	1.57%
1.50% or less [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 3,065,115	$ 376,085
Total Borrowings	$ 6,288,807	$ 4,192,280
Wtd. Avg. All-in Cost	1.54%	1.59%
Collateral	$ 8,176,251	$ 6,338,626
Wtd. Avg. All-in Yield	3.09%	3.09%
Net Interest Margin	1.55%	1.50%
1.51% to + 1.75% [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 1,268,796	$ 172,447
Total Borrowings	$ 2,780,867	$ 1,945,692
Wtd. Avg. All-in Cost	1.88%	1.95%
Collateral	$ 3,851,597	$ 2,975,581
Wtd. Avg. All-in Yield	3.40%	3.43%
Net Interest Margin	1.52%	1.48%
1.76% to + 2.00% [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 479,767	$ 215,056
Total Borrowings	$ 897,258	$ 926,666
Wtd. Avg. All-in Cost	2.08%	2.06%
Collateral	$ 1,253,906	$ 1,212,546
Wtd. Avg. All-in Yield	3.95%	3.83%
Net Interest Margin	1.87%	1.77%
2.01% or more [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
New Financings	$ 465,872	$ 134,928
Total Borrowings	$ 1,221,923	$ 832,225
Wtd. Avg. All-in Cost	2.42%	2.49%
Collateral	$ 1,977,237	$ 1,514,154
Wtd. Avg. All-in Yield	4.42%	4.34%
Net Interest Margin	2.00%	1.85%

XML

Secured Debt, Net - Schedule of All in Cost of Secured Credit Facilities (Parenthetical) (Detail) - Credit Facilities [Member]	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
USD LIBOR Rate [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	1.50%	1.50%
GBP LIBOR [Member] | Maximum [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	1.75%	1.75%
GBP LIBOR [Member] | Minimum [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	1.51%	1.51%
Sterling Overnight Interbank Average Rate [Member] | Maximum [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	2.00%	2.00%
Sterling Overnight Interbank Average Rate [Member] | Minimum [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	1.76%	1.76%
Sek [Member]
Schedule Of All In Cost Of Secured Credit Facilities [Line Items]
Basis spread on debt obligation, in percent	2.01%	2.01%

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Securitized Debt Obligations, Net - Schedule of Information on Securitized Debt Obligations (Detail) $ in Thousands		9 Months Ended		12 Months Ended
		Sep. 30, 2021 USD ($) Loans		Dec. 31, 2020 USD ($) Loans
Financing Provided [Member]
Debt Instrument [Line Items]
Count | Loans		3	[1]	4	[2]
Principal Balance		$ 2,855,625	[1]	$ 2,940,638	[2]
Book Value		$ 2,836,049	[1]	$ 2,922,499	[2]
Financing Provided [Member] | 2021 FL4 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		1
Principal Balance		$ 803,750
Book Value		$ 796,864
Financing Provided [Member] | 2020 FL3 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		1	[3]	1
Principal Balance		$ 808,750	[3]	$ 808,750
Book Value		$ 803,378	[3]	$ 800,993
Financing Provided [Member] | 2020 FL2 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		1	[3]	1
Principal Balance		$ 1,243,125	[3]	$ 1,243,125
Book Value		$ 1,235,807	[3]	$ 1,233,464
Financing Provided [Member] | 2017 FL1 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans				1
Principal Balance				$ 483,834
Book Value				$ 483,113
Financing Provided [Member] | Single Asset Securitization [Member]
Debt Instrument [Line Items]
Count | Loans				1
Principal Balance				$ 404,929
Book Value				$ 404,929
Collateral Assets [Member]
Debt Instrument [Line Items]
Count | Loans		80		72
Principal Balance		$ 3,500,000		$ 3,785,528
Book Value		$ 3,500,000		$ 3,785,100
Collateral Assets [Member] | 2021 FL4 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		35
Principal Balance		$ 1,000,000
Book Value		$ 1,000,000
Collateral Assets [Member] | 2020 FL3 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		21		25
Principal Balance		$ 1,000,000		$ 1,000,000
Book Value		$ 1,000,000		$ 1,000,000
Collateral Assets [Member] | 2020 FL2 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans		24		31
Principal Balance		$ 1,500,000		$ 1,500,000
Book Value		$ 1,500,000		$ 1,500,000
Collateral Assets [Member] | 2017 FL1 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Count | Loans				15
Principal Balance				$ 666,334
Book Value				$ 666,334
Collateral Assets [Member] | Single Asset Securitization [Member]
Debt Instrument [Line Items]
Count | Loans	[4]			1
Principal Balance	[4]			$ 619,194
Book Value	[4]			$ 618,766
LIBOR [Member] | Financing Provided [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	1.69%	[1],[3]	1.70%	[2],[6]
LIBOR [Member] | Financing Provided [Member] | 2021 FL4 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[3],[5]	1.65%
Term	[7]	2038-05
LIBOR [Member] | Financing Provided [Member] | 2020 FL3 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	2.10%	[3]	2.08%	[6]
Term	[7]			2037-11
LIBOR [Member] | Financing Provided [Member] | 2020 FL2 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	1.45%	[3]	1.44%	[6]
Term	[7]			2038-02
LIBOR [Member] | Financing Provided [Member] | 2017 FL1 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5],[6]			1.83%
Term	[7]			2035-06
LIBOR [Member] | Financing Provided [Member] | 2020 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5],[6]			1.63%
LIBOR [Member] | Financing Provided [Member] | Single Asset Securitization [Member]
Debt Instrument [Line Items]
Term	[7]			2033-06
LIBOR [Member] | Collateral Assets [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	3.17%	[3]	3.25%	[6]
LIBOR [Member] | Collateral Assets [Member] | 2021 FL4 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[3],[5]	3.41%
Term	[7]	2024-07
LIBOR [Member] | Collateral Assets [Member] | 2020 FL3 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	3.02%	[3]	3.09%	[6]
Term	[7]	2024-04		2024-02
LIBOR [Member] | Collateral Assets [Member] | 2020 FL2 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5]	3.10%	[3]	3.17%	[6]
Term	[7]	2024-03		2024-01
LIBOR [Member] | Collateral Assets [Member] | 2017 FL1 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[5],[6]			3.39%
Term	[7]			2023-01
LIBOR [Member] | Collateral Assets [Member] | 2020 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Wtd. Avg. Yield/Cost	[4],[5],[6]			3.57%
LIBOR [Member] | Collateral Assets [Member] | Single Asset Securitization [Member]
Debt Instrument [Line Items]
Term	[4],[7]			2023-06
SOFR [Member] | Financing Provided [Member] | 2020 FL3 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Term	[3],[7]	2037-11
SOFR [Member] | Financing Provided [Member] | 2020 FL2 Collateralized Loan Obligation [Member]
Debt Instrument [Line Items]
Term	[3],[7]	2038-02

[1] During the three and nine months ended September 30, 2021, we recorded $10.7 million and $35.2 million, respectively, of interest expense related to our securitized debt obligations.

[2] During the three and nine months ended September 30, 2020, we recorded $9.1 million and $31.8 million, respectively, of interest expense related to our securitized debt obligations.

[3] The weighted-average all-in yield and cost are expressed as a spread over the relevant floating benchmark rates, which include USD LIBOR and SOFR, as applicable to each securitized debt obligation. As of September 30, 2021, the floating benchmark rate for the financing provided on the 2020 FL3 and 2020 FL2 CLOs is the 30-day average compounded SOFR, plus a credit spread adjustment of 0.11%. As of September 30, 2021, the 30-day average compounded SOFR was 0.05% and one-month USD LIBOR was 0.08%.

[4] The collateral assets for the 2017 Single Asset Securitization include the total loan amount, of which we securitized $500.0 million.

[5] In addition to cash coupon, all-in yield includes the amortization of deferred origination and extension fees, loan origination costs, purchase discounts, and accrual of exit fees.

[6] The weighted-average all-in yield and cost are expressed as a spread over USD LIBOR.

[7] Loan term represents weighted-average final maturity, assuming all extension options are exercised by the borrower. Repayments of securitized debt obligations are tied to timing of the related collateral loan asset repayments. The term of these obligations represents the rated final distribution date of the securitizations.

XML

Securitized Debt Obligations, Net - Schedule of Information on Securitized Debt Obligations (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Debt Instrument [Line Items]
Interest expense on securitized debt obligations	$ 10.7	$ 9.1	$ 35.2	$ 31.8
Credit spread adjustment	0.11%		0.11%
LIBOR [Member]
Debt Instrument [Line Items]
One-month USD LIBOR	0.08%		0.08%
SOFR [Member]
Debt Instrument [Line Items]
30-day average compounded SOFR	0.05%		0.05%
Collateral Assets [Member] | Single Asset Securitization [Member]
Debt Instrument [Line Items]
Total loan amount, securitized					$ 500.0

XML

Asset-Specific Debt, Net - Summary of Asset-Specific Financings (Detail) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($) SecurityLoan	Dec. 31, 2020 USD ($) SecurityLoan
Participating Mortgage Loans [Line Items]
Financing provided, Principal Balance	$ 11,188,855	$ 7,896,863
Asset Specific Financings [Member]
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	3	4
Financing provided, Principal Balance	$ 328,068	$ 399,699
Financing provided	2024-12	2023-10
Financing provided, Book Value	$ 320,895	$ 391,269
LIBOR [Member] | Asset Specific Financings [Member]
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	3.13%	3.48%
Collateral Assets [Member]
Participating Mortgage Loans [Line Items]
Count | SecurityLoan	3	4
Collateral assets, Book Value	$ 424,650	$ 499,085
Financing provided	2024-12	2023-10
Collateral assets, Principal Balance	$ 436,562	$ 512,794
Collateral Assets [Member] | LIBOR [Member]
Participating Mortgage Loans [Line Items]
Weighted Average Yield/Cost Rate	4.34%	4.65%

XML

Term Loans, Net - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Secured term loan percentage of partially amortizing	1.00%
Secured term loan covenant description	The guarantee under our Term Loans contains the financial covenant that our indebtedness shall not exceed 83.33% of our total assets.
B-1 Term Loan
Secured term loan percentage of partially amortizing	1.00%
Discount upon issuance of Secured term loan	$ 3.1
Secured term loan transaction expenses	12.6
Secured term loan facility face value	$ 200.0
B-1 Term Loan | LIBOR [Member]
Basis spread on debt obligation, in percent	2.75%
B-2 Term Loan
Secured term loan percentage of partially amortizing	1.00%
Discount upon issuance of Secured term loan	$ 9.6
Secured term loan transaction expenses	5.4
Secured term loan facility face value	$ 100.0
Basis spread on debt obligation, in percent	0.50%
B-2 Term Loan | LIBOR [Member]
Basis spread on debt obligation, in percent	2.50%

XML

Term Loans, Net - Schedule of Debt (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
B-1 Term Loan
Face Value	$ 932,256
Interest rate	2.25
All-in Cost	2.53
Maturity	Apr. 23, 2026
B-2 Term Loan
Face Value	$ 420,450
Interest rate	2.75
All-in Cost	3.42
Maturity	Apr. 23, 2026

XML

Term Loans, Net - Schedule of Debt (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2021
B-2 Term Loan
Debt Instrument [Line Items]
Basis spread on debt obligation, in percent	0.50%

XML

Term Loans, Net - Schedule of Net Book Value of Our Term Loans on Our Consolidated Balance Sheets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Deferred financing costs	$ (18,525)	$ (16,327)
Term Loan
Face value	1,352,706	1,062,766
Unamortized discount	(9,748)	(9,807)
Deferred financing costs	(13,321)	(11,255)
Net book value	$ 1,329,637	$ 1,041,704

XML

Convertible Notes, Net - Summary of Outstanding Convertible Senior Notes (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
4.38% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible Note Issuance	2017-05
Face Value	$ 402,500
Interest Rate	4.38%
All-in Cost	4.85%
Conversion Rate	28.0324
Maturity	May 05, 2022
4.75% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Convertible Note Issuance	2018-03
Face Value	$ 220,000
Interest Rate	4.75%
All-in Cost	5.33%
Conversion Rate	27.6052
Maturity	Mar. 15, 2023

XML

Convertible Notes, Net - Summary of Outstanding Convertible Senior Notes (Parenthetical) (Detail)	9 Months Ended
	Sep. 30, 2021 USD ($) $ / shares
Debt Instrument [Line Items]
Convertible Notes, debt conversion, principal amount | $	$ 1,000
4.38% Convertible Senior Notes [Member] | Class A Common Stock [Member]
Debt Instrument [Line Items]
Convertible Notes, debt conversion, principal amount | $	$ 1,000
Debt instrument, conversion price	$ 0
4.75% Convertible Senior Notes Issued In March 2018 [Member] | Class A Common Stock [Member]
Debt Instrument [Line Items]
Debt instrument, conversion price	35.67
Debt instrument, conversion price	0
4.38% Convertible Senior Notes Issued in May 2017 [Member] | Class A Common Stock [Member]
Debt Instrument [Line Items]
Debt instrument, conversion price	36.23
Debt instrument, conversion price	$ 0

XML

Convertible Notes, Net - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Mar. 31, 2018	May 31, 2017
Debt Instrument [Line Items]
Accrued interest payable	$ 25,772,000	$ 20,548,000
5.25% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Description of Convertible Notes conversion	The Convertible Notes are convertible at the holders’ option into shares of our class A common stock, only under specific circumstances, prior to the close of business on January 31, 2022 and December 14, 2022 for the May 2017 and March 2018 convertible notes, respectively, at the applicable conversion rate in effect on the conversion date.
Discount upon issuance of Convertible Notes			$ 1,500,000
Debt issuance costs			$ 5,200,000
Convertible Notes, assumed effective interest rate			5.25%
Convertible Senior Notes, Interest rate including amortization of discount upon issuance			5.49%
Accrued interest payable	$ 7,800,000	$ 6,000,000.0
4.38% Convertible Senior Notes [Member]
Debt Instrument [Line Items]
Discount upon issuance of Convertible Notes				$ 979,000
Debt issuance costs				$ 8,400,000
Convertible Notes, assumed effective interest rate				4.57%
Convertible Senior Notes, Interest rate including amortization of discount upon issuance				4.91%

XML

Convertible Notes, Net - Summary of Details of Net Book Value of Convertible Note (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Deferred financing costs	$ (18,525)	$ (16,327)
Net book value	618,985	616,389
Convertible Senior Note [Member]
Debt Instrument [Line Items]
Face Value	622,500	622,500
Unamortized discount	(3,301)	(5,715)
Deferred financing costs	(214)	(396)
Net book value	$ 618,985	$ 616,389

XML

Convertible Notes, Net - Summary of Details about Interest Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Discount and issuance cost amortization			$ 29,698	$ 28,122
Convertible Senior Note [Member]
Debt Instrument [Line Items]
Cash coupon	$ 7,015	$ 7,015	21,045	21,045
Discount and issuance cost amortization	873	831	2,595	2,470
Total interest expense	$ 7,888	$ 7,846	$ 23,640	$ 23,515

XML

Derivative Financial Instruments - Summary of Outstanding Interest Rate Derivatives Designated as Cash Flow Hedges of Interest Rate Risk (Detail) - Cash Flow Hedges [Member] - Designated as Hedging Instrument [Member] - Interest Rate Caps [Member] - CAD [Member] - CDOR [Member] $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021 CAD ($) DerivativeInstrument	Dec. 31, 2020 CAD ($) DerivativeInstrument
Derivative [Line Items]
Number of Instruments | DerivativeInstrument	1	2
Notional Amount | $	$ 21,020	$ 38,293
Strike	1.00%	1.00%
Wtd. Avg. Maturity (Years)	2 months 12 days	9 months 18 days

XML

Derivative Financial Instruments - Additional Information (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of collateral posted for the net assets/liability positions	$ 0	$ 51,050,000
Interest Rate Swaps/Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Reclassification from accumulated other comprehensive income (loss) as increase to interest income	$ 3,000

XML

Derivative Financial Instruments - Summary of Outstanding Foreign Exchange Derivatives Designated as Net Investment Hedges of Foreign Currency Risk (Detail) - Designated as Hedging Instrument [Member] - Net Investment Hedges [Member] € in Thousands, £ in Thousands, kr in Thousands, $ in Thousands, $ in Thousands	Sep. 30, 2021 CAD ($) DerivativeInstrument	Sep. 30, 2021 SEK (kr) DerivativeInstrument	Sep. 30, 2021 EUR (€) DerivativeInstrument	Sep. 30, 2021 GBP (£) DerivativeInstrument	Sep. 30, 2021 AUD ($) DerivativeInstrument	Dec. 31, 2020 CAD ($) DerivativeInstrument	Dec. 31, 2020 EUR (€) DerivativeInstrument	Dec. 31, 2020 GBP (£) DerivativeInstrument	Dec. 31, 2020 AUD ($) DerivativeInstrument
Buy USD / Sell SEK Forward [Member] | SEK [Member]
Derivative [Line Items]
Number of Instruments	1	1	1	1	1
Notional Amount | kr		kr 999,500
Buy USD / Sell EUR Forward [Member] | EUR [Member]
Derivative [Line Items]
Number of Instruments	6	6	6	6	6	8	8	8	8
Notional Amount | €			€ 817,642				€ 754,722
Buy USD / Sell GBP Forward [Member] | GBP [Member]
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	4	4	4	4
Notional Amount | £				£ 542,551				£ 372,487
Buy USD / Sell AUD Forward [Member] | AUD [Member]
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1	1	1
Notional Amount | $					$ 89,500				$ 92,800
Buy USD / Sell CAD Forward [Member] | CAD [Member]
Derivative [Line Items]
Number of Instruments	1	1	1	1	1	1	1	1	1
Notional Amount | $	$ 21,000					$ 26,200

XML

Derivative Financial Instruments - Summary of Non-designated Hedges (Detail) - Not Designated as Hedging Instrument [Member] € in Thousands, £ in Thousands	Sep. 30, 2021 EUR (€) DerivativeInstrument	Sep. 30, 2021 GBP (£) DerivativeInstrument	Dec. 31, 2020 EUR (€) DerivativeInstrument	Dec. 31, 2020 GBP (£) DerivativeInstrument
GBP [Member] | Buy EUR / Sell GBP Forward [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments			2	2
Notional Amount | £				£ 146,207
EUR [Member] | Buy USD / Sell EUR Forward [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1	1	1
Notional Amount | €	€ 13,900		€ 8,410
EUR [Member] | Buy GBP / Sell EUR Forward [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1
Notional Amount | £		£ 8,410
USD [Member] | Buy EUR / Sell USD Forward [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of Instruments	1	1
Notional Amount | €	€ 13,900

XML

Derivative Financial Instruments - Schedule of Derivative Instruments Gain Loss in Statement of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net			$ 3,298	$ 754
Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ 1,568	$ 2,236	(2,185)	1,235
Designated as Hedging Instrument [Member] | Interest Income [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	1,542	1,794	5,294	2,303
Not Designated as Hedging Instrument [Member] | Interest Income [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	34	(227)	(340)	(222)
Not Designated as Hedging Instrument [Member] | Interest Expense [Member] | Foreign Exchange Forward [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (8)	$ 669	$ (7,139)	$ (846)

XML

Derivative Financial Instruments - Summary of Fair Value of Derivative Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	$ 35,858	$ 522
Fair Value of Derivatives in a Liability Position	355	58,915
Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	35,460	522
Fair Value of Derivatives in a Liability Position	0	55,758
Designated as Hedging Instrument [Member] | Interest Rate Swaps/Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	0	1
Fair Value of Derivatives in a Liability Position	0	0
Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	35,460	521
Fair Value of Derivatives in a Liability Position	0	55,758
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	398	0
Fair Value of Derivatives in a Liability Position	355	3,157
Not Designated as Hedging Instrument [Member] | Interest Rate Swaps/Derivatives [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	0	0
Fair Value of Derivatives in a Liability Position	0	0
Not Designated as Hedging Instrument [Member] | Foreign Currency Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Fair Value of Derivatives in an Asset Position	398	0
Fair Value of Derivatives in a Liability Position	$ 355	$ 3,157

XML

Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Detail) - USD ($)	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	$ 46,078,000	$ 65,052,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	(5,000)	(7,000)
Net Investment [Member] | Foreign Currency Contracts [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	46,078,000	65,052,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	0	0
Cash Flow Hedges [Member] | Interest Rate Swaps/Derivatives [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Recognized in OCI on Derivatives	0	0
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	$ (5,000)	$ (7,000)

XML

Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Parenthetical) (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest and related expenses	$ 82,690,000	$ 78,978,000	$ 243,413,000	$ 268,070,000
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	5,000		7,000
Interest Rate Swaps/Derivatives [Member] | Cash Flow Hedges [Member] | Interest Expense [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount of Gain (Loss) Reclassified from Accumulated OCI into Income	5,000		7,000
Foreign Currency Contracts [Member] | Net Investment Hedges [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net cash settlements on our foreign currency forward contracts	$ 18,300,000		$ 31,000,000.0

XML

Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended
	Nov. 14, 2018	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Mar. 25, 2014
Class of Stock [Line Items]
Total stock, shares authorized		500,000,000		500,000,000
Common stock, shares authorized		400,000,000		400,000,000		400,000,000
Dividends paid				$ 97,300
Dividends paid per common stock				$ 0.62
Date of dividend paid				Oct. 15, 2021
Date of dividend declared				Sep. 15, 2021
Record date of dividend paid				Sep. 30, 2021
Accumulated other comprehensive income (loss)		$ 9,874		$ 9,874		$ 11,170
Net realized and unrealized gains related to changes in fair value of derivative instruments		69,900		69,900		4,800
Cumulative unrealized currency translation adjustment on assets and liabilities denominated in foreign currencies		60,000		60,000		6,400
Multifamily [Member] | Joint Venture [Member]
Class of Stock [Line Items]
Total equity		226,700		226,700		121,100
Equity interests owned by Blackstone Mortgage Trust, Inc.		192,700		192,700		102,900
Non-controlling interests		$ 34,000		$ 34,000		$ 18,200
Dividend Reinvestment and Direct Stock Purchase Plan [Member]
Class of Stock [Line Items]
Reserved for issuance of class A common stock		9,990,545		9,990,545			10,000,000
Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares authorized		400,000,000		400,000,000
Preferred stock, shares authorized		100,000,000		100,000,000
Common stock, shares issued under dividend reinvestment program				1,429	1,599
Class A Common Stock [Member] | Dividend Reinvestment and Direct Stock Purchase Plan [Member]
Class of Stock [Line Items]
Common stock, shares issued under dividend reinvestment program		480	628	1,429	1,599
Class A Common Stock [Member] | ATM Agreements [Member]
Class of Stock [Line Items]
Aggregate sales price	$ 500,000
Aggregate sales price remaining available		$ 363,800		$ 363,800

XML

Equity - Summary of Class A Common Stock Issuances (Detail) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	9 Months Ended
		May 31, 2013	Sep. 30, 2021	Sep. 30, 2020
Class of Stock [Line Items]
Shares issued		25,875,000	10,001,429	10,842,295
Net proceeds			$ 311,955	$ 278,322
Class A Common Stock [Member]
Class of Stock [Line Items]
Shares issued			10,000,000
Gross per share issue price			$ 31.45
Net per share issue price			$ 31.24
Net proceeds	[1]		$ 311,955

[1] Net proceeds represents proceeds received from the underwriters less applicable transaction costs.

XML

Equity - Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units (Detail) - shares		1 Months Ended	9 Months Ended
		May 31, 2013	Sep. 30, 2021	Sep. 30, 2020
Equity [Abstract]
Beginning balance			147,086,722	135,263,728
Issuance of class A common stock		25,875,000	10,001,429	10,842,295
Issuance of restricted class A common stock, net	[1]		234,229	351,333
Issuance of deferred stock units			50,009	33,790
Ending balance			157,372,389	146,491,146

[1] The amounts are net of 29,580 and 249 shares of restricted class A common stock forfeited under our stock-based incentive plans during the nine months ended September 30, 2021 and 2020, respectively. See Note 14 for further discussion of our stock-based incentive plans.

XML

Equity - Schedule of Movement in Outstanding Shares of Class A Common Stock, Restricted Class A Common Stock and Deferred Stock Units (Parenthetical) (Detail) - shares	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Class A Common Stock [Member]
Class of Stock [Line Items]
Common stock, shares issued under dividend reinvestment program	1,429	1,599
Restricted Stock [Member]
Class of Stock [Line Items]
Deferred stock units held by directors	356,700	293,856
Restricted Class A Common Stock, Forfeited	29,580
Restricted Stock [Member] | Class A Common Stock [Member]
Class of Stock [Line Items]
Restricted Class A Common Stock, Forfeited	29,580	249

XML

Equity - Schedule of Dividend Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity [Abstract]
Dividends declared per share of common stock	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 0.62	$ 1.86	$ 1.86
Class A common stock dividends declared	$ 97,350			$ 90,642			$ 279,659	$ 265,205
Deferred stock unit dividends declared	202			174			591	502
Total dividends declared	$ 97,552			$ 90,816			$ 280,250	$ 265,707

XML

Equity - Schedule of Basic and Diluted Earnings Per Share, or EPS, Based on Weighted-Average of Both Restricted and Unrestricted Class A Common Stock Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income (loss)	$ 83,757	$ 89,860	$ 295,254	$ 54,054
Weighted-average shares outstanding, basic and diluted	149,214,819	146,484,651	147,971,737	140,157,620
Per share amount, basic and diluted	$ 0.56	$ 0.61	$ 2.00	$ 0.39

XML

Other Expenses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management fee - percent of outstanding equity balance			1.50%
Incentive fee computation-percent of the product per agreement			20.00%
Incentive fee computation-percent of outstanding Equity per annum			7.00%
Management fees description			our Manager earns a base management fee in an amount equal to 1.50% per annum multiplied by our outstanding equity balance, as defined in the Management Agreement. In addition, our Manager is entitled to an incentive fee in an amount equal to the product of (i) 20% and (ii) the excess of (a) our Core Earnings (as defined in our Management Agreement) for the previous 12-month period over (b) an amount equal to 7.00% per annum multiplied by our outstanding Equity, provided that our Core Earnings over the prior three-year period is greater than zero. Core Earnings, as defined in our Management Agreement, is generally equal to our GAAP net income (loss), including realized gains and losses not otherwise recognized in current period GAAP net income (loss), and excluding (i) non-cash equity compensation expense, (ii) depreciation and amortization, (iii) unrealized gains (losses), (iv) certain non-cash items, and (v) incentive management fees.
Management fees	$ 19,342	$ 18,985	$ 60,094	$ 58,758
Manager [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Management fees	15,800	15,600	46,900	44,800
Total incentive compensation payments	3,600	$ 3,400	13,200	13,900
Accrued management and incentive fees payable	$ 19,300		19,300		$ 19,200
Payment for management and incentive fees			$ 59,900	40,700
Manager [Member] | Class A Common Stock [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock Issued During Period, Value, Issued for Services				$ 19,300
Stock Issued During Period, Shares, Issued for Services				840,696

XML

Other Expenses - Schedule of General and Administrative Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Professional services	$ 1,969	$ 1,715	$ 5,831	$ 5,130
Operating and other costs	792	878	2,093	3,212
Subtotal	2,761	2,593	7,924	8,342
Non-cash compensation expenses
Restricted class A common stock earned	7,907	8,524	23,762	25,603
Director stock-based compensation	173	125	422	375
Subtotal	8,080	8,649	24,184	25,978
Total general and administrative expenses	$ 10,841	$ 11,242	$ 32,108	$ 34,320

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Other Expenses - Schedule of General and Administrative Expenses (Parenthetical) (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Multifamily [Member] | Joint Venture [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Expenses related Multifamily Joint Venture.	$ 110,000	$ 293,000	$ 543,000	$ 869,000

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	May 31, 2013	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Tax Credit Carryforward [Line Items]
Annual distribution of net taxable income for U.S. federal income tax not to apply to our earnings that we distribute (percent)				90.00%
Net taxable income subject to distribution (percent)				100.00%
Excise tax rate				4.00%
Income tax provision (benefit)		$ 70	$ 20	$ 346	$ 192
Deferred tax assets		0		0		$ 0
Deferred tax liabilities		0		$ 0		0
Common stock, shares issued	25,875,000			10,001,429	10,842,295
Net operating losses carried forward						$ 159,000
NOLs expiration date						Dec. 31, 2029
Open tax year				2017 2018 2019 2020
Internal Revenue Service [Member]
Tax Credit Carryforward [Line Items]
Net operating losses limit per annum		$ 2,000		$ 2,000
Net operating losses limitations				the availability of our NOLs is generally limited to $2.0 million per annum

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Stock-Based Incentive Plans - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) Plans shares	Dec. 31, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of benefit plans | Plans	9
Restricted Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares, vesting period	3 years
Number of shares of restricted class A common stock outstanding	1,143,320	1,627,890
Unrecognized compensation cost relating to nonvested share-based compensation | $	$ 33.6
Unrecognized compensation cost expected to be recognized over weighted average period	1 year
Expired Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available under plan	0
Vest in 2021 [Member] | Restricted Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding	239,145
Vest in 2022 [Member] | Restricted Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding	626,395
Vest in 2023 [Member] | Restricted Class A Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted class A common stock outstanding	277,780
Class A Common Stock [Member] | Stock Incentive Current Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available under plan	1,978,860
Maximum number of shares available under plan	5,000,000

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Stock-Based Incentive Plans - Movement in Outstanding Shares of Restricted Class A Common Stock and Weighted-Average Grant Date Fair Value Per Share (Detail) - Restricted Class A Common Stock [Member]	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Class A Common Stock, Beginning Balance | shares	1,627,890
Restricted Class A Common Stock, Granted | shares	263,809
Restricted Class A Common Stock, Vested | shares	(718,799)
Restricted Class A Common Stock, Forfeited | shares	(29,580)
Restricted Class A Common Stock, Ending Balance | shares	1,143,320
Weighted-Average Grant Date Fair Value Per Share, Beginning Balance | $ / shares	$ 33.14
Weighted-Average Grant Date Fair Value Per Share, Granted | $ / shares	26.16
Weighted-Average Grant Date Fair Value Per Share, Vested | $ / shares	33.08
Weighted-Average Grant Date Fair Value Per Share, Forfeited | $ / shares	31.52
Weighted-Average Grant Date Fair Value Per Share, Ending Balance | $ / shares	$ 31.60

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Fair Values - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets
Derivatives	$ 35,858	$ 522
Liabilities
Derivatives	355	58,915
Recurring [Member]
Assets
Derivatives	35,858	522
Liabilities
Derivatives	355	58,915
Level 1 [Member] | Recurring [Member]
Assets
Derivatives	0	0
Liabilities
Derivatives	0	0
Level 2 [Member] | Recurring [Member]
Assets
Derivatives		522
Liabilities
Derivatives	355
Level 3 [Member] | Recurring [Member]
Assets
Derivatives	0	0
Liabilities
Derivatives	$ 0	$ 0

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Fair Values - Schedule of Details of Book Value, Face Amount, and Fair Value of Financial Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financial assets
Cash and cash equivalents	$ 211,180	$ 289,970
Loans receivable, net	20,522,560	16,652,824
Debt securities held-to-maturity	79,200	79,200
Financial liabilities
Secured debt agreements, net, face amount	11,188,855	7,896,863
Securitized debt obligations, net	2,836,049	2,922,499
Securitized debt obligations, net,face amount	2,855,625	2,940,638
Term loans, net	1,352,706	1,062,766
Asset-specific debt , net, face amount	328,068	399,699
Book Value [Member]
Financial assets
Cash and cash equivalents	211,180	289,970
Loans receivable, net	20,276,078	16,399,166
Debt securities held-to-maturity	77,636	75,722
Financial liabilities
Secured debt, net	11,170,330	7,880,536
Securitized debt obligations, net	2,836,049	2,922,499
Asset-specific debt , net	320,895	391,269
Term loans, net	1,329,637	1,041,704
Convertible notes, net	618,985	616,389
Fair Value [Member]
Financial assets
Cash and cash equivalents	211,180	289,970
Loans receivable, net	20,358,824	16,447,192
Debt securities held-to-maturity	78,633	70,127
Financial liabilities
Secured debt, net	11,188,855	7,896,863
Securitized debt obligations, net	2,855,589	2,923,489
Asset-specific debt , net	328,068	399,699
Term loans, net	1,343,771	1,053,060
Convertible notes, net	633,845	621,568
Convertible Senior Note [Member]
Financial liabilities
Convertible notes, net, face amount	$ 622,500	$ 622,500

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Variable Interest Entities - Summary of Assets and Liabilities of Consolidated CLO and Single Asset Securitization VIE (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Assets:
Assets	$ 20,705,872	$ 16,958,955
Liabilities:
Liabilities	16,435,320	13,054,724
VIE [Member]
Assets:
Assets	3,503,362	3,587,950
Liabilities:
Liabilities	2,837,680	2,924,603
VIE [Member] | Loans Receivable [Member]
Assets:
Assets	3,475,000	3,520,130
Loans receivable, net	3,470,956	3,506,676
VIE [Member] | Current Expected Credit Loss Reserve [Member]
Assets:
Assets	(4,044)	(13,454)
VIE [Member] | Other Assets [Member]
Assets:
Assets	32,406	81,274
VIE [Member] | Securitized Debt Obligations, Net [Member]
Liabilities:
Liabilities	2,836,049	2,922,499
VIE [Member] | Other Liabilities [Member]
Liabilities:
Liabilities	$ 1,631	$ 2,104

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Variable Interest Entities - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2018
Variable Interest Entity [Line Items]
Subordinate risk retention interest notional amount		$ 99.0
Loans Receivable [Member]
Variable Interest Entity [Line Items]
Loan contributed to securitization	$ 517.5
2018 Single Asset Securitization [Member]
Variable Interest Entity [Line Items]
Single asset securitization principal amount		$ 1,000.0
Maximum exposure to loss	$ 77.6

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Transactions with Related Parties - Additional Information (Detail) € in Millions, £ in Millions, kr in Billions	3 Months Ended				9 Months Ended
	Sep. 30, 2021 USD ($) shares	Sep. 30, 2021 GBP (£)	Jun. 30, 2021 EUR (€)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2021 GBP (£) shares	Sep. 30, 2021 EUR (€) shares	Mar. 31, 2021 USD ($)	Mar. 31, 2021 SEK (kr)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Sep. 30, 2019 EUR (€)	Jun. 30, 2019 USD ($)
Related Party Transaction [Line Items]
Non-cash expenses					$ 24,184,000		$ 25,978,000
Loan face amount	$ 20,522,560,000				20,522,560,000	$ 16,652,824,000
Unrealized (loss) gain on foreign currency translation Principal Balance					$ (228,637,000)
Restricted Class A Common Stock [Member]
Related Party Transaction [Line Items]
Shares held | shares	1,143,320				1,143,320	1,627,890		1,143,320	1,143,320
Senior Term Facility [Member]
Related Party Transaction [Line Items]
Senior term facility | £								£ 186.0
Percentage of senior loan borrowed	22.00%				22.00%			22.00%	22.00%
Increase of senior term loan facility | €			€ 100.0
Unrealized (loss) gain on foreign currency translation Principal Balance | £		£ 379.6
Senior Term Facility [Member] | Senior Loan Origination Under Marketed Process [Member]
Related Party Transaction [Line Items]
Loan face amount	$ 974,500,000				$ 974,500,000
Manager [Member]
Related Party Transaction [Line Items]
Management Agreement expiration date					Dec. 19, 2021
Management Agreement renewal term, description					the current term of which expires on December 19, 2021, and will be automatically renewed for a one-year term upon such date and each anniversary thereafter unless earlier terminated.
Accrued management and incentive fees payable	19,300,000				$ 19,300,000	$ 19,200,000
Management fees paid to Manager	21,500,000			$ 20,500,000	59,900,000	59,900,000
Expenses reimbursed to Manager	$ 141,000			416,000	$ 325,000		$ 839,000
Manager [Member] | Class A Common Stock [Member]
Related Party Transaction [Line Items]
Stock Issued During Period, Shares, Issued for Services | shares							840,696
Management fees paid to Manager							$ 19,300,000
Manager [Member] | Class A Common Stock [Member] | Restricted Class A Common Stock [Member]
Related Party Transaction [Line Items]
Shares held | shares	578,914				578,914			578,914	578,914
Non-cash expenses	$ 4,100,000			4,300,000	$ 12,200,000		12,800,000
Manager [Member] | Class A Common Stock [Member] | Restricted Class A Common Stock [Member] | Manager [Member]
Related Party Transaction [Line Items]
Non-cash expenses					18,500,000
Affiliates of Manager [Member] | Third-Party Service Provider [Member]
Related Party Transaction [Line Items]
Administrative services expenses incurred	100,000			98,000	291,000		369,000
BXMT Advisors Limited Liability Company and Affiliates [Member]
Related Party Transaction [Line Items]
Accrued management and incentive fees payable	19,300,000				19,300,000	$ 19,200,000
BXMT Advisors Limited Liability Company and Affiliates [Member] | B Two Term Loan [Member]
Related Party Transaction [Line Items]
Total incentive compensation payments					350,000
BXMT Advisors Limited Liability Company and Affiliates [Member] | B One Term Loan [Member]
Related Party Transaction [Line Items]
Total incentive compensation payments					950,000
Blackstone-Advised Investment Vehicles, or the Funds [Member] | B Two Term Loan [Member]
Related Party Transaction [Line Items]
Debt Securities	$ 20,000,000.0			$ 20,000,000.0	$ 20,000,000.0		$ 20,000,000.0
percentage of total secured term loans	5.00%			5.00%	5.00%		5.00%	5.00%	5.00%
Blackstone-Advised Investment Vehicles, or the Funds [Member] | B One Term Loan [Member]
Related Party Transaction [Line Items]
Debt Securities										$ 65,500,000			$ 65,500,000			$ 65,500,000
percentage of total secured term loans										7.00%	7.00%		7.00%	7.00%		7.00%
Blackstone-Advised Investment Vehicles, or the Funds [Member] | Senior Term Facility [Member]
Related Party Transaction [Line Items]
Loan face amount									€ 491.0		kr 10.2	$ 421,500,000		€ 1,600.0	€ 1,600.0
Senior term facility	$ 246,600,000		€ 50.0		$ 246,600,000						kr 5.0	$ 140,000,000.0		€ 250.0	€ 250.0
Minority participation in senior term facility	49.00%		10.00%		49.00%			49.00%	49.00%	49.00%	49.00%	33.00%	16.00%	16.00%
Unrealized (loss) gain on foreign currency translation Principal Balance	$ 503,300,000
Blackstone-Advised Investment Vehicles, or the Funds [Member] | Senior Term Facility [Member] | Senior Loan Origination Under Marketed Process [Member]
Related Party Transaction [Line Items]
Senior term facility	243,600,000				$ 243,600,000
Blackstone-Advised Investment Vehicles, or the Funds [Member] | Senior Term Facility [Member] | Additional Senior Loan Origination Under Marketed Process [Member]
Related Party Transaction [Line Items]
Senior term facility	243,600,000				243,600,000
Unaffiliated Third Parties [Member] | Senior Term Facility [Member] | Senior Loan Origination Under Marketed Process [Member]
Related Party Transaction [Line Items]
Senior term facility	$ 487,300,000				$ 487,300,000

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Commitments and Contingencies - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2021 USD ($) Loans Directors
Commitments And Contingencies [Line Items]
Number of loans receivable | Loans	108
Number of independent directors entitled to annual compensation | Directors	6
Loans Receivable [Member]
Commitments And Contingencies [Line Items]
Unfunded loan commitments	$ 4,200,000,000
Aggregate unfunded loan commitments	$ 2,600,000,000
Weighted-average future funding period	3 years 2 months 12 days
Unfunded Commitments Related To Loans Receivable Excluding Identified Financing	$ 1,600,000,000
Five Independent Board of Directors [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	210,000
Annual cash compensation paid in the form of deferred stock units	115,000
Annual cash compensation paid in cash	95,000
Chairperson of Audit Committee [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	20,000
Audit Committee Members [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	10,000
Compensation and Corporate Governance Committees [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	10,000
Compensation and Corporate Governance Committees [Member] | Amendment One [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	15,000
Investment risk management committee [Member]
Commitments And Contingencies [Line Items]
Annual cash compensation	$ 7,500

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Commitments and Contingencies - Schedule of Principal Debt Repayments (Detail) $ in Thousands	Sep. 30, 2021 USD ($)
Debt Instrument [Line Items]
2021 (remainder of the year)	$ 134,104
2022	644,268
2023	2,218,470
2024	3,950,739
2025	1,422,933
2026	5,019,523
Thereafter	102,092
Total Obligation	13,492,129
Secured Debt Agreements[Member]
Debt Instrument [Line Items]
2021 (remainder of the year)	130,668
2022	228,030
2023	1,834,836
2024	3,937,001
2025	1,231,023
2026	3,725,205
Thereafter	102,092
Total Obligation	11,188,855
Asset-Specific Agreements [Member]
Debt Instrument [Line Items]
2021 (remainder of the year)	0
2022	0
2023	149,896
2024	0
2025	178,172
2026	0
Thereafter	0
Total Obligation	328,068
Secured Term Loans [Member]
Debt Instrument [Line Items]
2021 (remainder of the year)	3,436
2022	13,738
2023	13,738
2024	13,738
2025	13,738
2026	1,294,318
Thereafter	0
Total Obligation	1,352,706
Convertible Notes [Member]
Debt Instrument [Line Items]
2021 (remainder of the year)	0
2022	402,500
2023	220,000
2024	0
2025	0
2026	0
Thereafter	0
Total Obligation	$ 622,500

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Commitments and Contingencies - Schedule of Principal Debt Repayments (Parenthetical) (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Debt Instrument [Line Items]
Debt Instrument Amortization Percentage	1.00%
Securitized debt obligations excluded from contractual obligations	$ 2,900.0
Non-consolidated securitized debt excluded from contractual obligations	997.6
Non-consolidated senior interests excluded from contractual obligations	$ 414.1

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Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands		9 Months Ended
	Oct. 05, 2021	Sep. 30, 2021	Sep. 30, 2020
Proceeds from long term secured debt		$ 7,701,481	$ 2,317,616
Subsequent Event [Member] | Three Point Seven Five Senior Secured Notes due Two Thousand Twenty Seven [Member]
Face value	$ 400,000
Long term debt fixed interest rate percentage	3.75%
Long term debt date of maturity	Jan. 15, 2027
Subsequent Event [Member] | Bxmt Advisory Limited Liability Company And Affiliates [Member] | Three Point Seven Five Senior Secured Notes due Two Thousand Twenty Seven [Member]
Proceeds from long term secured debt	$ 400,000