Condensed Consolidated Statement of Operations - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019		Sep. 30, 2019		Jun. 30, 2019		Mar. 31, 2019		Dec. 31, 2019		Dec. 31, 2018
Net Interest Income
Interest income	$ 45,353		$ 39,985		$ 38,547		$ 36,016		$ 159,901		$ 131,027	[1]
Interest expense	(21,205)		(19,954)		(19,702)		(17,618)		(78,479)		(56,707)
Total net interest income	24,148		20,031		18,845		18,398		81,422
Other income											4,014
Total investment income											135,041
Other Income (Loss)
Realized gains (losses) on securities and loans, net									(12,785)
Realized (gains) losses on financial derivatives, net									(30,912)
Realized gains (losses) on real estate owned, net									2,327
Unrealized gains (losses) on securities and loans, net									54,478
Unrealized gains (losses) on financial derivatives, net									(5,338)
Unrealized gains (losses) on real estate owned, net									(1,279)
Other, net	1,001		539		1,808		2,002		5,350
Total other income (loss)	(126)		3,682		2,781		5,504		11,841
Expenses
Base management fee to affiliate (Net of fee rebates)	2,663	[2]	1,942	[2]	1,661	[2]	1,722	[2]	7,988	[2]	7,573	[3]
Incentive Fee Expense	116		0		0		0		116		715
Other investment related expenses
Servicing expense	2,055		1,940		2,244		2,393		8,632		7,715
Debt issuance costs related to Other secured borrowings, at fair value	1,865		0		1,671		0		3,536		1,647
Other	1,941		1,347		1,238		1,083		5,609		7,592
Professional fees	1,021		698		1,178		1,956		4,853		3,902
Administration fees											734
Compensation expense	962		712		903		1,072		3,649		2,233
Insurance expense											487
Directors' fees and expenses											298
Share-based long term incentive plan unit expense									475		415
Other expenses	1,160		1,156		1,053		985		4,354		1,898
Total expenses	11,783		7,795		9,948		9,211		38,737		91,916
NET INVESTMENT INCOME											43,125
Net realized gain (loss) on:
Investments											25,421
Financial derivatives, excluding currency hedges											(2,639)
Financial derivatives—currency hedges											4,475
Foreign currency transactions									(2,392)		4,131
Total net realized gain (loss)											31,388
Change in net unrealized gain (loss) on:
Investments											(25,947)
Other secured borrowings											758
Financial derivatives, excluding currency hedges											7,093
Financial derivatives—currency hedges											565
Foreign currency translation											(7,071)
Net unrealized gain (loss)											(24,602)
NET REALIZED AND CHANGE IN NET UNREALIZED GAIN (LOSS) ON INVESTMENTS, OTHER SECURED BORROWINGS, FINANCIAL DERIVATIVES, AND FOREIGN CURRENCY TRANSACTIONS/TRANSLATION											6,786
NET INCREASE IN EQUITY RESULTING FROM OPERATIONS											49,911
Net Income (Loss) before Income Tax Expense (Benefit) and Earnings from Investments in Unconsolidated Entities	12,239		15,918		11,678		14,691		54,526
Income Tax Expense (Benefit)	1,180		2		376		0		1,558
Earnings from investments in unconsolidated entities	3,262		2,796		2,354		1,797		10,209
Net Income (Loss)	14,321		18,712		13,656		16,488		63,177
Net income (loss) attributable to non-controlling interests	1,733		1,419		1,012		1,080		5,244		3,235
Preferred Stock Dividends, Income Statement Impact	1,466		0		0		0		1,466
Net Income (Loss) Attributable to Common Stockholders	$ 11,122		$ 17,293		$ 12,644		$ 15,408		$ 56,467		$ 46,676
Net Income (Loss) per Share of Common Stock:
Basic and Diluted (USD per share)	$ 0.31		$ 0.53		$ 0.43		$ 0.52		$ 1.76		$ 1.52

[1] Includes interest income and interest expense of a consolidated securitization trust of $6.0 million and $3.6 million, respectively, for the year ended December 31, 2018. See Note 6 for further details on the Company's consolidated securitization trust.

[2] See Note 13 for further details on management fee rebates.

[3] See Note 9 for further details on management fee rebates.