Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income
Total investment income	$ 62,815	$ 49,545	$ 161,190	$ 145,864
Expenses
Interest and debt financing expenses	14,381	12,265	36,051	37,115
Management fees	8,853	8,776	25,673	26,096
Incentive fee incurred	2,976	4,531	10,356	19,301
Professional fees	968	581	1,804	2,254
Directors fees	177	186	531	529
Other general and administrative expenses	1,357	1,445	4,254	4,075
Total expenses before fee waivers	28,712	27,784	78,669	89,370
Base management fee waiver				(4,837)
Incentive fee waiver				(4,519)
Total expenses, net of fee waivers	28,712	27,784	78,669	80,014
Net investment income (loss)	34,103	21,761	82,521	65,850
Net realized and unrealized gains (losses)
Net realized gain (loss)			(6,339)	18,731
Net realized gain (loss) on foreign currency transactions	2,254	(72)	4,932	(2,093)
Net realized gain (loss) on forward currency exchange contracts	17,633	(2,085)	20,894	(23,773)
Net realized loss on extinguishment of debt	(745)	(2,546)	(745)	(2,546)
Net change in unrealized depreciation on foreign currency translation	(4,820)	(508)	(6,525)	(186)
Net change in unrealized appreciation (depreciation) on forward currency exchange contracts	(2,210)	6,080	7,565	26,685
Net change in unrealized appreciation (depreciation) on investment			(40,342)	14,860
Total net gains (losses)	(23,052)	1,581	(20,560)	31,678
Net increase in net assets resulting from operations	$ 11,051	$ 23,342	$ 61,961	$ 97,528
Earnings Per Share [Abstract]
Basic net investment income per common share	$ 0.53	$ 0.34	$ 1.28	$ 1.02
Diluted net investment income per common share		0.34		1.02
Basic increase in net assets resulting from operations per common share	$ 0.17	0.36	$ 0.96	1.51
Diluted increase in net assets resulting from operations per common share		$ 0.36		$ 1.51
Basic weighted average common shares outstanding	64,562,265	64,562,265	64,562,265	64,562,265
Diluted weighted average common shares outstanding		64,562,265		64,562,265
Non-controlled/non-affiliate
Income
Interest from investments	$ 36,239	$ 37,821	$ 100,295	$ 114,439
Dividend income	4,532	38	4,640	38
PIK income	4,276	1,046	9,159	3,108
Other income	4,329	1,181	12,484	5,512
Total investment income	49,376	40,086	126,578	123,097
Net realized and unrealized gains (losses)
Net realized gain (loss)	(5,180)	(668)	(6,339)	22,589
Net change in unrealized appreciation (depreciation) on investment	(24,937)	922	(57,251)	2,125
Non-controlled/affiliate investment
Income
Interest from investments	2,141	455	4,366	1,355
Dividend income	1,067		2,918
PIK income	48	1,421	1,497	4,173
Total investment income	3,256	1,876	8,781	5,528
Net realized and unrealized gains (losses)
Net change in unrealized appreciation (depreciation) on investment	(4,640)	2,905	10,129	8,312
Controlled affiliate
Income
Interest from investments	5,437	4,983	13,073	9,192
Dividend income	4,746	2,600	12,758	7,564
PIK income				483
Total investment income	10,183	7,583	25,831	17,239
Net realized and unrealized gains (losses)
Net realized gain (loss)		(621)		(3,858)
Net change in unrealized appreciation (depreciation) on investment	$ (407)	$ (1,826)	$ 6,780	$ 4,423