Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income
Total Investment Income	$ 482,526	$ 438,087	$ 309,305
Expenses
Interest	154,145	133,731	62,991
Management fees	51,786	46,382	39,900
Incentive fees on net investment income	45,530	42,590	33,401
Incentive fees on net capital gains	(5,375)	4,382	(8,864)
Professional fees	7,546	7,323	7,192
Directors’ fees	877	806	736
Other general and administrative	5,522	5,280	5,427
Total expenses	260,031	240,494	140,783
Management and incentive fees waived (Note 3)	(1,466)	(1,171)	(427)
Net Expenses	258,565	239,323	140,356
Net Investment Income Before Income Taxes	223,961	198,764	168,949
Income taxes, including excise taxes	3,944	2,365	2,622
Net Investment Income	220,017	196,399	166,327
Net change in unrealized gains (losses):
Net Unrealized gains (losses) on investments	(52,794)	18,854	(76,381)
Translation of other assets and liabilities in foreign currencies	13,379	(6,393)	8,721
Interest rate swaps	0	174	(6,748)
Income tax provision	(2,609)	556	(561)
Total net change in unrealized gains (losses)	(42,024)	13,191	(74,969)
Realized gains (losses):
Realized gains (losses) on investments	9,037	12,253	14,735
Interest rate swaps			2,251
Foreign currency transactions	(464)	180	(291)
Total net realized gains (losses)	8,573	12,433	16,695
Total Net Unrealized and Realized Gains (Losses)	(33,451)	25,624	(58,274)
Increase (Decrease) in Net Assets Resulting from Operations	$ 186,566	$ 222,023	$ 108,053
Earnings per common share—basic	$ 2.03	$ 2.61	$ 1.38
Weighted average shares of common stock outstanding—basic	92,035,165	85,131,264	78,197,826
Earnings per common share - diluted	$ 2.03	$ 2.61	$ 1.38
Weighted average shares of common stock outstanding - diluted	92,035,165	85,131,264	78,197,826
Non-controlled, Non-affiliated Investments
Income
Interest from investments	$ 413,547	$ 391,343	$ 279,857
Paid-in-kind interest income	29,335	19,679	12,585
Dividend income	11,678	4,181	2,159
Other income	18,525	15,122	9,502
Total Investment Income	473,085	430,325	304,103
Net change in unrealized gains (losses):
Net Unrealized gains (losses) on investments	(47,625)	40,571	(70,085)
Realized gains (losses):
Realized gains (losses) on investments	9,037	12,095	1,072
Non-controlled, Affiliated Investments
Income
Interest from investments	0		133
Total Investment Income	0		133
Net change in unrealized gains (losses):
Net Unrealized gains (losses) on investments	0		(14,350)
Realized gains (losses):
Realized gains (losses) on investments	0	158	13,608
Controlled, Affiliated Investments
Income
Interest from investments	9,428	7,756	5,064
Other income	13	6	5
Total Investment Income	9,441	7,762	5,069
Net change in unrealized gains (losses):
Net Unrealized gains (losses) on investments	$ (5,169)	$ (21,717)	8,054
Realized gains (losses):
Realized gains (losses) on investments			$ 55