CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Investment Income, Nonoperating [Abstract]
PIK interest income	$ 17,898	$ 12,151	$ 3,006
Total Investment Income	320,875	301,782	276,522
Expenses
Management fees	24,243	19,450	17,369
Performance-based incentive fees	16,100	21,548	24,565
Interest and other debt expenses	127,076	115,961	104,198
Administrative services expense	6,675	4,120	5,840
Other general and administrative expenses	6,263	8,176	10,131
Total expenses	180,357	169,255	162,103
Performance-based incentive fee offset			(274)
Expense reimbursements	(1,477)	(769)	(1,306)
Net Expenses	178,880	168,486	160,523
Net Investment Income	141,995	133,296	115,999
Net realized gains (losses):
Net realized gains (losses)	(45,877)	(76,428)	131
Foreign currency forward contracts	(610)
Foreign currency transactions	(233)	(592)	69
Extinguishment of debt	(3,406)
Net realized gains (losses)	(50,126)	(77,020)	200
Net change in unrealized gains (losses):
Foreign currency forward contracts	(9)
Foreign currency translations	(2,684)	1,525	(2,548)
Net change in unrealized gains (losses)	(28,700)	42,543	2,561
Net Realized and Change in Unrealized Gains (Losses)	(78,826)	(34,477)	2,761
Net Increase (Decrease) in Net Assets Resulting from Operations	$ 63,169	$ 98,819	$ 118,760
Earnings (Loss) Per Share - Basic	$ 0.68	$ 1.27	$ 1.82
Non-controlled/Non-affiliated Investments
Investment Income, Nonoperating [Abstract]
Interest income (excluding Payment-in-kind ("PIK") interest income)	$ 280,556	$ 265,157	$ 249,102
Dividend income	31	40	409
PIK interest income	16,736	12,011	2,012
Other income	1,899	4,147	3,727
Net realized gains (losses):
Net realized gains (losses)	(45,539)	(4,273)	131
Net change in unrealized gains (losses):
Net change in unrealized gains (losses)	(43,004)	(19,626)	(1,326)
Non-controlled/Affiliated Investments
Investment Income, Nonoperating [Abstract]
Interest income (excluding Payment-in-kind ("PIK") interest income)	5,207	2,685	1,126
Dividend income	840	726	1,010
PIK interest income	1,162	140	125
Net realized gains (losses):
Net realized gains (losses)	(338)	(11,668)
Net change in unrealized gains (losses):
Net change in unrealized gains (losses)	(8,601)	(5,232)	3,799
Controlled Investments
Investment Income, Nonoperating [Abstract]
Interest income (excluding Payment-in-kind ("PIK") interest income)	14,306	16,781	17,892
PIK interest income			869
Other income	138	95	250
Net realized gains (losses):
Net realized gains (losses)		(60,487)
Net change in unrealized gains (losses):
Net change in unrealized gains (losses)	$ 25,598	$ 65,876	$ 2,636