Fair Value of Financial Instruments - Changes in Level 3 Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Series A Preferred Shares
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Contributions/ Purchases		$ 0
Transfer Into (Out of) Level 3		0
Investments (Eliminated) Acquired Through Consolidation		0
Return of capital		0
Unrealized gain/(loss)		0
Level 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	$ 518,698	567,640
Contributions/ Purchases	23,655	11,746
Paid in- kind dividends	5,338	4,748
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		(20,598)
Redemptions/ conversions	(15,205)	(9,948)
Return of capital	0	(1,266)
Realized gain/(loss)	4,975	(22,161)
Unrealized gain/(loss)	(59,371)	17,526
Fair value, ending balance	478,090	547,687
Level 3 | CLO
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance		1,215
Contributions/ Purchases		0
Paid in- kind dividends		0
Transfer Into (Out of) Level 3		0
Investments (Eliminated) Acquired Through Consolidation		0
Redemptions/ conversions		0
Return of capital		(1,266)
Realized gain/(loss)		(22,735)
Unrealized gain/(loss)		22,786
Fair value, ending balance		0
Level 3 | Common stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	157,828	176,256
Contributions/ Purchases	0	904
Paid in- kind dividends	0	0
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		(5,763)
Redemptions/ conversions	(3,687)	0
Return of capital	0	0
Realized gain/(loss)	1,511	0
Unrealized gain/(loss)	(29,180)	(8,922)
Fair value, ending balance	126,472	162,475
Level 3 | Convertible notes
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	20,846	42,251
Contributions/ Purchases	0	0
Paid in- kind dividends	0	0
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		(19,835)
Redemptions/ conversions	(7,001)	(2,125)
Return of capital	0	0
Realized gain/(loss)	0	0
Unrealized gain/(loss)	236	533
Fair value, ending balance	14,081	20,824
Level 3 | LLC interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	36,777	39,399
Contributions/ Purchases	22,345	157
Paid in- kind dividends	0	0
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		5,000
Redemptions/ conversions	(3,995)	0
Return of capital	0	0
Realized gain/(loss)	3,462	0
Unrealized gain/(loss)	(7,116)	304
Fair value, ending balance	51,473	44,860
Level 3 | LP interest
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	189,659	195,898
Contributions/ Purchases	1,310	4,185
Paid in- kind dividends	0	0
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		0
Redemptions/ conversions	0	0
Return of capital	0	0
Realized gain/(loss)	0	0
Unrealized gain/(loss)	(23,571)	2,886
Fair value, ending balance	167,398	202,969
Level 3 | Series A Preferred Shares
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	69,895	66,268
Contributions/ Purchases	0
Paid in- kind dividends	2,824	2,613
Transfer Into (Out of) Level 3	0
Redemptions/ conversions	0	(1,700)
Return of capital	0
Realized gain/(loss)	0	0
Unrealized gain/(loss)	0
Fair value, ending balance	72,719	67,181
Level 3 | Senior loan
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Fair value, beginning balance	43,693	46,353
Contributions/ Purchases	0	6,500
Paid in- kind dividends	2,514	2,135
Transfer Into (Out of) Level 3	0	0
Investments (Eliminated) Acquired Through Consolidation		0
Redemptions/ conversions	(522)	(6,123)
Return of capital	0	0
Realized gain/(loss)	2	574
Unrealized gain/(loss)	260	(61)
Fair value, ending balance	$ 45,947	$ 49,378