Fair Value of Financial Instruments - Schedule of Net Change in Unrealized Gains (Losses) on Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	$ (65,526)	$ (11,633)	$ (358,879)	$ 3,791
Fair Value Asset Recurring Basis, Still Held, Unrealized Gain (Loss), Statement Of Income or Comprehensive Income [Extensible Enumeration]	Unrealized Gain (Loss) on Investments	Unrealized Gain (Loss) on Investments	Unrealized Gain (Loss) on Investments	Unrealized Gain (Loss) on Investments
First-lien senior secured debt investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	$ (31,241)	$ (40,500)	$ (255,082)	$ (43,243)
Second-lien senior secured debt investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	(27,692)	(5,990)	(58,820)	(12,954)
Specialty finance debt investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	(4,966)	11,412	(14,004)	23,456
Unsecured debt investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	0	0	0	(305)
Preferred equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	(20,874)	1,499	(27,735)	2,561
Common equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	15,375	9,457	(3,589)	11,214
Specialty finance equity investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total Investments	$ 3,872	$ 12,489	$ 351	$ 23,062