v3.26.1
Fair Value of Investments - Schedule of Net Change in Unrealized Gains 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]        
Net change in unrealized gain (loss) $ (25,035) $ (10,696) $ (52,357) $ (15,236)
First-lien senior secured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) (4,284) (9,600) (12,539) (14,364)
Second-lien senior secured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) (21,263) (3,187) (36,008) (4,893)
Unsecured debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) 12 866 (702) 1,342
Specialty finance debt investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) 0 (17) 0 (16)
Preferred equity investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) (559) 676 (3,053) 714
Common equity investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) 858 (254) 147 388
Specialty finance equity investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Net change in unrealized gain (loss) $ 201 $ 820 $ (202) $ 1,593