v3.26.1
Fair Value Measurements - Schedule of Level 3 Input Reconciliation (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]        
Beginning Balance $ 1,416,956 $ 1,091 $ 1,163,003 $ 0
Transfer in to Level 3     15,686  
Transfer out of Level 3 (9,918)   (25,746)  
Purchases/Borrowings 322,074 337,891 646,563 338,869
Sales and Settlements/Paydowns (84,437) (13,820) (147,993) (13,823)
Accretion of discount/amortization of premium and paid-in-kind interest 1,086 72 2,141 73
Total net realized and net change in unrealized gain/(loss) on investments 4,974 464 (2,919) 579
Ending Balance 1,650,735 325,698 1,650,735 325,698
First Lien Debt Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Beginning Balance 1,389,756 893 1,146,863 0
Transfer in to Level 3     15,686  
Transfer out of Level 3 (9,918)   (25,746)  
Purchases/Borrowings 310,120 337,627 626,907 338,514
Sales and Settlements/Paydowns (72,194) (13,820) (135,750) (13,823)
Accretion of discount/amortization of premium and paid-in-kind interest 1,086 72 2,141 73
Total net realized and net change in unrealized gain/(loss) on investments 4,257 419 (6,994) 427
Ending Balance 1,623,107 325,191 1,623,107 325,191
Mezzanine Debt Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Beginning Balance 1,416   0  
Transfer in to Level 3     0  
Transfer out of Level 3 0   0  
Purchases/Borrowings 0   1,416  
Sales and Settlements/Paydowns 0   0  
Accretion of discount/amortization of premium and paid-in-kind interest 0   0  
Total net realized and net change in unrealized gain/(loss) on investments 0   0  
Ending Balance 1,416   1,416  
Equity Investments        
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Beginning Balance 25,784 198 16,140 0
Transfer in to Level 3     0  
Transfer out of Level 3 0   0  
Purchases/Borrowings 11,954 264 18,240 355
Sales and Settlements/Paydowns (12,243) 0 (12,243) 0
Accretion of discount/amortization of premium and paid-in-kind interest 0 0 0 0
Total net realized and net change in unrealized gain/(loss) on investments 717 45 4,075 152
Ending Balance $ 26,212 $ 507 $ 26,212 $ 507