v3.26.1
Fair Value of Financial Instruments - Schedule of Reconciliation of the Beginning and Ending Balances for Investments that Use Level 3 Inputs (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Net realized gain/ (loss) on investments $ 88 $ 0
Net change in unrealized gain/ (loss) on investments (3,829) 896
Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 921,965 399,268
Purchases and other adjustments to cost 25,190 153,295
Sales and repayments (69,300) (4,541)
Net realized gain/ (loss) on investments 49  
Net change in unrealized gain/ (loss) on investments (3,223) 904
Net accretion of discount on investments 731 409
Ending Balance 875,412 549,335
Net change in unrealized appreciation (depreciation) on investments still held $ (2,246) $ 912
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax
First Lien Senior Secured | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance $ 890,459 $ 393,203
Purchases and other adjustments to cost 20,805 142,665
Sales and repayments (53,732) (4,541)
Net realized gain/ (loss) on investments (19)  
Net change in unrealized gain/ (loss) on investments (3,356) 995
Net accretion of discount on investments 731 409
Ending Balance 854,888 532,731
Net change in unrealized appreciation (depreciation) on investments still held (2,402) 1,000
Second Lien Senior Secured | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 15,600 0
Purchases and other adjustments to cost 28 10,520
Sales and repayments (15,000) 0
Net realized gain/ (loss) on investments 68  
Net change in unrealized gain/ (loss) on investments (22) (119)
Net accretion of discount on investments 0 0
Ending Balance 674 10,401
Net change in unrealized appreciation (depreciation) on investments still held 2 (119)
Equity | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 15,856 6,065
Purchases and other adjustments to cost 4,357 110
Sales and repayments (568) 0
Net realized gain/ (loss) on investments 0  
Net change in unrealized gain/ (loss) on investments 154 (44)
Net accretion of discount on investments 0 0
Ending Balance 19,799 6,131
Net change in unrealized appreciation (depreciation) on investments still held 154 (41)
Warrant | Level 3    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Beginning Balance 50 0
Purchases and other adjustments to cost 0 0
Sales and repayments 0 0
Net realized gain/ (loss) on investments 0  
Net change in unrealized gain/ (loss) on investments 1 72
Net accretion of discount on investments 0 0
Ending Balance 51 72
Net change in unrealized appreciation (depreciation) on investments still held $ 0 $ 72