v3.25.4
Fair Value Measurement - Summary of Changes in Fair Value of Level 3 Assets By Investment Type (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Debt and Equity Securities, Unrealized Gain (Loss)  
Net Change in Unrealized Appreciation (Depreciation) for assets still held $ 5,627 $ (16,159)
1st Lien/Senior Secured Debt    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held 4,129 (11,309)
1st Lien/Last-Out Unitranche    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held 3,509 (1,906)
2nd Lien/Senior Secured Debt    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held 495 (1)
Preferred Stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held 26 (3,101)
Common Stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held (2,536) 158
Warrants    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Net Change in Unrealized Appreciation (Depreciation) for assets still held 4  
Level 3    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance 5,398,349 1,605,348
Purchases [1] $ 8,244,568 4,363,246
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Gain (Loss) on Investments  
Net Realized Gain (Loss) $ (2,416) (5,624)
Net Change in Unrealized Appreciation (Depreciation) 4,467 (12,749)
Sales and Settlements [1] (1,470,264) (571,069)
Net Amortization of Premium/Discount 30,992 15,802
Transfers In [2] 0 3,395
Transfers Out [2] (59,082)  
Ending Balance 12,146,614 5,398,349
Level 3 | 1st Lien/Senior Secured Debt    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance 5,131,334 1,418,647
Purchases [1] 8,015,728 4,256,633
Net Realized Gain (Loss) (2,416) (5,621)
Net Change in Unrealized Appreciation (Depreciation) 3,011 (7,899)
Sales and Settlements [1] (1,312,623) (548,536)
Net Amortization of Premium/Discount 29,118 14,715
Transfers In [2] 0 3,395
Transfers Out [2] (59,082)  
Ending Balance 11,805,070 5,131,334
Level 3 | 1st Lien/Last-Out Unitranche    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance 261,643 166,684
Purchases [1] 188,036 96,362
Net Change in Unrealized Appreciation (Depreciation) 3,467 (1,906)
Sales and Settlements [1] (157,641)  
Net Amortization of Premium/Discount 1,843 503
Ending Balance 297,348 261,643
Level 3 | 2nd Lien/Senior Secured Debt    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance   20,017
Purchases [1] 36,266 1,936
Net Realized Gain (Loss)   (3)
Net Change in Unrealized Appreciation (Depreciation) 495 (1)
Sales and Settlements [1]   (22,533)
Net Amortization of Premium/Discount 31 584
Ending Balance 36,792  
Level 3 | Preferred Stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Purchases [1] 2,067 3,101
Net Change in Unrealized Appreciation (Depreciation) 26 (3,101)
Ending Balance 2,093  
Level 3 | Common Stock    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Beginning Balance 5,372  
Purchases [1] 2,446 5,214
Net Change in Unrealized Appreciation (Depreciation) (2,536) 158
Ending Balance 5,282 $ 5,372
Level 3 | Warrants    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Purchases [1] 25  
Net Change in Unrealized Appreciation (Depreciation) 4  
Ending Balance $ 29  
[1] Purchases may include PIK, securities received in corporate actions and restructurings. Sales and Settlements may include securities delivered in corporate actions and restructuring of investments.
[2] Transfers in (out) of Level 3, if any, are due to a decrease (increase) in the quantity and reliability of broker quotes obtained by the Investment Adviser.