v3.26.3
Fair Value Measurement - Summary of Changes in Fair Value of Level 3 Assets by Investment Type (Details) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Net Amortization of Premium/Discount $ 1,306 $ 2,873
Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 329,255 582,495
Purchases [1] 36,584 55,950
Net Realized Gain (Loss) 20,049 (60,506)
Net Change in Unrealized Appreciation (Depreciation) (38,784) 57,758
Sales and Settlements [1] (103,836) (304,560)
Net Amortization of Premium/Discount 1,306 2,873
Ending Balance 244,574 334,010
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (35,893) (177)
Level 3 | 1st Lien/Senior Secured Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 204,984 419,988
Purchases [1] 5,720 34,660
Net Realized Gain (Loss)   (59,274)
Net Change in Unrealized Appreciation (Depreciation) (13,596) 53,809
Sales and Settlements [1] (70,517) (236,472)
Net Amortization of Premium/Discount 913 2,276
Ending Balance 127,504 214,987
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (13,713) (994)
Level 3 | 1st Lien/Last-Out Unitranche    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 86,354 142,219
Purchases [1] (2,033) 10,358
Net Change in Unrealized Appreciation (Depreciation) (10,832) 256
Sales and Settlements [1] (385) (68,088)
Net Amortization of Premium/Discount 77 674
Ending Balance 73,181 85,419
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (10,832) (1,642)
Level 3 | 2nd Lien/Senior Secured Debt    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 28,835 16,934
Purchases [1] 32,897 1,139
Net Realized Gain (Loss) 21,283  
Net Change in Unrealized Appreciation (Depreciation) (11,503) 6,517
Sales and Settlements [1] (32,934)  
Net Amortization of Premium/Discount 316 (77)
Ending Balance 38,894 24,513
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (7,261) 6,516
Level 3 | Preferred Stock    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 5,728  
Purchases [1]   5,738
Net Change in Unrealized Appreciation (Depreciation) (3,832) (1)
Ending Balance 1,896 5,737
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (3,832) (2)
Level 3 | Common Stock    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Beginning Balance 3,354 3,354
Purchases [1]   4,055
Net Realized Gain (Loss)   (1,232)
Net Change in Unrealized Appreciation (Depreciation) (255) (2,823)
Ending Balance 3,099 3,354
Fair Value Assets Measured On Recurring Basis Change In Unrealized Appreciation Depreciation For Assets Still Held (255) [1] $ (4,055)
Level 3 | Warrants    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Net Realized Gain (Loss) (1,234)  
Net Change in Unrealized Appreciation (Depreciation) $ 1,234  
[1] Purchases may include PIK, capitalized fees, securities received in corporate actions and restructurings. Sales and Settlements may include securities delivered in corporate actions and restructuring of investments.