v3.25.4
Investments - Schedule of Investments Excluding Investments in Money Market Funds (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Cost $ 1,596,478 [1] $ 2,124,410 [2]
Fair Value 1,534,345 [1] 2,087,081 [2]
1st Lien/Senior Secured Debt    
Schedule of Investments [Line Items]    
Cost 1,514,118 2,032,863
Fair Value 1,468,487 1,992,547
1st Lien/Last-Out Unitranche    
Schedule of Investments [Line Items]    
Cost 30,821 22,830
Fair Value 29,474 22,642
2nd Lien/Senior Secured Debt    
Schedule of Investments [Line Items]    
Cost 3,789 3,789
Fair Value 2,526 3,587
Unsecured Debt    
Schedule of Investments [Line Items]    
Cost 6,558 15,031
Fair Value 6,654 14,969
Preferred Stock    
Schedule of Investments [Line Items]    
Cost 16,005 25,315
Fair Value 23,007 34,482
Common Stock    
Schedule of Investments [Line Items]    
Cost 23,521 22,916
Fair Value 3,974 18,475
Warrants    
Schedule of Investments [Line Items]    
Cost 1,666 1,666
Fair Value $ 223 $ 379
[1] For Industry subtotal and percentage, see Note 4 "Investments."
[2] For Industry subtotal and percentage, see Note 4 "Investments."