v3.26.3
Investments - Investments at Fair Value and Amortized Cost (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Amortized Cost $ 1,772,255 $ 1,507,082
Fair Value 1,764,226 1,506,869
First-Lien Senior Secured Debt Investments    
Schedule of Investments [Line Items]    
Amortized Cost 1,576,296 1,205,695
Fair Value 1,568,106 1,205,232
Second Lien Senior Secured Debt Investments    
Schedule of Investments [Line Items]    
Amortized Cost 46,310 48,640
Fair Value 46,075 48,987
Unsecured Debt Investments    
Schedule of Investments [Line Items]    
Amortized Cost 82,664 79,872
Fair Value 83,067 79,786
Equity Investments    
Schedule of Investments [Line Items]    
Amortized Cost 2,000 0
Fair Value 2,000 0
U.S. Treasury Bills    
Schedule of Investments [Line Items]    
Amortized Cost 64,985 172,875
Fair Value $ 64,978 $ 172,864