Quarterly report pursuant to Section 13 or 15(d)

Investments - Investment Portfolio at Cost and Fair Value (Details)

v3.23.2
Investments - Investment Portfolio at Cost and Fair Value (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]    
Amortized Cost $ 7,053,034 $ 5,860,186
Fair Value $ 7,025,359 $ 5,716,521
% of Total Investments at Fair Value 100.00% 100.00%
First lien debt    
Schedule of Investments [Line Items]    
Amortized Cost $ 6,954,930 $ 5,755,124
Fair Value $ 6,928,353 $ 5,614,718
% of Total Investments at Fair Value 98.62% 98.22%
Second lien debt    
Schedule of Investments [Line Items]    
Amortized Cost $ 49,740 $ 47,764
Fair Value $ 48,622 $ 45,248
% of Total Investments at Fair Value 0.69% 0.79%
Unsecured debt    
Schedule of Investments [Line Items]    
Amortized Cost $ 14,871 $ 26,302
Fair Value $ 14,702 $ 25,512
% of Total Investments at Fair Value 0.21% 0.45%
Industrial Transportation    
Schedule of Investments [Line Items]    
Amortized Cost $ 29,093 $ 28,929
Fair Value $ 28,953 $ 28,737
% of Total Investments at Fair Value 0.41% 0.50%
Equity investments    
Schedule of Investments [Line Items]    
Amortized Cost $ 4,400 $ 2,067
Fair Value $ 4,729 $ 2,306
% of Total Investments at Fair Value 0.07% 0.04%