Quarterly report pursuant to Section 13 or 15(d)

Investments - Schedule of Investment Interest Income and Fee Income (Details)

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Investments - Schedule of Investment Interest Income and Fee Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Schedule Of Investments [Line Items]        
Total interest and dividend income $ 110,339 $ 81,408 $ 319,222 $ 212,391
Total fee income 6,405 2,821 18,843 9,110
Contractual interest income        
Schedule Of Investments [Line Items]        
Total interest and dividend income 89,747 66,451 258,685 172,057
Exit fee interest income        
Schedule Of Investments [Line Items]        
Total interest and dividend income 10,904 8,696 34,340 22,077
PIK interest income        
Schedule Of Investments [Line Items]        
Total interest and dividend income 6,652 4,944 17,999 14,888
Other Interest Income        
Schedule Of Investments [Line Items]        
Total interest and dividend income 3,036 1,317 8,198 3,369
Recurring fee income        
Schedule Of Investments [Line Items]        
Total fee income 2,243 2,076 6,418 5,762
Fee income - expired commitments        
Schedule Of Investments [Line Items]        
Total fee income 300 29 651 550
Accelerated fee income - early repayments        
Schedule Of Investments [Line Items]        
Total fee income $ 3,862 $ 716 $ 11,774 $ 2,798