Quarterly report pursuant to Section 13 or 15(d)

Borrowings - Additional Information (Details)

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Borrowings - Additional Information (Details) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Debt Disclosure [Abstract]      
Accrued interest expense $ 58,300,000   $ 57,300,000
Accrued unused commitment fee $ 2,200,000   1,500,000
Weighted average interest rate on borrowings 8.95% 7.63%  
Average principal debt outstanding $ 3,870,400,000 $ 2,672,400,000  
Short-term debt $ 0   $ 0