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Borrowings - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Debt Disclosure [Abstract] |  |  |
Interest expense | $ 29.0 |  | $ 38.7
Unused commitment fees | $ 1.1 |  | $ 1.2
Weighted average interest rate | 5.10% | 4.68% |
Weighted average interest rate all-in | 5.23% | 4.78% |
Average principal debt outstanding | $ 5,046.2 | $ 5,619.0 |

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