Commitments and Contingencies - Summary of Investment Company Capital Commitments (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Dec. 31, 2024 |
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Capital Commitments | $ 1,901,732 | $ 1,443,918 | $ 1,832,547 |
| Unfunded Capital Commitments | $ 1,444,669 | $ 1,488,821 | |
| Percentage of Capital Commitments Funded | 24.03% | 10.04% | 18.76% |