Investments - Schedule of Components of Accrued Giveback Obligations (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Segment Reporting Information [Line Items] | ||
| Accrued giveback obligations | $ (102.0) | $ (72.8) |
| Global Private Equity | ||
| Segment Reporting Information [Line Items] | ||
| Accrued giveback obligations | (76.5) | (47.3) |
| Global Credit | ||
| Segment Reporting Information [Line Items] | ||
| Accrued giveback obligations | $ (25.5) | $ (25.5) |