Investments - Schedule of Net Investment Gains (Losses) of Consolidated Funds (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Investments [Abstract] | ||
| Gains (losses) from investments of Consolidated Funds | $ (248.6) | $ 7.0 |
| Gains (losses) from liabilities of consolidated CLOs | 184.2 | (0.9) |
| Total | $ (64.4) | $ 6.1 |