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Investments - Realized and Unrealized Gains (Losses) Earned from Investments of Consolidated Funds (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Investments [Abstract]      
Realized gains (losses) $ (60.7) $ (80.8) $ (29.6)
Net change in unrealized gains (losses) 157.1 327.7 (378.5)
Total $ 96.4 $ 246.9 $ (408.1)