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Accrued Compensation and Benefits - Performance Allocations and Incentive Fee Related Compensation (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Retirement Benefits [Abstract]    
Realized $ 103.6 $ 137.6
Unrealized 2.1 233.1
Total $ 105.7 $ 370.7