Investments - Performance Allocations Included in Revenues (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Schedule of Investments [Line Items]
Total	$ 198.2	$ (246.8)	$ 41.2	$ (86.0)
Global Private Equity
Schedule of Investments [Line Items]
Total	185.0	(327.6)	(178.5)	(331.4)
Global Credit
Schedule of Investments [Line Items]
Total	46.2	37.7	111.3	71.1
Global Investment Solutions
Schedule of Investments [Line Items]
Total	$ (33.0)	$ 43.1	$ 108.4	$ 174.3