Investments - Interest and Other Income of Consolidated Funds (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Investments [Abstract]
Interest income from investments	$ 282.3	$ 231.3	$ 211.6
Other income	28.7	21.9	15.2
Total	$ 311.0	$ 253.2	$ 226.8