Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Consolidated Entity Excluding Consolidated Funds
Investment Holdings [Line Items]
Unrealized gain on investments	$ (0.2)	$ 0.1	$ 0.1	$ 1.0
Consolidated Funds
Investment Holdings [Line Items]
Unrealized gain on investments	$ 12.3	$ (0.2)	$ 15.5	$ 0.6