Investments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Consolidated Entity Excluding Consolidated Funds
Investment Holdings [Line Items]
Unrealized gain (loss) on investments	$ 0.0	$ 1.2	$ 0.1	$ 2.2
Consolidated Funds
Investment Holdings [Line Items]
Unrealized gain (loss) on investments	$ 13.3	$ 3.2	$ 28.8	$ 3.7