Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Indefinite-lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 66,300	$ 66,331	$ 0	$ 31,520
Amortization expense for finite-lived intangible assets		13,000	13,900	$ 12,500
Goodwill, period decrease		2,300
Rights to Manage Fund Assets
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		237,400	304,600
Trade Name
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		$ 49,200	$ 50,100