Investments - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Cost	$ 82,083	$ 97,147
Fair Value	83,771	97,304
Sponsored funds
Debt Securities, Available-for-sale [Line Items]
Cost	63,220	80,794
Fair Value	63,296	77,433
Equity investments
Debt Securities, Available-for-sale [Line Items]
Cost	17,406	16,353
Fair Value	19,019	19,871
Debt securities
Debt Securities, Available-for-sale [Line Items]
Cost	1,457	0
Fair Value	$ 1,456	$ 0