Investments - Summary of Other Equity Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Equity Method Investment	$ 41,215	$ 58,590
ABS [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment	23,198	40,977
Atalanta Sosnoff [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment	10,944	10,948
Luminis [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment	6,560	6,158
Seneca Evercore [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investment	$ 513	$ 507