Investments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Schedule of Investments [Line Items]
Income from Equity Method Investments	$ 2,325	$ 1,468
Net Realized and Unrealized Gains (Losses) on Private Equity Fund Investments	73	322
Previously Received Carried Interest Subject to Repayment	100
Total Assets	3,005,988	2,750,472	$ 3,703,298
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	5,845		5,762
Equity Securities without Readily Determinable Fair Value, Amount	631		636
Variable Interest Entity, Not Primary Beneficiary [Member]
Schedule of Investments [Line Items]
Total Assets	3,662		$ 3,580
Equity Method Investments [Member]
Schedule of Investments [Line Items]
Amortization of Intangible Assets	$ 79	79
ABS [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage	26.00%
Income from Equity Method Investments	$ 1,002	1,006
Atalanta Sosnoff [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage	49.00%
Income from Equity Method Investments	$ 635	391
Luminis [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage	20.00%
Income from Equity Method Investments	$ 568	162
Seneca Evercore [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage	20.00%
Income from Equity Method Investments	$ 120	$ (91)