Investments - Additional Information (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Mar. 28, 2022	Jan. 31, 2022
Schedule of Investments [Line Items]
Income from Equity Method Investments		$ 6,655	$ 7,999	$ 14,161
Amortization of Intangible Assets			336	362
Net Realized and Unrealized Gains (Losses) on Private Equity Fund Investments		946	347	(1,059)
Previously Received Carried Interest Subject to Repayment		147
Total Assets	$ 3,802,657	3,703,298	3,620,923	3,802,657
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount		5,762	5,385
Special Charges, Including Business Realignment Costs		2,921	3,126	8,554
Equity Securities without Readily Determinable Fair Value, Amount		636	604
Variable Interest Entity, Not Primary Beneficiary [Member]
Schedule of Investments [Line Items]
Total Assets		3,580	3,166
Equity Method Investments [Member]
Schedule of Investments [Line Items]
Amortization of Intangible Assets		$ 316	316	316
ABS [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage		26.00%			26.00%	46.00%
Income from Equity Method Investments		$ 4,132	4,463	10,524
Proceeds from Sale of Equity Method Investments			18,300
ABS [Member] | Other Revenue, Including Interest and Investments
Schedule of Investments [Line Items]
Equity Method Investment, Realized Gain (Loss) on Disposal			1,294
Atalanta Sosnoff [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage		49.00%
Income from Equity Method Investments		$ 1,903	2,319	2,300
Luminis [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage		20.00%
Income from Equity Method Investments		$ 390	813	1,334
Seneca Evercore [Member]
Schedule of Investments [Line Items]
Equity Method Investment, Ownership Percentage		20.00%
Income from Equity Method Investments		$ 230	$ 404	3
G5 [Member] | Other Revenue, Including Interest and Investments
Schedule of Investments [Line Items]
Debt Securities, Gain (Loss)				$ 4,374
Trilantic VI [Member]
Schedule of Investments [Line Items]
Proceeds from Sale of Equity Method Investments	$ 9,188