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Compensation and Benefits - Change in Value of Investments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Variable Interest Entity, Primary Beneficiary
Schedule of Investments [Line Items]
Net investment gain (loss) of nonconsolidated investment products	$ 23,165	$ 9,787	$ 45,636	$ 38,189
Long-Term Cash Awards | Compensation and benefits
Schedule of Investments [Line Items]
Compensation and benefits	4,596	(1,230)	9,187	1,216
Long-Term Cash Awards | Net investment gain (loss) of nonconsolidated investment products
Schedule of Investments [Line Items]
Net investment gain (loss) of nonconsolidated investment products	8,800	(4,454)	17,828	6,127
Long-Term Cash Awards | Net investment gain (loss) of nonconsolidated investment products | Variable Interest Entity, Primary Beneficiary
Schedule of Investments [Line Items]
Net investment gain (loss) of nonconsolidated investment products	$ 848	$ 148	$ 1,970	$ 711

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Long-term Incentive Compensation Expense, Impact of Change in Value of Investments

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Amount of realized and unrealized gain (loss) on investment.

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-Name Accounting Standards Codification
-Section S99
-Paragraph 19
-Subparagraph (1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-19

Reference 65: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 19
-Subparagraph (3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-19

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