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Compensation and Benefits - Change in Value of Investments (Details) - Long-Term Cash Awards - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Compensation and benefits
Schedule of Investments [Line Items]
Compensation and benefits	$ (1,941)	$ 213	$ (2,648)	$ 210
Other net investment gain (loss)
Schedule of Investments [Line Items]
Net investment gain (loss)	$ (12,244)	$ (2,578)	$ (15,205)	$ (2,473)

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

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