Compensation and Benefits - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Compensation Arrangements [Line Items]
Options Exercised (in shares)	0	0	0	0
Deferred Compensation Liability	$ 3,604		$ 3,604		$ 6,840
Options canceled (in shares)			0	0
Unrecorded compensation expense	$ 39,900		$ 39,900		$ 42,100
Phantom Shares of Class A Common Stock | Director Plan
Compensation Arrangements [Line Items]
Deferred compensation percentage of compensation directors elected			100.00%
Shares outstanding (in shares)	648,722		648,722		597,412
Distributions made under Director Plan (in shares)	28,460	11,070	28,460	11,070
Restricted Shares of Class A Common Stock | Director Plan
Compensation Arrangements [Line Items]
Number of shares issued under plan	5,015	5,074	5,015	5,074
Common Class B
Compensation Arrangements [Line Items]
Delayed Exchange Class B units issued (in shares)	242,963	7,882	381,201	33,979
Delayed Exchange Class B units issued	$ 1,000		$ 1,700	$ 100
Common Class B | Maximum
Compensation Arrangements [Line Items]
Delayed Exchange Class B units issued		$ 100
Equity Incentive Plan 2006
Compensation Arrangements [Line Items]
Cash compensation paid in the form of equity					$ 6,800
2007 Equity Incentive Plan | Contingent Options to Purchase Shares of Class A Common Stock
Compensation Arrangements [Line Items]
Number of shares vested during period	0	250,000	0	250,000
Bonus plan
Compensation Arrangements [Line Items]
Vesting period for units (in years)			4 years