Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Accounting Policies [Line Items]
Cash	$ 109,358,000	$ 97,899,000	$ 135,217,000
Cash equivalents	21,062,000	57,503,000	384,996,000
Long-term receivables	11,064,000		20,041,000
Interest income from long-term receivables	294,000	204,000
Cumulative effect on retained earnings	$ 444,915,000	460,580,000	478,299,000	$ 444,473,000
Assets and Liabilities, Lessee
Percentage of tax benefits payable to partners under tax receivable agreement	85.00%
Remaining percentage of cash savings realized by the Company (as a percent)	15.00%
Revenue and Expense Recognition and Equity-Based Compensation
Minimum age of retiring employees required so that certain qualifying awards granted during employment will not be forfeited	56 years
Consecutive years of service of retiring employees required so that certain qualifying awards granted during employment will not be forfeited	5 years
Minimum total age and consecutive years of service of retiring employees required so that certain qualifying awards granted during employment will not be forfeited	65 years
Income Taxes
Unrecognized tax benefits	$ 0	0
Income tax related interest and penalties	0	0
Retained Earnings
Accounting Policies [Line Items]
Cumulative effect on retained earnings	$ (514,502,000)	$ (393,166,000)	$ (535,282,000)	$ (420,682,000)
Minimum
Accounting Policies [Line Items]
Installment Period	3 years
Minimum | Office Equipment and Furniture and Fixtures
Assets and Liabilities, Lessee
Useful lives	3 years
Maximum
Accounting Policies [Line Items]
Installment Period	4 years
Maximum | Office Equipment and Furniture and Fixtures
Assets and Liabilities, Lessee
Useful lives	7 years