Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Fees receivable	$ 145,809	$ 160,349
Due from related parties	31,449	21,068
Employees
Related Party Transaction [Line Items]
Redeemable non-controlling interests, Related Party	53,900	84,300
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	14,900	21,200	$ 7,900
Employee Loans
Related Party Transaction [Line Items]
Due from employees	8,800	9,500
Forgivable Loan Balances	3,800	4,600
Amortization on Forgivable Loans	5,700	3,700	3,800
Interest Income, Related Party	$ 100	100	100
Employee Loans \| Minimum
Related Party Transaction [Line Items]
Forgivable Loans, Vesting Period	1 year
Employee Loans \| Maximum
Related Party Transaction [Line Items]
Forgivable Loans, Vesting Period	3 years
Affiliated Entity
Related Party Transaction [Line Items]
Fees receivable	$ 16,600	28,400
Other Funds
Related Party Transaction [Line Items]
Due from related parties	$ 22,600	$ 7,900
Starboard Value LP
Related Party Transaction [Line Items]
Effective interest rate		5.00%
Interest Income, Related Party		$ 200	$ 300
Due from related parties		$ 3,600
Finance Period		5 years

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Forgivable loan balances

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For an unclassified balance sheet, the amount of fees and other revenue, excluding investment income receivable, earned but not yet received, which were recognized in conformity with revenue recognition criteria based on estimates or specific contractual terms.

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