Fees waived for providing investment management services to employees and other related parties.

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Loan write-off period.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amounts due from an Entity employee, not to include stockholders or officers, which are usually due within 1 year (or 1 business cycle).

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Date the credit facility terminates, in YYYY-MM-DD format.

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The effective interest rate during the reporting period.

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The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Related Party Transactions (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Dec. 17, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Investment advisory fees		$ 48,697	$ 50,877	$ 101,457	$ 96,748
Loan write-off period				7 years
Net of Expense Reimbursement \| VIEs That are Not Consolidated
Related Party Transaction [Line Items]
Investment advisory fees		300	300	$ 600	600
Employees
Related Party Transaction [Line Items]
Loans to employees		4,700		4,700		$ 3,600
Pzena Mutual Funds
Related Party Transaction [Line Items]
Investment advisory fees waived		200	200	500	600
Company's Executive Officers and Other Employees
Related Party Transaction [Line Items]
Investment advisory fees waived		300	$ 200	600	$ 400
Revolving Line Of Credit Agreement Member
Related Party Transaction [Line Items]
Line Of Credit	$ 15,000
Line of credit facility, term	5 years
Line of credit facility maturity date	Dec. 17, 2026
Borrowings		$ 10,000		$ 10,000
Revolving Line Of Credit Agreement Member \| Secured Overnight Financing Rate
Related Party Transaction [Line Items]
Line of credit facility interest rate during period	1.10%