Investment In Unconsolidated Affiliate (Condensed Statements of Operations of LSV) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Schedule of Equity Method Investments [Line Items]
Revenues	$ 581,443	$ 455,686
Equity Method Investment, Nonconsolidated Investee \| LSV Asset Management
Schedule of Equity Method Investments [Line Items]
Revenues	108,450	110,837
Net income	$ 83,791	$ 85,920

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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+ Details

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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