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Investment in Unconsolidated Affiliates (Condensed Statements of Operations of LSV) (Details) - LSV Asset Management - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Revenues	$ 491,700	$ 517,203	$ 491,872
Net income	$ 390,533	$ 410,846	$ 392,141

X

- Definition

The amount of net income (loss) reported by an equity method investment of the entity.

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Amount of revenue from sale of product and rendering of service reported by equity method investee.

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