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Investment In Unconsolidated Affiliates (Condensed Balance Sheets of LSV) (Details) - LSV Asset Management [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Current assets	$ 125,872	$ 127,225
Non-current assets	1,927	2,375
Total assets	127,799	129,600
Current liabilities	39,303	40,876
Partners’ capital	88,496	88,724
Total liabilities and partners’ capital	$ 127,799	$ 129,600

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