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Fair Value Measurements (Fair Value Of Certain Financial Assets And Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity available-for-sale securities	$ 11,002	$ 11,588
Fixed income available-for-sale securities	64,648	66,021
Fixed income securities owned	21,225	21,175
Investment funds sponsored by LSV	3,944	4,523
Assets, fair value	100,819	103,307
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity available-for-sale securities	11,002	11,588
Fixed income available-for-sale securities	0	0
Fixed income securities owned	0	0
Investment funds sponsored by LSV	0	0
Assets, fair value	11,002	11,588
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity available-for-sale securities	0	0
Fixed income available-for-sale securities	64,648	66,021
Fixed income securities owned	21,225	21,175
Investment funds sponsored by LSV	3,944	4,523
Assets, fair value	$ 89,817	$ 91,719

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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