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Fair Value Measurements (Tables) | 3 Months Ended
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Mar. 31, 2018
Fair Value Disclosures [Abstract] |
Fair Value Of Certain Financial Assets And Liabilities | The fair value of certain financial assets of the Company was determined using the following inputs:
|  |  |  | Fair Value Measurements at the End of the Reporting Period Using
Assets |  | March 31, 2018 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2)
Equity available-for-sale securities |  | $ | 11,316 |  |  | $ | 11,316 |  |  | $ | — |
Fixed-income available-for-sale securities |  | 71,773 |  |  | — |  |  | 71,773 |
Fixed-income securities owned |  | 21,600 |  |  | — |  |  | 21,600 |
Investment funds sponsored by LSV (1) |  | 5,534 |  |  |  |  |
|  | $ | 110,223 |  |  | $ | 11,316 |  |  | $ | 93,373 |
|  |  |  | Fair Value Measurements at the End of the Reporting Period Using
Assets |  | December 31, 2017 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2)
Equity available-for-sale securities |  | $ | 11,250 |  |  | $ | 11,250 |  |  | $ | — |
Fixed-income available-for-sale securities |  | 76,733 |  |  | — |  |  | 76,733 |
Fixed-income securities owned |  | 21,526 |  |  | — |  |  | 21,526 |
Investment funds sponsored by LSV (1) |  | 6,034 |  |  |  |  |
|  | $ | 115,543 |  |  | $ | 11,250 |  |  | $ | 98,259 |
(1) The fair value amounts presented in the tables above are intended to permit reconciliation of the fair value hierarchy to the amounts presented on the accompanying Consolidated Balance Sheets (See Note 6).

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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