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Treasury Stock Acquisition (Detail) - 6 months ended Jun. 30, 2015 - USD ($) $ in Thousands | Total
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Schedule of Treasury Stock [Line Items] |
Treasury stock acquired, Shares, Beginning balance | 42,818,585
Treasury stock acquired, Shares, Ending balance | 43,207,240
Treasury stock acquired, Values, Beginning balance | $ 899,035
Treasury stock acquired, Values | 8,010
Treasury stock acquired, Values, Ending balance | $ 907,045
2013 Program |
Schedule of Treasury Stock [Line Items] |
Treasury stock acquired, Shares | 8,618
Treasury stock acquired, Values | $ 180
Long Term Incentive Plan |
Schedule of Treasury Stock [Line Items] |
Treasury stock acquired, Shares | 380,037
Treasury stock acquired, Values | $ 7,830

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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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