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Stockholders' Equity | 3 Months Ended
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Mar. 31, 2018
Equity [Abstract] |
Stockholders' Equity | Stockholders' Equity On February 14, 2018, the Company retired 109,207 shares of its treasury stock. On December 31, 2017 the shares were acquired in satisfaction of withholding taxes which were paid by the Company on behalf of coworkers under the Performance Share Awards program.

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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