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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
Stockholders' Equity | 10. Stockholders’ Equity At December 31, 2017 and 2016, treasury stock consisted of 3,561,509 shares and 3,470,084 shares of common stock, respectively. During 2017, 57,963 shares of Company common stock were purchased in the open market and 18,827 shares of Company common stock were purchased from Company Retirement Plans. In addition, 22,598 shares were received to settle employees’ minimum statutory withholding taxes related to performance stock awards, exercised SARs and deferred compensation distributions. Also, 7,965 shares of treasury stock were distributed to participants under the Company’s deferred compensation plan.

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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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