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Treasury Stock | 6 Months Ended
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Jun. 30, 2018
Equity [Abstract] |
Treasury Stock | Treasury Stock Common stock held in treasury totaled 655,306 and 644,091 with a cost of $1,484 and $1,472 at June 30, 2018 and December 31, 2017, respectively. These shares were withheld from employees to settle personal tax withholding obligations that arose as a result of restricted stock units that have vested in the periods presented.

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- Definition The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2208821 + Details
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