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Earnings Per Common Share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Earnings Per Common Share | Earnings Per Common Share Earnings per common share (“EPS”) are computed by dividing net income by the weighted average number of shares of common stock (basic) plus common stock equivalents outstanding (diluted) during the period. Common stock equivalents consist of stock options, which have been included in the calculation of weighted average shares outstanding using the treasury stock method, restricted stock, and performance share units. ASC 260, Earnings Per Share, provides that all outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends participate in undistributed earnings with common shareholders. If awards are considered participating securities, the Company is required to apply the two-class method of computing basic and diluted earnings per share. The Company has determined that its outstanding shares of restricted stock are participating securities. Accordingly, earnings per common share are computed using the more dilutive of the treasury stock method and the two-class method prescribed by ASC 260. Basic weighted average shares reconciles to diluted weighted average shares as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Basic weighted average common shares outstanding | 76,309 |  |  | 75,819 |  |  | 76,215 |  |  | 75,753 |
Dilutive effect of stock options, restricted stock, and performance share units | 1,214 |  |  | 1,061 |  |  | 1,031 |  |  | 989 |
Diluted weighted average common shares outstanding | 77,523 |  |  | 76,880 |  |  | 77,246 |  |  | 76,742 |
Options to purchase approximately zero and 0.1 million shares of common stock for the three months ended September 30, 2017 and 2016, respectively, and 0.4 million and 0.9 million shares of common stock for the nine months ended September 30, 2017 and 2016, respectively, were not included in the computation of diluted EPS because the effect of their inclusion would be antidilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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