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Earnings Per Common Share
6 Months Ended
Jun. 30, 2020
Earnings Per Share [Abstract]  
Earnings Per Common Share Earnings Per Common Share
Earnings per common share (“EPS”) is 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, concludes 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, EPS was computed using the two-class method prescribed by ASC 260.
Basic weighted average shares outstanding reconciles to diluted weighted average shares outstanding as follows:
 Three Months Ended June 30,Six Months Ended June 30,
 2020201920202019
Basic weighted average common shares outstanding75,171  75,460  75,459  75,450  
Dilutive effect of stock options, restricted stock and performance share units766  927  739  884  
Diluted weighted average common shares outstanding75,937  76,387  76,198  76,334  

Options to purchase approximately 0.6 million shares of common stock for each of the three months ended June 30, 2020 and 2019, and 0.6 million shares of common stock for each of the six months ended June 30, 2020 and 2019, were not included in the computation of diluted EPS because the effect of their inclusion would have been antidilutive.