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Earnings Per Share
3 Months Ended
Mar. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share
Basic earnings per share is computed by dividing net income by the weighted average number of shares of common stock outstanding. Diluted earnings per share is computed by dividing net income by the weighted average common and potentially dilutive common equivalent shares outstanding, determined as follows:
 
Three Months Ended
 
March 31,
(In thousands)
2019
 
2018
Weighted average shares outstanding used to compute basic earnings per share
33,123

 
32,982

Incremental dilutive shares attributable to stock options and restricted stock
4

 
6

Shares used to compute diluted earnings per share
33,127

 
32,988


Incremental shares attributable to stock options and restricted stock are computed under the treasury stock method using the average market price during the related period. For the three months ended March 31, 2019, average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 975,904. For the three months ended March 31, 2018, average out-of-the-money options to purchase shares that were excluded from the calculation of incremental shares attributable to stock options and restricted stock were 313,834.