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Earnings Per Share
9 Months Ended
Oct. 01, 2017
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings Per Share

Basic earnings per share was computed by dividing net income by the weighted-average number of common shares outstanding during the period less restricted unvested shares. Diluted earnings per share was computed by dividing net income by the weighted-average number of common shares outstanding plus all potentially dilutive common stock equivalents, primarily shares issuable upon the exercise of stock options using the treasury stock method. The following table reconciles the number of shares utilized in the earnings per share calculations:
 
Three Months Ended
 
Nine Months Ended
 
October 1,
2017
 
October 2,
2016
 
October 1,
2017
 
October 2,
2016
 
(In thousands)
Number of common shares—basic
110,003

 
109,192

 
109,788

 
109,524

Effect of dilutive securities:
 
 
 
 
 
 
 
Stock options
735

 
663

 
669

 
670

Restricted stock awards
255

 
223

 
196

 
178

Number of common shares—diluted
110,993

 
110,078

 
110,653

 
110,372

Number of potentially dilutive securities excluded from calculation due to antidilutive impact
14

 
220

 
377

 
523


Antidilutive securities include outstanding stock options with exercise prices and average unrecognized compensation cost in excess of the average fair market value of common stock for the related period. Antidilutive options were excluded from the calculation of diluted net income per share and could become dilutive in the future.