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 for the fiscal years ended:



	December 30, 2018	December 31, 2017	January 1, 2017
	(In thousands)
Number of common shares—basic	110,561	109,857	109,478
Effect of dilutive securities:
Stock options	761	708	640
Restricted stock awards	212	294	195
Number of common shares—diluted	111,534	110,859	110,313
Number of potentially dilutive securities excluded from calculation due to antidilutive impact	349	287	458

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.