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Earnings Per Share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share |
Earnings Per Share | Note 4. Earnings Per Share We calculate basic and diluted earnings per share (EPS) based on net income, which approximates income available to common shareholders for each period. Basic EPS is calculated using the two-class method, which includes the weighted-average number of common shares outstanding during the period and restricted stock units to be paid in stock that are deemed participating securities as they provide nonforfeitable rights to dividends. Diluted EPS considers the dilutive effect of all potential future common stock, including stock options. The weighted-average shares outstanding for basic and diluted EPS are as follows:
|  | Three Months Ended | Nine Months Ended
(In thousands) |  | September 30, 2017 | October 1, 2016 | September 30, 2017 | October 1, 2016
Basic weighted-average shares outstanding |  | 264,624 | 270,560 | 267,409 | 270,703
Dilutive effect of stock options |  | 2,365 | 1,539 | 2,325 | 1,348
Diluted weighted-average shares outstanding |  | 266,989 | 272,099 | 269,734 | 272,051
Stock options to purchase 1.5 million and 1.2 million shares of common stock are excluded from the calculation of diluted weighted-average shares outstanding for the three and nine months ended September 30, 2017, respectively, as their effect would have been anti-dilutive. Stock options to purchase 3.5 million and 3.6 million shares of common stock are excluded from the calculation of diluted weighted-average shares outstanding for both the three and nine months ended October 1, 2016, as their effect would have been anti-dilutive.

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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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