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Earnings Per Share and Certain Related Information (Details) - USD ($) $ / shares in Units, shares in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 23, 2015 | Mar. 31, 2017 | Apr. 01, 2016 | Mar. 31, 2017 | Apr. 01, 2016
Diluted: |  |  |  |  |
Basic weighted average shares outstanding |  | 119,484 | 120,216 | 119,416 | 120,554
Dilutive potential common shares |  | 2,230 | 927 | 2,385 | 1,000
Diluted weighted average shares outstanding |  | 121,714 | 121,143 | 121,801 | 121,554
Antidilutive stock options and restricted stock |  | 120 | 3,714 | 148 | 3,651
Shares of common stock issued from the exercise of stock options and the release of restricted stock |  | 281 | 228 | 1,367 | 515
Share Repurchases |  |  |  |  |
Amount authorized to be repurchased | $ 500,000,000 |  |  |  |
Average cost per share repurchased ($ per share) | $ 48.15 |  |  |  |
Number of shares repurchased (in shares) | 4,854 |  |  |  |

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