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Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Basic net income per share      
Net income, basic $ 422,599 $ 437,120 $ 410,395
Shares, basic 127,588 132,905 135,582
Per share amount, basic (in dollars per share) $ 3.31 $ 3.29 $ 3.03
Dilutive stock options and restricted stock units outstanding, income $ 0 $ 0 $ 0
Dilutive stock options and restricted stock units outstanding, shares 616 908 1,263
Dilutive stock options and restricted stock units outstanding, per share (in dollars per share) $ (0.01) $ (0.02) $ (0.03)
Diluted net income per share      
Shares, diluted 128,204 133,813 136,845
Diluted net income per share (in dollars per share) $ 3.30 $ 3.27 $ 3.00
Anitdilutive securities excluded from computation of earnings per share 3,900 1,900 900