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Net Income Per Share (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Basic net income per share [Abstract]      
Net income, basic $ 328,234 $ 276,457 $ 222,740
Shares, basic 139,415,000 142,184,000 143,554,000
Per share amount, basic (in dollars per share) $ 2.35 $ 1.94 $ 1.55
Dilutive stock options and restricted stock units outstanding, income $ 0 $ 0 $ 0
Dilutive stock options and restricted stock units outstanding, shares 2,308,000 3,330,000 4,288,000
Dilutive stock options and restricted stock units outstanding, per share (in dollars per share) $ (0.03) $ (0.04) $ (0.04)
Diluted net income per share [Abstract]      
Shares, diluted 141,723,000 145,514,000 147,842,000
Diluted net income per share (in dollars per share) $ 2.32 $ 1.90 $ 1.51
Anitdilutive securities excluded from computation of earnings per share 600,000 1,000,000 600,000