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Condensed Statement of Stockholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 29, 2015
Dec. 30, 2014
Dec. 31, 2013
Condensed Consolidated Statement of Stockholders' Equity      
Dividends declared and paid per share (in dollars per share) $ 0.51 $ 0.45 $ 0.48
Dividends declared per share (in dollars per share) $ 0.17 $ 0.15