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Consolidated Statement of Stockholders' Equity (Parenthetical) - $ / shares
12 Months Ended
Dec. 26, 2017
Dec. 27, 2016
Dec. 29, 2015
Consolidated Statement of Stockholders' Equity      
Dividends declared and paid per share (in dollars per share) $ 0.63 $ 0.57 $ 0.51
Dividends declared per share (in dollars per share) $ 0.21 $ 0.19 $ 0.17