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Condensed Consolidated Statement of Stockholders' Equity (Parenthetical) - $ / shares
3 Months Ended 6 Months Ended
Jun. 25, 2019
Jun. 26, 2018
Jun. 25, 2019
Jun. 26, 2018
Consolidated Statement of Stockholders' Equity        
Dividends declared (in dollars per share) $ 0.30 $ 0.25 $ 0.60 $ 0.50