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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Apr. 23, 2016
Apr. 25, 2015
Apr. 23, 2016
Apr. 25, 2015
Income Statement [Abstract]        
Stock-based compensation $ 3,892 $ 3,219 $ 12,600 $ 10,773