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CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Apr. 26, 2014
Apr. 27, 2013
Apr. 26, 2014
Apr. 27, 2013
EXPENSES:        
General and administrative, stock based compensation expense $ 2.7 $ 2.5 $ 9.7 $ 7.3