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Segment Information (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 27, 2017
USD ($)
Jan. 29, 2016
USD ($)
Jan. 27, 2017
USD ($)
Line
Segment
Jan. 29, 2016
USD ($)
Segment Information [Abstract]        
Number of product lines | Line     2  
Number of reportable operating segments | Segment     1  
Revenue from External Customer [Line Items]        
Revenue $ 772,682 $ 764,002 $ 1,482,653 $ 1,466,631
Restaurant [Member]        
Revenue from External Customer [Line Items]        
Revenue 591,113 580,918 1,164,790 1,143,197
Retail [Member]        
Revenue from External Customer [Line Items]        
Revenue $ 181,569 $ 183,084 $ 317,863 $ 323,434