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Comprehensive Income (Tables)
6 Months Ended
Jan. 27, 2012
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]  
Comprehensive income
Comprehensive income consisted of the following at:
 
   
Quarter Ended
  
Six Months Ended
 
   
January 27,
2012
  
January 28,
2011
  
January 27,
2012
  
January 28,
2011
 
              
Net income
 $25,609  $28,777  $49,411  $52,511 
Other comprehensive income:
                
Changes in fair value of interest rate swaps, net of tax
  2,412   9,393   6,362   9,576 
Total comprehensive income
 $28,021  $38,170  $55,773  $62,087