v2.4.0.6
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
Share data in Millions, unless otherwise specified
3 Months Ended 12 Months Ended 12 Months Ended
Jan. 27, 2010
Jul. 28, 2012
Jul. 30, 2011
Jul. 31, 2010
Jul. 25, 2009
65%-owned investment
Jul. 28, 2012
Minimum
Jul. 28, 2012
Maximum
Significant Accounting Policies [Line Items]              
Shipping and handling costs   $ 17,900,000 $ 12,100,000 $ 4,400,000      
Marketing and advertising expenses   81,500,000 69,600,000 50,300,000      
Shares issued upon debt extinguishment 12.4            
Anti-dilutive options and/or contingent vesting of performance-based and market-based restricted stock units that were excluded from diluted share calculations   1.3 3.6 3.6      
Accrued insurance reserves   19,300,000 14,800,000        
Insurance coverage           200,000 500,000
Non-controlling interest, percentage         65.00%    
Non-controlling interest         700,000    
Losses allocated to non-controlling interest     $ 200,000