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Components of Assets And Liabilities Related to Discontinued Operations (Detail) (USD $)
In Millions, unless otherwise specified
Jul. 28, 2012
Jul. 30, 2011
Components Of Discontinued Operations [Line Items]    
Accounts receivable $ 37.9 $ 24.3
Inventory 533.4 365.3
Property and equipment, net 674.2 489.0
Intangible assets, net 453.7 184.2
Other assets 42.6 33.1
Total assets 2,807.1 1,839.6
Lease-related liabilities 240.5 169.2
Total liabilities 1,466.2 681.6
Fashion Bug business
   
Components Of Discontinued Operations [Line Items]    
Accounts receivable 6.8  
Inventory 77.2  
Property and equipment, net 31.9  
Intangible assets, net 5.0  
Other assets 12.7  
Total assets 133.6  
Accounts payable and accrued expenses 93.6  
Lease-related liabilities 18.0  
Other liabilities 7.0  
Total liabilities $ 118.6