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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jul. 28, 2012
Year
Jul. 30, 2011
Jul. 31, 2010
Goodwill and Intangible Assets Disclosure [Line Items]      
Recognized amortization expense on other intangible assets $ 1.2 $ 1.4 $ 1.2
Intangible assets, weighted-average amortization period 4    
Proprietary Technology
     
Goodwill and Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted-average amortization period 6    
Customer Relationships
     
Goodwill and Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted-average amortization period 3    
Finite-lived trade names
     
Goodwill and Intangible Assets Disclosure [Line Items]      
Intangible assets, weighted-average amortization period 3    
Maurices
     
Goodwill and Intangible Assets Disclosure [Line Items]      
Impairment Charge on goodwill and Indefinite-lived Intangible Assets     $ 2.0