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Impairment of Long-Lived Assets - Additional Information (Detail) (USD $)
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Asset Impairments Exit Costs And Other Charges [Line Items]      
Impairment Charges $ 11,539,000 $ 1,735,000 $ 2,080,000
Impaired Assets fair value 9,944,000    
Asset Impairment
     
Asset Impairments Exit Costs And Other Charges [Line Items]      
Impairment of store level assets, number of stores 19 7 9
Impaired Assets fair value $ 0 $ 0