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Nature of Business - Additional Information (Detail)
 12 Months Ended
Jan. 31, 2013
Store
Jan. 31, 2012
Store
Nature Of Business [Line Items]    
Number of websites used for sales 10 10
Number of catalogs used for sales 5 5
Number of stores for operations 476 429
Number of department and specialty retailers distributed and sold apparel to 1,400  
United States
    
Nature Of Business [Line Items]    
Number of stores for operations 415 381
Europe
    
Nature Of Business [Line Items]    
Number of stores for operations 38 33
Canada
    
Nature Of Business [Line Items]    
Number of stores for operations 23 15