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Accrued Expenses and Other Current Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2012
Jan. 31, 2011
Accrued Expenses and Other Current Liabilities [Line Items]        
Gift certificates and merchandise credits $ 44,311 $ 36,687    
Accrued construction 20,939 15,030    
Sales return reserves 17,089 14,448 10,967 11,367
Accrued sales taxes 12,379 12,660    
Accrued rents and estimated property taxes 10,850 8,834    
Other current liabilities 48,141 32,382    
Total $ 153,709 $ 120,041