Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Additional Information (Detail)

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Employee Benefit Plans - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Jan. 29, 2011
Retirement Plans [Line Items]      
Company match 100.00% 100.00% 100.00%
Eligible compensation 3.00% 2.50% 2.00%
Company match amount $ 3,040 $ 2,146 $ 1,106
Deferred compensation liability included in other long term liability 2,876    
Investment included in Deferred compensation plan assets 2,866    
Deferred compensation plan liability included in accrued liabilities   1,855  
Deferred compensation plan asset included in prepaid expenses and other current assets   $ 1,968