Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

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Commitments and Contingencies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Commitments And Contingencies Disclosure [Abstract]        
Non-cancelable operating lease terms, minimum     3 years  
Non-cancelable operating lease terms, maximum     10 years  
Total rent expense under operating leases $ 33,930 $ 27,640 $ 65,940 $ 53,708