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
3 Months Ended 6 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Long-term Purchase Commitment [Line Items]        
Total rent expense under operating leases $ 43,743 $ 38,941 $ 88,301 $ 77,480
Minimum [Member]        
Long-term Purchase Commitment [Line Items]        
Non-cancelable operating lease terms     3 years  
Maximum [Member]        
Long-term Purchase Commitment [Line Items]        
Non-cancelable operating lease terms     10 years