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Earnings Per Share - Additional Information (Detail)
3 Months Ended 6 Months Ended
Aug. 03, 2013
Aug. 03, 2013
Options [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Options and restricted stock units were excluded from calculation of diluted net loss per share 9,362,066 9,362,066
Restricted stock [Member]
   
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Options and restricted stock units were excluded from calculation of diluted net loss per share 70,697 70,697