Employee Benefit Plans - Additional Information (Detail)	12 Months Ended
Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Employee Benefit Plans [Line Items]
Employer's contribution to 401(k) plan	0.00%	0.00%	0.00%
Maximum [Member]
Employee Benefit Plans [Line Items]
Employee's contribution to 401(k) plan	50.00%

Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan.

No definition available.

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration