Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Fiscal Year
Length of fiscal year	371 days	364 days	364 days
Insurance Liabilities
Self-insured retention or deductible amount per claim for workers' compensation	$ 250,000
Self-insured retention or deductible amount per claim for employee medical	$ 65,000
Computer equipment | Minimum
Property and Equipment, net
Estimated useful lives	3 years
Computer equipment | Maximum
Property and Equipment, net
Estimated useful lives	5 years
Furniture, fixtures and equipment | Minimum
Property and Equipment, net
Estimated useful lives	3 years
Furniture, fixtures and equipment | Maximum
Property and Equipment, net
Estimated useful lives	5 years
Leasehold improvements
Property and Equipment, net
Estimated useful lives	5 years
Purchased software systems
Property and Equipment, net
Estimated useful lives	7 years
Buildings and building improvements | Minimum
Property and Equipment, net
Estimated useful lives	15 years
Buildings and building improvements | Maximum
Property and Equipment, net
Estimated useful lives	20 years