Revolving Credit Facility - Additional Information (Detail) (Revolving Credit Facility, USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Line of Credit Facility [Line Items]
Revolving credit facility				$ 200
Revolving credit facility maturity date				Jan. 27, 2017
Credit facility, covenant description	The Company is not required to comply with any financial covenants as long as there are no outstanding borrowings. With regard to the payment of dividends and share repurchases, there are no restrictions if the Company is not borrowing and the payments are funded through cash on hand. If the Company is borrowing, Availability as of the end of each fiscal month during the subsequent projected six fiscal months following the payment must be at least 20 percent of the lesser of the Aggregate Commitments and the Borrowing Base (all terms as defined in the 2011 Restated Credit Agreement). The Company’s management does not currently expect to borrow under the facility in 2015, other than amounts used to support standby letters of credit in connection with insurance programs. The letters of credit outstanding as of January 31, 2015 were not significant.
Credit facility, availability percentage as the lesser of Aggregate Commitments and Borrowing Base	20.00%
Deferred financing fees, unamortized balance	1
Quarterly facility fees on unused portion of credit facility	0.25%	0.25%
Interest expense, net	1	1	1
Maximum
Line of Credit Facility [Line Items]
Incremental facility available for credit facility				$ 200
Revolving credit facility, interest rate margin above LIBOR				1.50%
Minimum
Line of Credit Facility [Line Items]
Revolving credit facility, interest rate margin above LIBOR				1.25%