Stock-Based Compensation - Summary of Additional Information about Restricted Stock Awards (Detail) (Restricted Stock Awards [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013
Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value per share of awards granted	$ 65.37	$ 24.00
Grant date fair value of awards released	$ 760	$ 975