The Company - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Aug. 03, 2013 Store State	Aug. 03, 2013 Store State	Jul. 17, 2013	May 20, 2013	Feb. 02, 2013	Nov. 07, 2012	Aug. 14, 2013 Subsequent Event [Member]	Nov. 01, 2012 Reorganization [Member]
Organization [Line Items]
Number of retail stores	70	70
Number of outlet stores		17
Number of states	29	29
Common stock, shares outstanding	38,912,765	38,912,765			37,967,635			32,188,891
Common stock, shares issued	38,912,765	38,912,765	8,000,000	9,974,985	38,856,251	4,782,609
Common stock, per share	$ 24.00	$ 24.00	$ 70.00	$ 50.00		$ 24.00	$ 70.00
Common stock sold under initial public offering						381,723
Additional shares sold under initial public offering, over-allotment option						774,650
Additional shares sold under follow-on offering, over-allotment options				1,301,085			1,200,000
Amounts capitalized under build-to-suit transactions	$ 10,122	$ 10,122