Quarterly Results of Operations and Seasonality (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				12 Months Ended
	Jan. 30, 2016	Oct. 31, 2015	Aug. 01, 2015	May. 02, 2015	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 326,351	$ 169,685	$ 182,191	$ 153,727	$ 831,954	$ 680,218	$ 535,402
Gross profit	132,182	52,765	59,826	47,161	291,934	237,791	188,016
Net income	$ 42,004	$ 4,337	$ 7,061	$ 4,278	$ 57,680	$ 48,024	$ 32,142
Basic (loss) income per common share (dollars per share)					$ 1.06	$ 0.89	$ 0.59
Diluted (loss) income per common share (dollars per share)					$ 1.05	$ 0.88	$ 0.59