Income (Loss) Per Common Share (Computations Of Basic And Diluted Income (Loss) Per Share) (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
Numerator:
Net income	$ 42,004	$ 4,337	$ 7,061	$ 4,278	$ 57,680	$ 48,024	$ 32,142
Participating Securities, Distributed and Undistributed Earnings (Loss), Diluted					0	20	465
Net income attributable to common shareholders					$ 57,680	$ 48,004	$ 31,677
Denominator:
Weighted-average common shares outstanding - basic (shares)					54,513,622	54,219,801	53,294,805
Dilutive impact of options and warrants (shares)					279,679	354,054	447,055
Weighted average common share outstanding - diluted (shares)					54,793,301	54,573,855	53,741,860
Per common share:
Basic income (loss) per common share (dollars per share)					$ 1.06	$ 0.89	$ 0.59
Diluted income (loss) per common share (dollars per share)					$ 1.05	$ 0.88	$ 0.59