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Income 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, 2021	Oct. 31, 2020	Aug. 01, 2020	May 02, 2020	Feb. 01, 2020	Nov. 02, 2019	Aug. 03, 2019	May 04, 2019	Jan. 30, 2021	Feb. 01, 2020	Feb. 02, 2019
Numerator:
Net income	$ 123,937	$ 20,425	$ 29,581	$ (50,582)	$ 110,374	$ 10,189	$ 28,831	$ 25,662	$ 123,361	$ 175,056	$ 149,645
Denominator:
Weighted-average common shares outstanding - basic (shares)									55,816,508	55,823,535	55,763,034
Dilutive impact of options and warrants (shares)									243,531	342,632	457,830
Weighted average common share outstanding - diluted (shares)									56,060,039	56,166,167	56,220,864
Per common share:
Basic income (loss) per common share (dollars per share)	$ 2.22	$ 0.37	$ 0.53	$ (0.91)	$ 1.98	$ 0.18	$ 0.52	$ 0.46	$ 2.21	$ 3.14	$ 2.68
Diluted income (loss) per common share (dollars per share)	$ 2.20	$ 0.36	$ 0.53	$ (0.91)	$ 1.97	$ 0.18	$ 0.51	$ 0.46	$ 2.20	$ 3.12	$ 2.66

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