Net Income/(Loss) Per Share (Schedule of Net Income/(Loss) Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020
Basic Net Income/(Loss) per Share:
Net income/(loss) available for basic common shares and basic net income/(loss) per share	$ 46,836	$ 14,678	$ 134,290	$ 8,548
Basic	28,192	28,180	28,257	28,113
Basic	$ 1.66	$ 0.52	$ 4.75	$ 0.30
Diluted Net Income/(Loss) per Share:
Net income/(loss)	$ 46,836	$ 14,678	$ 134,290	$ 8,548
Conversion of stock-based compensation arrangements	0	0	0	0
Net income/(loss) available for diluted common shares and diluted net income/(loss) per share	$ 46,836	$ 14,678	$ 134,290	$ 8,548
Conversion of stock-based compensation arrangements	355	353	350	337
Net income/(loss) available for diluted common shares and diluted net income/(loss) per share	28,547	28,533	28,607	28,450
Net income/(loss) available for diluted common shares and diluted net income/(loss) per share	$ 1.64	$ 0.51	$ 4.69	$ 0.30