Net Income Per Share (Schedule of Net Income Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 30, 2022	Jul. 31, 2021	Jul. 30, 2022	Jul. 31, 2021
Basic Net Income per Share:
Net income available for basic common shares and basic net income per share	$ 28,909	$ 44,212	$ 55,806	$ 87,454
Basic	27,590	28,323	27,784	28,290
Basic	$ 1.05	$ 1.56	$ 2.01	$ 3.09
Diluted Net Income per Share:
Net income	$ 28,909	$ 44,212	$ 55,806	$ 87,454
Conversion of stock-based compensation arrangements	0	0	0	0
Net income available for diluted common shares and diluted net income per share	$ 28,909	$ 44,212	$ 55,806	$ 87,454
Conversion of stock-based compensation arrangements	222	329	277	353
Net income available for diluted common shares and diluted net income per share	27,812	28,652	28,061	28,643
Net income available for diluted common shares and diluted net income per share	$ 1.04	$ 1.54	$ 1.99	$ 3.05