Share-Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 4,802	$ 4,003	$ 8,862	$ 9,789
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	907	820	1,814	1,515
Stock awards/units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	3,837	3,135	6,910	8,061
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 58	$ 48	$ 138	$ 213