Share-Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019	Aug. 01, 2020	Aug. 03, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 4,003	$ 4,986	$ 9,789	$ 9,454
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	820	697	1,515	1,287
Stock awards/units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	3,135	4,205	8,061	8,020
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 48	$ 84	$ 213	$ 147