Revenue (Schedule of Revenue Disaggregation by Product Category) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Disaggregation Of Revenue [Line Items]
Net sales	$ 1,262,235	$ 1,330,394	$ 976,765
Sales Revenue Net | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%	100.00%
Net sales	$ 1,262,235	$ 1,330,394	$ 976,765
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	52.00%	44.00%	41.00%
Net sales	$ 650,052	$ 594,364	$ 399,858
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Women' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	28.00%	24.00%	22.00%
Net sales	$ 348,632	$ 317,144	$ 213,095
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Men' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	17.00%	14.00%	14.00%
Net sales	$ 208,756	$ 189,294	$ 132,057
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Children' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	7.00%	6.00%	5.00%
Net sales	$ 92,664	$ 87,926	$ 54,706
Sales Revenue Net | Geographic Concentration Risk | Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	42.00%	50.00%	53.00%
Net sales	$ 536,736	$ 660,297	$ 520,402
Sales Revenue Net | Geographic Concentration Risk | Athletics | Women' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	14.00%	16.00%	18.00%
Net sales	$ 181,348	$ 212,669	$ 180,664
Sales Revenue Net | Geographic Concentration Risk | Athletics | Men' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	16.00%	20.00%	22.00%
Net sales	$ 204,766	$ 264,417	$ 214,010
Sales Revenue Net | Geographic Concentration Risk | Athletics | Children' s
Disaggregation Of Revenue [Line Items]
Percentage of net sales	12.00%	14.00%	13.00%
Net sales	$ 150,622	$ 183,211	$ 125,728
Sales Revenue Net | Geographic Concentration Risk | Accessories
Disaggregation Of Revenue [Line Items]
Percentage of net sales	5.00%	5.00%	5.00%
Net sales	$ 68,757	$ 67,168	$ 48,282
Sales Revenue Net | Geographic Concentration Risk | Other
Disaggregation Of Revenue [Line Items]
Percentage of net sales	1.00%	1.00%	1.00%
Net sales	$ 6,690	$ 8,565	$ 8,223