Revenue (Schedule of Revenue Disaggregation by Product Category) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 29, 2023	Jul. 30, 2022
Disaggregation Of Revenue [Line Items]
Net sales	$ 294,615	$ 312,268	$ 575,799	$ 629,795
Sales Revenue Net | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%	100.00%	100.00%
Net sales	$ 294,615	$ 312,268	$ 575,799	$ 629,795
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	53.00%	55.00%	52.00%	53.00%
Net sales	$ 156,715	$ 171,937	$ 299,447	$ 331,054
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Women's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	28.00%	30.00%	28.00%	29.00%
Net sales	$ 82,747	$ 94,013	$ 160,505	$ 182,569
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Men's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	17.00%	18.00%	16.00%	17.00%
Net sales	$ 51,650	$ 55,102	$ 95,096	$ 104,254
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Children's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	8.00%	7.00%	8.00%	7.00%
Net sales	$ 22,318	$ 22,822	$ 43,846	$ 44,231
Sales Revenue Net | Geographic Concentration Risk | Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	42.00%	40.00%	43.00%	41.00%
Net sales	$ 121,707	$ 122,264	$ 244,560	$ 263,052
Sales Revenue Net | Geographic Concentration Risk | Athletics | Women's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	14.00%	13.00%	15.00%	14.00%
Net sales	$ 40,598	$ 40,511	$ 83,386	$ 91,545
Sales Revenue Net | Geographic Concentration Risk | Athletics | Men's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	17.00%	17.00%	17.00%	16.00%
Net sales	$ 49,096	$ 50,776	$ 97,132	$ 103,802
Sales Revenue Net | Geographic Concentration Risk | Athletics | Children's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	11.00%	10.00%	11.00%	11.00%
Net sales	$ 32,013	$ 30,977	$ 64,042	$ 67,705
Sales Revenue Net | Geographic Concentration Risk | Accessories
Disaggregation Of Revenue [Line Items]
Percentage of net sales	5.00%	5.00%	5.00%	5.00%
Net sales	$ 14,881	$ 16,664	$ 29,429	$ 32,414
Sales Revenue Net | Geographic Concentration Risk | Other
Disaggregation Of Revenue [Line Items]
Percentage of net sales	0.00%	0.00%	0.00%	1.00%
Net sales	$ 1,312	$ 1,403	$ 2,363	$ 3,275