Revenue (Schedule of Revenue Disaggregation by Product Category) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2022	May 01, 2021
Disaggregation Of Revenue [Line Items]
Net sales	$ 317,527	$ 328,457
Sales Revenue Net | Geographic Concentration Risk
Disaggregation Of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%
Net sales	$ 317,527	$ 328,457
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	50.00%	43.00%
Net sales	$ 159,111	$ 143,106
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Women's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	28.00%	23.00%
Net sales	$ 88,554	$ 75,531
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Men's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	15.00%	13.00%
Net sales	$ 49,152	$ 44,282
Sales Revenue Net | Geographic Concentration Risk | Non-Athletics | Children's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	7.00%	7.00%
Net sales	$ 21,405	$ 23,293
Sales Revenue Net | Geographic Concentration Risk | Athletics
Disaggregation Of Revenue [Line Items]
Percentage of net sales	44.00%	51.00%
Net sales	$ 140,791	$ 166,897
Sales Revenue Net | Geographic Concentration Risk | Athletics | Women's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	16.00%	18.00%
Net sales	$ 51,034	$ 58,595
Sales Revenue Net | Geographic Concentration Risk | Athletics | Men's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	17.00%	20.00%
Net sales	$ 53,026	$ 65,724
Sales Revenue Net | Geographic Concentration Risk | Athletics | Children's
Disaggregation Of Revenue [Line Items]
Percentage of net sales	11.00%	13.00%
Net sales	$ 36,731	$ 42,578
Sales Revenue Net | Geographic Concentration Risk | Accessories
Disaggregation Of Revenue [Line Items]
Percentage of net sales	5.00%	5.00%
Net sales	$ 15,752	$ 16,627
Sales Revenue Net | Geographic Concentration Risk | Other
Disaggregation Of Revenue [Line Items]
Percentage of net sales	1.00%	1.00%
Net sales	$ 1,873	$ 1,827