Revenue (Schedule of Revenue Disaggregation by Product Category) (Details) - USD ($) $ in Thousands	3 Months Ended
	May 04, 2019	May 05, 2018
Disaggregation Of Revenue [Line Items]
Net sales	$ 253,810	$ 257,445
Non-Athletics [Member]
Disaggregation Of Revenue [Line Items]
Net sales	108,662	106,394
Non-Athletics [Member] | Women' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	60,431	60,642
Non-Athletics [Member] | Men' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	35,863	33,949
Non-Athletics [Member] | Children' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	12,368	11,803
Athletics [Member]
Disaggregation Of Revenue [Line Items]
Net sales	133,809	140,009
Athletics [Member] | Women' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	49,687	52,350
Athletics [Member] | Men' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	53,304	55,621
Athletics [Member] | Children' s [Member]
Disaggregation Of Revenue [Line Items]
Net sales	30,818	32,038
Accessories [Member]
Disaggregation Of Revenue [Line Items]
Net sales	10,543	10,357
Other [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 796	$ 685
Sales Revenue Net [Member] | Geographic Concentration Risk [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	100.00%	100.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Non-Athletics [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	43.00%	42.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Non-Athletics [Member] | Women' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	24.00%	24.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Non-Athletics [Member] | Men' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	14.00%	13.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Non-Athletics [Member] | Children' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	5.00%	5.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Athletics [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	53.00%	54.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Athletics [Member] | Women' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	20.00%	20.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Athletics [Member] | Men' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	21.00%	22.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Athletics [Member] | Children' s [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	12.00%	12.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Accessories [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	4.00%	4.00%
Sales Revenue Net [Member] | Geographic Concentration Risk [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Percentage of net sales	0.00%	0.00%