Summary of Significant Accounting Policies - Disaggregated Revenue (Details)	12 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Mar. 31, 2018
Disaggregation Of Revenue
Net sales percentage	100.00%	100.00%	100.00%
Stores
Disaggregation Of Revenue
Net sales percentage	84.00%	83.00%	83.00%
E-commerce
Disaggregation Of Revenue
Net sales percentage	16.00%	17.00%	17.00%
Footwear
Disaggregation Of Revenue
Net sales percentage	51.00%	52.00%	53.00%
Apparel
Disaggregation Of Revenue
Net sales percentage	34.00%	34.00%	32.00%
Hats, accessories and other
Disaggregation Of Revenue
Net sales percentage	15.00%	14.00%	15.00%