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Concentration of Credit Risk, Major Customers and Suppliers (Details) - Finished goods - Supplier Concentration Risk
12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Apr. 01, 2017
Contractor      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 21.00% 26.00% 33.00%
Agent      
Concentration Risk [Line Items]      
Concentration risk (as a percent) 24.00% 24.00% 22.00%