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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Apr. 01, 2017
Goodwill And Intangible Assets Disclosure [Abstract]      
Goodwill $ 173,406 $ 3,179  
Finite-lived intangibles, customer relationships 43,200    
Finite-lived intangibles, trade names 9,000    
Amortization expense $ 4,820 $ 487 $ 442