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Revenue Recognition - Additional Information (Detail) - USD ($)
12 Months Ended
Mar. 28, 2020
Mar. 30, 2019
Disaggregation of Revenue [Line Items]    
Uncollected billings related to long-term construction contracts $ 1,000,000.0 $ 900,000
Unbilled revenue for long-term contracts $ 0 $ 0
Minimum [Member]    
Disaggregation of Revenue [Line Items]    
Number of business days for the receipt of floor plan payment 5 days  
Maximum [Member]    
Disaggregation of Revenue [Line Items]    
Number of business days for the receipt of floor plan payment 10 days