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Debt and Floor Plan Payable - Summary of Long Term Debt (Detail) - USD ($)
$ in Thousands
Mar. 30, 2019
Mar. 31, 2018
Debt Instrument [Line Items]    
Long term debt $ 54,330 $ 59,331
Less current portion   404
Total long-term debt 54,330 58,927
Revolving Credit Facility Maturing in 2023 [Member]    
Debt Instrument [Line Items]    
Long term debt 41,900  
Obligations Under Industrial Revenue Bonds Due 2029 [Member]    
Debt Instrument [Line Items]    
Long term debt $ 12,430 12,430
Other Debt [Member]    
Debt Instrument [Line Items]    
Long term debt   4
Term Loans Due March 2020 [Member]    
Debt Instrument [Line Items]    
Long term debt   $ 46,897