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Long-term debt - Summary of Principal Payment on Long Term Debt Including Obligation Under Capital Lease (Detail) - USD ($)
$ in Thousands
Mar. 30, 2019
Mar. 31, 2018
[1]
Debt Disclosure [Abstract]    
2020 $ 993  
2021 1,421  
2022 118  
2023 12,567  
Thereafter 2,005  
Long-term debt and Capital lease obligations $ 17,104 $ 8,210
[1] Recast (refer to note 1)