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Inventories - Continuity of Obsolescence Reserve from Continuing Operations for Inventory (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Mar. 25, 2017
Inventory Disclosure [Abstract]      
Beginning balance [1] $ 1,919 $ 1,781 $ 2,217
Additional charges 647 763 397
Deductions (671) (625) (833)
Ending balance $ 1,895 $ 1,919 [1] $ 1,781 [1]
[1] Recast (refer to note 1)