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Employee Retirement and Profit Sharing Plans (Changes in plan assets and benefit obligations recognized in other comprehensive (loss) income) (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 30, 2019
Mar. 31, 2018
Employee Retirement and Profit Sharing Plans [Abstract]    
Net transition obligation $ 0 $ 0
Prior service cost 0 0
Net actuarial loss (382) (558)
Total $ (382) $ (558)