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Revenues (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2018
Jun. 24, 2017
Disaggregation of Revenue [Line Items]    
Net sales $ 254,483 $ 320,735
Product warranty, term 1 year  
Non-United States    
Disaggregation of Revenue [Line Items]    
Net sales $ 246,076 312,887
United States    
Disaggregation of Revenue [Line Items]    
Net sales $ 8,407 $ 7,848