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Product Warranty (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Dec. 29, 2018
Dec. 30, 2017
Product Warranty        
Standard and Extended Product Warranty Accrual $ 9,223 $ 7,156 $ 10,220 $ 5,474
Warranty charges incurred, net (2,683) (3,273) (7,026) (8,384)
Standard and Extended Product Warranty Accrual, Increase (Decrease) for Preexisting Warranties 1,975      
Provision for warranty charges   5,067 5,321 11,860
Standard and Extended Product Warranty Accrual 8,515 8,950 8,515 8,950
Product Warranty Accrual, Noncurrent $ 3,100 $ 4,500 $ 3,100 $ 4,500
Document Period End Date     Dec. 29, 2018