Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 27, 2020	Jun. 29, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 242,573	$ 238,253
Non-United States
Disaggregation of Revenue [Line Items]
Net sales	238,497	234,042
United States
Disaggregation of Revenue [Line Items]
Net sales	$ 4,076	$ 4,211
Minimum
Disaggregation of Revenue [Line Items]
Product warranty, term	1 year
Maximum
Disaggregation of Revenue [Line Items]
Product warranty, term	3 years