Segment Information (Schedule of Segment Revenue from Product Lines) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Segment Reporting Information [Line Items]
Net sales	$ 347,325	$ 388,912	$ 589,898	$ 627,165
Portable Products
Segment Reporting Information [Line Items]
Net sales	312,911	349,379	523,572	552,317
Non-Portable and Other Products
Segment Reporting Information [Line Items]
Net sales	$ 34,414	$ 39,533	$ 66,326	$ 74,848

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details