Summary of Significant Accounting Policies (Components of Property, Plant and Equipment) (Details) - USD ($) $ in Thousands	Mar. 27, 2021	Mar. 28, 2020
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 350,932	$ 348,275
Less: Accumulated depreciation and amortization	(195,990)	(190,031)
Property, plant and equipment, net	154,942	158,244
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	23,853	23,853
Buildings
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	63,803	63,803
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	23,733	23,059
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	52,041	51,525
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	160,400	159,201
Capitalized software
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	26,152	25,942
Construction in progress and other
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 950	$ 892