Summary of Significant Accounting Policies and Concentrations of Risk (PPE) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 30, 2013
Property, Plant and Equipment [Line Items]
Depreciation	$ 55,266	$ 55,464	$ 56,327
Machinery, Equipment, Furniture And Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life	3 years
Machinery, Equipment, Furniture And Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life	5 years
Buildings [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life	15 years
Buildings [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life	30 years