Restructuring and Cost Management Plans Q4 FY17 Plan Accrual Reconciliation (Details) - USD ($) $ in Thousands		12 Months Ended				15 Months Ended
		Mar. 31, 2018		Apr. 01, 2017		Mar. 31, 2018		Apr. 02, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		$ 429		$ 4,996		$ 429
Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		139		4,135		139		$ 0
Restructuring and Related Cost, Incurred Cost		(17,074)		(7,587)		(24,660)
Cash Payments for Restructuring		(8,505)		(407)
Non-cash items		(12,565)		(3,045)
Employee Severance [Member] | Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		139		3,247		139		0
Restructuring and Related Cost, Incurred Cost		(1,337)		(3,588)		(4,925)
Cash Payments for Restructuring		(4,445)		(341)
Non-cash items		0		0
Site Closures [Member] | Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		888		0		0
Restructuring and Related Cost, Incurred Cost		(627)		(888)		(1,516)
Cash Payments for Restructuring		(1,515)		0
Non-cash items		0		0
Current Asset Impairments [Member] | Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	[1]	0		0		0		0
Restructuring and Related Cost, Incurred Cost		(13,278)	[1]	(1,669)	[1]	(14,947)	[2]
Cash Payments for Restructuring	[1]	(2,402)		0
Non-cash items	[1]	(10,876)		(1,669)
Non-Current Asset Impairment [Member] | Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		0		0		0
Restructuring and Related Cost, Incurred Cost		(1,657)		(1,376)		(3,033)
Cash Payments for Restructuring				0
Cash Receipts For Restructuring		32
Non-cash items		(1,689)		(1,376)
Other Restructuring [Member] | Q4 FY17 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		0		0		$ 0
Restructuring and Related Cost, Incurred Cost		(175)		(66)		$ (239)
Cash Payments for Restructuring		(175)		(66)
Non-cash items		$ 0		$ 0

[1] (1) Asset and facilities costs include inventory charges recorded in cost of sales.

[2] (1) Current asset impairments include inventory charges recorded in cost of sales.