Restructuring and Cost Management Plans Q4 FY17 Restructuring Plan Expected Costs (Details) - Q4 FY17 Restructuring Plan [Member] - USD ($) $ in Thousands		6 Months Ended		9 Months Ended		12 Months Ended
		Jul. 01, 2017		Dec. 29, 2018		Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				$ 24,660
Restructuring and Related Cost, Incurred Cost		$ 24,660		0		$ 17,074
Restructuring and Related Cost, Expected Cost Remaining				0
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				4,925
Restructuring and Related Cost, Incurred Cost		4,925		0		1,337
Restructuring and Related Cost, Expected Cost Remaining				0
Site Closures [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				1,516
Restructuring and Related Cost, Incurred Cost		1,516		0		627
Restructuring and Related Cost, Expected Cost Remaining				0
Current Asset Impairments and Other Gross Profit [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	[1]			14,947
Restructuring and Related Cost, Incurred Cost		14,947	[1]	0	[2]	13,278	[2]
Restructuring and Related Cost, Expected Cost Remaining	[1]			0
Non-Current Asset Impairments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				3,033
Restructuring and Related Cost, Incurred Cost		3,033		0		1,657
Restructuring and Related Cost, Expected Cost Remaining				0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost				239
Restructuring and Related Cost, Incurred Cost		$ 239		0		$ 175
Restructuring and Related Cost, Expected Cost Remaining				$ 0

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

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