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Restructuring and Other Charges (Schedule of Restructuring Reserve) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Restructuring Reserve [Roll Forward]
Charges to operations, net	$ 26,980	$ 114	$ 45,473	$ 219
Other non-cash charges			4,812
Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Other non-cash charges			0
Facility closures and related costs
Restructuring Reserve [Roll Forward]
Other non-cash charges			4,812
2016 and 2019 Restructuring Plans; excluding headquarters restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			2,415
Charges to operations, net			42,971
Cash disbursements			(17,932)
Foreign exchange impact			(28)
Restructuring reserve, ending balance	32,238		32,238
2016 and 2019 Restructuring Plans; excluding headquarters restructuring [Member] \| Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			0
Charges to operations, net			16,034
Cash disbursements			(15,085)
Foreign exchange impact			6
Restructuring reserve, ending balance	955		955
2016 and 2019 Restructuring Plans; excluding headquarters restructuring [Member] \| Facility closures and related costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			2,415
Charges to operations, net			26,937
Cash disbursements			(2,847)
Foreign exchange impact			(34)
Restructuring reserve, ending balance	$ 31,283		31,283
Restructuring Plan 2019 [Member]
Restructuring Reserve [Roll Forward]
Charges to operations, net			16,000
Restructuring Plan 2016 [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				6,244
Charges to operations, net				(734)
Cash disbursements				(1,926)
Foreign exchange impact				(25)
Restructuring reserve, ending balance		3,559		3,559
Restructuring Plan 2016 [Member] \| Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance				1,736
Charges to operations, net				(395)
Cash disbursements				(1,120)
Foreign exchange impact				22
Restructuring reserve, ending balance		243		243
Restructuring Plan 2016 [Member] \| Facility closures and related costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			$ 2,400	4,508
Charges to operations, net				(339)
Cash disbursements				(806)
Foreign exchange impact				(47)
Restructuring reserve, ending balance		$ 3,316		$ 3,316