Restructuring and Other Charges (Schedule of Restructuring Reserve) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Oct. 01, 2019	Mar. 28, 2020	Mar. 30, 2019	Mar. 28, 2020	Mar. 30, 2019
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 31,086			$ 31,086	$ 2,415
Charges to operations, net		$ 13,200	$ 26,400	26,996	42,971
Cash disbursements				(16,819)	(17,932)
Foreign exchange impact				148	28
Restructuring reserve, ending balance		24,668	32,238	24,668	32,238
Restructuring Reserve, Settled without Cash				(281)	4,812
Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	298			298	0
Charges to operations, net				31,358	16,034
Cash disbursements				(14,324)	(15,085)
Foreign exchange impact				153	(6)
Restructuring reserve, ending balance		17,485	955	17,485	955
Restructuring Reserve, Settled without Cash				0	0
Facility closures and related costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	30,788			30,788	2,415
Charges to operations, net				(4,362)	26,937
Cash disbursements				(2,495)	(2,847)
Foreign exchange impact				(5)	34
Restructuring reserve, ending balance		7,183	$ 31,283	7,183	31,283
Restructuring Reserve, Settled without Cash				(281)	4,812
Restructuring Plan 2019 [Member] | Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Charges to operations, net		$ (100)			$ 16,300
Accounting Standards Update 2016-02 | Employee severance and related benefits
Restructuring Reserve [Roll Forward]
ASC 842 adoption				0
Accounting Standards Update 2016-02 | Facility closures and related costs
Restructuring Reserve [Roll Forward]
ASC 842 adoption	$ (16,500)			$ (16,462)