Restructuring Charges (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		20 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			$ 36,608	$ 15,254
Charge to operations, net	$ 1,551	$ 2,815	8,300	44,541	$ 85,500
Cash disbursements			(35,330)	(49,893)
Other non-cash charges			(704)
Foreign exchange impact			(702)	92
Restructuring reserve, ending balance	8,172	9,994	8,172	9,994	8,172
Employee severance and related benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			35,177	14,086
Charge to operations, net			2,582	44,010
Cash disbursements			(33,979)	(49,059)
Other non-cash charges			0
Foreign exchange impact			(800)	103
Restructuring reserve, ending balance	2,980	9,140	2,980	9,140	2,980
Facility closures and related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, beginning balance			1,431	1,168
Charge to operations, net	1,800		5,718	531
Cash disbursements			(1,351)	(834)
Other non-cash charges			(704)
Foreign exchange impact			98	(11)
Restructuring reserve, ending balance	5,192	$ 854	5,192	$ 854	$ 5,192
Q116 plan [Domain]
Restructuring Cost and Reserve [Line Items]
Charge to operations, net	$ 1,600		$ 8,300