Restructuring and Headquarters Relocation Charges - Schedule of Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		29 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018
Restructuring Reserve [Roll Forward]
Credit to operations, net	$ 114	$ 464	$ 219	$ 6,749	$ 84,700
Employee severance and related benefits
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			1,736	35,177
Credit to operations, net			(395)	2,861
Cash disbursements			(1,120)	(28,060)
Other non-cash charges				0
Foreign exchange impact			22	(1,002)
Restructuring reserve, ending balance	243	8,976	243	8,976	243
Facility closures and related costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			4,508	1,431
Credit to operations, net			(339)	3,888
Cash disbursements			(806)	(880)
Other non-cash charges				(260)
Foreign exchange impact			(47)	(6)
Restructuring reserve, ending balance	3,316	4,173	3,316	4,173	3,316
Total 2016 Plan [Member]
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance			6,244	36,608
Credit to operations, net			(734)	6,749
Cash disbursements			(1,926)	(28,940)
Other non-cash charges				(260)
Foreign exchange impact			(25)	(1,008)
Restructuring reserve, ending balance	$ 3,559	$ 13,149	$ 3,559	$ 13,149	$ 3,559