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Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 03, 2015	Sep. 30, 2014	Dec. 28, 2013
Restructuring Reserve [Roll Forward]
October 1, 2014	$ 26,370us-gaap_RestructuringReserve
Credit to operations	(255)us-gaap_RestructuringCharges	26,800us-gaap_RestructuringCharges	1,067us-gaap_RestructuringCharges
Cash disbursements	(17,327)us-gaap_PaymentsForRestructuring
Foreign exchange impact	(313)
Accrual, January 3, 2015	8,475us-gaap_RestructuringReserve	26,370us-gaap_RestructuringReserve
Employee Severance and Related Benefits
Restructuring Reserve [Roll Forward]
October 1, 2014	25,835
Credit to operations	(255)
Cash disbursements	(17,192)
Foreign exchange impact	(308)
Accrual, January 3, 2015	8,080
Facility Closures and Related Costs
Restructuring Reserve [Roll Forward]
October 1, 2014	535
Credit to operations	0
Cash disbursements	(135)
Foreign exchange impact	(5)
Accrual, January 3, 2015	$ 395