Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Reclassification from AOCI) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service cost (credit)	$ (285)	$ (346)
Transition obligation	0	361
Actuarial losses	18,634	29,412
Reclassification from AOCI into earnings - Retirement liability	18,349	29,427
Tax effect - Retirement liability	(6,414)	(10,972)
Net reclassification from AOCI into earnings - expense (income) - Retirement Liability	11,935	18,455
Reclassification from AOCI into earnings - Derivatives	2,214	(217)
Tax effect - Derivatives	(910)	72
Net reclassification from AOCI into earnings - Derivatives	1,304	(145)
Foreign Exchange Contract [Member] | Sales [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives Gain (Loss) Reclassified from AOCI into earnings	(192)	(23)
Foreign Exchange Contract [Member] | Cost of Sales [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives Gain (Loss) Reclassified from AOCI into earnings	1,751	(361)
Interest Rate Swaps [Member] | Interest Expense [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivatives Gain (Loss) Reclassified from AOCI into earnings	$ 655	$ 167