Accumulated Other Comprehensive Income (Changes in AOCI by Component) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated foreign currency translation	$ (72,788)	$ 9,254	$ 40,572
Other comprehensive income (loss), before reclassifications - Foreign currency translation	(82,042)	(31,318)
Amounts reclassified from AOCI - Foreign currency translation	0	0
Other comprehensive income (loss) - Foreign currency translation	(82,042)	(31,318)	7,079
Accumulated retirement liability	(266,910)	(214,984)	(173,695)
Other comprehensive income (loss) before reclassification - Retirement liability	(67,432)	(52,275)
Amounts reclassified from AOCI - Retirement liability	15,506	10,986
Other comprehensive income (loss) - Retirement liability	(51,926)	(41,289)	106,729
Accumulated gain (loss) on derivatives	(2,037)	(1,108)	(1,035)
Other comprehensive income (loss) before reclassification - Derivatives	(2,848)	(1,377)
Amounts reclassified from AOCI - Derivatives	1,919	1,304
Other comprehensive income (loss) - Derivatives	(929)	(73)	(1,255)
Accumulated other comprehensive loss	(341,735)	(206,838)	$ (134,158)
Other comprehensive income (loss) before reclassifications - Total	(152,322)	(84,970)
Amounts reclassified from AOCI - Total	17,425	12,290
Other comprehensive income (loss) - Total	$ (134,897)	$ (72,680)