Shareholders' Equity (Changes in AOCI by Component) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013	Sep. 28, 2013
Stockholders' Equity Note [Abstract]
Accumulated foreign currency translation	$ 45,166		$ 45,166		$ 40,572
Other comprehensive income (loss) before reclassifications - Foreign currency translation			4,594
Amounts reclassified from AOCI - Foreign currency translation			0
Other comprehensive income (loss) - Foreign currency translation			4,594
Accumulated retirement liability	(168,594)		(168,594)		(173,695)
Other comprehensive income (loss) before reclassifications - Retirement liability			0
Amounts reclassified from AOCI - Retirement liability	2,681	5,582	5,101	10,101
Other comprehensive income (loss) retirement liability	2,681	5,582	5,101	10,101
Accumulated loss on derivatives	(1,619)		(1,619)		(1,035)
Other comprehensive income(loss) before reclassification - Derivatives	(467)	(345)	(1,079)	97
Amounts reclassified from AOCI - Derivatives	413	(125)	495	(245)
Other comprehensive income (loss) - Derivatives	(54)	(470)	(584)	(148)
Accumulated other comprehensive loss	(125,047)		(125,047)		(134,158)
Other comprehensive income (loss) before reclassifications - Total			3,515
Amounts reclassified from AOCI - Total			5,596
Other comprehensive income (loss) - Total	$ 1,287	$ (17,916)	$ 9,111	$ (6,901)