Accumulated Other Comprehensive Income (Loss) (Reclassification from AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Prior service cost (credit)	$ (75)	$ (86)	$ (151)	$ (171)
Actuarial losses	5,925	7,423	11,853	14,819
Reclassification from AOCIL into earnings - Retirement liability	5,850	7,337	11,702	14,648
Tax effect - Retirement liability	(1,446)	(1,796)	(2,893)	(4,488)
Net reclassification from AOCIL into earnings - Retirement liability	4,404	5,541	8,809	10,160
Reclassification from AOCIL into earnings - Derivatives	(149)	262	78	826
Tax effect - Derivatives	35	(72)	(22)	(307)
Net reclassification from AOCIL into earnings - Derivatives	(114)	190	56	519
Foreign Currency Contracts \| Sales
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Derivatives	(67)	(138)	(100)	(256)
Foreign Currency Contracts \| Cost Of Sales
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Derivatives	235	502	895	1,198
Interest Rate Swaps \| Interest
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Derivatives	$ (317)	$ (102)	$ (717)	$ (116)

The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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