Accumulated Other Comprehensive Income (Loss) (Reclassification from AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Reclassification from AOCIL into earnings - Retirement liability	$ 2,229	$ 2,831	$ 4,454	$ 5,663
Tax effect - Retirement liability	(519)	(655)	(1,038)	(1,308)
Net reclassification from AOCIL into earnings - Retirement liability	1,710	2,176	3,416	4,355
Reclassification from AOCIL into earnings - Derivatives	(29)	(51)	(11)	(30)
Tax effect - Derivatives	7	12	3	7
Net reclassification from AOCIL into earnings - Derivatives	(22)	(39)	(8)	(23)
Reclassification from AOCIL into earnings - Foreign currency translation	0	(10)	0	11,002
Tax effect - Foreign currency translation	0	0	0	0
Net reclassification from AOCIL into earnings - Foreign currency translation	0	(10)	0	11,002
Income Statement Location [Axis]: us-gaap:OtherNonoperatingIncomeExpense
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Prior service cost	15	15	30	29
Actuarial losses	2,214	2,816	4,424	5,634
Reclassification from AOCIL into earnings - Foreign currency translation	0	(10)	0	11,002
Foreign currency contracts \| Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold
Reclassification Adjustment out of Accumulated Other Comprehensive Income
Reclassification from AOCIL into earnings - Derivatives	$ (29)	$ (51)	$ (11)	$ (30)

Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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