Goodwill And Intangible Assets (Changes In Carrying Amount Of Goodwill) (Details) $ in Thousands	6 Months Ended
	Mar. 28, 2026 USD ($)
Goodwill
Beginning balance	$ 842,313
Adjustments to prior year acquisitions	82
Reclassification of held for sale	33,000
Foreign currency translation	(1,885)
Ending balance	873,510
Space And Defense
Goodwill
Beginning balance	262,740
Adjustments to prior year acquisitions	82
Reclassification of held for sale	33,000
Foreign currency translation	(1)
Ending balance	295,821
Military Aircraft
Goodwill
Beginning balance	118,545
Adjustments to prior year acquisitions	0
Reclassification of held for sale	0
Foreign currency translation	(60)
Ending balance	118,485
Commercial Aircraft
Goodwill
Beginning balance	92,612
Adjustments to prior year acquisitions	0
Reclassification of held for sale	0
Foreign currency translation	0
Ending balance	92,612
Industrial
Goodwill
Beginning balance	368,416
Adjustments to prior year acquisitions	0
Reclassification of held for sale	0
Foreign currency translation	(1,824)
Ending balance	$ 366,592