Segments (Segment Sales by Customer) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 03, 2026	Dec. 28, 2024
Segment Reporting Information
Net sales	$ 1,100,346	$ 907,882
Commercial customer
Segment Reporting Information
Net sales	578,099	494,574
U.S. Government customer (including OEM)
Segment Reporting Information
Net sales	408,044	323,651
Other Customer
Segment Reporting Information
Net sales	114,203	89,657
Space And Defense
Segment Reporting Information
Net sales	324,278	247,784
Space And Defense | Commercial customer
Segment Reporting Information
Net sales	62,347	59,102
Space And Defense | U.S. Government customer (including OEM)
Segment Reporting Information
Net sales	211,001	162,285
Space And Defense | Other Customer
Segment Reporting Information
Net sales	50,930	26,397
Military Aircraft
Segment Reporting Information
Net sales	247,411	213,420
Military Aircraft | U.S. Government customer (including OEM)
Segment Reporting Information
Net sales	196,223	160,775
Military Aircraft | Other Customer
Segment Reporting Information
Net sales	51,188	52,645
Commercial Aircraft
Segment Reporting Information
Net sales	267,843	218,490
Commercial Aircraft | Commercial customer
Segment Reporting Information
Net sales	258,239	209,326
Commercial Aircraft | Other Customer
Segment Reporting Information
Net sales	9,604	9,164
Industrial
Segment Reporting Information
Net sales	260,814	228,188
Industrial | Commercial customer
Segment Reporting Information
Net sales	257,513	226,146
Industrial | U.S. Government customer (including OEM)
Segment Reporting Information
Net sales	820	591
Industrial | Other Customer
Segment Reporting Information
Net sales	$ 2,481	$ 1,451