Segments (Sales by Revenue Recognition Method) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024
Segment Reporting Information
Net sales	$ 971,363	$ 904,735	$ 2,816,518	$ 2,691,888
Transferred over time
Segment Reporting Information
Net sales	609,171	584,767	1,804,150	1,718,029
Transferred at point in time
Segment Reporting Information
Net sales	362,192	319,968	1,012,368	973,859
Space And Defense
Segment Reporting Information
Net sales	287,705	258,409	805,673	755,324
Space And Defense | Transferred over time
Segment Reporting Information
Net sales	254,222	226,405	720,254	679,231
Space And Defense | Transferred at point in time
Segment Reporting Information
Net sales	33,483	32,004	85,419	76,093
Military Aircraft
Segment Reporting Information
Net sales	224,662	207,177	651,931	595,921
Military Aircraft | Transferred over time
Segment Reporting Information
Net sales	184,720	168,248	542,353	482,163
Military Aircraft | Transferred at point in time
Segment Reporting Information
Net sales	39,942	38,929	109,578	113,758
Commercial Aircraft
Segment Reporting Information
Net sales	219,436	189,365	656,740	591,181
Commercial Aircraft | Transferred over time
Segment Reporting Information
Net sales	142,789	149,220	458,863	449,230
Commercial Aircraft | Transferred at point in time
Segment Reporting Information
Net sales	76,647	40,145	197,877	141,951
Industrial
Segment Reporting Information
Net sales	239,560	249,784	702,174	749,462
Industrial | Transferred over time
Segment Reporting Information
Net sales	27,440	40,894	82,680	107,405
Industrial | Transferred at point in time
Segment Reporting Information
Net sales	$ 212,120	$ 208,890	$ 619,494	$ 642,057