Segment Information (Segment Sales By Market Type) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Mar. 30, 2024	Apr. 01, 2023
Segment Reporting Information
Net sales	$ 930,303	$ 836,792	$ 1,787,153	$ 1,596,895
Space And Defense
Segment Reporting Information
Net sales	266,787	245,853	496,915	463,638
Space And Defense | Space
Segment Reporting Information
Net sales	113,697	111,873	213,307	207,758
Space And Defense | Defense
Segment Reporting Information
Net sales	153,090	133,980	283,608	255,880
Military Aircraft
Segment Reporting Information
Net sales	202,500	182,753	388,744	360,553
Military Aircraft | Original Equipment Manufacturers
Segment Reporting Information
Net sales	153,611	138,701	294,982	271,469
Military Aircraft | Aftermarket
Segment Reporting Information
Net sales	48,889	44,052	93,762	89,084
Commercial Aircraft
Segment Reporting Information
Net sales	207,594	164,251	401,816	296,710
Commercial Aircraft | Original Equipment Manufacturers
Segment Reporting Information
Net sales	140,281	110,986	269,983	191,661
Commercial Aircraft | Aftermarket
Segment Reporting Information
Net sales	67,313	53,265	131,833	105,049
Industrial
Segment Reporting Information
Net sales	253,422	243,935	499,678	475,994
Industrial | Energy
Segment Reporting Information
Net sales	34,504	28,980	67,274	60,550
Industrial | Industrial Automation
Segment Reporting Information
Net sales	115,959	125,538	232,374	236,656
Industrial | Simulation and Test
Segment Reporting Information
Net sales	38,053	24,765	75,558	53,090
Industrial | Medical
Segment Reporting Information
Net sales	$ 64,906	$ 64,652	$ 124,472	$ 125,698