Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Disaggregation Of Revenue [Line Items]
Net sales	$ 800,663	$ 614,332	$ 2,137,496	$ 1,742,757
Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	480,531	401,712	1,313,233	1,110,904
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	320,132	212,620	824,263	631,853
Point In Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	403,404	274,131	1,078,991	795,231
Point In Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	194,807	154,323	552,895	428,212
Point In Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	208,597	119,808	526,096	367,019
Over Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	397,259	340,201	1,058,505	947,526
Over Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	285,724	247,389	760,338	682,692
Over Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 111,535	$ 92,812	$ 298,167	$ 264,834