Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation Of Revenue [Line Items]
Net sales	$ 847,688	$ 800,663	$ 2,469,761	$ 2,137,496
Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	517,560	480,531	1,475,828	1,313,233
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	330,128	320,132	993,933	824,263
Point In Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	426,064	403,404	1,233,600	1,078,991
Point In Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	219,318	194,807	636,992	552,895
Point In Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	206,746	208,597	596,608	526,096
Over Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	421,624	397,259	1,236,161	1,058,505
Over Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	298,242	285,724	838,836	760,338
Over Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 123,382	$ 111,535	$ 397,325	$ 298,167