Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Net sales	$ 835,343	$ 718,214	$ 1,622,073	$ 1,336,833
Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	497,512	437,017	958,268	832,702
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	337,831	281,197	663,805	504,131
Point In Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	432,403	365,908	807,536	675,587
Point In Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	229,171	188,248	417,674	358,088
Point In Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	203,232	177,660	389,862	317,499
Over Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	402,940	352,306	814,537	661,246
Over Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	268,341	248,769	540,594	474,614
Over Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 134,599	$ 103,537	$ 273,943	$ 186,632