Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Disaggregation Of Revenue [Line Items]
Net sales	$ 883,629	$ 835,343	$ 1,656,354	$ 1,622,073
Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	561,729	497,512	1,055,611	958,268
Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	321,900	337,831	600,743	663,805
Point In Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	401,826	432,403	748,879	807,536
Point In Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	223,025	229,171	415,010	417,674
Point In Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	178,801	203,232	333,869	389,862
Over Time [Member]
Disaggregation Of Revenue [Line Items]
Net sales	481,803	402,940	907,475	814,537
Over Time [Member] | Aerospace [Member]
Disaggregation Of Revenue [Line Items]
Net sales	338,704	268,341	640,601	540,594
Over Time [Member] | Industrial [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 143,099	$ 134,599	$ 266,874	$ 273,943