Accrued Liabilities (Changes in Restructuring Reserve Activity) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 0	$ 5,172	$ (3,420)
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]		Restructuring Charges	Restructuring Charges
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period		$ 1,083
Restructuring Charges		5,172
Payments		(6,290)
Non-cash activity		35
Restructuring charges, end of period			$ 1,083
Employee Severance [Member] | Cost Reduction Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges		5,172
Payments		(5,207)
Non-cash activity		35
Employee Severance [Member] | Aerospace [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period		139
Payments		(139)
Restructuring charges, end of period			139
Employee Severance [Member] | Industrial [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges, beginning of period		944
Payments		$ (944)
Restructuring charges, end of period			$ 944