Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (3,420)	$ 5,008	$ 22,216
Restructuring activities	(3,420)	5,008	22,216
Termination Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges			$ 23,673
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]			Restructuring activities
Hydraulics Systems and Engine Systems [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,083	5,008
Restructuring charges expected payment term	12 months
Restructuring Reserve, Accrual Adjustment	$ 4,503
Restructuring activities	$ 1,083	$ 5,008