Accrued Liabilities (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Mar. 31, 2022	Sep. 30, 2020
Termination Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related charges		$ 23,673
Hydraulics and Engine Systems [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 5,008
Restructuring charges expected payment term	12 months