Joint Venture (Other Income Related JV) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Other income	$ 2,386	$ 3,212
Woodward and General Electric Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Other income	$ 2,386	$ 3,212