Joint Venture (Narrative) (Details) - Woodward and General Electric Joint Venture [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Schedule Of Equity Method Investments [Line Items]
Cash received annually from formation of joint venture	$ 4,894	$ 4,894
Sales [Member]
Schedule Of Equity Method Investments [Line Items]
Amortization of deferred income recognized as an increase to sales	791	989	$ 989	$ 2,171
Reduction to sales related to royalties owed to joint venture	$ 7,200	$ 6,635	$ 13,146	$ 11,055