Joint Venture (Narrative) (Details) - Woodward and General Electric Joint Venture [Member] - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Schedule Of Equity Method Investments [Line Items]
Ownership interest, joint venture			50.00%
Cash received annually from formation of joint venture	$ 4,894	$ 4,894	$ 4,894
Other Liabilities [Member]
Schedule Of Equity Method Investments [Line Items]
Contract liabilities			84,059	$ 79,257
Reduction in contract liabilities and costs to fulfill contract			870	1,146
Other Assets [Member]
Schedule Of Equity Method Investments [Line Items]
Costs to fulfill a contract			84,059	79,257
Reduction in contract assets and costs to fulfill contract			870	1,146
Sales [Member]
Schedule Of Equity Method Investments [Line Items]
Amortization of deferred income recognized as an increase to sales			5,020	3,633	$ 4,191
Reduction to sales related to royalties owed to joint venture			$ 49,624	$ 28,054	$ 21,101