Joint Venture (Other Income Related JV) (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Schedule Of Equity Method Investments [Line Items]
Other income	$ 41,191	$ 36,846	$ 18,193
Woodward and General Electric Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Other income	$ 41,191	$ 36,846	$ 18,193

Amount of income (loss) for proportionate share of equity method investee's income (loss).

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