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Joint Venture (Narrative) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Revenue from contract liabilities |  |  | $ 44,398,000 | $ 25,190,000 |
Cost of goods sold from contract assets |  |  | $ 2,447,770,000 | 2,236,983,000 | $ 1,857,485,000
Woodward and General Electric Joint Venture [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Ownership interest, joint venture |  |  | 50.00% |  |
Cash received annually from formation of joint venture | $ 4,894,000 | $ 4,894,000 | $ 4,894,000 |  |
Revenue from contract liabilities |  |  | 812,000 | 870,000 |
Cost of goods sold from contract assets |  |  | 1,236,000 | 870,000 |
Reduction in contract liability and costs to fulfill contract |  |  | 9,680,000 | 0 |
Reduction in costs to fulfill a contract related to the termination |  |  | 9,680,000 | 0 |
Woodward and General Electric Joint Venture [Member] | Other Liabilities [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Contract liabilities |  |  | 78,226,000 | 84,059,000 |
Woodward and General Electric Joint Venture [Member] | Other Assets [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Costs to fulfill a contract |  |  | 78,226,000 | 84,059,000 |
Woodward and General Electric Joint Venture [Member] | Sales [Member] |  |  |  |  |
Schedule Of Equity Method Investments [Line Items] |  |  |  |  |
Amortization of deferred income recognized as an increase to sales |  |  | 6,294,000 | 5,020,000 | 3,633,000
Reduction to sales related to royalties owed to joint venture |  |  | $ 63,794,000 | $ 49,624,000 | $ 28,054,000

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- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479483/340-40-50-3 + Details
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- Definition The annual cash inflow from the formation of a joint venture. The Company contributed certain contractual rights and intellectual property to the joint venture for which it had no cost basis. The joint venture partner paid the Company a lump sum and then will pay contingent consideration to the Company consisting of fiftenn annual payments for its ownership interest in the joint venture. + References No definition available. + Details
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