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Joint Venture (Other Income Related JV) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Mar. 31, 2020 | Mar. 31, 2019
Schedule of Equity Method Investments [Line Items] |  |  |  |
Other income | $ 4,681 | $ 3,006 | $ 7,893 | $ 4,471
Woodward and General Electric Joint Venture [Member] |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Other income | $ 4,681 | $ 3,006 | $ 7,893 | $ 4,471

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