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Revenue (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | $ 614,332 | $ 556,675 | $ 1,742,757 | $ 1,675,615
Aerospace [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 401,712 | 340,912 | 1,110,904 | 1,027,285
Aerospace [Member] | Commercial OEM [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 131,968 | 96,290 | 359,683 | 274,278
Aerospace [Member] | Commercial Aftermarket [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 108,695 | 75,508 | 303,335 | 218,602
Aerospace [Member] | Defense OEM [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 115,205 | 117,204 | 318,392 | 384,097
Aerospace [Member] | Defense Aftermarket [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 45,844 | 51,910 | 129,494 | 150,308
Industrial [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 212,620 | 215,763 | 631,853 | 648,330
Industrial [Member] | Reciprocating Engines [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 154,090 | 166,143 | 469,087 | 494,099
Industrial [Member] | Industrial Turbines [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | $ 58,530 | $ 49,620 | $ 162,766 | $ 154,231

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