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v3.25.1

Revenue (Schedule of Disaggregation of Revenue) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | $ 883,629 | $ 835,343 | $ 1,656,354 | $ 1,622,073
Aerospace [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 561,729 | 497,512 | 1,055,611 | 958,268
Aerospace [Member] | Commercial OEM [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 167,461 | 183,517 | 321,537 | 354,871
Aerospace [Member] | Commercial Aftermarket [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 201,861 | 163,886 | 365,711 | 301,430
Aerospace [Member] | Defense OEM [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 137,928 | 91,017 | 250,710 | 184,442
Aerospace [Member] | Defense Aftermarket [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 54,479 | 59,092 | 117,653 | 117,525
Industrial [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 321,900 | 337,831 | 600,743 | 663,805
Industrial [Member] | Power Generation [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 111,047 | 106,811 | 216,266 | 204,917
Industrial [Member] | Transportation [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | 141,734 | 173,786 | 258,340 | 348,255
Industrial [Member] | Oil and Gas [Member] |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |
Total net sales | $ 69,119 | $ 57,234 | $ 126,137 | $ 110,633

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