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Acquisitions and Divestitures (Narrative) (Details) - USD ($) $ in Thousands |  |  | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 09, 2026 | Jul. 21, 2025 | Mar. 31, 2025 | Sep. 30, 2025
Acquisitions And Divestitures [Line Items] |  |  |  |
Cash proceeds |  |  | $ 44,896 |
Cash receivables |  |  | 7,003 |
Pretax gain |  |  | $ 20,524 |
Safran Electronics and Defense [Member] |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Acquisition date |  | Jul. 21, 2025 |  |
Percentage of outstanding equity interests acquired |  | 100.00% |  |
Acquisition-related costs |  |  |  | $ 9,348
Total consideration |  | $ 40,286 |  |
Jet Research Development, Inc [Member] |  |  |  |
Acquisitions And Divestitures [Line Items] |  |  |  |
Acquisition date | Mar. 09, 2026 |  |  |
Total consideration | $ 120,972 |  |  |

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