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Acquisitions and Divestitures (Summary of Preliminary Determination of Fair Value of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jul. 21, 2025	Sep. 30, 2024	Sep. 30, 2023
Assets:
Goodwill	$ 832,288		$ 806,643	$ 791,468
Safran Electronics and Defense [Member]
Assets:
Accounts Receivable		$ 8,032
Inventories		12,514
Other current assets		3,125
Property, plant, and equipment		6,945
Goodwill		18,389
Other assets		4,528
Total assets		53,533
Liabilities:
Accrued liabilities		4,201
Accounts payable		2,981
Income tax payable		188
Other noncurrent liabilities		4,485
Total liabilities		$ 11,855

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