Business Segment Information - Schedule Of Identifiable Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Sep. 30, 2021
Identifiable Assets	$ 1,654,456	$ 1,577,345
Aerospace & Defense
Identifiable Assets	295,200	270,000
USG
Identifiable Assets	220,000	197,500
Test
Identifiable Assets	174,600	153,600
Corporate
Other Assets	$ 964,700	$ 956,200