Segment Information (Summary of Consolidated Total Assets by Segment) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Sep. 30, 2022
Segment Reporting Information [Line Items]
Consolidated total assets	$ 3,894,808	$ 3,806,446
Property, plant and equipment, net	921,665	910,472
Other assets	309,228	327,419
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	119,690	111,760
Other assets	524,676	540,386
Aerospace [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated total assets	1,783,466	1,773,854
Industrial [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Consolidated total assets	$ 1,466,976	$ 1,380,446