Segment Information (Summary of Consolidated Net Sales and Earnings by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total net sales	$ 618,619	$ 541,586
Interest expense, net	(10,776)	(7,665)
Consolidated earnings before income taxes	31,749	37,746
Aerospace [Member]
Segment Reporting Information [Line Items]
Total net sales	395,685	336,435
Industrial [Member]
Segment Reporting Information [Line Items]
Total net sales	222,934	205,151
Operating Segments [Member] | Aerospace [Member]
Segment Reporting Information [Line Items]
Total net sales	395,685	336,435
Segment earnings (loss)	55,434	51,083
Operating Segments [Member] | Industrial [Member]
Segment Reporting Information [Line Items]
Total net sales	222,934	205,151
Segment earnings (loss)	11,402	23,693
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Segment earnings (loss)	$ (24,311)	$ (29,365)