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Segment Information (Summary of Consolidated Net Sales and Earnings by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total net sales	$ 614,332	$ 556,675	$ 1,742,757	$ 1,675,615
Interest expense, net	(8,180)	(8,089)	(23,542)	(24,466)
Consolidated earnings before income taxes	50,287	58,698	142,129	184,769
Aerospace [Member]
Segment Reporting Information [Line Items]
Total net sales	401,712	340,912	1,110,904	1,027,285
Industrial [Member]
Segment Reporting Information [Line Items]
Total net sales	212,620	215,763	631,853	648,330
Operating Segments [Member] | Aerospace [Member]
Segment Reporting Information [Line Items]
Total net sales	401,712	340,912	1,110,904	1,027,285
Segment earnings (loss)	56,566	53,167	167,458	168,641
Operating Segments [Member] | Industrial [Member]
Segment Reporting Information [Line Items]
Total net sales	212,620	215,763	631,853	648,330
Segment earnings (loss)	21,102	27,166	62,029	87,925
Unallocated Corporate [Member]
Segment Reporting Information [Line Items]
Segment earnings (loss)	$ (19,201)	$ (13,546)	$ (63,816)	$ (47,331)

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