Goodwill (Schedule of Goodwill) (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2019	Sep. 30, 2019
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 797,853
Impairment Charges	(8,777)	$ 0
Effects of Foreign Currency Translation	6,705
Goodwill, Ending Balance	795,781	797,853
Aerospace [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	455,423
Impairment Charges
Effects of Foreign Currency Translation
Goodwill, Ending Balance	455,423	455,423
Industrial [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	342,430
Impairment Charges	(8,777)
Effects of Foreign Currency Translation	6,705
Goodwill, Ending Balance	$ 340,358	$ 342,430

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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