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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

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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