Segment Information (Consolidated Total Assets by Segment) (Details) - USD ($) $ in Thousands	9 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2015
Assets	$ 2,646,066		$ 2,513,916
Property, plant and equipment, net	844,455		756,100
Other unallocated assets	253,899		207,813
Depreciation and amortization	49,921	$ 55,754
Capital expenditures	128,628	$ 190,865
Aerospace [Member]
Assets	1,603,716		1,566,421
Industrial [Member]
Assets	701,763		653,848
Total of Reporting Segments [Member]
Assets	2,305,479		2,220,269
Unallocated Corporate [Member]
Property, plant and equipment, net	$ 86,688		$ 85,834

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Sum of the carrying amounts as of the balance sheet date of all assets, excluding property, plant and equipment that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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