Goodwill (Goodwill) (Details) $ in Thousands	9 Months Ended
Jun. 30, 2015 USD ($)
Goodwill, Beginning Balance	$ 559,724
Effects of Currency Translation	(1,285)
Goodwill, Ending Balance	558,439
Aerospace [Member]
Goodwill, Beginning Balance	455,423
Effects of Currency Translation	0
Goodwill, Ending Balance	455,423
Energy [Member]
Goodwill, Beginning Balance	104,301
Effects of Currency Translation	(1,285)
Goodwill, Ending Balance	$ 103,016

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant