Goodwill and Other Intangible Assets, Net - Overview (Details) $ in Thousands	6 Months Ended
Mar. 31, 2018 USD ($)
Goodwill and Other Intangible Assets, Net
Goodwill impairment loss	$ 0
Change to goodwill	$ 0
Patents \| Minimum
Goodwill and Other Intangible Assets, Net
Useful life	2 years
Patents \| Maximum
Goodwill and Other Intangible Assets, Net
Useful life	16 years
Customer relationships \| Minimum
Goodwill and Other Intangible Assets, Net
Useful life	2 years
Customer relationships \| Maximum
Goodwill and Other Intangible Assets, Net
Useful life	16 years

No definition available.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of accumulated impairment loss for 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a,h)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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Amount of increase (decrease) 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://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

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