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Business Combination - Schedule of Intangible Assets Acquired (Details) - USD ($) $ in Thousands			9 Months Ended	12 Months Ended
	May 23, 2018	Oct. 16, 2017	Jun. 30, 2018	Sep. 30, 2017
Customer relationships
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period			4 years 9 months 18 days	6 years
A2iA Group II, S.A.S.
Acquired Indefinite-lived Intangible Assets [Line Items]
Intangible assets acquired	$ 28,610
A2iA Group II, S.A.S. | Completed technologies
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period	7 years
Intangible assets acquired	$ 13,015
A2iA Group II, S.A.S. | Customer relationships
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period	5 years
Intangible assets acquired	$ 15,360
A2iA Group II, S.A.S. | Trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period	5 years
Intangible assets acquired	$ 235
ICAR Vision Systems, S.L.
Acquired Indefinite-lived Intangible Assets [Line Items]
Intangible assets acquired		$ 6,407
ICAR Vision Systems, S.L. | Completed technologies
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period		5 years
Intangible assets acquired		$ 4,956
ICAR Vision Systems, S.L. | Customer relationships
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period		2 years
Intangible assets acquired		$ 1,298
ICAR Vision Systems, S.L. | Trade names
Acquired Indefinite-lived Intangible Assets [Line Items]
Amortization Period		3 years
Intangible assets acquired		$ 153

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275

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