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GOODWILL AND INTANGIBLE ASSETS - SCHEDULE OF INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Indefinite-lived Intangible Assets [Line Items]
Cost	$ 38,587	$ 3,570
Accumulated Amortization	5,640	1,273
Net	$ 32,947	$ 2,297
Completed technologies
Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	6 years 4 months 24 days	6 years
Cost	$ 20,341	$ 2,370
Accumulated Amortization	3,070	833
Net	$ 17,271	$ 1,537
Customer relationships
Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	4 years 9 months 18 days	6 years
Cost	$ 17,628	$ 970
Accumulated Amortization	2,351	341
Net	$ 15,277	$ 629
Trade names
Indefinite-lived Intangible Assets [Line Items]
Weighted Average Amortization Period	4 years 6 months	5 years
Cost	$ 618	$ 230
Accumulated Amortization	219	99
Net	$ 399	$ 131

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 1
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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
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