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BUSINESS COMBINATIONS - SCHEDULE OF ESTIMATED FAIR VALUE OF ASSETS ACQUIRED AND LIABILITIES ASSUMED (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Sep. 30, 2017
--- | --- | ---
Business Acquisition [Line Items] |  |
Goodwill | $ 34,407 | $ 3,014
A2iA Group II S.A.S. and ICAR Vision Systems, S.L. |  |
Business Acquisition [Line Items] |  |
Current assets | 5,965 |
Property, plant, and equipment | 390 |
Intangible assets | 35,017 |
Goodwill | 31,803 |
Other non-current assets | 1,264 |
Current liabilities | (4,216) |
Deferred income tax liabilities | (9,105) |
Other non-current liabilities | (835) |
Net assets acquired | 60,283 |
A2iA |  |
Business Acquisition [Line Items] |  |
Current assets | 3,929 |
Property, plant, and equipment | 307 |
Goodwill | 24,867 |
Other non-current assets | 1,177 |
Current liabilities | (2,564) |
Deferred income tax liabilities | (7,503) |
Other non-current liabilities | (7) |
Net assets acquired | 48,816 |
ICAR |  |
Business Acquisition [Line Items] |  |
Current assets | 2,036 |
Property, plant, and equipment | 83 |
Goodwill | 6,936 |
Other non-current assets | 87 |
Current liabilities | (1,652) |
Deferred income tax liabilities | (1,602) |
Other non-current liabilities | (828) |
Net assets acquired | $ 11,467 |

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