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BUSINESS COMBINATIONS - Minority Interest Purchase Agreement (Dynaflows) (Details) - USD ($) $ in Thousands |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 26, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2019 | Oct. 22, 2015
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Gain on remeasurement of valuation of call and put option over non-controlling interest |  | $ 1,611 | $ 1,726 |  |
Other financial liabilities |  | 3,418 |  | $ 1,617 |
Derecognition of call option over non-controlling interest |  | $ 455 |  |  |
Dynaflows S.A. |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Value of share options exercised in share-based payment arrangement | $ 1,186 |  |  |  |
Other financial liabilities |  |  | $ 2,797 |  |
Financial liabilities, discounted interest rate |  |  | 3.50% |  |
Major business combination | Dynaflows S.A. |  |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |  |
Put option contract written, percentage of ownership interest |  |  |  | 33.27% | 33.27%

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