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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Gain on transactions with bonds (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of changes in accounting policies, accounting estimates and errors [Abstract] |  |  |
Gain on transactions with bonds | $ 1,569 | $ 0 | $ 0

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- Definition Disclosure of changes in accounting policies, accounting estimates and errors [Abstract] + References No definition available. + Details
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- Definition The gains (losses) representing the difference resulting from the restatement of non-monetary assets, owners' equity and items in the statement of comprehensive income and the adjustment of index linked assets and liabilities in hyperinflationary reporting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 29 -IssueDate 2019-01-01 -Paragraph 9 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=29&code=ifrs-tx-2019-en-r&anchor=para_9&doctype=Standard -URIDate 2019-03-27 + Details
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