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TRADE AND OTHER ACCOUNTS RECEIVABLE CURRENT, AND NON-CURRENT ACCOUNTS RECEIVABLE (Details 4) - Accumulated Impairment [Member] - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of reconciliation of changes in goodwill [line items] |  |  |  |
Opening balance |  | $ (87,909) | $ (77,054) | $ (60,072)
Adoption adjustment IFRS 9 | [1] | (10,524) |  |
Write-offs |  | 8,620 | 8,249 | 20,910
(Increase) Decrease |  | (8,178) | (19,104) | (37,892)
Closing balance |  | $ (97,991) | $ (87,909) | $ (77,054)
[1] | Adjustment to the balance as of December 31, 2017 registered in retained earnings as of 01.01.2018 for the adoption of IFRS 9.

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The amount recognised as allowance for impairment loss after adoption adjustments. + References No definition available. + Details
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- Definition Amount of increase decrease allowance for credit losses related to receivables. + References No definition available. + Details
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- Definition It represents the amount of trade receivables allowance for impairment loss. + References No definition available. + Details
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- Details
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