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Effect of fluctuations in foreign currency exchange rates (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statement [Line Items] |  |  |
Conversion foreign exchange gains (losses) recognized in the result of the year. | $ (2,169) | $ (16,597) | $ (1,299)
Gains (losses) on exchange differences on translation, before tax | 788 | (1,220) | (5,446)
Equity attributable to owners of the Parent [member] |  |  |
Statement [Line Items] |  |  |
Gains (losses) on exchange differences on translation, before tax | 562 | (1,394) | (5,450)
Non-controlling interests [member] |  |  |
Statement [Line Items] |  |  |
Gains (losses) on exchange differences on translation, before tax | $ 226 | $ 174 | $ 4

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- Definition The gains (losses) recognised in other comprehensive income on exchange differences on the translation of financial statements of foreign operations, before tax. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 91 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_91_b&doctype=Standard -URIDate 2019-03-27 + Details
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