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Summary of significant accounting policies (Details 2) - Argentina Consumer Price [Member] | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Level of price index | 183.13 | 124.80 | 100.00
Price index movements | 47.5 | 24.8 | 0

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- Definition The value of the level of the general price index used to restate financial statement information of an entity whose functional currency is the currency of a hyperinflationary economy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 29 -IssueDate 2018-01-01 -Paragraph 39 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=29&date=2018-03-01&anchor=para_39_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The movements in the general price index used to restate financial statement information of an entity whose functional currency is the currency of a hyperinflationary economy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 29 -IssueDate 2018-01-01 -Paragraph 39 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=29&date=2018-03-01&anchor=para_39_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Details
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