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Significant accounting policies (Details)		Dec. 31, 2019 Employees	Dec. 31, 2018 Employees
Significant accounting policies [Line Items]
Closing foreign exchange rate | Pure		748.74	694.77
Brazilian real [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		4.02	3.87
New Peruvian Sol [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		3.31	3.37
Argentine peso [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		59.83	37.74
Japanese yen [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		108.9	110.38
Euro [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		0.89	0.87
Mexican peso [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		18.89	19.68
Australian dollar [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		1.43	1.42
Pound Sterling [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		0.76	0.79
South African rand [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		14.06	14.35
Ecuadorian Dollar [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		1.00	1.00
Chilean peso [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		748.74	694.77
Chinese yuan [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		6.98	6.88
Indian rupee [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		71.31	69.93
Thai baht [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		29.97	32.53
Turkish Lira Member [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate		5.94	5.27
Polish Ztoly [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate | Employees		3.79	0
Uf [Member]
Significant accounting policies [Line Items]
Closing foreign exchange rate	[1]	37.81	39.68
[1] US$ por UF

X

- Definition

The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2019-03-27

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