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Financial instruments (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Financial instruments [Line Items] |  |  |
Other current financial assets |  | $ 366,979 | $ 289,189
Other non-current financial assets |  | 42,879 | 14,099
Other financial assets [Member] |  |  |
Financial instruments [Line Items] |  |  |
Other current financial assets | [1] | 360,941 | 284,160
Other non-current financial assets | [2] | 42,879 | 14,099
Hedging assets [Member] |  |  |
Financial instruments [Line Items] |  |  |
Other current financial assets |  | 0 | 934
Other non-current financial assets |  | 8,910 | 7,156
Derivatives [member] |  |  |
Financial instruments [Line Items] |  |  |
Other current financial assets | [3] | $ 6,038 | $ 4,095
[1] | Relates to term deposits with maturities exceeding 90 days and less than 360 days from the investment date.
[2] | The detail of other financial assets, non-current is as follows:
[3] | Relates to forwards and options that were not classified as hedging instruments (see detail in Note 10.3).

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- Definition The amount of current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets; Current financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_d&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of non-current financial assets that the entity does not separately disclose in the same statement or note. [Refer: Other financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_d&doctype=Standard -URIDate 2017-03-09 + Details
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- Details
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- Details
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