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Financial instruments (Details 26) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Financial instruments [Line Items] |  |
Current financial assets at amortised cost | $ 1,357,265 | $ 1,497,386
Current, financial assets at fair value through profit or loss | 20,931 | 6,038
Current, total financial assets | 1,378,196 | 1,503,424
Non-current financial assets at amortised cost | 2,350 | 1,957
Non-current, financial assets at fair value through profit or loss | 17,056 | 42,834
Non-current, total financial assets | 19,406 | 44,791
Financial assets at amortised cost | 1,359,615 | 1,499,343
Total, financial assets at fair value through profit or loss | 37,987 | 48,872
Total, total financial assets | 291,790 | 163,269
Cash and cash equivalent [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 556,066 | 630,438
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 556,066 | 630,438
Trade receivables due from related parties [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 44,554 | 59,132
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 44,554 | 59,132
Total, total financial assets | 44,554 | 59,132
Term deposits [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 291,790 | 360,941
Non-current financial assets at amortised cost | 75 | 45
Financial assets at amortised cost | 291,865 | 360,986
Loans and receivables, category [member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 464,855 | 446,875
Non-current financial assets at amortised cost | 2,275 | 1,912
Financial assets at amortised cost | 467,130 | 448,787
Hedging assets [Member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 18,238 | 0
Non-current, financial assets at fair value through profit or loss | 13,425 | 8,910
Total, financial assets at fair value through profit or loss | 31,663 | 8,910
Total, total financial assets | 18,238 | 0
Financial assets at fair value through profit or loss, classified as held for trading, category [member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 2,693 | 6,038
Non-current, financial assets at fair value through profit or loss | 0 | 0
Total, financial assets at fair value through profit or loss | 2,693 | 6,038
Investments in equity instruments designated at fair value through other comprehensive income [member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 0 | 0
Non-current, financial assets at fair value through profit or loss | 3,631 | 33,924
Total, financial assets at fair value through profit or loss | $ 3,631 | $ 33,924

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Financial instruments, class [member]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_25&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35H&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35I&doctype=Standard -URIDate 2018-03-16 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35M&doctype=Standard -URIDate 2018-03-16 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_35N&doctype=Standard -URIDate 2018-03-16 + Details
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