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Financial instruments (Details 28) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Financial instruments [Line Items] |  |
Current financial assets at amortised cost | $ 1,534,588 | $ 1,357,265
Current, financial assets at fair value through profit or loss | 19,801 | 20,931
Current, total financial assets | 1,554,389 | 1,378,196
Non-current financial assets at amortised cost | 1,785 | 2,350
Non-current, financial assets at fair value through profit or loss | 8,703 | 17,056
Non-current, total financial assets | 10,488 | 19,406
Financial assets at amortised cost | 1,536,373 | 1,359,615
Total, financial assets at fair value through profit or loss | 28,504 | 37,987
Total, total financial assets | 485,689 | 1,397,602
Cash and cash equivalent [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 588,530 | 556,066
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 588,530 | 556,066
Trade receivables due from related parties [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 61,227 | 42,790
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 61,227 | 42,790
Term deposits [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 485,689 | 291,790
Non-current financial assets at amortised cost | 75 | 75
Financial assets at amortised cost | 485,764 | 291,865
Loans and receivables, category [member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 399,142 | 466,619
Non-current financial assets at amortised cost | 1,710 | 2,275
Financial assets at amortised cost | 400,852 | 468,894
Hedging assets [Member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 17,270 | 18,238
Non-current, financial assets at fair value through profit or loss | 3,918 | 13,425
Total, financial assets at fair value through profit or loss | 21,188 | 31,663
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 | 2,531 | 2,693
Non-current, financial assets at fair value through profit or loss | 0 | 0
Total, financial assets at fair value through profit or loss | 2,531 | 2,693
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 | 4,785 | 3,631
Total, financial assets at fair value through profit or loss | $ 4,785 | $ 3,631

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- Definition The amount of current financial assets measured at fair value through profit or loss classified as held for trading. [Refer: Financial assets at fair value through profit or loss, classified as held for trading] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_a&doctype=Standard&book=b -URIDate 2019-03-27 + Details
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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 2019-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_25&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35H&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35I&doctype=Standard -URIDate 2019-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35M&doctype=Standard -URIDate 2019-03-27 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_35N&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 8 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2019-en-r&anchor=para_8_f&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The amount of financial assets at fair value through profit or loss classified as held for trading. A financial asset is classified as held for trading if: (a) it is acquired principally for the purpose of selling it in the near term; (b) on initial recognition it is part of a portfolio of identified financial instruments that are managed together and for which there is evidence of a recent actual pattern of short-term profit-taking; or (c) it is a derivative (except for a derivative that is a financial guarantee contract or a designated and effective hedging instrument). [Refer: At fair value [member]; Financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2021-01-01 -Name IFRS -Number 7 -IssueDate 2019-01-01 -Paragraph 8 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_a&doctype=Standard&book=b -URIDate 2019-03-27 + Details
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