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Financial instruments (Details 28) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Financial instruments [Line Items] |  |
Current financial assets at amortised cost | $ 1,282,368 | $ 1,534,588
Current, financial assets at fair value through profit or loss | 2,610 | 19,801
Non-current financial assets at amortised cost | 11,245 | 1,785
Non-current, financial assets at fair value through profit or loss | 51,845 | 8,703
Financial assets at amortised cost | 1,293,613 | 1,536,373
Total, financial assets at fair value through profit or loss | 54,455 | 28,504
Cash and cash equivalent [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 509,102 | 588,530
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 509,102 | 588,530
Trade receivables due from related parties at amortized cost [Member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 62,601 | 61,227
Non-current financial assets at amortised cost | 0 | 0
Financial assets at amortised cost | 62,601 | 61,227
Financial assets measured at amortized cost [member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 345,459 | 485,689
Non-current financial assets at amortised cost | 80 | 75
Financial assets at amortised cost | 345,539 | 485,764
Loans and receivables, category [member] |  |
Financial instruments [Line Items] |  |
Current financial assets at amortised cost | 365,206 | 399,142
Non-current financial assets at amortised cost | 11,165 | 1,710
Financial assets at amortised cost | 376,371 | 400,852
Hedging assets [Member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 0 | 17,270
Non-current, financial assets at fair value through profit or loss | 37,276 | 3,918
Total, financial assets at fair value through profit or loss | 37,276 | 21,188
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 | 14,569 | 4,785
Total, financial assets at fair value through profit or loss | 14,569 | 4,785
Financial liabilities held for trading [Member] |  |
Financial instruments [Line Items] |  |
Current, financial assets at fair value through profit or loss | 2,610 | 2,531
Non-current, financial assets at fair value through profit or loss | 0 | 0
Total, financial assets at fair value through profit or loss | 2,610 | 2,531
Total Financial Assets [Member] |  |
Financial instruments [Line Items] |  |
Current, total financial assets | 1,284,978 | 1,554,389
Non-current, total financial assets | 63,090 | 10,488
Total, total financial assets | $ 1,348,068 | $ 1,564,877

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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 2020-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_25&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35H -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35H&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35I -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35I&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35M -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35M&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 35N -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_35N&doctype=Standard -URIDate 2020-01-01 + Details
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