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Financial instruments - Derivative Financial Instruments (Hedges) Measured at Fair Value (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Aug. 18, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Financial instruments [Line Items] |  |  |
Hedging assets |  | $ 25,039 | $ 33,794
Hedging liabilities |  | 53,657 | 68,342
Effect on profit or loss for the period derivative instruments |  | (7,666) | 25,714
Hedging reserve in equity before tax |  | (1,275) | (19,967)
Series Q bonds |  |  |
Financial instruments [Line Items] |  |  |
Effect on profit or loss for the period derivative instruments | $ 16,440 |  |
Debt | Cross currency swap contracts |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 23,031 | 22,481
Hedging liabilities |  | 38,810 | 62,526
Effect on profit or loss for the period derivative instruments |  | (13,067) | (12,939)
Hedging reserve in equity before tax |  | (2,712) | (27,106)
Debt | Cross currency swap contracts | Short term |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 7,038 | 7,014
Hedging liabilities |  | 30,442 | 42,754
Effect on profit or loss for the period derivative instruments |  | 0 | 0
Hedging reserve in equity before tax |  | 0 | 0
Debt | Cross currency swap contracts | Long term |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 15,993 | 15,467
Hedging liabilities |  | 8,368 | 19,772
Effect on profit or loss for the period derivative instruments |  | 0 | 0
Hedging reserve in equity before tax |  | 0 | 0
Investment |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 24,520 | 29,620
Hedging liabilities |  | 38,862 | 62,526
Effect on profit or loss for the period derivative instruments |  | (13,067) | (12,939)
Hedging reserve in equity before tax |  | (1,275) | (19,967)
Investment | Forward contract |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 1,489 | 7,139
Hedging liabilities |  | 52 | 0
Effect on profit or loss for the period derivative instruments |  | 0 | 0
Hedging reserve in equity before tax |  | 1,437 | 7,139
Investment | Forward contract | Short term |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 1,489 |
Hedging liabilities |  | 0 |
Effect on profit or loss for the period derivative instruments |  | 0 |
Hedging reserve in equity before tax |  | 0 |
Investment | Forward contract | Long term |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 0 | 7,139
Hedging liabilities |  | 52 | 0
Effect on profit or loss for the period derivative instruments |  | 0 | 0
Hedging reserve in equity before tax |  | 1,437 | 7,139
Investment | Option contract |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 519 | 4,174
Hedging liabilities |  | 14,795 | 5,816
Effect on profit or loss for the period derivative instruments |  | 5,401 | 38,653
Hedging reserve in equity before tax |  | 0 | 0
Investment | Option contract | Short term |  |  |
Financial instruments [Line Items] |  |  |
Hedging assets |  | 519 | 4,174
Hedging liabilities |  | 14,795 | 5,816
Effect on profit or loss for the period derivative instruments |  | 0 | 0
Hedging reserve in equity before tax |  | $ 0 | $ 0

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- Definition The gains (losses) on hedging instruments in fair value hedges. [Refer: Fair value hedges [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_24_a_i&doctype=Standard&book=b -URIDate 2023-03-23 + Details
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- Definition The amount of a hedging instrument, recognised as an asset. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24A_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of a hedging instrument, recognised as a liability. [Refer: Hedging instruments [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 24A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_24A_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition Financial instruments [Line Items] + References No definition available. + Details
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