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Financial instruments - Financial Assets By Institution (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2023 | Sep. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | $ 1,325,843 |  |  | $ 1,325,843 | $ 961,355 |
Acquisition of non-current financial assets |  |  |  | 30,701 | 0 | $ 0
Azure Minerals Limited |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Current investments in equity instruments designated at fair value through other comprehensive income | 135,358 |  |  | 135,358 |  |
Term deposit One |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Collateral guarantees | 5,590 |  |  | 5,590 |  |
Financial assets at amortized cost |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 1,316,797 |  |  | 1,316,797 | 950,167 |
Financial assets at amortized cost | Banco Crédito e Inversiones |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 74,459 |  |  | 74,459 | 187,707 |
Financial assets at amortized cost | Banco Morgan Stanley |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 5,590 |  |  | 5,590 | 0 |
Financial assets at amortized cost | Banco Santander |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 100,083 |  |  | 100,083 | 51,444 |
Financial assets at amortized cost | Banco Itaú CorpBanca |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 372,061 |  |  | 372,061 | 15,048 |
Financial assets at amortized cost | Banco Estado |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 0 |  |  | 0 | 85,055 |
Financial assets at amortized cost | Banco de Chile |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 0 |  |  | 0 | 150,259 |
Financial assets at amortized cost | Scotiabank Sud Americano |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 672,720 |  |  | 672,720 | 250,362 |
Financial assets at amortized cost | Sumitomo Mitsui Banking |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Other current financial assets | 91,884 |  |  | $ 91,884 | $ 210,292 |
Financial assets at fair value through other comprehensive income | Azure Minerals Limited |  |  |  |  |  |
Financial instruments [Line Items] |  |  |  |  |  |
Acquisition of non-current financial assets | $ 4,317 | $ 12,904 | $ 13,480 |  |  |
Financial asset, ownership interest percentage |  |  | 19.99% |  |  |
Acquisition agreement, right to acquire products, percentage |  |  | 25.00% |  |  |

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