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Related parties (Schedule of Balances Outstanding and Transactions with Related Parties) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure Of Related parties [Line Items] |  |  |
Amounts receivable, related party transactions | $ 8,750 | $ 4,680 |
Geological and geophysical expenses. | 10,529 | 7,891 | $ 14,951
Administrative expenses. | 50,024 | 46,828 | 50,315
Entities with joint control or significant influence over entity [member] |  |  |
Disclosure Of Related parties [Line Items] |  |  |
Amounts receivable, related party transactions | 8,750 | 4,680 | 2,236
Amounts payable, related party transactions | $ (2,815) | $ (953) | $ (5,760)
Description of nature of related party relationship | Joint Operations | Joint Operations | Joint Operations
Carlos Gulisano [Member] |  |  |
Disclosure Of Related parties [Line Items] |  |  |
Geological and geophysical expenses. | $ 160 | $ 160 | $ 130
Description of nature of related party relationship | Non-Executive Director (a) | Non-Executive Director (a) | Non-Executive Director (a)
Pedro Aylwin [Member] |  |  |
Disclosure Of Related parties [Line Items] |  |  |
Administrative expenses. | $ 492 | $ 656 | $ 561
Description of nature of related party relationship | Former Executive Director (b) | Executive Director (b) | Executive Director (b)

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