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Transactions in soles - Additional information (Details) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
--- | --- | ---
Purchased call options [member] |  |
Transactions in Soles |  |
Closing foreign exchange rate | 0.2764 | 0.2968
Purchased call options [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |
Transactions in Soles |  |
Closing foreign exchange rate | 3.618 | 3.311
Written put options [member] |  |
Transactions in Soles |  |
Closing foreign exchange rate | 0.2759 | 0.2959
Written put options [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |
Transactions in Soles |  |
Closing foreign exchange rate | 3.624 | 3.317

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- Definition Disclosure of Transactions in Soles + References No definition available. + Details
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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
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