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Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles (Details) - USD ($) $ in Thousands | 12 Months Ended | 48 Months Ended
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2016 | Dec. 31, 2016
Disclosure of Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles [Line Items] |  |  |
Impairment loss |  | $ 0 |
US GAAP [Member] | Minimum |  |  |
Disclosure of Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles [Line Items] |  |  |
Percentage of Events Likely To Occur | 70.00% |  |
US GAAP [Member] | Maximum |  |  |
Disclosure of Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles [Line Items] |  |  |
Percentage of Events Likely To Occur | 80.00% |  |
Conga [Member] |  |  |
Disclosure of Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles [Line Items] |  |  |
Impairment loss |  |  | $ 1,126,543
Yanacocha mine [Member] |  |  |
Disclosure of Summary of significant differences between accounting principles followed by the Company and U.S. Generally Accepted Accounting Principles [Line Items] |  |  |
Impairment loss |  | $ 933,200 | $ 1,342,645

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