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Transactions with associates companies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Royalty income | $ 18,638 | $ 22,297 | $ 20,385
Energy income | 3,173 | 3,181 | 3,002
Supplies income | 890 | 1,259 | 27
Minerals income | 211 | 683 | 1,321
Revenue from mining concessions, property, plant and equipment | 0 | 11 | 30
Purchase of supplies from related party | 55 | 9 | 44
Sales of services | 20,285 | 23,661 | 24,001
Interest income on loans made to related party | 114 | 86 | 92
Dividends paid to non-controlling shareholders | 5,140 | 6,500 | 5,560
Energy transmission [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Sales of services | 320 | 287 | 393
Engineering service [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Sales of services | 0 | 0 | 348
Operation and maintenance [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Sales of services | 280 | 287 | 290
Administrative and Management services [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Sales of services | 672 | 359 | 214
Constructions services [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Sales of services | 72 | 4 | 0
Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Dividends received and collected | 3,649 | 4,011 | 7,623
Sociedad Minera Cerro Verde Saa [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Dividends received and collected | 0 | 29,377 | 39,169
Transportadora Callao SA [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Interest income on loans made to related party | 114 | 86 | 92
Newmont Peru Limited [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Dividends paid to non-controlling shareholders | $ 5,140 | $ 6,500 | $ 5,560

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