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Cost of sales, without considering depreciation and amortization - Costs applicable to sales (Details) - New - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of cost of sales [Line Items] |  |  |
Royalties expenses | $ 11,749 | $ 12,832 | $ 21,388
Depreciation and amortization | 189,620 | 226,335 | 238,879
Cost of sales of goods, excluding depreciation and amortization | 652,613 | 799,582 | 967,696
Cost of inventory recognized in cost of inventory | 299,955 | 326,790 | 327,459
Minera Yanacocha Srl And Subsidiaries [Member] |  |  |
Disclosure of cost of sales [Line Items] |  |  |
Beginning balance of finished goods and in-process | 302,382 | 341,213 | 345,489
Beginning balance of provision for net realizable value, note 8(b) | 47,925 | 89,127 | 62,540
Consumption of supplies | 138,041 | 200,036 | 215,863
Personnel expenses | 61,298 | 72,325 | 82,645
Other services | 31,864 | 41,120 | 43,671
Maintenance | 17,415 | 26,645 | 22,585
Power | 20,241 | 23,619 | 24,203
Depreciation and amortization | 140,252 | 144,862 | 156,212
Workers' profit participation | 17,199 | 12,804 | 3,837
Incremental costs related to COVID-19 pandemic and care and maintenance | 43,672 |  |
Provision for mine closure, note 12 | 124,780 | 142,129 | 16,285
Ending balance of provision for net realizable value, note 8(b) | 13,287 | 47,925 | 89,127
Ending balance of finished goods and in-process | 222,258 | 302,382 | 341,213
Cost of sales of goods, excluding depreciation and amortization | 666,456 | 692,721 | 619,424
Minera Yanacocha Srl And Subsidiaries [Member] | S.M.R.L. Chaupiloma Dos de Cajamarca [Member] |  |  |
Disclosure of cost of sales [Line Items] |  |  |
Royalties expenses | 18,638 | 22,297 | 20,385
Minera Yanacocha Srl And Subsidiaries [Member] | Government [member] |  |  |
Disclosure of cost of sales [Line Items] |  |  |
Royalties expenses | $ 7,570 | $ 9,255 | $ 2,875

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