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Trade and other payables (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure of Trade and other payables [Line Items] |
Disclosure of detailed information about trade and other payables,net [Text Block] |
| (a) | This caption is made up as follows:
|  | 2018 |  |  | 2017 |
|  | US$(000) |  |  | US$(000) |
Trade payables (b) |  |  |  |  |  |  |  |
Domestic suppliers |  |  | 154,998 |  |  |  | 194,742 |
Related entities, note 30(b) |  |  | 36 |  |  |  | 15 |
|  |  | 155,034 |  |  |  | 194,757 |
Other payables |  |  |  |  |  |  |  |
Remuneration and similar benefits payable |  |  | 10,531 |  |  |  | 11,585 |
Taxes payable |  |  | 9,102 |  |  |  | 9,405 |
Interest payable |  |  | 7,464 |  |  |  | 7,152 |
Royalties payable to the Peruvian State |  |  | 2,171 |  |  |  | 4,571 |
Dividends payable (c) |  |  | 663 |  |  |  | 730 |
Related entities, note 30(b) |  |  | 20 |  |  |  | 62 |
Other liabilities |  |  | 3,738 |  |  |  | 5,756 |
|  |  | 33,689 |  |  |  | 39,261 |
Total trade and other payables |  |  | 188,723 |  |  |  | 234,018 |
Classification by maturity: |  |  |  |  |  |  |  |
Current portion |  |  | 188,084 |  |  |  | 233,355 |
Non-current portion |  |  | 639 |  |  |  | 663 |
Total trade and other payables |  |  | 188,723 |  |  |  | 234,018 |
Classification by nature: |  |  |  |  |  |  |  |
Financial payables |  |  | 177,450 |  |  |  | 220,042 |
Non-financial payables |  |  | 11,273 |  |  |  | 13,976 |
Total trade and other payables |  |  | 188,723 |  |  |  | 234,018 |
| (b) | Trade payables arise mainly from the acquisition of material, supplies and spare parts and services provided by third parties. These obligations have current maturities, accrue no interest and are not secured.
Disclosure of detailed information of movement of dividends payable [Text Block] |
| (c) | The movement of dividends payable is presented below:
|  | 2018 |  |  | 2017 |  |  | 2016 |
|  | US$(000) |  |  | US$(000) |  |  | US$(000) |
Beginning balance |  |  | 730 |  |  |  | 1,018 |  |  |  | 1,044 |
Declared dividends to controlling shareholders, note 17(d) |  |  | 22,860 |  |  |  | 22,099 |  |  |  | 7,621 |
Dividends paid to controlling shareholders |  |  | (22,860 | ) |  |  | (22,099 | ) |  |  | (7,621 | )
Declared dividends to non-controlling shareholders |  |  | 5,560 |  |  |  | 6,036 |  |  |  | 7,400 |
Dividends paid to non-controlling shareholders |  |  | (5,560 | ) |  |  | (6,036 | ) |  |  | (7,400 | )
Expired dividends |  |  | (44 | ) |  |  | (327 | ) |  |  | (30 | )
Other minor |  |  | (23 | ) |  |  | 39 |  |  |  | 4 |
Final balance |  |  | 663 |  |  |  | 730 |  |  |  | 1,018 |
Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of Trade and other payables [Line Items] |
Disclosure of detailed information about trade and other payables,net [Text Block] |
| (a) | This caption is made up as follows:
|  | 2018 |  |  | 2017 |
|  | US$(000) |  |  | US$(000) |
Trade payables (b) |  |  |  |  |  |  |  |
Domestic suppliers |  |  | 48,847 |  |  |  | 43,108 |
Related entities, note 22 |  |  | 10,846 |  |  |  | 9,962 |
|  |  | 59,693 |  |  |  | 53,070 |
Other payables |  |  |  |  |  |  |  |
Remuneration and similar benefits payable |  |  | 22,907 |  |  |  | 27,419 |
Royalties payable to the Peruvian State |  |  | 136 |  |  |  | 726 |
Taxes payable |  |  | 4,280 |  |  |  | 2,605 |
|  |  | 27,323 |  |  |  | 30,750 |
|  |  | 87,016 |  |  |  | 83,820 |
| (b) | Trade payables arise mainly from the acquisition of materials, supplies and spare parts and services provided by third parties. These obligations have current maturities, accrue no interest, are not secured and are mostly denominated in U.S. dollars.

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