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Transactions with associates companies (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure Of Transactions with associates companies [Abstract] |
Disclosure of detailed information of transactions with associates companies [Text Block] |
| (a) | The Group has carried out the following transactions with its associates in the years 2018, 2017 and 2016:
|  | 2018 |  |  | 2017 |  |  | 2016 |
|  | US$(000) |  |  | US$(000) |  |  | US$(000) |
Revenues from: |  |  |  |  |  |  |  |  |  |  |  |
Royalties |  |  | 20,385 |  |  |  | 20,739 |  |  |  | 24,339 |
Revenues from sale of: |  |  |  |  |  |  |  |  |  |  |  |
Energy |  |  | 3,002 |  |  |  | 2,137 |  |  |  | 1,679 |
Mineral |  |  | 1,321 |  |  |  | 1,414 |  |  |  | 1,271 |
Mining concessions, property, plant and equipment |  |  | 30 |  |  |  | 336 |  |  |  | - |
Supplies |  |  | 27 |  |  |  | 4 |  |  |  | 1 |
Purchase of: |  |  |  |  |  |  |  |  |  |  |  |
Supplies |  |  | 44 |  |  |  | 27 |  |  |  | 21 |
Services rendered to: |  |  |  |  |  |  |  |  |  |  |  |
Services of energy transmission |  |  | 393 |  |  |  | 559 |  |  |  | - |
Engineering services |  |  | 348 |  |  |  | 1,119 |  |  |  | 1,001 |
Operation and maintenance services |  |  | 290 |  |  |  | 593 |  |  |  | 1,247 |
Administrative and Management services |  |  | 214 |  |  |  | 149 |  |  |  | 200 |
Constructions services |  |  | - |  |  |  | 1,332 |  |  |  | 1,152 |
Dividends received and collected from: |  |  |  |  |  |  |  |  |  |  |  |
Sociedad Minera Cerro Verde S.A.A. |  |  | 39,169 |  |  |  | - |  |  |  | - |
Compañía Minera Coimolache S.A. |  |  | 7,623 |  |  |  | 9,823 |  |  |  | 11,390 |
Minera Yanacocha S.R.L. |  |  | - |  |  |  | - |  |  |  | 130,950 |
Loans collected to: |  |  |  |  |  |  |  |  |  |  |  |
Sociedad Minera Cerro Verde S.A.A. |  |  | - |  |  |  | 124,800 |  |  |  | - |
Interest income: |  |  |  |  |  |  |  |  |  |  |  |
Transportadora Callao S.A. |  |  | 92 |  |  |  | - |  |  |  | - |
Sociedad Minera Cerro Verde S.A.A. |  |  | - |  |  |  | 1,685 |  |  |  | 4,161 |
Compañía Minera Coimolache S.A. |  |  | - |  |  |  | - |  |  |  | 3 |
Dividends paid to non-controlling shareholders: |  |  |  |  |  |  |  |  |  |  |  |
Newmont Peru Limited - Sucursal del Perú |  |  | 5,560 |  |  |  | 6,036 |  |  |  | 7,400 |
Disclosure Detailed information of accounts receivable and payable fromto associates [Text Block] |
| (b) | As a result of the transactions indicated in the paragraph (a), the Group had the following accounts receivable and payable from/to associates:
|  | 2018 |  |  | 2017 |
|  | US$(000) |  |  | US$(000) |
Trade and other receivables |  |  |  |  |  |  |  |
Minera Yanacocha S.R.L. |  |  | 6,791 |  |  |  | 6,740 |
Compañía Minera Coimolache S.A. |  |  | 386 |  |  |  | 592 |
Sociedad Minera Cerro Verde S.A.A. |  |  | - |  |  |  | 16 |
|  |  | 7,177 |  |  |  | 7,348 |
Other receivables |  |  |  |  |  |  |  |
Transportadora Callao S.A. (e) |  |  | 2,471 |  |  |  | - |
Compañía Minera Coimolache S.A. |  |  | 1,234 |  |  |  | 732 |
|  |  | 3,705 |  |  |  | 732 |
|  |  | 10,882 |  |  |  | 8,080 |
Trade and other payables |  |  |  |  |  |  |  |
Compañía Minera Coimolache S.A. |  |  | 36 |  |  |  | 15 |
Other payables |  |  |  |  |  |  |  |
Compañía Minera Coimolache S.A. |  |  | - |  |  |  | 42 |
Other |  |  | 20 |  |  |  | 20 |
|  |  | 20 |  |  |  | 62 |
|  |  | 56 |  |  |  | 77 |
Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [text block] | The Group’s key executives’ compensation (including the related income taxes assumed by the Group) for the years 2018 and 2017 are presented below:
|  | 2018 |  |  | 2017 |
|  | US$(000) |  |  | US$(000) |
Accounts payable: |  |  |  |  |  |  |  |
Directors’ remuneration |  |  | 2,192 |  |  |  | 1,641 |
Salaries |  |  | 1,057 |  |  |  | 1,257 |
Directors’ compensations |  |  | 2,628 |  |  |  | 1,200 |
Provision for bonus to officers |  |  | 6,345 |  |  |  | 1,899 |
Total |  |  | 12,222 |  |  |  | 5,997 |
Disbursements: |  |  |  |  |  |  |  |
Salaries |  |  | 12,908 |  |  |  | 10,530 |

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- Definition The disclosure of amounts incurred by the entity for provision of key management personnel services that are provided by separate management entities. [Refer: Key management personnel of entity or parent [member]; Separate management entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2018-01-01 -Paragraph 18A -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2018-03-01&anchor=para_18A&doctype=Standard -URIDate 2018-03-16 + Details
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