XML 104 R90.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Costs applicable to sales (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Minera Yanacocha SRL and subsidiary [Member] |
Disclosure Of Detailed Information About Cost Of Sales [Text block] [Text Block] | This caption is made up as follows:
|  | 2017 |  | 2016 |  | 2015 |
|  | US$(000) |  | US$(000) |  | US$(000) |
Beginning balance of finished goods and in-process |  |  | 446,503 |  |  | 544,325 |  |  | 660,763 |
Beginning balance of provision for net realizable value, note 8(b) |  |  | (84,374) |  |  | (90,298) |  |  | (163,094) |
Consumption of supplies |  |  | 240,881 |  |  | 228,376 |  |  | 210,384 |
Personnel expenses |  |  | 99,702 |  |  | 87,258 |  |  | 102,867 |
Other services |  |  | 66,408 |  |  | 73,779 |  |  | 82,787 |
Maintenance |  |  | 24,033 |  |  | 36,213 |  |  | 38,646 |
Power |  |  | 23,565 |  |  | 27,270 |  |  | 27,713 |
Depreciation and amortization |  |  | 87,783 |  |  | 140,712 |  |  | 223,142 |
Workers' profit participation |  |  | 1,242 |  |  | 12,394 |  |  | 28,852 |
Reclamation expenses related to leach pads, note 12(b) |  |  | 124,124 |  |  | 78,494 |  |  | - |
Ending balance of provision for net realizable value, note 8(b) |  |  | 62,540 |  |  | 84,374 |  |  | 90,298 |
Ending balance of finished goods and in-process |  |  | (345,489) |  |  | (446,503) |  |  | (544,325) |
|  |  | 746,918 |  |  | 776,394 |  |  | 758,033 |

X
- Definition The disclosure of detailed information about cost of sales. + References No definition available. + Details
Name: | cik0001013131_DisclosureOfDetailedInformationAboutCostOfSalesTextBlock
Namespace Prefix: | cik0001013131_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_MineraYanacochaSrlAndSubsidiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |