XML 239 R225.htm IDEA: XBRL DOCUMENT
v3.19.1

Stockpiles and ore on leach pads, net (Details) - Minera Yanacocha SRL and subsidiary [Member] - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Current portion - |  |
Stockpiles | $ 35,065 | $ 77,296
Ore on leach pads | 106,931 | 159,930
Provision for net realizable value adjustment | (41,403) | (40,588)
Current ore stockpiles | 100,593 | 196,638
Non-current portion - |  |
Stockpiles | 41,814 | 32,362
Ore on leach pads | 144,688 | 50,350
Provision for net realizable value adjustment | (47,724) | (21,952)
Non-current ore stockpiles | $ 138,778 | $ 60,760

X
- Definition The Balance amount of Ore on leach pads current outsanding during the year. + References No definition available. + Details
Name: | cik0001013131_CurrentOreOnLeachPads
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of current provision for net realizable value adjustment. + References No definition available. + Details
Name: | cik0001013131_CurrentProvisionForNetRealizableValueAdjustment
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The Balance amount of Stockpiles current outsanding during the year. + References No definition available. + Details
Name: | cik0001013131_CurrentStockpiles
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The Balance amount of Ore on leach pads current outsanding during the year. + References No definition available. + Details
Name: | cik0001013131_NoncurrentOreOnLeachPads
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of non-current provision for net realizable value adjustment. + References No definition available. + Details
Name: | cik0001013131_NoncurrentProvisionForNetRealizableValueAdjustment
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The Balance amount of Stockpiles current outsanding during the year. + References No definition available. + Details
Name: | cik0001013131_NoncurrentStockpiles
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_CurrentInventoriesArisingFromExtractiveActivitiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A classification of current inventory representing the amount of ore stockpiles. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2018-01-01 -Paragraph 37 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=para_37&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_CurrentOreStockpiles
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_NoncurrentInventoriesArisingFromExtractiveActivitiesAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A classification of non-current inventory representing the amount of ore stockpiles. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2018-01-01 -Paragraph 37 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=para_37&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_NoncurrentOreStockpiles
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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