XML 222 R208.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Transactions with associates companies (Details Textual) | 3 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jun. 27, 2016 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($)
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Notional amount | $ 275,000,000 | $ 275,000,000 | $ 275,000,000 |  |
Associates [member] |  |  |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Loans received |  | 606 |  | $ 800 |
Related parties [member] |  |  |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Amounts receivable, related party transactions | $ 47,000 | $ 91,000 |  |  |
Top of range [member] |  |  |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Notional amount |  |  |  |  | $ 800
Minera Yanacocha S.R.L. [Member] |  |  |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Royalty percentage | 3 |  |  |  |
Buenaventura [Member] |  |  |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |  |  |
Notional amount | $ 125 |  |  |  |

X
- References No definition available. + Details
Name: | cik0001013131_DisclosureOfTransactionsWithAssociatesCompaniesLineItems
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of royalty agrees to pay on poduction sold during the year. + References No definition available. + Details
Name: | cik0001013131_RoyaltyPercentage
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amounts receivable resulting from related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 20 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_20&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 18 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_18_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_AmountsReceivableRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of loans received. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_LoansReceived
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_AssociatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=ifrs-full_RelatedPartiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_MineraYanacochaSrlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_BuenaventuraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |