XML 219 R205.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Transactions with associates companies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Royalty income | $ 20,739 | $ 24,339 | $ 32,414
Revenue from rendering of services | 29,697 | 28,782 | 50,839
Revenue from sale of goods, related party transactions | 3,000,000 | 2,300,000 | 900
Interest income on loans and receivables | 1,685 | 4,164 | 2,286
Minera Yanacocha S.R.L. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Dividends received | 0 | 130,950 | 0
Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Dividends received | 9,823 | 11,390 | 6,691
S.M.R.L. Chaupiloma Dos de Cajamarca c [Member] | Minera Yanacocha S.R.L. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Royalty income | 20,739 | 24,339 | 32,414
Consorcio Energetico de Huancavelica S.A. [Member] | Minera Yanacocha S.R.L. [Member] | Operation and maintenance [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 381 | 915 | 1,694
Consorcio Energetico de Huancavelica S.A. [Member] | Minera Yanacocha S.R.L. [Member] | Energy transmission [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 212 | 0 | 0
Consorcio Energetico de Huancavelica S.A. [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 1,332 | 1,152 | 346
Interest income on loans and receivables | 0 | 3 | 19
Purchases of goods, related party transactions | 18 | 10 | 1
Consorcio Energetico de Huancavelica S.A. [Member] | Compania Minera Coimolache S.A. [Member] | Operation and maintenance [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Purchases of property and other assets, related party transactions | 336 | 0 | 0
Buenaventura Ingenieros S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 57 | 0 | 0
Buenaventura Ingenieros S.A. [Member] | Minera Yanacocha S.R.L. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 227 | 177 | 845
Buenaventura Ingenieros S.A. [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 835 | 824 | 471
Purchases of goods, related party transactions | 4 | 0 | 0
Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Amounts receivable, related party transactions | 124,800 | 0 | (124,800)
Compania de Minas Buenaventura S.A.A. [Member] | Minera Yanacocha S.R.L. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from sale of goods, related party transactions | 704 | 1,271 | 2,114
Compania de Minas Buenaventura S.A.A. [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from sale of goods, related party transactions | 2 | 1 | 56
Purchases of goods, related party transactions | 0 | 1 | 29
Minera La Zanja S.R.L. [Member] | Minera Yanacocha S.R.L. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from sale of goods, related party transactions | 710 | 0 | 0
Minera La Zanja S.R.L. [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from sale of goods, related party transactions | 2 | 0 | 74
Purchases of goods, related party transactions | 6 | 10 | 6
Services received, related party transactions | 149 | 200 | 0
Empresa de Generacion Huanza S.A. [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | 2,137 | 1,679 | 1,676
Consorcio Energetico de Huancavelica S.A Electric Power [Member] | Compania Minera Coimolache S.A. [Member] |  |  |
Disclosure Of Transactions with associates companies [Line Items] |  |  |
Revenue from rendering of services | $ 178 | $ 332 | $ 559

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 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 dividends received. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2017-01-01 -Paragraph B12 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2017-03-01&anchor=para_B12_a&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_DividendsReceived
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of interest income on loans and receivables. [Refer: Interest income; Loans and receivables] + 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_InterestIncomeOnLoansAndReceivables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of goods purchased by the entity in related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 21 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_21_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_PurchasesOfGoodsRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of property and other assets purchased by the entity in related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 21 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_21_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of revenue arising from the rendering of services. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IAS -Number 18 -IssueDate 2017-01-01 -Paragraph 35 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_b_ii&doctype=Standard&book=B -URIDate 2017-03-09 Reference 2: 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_RevenueFromRenderingOfServices
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of income arising from royalties. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2018-01-01 -Name IAS -Number 18 -IssueDate 2017-01-01 -Paragraph 35 -Subparagraph b -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=18&date=2017-03-02&anchor=para_35_b_iv&doctype=Standard&book=B -URIDate 2017-03-09 Reference 2: 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_RevenueFromRoyalties
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of revenue arising from the sale of goods in related party transactions. [Refer: Revenue; Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 21 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_21_a&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_RevenueFromSaleOfGoodsRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of services received in related party transactions. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 21 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_21_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ServicesReceivedRelatedPartyTransactions
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cik0001013131_CompaniaMineraCoimolacheSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_SmrlChaupilomaDosDeCajamarcaCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_ConsorcioEnergeticoDeHuancavelicaSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cik0001013131_ExpensesByNatureAxis=cik0001013131_OperationAndMaintenanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | cik0001013131_ExpensesByNatureAxis=cik0001013131_EnergyTransmissionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_BuenaventuraIngenierosSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_SociedadsMinerasCerroVerdeSaaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_CompaniaDeMinasBuenaventuraSaaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_MineraLaZanjaSrlMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_EmpresaDeGeneracionHuanzaSaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_ConsorcioEnergeticoDeHuancavelicaSaElectricPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |