XML 123 R109.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Basis for preparation, consolidation and accounting policies (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017
Buildings [member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 6 and 20
Buildings [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 5 and 10 years
Buildings [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 5 and 35
Machinery [member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 5 and 10
Machinery [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 25
Vehicles [member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 5
Vehicles [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 4 years
Vehicles [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 7
Fixtures and fittings [member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 10
Fixtures and fittings [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 4 years
Fixtures and fittings [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 7
Computer equipment [member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 4
Computer equipment [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 4 years
Land improvements [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 2 and 4 years
Plant and equipment [Member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 10 years
Other property, plant and equipment [member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 4 years
Other property, plant and equipment [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Between 3 and 25
Asset retirement cost [Member] | Minera Yanacocha SRL and subsidiary [Member] |
Disclosure of basis for preparation, consolidation and accounting policies [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | Useful life of the mine and/or process facilities

X
- References No definition available. + Details
Name: | cik0001013131_DisclosureOfBasisForPreparationConsolidationAndAccountingPoliciesLineItems
Namespace Prefix: | cik0001013131_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=cik0001013131_SociedadMineraCerroVerdeSaaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MachineryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_VehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_FixturesAndFittingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_ComputerEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cik0001013131_LandImprovementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cik0001013131_PlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OtherPropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cik0001013131_AssetRetirementCostMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |