XML 283 R258.htm IDEA: XBRL DOCUMENT
v3.21.1

Transactions with related companies - Transactions with related parties (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Related Party Transactions [Abstract] |  |  |
Royalty Expense | $ 11,749 | $ 12,832 | $ 21,388
Minera Yanacocha SRL and subsidiary [Member] |  |  |
Related Party Transactions [Abstract] |  |  |
Royalty Expense |  | 49,000 | 3,600
Minera Yanacocha SRL and subsidiary [Member] | S.M.R.L. Chaupiloma Dos de Cajamarca [Member] |  |  |
Related Party Transactions [Abstract] |  |  |
Royalty Expense | 18,638 | 22,297 | 20,385
Minera Yanacocha SRL and subsidiary [Member] | Newmont Peru S.R.L [Member] |  |  |
Services rendered by [Abstract] |  |  |
Expense arising from exploration for and evaluation of mineral resources | 9,017 | 10,729 | 12,837
Minera Yanacocha SRL and subsidiary [Member] | Newmont USA Limited [Member] |  |  |
Services rendered by [Abstract] |  |  |
Expense arising from exploration for and evaluation of mineral resources | 10,214 | 4,118 | 5,381
Minera Yanacocha SRL and subsidiary [Member] | Newmont International Services [Member] |  |  |
Services rendered by [Abstract] |  |  |
Expense arising from exploration for and evaluation of mineral resources | $ 5,264 | $ 10,822 | $ 5,181

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

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2020-en-r&anchor=para_24_b&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The amount of expense arising from royalties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_85&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_RoyaltyExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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

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

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

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