XML 126 R235.htm IDEA: XBRL DOCUMENT v3.20.1

Transactions with related companies - Transactions with related parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transactions [Abstract]
Royalty Expense	$ 12,832	$ 21,388	$ 30,884
Minera Yanacocha SRL and subsidiary [Member]
Related Party Transactions [Abstract]
Royalty Expense		23,000	26,000
Minera Yanacocha SRL and subsidiary [Member] | S.M.R.L. Chaupiloma Dos de Cajamarca [Member]
Related Party Transactions [Abstract]
Royalty Expense	22,297	20,385	20,739
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	10,729	12,837	8,985
Minera Yanacocha SRL and subsidiary [Member] | Newmont USA Limited [Member]
Services rendered by [Abstract]
Expense arising from exploration for and evaluation of mineral resources	4,118	5,381	5,607
Minera Yanacocha SRL and subsidiary [Member] | Newmont International Services [Member]
Services rendered by [Abstract]
Expense arising from exploration for and evaluation of mineral resources	$ 10,822	$ 5,181	$ 281

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 2019-01-01
-Paragraph 24
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2019-en-r&anchor=para_24_b&doctype=Standard
-URIDate 2019-03-27

+ 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 2019-01-01
-Paragraph 85
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard
-URIDate 2019-03-27

+ 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: