XML 105 R141.htm IDEA: XBRL DOCUMENT v3.20.1

Investments in associates and joint ventures - Net share in profit (loss) of investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investments in associates and joint ventures
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method	$ 47,710	$ (1,144)	$ 13,207
Minera Yanacocha S.R.L. [Member]
Investments in associates and joint ventures
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method	(41,580)	(35,582)	(76,585)
Sociedad Minera Cerro Verde Saa [Member]
Investments in associates and joint ventures
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method	76,451	23,444	68,521
Compania Minera Coimolache S.A. [Member]
Investments in associates and joint ventures
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method	12,883	10,994	21,271
Other minor investments [Member]
Investments in associates and joint ventures
Share of profit (loss) from continuing operations of associates and joint ventures accounted for using equity method	$ (44)	$ 0	$ 0

X

- Definition

Investments in associates and joint ventures

+ References

No definition available.

+ Details

Name:	bvn_DisclosureOfInvestmentsInAssociatesLineItems
Namespace Prefix:	bvn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entity's share of the profit (loss) from continuing operations of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Continuing operations [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss) from continuing operations]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2019-01-01
-Paragraph B16
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2019-en-r&anchor=para_B16_a&doctype=Appendix&subtype=B
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_ShareOfProfitLossOfContinuingOperationsOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bvn_MineraYanacochaSrlMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bvn_SociedadsMinerasCerroVerdeSaaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bvn_CompaniaMineraCoimolacheSaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInAssociatesAxis=bvn_OtherMinorInvestmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: