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Inventories - Allowance for obsolescence of material and supplies (Details) - Minera Yanacocha SRL and subsidiary [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventories
Opening balance	$ 6,595	$ 6,098	$ 7,515
Provision for impairment of materials and supplies	1,037	1,459	1,898
Reversal of provision for impairment of materials and supplies	(1,914)	(962)	(3,315)
Ending balance	$ 5,718	$ 6,595	$ 6,098

X

- Definition

The amount of allowance for obsolescence of materials and supplies.

+ References

No definition available.

+ Details

Name:	bvn_AllowancesForObsolescenceOfMaterialsAndSupplies
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Inventory, net

+ References

No definition available.

+ Details

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

X

- Definition

The amount of provision for impairment of materials and supplies made during the year.

+ References

No definition available.

+ Details

Name:	bvn_ProvisionForImpairmentOfMaterialsAndSupplies
Namespace Prefix:	bvn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Reversal of provision for impairment of materials and supplies.

+ References

No definition available.

+ Details

Name:	bvn_ReversalOfProvisionForImpairmentOfMaterialsAndSupplies
Namespace Prefix:	bvn_
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: