XML 158 R133.htm IDEA: XBRL DOCUMENT
v3.21.1

Inventories, net - Impairment of value of inventory (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Inventories, net |  |  |
Beginning Balance | $ 25,402 | $ 23,163 | $ 11,603
Provision for impairment of finished and in progress goods, note 21(a) | 8,920 | 7,329 |
Reversal for impairment of finished and in progress goods, note 21(a) | 3,866 | 9,472 | 119
Provision for impairment of spare parts and supplies, note 26(a) | 17,266 | 15,703 | 11,704
Reversal for impairment of spare parts and supplies, note 26(a) | (15,762) | (11,641) | (4,665)
Sale of mining unit, note 1(e) | (1,220) | 0 | 0
Provision for impairment of spare parts and supplies | 1,220 | 843 | 0
Reversal for impairment of spare parts and supplies | (843) | (523) | 0
Final balance | $ 31,117 | $ 25,402 | $ 23,163

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

X
- Definition Impairment of Value of Inventory Beginning Balance + References No definition available. + Details
Name: | bvn_ImpairmentOfValueOfInventoryBeginningBalance
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition It represents amount of provision created for Finished goods + References No definition available. + Details
Name: | bvn_ProvisionForImpairmentOfFinishedAndProgressGoods
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Reversal in Provision for Impairment of Inventories + References No definition available. + Details
Name: | bvn_ProvisionForImpairmentOfInventoryOfSparePartsAndSupplies
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Provision for Impairment of Spare Parts and Supplies + References No definition available. + Details
Name: | bvn_ProvisionForImpairmentOfSparePartsAndSupplies
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of reversal for impairment of finished and in progress goods + References No definition available. + Details
Name: | bvn_ReversalForImpairmentOfFinishedAndInProgressGoods
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reversal for Impairment of Spare parts and Supplies + References No definition available. + Details
Name: | bvn_ReversalForImpairmentOfSparePartsAndSupplies
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reversal from Impairment of Spare Parts and Supplies. + References No definition available. + Details
Name: | bvn_ReversalFromImpairmentOfSparePartsAndSupplies
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Transfer from Mining units Held For Sale + References No definition available. + Details
Name: | bvn_TransfersFromMiningunitsHeldForSale
Namespace Prefix: | bvn_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration