XML 119 R99.htm IDEA: XBRL DOCUMENT
v3.26.1

Other financial instruments (Details 4) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the year | $ (13,670) | $ (16,064)
Changes in fair value | 9,608 | 81
Foreign exchanges effects | (1,496) | 2,313
Energy forward contracts (Megawatts) |  |
Balance at the end of the year | (5,558) | (13,670)
Notional [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Balance at the beginning of the year | 747,498 | 688,877
Changes in fair value |  |
Foreign exchanges effects |  |
Energy forward contracts (Megawatts) | (95,314) | 58,621
Balance at the end of the year | $ 652,184 | $ 747,498

X
- Definition The gains (losses) recognised in other comprehensive income on change in value of forward elements of forward contracts, net of tax, before reclassification adjustments. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 91 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_91_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_GainsLossesOnChangeInValueOfForwardElementsOfForwardContractsNetOfTax
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A component of equity representing the accumulated change in the value of the forward elements of forward contracts when separating the forward element and spot element of a forward contract and designating as the hedging instrument only the changes in the spot element. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 9 -IssueDate 2024-01-01 -Paragraph 6.5.16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=9&code=ifrs-tx-2024-en-r&anchor=para_6.5.16&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ReserveOfChangeInValueOfForwardElementsOfForwardContracts
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The element represents changes in fair value during the year. + References No definition available. + Details
Name: | nexa_ChangesInFairValue
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The element represents foreign exchange effects + References No definition available. + Details
Name: | nexa_ForeignExchangeEffect
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=nexa_NotionalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |