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v3.26.1

Other financial instruments (Details 3) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
IfrsStatementLineItems [Line Items] |  |
Other comprehensive (loss) income | $ (5,150) | $ (872)
Cost of sales | (16,807) | (33,063)
Net revenues | 7,916 | 31,140
Other income and expenses, net | 201 | 746
Realized (loss) gain | 1,687 | 4,762
Net financial results | 12,806 | 1,371
Hedging Programs For Concentrate [Member] | Zinc Forward [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Other comprehensive (loss) income | (6,481) |
Hedging Programs For Mismatches Of Quotation Periods [Member] | Zinc Forward [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Other comprehensive (loss) income | 1,331 | (872)
Cost of sales | (16,807) | (33,063)
Net revenues | 6,471 | 27,514
Other income and expenses, net | 201 | 746
Realized (loss) gain | 8,584 | 10,299
Hedging Programs For Sales Of Zinc At Fixed Price [Member] | Zinc Forward [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Net revenues | 1,445 | 3,626
Realized (loss) gain | (1,132) | (4,449)
Hedging Programs For Interest Rate Risk I C P A [Member] | Zinc Forward [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Realized (loss) gain | 343 | 148
Net financial results | (554) | 135
Hedging Programs For Interest Rate Risk E U R [Member] | Zinc Forward [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Realized (loss) gain | (6,108) | (1,236)
Net financial results | $ 13,360 | $ 1,236

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

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- Definition The element represents cost of sales on derivative instrument. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The element represents net financial result son derivative instruments. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The element represents net revenues on derivative instrument. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The element represents other comprehensive income or loss on derivative instrument. + References No definition available. + Details
Name: | nexa_OtherComprehensiveIncomeOrLossOnDerivativeInstrument
Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The element represents other income and expenses on derivative instrument. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The element represents realized gain or loss on derivative instruments. + References No definition available. + Details
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Namespace Prefix: | nexa_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
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- Details
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Balance Type: |
Period Type: |