Nexa Resources S.A. (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 00090 - Document - Document and Entity Information Network

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3 Document and Entity Information Abstract nexa:DocumentAndEntityInformationAbstract
4 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
5 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
8 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
9 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
10 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
11 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
12 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
13 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
14 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
15 Entity Shell Company Concept (Yes/No) For Period dei:EntityShellCompany
16 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
17 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
18 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
19 00100 - Statement - Consolidated balance sheet Network

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21 Consolidated balance sheet Abstract ifrs-full:StatementOfFinancialPositionAbstract
22 Assets Abstract ifrs-full:AssetsAbstract
23 Current assets Abstract ifrs-full:CurrentAssetsAbstract
24 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
25 Financial investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
26 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:CurrentDerivativeFinancialAssets
27 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
28 Inventory Concept (Monetary) As Of Debit ifrs-full:Inventories
29 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherCurrentAssets
30 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
31 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
32 Financial investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
33 Derivative financial instruments Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
34 Related parties Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesDueFromRelatedParties
35 Deferred taxes Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
36 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
37 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociatesAccountedForUsingEquityMethod
38 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
39 Intangible assets Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
40 Total non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
41 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
42 Liabilities and shareholders' equity Abstract ifrs-full:EquityAndLiabilitiesAbstract
43 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
44 Loans and financing Concept (Monetary) As Of Credit ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings
45 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
46 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
47 Confirming payable Concept (Monetary) As Of Credit nexa:CurrentConfirmingPayables
48 Salaries and payroll charges Concept (Monetary) As Of Credit ifrs-full:ShorttermEmployeeBenefitsAccruals
49 Dividends payable Concept (Monetary) As Of Credit ifrs-full:CurrentDividendPayables
50 Related parties Concept (Monetary) As Of Credit nexa:CurrentLiabilitiesToRelatedParties
51 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
52 Contractual liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
53 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherCurrentLiabilities
54 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
55 Non-current liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
56 Loans and financing Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
57 Derivative financial instruments Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
58 Related parties Concept (Monetary) As Of Credit nexa:NonCurrentLiabilitiesToRelatedParties
59 Provisions Concept (Monetary) As Of Credit ifrs-full:OtherLongtermProvisions
60 Deferred taxes Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
61 Contractual liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
62 Other liabilities Concept (Monetary) As Of Credit ifrs-full:OtherNoncurrentLiabilities
63 Total non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
64 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
65 Shareholders' equity Abstract ifrs-full:EquityAbstract
66 Capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
67 Treasury shares Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
68 Share premium Concept (Monetary) As Of Credit ifrs-full:SharePremium
69 Additional paid in capital Concept (Monetary) As Of Credit ifrs-full:AdditionalPaidinCapital
70 Retained earnings (cumulative deficit) Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
71 Accumulated other comprehensive loss Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
72 Total equity attributable to Nexa's shareholders Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
73 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
74 Total shareholders' equity Concept (Monetary) As Of Credit ifrs-full:Equity
75 Total liabilities and shareholders' equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
76 00200 - Statement - Consolidated income statement Network

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77 Implied Table Table

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78 Consolidated income statement Abstract ifrs-full:IncomeStatementAbstract
79 Net revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
80 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
81 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
82 Operating expenses Abstract ifrs-full:ExpenseByNatureAbstract
83 Selling Concept (Monetary) For Period Debit ifrs-full:SellingExpense
84 General and administrative Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
85 Mineral exploration and project development Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
86 Other income and expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
87 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
88 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
89 Net financial results Abstract nexa:NetFinancialResultsAbstract
90 Financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
91 Financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
92 Foreign exchange (loss) gain, net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
93 Net financial results Concept (Monetary) For Period Credit nexa:FinancialResultsNet
94 Results of investees Abstract nexa:ProfitLossOfInvesteesAbstract
95 Share in the results of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
96 Income before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
97 Income tax Abstract nexa:TaxExpenseIncomeAbstract
98 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
99 Deferred Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
100 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
101 Attributable to NEXA's shareholders Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
102 Attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
103 Average number of outstanding shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
104 Basic and diluted earnings per share (in dollars per share) Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
105 00300 - Statement - Consolidated statement of comprehensive income Network

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106 Implied Table Table

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107 Consolidated statement of comprehensive income Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
108 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
109 Other comprehensive income (loss) net of taxes, all of which can be reclassified to the income statement Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
110 Cash flow hedge accounting Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
111 Translation adjustment of foreign subsidiaries Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
112 Total other comprehensive income (loss) net of taxes, all of which can be reclassified to the income statement Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTax
113 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
114 Comprehensive income attributable to NEXA's shareholders Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
115 Comprehensive income attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
116 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
117 00400 - Statement - Consolidated statement of changes in shareholders' equity Network

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118 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
119 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
120 Equity [member] Member ifrs-full:EquityMember
121 Capital Member ifrs-full:IssuedCapitalMember
122 Treasury shares Member ifrs-full:TreasurySharesMember
123 Share premium Member ifrs-full:SharePremiumMember
124 Additional paid in capital Member ifrs-full:AdditionalPaidinCapitalMember
125 Retained earnings (cumulative deficit) Member ifrs-full:RetainedEarningsMember
126 Accumulated other comprehensive income (loss) Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
127 Total attributable to Nexa's shareholders Member ifrs-full:EquityAttributableToOwnersOfParentMember
128 Non-controlling interests Member ifrs-full:NoncontrollingInterestsMember
129 Consolidated statement of changes in equity LineItems ifrs-full:StatementOfChangesInEquityLineItems
130 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
131 Impact of the adoption of IFRS 9 Concept (Monetary) As Of Credit nexa:IfrsCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
132 At January 1, 2018 after impacts of IFRS 9 adoption Concept (Monetary) As Of Credit nexa:EquityAdjustedForCumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
133 Total comprehensive income for the year Abstract ifrs-full:ComprehensiveIncomeAbstract
134 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
135 Other comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
136 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
137 Total contributions by and distributions to shareholders Abstract nexa:ContributionsByDistributionsToShareholdersAbstract
138 Disbursements from equity transactions with non-controlling shareholders Concept (Monetary) For Period Debit nexa:DisbursementsFromEquityTransactionsWithNonControllingShareholders
139 Reversion of Put Option Concept (Monetary) For Period Credit nexa:IncreaseThroughReversionOfPutOption
140 Capital reduction related to Pollarix acquisition Concept (Monetary) For Period Debit nexa:DecreaseInEquityThroughCapitalReductionOnAcquisition
141 Purchase of Pollarix Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
142 Constitution of share premium Concept (Monetary) For Period Credit nexa:ConstitutionOfSharePremiumEquity
143 Reimbursement of share premium Concept (Monetary) For Period Debit nexa:DecreaseThroughReimbursementOfSharePremium
144 Repurchase of the Company's own shares Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
145 Increase (decrease) in non-controlling interests, net Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
146 Increase in participation in associates Concept (Monetary) For Period Credit nexa:IncreaseThroughParticipationInAssociates
147 Dividend distribution Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
148 Issuance of new shares / Proceed from initial public offering, net of underwritter expenses Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
149 Put option of shares Concept (Monetary) For Period Debit nexa:DecreaseThroughPutOptionOfShares
150 Energy Assets compensation Concept (Monetary) For Period Debit nexa:DecreaseThroughEnergyAssetsTransactions
151 Cancellation of the loan due by NEXA BR to VSA Concept (Monetary) For Period Credit nexa:IncreaseThroughCancellationOfLoanDueBySubsidiaries
152 Acquisition of shares from non-controlling shareholders Concept (Monetary) For Period Debit nexa:AcquisitionOfSharesFromNonControllingShareholders
153 Total contributions by and distributions to shareholders Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughTransactionsWithOwners
154 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
155 00500 - Statement - Consolidated statement of cash flows Network

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156 Implied Table Table

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157 Consolidated statement of cash flows Abstract ifrs-full:StatementOfCashFlowsAbstract
158 Cash flow from operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
159 Income before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
160 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
161 Interest and foreign exchange (gain) or loss Concept (Monetary) For Period Debit nexa:AdjustmentsForInterestIndexationAndExchangeVariations
162 Loss on sale of property, plant and equipment and intangible assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
163 Impairment (reversal) of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
164 Changes in provisions Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
165 Tax credits Concept (Monetary) For Period Debit nexa:AdjustmentsForTaxCredit
166 Gain on sale of investment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
167 Share in the results of associates Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForUndistributedProfitsOfInvestmentsAccountedForUsingEquityMethod
168 Changes in operating assets and liabilities Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
169 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsOperatingActivities
170 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
171 Net cash provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
172 Cash flow from investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
173 Acquisitions of property, plant and equipment and intangible assets Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
174 Changes in financial investments Concept (Monetary) For Period Debit nexa:IncreaseDecreaseThroughChangesInFinancialInvestments
175 Loan received from related parties Concept (Monetary) For Period Debit ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties
176 Advance paid for Pollarix acquisition Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
177 Proceed from capital reduction of investees Concept (Monetary) For Period Debit nexa:ProceedFromCapitalReductionOfInvestees
178 Proceeds from sale of non-current assets Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalsOfPropertyPlantAndEquipmentIntangibleAssetsOtherThanGoodwillInvestmentPropertyAndOtherNoncurrentAssets
179 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
180 Cash flow from financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
181 Proceeds from new loans and financing Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
182 Payments of loans and financing Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
183 Capital reduction related to Pollarix acquisition Concept (Monetary) For Period Credit nexa:CapitalReductionRelatedToAcquisitions
184 Dividends distribution Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
185 Reimbursement of share premium Concept (Monetary) For Period Credit nexa:PaymentsForReimbursementOfSharePremium
186 Proceeds from initial public offering, net of underwriter expenses Concept (Monetary) For Period Debit nexa:ProceedsFromInitialPublicOfferingNetOfUnderwriterExpenses
187 Issuance of new shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
188 Proceeds from transactions with related parties Concept (Monetary) For Period Debit ifrs-full:CashAdvancesAndLoansFromRelatedParties
189 Acquisition of shares from non-controlling shareholders Concept (Monetary) For Period Credit ifrs-full:PaymentsFromChangesInOwnershipInterestsInSubsidiaries
190 Repurchase of the Company's own shares Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
191 Disbursement from equity transactions with non-controlling shareholders Concept (Monetary) For Period Credit nexa:PaymentsMadeDisbursementFromEquityTransactionsWithNonControllingShareholders
192 Net cash provided by (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
193 Effects of foreign exchange rates on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
194 Increase in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
195 Cash and cash equivalents at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
196 Cash and cash equivalents at the end of the year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
197 10101 - Disclosure - General information Network

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200 General information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
201 10201 - Disclosure - Basis of preparation of the consolidated financial statements Network

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202 Implied Table Table

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205 10301 - Disclosure - Changes in accounting policies and disclosures Network

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213 10501 - Disclosure - Financial risk management Network

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217 10601 - Disclosure - Derivative financial instruments Network

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221 10701 - Disclosure - Financial instruments by category Network

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229 10901 - Disclosure - Financial investments Network

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233 11001 - Disclosure - Trade accounts receivable Network

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237 11101 - Disclosure - Inventory Network

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288 Expenses by nature Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExpensesByNatureExplanatory
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293 12501 - Disclosure - Other income and expenses, net Network

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297 12601 - Disclosure - Net financial results Network

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299 Net financial results Abstract nexa:NetFinancialResultsAbstract
300 Net financial results Concept (Text Block (HTML)) For Period nexa:DisclosureOfNetFinancialResultsTextBlock
301 12701 - Disclosure - Long-term commitments Network

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302 Implied Table Table

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313 Subsidiaries Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSubsidiariesExplanatory
314 Joint operations Concept (Text Block (HTML)) For Period nexa:DisclosureOfAccountingPolicyForJointOperationsPolicyTextBlock
315 Foreign currency translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
316 Transactions with non-controlling interests Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTransactionsWithNoncontrollingInterestsExplanatory
317 Derivatives Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDerivativeFinancialInstrumentsExplanatory
318 Financial instruments by category Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
319 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
320 Financial investments Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
321 Trade accounts receivable Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForTradeAndOtherReceivablesExplanatory
322 Inventory Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
323 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
324 Leases Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForLeasesExplanatory
325 Impairment of non-financial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
326 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
327 Rights to use natural resources Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMiningRightsExplanatory
328 Loans and financings Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingsExplanatory
329 Current and deferred taxes on income Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
330 Provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
331 Shareholders' equity Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
332 Net revenue Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
333 30101 - Disclosure - General Information (Tables) Network

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337 30201 - Disclosure - Basis of preparation of the consolidated financial statements (Tables) Network

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341 Schedule of revision to financial statements - Income Statement Concept (Text Block (HTML)) For Period nexa:DisclosureOfRevisionToFinancialStatementsIncomeStatementTableTextBlock
342 Schedule of revision to financial statements - Expenses by nature Concept (Text Block (HTML)) For Period nexa:DisclosureOfRevisionToFinancialStatementsExpensesByNatureTableTextBlock
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347 30501 - Disclosure - Financial risk management (Tables) Network

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351 Schedule of credit quality of financial assets Concept (Text Block (HTML)) For Period ifrs-full:AnalysisOfCreditExposuresUsingExternalCreditGradingSystemExplanatory
352 Summary of estimated future cash flow Concept (Text Block (HTML)) For Period nexa:MaturityAnalysisOfFinancialInstrumentsTableTextBlock
353 Summary of gearing ratio Concept (Text Block (HTML)) For Period nexa:DisclosureOfNetDebtRatioTableTextBlock
354 Classification of financial assets and liabilities in the fair value hierarchy Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
355 30601 - Disclosure - Derivative financial instruments (Tables) Network

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356 Implied Table Table

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359 Schedule of sensitivity analysis Concept (Text Block (HTML)) For Period ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk
360 30701 - Disclosure - Financial instruments by category (Tables) Network

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361 Implied Table Table

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363 Schedule of financial instruments analysis Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
364 30801 - Disclosure - Cash and cash equivalents (Tables) Network

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365 Implied Table Table

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367 Schedule of cash and cash equivalents Concept (Text Block (HTML)) For Period nexa:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsTableTextBlock
368 Schedule of changes in operating assets and liabilities Concept (Text Block (HTML)) For Period nexa:DisclosureOfDetailedInformationAboutChangesInOperatingAssetsAndLiabilitiesTableTextblock
369 30901 - Disclosure - Financial investments (Tables) Network

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370 Implied Table Table

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372 Summary of financial investments Concept (Text Block (HTML)) For Period nexa:DisclosureOfDetailedInformationAboutFinancialInvestmentsHeldForTradingTableTextBlock
373 31001 - Disclosure - Trade accounts receivable (Tables) Network

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374 Implied Table Table

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377 Schedule of changes in impairment of trade accounts receivable Concept (Text Block (HTML)) For Period nexa:DisclosureOfChangesInImpairmentOfTradeAccountsReceivableTabletextBlock
378 Schedule of analysis of trade accounts receivable by currency Concept (Text Block (HTML)) For Period nexa:DisclosureOfAnalysisOfTradeAccountsReceivableByCurrencyTableTextBlock
379 Schedule of aging of trade accounts receivable Concept (Text Block (HTML)) For Period nexa:DisclosureOfAgingOfTradeAccountsReceivableTableTextBlock
380 31101 - Disclosure - Inventory (Tables) Network

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381 Implied Table Table

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383 Schedule of composition of inventory Concept (Text Block (HTML)) For Period nexa:DisclosureOfCompositionOfInventoryTableTextBlock
384 Schedule of changes in provision for obsolete and slow-moving inventory Concept (Text Block (HTML)) For Period nexa:DisclosureOfChangesInProvisionForObsoleteAndSlowMovingInventoryTableTextBlock
385 31201 - Disclosure - Related parties (Tables) Network

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386 Implied Table Table

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389 Schedule of key management compensation Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
390 31301 - Disclosure - Property, plant and equipment (Tables) Network

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394 Schedule of assets and projects under constructions Concept (Text Block (HTML)) For Period nexa:DisclosureOfAssetsAndProjectsUnderConstructionsExplanatoryTableTextBlock
395 31401 - Disclosure - Intangible assets (Tables) Network

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399 Schedule of cash generating units Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationForIndividualAssetOrCashgeneratingUnitWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesExplanatory
400 Schedule of assumptions of impairment testing on goodwill Concept (Text Block (HTML)) For Period nexa:DisclosureOfMainAssumptionsUsedForImpairmentTestingOfGoodwillTableTextBlock
401 31501 - Disclosure - Loans and financings (Tables) Network

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405 Schedule of maturity profile of the loans and financings Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
406 Schedule of movements in loans and financings Concept (Text Block (HTML)) For Period nexa:DisclosureOfMovementsInBorrowingsTableTextBlock
407 Schedule of analysis of the loans and financings, by currency Concept (Text Block (HTML)) For Period nexa:DisclosureOfAnalysisOfBorrowingsByCurrencyTableTextBlock
408 Schedule of analysis of the loans and financings, by index Concept (Text Block (HTML)) For Period nexa:DisclosureOfAnalysisOfBorrowingsByIndexTableTextBlock
409 31701 - Disclosure - Salaries and payroll charges (Tables) Network

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417 Schedule of analysis of deferred tax balances Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
418 Schedule of effects of deferred tax and taxes on profit or loss and other comprehensive income Concept (Text Block (HTML)) For Period nexa:ReconciliationOfChangesInDeferredTaxLiabilityAssetTableTextBlock
419 31901 - Disclosure - Provisions (Tables) Network

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420 Implied Table Table

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424 Schedule of contingent liabilities Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfContingentLiabilitiesExplanatory
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433 Summary of earnings per share information Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
434 Summarised financial information of the non-controlling interests Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNoncontrollingInterestsExplanatory
435 32201 - Disclosure - Net revenues (Tables) Network

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436 Implied Table Table

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439 Schedule of revenue by destination Concept (Text Block (HTML)) For Period nexa:ScheduleOfRevenueByDestinationTableTextBlock
440 Schedule of revenue by currency Concept (Text Block (HTML)) For Period nexa:ScheduleOfRevenueByCurrencyTableTextBlock
441 32301 - Disclosure - Expenses by nature (Tables) Network

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445 32401 - Disclosure - Mineral exploration and project development (Tables) Network

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453 32601 - Disclosure - Net financial results (Tables) Network

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454 Implied Table Table

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457 40101 - Disclosure - General information (Details) Network

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470 Brazil Member country:BR
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475 Number of reportable segments Concept (Integer) For Period nexa:IfrsNumberOfReportableSegments
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485 Intersegment sales Member ifrs-full:EliminationOfIntersegmentAmountsMember
486 Adjustments Member ifrs-full:UnallocatedAmountsMember
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489 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
490 Gross profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
491 Selling, general and administrative expense Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
492 Mineral exploration and project development Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
493 Other operating income and expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
494 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
495 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
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498 Share in the results of associates Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
499 Net financial results Concept (Monetary) For Period Credit nexa:FinancialResultsNet
500 Income before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
501 Impairment loss recognised in profit or loss, property, plant and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
502 40201 - Disclosure - Basis of preparation of the consolidated financial statements (Details) Network

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507 Nexa Resources Atacocha S.A.A. - "NEXA ATACOCHA" Member nexa:NexaResourcesAtacochaS.a.a.Member
508 NEXA PERU Member nexa:NexaResourcesPeruS.a.a.Member
509 Inversiones Garza Azul S.A.C Member nexa:InversionesGarzaAzulS.a.cMember
510 Votorantim GmbH Member nexa:VotorantimGmbhMember
511 Pollarix S. A. Member nexa:PollarixS.A.Member
512 L.D.O.S.P.E. Empreendimentos e Participaes Ltda. Member nexa:L.d.o.s.p.e.EmpreendimentosEParticipaesLtda.Member
513 L.D.Q.S.P.E. Empreendimentos e Participaes Ltda. Member nexa:L.d.q.s.p.e.EmpreendimentosEParticipaesLtda.Member
514 L.D.R.S.P.E. Empreendimentos e Participaes Ltda. Member nexa:L.d.r.s.p.e.EmpreendimentosEParticipaesLtda.Member
515 Nexa Resources El Porvenir S.A.C. Member nexa:NexaResourcesElPorvenirS.a.c.Member
516 Nexa Resources UK Ltd. - "NEXA UK" Member nexa:NexaResourcesUkLtd.nexaUkMember
517 Minera Bongara S.A. Member nexa:MineraBongarS.a.Member
518 Minera Pampa de Cobre S.A.C Member nexa:MineraPampaDeCobreS.a.cMember
519 Mineracao Dardanelos Ltda. Member nexa:MineraoDardanelosLtda.Member
520 Mineracao Santa Maria Ltda. Member nexa:MineraoSantaMariaLtda.Member
521 Rayrock Antofagasta S.A.C Member nexa:RayrockAntofagastaS.a.cMember
522 Nexa Resources Cajamarquilla S.A. - "NEXA CJM" Member nexa:NexaResourcesCajamarquillaS.a.Member
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524 Votorantim US. Inc. Member nexa:VotorantimUs.Inc.Member
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526 Entity's total for joint operations [member] Member ifrs-full:EntitysTotalForJointOperationsMember
527 Campos Novos Energia S.a. Member nexa:CamposNovosEnergiaS.a.Member
528 Cia. Minera Shalipayco S.A.C Member nexa:Cia.MineraShalipaycoS.a.cMember
529 Significant investment in subsidiary or joint operation LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
530 Percentage of capital in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
531 Percentage of capital in joint operation Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
532 40202 - Disclosure - Basis of preparation of the consolidated financial statements - Revision - Income Statement (Details) Network

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533 Disclosure of revision of income statement [Table] Table

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536 Original Member ifrs-full:PreviouslyStatedMember
537 First adoption of IFRS 15 Member ifrs-full:IncreaseDecreaseDueToApplicationOfIFRS15Member
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541 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
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545 General and administrative Concept (Monetary) For Period Debit ifrs-full:GeneralAndAdministrativeExpense
546 Mineral exploration and project development Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
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548 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpenseExcludingCostOfSales
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550 40203 - Disclosure - Basis of preparation of the consolidated financial statements - Revision - Expenses by nature (Details) Network

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 http://www.nexaresources.com/role/DisclosureFinancialRiskManagementLiquidityRiskEstimatedFutureCashFlowDetails
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703 40505 - Disclosure - Financial risk management - Net debt ratio (Details) Network

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 http://www.nexaresources.com/role/DisclosureFinancialRiskManagementFinancialAssetsAndLiabilitiesAtFairValueDetails
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745 40601 - Disclosure - Derivative financial instruments - Derivative financial instruments and underlying hedged items (Details) Network

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 http://www.nexaresources.com/role/DisclosureDerivativeFinancialInstrumentsDerivativeFinancialInstrumentsAndUnderlyingHedgedItemsDetails
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777 40602 - Disclosure - Derivative financial instruments - Sensitivity analysis (Details) Network

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813 40701 - Disclosure - Financial instruments by category - Analysis (Details) Network

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 http://www.nexaresources.com/role/DisclosureFinancialInstrumentsByCategoryAnalysisDetails
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843 40801 - Disclosure - Cash and cash equivalents (Details) Network

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864 40901 - Disclosure - Financial investments (Details) Network

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869 Bank deposit certificate Member nexa:BankDepositCertificateMember
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873 Financial investments Concept (Monetary) As Of Debit ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
874 41001 - Disclosure - Trade accounts receivable - Composition (Details) Network

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875 Disclosure of composition of trade accounts receivable [Table] Table

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877 Carrying amount [member] Member ifrs-full:CarryingAmountMember
878 Cost/gross carrying amount Member ifrs-full:GrossCarryingAmountMember
879 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
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881 Trade receivables Concept (Monetary) As Of Debit nexa:TradeAccountsReceivableFromNonRelatedParties
882 Related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
883 Total trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
884 41002 - Disclosure - Trade accounts receivable - Changes in impairment of trade accounts receivable (Details) Network

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 http://www.nexaresources.com/role/DisclosureTradeAccountsReceivableChangesInImpairmentOfTradeAccountsReceivableDetails
885 Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [table] Table

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887 Carrying amount [member] Member ifrs-full:CarryingAmountMember
888 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
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894 Additions Concept (Monetary) For Period Debit ifrs-full:IncreaseThroughOriginationOrPurchaseFinancialAssets
895 Reversals Concept (Monetary) For Period Credit nexa:DecreaseThroughReversalFinancialAssets
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897 Financial assets at end of period Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
898 41003 - Disclosure - Trade accounts receivable - Analysis by currency (Details) Network

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899 Disclosure of analysis of trade accounts receivable by currency [Table] Table

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 nexa:DisclosureOfAnalysisOfTradeAccountsReceivableByCurrencyTable
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902 BRL Member currency:BRL
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907 41004 - Disclosure - Trade accounts receivable - Aging (Details) Network

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908 Disclosure of aging of trade accounts receivable [Table] Table

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912 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
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920 Trade accounts receivable Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
921 41101 - Disclosure - Inventory - Composition (Details) Network

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922 Schedule of Inventory Disclosure [Table] Table

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924 Carrying amount [member] Member ifrs-full:CarryingAmountMember
925 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
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930 Semi-finished products Concept (Monetary) As Of Debit ifrs-full:WorkInProgress
931 Raw materials Concept (Monetary) As Of Debit ifrs-full:RawMaterials
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933 Imports in transit Concept (Monetary) As Of Debit ifrs-full:CurrentInventoriesInTransit
934 Other Concept (Monetary) As Of Debit ifrs-full:OtherInventories
935 Total Concept (Monetary) As Of Debit ifrs-full:Inventories
936 Inventories recognized as an expense Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
937 41102 - Disclosure - Inventory - Provision (Details) Network

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938 Disclosure of changes in provision for obsolete and slow-moving inventory [Table] Table

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 nexa:DisclosureOfChangesInProvisionForObsoleteAndSlowMovingInventoryTable
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940 Carrying amount [member] Member ifrs-full:CarryingAmountMember
941 Accumulated impairment Member ifrs-full:AccumulatedImpairmentMember
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952 Reversal of inventory write-down Concept (Monetary) For Period ifrs-full:ReversalOfInventoryWritedown
953 Exchange variation gains (losses) Concept (Monetary) For Period Debit nexa:ExchangeVariationGainsLossesInventories
954 Ending balance Concept (Monetary) As Of Debit ifrs-full:Inventories
955 41201 - Disclosure - Related parties - Balances (Details) Network

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956 Disclosure of transactions between related parties [table] Table

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958 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
959 Votorantim S.A. Member ifrs-full:ParentMember
960 Companhia Brasileira de Aluminio Member nexa:CompanhiaBrasileiraDeAluminioMember
961 Votorantim Cimentos S.A. Member nexa:VotorantimCimentosS.a.Member
962 Votener Votorantim Comercializadora de Energia Ltda. Member nexa:VotenerVotorantimComercializadoraDeEnergiaLtdaMember
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966 Trade accounts receivable, current Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
967 Related parties (assets) Concept (Monetary) As Of Debit nexa:RelatedPartiesAssets
968 Related parites (assets), non-current Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesDueFromRelatedParties
969 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesToRelatedParties
970 Trade payables, current Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
971 Dividends payable Concept (Monetary) As Of Credit ifrs-full:DividendPayables
972 Dividends payable, current Concept (Monetary) As Of Credit ifrs-full:CurrentDividendPayables
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974 Related parties (liabilities), current Concept (Monetary) As Of Credit nexa:CurrentLiabilitiesToRelatedParties
975 Related parties (liabilities), non-current Concept (Monetary) As Of Credit nexa:NonCurrentLiabilitiesToRelatedParties
976 41202 - Disclosure - Related parties - Transaction (Details) Network

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977 Disclosure of transactions between related parties [table] Table

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979 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
980 Votorantim S.A. Member ifrs-full:ParentMember
981 Companhia Brasileira de Aluminio Member nexa:CompanhiaBrasileiraDeAluminioMember
982 Votoratim Metais S.A. Member nexa:VotoratimMetaisS.a.Member
983 Votener Votorantim Comercializadora de Energia Ltda. Member nexa:VotenerVotorantimComercializadoraDeEnergiaLtdaMember
984 Votorantim Cimentos S.A. Member nexa:VotorantimCimentosS.a.Member
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988 Purchases Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
989 Financial results Concept (Monetary) For Period Credit nexa:FinancialResultsRelatedPartyTransactions
990 Settlement of energy assets Concept (Monetary) For Period Credit nexa:PaymentsForEnergyAssetsCompensationToRelatedParties
991 41203 - Disclosure - Related parties (Details) Network

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992 Implied Table Table

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993 Related parties. Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
994 Short-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
995 Other long-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationOtherLongtermBenefits
996 Total key management compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
997 41301 - Disclosure - Property, plant and equipment (Details) Network

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998 Disclosure of detailed information about property, plant and equipment [table] Table

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1001 Land and improvements Member nexa:IfrsLandAndLandImprovementsMember
1002 Dams and Buildings Member ifrs-full:BuildingsMember
1003 Machinery, equipment and facilities Member nexa:MachineryEquipmentAndFacilitiesMember
1004 Assets and projects under construction, PPE Member ifrs-full:ConstructionInProgressMember
1005 Asset retirement obligation (ARO) Member nexa:AssetRetirementObligationMember
1006 Mining projects Member ifrs-full:MiningAssetsMember
1007 Other PPE Member ifrs-full:OtherPropertyPlantAndEquipmentMember
1008 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
1009 Carrying amount [member] Member ifrs-full:CarryingAmountMember
1010 Cost/gross carrying amount Member ifrs-full:GrossCarryingAmountMember
1011 Accumulated depreciation/amortization Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
1012 Property, plant and equipment LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1013 Reconciliation of changes in property, plant and equipment Abstract ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract
1014 Balance at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1015 Additions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1016 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
1017 Depreciation Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
1018 Foreign exchange (losses) gains Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesPropertyPlantAndEquipment
1019 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
1020 Remeasurement of asset retirement obligation Concept (Monetary) For Period Debit nexa:IncreaseDecreaseThroughRemeasurementOfAssetRetirementObligationPropertyPlantAndEquipment
1021 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1022 Transfers of assets held for sale Concept (Monetary) For Period Debit nexa:IncreaseDecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment
1023 Balance at the end of the year Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1024 Average annual depreciation rates - % Concept (Percent) For Period nexa:DepreciationRatePropertyPlantAndEquipment
1025 Borrowing costs capitalized Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
1026 41302 - Disclosure - Property, plant and equipment - Assets and projects under constructions (Details) Network

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1027 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
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1034 Information technology projects Member nexa:AssetsAndProjectsUnderConstructionInformationTechnologyMember
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1042 Percentage of interest in project Concept (Percent) As Of nexa:PercentageOfInterestInProject
1043 41303 - Disclosure - Property, plant and equipment - Impairment of non-financial assets (Details) Network

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 http://www.nexaresources.com/role/DisclosurePropertyPlantAndEquipmentImpairmentOfNonFinancialAssetsDetails
1044 Disclosure of detailed information about property, plant and equipment [table] Table

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1046 Entity's total for cash-generating units [member] Member ifrs-full:EntitysTotalForCashgeneratingUnitsMember
1047 Juiz de Fora and Tres Marias system Member nexa:JuizDeForaAndTresMariasSystemMember
1048 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
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1050 Assets and projects under construction, PPE Member ifrs-full:ConstructionInProgressMember
1051 Property, plant and equipment LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
1052 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1053 41401 - Disclosure - Intangible assets (Details) Network

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1054 Disclosure of detailed information about intangible assets [table] Table

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1059 Period of financial budgets Concept (xbrli:durationItemType) For Period nexa:LengthOfPeriodForFinancialBudgetsUsedForCashFlowProjections
1060 41402 - Disclosure - Intangible assets - Analysis (Details) Network

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1061 Disclosure of reconciliation of changes in intangible assets and goodwill [table] Table

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1072 Balance at the beginning of the year Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsAndGoodwill
1073 Acquisitions Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsIntangibleAssetsOtherThanGoodwill
1074 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsIntangibleAssetsAndGoodwill
1075 Amortization Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
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1077 Transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersIntangibleAssetsAndGoodwill
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1079 Average annual amortization rates % Concept (Percent) For Period nexa:AmortisationRatesIntangibleAssetsOtherThanGoodwillPercent
1080 Impairment loss Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill
1081 41403 - Disclosure - Intangible assets - Goodwill on acquisition (Details) Network

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 http://www.nexaresources.com/role/DisclosureIntangibleAssetsGoodwillOnAcquisitionDetails
1082 Disclosure of information for cash-generating units [table] Table

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1087 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
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1095 Other net assets carrying amount Concept (Monetary) As Of Debit nexa:OtherNetAssets
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1097 Impairment loss Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossIntangibleAssetsAndGoodwill
1098 41404 - Disclosure - Intangible assets - Impairment testing of goodwill (Details) Network

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1099 Disclosure of impairment testing of goodwill [Table] Table

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1118 41501 - Disclosure - Loans and financings - Analysis (Details) Network

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1119 Disclosure of detailed information about borrowings [table] Table

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1150 41502 - Disclosure - Loans and financings - Maturity profile (Details) Network

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 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsMaturityProfileDetails
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*

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1173 41503 - Disclosure - Loans and financings - Changes (Details) Network

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1174 Implied Table Table

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*

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1185 41504 - Disclosure - Loans and financings - Analysis by currency (Details) Network

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 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsAnalysisByCurrencyDetails
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*

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1196 41505 - Disclosure - Loans and financings - Analysis by index (Details) Network

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 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsAnalysisByIndexDetails
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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1212 41506 - Disclosure - Loans and financings - Guarantees and covenants (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsGuaranteesAndCovenantsDetails
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*

*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1223 41507 - Disclosure - Loans and financings - Bonds (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsBondsDetails
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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1238 41508 - Disclosure - Loans and financings - Repayment of debt (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsRepaymentOfDebtDetails
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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1254 41509 - Disclosure - Loans and financings - Renegotiation of debt (Details) Network

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 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsRenegotiationOfDebtDetails
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1282 41510 - Disclosure - Loans and financings - New loans (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureLoansAndFinancingsNewLoansDetails
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*

 ifrs-full:DisclosureOfDetailedInformationAboutBorrowingsTable
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1298 41601 - Disclosure - Confirming payables (Details) Network

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 http://www.nexaresources.com/role/DisclosureConfirmingPayablesDetails
1299 Implied Table Table

*

*

 implied:Table
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1304 41701 - Disclosure - Salaries and payroll charges (Details) Network

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 http://www.nexaresources.com/role/DisclosureSalariesAndPayrollChargesDetails
1305 Implied Table Table

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*

 implied:Table
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1310 41801 - Disclosure - Current and deferred income taxes - Reconciliation of income taxes expenses (Details) Network

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 http://www.nexaresources.com/role/DisclosureCurrentAndDeferredIncomeTaxesReconciliationOfIncomeTaxesExpensesDetails
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 nexa:IncomeTaxDisclosureTable
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1331 41802 - Disclosure - Current and deferred income taxes - Analysis of deferred tax balances (Details) Network

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 http://www.nexaresources.com/role/DisclosureCurrentAndDeferredIncomeTaxesAnalysisOfDeferredTaxBalancesDetails
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1359 41803 - Disclosure - Current and deferred income taxes - Effects of deferred tax and taxes on profit or loss for the year and other comprehensive income (Details) Network

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 http://www.nexaresources.com/role/DisclosureCurrentAndDeferredIncomeTaxesEffectsOfDeferredTaxAndTaxesOnProfitOrLossForYearAndOtherComprehensiveIncomeDetails
1360 Implied Table Table

*

*

 implied:Table
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1368 41901 - Disclosure - Provisions (Details) Network

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 http://www.nexaresources.com/role/DisclosureProvisionsDetails
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1400 41902 - Disclosure - Provisions - Tax, civil, labor and environmental provisions (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureProvisionsTaxCivilLaborAndEnvironmentalProvisionsDetails
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1414 41903 - Disclosure - Provisions - Litigation with likelihood of loss considered possible (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureProvisionsLitigationWithLikelihoodOfLossConsideredPossibleDetails
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1425 41904 - Disclosure - Provisions - Contingent liabilities - Narrative (Details) Network

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*

 http://www.nexaresources.com/role/DisclosureProvisionsContingentLiabilitiesNarrativeDetails
1426 Disclosure of contingent liabilities [table] Table

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*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
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1439 Indemnity lawsuits alleging property damage Member nexa:IndemnityLawsuitsAllegingPropertyDamageContingentCivilLiabilitiesMember
1440 Environmental Member nexa:LegalProceedingsContingentLiabilityEnvironmentalMember
1441 Alleged pollution of Sao Francisco River Member nexa:AllegedPollutionOfSaoFranciscoRiverContingentEnvironmentalLiabilityMember
1442 Contingent tax liabilities with likelihood of loss considered possible LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1443 Estimate of financial effect of contingent liability Concept (Monetary) As Of ifrs-full:EstimatedFinancialEffectOfContingentLiabilities
1444 42001 - Disclosure - Contractual liabilities (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureContractualLiabilitiesDetails
1445 Implied Table Table

*

*

 implied:Table
1446 Contractual liabilities Abstract ifrs-full:ContractLiabilitiesAbstract
1447 At January Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
1448 Revenue recognition upon ore delivery Concept (Monetary) For Period Credit ifrs-full:RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod
1449 Accretion for year Concept (Monetary) For Period Debit nexa:InterestExpenseOnDeferredRevenue
1450 At December Concept (Monetary) As Of Credit ifrs-full:ContractLiabilities
1451 Contractual liabilities breakdown Abstract nexa:ContractualLiabilitiesBreakdownAbstract
1452 Current Concept (Monetary) As Of Credit ifrs-full:CurrentContractLiabilities
1453 Non-current Concept (Monetary) As Of Credit ifrs-full:NoncurrentContractLiabilities
1454 42101 - Disclosure - Shareholders' equity - Capital, Treasury shares and Share premium (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureShareholdersEquityCapitalTreasurySharesAndSharePremiumDetails
1455 Implied Table Table

*

*

 implied:Table
1456 Shareholders' equity Abstract nexa:DisclosureOfEquityAbstract
1457 Capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
1458 Capital, shares Concept (Shares) As Of ifrs-full:NumberOfSharesIssuedAndFullyPaid
1459 Par value ($ per share) Concept (Share) As Of ifrs-full:ParValuePerShare
1460 Authorized, but unissued and unsubscribed share capital Concept (Monetary) As Of Credit nexa:CommonStockSharesUnsubscribedAndUnissued
1461 Maximum amount authorized to repurchase under the share buy-back program Concept (Monetary) For Period Credit nexa:MaximumAmountOfSharesAuthorizedToRepurchaseUnderBuyBackProgram
1462 Period of time for repurchase of shares under buy-back program Concept (xbrli:durationItemType) For Period nexa:PeriodOfTimeForRepurchaseOfSharesUnderBuyBackProgram
1463 Treasury shares Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
1464 Treasury shares, shares Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
1465 Reimbursement of share premium, amount approved Concept (Share) For Period nexa:ReimbursementOfSharePremiumAmountApproved
1466 Payments for reimbursement of share premium Concept (Monetary) For Period Credit nexa:PaymentsForReimbursementOfSharePremium
1467 42102 - Disclosure - Shareholders' equity - Accumulated other comprehensive income (loss) (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureShareholdersEquityAccumulatedOtherComprehensiveIncomeLossDetails
1468 Disclosure of reserves within equity [table] Table

*

*

 ifrs-full:DisclosureOfReservesWithinEquityTable
1469 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1470 Equity [member] Member ifrs-full:EquityMember
1471 Accumulated other comprehensive income Member nexa:AccumulatedOtherComprehensiveIncomeIncludingNonControllingInterestMember
1472 Cumulative translation adjustment Member nexa:ReserveOfExchangeDifferencesOnTranslationIncludingNonControllingInterestMember
1473 Remeasurements with retirement benefits Member nexa:ReserveOfRemeasurementsOfDefinedBenefitPlansIncludingNonControllingInterestMember
1474 Hedge accounting Member nexa:ReserveOfCashFlowHedgesIncludingNonControllingInterestMember
1475 Accumulated other comprehensive income (loss) LineItems ifrs-full:DisclosureOfReservesWithinEquityLineItems
1476 Reconciliation of changes in accumulated other comprehensive income Abstract nexa:ReconciliationOfChangesInAccumulatedOtherComprehensiveIncomeAbstract
1477 Beginning balance Concept (Monetary) As Of Credit ifrs-full:Equity
1478 Translation adjustment of foreign investments Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
1479 Cash flow hedge accounting Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxCashFlowHedges
1480 Remeasurements of retirement benefits Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
1481 Ending balance Concept (Monetary) As Of Credit ifrs-full:Equity
1482 Accumulated non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1483 Attributable to NEXA's shareholders Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
1484 42103 - Disclosure - Shareholders' equity - Earnings per share (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureShareholdersEquityEarningsPerShareDetails
1485 Implied Table Table

*

*

 implied:Table
1486 Shareholders' equity Abstract nexa:DisclosureOfEquityAbstract
1487 Net income for the year attributable to NEXA's shareholders Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
1488 Weighted average number of outstanding common shares Concept (Shares) For Period ifrs-full:WeightedAverageShares
1489 Earnings per share in US Dollars Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
1490 42104 - Disclosure - Shareholders' equity - Non-controlling interests (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureShareholdersEquityNonControllingInterestsDetails
1491 Disclosure of non-controlling interests [Table] Table

*

*

 nexa:DisclosureOfNonControllingInterestsTable
1492 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1493 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1494 NEXA PERU Member nexa:NexaResourcesPeruS.a.a.Member
1495 Pollarix S. A. Member nexa:PollarixS.A.Member
1496 Disclosure of non-controlling interests LineItems nexa:DisclosureOfNonControllingInterestsLineItems
1497 Summarized balance sheet Abstract ifrs-full:StatementOfFinancialPositionAbstract
1498 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
1499 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
1500 Current net assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsLiabilities
1501 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
1502 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
1503 Non-current net assets Concept (Monetary) As Of Debit nexa:NoncurrentAssetsLiabilities
1504 Net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1505 Accumulated non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
1506 Summarized income statement Abstract ifrs-full:IncomeStatementAbstract
1507 Net revenues Concept (Monetary) For Period Credit ifrs-full:Revenue
1508 Net income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
1509 Other comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
1510 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
1511 Comprehensive income (loss) attributable to non- controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
1512 Dividends paid to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToNoncontrollingInterests
1513 Summarized statement of cash flows Abstract ifrs-full:StatementOfCashFlowsAbstract
1514 Net cash provided by operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
1515 Net cash used in investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
1516 Net cash used in financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
1517 Increase in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
1518 42201 - Disclosure - Net revenue (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureNetRevenueDetails
1519 Disclosure of Revenue [Table] Table

*

*

 nexa:DisclosureOfRevenueTable
1520 Currency [Axis] Axis srt:CurrencyAxis
1521 All Currencies [Domain] Member currency:AllCurrenciesDomain
1522 US Dollar Member currency:USD
1523 BRL Member currency:BRL
1524 Other Member nexa:OtherCurrenciesMember
1525 Revenue by destination [Axis] Axis nexa:RevenueByDestinationAxis
1526 Revenue by destination [Domain] Member nexa:RevenueByDestinationDomain
1527 Brazil Member country:BR
1528 Peru Member country:PE
1529 Luxembourg Member country:LU
1530 United States Member country:US
1531 Switzerland Member country:CH
1532 Japan Member country:JP
1533 Argentina Member country:AR
1534 South Korea Member currency:KRW
1535 Colombia Member country:CO
1536 Chile Member country:CL
1537 Turkey Member country:TR
1538 Austria Member country:AT
1539 Singapore Member country:SG
1540 Germany Member country:DE
1541 China Member country:CN
1542 Italy Member country:IT
1543 Other countries Member nexa:OtherCountriesMember
1544 Net revenue LineItems nexa:DisclosureOfRevenueLineItems
1545 Gross revenues Concept (Monetary) For Period Credit nexa:GrossRevenue
1546 Revenues of products Concept (Monetary) For Period Credit nexa:GrossRevenuesOfProducts
1547 Revenues of services Concept (Monetary) For Period Credit nexa:GrossRevenuesOfServices
1548 Taxes on sales Concept (Monetary) For Period Debit nexa:TaxesOnSales
1549 Return on products sales Concept (Monetary) For Period Debit nexa:IfrsSalesReturnsGoods
1550 Net revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1551 42301 - Disclosure - Expenses by nature (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureExpensesByNatureDetails
1552 Disclosure of Detailed Information about Expenses by Nature [Table] Table

*

*

 nexa:DisclosureOfDetailedInformationAboutExpensesByNatureTable
1553 Expenses by Nature [Axis] Axis nexa:ExpensesByNatureAxis
1554 Expenses by Nature [Domain] Member nexa:ExpensesByNatureDomain
1555 Cost of sales Member nexa:ExpensesByNatureCostOfSalesMember
1556 Selling, general and administrative Member nexa:ExpensesByNatureSellingGeneralAndAdministrativeMember
1557 Mineral exploration and project development Member nexa:ExpensesByNatureMineralExplorationAndProjectDevelopmentMember
1558 Expenses by nature LineItems nexa:DisclosureOfDetailedInformationAboutExpensesByNatureLineItems
1559 Raw materials and consumables used Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
1560 Employee benefit expenses Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
1561 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1562 Services, miscellaneous Concept (Monetary) For Period Debit nexa:MiscellaneousServicesExpense
1563 Other expenses Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
1564 Total Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
1565 Average number of employees Concept (Decimal) For Period ifrs-full:AverageNumberOfEmployees
1566 42401 - Disclosure - Mineral exploration and project development (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureMineralExplorationAndProjectDevelopmentDetails
1567 Implied Table Table

*

*

 implied:Table
1568 Mineral exploration and project development Abstract nexa:DisclosureOfMineralExplorationAndProjectDevelopmentAbstract
1569 Mineral exploration Concept (Monetary) For Period Debit nexa:MineralExplorationExpenses
1570 Project development (FEL 1 and FEL 2) Concept (Monetary) For Period Debit nexa:ProjectDevelopmentExpenses
1571 Mineral exploration and project development Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
1572 Expenses relating to brownfield mineral exploration Concept (Monetary) For Period Debit nexa:BrownfieldMineralExplorationExpenses
1573 Expenses relating to greenfield mineral exploration Concept (Monetary) For Period Debit nexa:GreenfieldMineralExplorationExpenses
1574 Expenses relating to greenfield project development Concept (Monetary) For Period Debit nexa:GreenfieldProjectDevelopmentExpenses
1575 42501 - Disclosure - Other income and expenses, net (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureOtherIncomeAndExpensesNetDetails
1576 Disclosure of Other Income and Expenses, Net [Table] Table

*

*

 nexa:DisclosureOfOtherIncomeAndExpensesNetTable
1577 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
1578 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
1579 NEXA BR Member nexa:NexaRecursosMineraisS.a.Member
1580 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
1581 Assets [member] Member ifrs-full:ClassesOfAssetsMember
1582 Fortaleza de Minas facility Member nexa:FortalezaDeMinasFacilityMember
1583 Other income and expenses, net LineItems nexa:DisclosureOfDetailedInformationAboutOtherIncomeAndExpensesLineItems
1584 Consideration for the sale of business Concept (Monetary) For Period Credit nexa:ConsiderationForSaleOfBusinesses
1585 Gain on sale of business Concept (Monetary) For Period Credit nexa:GainLossOnSaleOfBusinesses
1586 Corporate projects Concept (Monetary) For Period Debit nexa:ProjectExpenses
1587 Mining obligations Concept (Monetary) For Period Debit nexa:MiningExpenses
1588 Loss on sale of property, plant and equipment and intangible assets Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfNoncurrentAssets
1589 Provision for tax, labor, civil and environmental claims Concept (Monetary) For Period Debit nexa:ProvisionForTaxLaborCivilAndEnvironmentalClaims
1590 Impairment of property, plant, equipment Concept (Monetary) For Period ifrs-full:WritedownsReversalsOfPropertyPlantAndEquipment
1591 Gain on sale of investment Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
1592 Environmental and asset retirement obligations Concept (Monetary) For Period Debit nexa:EnvironmentalAndAssetRetirementObligationsExpense
1593 Commodities derivative financial instruments Concept (Monetary) For Period Credit ifrs-full:TradingIncomeExpenseOnDerivativeFinancialInstruments
1594 Tax credits Concept (Monetary) For Period Credit nexa:IncomeTaxCredits
1595 Other operating expenses, net Concept (Monetary) For Period Credit nexa:MiscellaneousOtherOperatingIncomeExpense
1596 Total other income and expenses, net Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
1597 Principal amount of tax credits Concept (Monetary) For Period Credit nexa:IncomeTaxCreditsPrincipalAmount
1598 Interest on tax credits Concept (Monetary) For Period Credit nexa:IncomeTaxCreditsInterestAmount
1599 42601 - Disclosure - Net financial results (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureNetFinancialResultsDetails
1600 Disclosure of Net Financial Results [Table] Table

*

*

 nexa:DisclosureOfNetFinancialResultsTable
1601 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1602 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1603 NEXA BR Member nexa:NexaRecursosMineraisS.a.Member
1604 Net financial results LineItems nexa:DisclosureOfNetFinancialResultsLineItems
1605 Financial income Abstract nexa:FinanceIncomeAbstract
1606 Gains on financial investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsAtFairValueThroughProfitOrLossClassifiedAsHeldForTrading
1607 Interest on tax credits - Note 25 Concept (Monetary) For Period Credit nexa:IncomeTaxCreditsInterestAmount
1608 Other financial income Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncome
1609 Total financial income Concept (Monetary) For Period Credit ifrs-full:FinanceIncome
1610 Financial expenses Abstract nexa:FinanceCostsAbstract
1611 Interest on loans and financing Concept (Monetary) For Period Debit ifrs-full:InterestExpenseOnBorrowings
1612 Interest on contractual liabilities Concept (Monetary) For Period Debit nexa:InterestExpenseOnContractualLiabilities
1613 Monetary adjustment of provisions Concept (Monetary) For Period Debit ifrs-full:ExpenseDueToUnwindingOfDiscountOnProvisions
1614 Derivative financial instruments - Note 6 (iii) Concept (Monetary) For Period Debit nexa:FinancialExpensesOnDerivativeFinancialInstruments
1615 Other financial expenses Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
1616 Total financial expenses Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
1617 Foreign exchange losses, net Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1618 Net financial results Concept (Monetary) For Period Credit nexa:FinancialResultsNet
1619 Prepayment of loan by the related parties Concept (Monetary) For Period Debit ifrs-full:CashReceiptsFromRepaymentOfAdvancesAndLoansMadeToRelatedParties
1620 Outstanding debt from related parties Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
1621 42701 - Disclosure - Long-term commitments (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureLongTermCommitmentsDetails
1622 Implied Table Table

*

*

 implied:Table
1623 Long-term commitments Abstract nexa:DisclosureOfLongTermCommitmentsAbstract
1624 Contracted capital commitments Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1625 Forward purchase commitments Concept (Monetary) As Of Credit nexa:ForwardPurchaseCommitments
1626 42801 - Disclosure - Events after the reporting period (Details) Network

*

*

 http://www.nexaresources.com/role/DisclosureEventsAfterReportingPeriodDetails
1627 Disclosure of non-adjusting events after reporting period [table] Table

*

*

 ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodTable
1628 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1629 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1630 Dividend distribution Member ifrs-full:MajorOrdinaryShareTransactionsMember
1631 Peruvian income tax assessment Member nexa:PeruvianIncomeTaxAssessmentMember
1632 Events after the reporting period LineItems ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
1633 Dividend distribution (per share) Concept (Share) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
1634 Dividend distribution Concept (Monetary) For Period ifrs-full:DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
1635 Income tax calculation assessment Concept (Monetary) For Period Debit nexa:TaxAssessmentIncomeTaxCalculation
1636 Provision for tax Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForCurrentTaxOfPriorPeriod

*

*