MINCO GOLD CORP (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 101 - Document - Document And Entity Information Network

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2 Document Information [Table] Table

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 dei:DocumentInformationTable
3 Classes of ordinary shares [axis] Axis ifrs-full:ClassesOfOrdinarySharesAxis
4 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
5 Document Information [Line Items] LineItems dei:DocumentInformationLineItems
6 Document Type Concept (Submission Type) For Period dei:DocumentType
7 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
8 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
9 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
10 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
11 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
12 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
13 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
14 Entity Well-known Seasoned Issuer Concept (Yes/No) For Period dei:EntityWellKnownSeasonedIssuer
15 Entity Voluntary Filers Concept (Yes/No) For Period dei:EntityVoluntaryFilers
16 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
17 Entity Filer Category Concept (Filer Category) For Period dei:EntityFilerCategory
18 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
19 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
20 102 - Statement - Consolidated Statements of Financial Position Network

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21 Statement Of Consolidated Statements Of Financial Position [Table] Table

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 mghcf:StatementOfConsolidatedStatementsOfFinancialPositionTable
22 Entity [Axis] Axis mghcf:EntityAxis
23 legal entity [Domain] Member mghcf:LegalEntityDomain
24 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
25 Statement Of Consolidated Statements Of Financial Position [Line Items] LineItems mghcf:StatementOfConsolidatedStatementsOfFinancialPositionLineItems
26 Assets Abstract ifrs-full:AssetsAbstract
27 Current assets Abstract ifrs-full:CurrentAssetsAbstract
28 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
29 Short-term investment Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
30 Investments at fair value Concept (Monetary) As Of Debit mghcf:OtherInvestmentsAtFairValueCurrent
31 Receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
32 Due from related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
33 Prepaid expenses and deposits Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
34 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
35 Non-current assets Abstract ifrs-full:NoncurrentAssetsAbstract
36 Long-term deposit Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
37 Mineral interests Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
38 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
39 Assets Concept (Monetary) As Of Debit ifrs-full:Assets
40 Liabilities Abstract ifrs-full:LiabilitiesAbstract
41 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
42 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
43 Due to related parties Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
44 Due to minority shareholders of a subsidiary Concept (Monetary) As Of Credit mghcf:DueToMinorityShareholdersOfSubsidiary
45 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
46 Equity Abstract ifrs-full:EquityAbstract
47 Equity attributable to owners of the parent Abstract mghcf:EquityAttributableToOwnersOfParentAbstract
48 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
49 Contributed surplus Concept (Monetary) As Of Credit ifrs-full:SharePremium
50 Accumulated other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
51 Deficits Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
52 Equity attributable to owners of parent Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
53 Non-controlling interest Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
54 Total equity Concept (Monetary) As Of Credit ifrs-full:Equity
55 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
56 103 - Statement - Consolidated Statements of Income (Loss) Network

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57 Consolidated Statements of Operations and Net Income Loss [Table] Table

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 mghcf:ConsolidatedStatementsOfOperationsAndNetIncomeLossTable
58 Entity [Axis] Axis mghcf:EntityAxis
59 legal entity [Domain] Member mghcf:LegalEntityDomain
60 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
61 Consolidated Statements of Operations and Net Income Loss [Line Items] LineItems mghcf:ConsolidatedStatementsOfOperationsAndNetIncomeLossLineItems
62 Realized gain from investments Concept (Monetary) For Period Credit mghcf:RealizedInvestmentsGainsLosses
63 Net unrealized losses from investments Concept (Monetary) For Period Debit mghcf:UnrealizedLossFromInvestmentsAtFairValue
64 Loss on investment Concept (Monetary) For Period Credit mghcf:GainLossOnInvestment
65 Operating expenses Abstract ifrs-full:ExpenseByNatureAbstract
66 Accounting and audit Concept (Monetary) For Period Debit ifrs-full:AuditorsRemuneration
67 Audit, legal and regulatory Concept (Monetary) For Period Debit mghcf:AuditLegalAndRegulatoryExpenses
68 Amortization Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
69 Consulting Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
70 Directors' fees Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
71 Field office expenses Concept (Monetary) For Period Debit mghcf:FieldOfficeExpenses
72 Exploration costs Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
73 Gain on legal settlement Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
74 Gain on sale of exploration permit Concept (Monetary) For Period Credit mghcf:GainOnSaleOfExplorationPermit
75 Investor relations Concept (Monetary) For Period Debit mghcf:InvestorRelationsExpenses
76 Legal and regulatory Concept (Monetary) For Period Debit mghcf:LegalAndRegulatoryExpense
77 Office and administration Concept (Monetary) For Period Debit mghcf:OfficeAdministrationExpenses
78 Property and Investment evaluation Concept (Monetary) For Period Debit mghcf:PropertyAndInvestmentEvaluationExpense
79 Property investigation Concept (Monetary) For Period Debit mghcf:InvestmentInvestigationExpenses
80 Rent Concept (Monetary) For Period Debit ifrs-full:RentalExpense
81 Salaries and benefits Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
82 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
83 Travel and transportation Concept (Monetary) For Period Debit mghcf:TravelAndTransportationExpenses
84 Total operating expenses Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
85 Operating loss Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
86 Finance and other income (expenses) Abstract mghcf:FinanceAndOtherIncomeExpensesAbstract
87 Foreign exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
88 Gain on sale of Minco Resources Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedWhenControlInSubsidiaryIsLost
89 Gain on disposal of investment Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
90 Gain on becoming an investment entity Concept (Monetary) For Period Credit mghcf:GainsLossesRecognisedOnBecomingInvestmentEntity
91 Share of gain (loss) from an associate Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
92 Dilution loss Concept (Monetary) For Period Debit mghcf:DilutionLossOnInvestmentsInAssociate
93 Loss on short-term investment Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfInvestments
94 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
95 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
96 Other income (expenses) Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
97 Finance and other income (expenses) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
98 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
99 Net income (loss) attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
100 Shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
101 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
102 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
103 Net Income (loss) per share: Abstract ifrs-full:EarningsPerShareAbstract
104 basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
105 diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
106 Income (loss) per share - basic and diluted Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
107 Weighted average number of common shares outstanding: Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
108 basic Concept (Shares) For Period ifrs-full:WeightedAverageShares
109 diluted Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
110 104 - Statement - Consolidated Statements of Comprehensive Income (Loss) Network

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111 Statement Of Comprehensive Income [Table] Table

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 mghcf:StatementOfComprehensiveIncomeTable
112 Entity [Axis] Axis mghcf:EntityAxis
113 legal entity [Domain] Member mghcf:LegalEntityDomain
114 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
115 Statement of Comprehensive Income (Loss) LineItems mghcf:StatementOfComprehensiveIncomeLineItems
116 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
117 Other comprehensive income (loss), net of tax Abstract ifrs-full:OtherComprehensiveIncomeAbstract
118 Items that may be reclassified subsequently to profit or loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
119 Unrealized gain on investment, net of tax Concept (Monetary) For Period Credit mghcf:UnrealisedGainLossOnInvestmentNetOfTax
120 Reclassification of currency translation adjustments upon disposition of Minco Resources Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnExchangeDifferencesOnTranslationNetOfTax
121 Reclassification of other comprehensive income of an associate on becoming investment entity Concept (Monetary) For Period Debit mghcf:ReclassificationAdjustmentsPartialDisposalOfInvestmentInAssociateThroughOtherComprehensiveIncomeNetOfTax
122 Share of other comprehensive income (loss) of an associate Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethodThatWillBeReclassifiedToProfitOrLossNetOfTax
123 Realized gain reclassified to net loss on disposal of investment, net of tax Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsNetOfTax
124 Exchange differences on translation from functional to presentation currency Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
125 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
126 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
127 Comprehensive income (loss) attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
128 Shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
129 Non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
130 Total comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
131 105 - Statement - Consolidated Statements of Changes in Equity Network

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132 Statement of changes in equity [table] Table

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 ifrs-full:StatementOfChangesInEquityTable
133 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
134 Equity [Member] Member ifrs-full:EquityMember
135 Common Stocks [Member] Member mghcf:CommonStocksMember
136 Issued capital [member] Member ifrs-full:IssuedCapitalMember
137 Share premium [member] Member ifrs-full:SharePremiumMember
138 Accumulated other comprehensive income [member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
139 Retained Earnings [Member] Member ifrs-full:RetainedEarningsMember
140 Equity attributable to owners of parent [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
141 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
142 Entity [Axis] Axis mghcf:EntityAxis
143 legal entity [Domain] Member mghcf:LegalEntityDomain
144 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
145 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
146 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
147 Balance, (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
148 Non-controlling interest in acquisition Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughAcquisitionOfSubsidiary
149 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
150 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
151 Elimination of non-controlling interest related to sale of Minco Resources Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInOwnershipInterestsInSubsidiariesThatDoNotResultInLossOfControl
152 Reclassification of other comprehensive income of an associate upon changes to an investment entity Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeNetOfTax
153 Proceeds on issuance of shares from exercise of options Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
154 Proceeds on issuance of shares from exercise of options, (in shares) Concept (Shares) For Period mghcf:IncreaseDecreaseThroughExerciseOfOptionsNumberOfShares
155 Share-based compensation Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
156 Reversal of share-based compensation relating to performance share unit Concept (Monetary) For Period Credit mghcf:IncreaseDecreasethroughReversalOfSharebasedPaymentTransactions
157 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
158 Balance, (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
159 106 - Statement - Consolidated Statements of Cash Flows Network

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160 Statement Of Cash Flows [Table] Table

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 mghcf:StatementOfCashFlowsTable
161 Entity [Axis] Axis mghcf:EntityAxis
162 legal entity [Domain] Member mghcf:LegalEntityDomain
163 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
164 Statement Of Cash Flows [Line Items] LineItems mghcf:StatementOfCashFlowsLineItems
165 Cash flow provided by (used in) Operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
166 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
167 Items not affecting cash and cash equivalent: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
168 Amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForAmortisationExpense
169 Share of loss (gain) from an associate Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAccountedForUsingEquityMethod
170 Dilution loss Concept (Monetary) For Period Debit mghcf:DilutionLoss
171 Realized gains from investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
172 Realized gains from investments Concept (Monetary) For Period Credit mghcf:RealizedInvestmentsGainsLosses
173 Foreign exchange loss (gain) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
174 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
175 Unrealized gain on investment Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestmentProperties
176 Gain on sale of Minco Resources Concept (Monetary) For Period Debit ifrs-full:OtherAdjustmentsForWhichCashEffectsAreInvestingOrFinancingCashFlow
177 Gain on legal settlement Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
178 Gain on sale of exploration permit Concept (Monetary) For Period Credit mghcf:GainOnSaleOfExplorationPermit
179 Net unrealized losses from investments Concept (Monetary) For Period Debit mghcf:UnrealizedLossFromInvestmentsAtFairValue
180 Gain on becoming an investment entity Concept (Monetary) For Period Credit mghcf:GainsLossesRecognisedOnBecomingInvestmentEntity
181 Purchase of short-term investments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
182 Redemption of short-term investments Concept (Monetary) For Period Debit mghcf:AdjustmentsForRedemptionOfShortTermInvestment
183 Purchase of investments Concept (Monetary) For Period Debit mghcf:AdjustmentsForDecreaseIncreaseInOtherNonCurrentAssets
184 Disposition of investments Concept (Monetary) For Period Debit mghcf:ProceedsFromDispositionOfInvestmentsOperatingActivities
185 Changes in items of working capital: Abstract mghcf:IncreaseDecreaseInWorkingCapitalAbstract
186 Receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
187 Prepaid expenses and deposits Concept (Monetary) For Period Debit mghcf:AdjustmentsForDecreaseIncreaseInPrepaidExpensesAndDeposits
188 Accounts payable and accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
189 Due from/to related parties Concept (Monetary) For Period Debit mghcf:AdjustmentsForDecreaseIncreaseInAmountDueFromRelatedParties
190 Net cash used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
191 Investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
192 Development costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDevelopmentProjectExpenditure
193 Cash inflows as result of acquisition of subsidiaries Concept (Monetary) For Period Debit ifrs-full:CashAndCashEquivalentsInSubsidiaryOrBusinessesAcquiredOrDisposed2013
194 Acquisition of investments Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
195 Proceeds from disposition investments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
196 Net cash outflow from sale of Minco Resources and its subsidiaries Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
197 Proceeds from legal settlement Concept (Monetary) For Period Debit mghcf:ProceedsFromLegalSettlementClassifiedAsInvestingActivities
198 Proceeds from disposition of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
199 Purchase of short-term investments Concept (Monetary) For Period Credit mghcf:PurchaseOfShorttermInvestmentsClassifiedAsInvestingActivities
200 Redemption of short-term investments Concept (Monetary) For Period Debit mghcf:ProceedsFromRedemptionOfShortTermInvestments
201 Net cash generated from (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
202 Financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
203 Proceeds from stock option exercises Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
204 Proceeds from a share subscription of a 51%-owned subsidiary Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
205 Net cash generated from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
206 Effect of exchange rate changes on cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
207 (Decrease) increase in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
208 Cash and cash equivalents- Beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
209 Cash and cash equivalents - End of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
210 107 - Disclosure - General information Network

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211 Disclosure of general information [Table] Table

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212 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
213 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
214 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
215 Disclosure of general information [Line Items] LineItems mghcf:DisclosureOfGeneralInformationLineItems
216 Disclosure of general information about financial statements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralInformationAboutFinancialStatementsExplanatory
217 108 - Disclosure - Basis of presentation Network

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218 Disclosure of basis of preparation [table] Table

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219 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
220 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
221 Minco Silver Corp [member] Member mghcf:MincoSilverCorpMember
222 Disclosure of basis of preparation [line items] LineItems mghcf:DisclosureOfBasisOfPreparationLineItems
223 Disclosure of basis of preparation of financial statements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
224 109 - Disclosure - Summary of significant accounting policies Network

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225 Disclosure of summary of significant accounting policies [table] Table

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226 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
227 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
228 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
229 Disclosure of summary of significant accounting policies [line items] LineItems mghcf:DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems
230 Disclosure of significant accounting policies [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
231 110 - Disclosure - Critical accounting estimates and judgments Network

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232 Disclosure of critical accounting estimates and judgments [Table] Table

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233 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
234 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
235 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
236 Disclosure of critical accounting estimates and judgments [Line Items] LineItems mghcf:DisclosureOfCriticalAccountingEstimatesAndJudgmentsLineItems
237 Disclosure of accounting judgements and estimates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
238 111 - Disclosure - Cash and cash equivalents Network

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239 Disclosure of cash and cash equivalents [Table] Table

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240 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
241 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
242 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
243 Disclosure of cash and cash equivalents [Line Items] LineItems mghcf:DisclosureOfCashAndCashEquivalentsLineItems
244 Disclosure of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
245 112 - Disclosure - Short-term investment Network

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246 Disclosure of short-term investment [Table] Table

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247 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
248 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
249 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
250 Disclosure of short-term investment [Line Items] LineItems mghcf:DisclosureOfShorttermInvestmentLineItems
251 Disclosure of investments other than investments accounted for using equity method [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethodExplanatory
252 113 - Disclosure - Investment in an associate Network

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253 Implied Table Table

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254 Disclosure of investment in an associate [Abstract] Abstract mghcf:DisclosureOfInvestmentInAssociateAbstract
255 Disclosure of interests in associates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInterestsInAssociatesExplanatory
256 114 - Disclosure - Gain on legal settlement Network

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257 Implied Table Table

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258 Disclosure of gain on legal settlement [Abstract] Abstract mghcf:DisclosureOfGainOnLegalSettlementAbstract
259 Disclosure of mineral interests [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfGainOnLegalSettlementTextBlock
260 115 - Disclosure - Share capital Network

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261 Disclosure of share capital [Table] Table

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262 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
263 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
264 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
265 Disclosure of share capital [Line Items] LineItems mghcf:DisclosureOfShareCapitalLineItems
266 Disclosure of classes of share capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfClassesOfShareCapitalExplanatory
267 116 - Disclosure - Income taxes Network

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268 Disclosure of income tax [Table] Table

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269 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
270 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
271 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
272 Disclosure of income tax [Line Items] LineItems mghcf:DisclosureOfIncomeTaxLineItems
273 Disclosure of income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
274 117 - Disclosure - Geographical information Network

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275 Disclosure of geographical areas [table] Table

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276 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
277 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
278 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
279 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
280 Disclosure of geographical areas [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeographicalAreasExplanatory
281 118 - Disclosure - Commitments Network

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282 Disclosure of commitments [Table] Table

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283 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
284 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
285 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
286 Disclosure of commitments [Line Items] LineItems mghcf:DisclosureOfCommitmentsLineItems
287 Disclosure of commitments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
288 119 - Disclosure - Related party transactions Network

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289 Disclosure of related party transactions [Table] Table

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290 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
291 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
292 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
293 Disclosure of related party transactions [Line Items] Abstract mghcf:DisclosureOfRelatedPartyTransactionsLineItem
294 Disclosure of related party [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
295 120 - Disclosure - Financial instruments and fair value Network

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296 Disclosure of financial instruments and fair value [Table] Table

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300 Disclosure of financial instruments and fair value [Line Items] LineItems mghcf:DisclosureOfFinancialInstrumentsAndFairValueLineItems
301 Disclosure of financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
302 121 - Disclosure - Capital management Network

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303 Disclosure Capital management [Table] Table

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308 Disclosure of objectives, policies and processes for managing capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory
309 122 - Disclosure - Subsequent event Network

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310 Disclosure of non-adjusting events after reporting period [table] Table

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315 Disclosure of non-adjusting events after reporting period [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNonadjustingEventsAfterReportingPeriodExplanatory
316 123 - Disclosure - Summary of significant accounting policies (Policies) Network

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317 Disclosure of summary of significant accounting policies [Table] Table

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319 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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321 Disclosure of summary of significant accounting policies [Line Items] LineItems mghcf:DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems
322 Description of accounting policy for basis of measurement [text Block] Concept (Text Block (HTML)) For Period mghcf:DescriptionOfAccountingPolicyForBasisOfMeasurementTextBlock
323 Description of accounting policy for consolidation [text Block] Concept (Text Block (HTML)) For Period mghcf:DescriptionOfAccountingPolicyForConsolidationTextBlock
324 Description of accounting policy for determining components of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
325 Description of accounting policy for short term investment [text Block] Concept (Text Block (HTML)) For Period mghcf:DescriptionOfAccountingPolicyForShortTermInvestmentTextBlock
326 Description of accounting policy for investment in associates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForInvestmentInAssociates
327 Description of accounting policy for foreign currency translation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
328 Description of accounting policy for financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
329 Description of accounting policy for impairment of financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfFinancialAssetsExplanatory
330 Description of accounting policy for share-based payment transactions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
331 Description of accounting policy for exploration and evaluation expenditures [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures
332 Description of accounting policy for issued capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIssuedCapitalExplanatory
333 Description of accounting policy for earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
334 Description of accounting policy for income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
335 Description of accounting policy for accounting standards and amendments issued but not yet applied [text Block] Concept (Text Block (HTML)) For Period mghcf:DescriptionOfAccountingPolicyForAccountingStandardsAndAmendmentsIssuedButNotYetAppliedTextBlock
336 Description of accounting policy for property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
337 Description of accounting policy for impairment of non-financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
338 Description of accounting policy for decommissioning, restoration and rehabilitation provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForDecommissioningRestorationAndRehabilitationProvisionsExplanatory
339 124 - Disclosure - Summary of significant accounting policies (Tables) Network

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340 Disclosure of summary of significant accounting policies [table] Table

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341 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
342 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
343 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
344 Disclosure of summary of significant accounting policies [Line Items] LineItems mghcf:DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems
345 Disclosure of subsidiaries [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesExplanatory
346 Disclosure of detailed information about property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
347 125 - Disclosure - Cash and cash equivalents (Tables) Network

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348 Disclosure of cash and cash equivalents [Table] Table

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349 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
350 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
351 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
352 Disclosure of cash and cash equivalents [Line Items] LineItems mghcf:DisclosureOfCashAndCashEquivalentsLineItems
353 Disclosure of Detailed Information About Cash And Cash Equivalent [Text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutCashAndCashEquivalentTextBlock
354 126 - Disclosure - Short-term investments (Tables) Network

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355 Disclosure of Short-term investments [Table] Table

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356 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
357 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
358 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
359 Disclosure of Short-term investments [Line Items] LineItems mghcf:DisclosureOfShorttermInvestmentsLineItemLineItems
360 Disclosure of detailed information regarding short term investments [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfShorttermInvestments
361 127 - Disclosure - Investments at FVTPL (Tables) Network

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362 Implied Table Table

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363 Disclosure of Investments at FVTPL [Abstract] Abstract mghcf:DisclosureOfInvestmentsAtFvtplAbstract
364 Disclosure of detailed information about investment at fair value [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutInvestmentAtFairValueTextBlock
365 Disclosure of detailed information about gain(loss) on investment at fair value [text block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutGainlossOnInvestmentAtFairValueTextBlock
366 128 - Disclosure - Mineral interests (Tables) Network

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367 Disclosure of mineral interests [Table] Table

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368 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
369 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
370 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
371 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
372 Assets [member] Member ifrs-full:ClassesOfAssetsMember
373 Fuwan Silver Project [Member] Member mghcf:FuwanSilverProjectMember
374 Changkeng Project [Member] Member mghcf:ChangkengProjectMember
375 Disclosure of mineral interests [Line Items] LineItems mghcf:DisclosureOfMineralInterestsLineItems
376 Disclosure of exploration and evaluation assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExplorationAndEvaluationAssetsExplanatory
377 Disclosure of detailed information about exploration and evaluation assets [text block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutExplorationAndEvaluationAssetsTextBlock
378 129 - Disclosure - Investment in an associate (Tables) Network

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379 Implied Table Table

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380 Disclosure of investment in an associate [Abstract] Abstract mghcf:DisclosureOfInvestmentInAssociateAbstract
381 Disclosure of associates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSignificantInvestmentsInAssociatesExplanatory
382 Disclosure of detailed information about income statement of associates [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutIncomeStatementOfAssociatesTextBlock
383 130 - Disclosure - Share capital (Tables) Network

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384 Disclosure of share capital [Table] Table

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386 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
387 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
388 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
389 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
390 Performance share units [Member] Member mghcf:PerformanceShareUnitsMember
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392 Disclosure of number and weighted average exercise prices of share options [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
393 Disclosure of range of exercise prices of outstanding share options [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory
394 Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory
395 Disclosure of number and weighted average fair value per unit of other equity instruments [Text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfNumberAndWeightedAverageFairValuePerUnitOfOtherEquityInstrumentsTextBlock
396 131 - Disclosure - Income tax (Tables) Network

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397 Disclosure of income tax [Table] Table

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398 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
399 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
400 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
401 Disclosure of income tax [Line Items] LineItems mghcf:DisclosureOfIncomeTaxLineItems
402 Disclosure of detailed information about difference in income tax expense resulting from applying the Canadian federal and provincial income tax rates [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutDifferenceInIncomeTaxExpenseResultingFromApplyingCanadianFederalAndProvincialIncomeTaxRatesTextBlock
403 Disclosure of detailed information about unrecognised deferred income tax assets liabilities [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutUnrecognisedDeferredIncomeTaxAssetsLiabilitiesTextBlock
404 Disclosure of detailed information about expiry of canadian non capital losses [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutExpiryOfCanadianNonCapitalLossesTextBlock
405 132 - Disclosure - Commitments (Tables) Network

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406 Disclosure of commitments [Table] Table

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407 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
408 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
409 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
410 Disclosure of commitments [Line Items] LineItems mghcf:DisclosureOfCommitmentsLineItems
411 Disclosure of detailed information about commitments [Text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutCommitmentsTextBlock
412 Disclosure of finance lease and operating lease by lessee [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
413 133 - Disclosure - Non-controlling interest (“NCI”) (Tables) Network

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414 Disclosure Of Interests In Subsidiaries [Table] Table

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416 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
417 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
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419 Disclosure of detailed information about financial information of subsidiaries [text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureOfDetailedInformationAboutFinancialInformationOfSubsidiariesTextBlock
420 134 - Disclosure - Related party transactions (Tables) Network

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421 Disclosure of related party transactions [Table] Table

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423 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
424 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
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426 Disclosure of amounts incurred by entity for provision of key management personnel services provided by separate management entities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAmountsIncurredByEntityForProvisionOfKeyManagementPersonnelServicesProvidedBySeparateManagementEntitiesExplanatory
427 135 - Disclosure - Geographical information (Tables) Network

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428 Disclosure of geographical areas [table] Table

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430 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
431 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
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433 Disclosure detailed information about of geographical areas [Text Block] Concept (Text Block (HTML)) For Period mghcf:DisclosureDetailedInformationAboutOfGeographicalAreasTextBlock
434 136 - Disclosure - Financial instruments and fair value (Tables) Network

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435 Disclosure of financial instruments and fair value [Table] Table

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437 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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440 Disclosure of detailed information about financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
441 Disclosure of financial instruments at fair value through profit or loss [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsAtFairValueThroughProfitOrLossExplanatory
442 137 - Disclosure - General information (Details Textual) Network

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443 Disclosure of general information [table] Table

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445 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
446 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
447 Equity [member] Member ifrs-full:EquityMember
448 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
449 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
450 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
451 Guangdong mingzhong mining co [Member] Member mghcf:GuangdongMingzhongMiningCoMember
452 Mingzhong [Member] Member mghcf:MingzhongMember
453 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
454 Assets [member] Member ifrs-full:ClassesOfAssetsMember
455 Current investments [Member] Member mghcf:CurrentInvestmentsMember
456 Disclosure of general information [line items] LineItems mghcf:DisclosureOfGeneralInformationLineItems
457 Gains (losses) recognised when control of subsidiary is lost Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedWhenControlInSubsidiaryIsLost
458 Cash flows from losing control of subsidiaries or other businesses, classified as investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromLosingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
459 Proportion of ownership interest in associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
460 Proportion of voting rights held by minority shareholder Concept (Percent) For Period mghcf:ProportionOfVotingRightsHeldByMinorityShareholder
461 Disposal of business, consideration Concept (Monetary) As Of Debit mghcf:DisposalOfBusinessConsideration
462 Amounts subject to enforceable master netting arrangement or similar agreement not set off against financial assets Concept (Monetary) As Of Credit ifrs-full:AmountsSubjectToEnforceableMasterNettingArrangementOrSimilarAgreementNotSetOffAgainstFinancialAssets
463 Gain (loss) that relates to identifiable assets acquired or liabilities assumed in business combination and is of such size, nature or incidence that disclosure is relevant to understanding combined entity's financial statements Concept (Monetary) For Period Credit ifrs-full:GainLossThatRelatesToIdentifiableAssetsAcquiredOrLiabilitiesAssumedInBusinessCombination
464 Consideration paid (received) Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
465 Investment property carried at cost or in accordance with IFRS 16 within fair value model, at time of sale Concept (Monetary) As Of Debit ifrs-full:InvestmentPropertyCarriedAtCostOrInAccordanceWithIFRS16WithinFairValueModelAtTimeOfSale
466 Gains (losses) on disposals of investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
467 Acquisition-related costs for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
468 Adjustments for gain (loss) on disposal of investments in subsidiaries, joint ventures and associates Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
469 Non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
470 Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for entity's own equity instruments held at end of period, fair value measurement Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForEntitysOwnEquityInstrumentsHeldAtEndOfPeriodFairValueMeasurement
471 138 - Disclosure - Summary of significant accounting policies (Details) Network

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472 Disclosure of summary of significant accounting policies [Table] Table

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473 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
474 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
475 Minco China [Member] Member mghcf:MincoChinaMember
476 Yuanling Minco [Member] Member mghcf:YuanlingMincoMember
477 Tibet Minco [Member] Member mghcf:TibetMincoMember
478 Minco Resources [Member] Member mghcf:MincoResourcesMember
479 Mingzhong [Member] Member mghcf:MingzhongMember
480 Minco Yinyuan [Member] Member mghcf:MincoYinyuanMember
481 Minco HK [Member] Member mghcf:MincoHkMember
482 Changfu Minco [Member] Member mghcf:ChangfuMincoMember
483 Zhongjia [Member] Member mghcf:ZhongjiaMember
484 Huaihua [Member] Member mghcf:HuaihuaMember
485 Minco International Resources [Member] Member mghcf:MincoInternationalResourcesMember
486 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
487 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
488 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
489 Disclosure of summary of significant accounting policies [Line Items] LineItems mghcf:DisclosureOfSummaryOfSignificantAccountingPoliciesLineItems
490 Name of subsidiary Concept (Text/String) For Period ifrs-full:NameOfSubsidiary
491 Description of principal activities of subsidiaries Concept (Text/String) For Period mghcf:DescriptionOfPrincipalActivitiesOfSubsidiaries
492 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
493 Country of incorporation of subsidiary Concept (Text/String) For Period ifrs-full:CountryOfIncorporationOrResidenceOfSubsidiary
494 139 - Disclosure - Summary of significant accounting policies (Details 1) Network

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495 Disclosure of summary of significant accounting policies [Table] Table

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496 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
497 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
498 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
499 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
500 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
501 Mining property [member] Member ifrs-full:MiningPropertyMember
502 Motor vehicles [member] Member ifrs-full:MotorVehiclesMember
503 Leasehold improvements [member] Member ifrs-full:LeaseholdImprovementsMember
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505 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
506 140 - Disclosure - Summary of significant accounting policies (Details Textual) Network

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507 Disclosure of summary of significant accounting policies [Table] Table

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508 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
509 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
510 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
511 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
512 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
513 Mingzhong [Member] Member mghcf:MingzhongMember
514 Zhongjia [Member] Member mghcf:ZhongjiaMember
515 Changfu Minco [Member] Member mghcf:ChangfuMincoMember
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517 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
518 141 - Disclosure - Cash and cash equivalents (Details) Network

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519 Disclosure of cash and cash equivalents [Table] Table

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521 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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526 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
527 142 - Disclosure - Cash and cash equivalents (Details Textual) Network

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528 Disclosure of cash and cash equivalents [Table] Table

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 mghcf:DisclosureOfCashAndCashEquivalentsTable
529 Currencye [Axis] Axis mghcf:CurrencyeAxis
530 Currency [Domain] Member mghcf:CurrencyDomain
531 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
532 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
533 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
534 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
535 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
536 Resided in China [Member] Member mghcf:ResidedInChinaMember
537 Disclosure of cash and cash equivalents [Line Items] LineItems mghcf:DisclosureOfCashAndCashEquivalentsLineItems
538 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
539 143 - Disclosure - Short-term investments (Details) Network

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540 Disclosure of Short-term investments [Table] Table

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 mghcf:DisclosureOfShorttermInvestmentsTable
541 Types Of Investment [Axis] Axis mghcf:TypesOfInvestmentAxis
542 Types Of Investment [Domain] Member mghcf:TypesOfInvestmentDomain
543 Corporate bonds One [Member] Member mghcf:CorporateBondsOneMember
544 Term Deposits One [Member] Member mghcf:TermDepositsOneMember
545 Term Deposits Two [Member] Member mghcf:TermDepositsTwoMember
546 Term Deposits Three [Member] Member mghcf:TermDepositsThreeMember
547 Range [axis] Axis ifrs-full:RangeAxis
548 Ranges [member] Member ifrs-full:RangesMember
549 Top of range [member] Member ifrs-full:TopOfRangeMember
550 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
551 Disclosure of Short-term investments [Line Items] LineItems mghcf:DisclosureOfShorttermInvestmentsLineItems
552 Current investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
553 Short term investment term Concept (Text/String) For Period mghcf:ShortTermInvestmentTerm
554 Investments From Interest Rate Concept (Percent) As Of mghcf:InvestmentsFromInterestRate
555 144 - Disclosure - Short-term investment (Details Textual) Network

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556 Disclosure of short-term investment [Table] Table

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 mghcf:DisclosureOfShorttermInvestmentTable
557 Range [axis] Axis ifrs-full:RangeAxis
558 Ranges [member] Member ifrs-full:RangesMember
559 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
560 Top of range [member] Member ifrs-full:TopOfRangeMember
561 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
562 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
563 China [Member] Member mghcf:ChinaMember
564 Disclosure of short-term investment [Line Items] LineItems mghcf:DisclosureOfShorttermInvestmentLineItems
565 Current investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
566 Short term investments, yield rate Concept (Percent) As Of mghcf:ShortTermInvestmentsyieldRate
567 145 - Disclosure - Investments at FVTPL (Details) Network

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568 Disclosure of Investments at FVTPL [Table] Table

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 mghcf:DisclosureOfInvestmentsAtFvtplTable
569 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
570 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
571 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
572 Hudson Resources Inc One [Member] Member mghcf:HudsonResourcesIncOneMember
573 RoxGold Inc [Member] Member mghcf:RoxgoldIncMember
574 Continental Gold Inc [Member] Member mghcf:ContinentalGoldIncMember
575 Equinox Gold Corp [Member] Member mghcf:EquinoxGoldCorpMember
576 Guyana Goldfields Inc [Member] Member mghcf:GuyanaGoldfieldsIncMember
577 Neo Performance Materials Inc [Member] Member mghcf:NeoPerformanceMaterialsIncMember
578 ETFS Physical Palladium [Member] Member mghcf:EtfsPhysicalPalladiumMember
579 Almaden Minerals Ltd [Member] Member mghcf:AlmadenMineralsLtdMember
580 All other public entities [Member] Member mghcf:AllOtherPublicEntitiesMember
581 El Olivar Imperial [Member] Member mghcf:ElOlivarImperialMember
582 Hudson Resources Inc Two [Member] Member mghcf:HudsonResourcesIncTwoMember
583 Disclosure of Investments at FVTPL [Line Items] LineItems mghcf:DisclosureOfInvestmentsAtFvtplLineItems
584 Number of Shares/Units Held Concept (Shares) As Of mghcf:NumberOfSharesHeld
585 Number of Warrants Held Concept (Shares) As Of mghcf:NumberOfWarrantsHeld
586 Market Value Concept (Monetary) As Of Debit mghcf:OtherInvestmentAtFairValue
587 146 - Disclosure - Investments at FVTPL (Details 1) Network

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588 Disclosure of Investments at FVTPL [Table] Table

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 mghcf:DisclosureOfInvestmentsAtFvtplTable
589 Investment by category [Axis] Axis mghcf:InvestmentByCategoryAxis
590 Investment by category [Domain] Member mghcf:InvestmentByCategoryDomain
591 Shares and partnership units [Member] Member mghcf:SharesAndPartnershipUnitsMember
592 Share purchase warrants [Member] Member mghcf:SharePurchaseWarrantsMember
593 Share and warrants [Member] Member mghcf:ShareAndWarrantsMember
594 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
595 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
596 El Olivar Imperial [Member] Member mghcf:ElOlivarImperialMember
597 Disclosure of Investments at FVTPL [Line Items] LineItems mghcf:DisclosureOfInvestmentsAtFvtplLineItems
598 Balance Concept (Monetary) As Of Debit mghcf:OtherInvestmentAtFairValue
599 Additions Concept (Monetary) For Period Debit mghcf:AdditionsToOtherInvestments
600 Dispositions Concept (Monetary) For Period Credit mghcf:DispositionsOfOtherInvestments
601 Unrealized gains (losses) Concept (Monetary) For Period Credit mghcf:UnrealizedGainLossFromOtherInvestments
602 Balance Concept (Monetary) As Of Debit mghcf:OtherInvestmentAtFairValue
603 147 - Disclosure - Investments at FVTPL (Details Textual) Network

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604 Disclosure of Investments at FVTPL [Table] Table

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 mghcf:DisclosureOfInvestmentsAtFvtplTable
605 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
606 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
607 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
608 El Olivar Imperial SAC [Member] Member mghcf:ElOlivarImperialSacMember
609 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
610 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
611 Class A shares [Member] Member mghcf:ClassSharesMember
612 Investment by category [Axis] Axis mghcf:InvestmentByCategoryAxis
613 Investment by category [Domain] Member mghcf:InvestmentByCategoryDomain
614 Shares and partnership units [Member] Member mghcf:SharesAndPartnershipUnitsMember
615 Disclosure of Investments at FVTPL [Line Items] LineItems mghcf:DisclosureOfInvestmentsAtFvtplLineItems
616 Number of shares in entity held by entity or by its subsidiaries or associates Concept (Shares) As Of ifrs-full:SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
617 Proportion of ownership interest in associate Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInAssociate
618 Number of units acquired Concept (Shares) For Period mghcf:NumberOfUnitsAcquired
619 Price per unit Concept (Share) For Period mghcf:PricePerUnit
620 Other Investments At Fair Value, NonCurrent Concept (Monetary) As Of Debit mghcf:OtherInvestmentsAtFairValueNoncurrent
621 Additions to other investments Concept (Monetary) For Period Debit mghcf:AdditionsToOtherInvestments
622 Proceeds from disposition of investments, operating activities Concept (Monetary) For Period Debit mghcf:ProceedsFromDispositionOfInvestmentsOperatingActivities
623 Gains on disposals of investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
624 Other Investment At Fair Value Concept (Monetary) As Of Debit mghcf:OtherInvestmentAtFairValue
625 148 - Disclosure - Mineral interests (Details) Network

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626 Disclosure of mineral interests [Table] Table

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 mghcf:DisclosureOfMineralInterestsTable
627 Projects [Axis] Axis mghcf:ProjectsAxis
628 Projects [Domain] Member mghcf:ProjectsDomain
629 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
630 Assets [member] Member ifrs-full:ClassesOfAssetsMember
631 Fuwan Silver Project [Member] Member mghcf:FuwanSilverProjectMember
632 Changkeng Project [Member] Member mghcf:ChangkengProjectMember
633 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
634 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
635 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
636 Disclosure of mineral interests [Line Items] LineItems mghcf:DisclosureOfMineralInterestsLineItems
637 Mineral interests Concept (Monetary) As Of Debit mghcf:AssetsArisingFromMineralResources
638 149 - Disclosure - Mineral interests (Details 1) Network

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639 Disclosure of mineral interests [Table] Table

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 mghcf:DisclosureOfMineralInterestsTable
640 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
641 Assets [member] Member ifrs-full:ClassesOfAssetsMember
642 Fuwan Silver Project [Member] Member mghcf:FuwanSilverProjectMember
643 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
644 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
645 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
646 Disclosure of mineral interests [Line Items] LineItems mghcf:DisclosureOfMineralInterestsLineItems
647 Opening Balance - January 1 Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
648 Consulting fees Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureConsultingFeesCapitalized
649 Salaries and benefits Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureSalariesAndBenefitsCapitalized
650 Share-based compensation (note 10(b)) Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureShareBasedCompensationCapitalized
651 Mine design costs Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureMineDesignCostCapitalized
652 Mining license application Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureMiningLicenseApplicationCapitalized
653 Environment impact assessment Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureEnvironmentImpactAssessmentCapitalized
654 Travel Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureTravelCapitalized
655 Other Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureOtherCostsCapitalized
656 Effect of change in the exchange rate with RMB Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureExchangeRateEffectCapitalized
657 Ending Balance - December 31 Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
658 150 - Disclosure - Mineral interests (Details 2) Network

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659 Disclosure of mineral interests [Table] Table

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 mghcf:DisclosureOfMineralInterestsTable
660 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
661 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
662 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
663 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
664 Assets [member] Member ifrs-full:ClassesOfAssetsMember
665 Changkeng Project [Member] Member mghcf:ChangkengProjectMember
666 Disclosure of mineral interests [Line Items] LineItems mghcf:DisclosureOfMineralInterestsLineItems
667 Opening Balance - January 1 Concept (Monetary) As Of Debit ifrs-full:IntangibleExplorationAndEvaluationAssets
668 Consulting Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureConsultingFeesCapitalized
669 Salaries and benefits Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureSalariesAndBenefitsCapitalized
670 Share-based compensation (note 10(b)) Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureShareBasedCompensationCapitalized
671 Mine design Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureMineDesignCostCapitalized
672 Others Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureOtherCostsCapitalized
673 Effect of change in the exchange rate with RMB Concept (Monetary) For Period Debit mghcf:CapitalizedDevelopmentExpenditureExchangeRateEffectCapitalized
674 Ending Balance - December 31 Concept (Monetary) As Of Debit ifrs-full:IntangibleExplorationAndEvaluationAssets
675 151 - Disclosure - Mineral interests (Details Textual) Network

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676 Disclosure of mineral interests [Table] Table

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 mghcf:DisclosureOfMineralInterestsTable
677 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
678 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
679 Changfu Minco [Member] Member mghcf:ChangfuMincoMember
680 Mingzhong Mining Co. Ltd [Member] Member mghcf:MingzhongMiningCoLtdMember
681 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
682 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
683 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
684 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
685 Counterparties [member] Member ifrs-full:CounterpartiesMember
686 Guangdong Geological Bureau [Member] Member mghcf:GuangdongGeologicalBureauMember
687 Disclosure of mineral interests [Line Items] LineItems mghcf:DisclosureOfMineralInterestsLineItems
688 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
689 Proportion of ownership interests held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
690 152 - Disclosure - Investment in an associate (Details) Network

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691 Implied Table Table

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 implied:Table
692 Disclosure of investment in an associate [Abstract] Abstract mghcf:DisclosureOfInvestmentInAssociateAbstract
693 Beginning of period Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
694 Dilution loss Concept (Monetary) For Period Debit mghcf:DilutionLossOnInvestmentsInAssociate
695 Share of Minco Silver’s income (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfProfitLossOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
696 Share of Minco Silver’s other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:ShareOfOtherComprehensiveIncomeOfAssociatesAndJointVenturesAccountedForUsingEquityMethod
697 Ending of period Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
698 153 - Disclosure - Investment in an associate (Details 1) Network

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699 Disclosure of investment in an associate [Table] Table

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 mghcf:DisclosureOfInvestmentInAssociateTable
700 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
701 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
702 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
703 Disclosure of investment in an associate [Line Items] LineItems mghcf:DisclosureOfInvestmentInAssociateLineItems
704 Administrative expenses Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
705 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
706 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
707 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
708 Comprehensive income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
709 154 - Disclosure - Investment in an associate (Details Textual) Network

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710 Disclosure of investment in an associate [Table] Table

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 mghcf:DisclosureOfInvestmentInAssociateTable
711 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
712 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
713 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
714 Disclosure of investment in an associate [Line Items] LineItems mghcf:DisclosureOfInvestmentInAssociateLineItems
715 Investments in associates Concept (Monetary) As Of Debit ifrs-full:InvestmentsInAssociates
716 155 - Disclosure - Non-controlling interest (“NCI”) (Details) Network

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717 Disclosure Of Interests In Subsidiaries [Table] Table

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*

 mghcf:DisclosureOfInterestsInSubsidiariesTable
718 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
719 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
720 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
721 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
722 Mingzhong Mining Co. Ltd [Member] Member mghcf:MingzhongMiningCoLtdMember
723 Disclosure Of Interests In Subsidiaries [Line Items] LineItems mghcf:DisclosureOfInterestsInSubsidiariesLineItems
724 NCI percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
725 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
726 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
727 Net current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssetsLiabilities
728 Non-current asset Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
729 Net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
730 Accumulated NCI Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
731 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
732 Loss allocated to non-controlling interest Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
733 Cash inflows (outflow) from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
734 Cash inflow from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
735 Cash inflow (outflows) from investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
736 156 - Disclosure - Non-controlling interest (“NCI”) (Details Textual) Network

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*

 http://www.mincomining.com/role/NoncontrollingInterestNciDetailsTextual
737 Disclosure Non-controlling interest NCI” [Table] Table

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*

 mghcf:DisclosureNoncontrollingInterestNciTable
738 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
739 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
740 Mingzhong [Member] Member mghcf:MingzhongMember
741 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
742 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
743 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
744 Major ordinary share transactions [member] Member ifrs-full:MajorOrdinaryShareTransactionsMember
745 Disclosure of Non-controlling interest NCI” [Line Items] LineItems mghcf:DisclosureOfNoncontrollingInterestNciLineItems
746 Proceeds from issuing shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
747 157 - Disclosure - Gain on legal settlement (Details Textual) Network

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 http://www.mincomining.com/role/GainOnLegalSettlementDetailsTextual
748 Disclosure of gain on legal settlement [Table] Table

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 mghcf:DisclosureOfGainOnLegalSettlementTable
749 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
750 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
751 Minco China [Member] Member mghcf:MincoChinaMember
752 Disclosure of gain on legal settlement [Line Items] LineItems mghcf:DisclosureOfGainOnLegalSettlementLineItems
753 Proceeds to be received from legal settlement Concept (Monetary) As Of Debit mghcf:ProceedsToBeReceivedFromLegalSettlement
754 Gains on litigation settlements Concept (Monetary) For Period Credit ifrs-full:GainsOnLitigationSettlements
755 158 - Disclosure - Investments (Details Textual) Network

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 http://www.mincomining.com/role/InvestmentsDetailsTextual
756 Disclosure of Investments [Table] Table

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 mghcf:DisclosureOfInvestmentsTable
757 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
758 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
759 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
760 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
761 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
762 Disclosure of Investments [Line Items] LineItems mghcf:DisclosureOfInvestmentsLineItems
763 Purchase of or proceeds from investments Concept (Monetary) For Period Credit mghcf:PurchaseOfOrProceedsFromInvestments
764 Gains on disposals of investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
765 unrealised gain Loss on investment, net of tax Concept (Monetary) For Period Credit mghcf:UnrealisedGainLossOnInvestmentNetOfTax
766 159 - Disclosure - Share capital (Details) Network

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767 Disclosure of share capital [Table] Table

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*

 mghcf:DisclosureOfShareCapitalTable
768 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
769 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
770 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
771 Disclosure of share capital [Line Items] LineItems mghcf:DisclosureOfShareCapitalLineItems
772 Balance Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
773 Granted, Number outstanding Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
774 Exercised, Number outstanding Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
775 Forfeited, Number outstanding Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
776 Expired, Number outstanding Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
777 Balance Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
778 Balance Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
779 Weighted average exercise price of share options granted in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
780 Weighted average exercise price of share options forfeited in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
781 Weighted average exercise price of share options expired in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
782 Weighted average exercise price of share options exercised in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
783 Balance Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
784 160 - Disclosure - Share capital (Details 1) Network

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785 Disclosure of share capital [Table] Table

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*

 mghcf:DisclosureOfShareCapitalTable
786 Range [axis] Axis ifrs-full:RangeAxis
787 Ranges [member] Member ifrs-full:RangesMember
788 Range of exercise prices 0.18 - 0.24 Member mghcf:ExcercisePriceRangeOneMember
789 Range of exercise prices 0.25 - 0.42 Member mghcf:ExcercisePriceRangeTwoMember
790 Range of exercise prices 0.43 - 0.46 Member mghcf:ExcercisePriceRangeThreeMember
791 Range of exercise prices 2.01 - 2.35 Member mghcf:ExcercisePriceRangeFourMember
792 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
793 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
794 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
795 Disclosure of share capital [Line Items] LineItems mghcf:DisclosureOfShareCapitalLineItems
796 Number of Options outstanding Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
797 Options outstanding, Weighted average remaining contractual life (years) Concept (xbrli:durationItemType) For Period mghcf:WeightedAverageRemainingContractualLifeOfOutstandingShare
798 Options outstanding, Weighted average exercise price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
799 Number of Options exercisable Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
800 Options exercisable, Weighted average exercise price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
801 161 - Disclosure - Share capital (Details 2) Network

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802 Disclosure of share capital [Table] Table

*

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 mghcf:DisclosureOfShareCapitalTable
803 Range [axis] Axis ifrs-full:RangeAxis
804 Ranges [member] Member ifrs-full:RangesMember
805 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
806 Top of range [member] Member ifrs-full:TopOfRangeMember
807 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
808 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
809 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
810 Disclosure of share capital [Line Items] LineItems mghcf:DisclosureOfShareCapitalLineItems
811 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
812 Dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
813 Volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
814 Forfeiture rate Concept (Percent) For Period mghcf:ForfeitureRateShareOptionsGranted
815 Estimated expected lives Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
816 162 - Disclosure - Share capital (Details 3) Network

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817 Disclosure of classes of share capital [table] Table

*

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 ifrs-full:DisclosureOfClassesOfShareCapitalTable
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820 Performance share units [Member] Member mghcf:PerformanceShareUnitsMember
821 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
822 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
823 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
824 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
825 Number outstanding, Beginning balance Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
826 Number outstanding, Forfeited Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
827 Number outstanding, Granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
828 Number outstanding, Ending balance Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
829 Weighted average fair value, Beginning balance Concept (Monetary) As Of Credit mghcf:WeightedAverageFairValuePerUnitOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
830 Weighted average fair value, Forfeited Concept (Monetary) For Period Credit mghcf:WeightedAverageFairValuePerUnitOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
831 Weighted average fair value, Granted Concept (Monetary) For Period Credit mghcf:WeightedAverageFairValuePerUnitOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement
832 Weighted average fair value, Ending balance Concept (Monetary) As Of Credit mghcf:WeightedAverageFairValuePerUnitOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
833 163 - Disclosure - Share capital (Details Textual) Network

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834 Disclosure of share capital [Table] Table

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835 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
836 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
837 Stock Option Plan [Member] Member mghcf:StockOptionPlanMember
838 Performance share units [Member] Member mghcf:PerformanceShareUnitsMember
839 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
840 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
841 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
842 Range [axis] Axis ifrs-full:RangeAxis
843 Ranges [member] Member ifrs-full:RangesMember
844 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
845 Top of range [member] Member ifrs-full:TopOfRangeMember
846 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
847 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
848 Subsequent [Member] Member mghcf:SubsequentMember
849 Disclosure of share capital [Line Items] LineItems mghcf:DisclosureOfShareCapitalLineItems
850 Description of maximum term of options granted for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfMaximumTermOfOptionsGrantedForSharebasedPaymentArrangement
851 Number of shares authorised Concept (Shares) As Of ifrs-full:NumberOfSharesAuthorised
852 Number of share options granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
853 Weighted average exercise price of share options granted in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
854 Adjustments for share-based payments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
855 Weighted average exercise price of share options exercised in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
856 Expense from share-based payment transactions in which goods or services received did not qualify for recognition as assets Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets
857 Maximum percent of issued and outstanding common shares to be grant as share based payments Concept (Percent) As Of mghcf:MaximumPercentOfIssuedAndOutstandingCommonSharesToBeGrantAsShareBasedPayments
858 Increase (decrease) through share-based payment transactions, equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
859 Expense from share-based payment transactions with employees Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
860 share-based compensation expense capitalized Concept (Monetary) For Period Debit mghcf:SharebasedCompensationExpenseCapitalized
861 Number of other equity instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
862 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
863 Number of shares reserved for issue under options and contracts for sale of shares Concept (Shares) As Of ifrs-full:SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
864 Number of share options expired in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
865 Number of other equity instruments expired in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
866 164 - Disclosure - Income tax (Details) Network

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867 Disclosure of income tax [Table] Table

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868 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
869 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
870 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
871 Disclosure of income tax [Line Items] LineItems mghcf:DisclosureOfIncomeTaxLineItems
872 Net income (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
873 Income tax recovery at statutory rates Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
874 Expected tax recovery at statutory income tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
875 Statutory income tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
876 Non-taxable (deductible) expenses Concept (Monetary) For Period Credit mghcf:TaxEffectOfExpenseDeductibleInDeterminingTaxableProfitTaxLoss
877 Difference/change in tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
878 Difference in gain on disposition of Minco Resources Concept (Monetary) For Period Debit mghcf:DifferenceInGainOnDispositionOfMincoResources
879 Reduction of tax attributes from sale of Minco Resources Concept (Monetary) For Period Credit mghcf:ReductionOfTaxAttributesFromSaleOfMincoResources
880 Expiry of non-capital loss carry forward Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
881 Deferred income tax asset not recognized Concept (Monetary) For Period Debit mghcf:DeferredIncomeTaxAssetNotRecognized
882 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
883 Provision for tax expenses Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
884 Non-deductible expenses and other items Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
885 Difference in tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
886 Expiry of losses Concept (Monetary) For Period Debit mghcf:LossesExpired
887 Temporary differences from acquisition transaction Concept (Monetary) For Period Debit mghcf:DifferenceFromAcquisitionTransaction
888 Foreign exchange Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
889 Income tax expense Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
890 165 - Disclosure - Income tax (Details 1) Network

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891 Disclosure of income tax [Table] Table

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892 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
893 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
894 Non-capital loss [Member] Member mghcf:NoncapitalLossMember
895 Resource expenditures [Member] Member mghcf:ResourceExpendituresMember
896 Capital assets [Member] Member mghcf:CapitalAssetsMember
897 Investment [Member] Member mghcf:InvestmentInMincoSilverMember
898 Capital loss [Member] Member mghcf:CapitalLossMember
899 Mineral interests [Member] Member mghcf:MineralInterestsMember
900 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
901 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
902 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
903 Disclosure of income tax [Line Items] LineItems mghcf:DisclosureOfIncomeTaxLineItems
904 Deferred income tax assets (liabilities) not recognized Concept (Monetary) As Of ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
905 166 - Disclosure - Income tax (Details 2) Network

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906 Disclosure of income tax [Table] Table

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907 Maturity [axis] Axis ifrs-full:MaturityAxis
908 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
909 Expiry year One [Member] Member mghcf:ExpiryYearOneMember
910 Expiry year Two [Member] Member mghcf:ExpiryYeaTwoMember
911 Expiry year Three [Member] Member mghcf:ExpiryYearThreeMember
912 Expiry year Four [Member] Member mghcf:ExpiryYearFourMember
913 Expiry year Five [Member] Member mghcf:ExpiryYearFiveMember
914 Expiry year Six [Member] Member mghcf:ExpiryYearSixMember
915 Expiry year Seven [Member] Member mghcf:ExpiryYearSevenMember
916 Expiry year Eight [Member] Member mghcf:ExpiryYearEightMember
917 Expiry year Nine [Member] Member mghcf:ExpiryYearNineMember
918 Expiry year Ten [Member] Member mghcf:ExpiryYearTenMember
919 Expiry Year Eleven [Member] Member mghcf:ExpiryYearElevenMember
920 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
921 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
922 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
923 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
924 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
925 China Subsidiaries [Member] Member mghcf:ChinaSubsidiariesMember
926 Canada Subsidiaries [Member] Member mghcf:CanadaSubsidiariesMember
927 Disclosure of income tax [Line Items] LineItems mghcf:DisclosureOfIncomeTaxLineItems
928 Total non-capital loss Concept (Monetary) For Period Credit mghcf:NoncapitalLossesCarryForwards
929 167 - Disclosure - Income tax (Details Textual) Network

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930 Statement [Table] Table

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931 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
932 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
933 Statement [Line Items] LineItems us-gaap:StatementLineItems
934 Total non-capital loss Concept (Monetary) For Period Credit mghcf:NoncapitalLossesCarryForwards
935 168 - Disclosure - Related party transactions (Details) Network

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936 Disclosure of related party transactions [Table] Table

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937 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
938 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
939 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
940 Disclosure of related party transactions [Line Item] Abstract mghcf:DisclosureOfRelatedPartyTransactionsLineItem
941 Cash remuneration Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
942 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
943 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
944 169 - Disclosure - Related party transactions (Details 1) Network

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945 Disclosure of related party transactions [Table] Table

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946 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
947 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
948 Minco Base Metal [Member] Member mghcf:MincoBaseMetalMember
949 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
950 Disclosure of related party transactions [Line Item] Abstract mghcf:DisclosureOfRelatedPartyTransactionsLineItem
951 Current receivables due from related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
952 Current payables to related parties Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
953 170 - Disclosure - Related party transactions (Details Textual) Network

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954 Disclosure of related party transactions [Table] Table

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955 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
956 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
957 Minco Silver Corporation [Member] Member mghcf:MincoSilverCorporationMember
958 Minco Base Metals Corporation [Member] Member mghcf:MincoBaseMetalsCorporationMember
959 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
960 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
961 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
962 Disclosure of related party transactions [Line Items] LineItems mghcf:DisclosureOfRelatedPartyTransactionsLineItems
963 Amounts receivable, related party transactions Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
964 Amounts payable, related party transactions Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
965 Payments for rentS Concept (Monetary) For Period Credit mghcf:PaymentsForRents
966 Payments for shared head office expenses and administration costs Concept (Monetary) For Period Credit mghcf:PaymentsForSharedHeadOfficeExpensesAndAdministrationCosts
967 Number of share options exercised in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
968 171 - Disclosure - Geographical information (Details) Network

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969 Disclosure of geographical areas [table] Table

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970 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
971 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
972 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
973 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
974 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
975 Canada [Member] Member mghcf:CanadaMember
976 China [Member] Member mghcf:ChinaMember
977 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
978 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
979 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
980 172 - Disclosure - Commitments (Details) Network

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981 Disclosure of commitments [Table] Table

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982 Maturity [axis] Axis ifrs-full:MaturityAxis
983 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
984 Not later than one year [member] Member ifrs-full:NotLaterThanOneYearMember
985 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
986 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
987 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
988 Later than four years and not later than five years [member] Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
989 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
990 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
991 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
992 Disclosure of commitments [Line Items] LineItems mghcf:DisclosureOfCommitmentsLineItems
993 Minimum lease payments payable under non-cancellable operating lease Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
994 173 - Disclosure - Commitments (Details Textual) Network

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995 Implied Table Table

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996 Disclosure of commitments [Abstract] Abstract mghcf:DisclosureOfCommitmentsAbstract
997 Minimum lease payments payable under non-cancellable operating lease Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
998 174 - Disclosure - Financial instruments and fair value (Details) Network

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999 Disclosure of financial instruments and fair value [Table] Table

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1000 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1001 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1002 Minco Silver Corp [Member] Member mghcf:MincoSilverCorpMember
1003 Disclosure of financial instruments and fair value [Line Items] LineItems mghcf:DisclosureOfFinancialInstrumentsAndFairValueLineItems
1004 Fair value through profit and loss Abstract ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossAbstract
1005 Investments at fair value (note 7) Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
1006 Loans and receivables Abstract mghcf:LoansAndReceivablesAbstract
1007 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1008 Short-term investment Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
1009 Receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
1010 Due from related parties Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivablesDueFromRelatedParties
1011 Other Financial Liabilities Abstract ifrs-full:DisclosureOfFinancialLiabilitiesAbstract
1012 Due to related party Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToRelatedParties
1013 Due to minority shareholders Concept (Monetary) As Of Credit mghcf:DueToMinorityShareholders
1014 Accounts payable Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1015 175 - Disclosure - Financial instruments and fair value (Details 1) Network

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1016 Disclosure of financial instruments and fair value [Table] Table

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1017 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
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1020 Level 2 of fair value hierarchy [member] Member ifrs-full:Level2OfFairValueHierarchyMember
1021 Level 3 of fair value hierarchy [member] Member ifrs-full:Level3OfFairValueHierarchyMember
1022 Disclosure of financial instruments and fair value [Line Items] LineItems mghcf:DisclosureOfFinancialInstrumentsAndFairValueLineItems
1023 Current financial assets at fair value through profit or loss Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAtFairValueThroughProfitOrLoss
1024 176 - Disclosure - Financial instruments and fair value (Details 2) Network

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1025 Disclosure of financial instruments and fair value [Table] Table

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1027 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1028 El Olivar Imperial [Member] Member mghcf:ElOlivarImperialMember
1029 Hudson Resources Inc One [Member] Member mghcf:HudsonResourcesIncOneMember
1030 Investment by category [Axis] Axis mghcf:InvestmentByCategoryAxis
1031 Investment by category [Domain] Member mghcf:InvestmentByCategoryDomain
1032 Share purchase warrants [Member] Member mghcf:SharePurchaseWarrantsMember
1033 Disclosure of financial instruments and fair value [Line Items] LineItems mghcf:DisclosureOfFinancialInstrumentsAndFairValueLineItems
1034 Other Investment At Fair Value Concept (Monetary) As Of Debit mghcf:OtherInvestmentAtFairValue
1035 Additions to other investments Concept (Monetary) For Period Debit mghcf:AdditionsToOtherInvestments
1036 Number of shares held Concept (Shares) As Of mghcf:NumberOfSharesHeld
1037 Unrealized gain (loss) recognized in profit or loss Concept (Monetary) For Period Credit mghcf:UnrealizedGainLossFromOtherInvestments
1038 Number of warrants held Concept (Shares) As Of mghcf:NumberOfWarrantsHeld
1039 177 - Disclosure - Financial instruments and fair value (Details Textual) Network

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1040 Disclosure of financial instruments and fair value [Table] Table

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1044 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
1045 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
1046 Unrealised foreign exchange gains (losses) [member] Member ifrs-full:UnrealisedForeignExchangeGainsLossesMember
1047 Disclosure of financial instruments and fair value [Line Items] LineItems mghcf:DisclosureOfFinancialInstrumentsAndFairValueLineItems
1048 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1049 Adjustments for unrealised foreign exchange losses (gains) Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
1050 Non-current financial assets at fair value through profit or loss Concept (Monetary) As Of Debit ifrs-full:NoncurrentFinancialAssetsAtFairValueThroughProfitOrLoss
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1052 Working capital Concept (Monetary) As Of Debit mghcf:WorkingCapital
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1054 Expected volatility, share options granted Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1055 Expected dividend as percentage, share options granted Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
1056 Gains (losses) recognised in profit or loss attributable to change in unrealised gains or losses for assets held at end of period, fair value measurement Concept (Monetary) For Period Credit ifrs-full:GainsLossesRecognisedInProfitOrLossAttributableToChangeInUnrealisedGainsOrLossesForAssetsHeldAtEndOfPeriodFairValueMeasurement
1057 Exercise price, share options granted Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
1058 Option life, share options granted Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1059 Number of share purchase warrants Concept (Shares) As Of mghcf:NumberOfSharePurchaseWarrants
1060 Foreign exchange rate, impact on net loss Concept (Monetary) For Period Credit mghcf:ForeignExchangeRateImpactOnNetLoss
1061 Deposit Insurance Concept (Monetary) As Of Debit mghcf:DepositInsurance
1062 178 - Disclosure - Subsequent events (Detail Textuals) Network

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1063 Disclosure of non-adjusting events after reporting period [table] Table

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1067 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
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1069 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1070 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
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1073 Number of share options granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1074 Option life, share options granted Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1075 Weighted average exercise price of share options granted in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1076 Description of maximum term of options granted for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfMaximumTermOfOptionsGrantedForSharebasedPaymentArrangement
1077 Date of expire of share-based payment arrangement Concept (Text/String) For Period mghcf:DateOfExpireOfSharebasedPaymentArrangement

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