Mountain Province Diamonds Inc. (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 1001 - Document - Document and Entity Information Network

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3 Document and Entity Information [Abstract] Abstract mpvd:DocumentAndEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
10 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
11 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
12 Entity Current Reporting Status Concept (Yes/No) For Period dei:EntityCurrentReportingStatus
13 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
14 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
15 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
16 1002 - Statement - Consolidated Balance Sheets Network

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17 Implied Table Table

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18 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
19 ASSETS Abstract ifrs-full:AssetsAbstract
20 Current assets Abstract ifrs-full:CurrentAssetsAbstract
21 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
22 Amounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
23 Prepaid expenses and other Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
24 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
25 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
26 Reclamation deposit Concept (Monetary) As Of Debit mpvd:ReclamationDeposit
27 Derivative assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
28 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
29 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
30 LIABILITIES AND SHAREHOLDERS' EQUITY Abstract ifrs-full:EquityAndLiabilitiesAbstract
31 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
32 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
33 Derivative liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentDerivativeFinancialLiabilities
34 Income taxes payable Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
35 Total current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
36 Secured notes payable Concept (Monetary) As Of Credit ifrs-full:NoncurrentPortionOfNoncurrentNotesAndDebenturesIssued
37 Decommissioning and restoration liability Concept (Monetary) As Of Credit ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts
38 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
39 Shareholders' equity: Abstract ifrs-full:EquityAbstract
40 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
41 Share-based payments reserve Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
42 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
43 Accumulated other comprehensive income Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
44 Total shareholders' equity Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
45 Total liabilities and shareholders' equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
46 1003 - Statement - Consolidated Statements of Comprehensive (Loss) Income Network

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47 Implied Table Table

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48 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
49 Sales Concept (Monetary) For Period Credit ifrs-full:Revenue
50 Cost of sales: Abstract mpvd:CostOfSalesAbstract
51 Production costs Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
52 Cost of acquired diamonds Concept (Monetary) For Period Debit mpvd:CostOfAcquiredAsset
53 Depreciation and depletion Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
54 Earnings from mine operations Concept (Monetary) For Period Credit mpvd:EarningsFromMineOperations
55 Exploration and evaluation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
56 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
57 Operating income Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
58 Net finance expenses Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
59 Derivative (losses) gains Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
60 Foreign exchange (losses) gains Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
61 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
62 (Loss) income before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
63 Current income taxes Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
64 Deferred income taxes Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
65 Total income taxes Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
66 Net (loss) income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
67 Other comprehensive income [abstract] Abstract ifrs-full:OtherComprehensiveIncomeAbstract
68 Items that will not be reclassified subsequently to profit and loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract
69 Change in fair value of equity securities Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability
70 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
71 Total comprehensive (loss) income for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
72 Basic and diluted (loss) earnings per share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
73 Basic weighted average number of shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
74 Diluted weighted average number of shares outstanding Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
75 1004 - Statement - Consolidated Statements of Equity Network

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76 Statement of changes in equity [table] Table

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77 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
78 Equity [Member] Member ifrs-full:EquityMember
79 Share capital Member ifrs-full:IssuedCapitalMember
80 Share-based payments reserve Member ifrs-full:ReserveOfSharebasedPaymentsMember
81 Deficit Member ifrs-full:RetainedEarningsMember
82 Accumulated other comprehensive income Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
83 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
84 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
85 Balance (in Shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
86 Net income (loss) for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
87 Issuance of common shares – exercise of options Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
88 Issuance of common shares – exercise of options (in Shares) Concept (Shares) For Period ifrs-full:IncreaseDecreaseInNumberOfOrdinarySharesIssued
89 Fair value of options exercised from share-based payments reserve Concept (Monetary) For Period Credit mpvd:IncreaseDecreaseThroughFairValueOfSharesOptionsExercisedFromSharebasedPaymentsReserve
90 Share-based payment Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
91 Issuance of common shares – restricted share unit Concept (Monetary) For Period Credit mpvd:ValueOfSharesIssuedForVestingOfRestrictedSharesUnit
92 Issuance of common shares – restricted share unit (in Shares) Concept (Shares) For Period mpvd:NumberOfSharesIssuedForVestingOfRestrictedSharesUnit
93 Share issuance to acquire Kennady Diamonds Inc. Concept (Monetary) For Period Credit mpvd:ValueOfSharesIssuedThroughBusinessAcquisition
94 Share issuance to acquire Kennady Diamonds Inc. (in shares) Concept (Shares) For Period mpvd:NoOfSharesIssuedThroughBusinessAcquisition
95 Dividends declared and paid Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
96 Other Comprehensive Income: Abstract ifrs-full:OtherComprehensiveIncomeAbstract
97 Financial assets at fair value through other comprehensive income Abstract ifrs-full:FinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeAbstract
98 Gain on equity securities Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxChangeInFairValueOfFinancialLiabilityAttributableToChangeInCreditRiskOfLiability
99 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
100 Balance (in Shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
101 1005 - Statement - Consolidated Statements of Cash Flows Network

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102 Implied Table Table

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103 Statement of Cash Flows [Abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
104 Operating activities: Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
105 Net (loss) income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
106 Adjustments: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
107 Net financing expenses Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
108 Depreciation and depletion Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationExpense
109 Share-based payment expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
110 Derivative losses (gains) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
111 Foreign exchange losses (gains) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
112 Current income taxes Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
113 Deferred income taxes Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
114 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
115 Adjustments Concept (Monetary) For Period Debit mpvd:AdjustmentsToCashProvidedByUsedInOperatingActivities
116 Changes in non-cash operating working capital: Abstract mpvd:ChangesInNoncashWorkingCapitalBalancesRelatedToOperationsAbstract
117 Amounts receivable Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
118 Prepaid expenses and other Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
119 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
120 Accounts payable and accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAndOtherPayables
121 Cash flows from (used in) operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
122 Investing activities: Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
123 Restricted cash Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents
124 Pre-production sales capitalized Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOfExplorationAndEvaluationAssets
125 Interest income Concept (Monetary) For Period Debit ifrs-full:InterestReceivedClassifiedAsInvestingActivities
126 Capitalized interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsInvestingActivities
127 Purchase of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
128 Cash acquired and transaction costs on asset acquisition of Kennady Diamonds Inc. Concept (Monetary) For Period Debit mpvd:CashAcquiredAndTransactionCostOnBusinessAcquisition
129 Cash flows from (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
130 Financing activities: Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
131 Loan facility proceeds Concept (Monetary) For Period Debit ifrs-full:ProceedsFromBorrowingsClassifiedAsFinancingActivities
132 Repayment of loan facility Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities
133 Secured notes payable Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
134 Repurchase of secured notes Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
135 Financing costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForDebtIssueCosts
136 Payment of dividends Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
137 Proceeds from option exercises Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
138 Cash flows from (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
139 Effect of foreign exchange rate changes on cash Concept (Monetary) For Period Debit ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents
140 (Decrease) increase in cash Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
141 Cash, beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
142 Cash, end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
143 1006 - Disclosure - NATURE OF OPERATIONS Network

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145 NATURE OF OPERATIONS [Abstract] Abstract mpvd:NatureOfOperationsAbstract
146 Disclosure of going concern [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGoingConcernExplanatory
147 1007 - Disclosure - BASIS OF PRESENTATION Network

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149 Disclosure of basis of preparation [Abstract] Abstract mpvd:DisclosureOfBasisOfPreparationAbstract
150 Disclosure of basis of preparation of financial statements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
151 1008 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES Network

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154 Disclosure of significant accounting policies [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
155 1009 - Disclosure - SIGNIFICANT ACCOUNTING JUDGMENTS, ESTIMATES AND ASSUMPTIONS Network

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156 Implied Table Table

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158 Disclosure of accounting judgements and estimates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
159 1010 - Disclosure - AMOUNTS RECEIVABLE Network

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160 Implied Table Table

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161 Disclosure Of Amounts Receivable [Abstract] Abstract mpvd:DisclosureOfAmountsReceivableAbstract
162 Disclosure of trade and other receivables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
163 1011 - Disclosure - ACQUISITION OF KENNADY DIAMONDS INC. Network

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164 Implied Table Table

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165 Disclosure Of Business Combinations Abstract Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
166 Disclosure of detailed information about business combination [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
167 1012 - Disclosure - INVENTORIES Network

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168 Implied Table Table

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169 Disclosure Of Inventories Explanatory [Abstract] Abstract mpvd:DisclosureOfInventoriesExplanatoryAbstract
170 Disclosure of inventories [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
171 1013 - Disclosure - PROPERTY, PLANT AND EQUIPMENT Network

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172 Implied Table Table

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173 Disclosure of detailed information about property, plant and equipment [abstract] Abstract ifrs-full:DisclosureOfPropertyPlantAndEquipmentAbstract
174 Disclosure of property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
175 1014 - Disclosure - DECOMMISSIONING AND RESTORATION LIABILITY Network

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176 Implied Table Table

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177 Disclosure Of Decommissioning And Restoration Liability [Abstract] Abstract mpvd:DisclosureOfDecommissioningAndRestorationLiabilityAbstract
178 Disclosure of contingent liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfContingentLiabilitiesExplanatory
179 1015 - Disclosure - SECURED NOTES PAYABLE Network

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180 Implied Table Table

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181 Disclosure of secured notes payable [Abstract] Abstract mpvd:DisclosureOfSecuredNotesPayableAbstract
182 Disclosure of secured notes payable [text block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfSecuredNotesPayableTextBlock
183 1016 - Disclosure - NET FINANCE EXPENSES Network

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184 Implied Table Table

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186 Disclosure of finance income (cost) [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceIncomeExpenseExplanatory
187 1017 - Disclosure - SHAREHOLDERS' EQUITY Network

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188 Implied Table Table

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190 Disclosure of share-based payment arrangements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
191 1018 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES Network

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192 Implied Table Table

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194 Disclosure of general and administrative expense [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralAndAdministrativeExpenseExplanatory
195 1019 - Disclosure - DERIVATIVE ASSETS AND LIABILITIES Network

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198 Disclosure of derivative financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDerivativeFinancialInstrumentsExplanatory
199 1020 - Disclosure - FINANCIAL INSTRUMENTS Network

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202 Disclosure of financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
203 1021 - Disclosure - RELATED PARTIES Network

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207 1022 - Disclosure - INCOME TAXES Network

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208 Implied Table Table

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210 Disclosure of income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
211 1023 - Disclosure - CAPITAL MANAGEMENT Network

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215 1024 - Disclosure - SEGMENTED REPORTING Network

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218 Disclosure of entity's operating segments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
219 1025 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) Network

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223 Description of accounting policy for share-based payment transactions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
224 Description of accounting policy for income tax Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
225 Description of accounting policy for mining assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMiningAssetsExplanatory
226 Description of accounting policy for commencement of commercial production Concept (Text Block (HTML)) For Period mpvd:DescriptionOfAccountingPolicyForCommencementOfCommercialProductionTextBlock
227 Description of accounting policy for impairment of non-financial assets Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
228 Description of accounting policy for borrowing costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForBorrowingCostsExplanatory
229 Description of accounting policy for provisions Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
230 Description of accounting policy for earnings per share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
231 Description of accounting policy for recognition of revenue Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
232 Description of accounting policy for property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
233 Description of accounting policy for measuring inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
234 Description of accounting policy for stripping costs Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForStrippingCostsExplanatory
235 Disclosure of changes in accounting policies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesExplanatory
236 Description of accounting policy for standards and amendments to existing standards that are not yet effective and have not yet been adopted early by the company Concept (Text Block (HTML)) For Period mpvd:DescriptionOfAccountingPolicyForStandardsAndAmendmentsToExistingStandardsThatAreNotYetEffectiveAndHaveNotYetBeenAdoptedEarlyByCompanyTextBlock
237 1026 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Tables) Network

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240 Disclosure of detailed information about property, plant and equipment useful life [text block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentUsefulLifeTextBlock
241 1027 - Disclosure - AMOUNTS RECEIVABLE (Tables) Network

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245 1028 - Disclosure - ACQUISITION OF KENNADY DIAMONDS INC. (Tables) Network

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248 Disclosure Of Detailed Information About Purchase Price Allocation and Net Assets Acquired [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutPurchasePriceAllocationAndNetAssetsAcquiredTableTextBlock
249 1029 - Disclosure - INVENTORIES (Tables) Network

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253 1030 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) Network

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257 1031 - Disclosure - DECOMMISSIONING AND RESTORATION LIABILITY (Tables) Network

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259 Disclosure Of Decommissioning And Restoration Liability [Abstract] Abstract mpvd:DisclosureOfDecommissioningAndRestorationLiabilityAbstract
260 Disclosure of detailed information about decommissioning and restoration liability assumptions [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutDecommissioningAndRestorationLiabilityAssumptionsTextBlock
261 Disclosure of detailed information about decommissioning and restoration liability activity [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutDecommissioningAndRestorationLiabilityActivityTextBlock
262 1032 - Disclosure - SECURED NOTES PAYABLE (Tables) Network

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263 Implied Table Table

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264 Disclosure of secured notes payable [Abstract] Abstract mpvd:DisclosureOfSecuredNotesPayableAbstract
265 Disclosure of detailed information about secured notes [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutSecuredNotesTextBlock
266 1033 - Disclosure - NET FINANCE EXPENSES (Tables) Network

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267 Implied Table Table

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268 Disclosure Of Net Finance Income Expense Explanatory [Abstract] Abstract mpvd:DisclosureOfNetFinanceIncomeExpenseExplanatoryAbstract
269 Disclosure of detailed information about finance income expenses [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutFinanceIncomeExpensesTextBlock
270 1034 - Disclosure - SHAREHOLDERS' EQUITY (Tables) Network

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271 Disclosure of Shareholder's Equity [Table] Table

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272 Valuation techniques used in fair value measurement [axis] Axis ifrs-full:ValuationTechniquesUsedInFairValueMeasurementAxis
273 Valuation techniques [member] Member ifrs-full:ValuationTechniquesMember
274 Black scholes [Member] Member mpvd:BlackScholeMember
275 Disclosure of Shareholder's Equity [Line Items] LineItems mpvd:DisclosureOfShareholdersEquityLineItems
276 Disclosure of number and weighted average exercise prices of share options [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
277 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
278 Disclosure of number and weighted average exercise prices of other equity instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
279 Explanation of effect of share-based payments on entity's profit or loss [text block] Concept (Text Block (HTML)) For Period ifrs-full:ExplanationOfEffectOfSharebasedPaymentsOnProfitOrLoss
280 Earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
281 1035 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Tables) Network

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282 Implied Table Table

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283 Disclosure of Selling, General And Administrative Expense [Abstract] Abstract mpvd:DisclosureOfSellingGeneralAndAdministrativeExpenseAbstract
284 Disclosure of detailed information about Selling, general and administrative expense [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutSellingGeneralAndAdministrativeExpenseTextBlock
285 1036 - Disclosure - DERIVATIVE ASSETS AND LIABILITIES (Tables) Network

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286 Implied Table Table

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287 Disclosure of Derivative Liabilities [Abstract] Abstract mpvd:DisclosureOfDerivativeLiabilitiesAbstract
288 Disclosure And Detailed Information About Currency Contracts Outstanding [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureAndDetailedInformationAboutCurrencyContractsOutstandingTableTextBlock
289 Disclosure of information about amounts that affected statement of comprehensive income as result of hedge accounting [Text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutAmountsThatAffectedStatementOfComprehensiveIncomeAsResultOfHedgeAccountingExplanatory
290 1037 - Disclosure - FINANCIAL INSTRUMENTS (Tables) Network

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291 Implied Table Table

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292 Disclosure of detailed information about financial instruments [abstract] Abstract ifrs-full:DisclosureOfFinancialInstrumentsAbstract
293 Disclosure of detailed information about financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutFinancialInstrumentsExplanatory
294 Disclosure of detailed information about financial liabilities and capital commitments including contractual obligations [text block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutFinancialLiabilitiesAndCapitalCommitmentsIncludingContractualObligationsTextBlock
295 Disclosure of detailed information about net assets (liabilities) [text block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutNetAssetsLiabilitiesTextBlock
296 1038 - Disclosure - RELATED PARTIES (Tables) Network

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297 Implied Table Table

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298 Disclosure Of Related Party [Abstract] Abstract mpvd:DisclosureOfRelatedPartyAbstract
299 Disclosure of detailed information about related parties outstanding balances [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutRelatedPartiesOutstandingBalancesTextBlock
300 Disclosure of transactions between related parties [Text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory
301 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
302 1039 - Disclosure - INCOME TAXES (Tables) Network

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303 Implied Table Table

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304 Disclosure Of Income Tax [Abstract] Abstract mpvd:DisclosureOfIncomeTaxAbstract
305 Disclosure of detailed information about income tax reconciliation [text block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutIncomeTaxReconciliationTextBlock
306 Disclosure of deferred taxes [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDeferredTaxesExplanatory
307 Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
308 1040 - Disclosure - CAPITAL MANAGEMENT (Tables) Network

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309 Implied Table Table

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310 Disclosure of objectives, policies and processes for managing capital [abstract] Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
311 Disclosure of detailed information about capital management [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureOfDetailedInformationAboutCapitalManagementTextBlock
312 1041 - Disclosure - SEGMENTED REPORTING (Tables) Network

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313 Implied Table Table

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314 Disclosure of Segmented Reporting [Abstract] Abstract mpvd:DisclosureOfSegmentedReportingAbstract
315 Disclosure And Detailed Information About Revenue From Segments [Text Block] Concept (Text Block (HTML)) For Period mpvd:DisclosureAndDetailedInformationAboutRevenueFromSegmentsTextBlock
316 1042 - Disclosure - NATURE OF OPERATIONS (Details Textual) Network

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317 Disclosure Of Nature of Operations and going concern [Table] Table

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 mpvd:DisclosureOfNatureOfOperationsAndGoingConcernTable
318 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
319 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
320 Gahcho Kué Diamond Mine [Member] Member mpvd:GahchoKueDiamondMineMember
321 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
322 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
323 Kennady North Project [Member] Member mpvd:KennadyNorthProjectMember
324 Disclosure Of Nature of Operations and going concern [Line Items] LineItems mpvd:DisclosureOfNatureOfOperationsAndGoingConcernLineItems
325 Proportion of ownership interests held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
326 Proportion of ownership interest in joint operation Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
327 1043 - Disclosure - BASIS OF PRESENTATION (Details Textual) Network

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328 Disclosure of basis of preparation [Table] Table

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329 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
330 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
331 Ontario Inc. 2435572 [Member] Member mpvd:OntarioInc2435572Member
332 Ontario Inc 2435386 [Member] Member mpvd:OntarioInc2435386Member
333 Kennady Diamonds Inc [Member] Member mpvd:KennadyDiamondsIncMember
334 Disclosure of basis of preparation [Line Items] LineItems mpvd:DisclosureOfBasisOfPreparationLineItems
335 Proportion of ownership interest in subsidiary Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInSubsidiary
336 1044 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details) Network

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337 Disclosure Of Significant Accounting Policies [Table] Table

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338 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
339 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
340 Corporate assets [Member] Member mpvd:CorporateAssetsMember
341 Vehicles [Member] Member ifrs-full:VehiclesMember
342 Production and related equipment [Member] Member mpvd:ProductionAndRelatedEquipmentMember
343 General infrastructure [Member] Member mpvd:GeneralInfrastructureMember
344 Earthmoving equipment [Member] Member mpvd:EarthmovingEquipmentMember
345 Assets under construction [Member] Member ifrs-full:ConstructionInProgressMember
346 Mineral properties [Member] Member mpvd:MineralPropertiesMember
347 Disclosure Of Significant Accounting Policies [Line Items] LineItems mpvd:DisclosureOfSignificantAccountingPoliciesLineItems
348 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
349 1045 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details Textual) Network

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350 Disclosure Of Significant Accounting Policies [Table] Table

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351 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
352 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
353 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
354 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
355 De Beers [Member] Member mpvd:DeBeersMember
356 Disclosure Of Significant Accounting Policies [Line Items] LineItems mpvd:DisclosureOfSignificantAccountingPoliciesLineItems
357 Percentage Of Plant Capacity Concept (Percent) As Of mpvd:PercentageOfPlantCapacity
358 Percentage Of Bid Amount to be included in inventory Concept (Percent) For Period mpvd:PercentageOfBidAmountToBeIncludedInIventory
359 Percentage Of Bid price As Revenue Concept (Percent) For Period mpvd:PercentageOfBidPriceAsRevenue
360 1046 - Disclosure - AMOUNTS RECEIVABLE (Details) Network

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361 Implied Table Table

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362 Disclosure Of Amounts Receivable [Abstract] Abstract mpvd:DisclosureOfAmountsReceivableAbstract
363 Current trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
364 GST/HST receivable Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
365 Other receivable Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
366 Total Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
367 1047 - Disclosure - ACQUISITION OF KENNADY DIAMONDS INC. (Details) Network

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368 Disclosure of detailed information about business combination [table] Table

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 ifrs-full:DisclosureOfBusinessCombinationsTable
369 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
370 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
371 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
372 Purchase price: Abstract ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferredAbstract
373 Common shares issued Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
374 Purchase of equity securities prior to April 13, 2018 Concept (Monetary) For Period Credit ifrs-full:PurchaseOfInterestsInAssociates
375 Company transaction costs Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
376 Total Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
377 Net assets acquired: Abstract ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
378 Assets Abstract mpvd:BusinessCombinationAcquisitionOfAssetsAbstract
379 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
380 Amounts receivable Concept (Monetary) As Of Debit mpvd:ReceivablesAsOnAcquisitionDate
381 Prepaid expenses Concept (Monetary) As Of Debit mpvd:PrepaidExpensesAsOnAcquisitionDate
382 Reclamation deposit Concept (Monetary) As Of Debit mpvd:ReclamationDepositAsOnAcquisitionDate
383 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssetsRecognisedAsOfAcquisitionDate
384 Liabilities Abstract mpvd:BusinessCombinationAssumesLiabilitiesAbstract
385 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit mpvd:AccountsPayableAndAccuredLiabilitiesRecognisedAsOnAcquisitionDate
386 Decommissioning and restoration liability Concept (Monetary) As Of Credit mpvd:DecommissioningAndRestorationLiabilityRecognisedAsOnAcquisitionDate
387 Total Concept (Monetary) As Of Debit mpvd:NetAssetsAcquired
388 1048 - Disclosure - ACQUISITION OF KENNADY DIAMONDS INC. (Details Textual) Network

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389 Implied Table Table

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390 Disclosure Of Business Combinations Abstract Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
391 Stock Exchange Ratio Concept (Pure) For Period mpvd:StockExchangeRatio
392 No Of Shares Acquired Through Private Placement Concept (Shares) For Period mpvd:NoOfSharesAcquiredThroughPrivatePlacement
393 No Of Shares Issued Through Business Acquisition Concept (Shares) For Period mpvd:NoOfSharesIssuedThroughBusinessAcquisition
394 No Of Shares Acquired Through Business Acquisition Concept (Shares) For Period mpvd:NoOfSharesAcquiredThroughBusinessAcquisition
395 Other comprehensive income, net of tax, financial assets measured at fair value through other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
396 Other comprehensive income Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
397 1049 - Disclosure - INVENTORIES (Details) Network

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398 Implied Table Table

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399 Disclosure Of Inventories Explanatory [Abstract] Abstract mpvd:DisclosureOfInventoriesExplanatoryAbstract
400 Ore stockpile Concept (Monetary) As Of Debit ifrs-full:CurrentOreStockpiles
401 Rough diamonds Concept (Monetary) As Of Debit mpvd:CurrentRoughDiamonds
402 Supplies inventory Concept (Monetary) As Of Debit ifrs-full:ProductionSupplies
403 Total Concept (Monetary) As Of Debit ifrs-full:Inventories
404 1050 - Disclosure - INVENTORIES (Details Textual) Network

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405 Implied Table Table

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406 Disclosure Of Inventories Explanatory [Abstract] Abstract mpvd:DisclosureOfInventoriesExplanatoryAbstract
407 Depreciation and depletion included in inventories Concept (Monetary) For Period Debit mpvd:DepreciationAndDepletionIncludedInInventories
408 Employee benefits expense Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
409 Percentage of payroll and employee benefits included in production costs Concept (Percent) For Period mpvd:PercentageOfPayrollAndEmployeeBenefitsIncludedInProductionCosts
410 1051 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details) Network

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

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
412 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
413 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
414 Assets under construction [Member] Member ifrs-full:ConstructionInProgressMember
415 Property, plant and equipment [Member] Member ifrs-full:OtherPropertyPlantAndEquipmentMember
416 Mining assets [member] Member ifrs-full:MiningAssetsMember
417 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
418 Carrying amount [member] Member ifrs-full:CarryingAmountMember
419 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
420 Accumulated depreciation, amortisation and impairment [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
421 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
422 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
423 Kennady North Project [Member] Member mpvd:KennadyNorthProjectMember
424 Gahcho Kue Diamond Mine [Member] Member mpvd:GahchoKueDiamondMineMember
425 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
426 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
427 Decommissioning and restoration adjustment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
428 Increase Decrease In Additions and Transfer Other Than Through Business Combinations Property Plant And Equipment Concept (Monetary) For Period Debit mpvd:IncreaseDecreaseInAdditionsAndTransferOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
429 Depreciation and depletion Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
430 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
431 1052 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details Textual) Network

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

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433 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
434 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
435 Kennady North Project [Member] Member mpvd:KennadyNorthProjectMember
436 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
437 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
438 Range [Axis] Axis ifrs-full:RangeAxis
439 Ranges [member] Member ifrs-full:RangesMember
440 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
441 Borrowing costs capitalised Concept (Monetary) For Period ifrs-full:BorrowingCostsCapitalised
442 Proceeds from pre-production sales Concept (Monetary) For Period Debit mpvd:ProceedsFromPreproductionSales
443 Proportion of ownership interest in joint operation Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestInJointOperation
444 Acquisitions through business combinations, property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment
445 1053 - Disclosure - DECOMMISSIONING AND RESTORATION LIABILITY (Details) Network

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446 Decommissioning And Restoration Liability [Table] Table

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447 Classes of other provisions [axis] Axis ifrs-full:ClassesOfProvisionsAxis
448 Other provisions [member] Member ifrs-full:OtherProvisionsMember
449 Provision for decommissioning, restoration and rehabilitation costs [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
450 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
451 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
452 KNP [Member] Member mpvd:KennadyNorthProjectMember
453 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
454 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
455 GK Mine [Member] Member mpvd:GahchoKueDiamondMineMember
456 Decommissioning And Restoration Liability [Line Items] LineItems mpvd:DecommissioningAndRestorationLiabilityLineItems
457 Expected undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:NonderivativeFinancialLiabilitiesUndiscountedCashFlows
458 Discount rate Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesAppliedToCashFlowProjections
459 Inflation rate Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation
460 Periods Concept (Text/String) For Period ifrs-full:DescriptionOfPeriodsWhenCashFlowsExpectedToOccur
461 1054 - Disclosure - DECOMMISSIONING AND RESTORATION LIABILITY (Details 1) Network

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462 Decommissioning And Restoration Liability [Table] Table

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463 Joint ventures [axis] Axis ifrs-full:JointVenturesAxis
464 Entity's total for joint ventures [member] Member ifrs-full:EntitysTotalForJointVenturesMember
465 KNP [Member] Member mpvd:KennadyNorthProjectMember
466 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
467 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
468 GK Mine [Member] Member mpvd:GahchoKueDiamondMineMember
469 Decommissioning And Restoration Liability [Line Items] LineItems mpvd:DecommissioningAndRestorationLiabilityLineItems
470 Balance, beginning of year Concept (Monetary) As Of Credit ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts
471 Addition of balance at the time of KDI acquisition (Note 6) Concept (Monetary) For Period Credit mpvd:AdditionalProvisionLongTermProvisionForDecommissioningRestorationAndRehabilitationCostsAtTheTimeOfAcuqisition
472 Change in estimate of discounted cash flows Concept (Monetary) For Period Credit mpvd:IncreaseDecreaseInDiscountedCashFlowsOfDecommissioningRestorationAndRehabilitationProvision
473 Accretion recorded during the year Concept (Monetary) For Period Credit mpvd:AdditionalProvisionLongTermProvisionForDecommissioningRestorationAndRehabilitationCosts
474 Balance, end of the year Concept (Monetary) As Of Credit ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts
475 1055 - Disclosure - DECOMMISSIONING AND RESTORATION LIABILITY (Details Textual) Network

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476 Statement [Table] Table

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 us-gaap:StatementTable
477 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
478 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
479 Statement [Line Items] LineItems us-gaap:StatementLineItems
480 Increase decrease in discounted cash flows of decommissioning restoration and rehabilitation provision Concept (Monetary) For Period Credit mpvd:IncreaseDecreaseInDiscountedCashFlowsOfDecommissioningRestorationAndRehabilitationProvision
481 1056 - Disclosure - SECURED NOTES PAYABLE (Details) Network

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482 Disclosure of secured notes payable [Table] Table

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483 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
484 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
485 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
486 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
487 Senior secured notes [Member] Member mpvd:SeniorSecuredNotesMember
488 Disclosure of secured notes payable [Line Items] LineItems mpvd:DisclosureOfSecuredNotesPayableLineItems
489 Total outstanding secured notes payable Concept (Monetary) As Of ifrs-full:NotionalAmount
490 Less: unamortized deferred transaction costs and issuance discount Concept (Monetary) As Of Debit mpvd:UnamortizedTransactionCosts
491 Total secured notes payable Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
492 1057 - Disclosure - SECURED NOTES PAYABLE (Details Textual) Network

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493 Disclosure of secured notes payable [Table] Table

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494 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
495 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
496 Senior secured notes [Member] Member mpvd:SeniorSecuredNotesMember
497 Revolving Credit Facility1 [Member] Member mpvd:RevolvingCreditFacility1Member
498 Classes of financial ratio [Axis] Axis mpvd:ClassesOfFinancialRatioAxis
499 Classes of financial ratio [Domain] Member mpvd:ClassesOfFinancialRatioDomain
500 Leverage ratio [Member] Member mpvd:LeverageRatioMember
501 EBITDA to interest expense ratio [Member] Member mpvd:EbitdaToInterestExpenseRatioMember
502 Tangible net worth ratio [Member] Member mpvd:TangibleNetWorthRatioMember
503 Range [Axis] Axis ifrs-full:RangeAxis
504 Ranges [member] Member ifrs-full:RangesMember
505 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
506 Top of range [member] Member ifrs-full:TopOfRangeMember
507 Disclosure of secured notes payable [Line Items] LineItems mpvd:DisclosureOfSecuredNotesPayableLineItems
508 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
509 Par value percentage Concept (Percent) As Of mpvd:ParValuePercentage
510 Proceeds from issue of bonds, notes and debentures Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssueOfBondsNotesAndDebentures
511 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
512 Borrowing costs incurred Concept (Monetary) For Period ifrs-full:BorrowingCostsIncurred
513 Borrowings, maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
514 Undrawn borrowing facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
515 Percentage of commitment fee Concept (Percent) For Period mpvd:PercentageOfCommitmentFee
516 Description of range of percentages of commitment fee payable on credit facilities Concept (Text/String) For Period mpvd:DescriptionOfRangeOfPercentagesOfCommitmentFeePayableOnCreditFacilities
517 Description of range of percentages of commitment fee payable on drawn credit facilities Concept (Text/String) For Period mpvd:DescriptionOfRangeOfPercentagesOfCommitmentFeePayableOnDrawnCreditFacilities
518 Description of financial ratios Concept (Text/String) For Period mpvd:DescriptionOfFinancialRatios
519 Borrowings, interest rate basis Concept (Text/String) For Period ifrs-full:BorrowingsInterestRateBasis
520 Borrowings, adjustment to interest rate basis Concept (Percent) As Of ifrs-full:BorrowingsAdjustmentToInterestRateBasis
521 Information about restrictions or covenants imposed debt agreement Concept (Text/String) For Period mpvd:InformationAboutRestrictionsOrCovenantsImposedDebtAgreement
522 Repayments of bonds, notes and debentures Concept (Monetary) For Period Credit ifrs-full:RepaymentsOfBondsNotesAndDebentures
523 Reverse repurchase agreements and cash collateral on securities borrowed Concept (Monetary) As Of Debit ifrs-full:ReverseRepurchaseAgreementsAndCashCollateralOnSecuritiesBorrowed
524 1058 - Disclosure - NET FINANCE EXPENSES (Details) Network

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 http://www.mountainprovince.com/role/NetFinanceExpensesDetails
525 Implied Table Table

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*

 implied:Table
526 Disclosure Of Net Finance Income Expense Explanatory [Abstract] Abstract mpvd:DisclosureOfNetFinanceIncomeExpenseExplanatoryAbstract
527 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
528 Accretion expense on decommissioning and restoration liability Concept (Monetary) For Period Debit mpvd:AccretionExpenseOnDecommissioningAndRestorationLiability
529 Interest expense Concept (Monetary) For Period Debit ifrs-full:InterestExpense
530 Amortization of deferred financing costs Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForFinanceCosts
531 Other finance costs Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
532 Finance income (expense) Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
533 1059 - Disclosure - SHAREHOLDERS' EQUITY (Details) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetails
534 Implied Table Table

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*

 implied:Table
535 Disclosure of Shareholder's Equity [Abstract] Abstract mpvd:DisclosureOfShareholdersEquityAbstract
536 Number of options, Balance at beginning of year Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
537 Number of options, Granted during the year Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
538 Number of options, Exercised during the year Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
539 Number of options, Expired during the year Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
540 Number of options, Balance at end of the year Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
541 Number of options, Options exercisable at the end of the year Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
542 Weighted average exercise price, Balance at beginning of year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
543 Weighted average exercise price, Granted during the year Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
544 Weighted average exercise price, Exercised during the year Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
545 Weighted average exercise price, Expired during the year Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
546 Weighted average exercise price, Balance at end of the year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
547 Weighted average exercise price, Options exercisable at the end of the year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
548 1060 - Disclosure - SHAREHOLDERS' EQUITY (Details 1) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetails1
549 Disclosure of Shareholder's Equity [Table] Table

*

*

 mpvd:DisclosureOfShareholdersEquityTable
550 Range [Axis] Axis ifrs-full:RangeAxis
551 Ranges [member] Member ifrs-full:RangesMember
552 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
553 Top of range [member] Member ifrs-full:TopOfRangeMember
554 Disclosure of Shareholder's Equity [Line Items] LineItems mpvd:DisclosureOfShareholdersEquityLineItems
555 Exercise price Concept (Monetary) For Period ifrs-full:ExercisePriceShareOptionsGranted
556 Expected volatility Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
557 Expected option life (in years) Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
558 Contractual option life (in years) Concept (Decimal) For Period mpvd:DescriptionOfContractualOptionLifeShareOptionsGranted
559 Expected dividend yield Concept (Percent) For Period ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted
560 Risk-free interest rate Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
561 1061 - Disclosure - SHAREHOLDERS' EQUITY (Details 2) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetails2
562 Disclosure of Shareholder's Equity [Table] Table

*

*

 mpvd:DisclosureOfShareholdersEquityTable
563 Valuation techniques used in fair value measurement [axis] Axis ifrs-full:ValuationTechniquesUsedInFairValueMeasurementAxis
564 Valuation techniques [member] Member ifrs-full:ValuationTechniquesMember
565 Black scholes [Member] Member mpvd:BlackScholesMember
566 Expiry Date [Axis] Axis mpvd:ExpiryDateAxis
567 Expiry Date [Domain] Member mpvd:ExpiryDateDomain
568 February 13, 2019 Member mpvd:ThirteenFebruary2019Member
569 April 13, 2020 Member mpvd:ThirteenApril2020Member
570 October 14, 2020 Member mpvd:FourteenOctober2020Member
571 December 10, 2020 Member mpvd:TenthDecember2020Member
572 June 30, 2021 Member mpvd:ThirtyJune2021Member
573 November 3, 2021 Member mpvd:ThirdNovember2021Member
574 February 5, 2022 Member mpvd:FiveFebruary2022Member
575 December 21, 2022 Member mpvd:TwentyOneDecember2022Member
576 June 30, 2023 Member mpvd:ThirtyJune20231Member
577 June 30, 2023 Member mpvd:ThirtyJune20232Member
578 Disclosure of Shareholder's Equity [Line Items] LineItems mpvd:DisclosureOfShareholdersEquityLineItems
579 Weighted average fair value at measurement date, share options granted Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
580 Number of share options outstanding in share-based payment arrangement Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
581 Number of share options exercisable in share-based payment arrangement Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
582 Weighted average exercise price of share options outstanding in share-based payment arrangement Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
583 1062 - Disclosure - SHAREHOLDERS' EQUITY (Details 3) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetails3
584 Disclosure of Shareholder's Equity [Table] Table

*

*

 mpvd:DisclosureOfShareholdersEquityTable
585 Classes of entity's own equity instruments [axis] Axis ifrs-full:ClassesOfEntitysOwnEquityInstrumentsAxis
586 Entity's own equity instruments [member] Member ifrs-full:EntitysOwnEquityInstrumentsMember
587 Restricted Stock Units (RSUs) [Member] Member mpvd:RestrictedStockUnitsMember
588 Disclosure of Shareholder's Equity [Line Items] LineItems mpvd:DisclosureOfShareholdersEquityLineItems
589 Number of units Balance at beginning of year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
590 Number of units RSUs awarded Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
591 Number of units RSUs settled and common shares issued Concept (Decimal) For Period mpvd:NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
592 Number of units RSUs forfeited Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
593 Number of units Balance at Ending of year Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
594 Weighted average value Balance at beginning of year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
595 Weighted average value RSUs awarded Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement
596 Weighted average RSUs settled and common shares issued Concept (Monetary) For Period Credit mpvd:WeightedAverageExercisePriceOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement
597 Weighted average value RSUs forfeited Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
598 Weighted average value Balance at Ending of year Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
599 1063 - Disclosure - SHAREHOLDERS' EQUITY (Details 4) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetails4
600 Implied Table Table

*

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 implied:Table
601 Disclosure of Shareholder's Equity [Abstract] Abstract mpvd:DisclosureOfShareholdersEquityAbstract
602 Expense recognized in the year for share-based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
603 1064 - Disclosure - SHAREHOLDERS' EQUITY (Details 5) Network

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*

 http://www.mountainprovince.com/role/ShareholdersEquityDetails5
604 Implied Table Table

*

*

 implied:Table
605 Disclosure of Shareholder's Equity [Abstract] Abstract mpvd:DisclosureOfShareholdersEquityAbstract
606 Numerator Abstract ifrs-full:ProfitLossAbstract
607 Net (loss) income for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
608 Denominator Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
609 For basic - weighted average number of shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
610 Effect of dilutive securities Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
611 For diluted - adjusted weighted average number of shares outstanding Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
612 (Loss) Earnings Per Share Abstract ifrs-full:EarningsPerShareAbstract
613 Basic Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
614 Diluted Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
615 1065 - Disclosure - SHAREHOLDERS' EQUITY (Details Textual) Network

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 http://www.mountainprovince.com/role/ShareholdersEquityDetailsTextual
616 Disclosure of Shareholder's Equity [Table] Table

*

*

 mpvd:DisclosureOfShareholdersEquityTable
617 Type Of Plan [Axis] Axis mpvd:TypeOfPlanAxis
618 Type Of Plan [Domain] Member mpvd:TypeOfPlanDomain
619 Long-Term Equity Incentive Plan [Member] Member mpvd:LongtermEquityIncentivePlanMember
620 Range [Axis] Axis ifrs-full:RangeAxis
621 Ranges [member] Member ifrs-full:RangesMember
622 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
623 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
624 Subsequent Events [Member] Member mpvd:SubsequentEventsMember
625 Ranges of exercise prices for outstanding share options [axis] Axis ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis
626 Ranges of exercise prices for outstanding share options [member] Member ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember
627 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
628 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
629 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
630 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
631 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
632 Equity [Member] Member ifrs-full:EquityMember
633 Share capital Member ifrs-full:IssuedCapitalMember
634 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
635 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
636 Option Contract one [Member] Member mpvd:OptionContractOneMember
637 Classes of entity's own equity instruments [axis] Axis ifrs-full:ClassesOfEntitysOwnEquityInstrumentsAxis
638 Entity's own equity instruments [member] Member ifrs-full:EntitysOwnEquityInstrumentsMember
639 Restricted Stock Units [Member] Member mpvd:RestrictedStockUnitsMember
640 Disclosure of Shareholder's Equity [Line Items] LineItems mpvd:DisclosureOfShareholdersEquityLineItems
641 Number of shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
642 Number of share options exercised in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
643 Percentage of shares reserved for issue under options and contracts for sale of shares Concept (Percent) As Of mpvd:PercentageOfSharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
644 Number of instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsGrantedInSharebasedPaymentArrangement
645 Number of shares reserved for issue under options and contracts for sale of shares Concept (Shares) As Of ifrs-full:SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
646 Increase (decrease) through exercise of options, equity Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
647 Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise
648 Weighted average remaining contractual life of outstanding share options (in years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
649 Number of share options granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
650 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
651 Options With Potential Future Dilutive Effect Not Included In Calculation Of Diluted Earnings Per Share Concept (Shares) For Period mpvd:OptionsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShare
652 No Of Shares Issued Through Business Acquisition Concept (Shares) For Period mpvd:NoOfSharesIssuedThroughBusinessAcquisition
653 Dividend Per Share Concept (Share) For Period mpvd:DividendPerShare
654 Dividends declared and paid Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
655 Restricted Stock Units With Potential Future Dilutive Effect Not Included In Calculation Of Diluted Earnings Per Share Concept (Shares) For Period mpvd:RestrictedStockUnitsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShare
656 Number of share options expired in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
657 Weighted average exercise price of share options expired in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
658 Number of other equity instruments exercised or vested in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
659 Weighted average exercise price of other equity instruments exercised or vested in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
660 1066 - Disclosure - SELLING, GENERAL AND ADMINISTRATIVE EXPENSES (Details) Network

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 http://www.mountainprovince.com/role/SellingGeneralAndAdministrativeExpensesDetails
661 Implied Table Table

*

*

 implied:Table
662 Disclosure of Selling, General And Administrative Expense [Abstract] Abstract mpvd:DisclosureOfSellingGeneralAndAdministrativeExpenseAbstract
663 Selling and marketing Concept (Monetary) For Period Debit ifrs-full:SalesAndMarketingExpense
664 General and administrative: Abstract ifrs-full:SellingGeneralAndAdministrativeExpenseAbstract
665 Consulting fees and payroll Concept (Monetary) For Period Debit mpvd:ConsultingFeesAndPayrollExpenses
666 Share-based payment expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
667 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
668 Office and administration Concept (Monetary) For Period Debit ifrs-full:AdministrativeExpense
669 Professional fees Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
670 Promotion and investor relations Concept (Monetary) For Period Debit mpvd:PromotionAndInvestorRelations
671 Director fees Concept (Monetary) For Period Debit ifrs-full:DirectorsRemunerationExpense
672 Transfer agent and regulatory fees Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
673 Travel Concept (Monetary) For Period Debit ifrs-full:TravelExpense
674 Selling, General and Administrative Expense Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
675 1067 - Disclosure - DERIVATIVE ASSETS AND LIABILITIES (Details) Network

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 http://www.mountainprovince.com/role/DerivativeAssetsAndLiabilitiesDetails
676 DisclosureOfDerivativeLiabilities [Table] Table

*

*

 mpvd:DisclosureofderivativeliabilitiesTable
677 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
678 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
679 January To July Contract [Member] Member mpvd:JanuaryToJulyContractMember
680 Disclosure of Derivative Liabilities [Line Items] LineItems mpvd:DisclosureOfDerivativeLiabilitiesLineItems
681 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
682 Average foreign exchange rate Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
683 1068 - Disclosure - DERIVATIVE ASSETS AND LIABILITIES (Details 1) Network

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 http://www.mountainprovince.com/role/DerivativeAssetsAndLiabilitiesDetails1
684 DisclosureOfDerivativeLiabilities [Table] Table

*

*

 mpvd:DisclosureofderivativeliabilitiesTable
685 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
686 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
687 Currency Contracts [Member] Member mpvd:CurrencyContractsMember
688 Interest Rate Swap Contracts [Member] Member mpvd:InterestRateSwapContractsMember
689 Embedded Derivative [Member] Member mpvd:EmbeddedDerivativeMember
690 Disclosure of Derivative Liabilities [Line Items] LineItems mpvd:DisclosureOfDerivativeLiabilitiesLineItems
691 Gains on change in fair value of derivatives Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
692 1069 - Disclosure - DERIVATIVE ASSETS AND LIABILITIES (Details Textual) Network

*

*

 http://www.mountainprovince.com/role/DerivativeAssetsAndLiabilitiesDetailsTextual
693 DisclosureOfDerivativeLiabilities [Table] Table

*

*

 mpvd:DisclosureofderivativeliabilitiesTable
694 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
695 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
696 Foreign Currency Forward Strip Contracts [Member] Member mpvd:ForeignCurrencyForwardStripContractsMember
697 Embedded Derivative [Member] Member mpvd:EmbeddedDerivativeMember
698 Forward contract [member] Member ifrs-full:ForwardContractMember
699 April to October [Member] Member mpvd:AprilToOctoberMember
700 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
701 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
702 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
703 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
704 Subsequent Events [Member] Member mpvd:SubsequentEventsMember
705 Disclosure of Derivative Liabilities [Line Items] LineItems mpvd:DisclosureOfDerivativeLiabilitiesLineItems
706 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
707 Average foreign exchange rate Concept (Decimal) For Period ifrs-full:AverageForeignExchangeRate
708 Non-current derivative financial assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
709 Gains (losses) on change in fair value of derivatives Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
710 1070 - Disclosure - FINANCIAL INSTRUMENTS (Details) Network

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 http://www.mountainprovince.com/role/FinancialInstrumentsDetails
711 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
712 Levels of fair value hierarchy [axis] Axis ifrs-full:LevelsOfFairValueHierarchyAxis
713 All levels of fair value hierarchy [member] Member ifrs-full:AllLevelsOfFairValueHierarchyMember
714 Level 1 of fair value hierarchy [member] Member ifrs-full:Level1OfFairValueHierarchyMember
715 Level 2 of fair value hierarchy [member] Member ifrs-full:Level2OfFairValueHierarchyMember
716 Level 3 of fair value hierarchy [member] Member ifrs-full:Level3OfFairValueHierarchyMember
717 Categories of financial assets [axis] Axis ifrs-full:CategoriesOfFinancialAssetsAxis
718 Financial assets, category [member] Member ifrs-full:FinancialAssetsCategoryMember
719 Financial assets at amortised cost, category [member] Member ifrs-full:FinancialAssetsAtAmortisedCostCategoryMember
720 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
721 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
722 Cash at fair falue [Member] Member mpvd:CashAtFairFalueMember
723 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
724 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
725 Financial liabilities at amortised cost, category [member] Member ifrs-full:FinancialLiabilitiesAtAmortisedCostCategoryMember
726 Categories of financial liabilities [axis] Axis ifrs-full:CategoriesOfFinancialLiabilitiesAxis
727 Financial liabilities, category [member] Member ifrs-full:FinancialLiabilitiesCategoryMember
728 Financial liabilities at fair value through profit or loss, category [member] Member ifrs-full:FinancialLiabilitiesAtFairValueThroughProfitOrLossCategoryMember
729 Financial assets at fair value through other comprehensive income, category [member] Member ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember
730 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
731 Financial assets designated as measured at fair value through profit or loss [Abstract] Abstract ifrs-full:FinancialAssetsDesignatedAsMeasuredAtFairValueAbstract
732 Derivative assets, at fair value Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
733 Financial assets classified as cash, amounts receivable and restricted cash, carrying amount Concept (Monetary) As Of Debit mpvd:FinancialAssetsClassifiedAsMeasuredCashAmountsReceivableAndRestrictedCashCarryingAmount
734 Financial assets designated as not measured at fair value [Abstract] Abstract mpvd:FinancialAssetsDesignatedAsNotMeasuredAtFairValueAbstract
735 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
736 Amounts receivable Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
737 Financial assets classified as cash, amounts receivable and restricted cash, carrying amount Concept (Monetary) As Of Debit mpvd:FinancialAssetsClassifiedAsCashamountsReceivableAndRestrictedCashCarryingAmount
738 Designated financial liabilities at fair value through profit or loss [Abstract] Abstract ifrs-full:DesignatedFinancialLiabilitiesAtFairValueThroughProfitOrLossAbstract
739 Derivative liabilities Concept (Monetary) As Of Credit ifrs-full:DerivativeFinancialLiabilities
740 Financial liabilities, at fair value Concept (Monetary) As Of Credit ifrs-full:FinancialLiabilitiesAtFairValue
741 Designated financial liabilities at not fair value through profit or loss [Abstract] Abstract mpvd:DesignatedFinancialLiabilitiesAtNotFairValueThroughProfitOrLossAbstract
742 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
743 Secured notes payable Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
744 Financial liabilities classified as derivative liabilities, accounts payable and accrued liabilities, carrying amount Concept (Monetary) As Of Credit mpvd:FinancialLiabilitiesClassifiedAsDerivativeLiabilitiesaccountsPayableAndAccruedLiabilitiesCarryingAmount
745 Maximum exposure to credit risk Concept (Monetary) As Of ifrs-full:MaximumExposureToCreditRisk
746 1071 - Disclosure - FINANCIAL INSTRUMENTS (Details 1) Network

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*

 http://www.mountainprovince.com/role/FinancialInstrumentsDetails1
747 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
748 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
749 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
750 Maturity [axis] Axis ifrs-full:MaturityAxis
751 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
752 Less than 1 Year Member ifrs-full:NotLaterThanOneYearMember
753 1 to 3 Years Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
754 4 to 5 Years Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
755 After 5 Years Member ifrs-full:LaterThanFiveYearsMember
756 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
757 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
758 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
759 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
760 Gahcho Kue Diamond Mine [Member] Member mpvd:GahchoKueDiamondMineMember
761 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
762 Operating lease obligations Concept (Monetary) As Of Credit ifrs-full:MinimumLeasePaymentsPayableUnderNoncancellableOperatingLease
763 Mine commitments Concept (Monetary) As Of Credit ifrs-full:CapitalCommitments
764 Revolving credit facility stand by charges Concept (Monetary) As Of Credit mpvd:RevolvingCreditFacilityChargesPayable
765 Notes payable - Principal Concept (Monetary) As Of Credit mpvd:PrincipalAmountOfNoteFacility
766 Notes payable - Interest Concept (Monetary) As Of Credit ifrs-full:InterestPayable
767 Forward Exchange Contracts: Abstract mpvd:ForwardExchangeContractsAbstract
768 Forward Exchange Contracts Inflows Concept (Monetary) As Of Debit mpvd:ForwardExchangeContractsInflows
769 Forward Exchange Contracts Outflows Concept (Monetary) As Of Credit mpvd:ForwardExchangeContractsOutflows
770 Total of financial liabilities, capital commitments including obligations Concept (Monetary) As Of Credit mpvd:TotalOfFinancialLiabilitiescapitalCommitmentsIncludingObligations
771 1072 - Disclosure - FINANCIAL INSTRUMENTS (Details 2) Network

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 http://www.mountainprovince.com/role/FinancialInstrumentsDetails2
772 Disclosure of detailed information about financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfFinancialInstrumentsTable
773 Currency [Axis] Axis mpvd:CurrencysAxis
774 Currency [Domain] Member mpvd:CurrencyDomain
775 Currency denominated by Canadian dollar [Member] Member mpvd:CurrencyDenominatedByCanadianDollarMember
776 Disclosure of detailed information about financial instruments [line items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
777 Cash Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
778 Derivative assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentDerivativeFinancialAssets
779 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
780 Derivative liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentDerivativeFinancialLiabilities
781 Secured notes payable Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
782 Total Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
783 1073 - Disclosure - FINANCIAL INSTRUMENTS (Details Textual) Network

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 http://www.mountainprovince.com/role/FinancialInstrumentsDetailsTextual
784 Disclosure of detailed information about financial instruments [table] Table

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 ifrs-full:DisclosureOfFinancialInstrumentsTable
785 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
786 Assets [member] Member ifrs-full:ClassesOfAssetsMember
787 Harmonized sales tax refunds [Member] Member mpvd:HarmonizedSalesTaxRefundsMember
788 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
789 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
790 Loan facility [Axis] Axis mpvd:LoanFacilityAxis
791 Loan facility [Domain] Member mpvd:LoanFacilityDomain
792 First lien revolving credit facility [Member] Member mpvd:FirstLienRevolvingCreditFacilityMember
793 Reclassified items [axis] Axis ifrs-full:ReclassifiedItemsAxis
794 Reclassified items [member] Member ifrs-full:ReclassifiedItemsMember
795 10% Change [Member] Member mpvd:TenPercentageChangeMember
796 Disclosure Of Financial Instruments [Line Items] LineItems ifrs-full:DisclosureOfFinancialInstrumentsLineItems
797 Trade and other current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
798 Increase (decrease) in net income Concept (Monetary) For Period Credit mpvd:IncreaseDecreaseInNetIncome
799 Undrawn borrowing facilities Concept (Monetary) As Of Credit ifrs-full:UndrawnBorrowingFacilities
800 Secured bank loans received Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
801 Percentage of entity's revenue Concept (Percent) For Period ifrs-full:PercentageOfEntitysRevenue
802 1074 - Disclosure - RELATED PARTIES (Details) Network

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 http://www.mountainprovince.com/role/RelatedPartiesDetails
803 Related Party [Table] Table

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 mpvd:RelatedPartyTable
804 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
805 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
806 Gk mine [Member] Member mpvd:GkMineMember
807 International investment and underwriting [Member] Member mpvd:InternationalInvestmentAndUnderwritingMember
808 Key management personnel of entity or parent [member] Member ifrs-full:KeyManagementPersonnelOfEntityOrParentMember
809 De Beers Canada [Member] Member mpvd:DeBeersCanadaMember
810 Related party [Line Items] LineItems mpvd:RelatedPartyLineItems
811 Amounts payable, related party transactions Concept (Monetary) As Of Credit ifrs-full:AmountsPayableRelatedPartyTransactions
812 Amounts receivable, related party transactions Concept (Monetary) As Of Debit ifrs-full:AmountsReceivableRelatedPartyTransactions
813 1075 - Disclosure - RELATED PARTIES (Details 1) Network

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 http://www.mountainprovince.com/role/RelatedPartiesDetails1
814 Related Party [Table] Table

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 mpvd:RelatedPartyTable
815 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
816 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
817 Kennady diamonds [Member] Member mpvd:KennadyDiamondsMember
818 International investment and underwriting [Member] Member mpvd:InternationalInvestmentAndUnderwritingMember
819 De beers canada inc [Member] Member mpvd:DeBeersCanadaIncMember
820 Gk mine [Member] Member mpvd:GkMineMember
821 De Beers Canada [Member] Member mpvd:DeBeersCanadaMember
822 Related party [Line Items] LineItems mpvd:RelatedPartyLineItems
823 The total of the transactions: Abstract ifrs-full:RelatedPartyTransactionsAbstract
824 Settlement of liabilities by entity on behalf of related party, related party transactions Concept (Monetary) For Period ifrs-full:SettlementOfLiabilitiesByEntityOnBehalfOfRelatedPartyRelatedPartyTransactions
825 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
826 Sunk cost repayment to De Beers Canada Inc. Concept (Monetary) For Period Debit mpvd:SunkCostIncurred
827 Diamonds sold to De Beers Canada Inc. Concept (Monetary) For Period Credit ifrs-full:RevenueFromSaleOfGoodsRelatedPartyTransactions
828 Diamonds purchased from De Beers Canada Inc. Concept (Monetary) For Period Debit ifrs-full:PurchasesOfGoodsRelatedPartyTransactions
829 Finance costs incurred from De Beers Canada Inc. Concept (Monetary) For Period Debit ifrs-full:OtherFinanceCost
830 Assets purchased from De Beers Canada Inc. Concept (Monetary) For Period Debit ifrs-full:PurchasesOfPropertyAndOtherAssetsRelatedPartyTransactions
831 1076 - Disclosure - RELATED PARTIES (Details 2) Network

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 http://www.mountainprovince.com/role/RelatedPartiesDetails2
832 Implied Table Table

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 implied:Table
833 Disclosure Of Related Party [Abstract] Abstract mpvd:DisclosureOfRelatedPartyAbstract
834 Consulting fees, payroll, director fees, bonus and other short-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
835 Share-based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
836 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
837 1077 - Disclosure - RELATED PARTIES (Details Textual) Network

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 http://www.mountainprovince.com/role/RelatedPartiesDetailsTextual
838 Related Party [Table] Table

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 mpvd:RelatedPartyTable
839 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
840 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
841 Gahcho Kue Diamond Mine [Member] Member mpvd:GahchoKueDiamondMineMember
842 Related party [Line Items] LineItems mpvd:RelatedPartyLineItems
843 Proportion of ownership interests held by non-controlling interests Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
844 Percentage of security deposit fee Concept (Percent) As Of mpvd:PercentageOfSecurityDepositFee
845 Long-term deposits Concept (Monetary) As Of Debit ifrs-full:LongtermDeposits
846 1078 - Disclosure - INCOME TAXES (Details) Network

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 http://www.mountainprovince.com/role/IncomeTaxesDetails
847 Implied Table Table

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 implied:Table
848 Disclosure Of Income Tax [Abstract] Abstract mpvd:DisclosureOfIncomeTaxAbstract
849 (Loss) income before income taxes Concept (Monetary) For Period Credit ifrs-full:AccountingProfit
850 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
851 Tax expense calculated using statutory rates Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
852 Expenses not deductible (earnings not taxable) Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
853 Change in tax benefits not recognized Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
854 Current And Deferred Mining Taxes Concept (Monetary) For Period Debit mpvd:CurrentAndDeferredMiningTaxes
855 Income tax expenses Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
856 Current income tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
857 Deferred tax expense Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
858 1079 - Disclosure - INCOME TAXES (Details 1) Network

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 http://www.mountainprovince.com/role/IncomeTaxesDetails1
859 Income Tax [Table] Table

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 mpvd:IncomeTaxTable
860 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
861 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
862 Non-capital loss carryforwards [Member] Member mpvd:NoncapitalLossCarryforwardsMember
863 Income Tax [Line Items] LineItems mpvd:IncomeTaxLineItems
864 Deferred tax liability Abstract ifrs-full:RegulatoryDeferralAccountCreditBalancesAndRelatedDeferredTaxLiabilityAbstract
865 Inventory Concept (Monetary) As Of Credit mpvd:DeferredTaxLiabilitiesRelatedToInventory
866 Property, plant & equipment Concept (Monetary) As Of Credit mpvd:DeferredTaxLiabilitiesRelatedToPropertyPlantAndEquipment
867 Non-capital loss carryforwards Concept (Monetary) As Of Credit mpvd:DeferredTaxLiabilitiesRelatedToDerivativeAssets
868 Deferred tax asset Abstract ifrs-full:RegulatoryDeferralAccountDebitBalancesAndRelatedDeferredTaxAssetAbstract
869 Non-capital loss carryforwards Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
870 Deferred tax (liability) asset Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
871 1080 - Disclosure - INCOME TAXES (Details 2) Network

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 http://www.mountainprovince.com/role/IncomeTaxesDetails2
872 Income Tax [Table] Table

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 mpvd:IncomeTaxTable
873 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
874 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
875 Property, plant and equipment [member] Member mpvd:TemporaryDifferencePropertyPlantAndEquipmentMember
876 Decommissioning and restoration liability [member] Member mpvd:TemporaryDifferenceDecommissioningAndRestorationMember
877 Loan facility and secured notes payable [member] Member mpvd:TemporaryDifferenceLoansReceivedMember
878 Share issuance cost [member] Member mpvd:TemporaryDifferenceShareAndDebtIssuanceCostMember
879 Non-capital losses, expiring 2034 to 2037 [member] Member mpvd:TemporaryDifferenceNonCapitalLossesMember
880 Capital losses [Member] Member mpvd:TemporaryDifferenceCapitalLossesMember
881 Income Tax [Line Items] LineItems mpvd:IncomeTaxLineItems
882 Deductible temporary differences for which no deferred tax asset is recognised Concept (Monetary) As Of ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
883 1081 - Disclosure - INCOME TAXES (Details Textual) Network

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 http://www.mountainprovince.com/role/IncomeTaxesDetailsTextual
884 Income Tax [Table] Table

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 mpvd:IncomeTaxTable
885 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
886 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
887 Northwest Territories Mining Royalty [Member] Member mpvd:TemporaryDifferenceNorthwestTerritoriesMiningRoyaltyMember
888 Income Tax [Line Items] LineItems mpvd:IncomeTaxLineItems
889 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
890 Deductible temporary differences for which no deferred tax asset is recognised Concept (Monetary) As Of ifrs-full:DeductibleTemporaryDifferencesForWhichNoDeferredTaxAssetIsRecognised
891 Income taxes paid (refund), classified as operating activities Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
892 Current tax liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentTaxLiabilities
893 1082 - Disclosure - CAPITAL MANAGEMENT (Details) Network

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 http://www.mountainprovince.com/role/CapitalManagementDetails
894 Implied Table Table

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 implied:Table
895 Disclosure of objectives, policies and processes for managing capital [abstract] Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
896 Secured notes payable Concept (Monetary) As Of Credit ifrs-full:SecuredBankLoansReceived
897 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
898 Share-based payments reserve Concept (Monetary) As Of Credit ifrs-full:ReserveOfSharebasedPayments
899 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
900 Shareholder equity and other equity interest Concept (Monetary) As Of Credit mpvd:ShareholderEquityAndOtherEquityInterest
901 1083 - Disclosure - CAPITAL MANAGEMENT (Details Textual) Network

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 http://www.mountainprovince.com/role/CapitalManagementDetailsTextual
902 Implied Table Table

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 implied:Table
903 Disclosure of objectives, policies and processes for managing capital [abstract] Abstract ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract
904 Information about restrictions or covenants imposed debt agreement Concept (Text/String) For Period mpvd:InformationAboutRestrictionsOrCovenantsImposedDebtAgreement
905 1084 - Disclosure - SEGMENTED REPORTING (Details) Network

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 http://www.mountainprovince.com/role/SegmentedReportingDetails
906 Statement [Table] Table

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 us-gaap:StatementTable
907 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
908 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
909 Segments [axis] Axis ifrs-full:SegmentsAxis
910 Segments [member] Member ifrs-full:SegmentsMember
911 Gk mine [Member] Member mpvd:GkMineMember
912 KNP [Member] Member mpvd:KNPMember
913 Statement [Line Items] LineItems us-gaap:StatementLineItems
914 Sales Concept (Monetary) For Period Credit ifrs-full:Revenue
915 Cost of sales: Abstract mpvd:CostOfSalesAbstract
916 Production costs Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
917 Cost of acquired diamonds Concept (Monetary) For Period Debit mpvd:CostOfAcquiredAsset
918 Depreciation and depletion Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
919 Earnings From Mine Operations Concept (Monetary) For Period Credit mpvd:EarningsFromMineOperations
920 Exploration and evaluation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
921 Selling, general and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
922 Operating income (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
923 Net finance (expenses) income Concept (Monetary) For Period Credit ifrs-full:FinanceIncomeCost
924 Derivative losses Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
925 Foreign exchange losses Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
926 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
927 Net loss before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
928 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
929 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities

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