ALEXCO RESOURCE CORP (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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2 Implied Table Table

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3 Document and Entity Information [Abstract] Abstract cik0001364128: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 Entity Common Stock, Shares Outstanding Concept (Shares) As Of dei:EntityCommonStockSharesOutstanding
14 Entity Emerging Growth Company Concept (Yes/No) For Period dei:EntityEmergingGrowthCompany
15 1002 - Statement - CONSOLIDATED BALANCE SHEETS Network

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16 Implied Table Table

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17 Statement of financial position [abstract] Abstract ifrs-full:StatementOfFinancialPositionAbstract
18 Current Assets Abstract ifrs-full:CurrentAssetsAbstract
19 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
20 Accounts and other receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
21 Restricted cash and deposits Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
22 Investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
23 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
24 Prepaid expenses and other Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
25 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
26 Non-Current Assets Abstract ifrs-full:NoncurrentAssetsAbstract
27 Restricted cash and deposits Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
28 Investments Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
29 Inventories Concept (Monetary) As Of Debit ifrs-full:NoncurrentInventories
30 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
31 Mineral properties Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentNonfinancialAssets
32 Embedded derivative asset Concept (Monetary) As Of Debit ifrs-full:DerivativeFinancialAssets
33 Intangible assets and other Concept (Monetary) As Of Debit ifrs-full:IntangibleAssetsOtherThanGoodwill
34 Total Assets Concept (Monetary) As Of Debit ifrs-full:Assets
35 LIABILITIES AND SHAREHOLDERS' EQUITY Abstract ifrs-full:EquityAndLiabilitiesAbstract
36 Current Liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
37 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
38 Environmental services contract loss provision Concept (Monetary) As Of Credit ifrs-full:OtherCurrentNonfinancialLiabilities
39 Deferred revenue Concept (Monetary) As Of Credit ifrs-full:OtherShorttermProvisions
40 Flow-through share premium pending renunciation Concept (Monetary) As Of Credit ifrs-full:OtherCurrentFinancialLiabilities
41 Current Liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
42 Non-Current Liabilities Abstract ifrs-full:NoncurrentLiabilitiesAbstract
43 Decommissioning and rehabilitation provision Concept (Monetary) As Of Credit ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCosts
44 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
45 Total Liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
46 Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:Equity
47 Total Liabilities and Shareholders' Equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
48 1003 - Statement - CONSOLIDATED STATEMENTS OF LOSS AND COMPREHENSIVE LOSS Network

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 http://www.alexcoresource.com/role/ConsolidatedStatementsOfLossAndComprehensiveLoss
49 Implied Table Table

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50 Income Statement [Abstract] Abstract ifrs-full:IncomeStatementAbstract
51 Revenues Abstract ifrs-full:RevenueAbstract
52 Environmental Services Revenue Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
53 Cost of Sales Abstract cik0001364128:CostOfSalesAbstract
54 Environmental Services Costs Concept (Monetary) For Period Debit ifrs-full:CostOfSales
55 Total Gross Profit Concept (Monetary) For Period Credit ifrs-full:GrossProfit
56 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
57 Mine site care and maintenance Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
58 Operating expense Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
59 Operating Loss Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
60 Other Income (Expenses) Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract
61 Other income and expenses Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
62 Gain (loss) on investments Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
63 Gain on embedded derivative Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives
64 Loss Before Taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
65 Income Tax Provision Abstract cik0001364128:IncomeTaxProvisionAbstract
66 Current Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
67 Deferred Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
68 Net Loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
69 Other Comprehensive Income (Loss) Abstract ifrs-full:OtherComprehensiveIncomeAbstract
70 Gain (loss) on FVTOCI investments, net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments
71 Items that may be reclassified subsequently to net loss Abstract cik0001364128:OtherComprehensiveIncomeReclassifiedSubsequentlyToNetIncomeLossAbstract
72 Cumulative translation adjustments, net of tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeNetOfTaxExchangeDifferencesOnTranslation
73 Recycle of loss on previously recorded available-for-sale to income, net of tax Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnAvailableforsaleFinancialAssetsNetOfTax
74 Other Comprehensive Loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
75 Total Comprehensive Loss Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
76 Basic and diluted loss per common share Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
77 Weighted average number of common shares outstanding Concept (Shares) For Period ifrs-full:WeightedAverageShares
78 1004 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS Network

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 http://www.alexcoresource.com/role/ConsolidatedStatementsOfCashFlows
79 Implied Table Table

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80 Statement of Cash Flows [Abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
81 Cash Flows used in Operating Activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
82 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
83 Items not affecting cash from operations: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
84 Environmental services contract loss provision Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForProvisions
85 Depreciation of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationExpense
86 Amortization of intangible assets Concept (Monetary) For Period ifrs-full:AmortisationIntangibleAssetsOtherThanGoodwill
87 Share-based compensation expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
88 Finance costs, foreign exchange and other Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
89 Realized gain on disposition of investments Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainLossOnDisposalOfInvestmentsInSubsidiariesJointVenturesAndAssociates
90 Unrealized loss (gain) on investments Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnFairValueAdjustmentInvestmentProperty
91 Advisory fees paid in shares Concept (Monetary) For Period Credit cik0001364128:AdjustmentsForDecreaseIncreaseInAdvisoryFeesPaidInShares
92 Deferred income tax provision Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncome
93 Changes in non-cash working capital balances related to operations Abstract cik0001364128:ChangesInNoncashWorkingCapitalBalancesRelatedToOperationsAbstract
94 (Increase) decrease in accounts and other receivables Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAndOtherReceivables
95 Increase in inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
96 (Increase) decrease in prepaid expenses and other current assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInOtherCurrentAssets
97 Decrease in deferred revenue Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInDeferredIncome
98 Increase in accounts payable and accrued liabilities Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInTradeAccountPayable
99 Cash flows used in operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
100 Cash Flows (used in) from Investing Activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
101 Expenditures on mineral properties Concept (Monetary) For Period Credit ifrs-full:PurchaseOfMiningAssets
102 Purchase or disposal of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
103 Decrease (Increase) in restricted cash Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents
104 Acquisition of subsidiary Concept (Monetary) For Period Credit cik0001364128:CashFlowsUsedInAcquisitionOfSubsidiary
105 Purchase (disposal) of investments Concept (Monetary) For Period Debit ifrs-full:ProceedsFromDisposalOrMaturityOfAvailableforsaleFinancialAssets
106 Cash flows from (used in) investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
107 Cash Flows from (used in) Financing Activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
108 Proceeds from issuance of shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
109 Issuance costs Concept (Monetary) For Period Credit ifrs-full:PaymentsForShareIssueCosts
110 Proceeds from exercise of warrants Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingOtherEquityInstruments
111 Proceeds from exercise of stock options Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
112 Cash flows from (used in) financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
113 Decrease in Cash and Cash Equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
114 Cash and Cash Equivalents - Beginning of Year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
115 Cash and Cash Equivalents - End of Year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
116 1005 - Statement - CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY Network

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 http://www.alexcoresource.com/role/ConsolidatedStatementsOfShareholdersEquity
117 Statement of equity [Table] Table

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 cik0001364128:StatementOfEquityTable
118 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
119 Equity [Member] Member ifrs-full:EquityMember
120 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
121 Warrants [Member] Member cik0001364128:WarrantsMember
122 Share options and RSU [Member] Member cik0001364128:ShareOptionsAndRsuMember
123 Contributed surplus [Member] Member cik0001364128:ContributedSurplusMember
124 Retained Earnings [Member] Member ifrs-full:RetainedEarningsMember
125 AOCI Attributable to Parent [Member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
126 Statement of equity [Line Items] LineItems cik0001364128:StatementOfEquityLineItems
127 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
128 Balance (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
129 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
130 Other comprehensive income (loss) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
131 Share-based compensation expense recognized Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
132 Flow-through shares equity offering, net of issuance costs and tax Concept (Monetary) For Period Credit ifrs-full:IssueOfEquity
133 Flow-through shares equity offering, net of issuance costs and tax (in shares) Concept (Shares) For Period cik0001364128:NumberOfNewSharesIssued
134 Credit Facility fee - warrants Concept (Monetary) For Period Credit cik0001364128:IncreaseDecreaseOfCreditFacilityFeeWarrants
135 Acquistion of Contango Strategies Concept (Monetary) For Period Credit cik0001364128:StockIssuredDuringPeriodValueIssuedForAcquisitionOfContango
136 Acquistion of Contango Strategies (in shares) Concept (Shares) For Period cik0001364128:StockIssuredDuringPeriodSharesIssuedForAcquisitionOfContango
137 Shares issued - advisory fees Concept (Monetary) For Period Credit cik0001364128:ValueOfSharesIssuedForAdvisoryFees
138 Shares issued - advisory fees (in shares) Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForAdvisoryFees
139 Shares issued - consideration for Wheaton Concept (Monetary) For Period Credit cik0001364128:ValueOfSharesIssuedAsConsiderationToWheaton
140 Shares issued - consideration for Wheaton (in shares) Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedAsConsiderationToWheaton
141 Exercise of share options Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
142 Exercise of share options (in shares) Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForExerciseOfShareOptions
143 Exercise of warrants Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfWarrantsEquity
144 Exercise of warrants (in shares) Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForExerciseOfWarrants
145 Shares issued on Option Agreement Concept (Monetary) For Period Credit cik0001364128:StockIssuredDuringPeriodValueOfOptionAgreement
146 Shares issued on Option Agreement (in shares) Concept (Shares) For Period cik0001364128:StockIssuredDuringPeriodSharesIssuedOnOptionAgreement
147 Share options forfeited or expired Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
148 Release of RSU settlement shares Concept (Monetary) For Period Credit cik0001364128:ValueOfSharesIssuedForReleaseOfRsuSettlementShares
149 Release of RSU settlement shares (in shares) Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForReleaseOfRsuSettlementShares
150 Balance Concept (Monetary) As Of Credit ifrs-full:Equity
151 Balance (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
152 1006 - Disclosure - Description of Business and Nature of Operations Network

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153 Implied Table Table

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154 Description of Business and Nature of Operations [Abstract] Abstract cik0001364128:DescriptionOfBusinessAndNatureOfOperationsAbstract
155 Description of Business and Nature of Operations [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DescriptionOfBusinessAndNatureOfOperationsTextBlock
156 1007 - Disclosure - Basis of Preparation and Statement of Compliance Network

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157 Implied Table Table

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158 Basis of Preparation and Statement of Compliance [Abstract] Abstract cik0001364128:BasisOfPreparationAndStatementOfComplianceAbstract
159 Disclosure of basis of preparation of financial statements [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory
160 1008 - Disclosure - Summary of Significant Accounting Policies Network

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161 Implied Table Table

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162 Summary of Significant Accounting Policies [Abstract] Abstract cik0001364128:SummaryOfSignificantAccountingPoliciesAbstract
163 Disclosure of significant accounting policies [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory
164 1009 - Disclosure - New and Revised Accounting Standards Network

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165 Implied Table Table

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166 New and Revised Accounting Standards Adopted [Abstract] Abstract cik0001364128:NewAndRevisedAccountingStandardsAdoptedAbstract
167 Disclosure of changes in accounting policies, accounting estimates and errors [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingPoliciesAccountingEstimatesAndErrorsExplanatory
168 1010 - Disclosure - Critical Judgements and Major Sources of Estimation Uncertainty Network

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169 Implied Table Table

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170 Critical Judgements and Major Sources of Estimation Uncertainty [Abstract] Abstract cik0001364128:CriticalJudgementsAndMajorSourcesOfEstimationUncertaintyAbstract
171 Disclosure of accounting judgements and estimates [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccountingJudgementsAndEstimatesExplanatory
172 1011 - Disclosure - Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements Network

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173 Implied Table Table

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174 Disclosure of information about consolidated structured entities [abstract] Abstract ifrs-full:DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract
175 Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements [text block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfInformationAboutConsolidatedStructuredAdjustmentEntitiesTextBlock
176 1012 - Disclosure - Acquisition of Contango Strategies Ltd Network

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 http://www.alexcoresource.com/role/AcquisitionOfContangoStrategiesLtd
177 Implied Table Table

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178 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
179 Disclosure Of Acquisition Of Contango Strategies Ltd [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfAcquisitionOfContangoStrategiesLtdTextBlock
180 1013 - Disclosure - Cash and Cash Equivalents Network

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181 Implied Table Table

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182 Cash and Cash Equivalents [Abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
183 Disclosure of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndCashEquivalentsExplanatory
184 1014 - Disclosure - Accounts and Other Receivables Network

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185 Implied Table Table

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186 Accounts and Other Receivables [Abstract] Abstract cik0001364128:AccountsAndOtherReceivablesAbstract
187 Disclosure of trade and other receivables [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory
188 1015 - Disclosure - Restricted Cash and Deposits Network

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189 Implied Table Table

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190 Restricted Cash and Deposits [Abstract] Abstract cik0001364128:RestrictedCashAndDepositsAbstract
191 Disclosure of restricted cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRestrictedCashAndCashEquivalentsExplanatory
192 1016 - Disclosure - Investments Network

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193 Implied Table Table

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194 Disclosure of Investments [Abstract] Abstract cik0001364128:DisclosureOfInvestmentsAbstract
195 Disclosure of Investments [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfInvestmentsTextBlock
196 1017 - Disclosure - Inventories Network

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197 Implied Table Table

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198 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
199 Disclosure of inventories [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInventoriesExplanatory
200 1018 - Disclosure - Property, Plant and Equipment Network

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 http://www.alexcoresource.com/role/PropertyPlantAndEquipment
201 Implied Table Table

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202 Property, Plant and Equipment [Abstract] Abstract ifrs-full:PropertyPlantAndEquipmentAbstract
203 Disclosure of property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfPropertyPlantAndEquipmentExplanatory
204 1019 - Disclosure - Mineral Properties Network

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 http://www.alexcoresource.com/role/MineralProperties
205 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
206 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
207 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
208 Mining assets [member] Member ifrs-full:MiningAssetsMember
209 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
210 Disclosure Of Mineral Properties [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfMineralPropertiesTextBlock
211 1020 - Disclosure - Embedded Derivative Asset and Silver Stream Network

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212 Implied Table Table

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213 Embedded Derivative Asset and Silver Stream [Abstract] Abstract cik0001364128:EmbeddedDerivativeAssetAndSilverStreamAbstract
214 Disclosure Of Embedded Derivative Asset and Silver Stream [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfEmbeddedDerivativeAssetAndSilverStreamTextBlock
215 1021 - Disclosure - Accounts payable and accrued liabilities Network

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216 Implied Table Table

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217 Accounts Payables And Accrued Liabilities [Abstract] Abstract cik0001364128:AccountsPayablesAndAccruedLiabilitiesAbstract
218 Disclosure of accrued expenses and other liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfAccruedExpensesAndOtherLiabilitiesExplanatory
219 1022 - Disclosure - Credit Facility Network

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220 Implied Table Table

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221 Disclosure Of Credit Facility [Abstract] Abstract cik0001364128:DisclosureOfCreditFacilityAbstract
222 Disclosure Of Credit Facility [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfCreditFacilityTextBlock
223 1023 - Disclosure - Decommissioning and Rehabilitation Provision Network

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224 Implied Table Table

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225 Disclosure of other provisions [abstract] Abstract ifrs-full:DisclosureOfOtherProvisionsAbstract
226 Disclosure of other provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherProvisionsExplanatory
227 1024 - Disclosure - Capital and Reserves Network

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228 Implied Table Table

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229 Capital and reserves [Abstract] Abstract cik0001364128:CapitalAndReservesAbstract
230 Disclosure Of Share Capital Reserves And Other EquityInterest Explanatory [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfShareCapitalReservesAndOtherEquityinterestExplanatoryTextBlock
231 1025 - Disclosure - Revenue from Environmental Services Network

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232 Implied Table Table

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233 Disclosure of revenue [Abstract] Abstract cik0001364128:DisclosureOfRevenueAbstract
234 Disclosure Of Revenue From Environmental Services [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfRevenueFromEnvironmentalServicesTextBlock
235 1026 - Disclosure - General and Administrative Expenses by Nature of Expense Network

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236 Implied Table Table

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237 Disclosure Of General And Administrative Expenses [Abstract] Abstract cik0001364128:DisclosureOfGeneralAndAdministrativeExpensesAbstract
238 Disclosure of general and administrative expense [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfGeneralAndAdministrativeExpenseExplanatory
239 1027 - Disclosure - Mine Site Care and Maintenance Network

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240 Disclosure of Exploration and Evaluation Assets [Table] Table

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 cik0001364128:DisclosureOfExplorationAndEvaluationAssetsTable
241 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
242 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
243 Disclosure of Exploration and evaluation Assets [Line Items] LineItems cik0001364128:DisclosureOfExplorationAndEvaluationAssetsLineItems
244 Disclosure of exploration and evaluation assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfExplorationAndEvaluationAssetsExplanatory
245 1028 - Disclosure - Other Income and expenses Network

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246 Implied Table Table

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247 Disclosure of Other Operating Income Expense [Abstract] Abstract cik0001364128:DisclosureOfOtherOperatingIncomeExpenseAbstract
248 Disclosure of other operating income (expense) [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory
249 1029 - Disclosure - Income Tax Expense Network

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250 Implied Table Table

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251 Disclosure of income tax [Abstract] Abstract cik0001364128:DisclosureOfIncomeTaxAbstract
252 Disclosure of income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIncomeTaxExplanatory
253 1030 - Disclosure - Financial Instruments Network

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254 Implied Table Table

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255 Disclosure of Financial Instrument [Abstract] Abstract cik0001364128:DisclosureOfFinancialInstrumentAbstract
256 Disclosure of financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinancialInstrumentsExplanatory
257 1031 - Disclosure - Management of Capital Network

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258 Implied Table Table

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259 Disclosure of share capital, reserves and other equity interest [Abstract] Abstract cik0001364128:DisclosureOfShareCapitalReservesAndOtherEquityInterestAbstract
260 Disclosure of objectives, policies and processes for managing capital [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalExplanatory
261 1032 - Disclosure - Supplemental Cash Flow Information Network

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262 Implied Table Table

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263 Disclosure Of Cash Flow Statement Explanatory [Abstract] Abstract cik0001364128:DisclosureOfCashFlowStatementExplanatoryAbstract
264 Disclosure of cash flow statement [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
265 1033 - Disclosure - Segmented Information Network

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266 Implied Table Table

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267 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
268 Disclosure of entity's operating segments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory
269 1034 - Disclosure - Related Party Transactions Network

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270 Implied Table Table

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271 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
272 Disclosure of related party [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
273 1035 - Disclosure - Commitments Network

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274 Implied Table Table

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275 Disclosure Of Commitments And Contingencies [Abstract] Abstract cik0001364128:DisclosureOfCommitmentsAndContingenciesAbstract
276 Disclosure of commitments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
277 1036 - Disclosure - Summary of Significant Accounting Policies (Policies) Network

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278 Implied Table Table

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279 Summary of Significant Accounting Policies [Abstract] Abstract cik0001364128:SummaryOfSignificantAccountingPoliciesAbstract
280 Description of accounting policy for basis of consolidation [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DescriptionOfAccountingPolicyForBasisOfConsolidationTextBlock
281 Description of accounting policy for determining components of cash and cash equivalents [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
282 Description of accounting policy for inventories [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DescriptionOfAccountingPolicyForInventoriesTextBlock
283 Description of accounting policy for property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
284 Description of accounting policy for mineral properties [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DescriptionOfAccountingPolicyForMineralPropertiesTextBlock
285 Description of accounting policy for intangible assets other than goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIntangibleAssetsOtherThanGoodwillExplanatory
286 Description of accounting policy for impairment of non-financial assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfNonfinancialAssetsExplanatory
287 Description of accounting policy for provisions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForProvisionsExplanatory
288 Description of accounting policy for recognition of revenue [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForRecognitionOfRevenue
289 Description of accounting policy for share-based payment transactions [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForSharebasedPaymentTransactionsExplanatory
290 Description of accounting policy for flow through shares [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DescriptionOfAccountingPolicyForFlowThroughSharesTextBlock
291 Description of accounting policy for warrants [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForWarrantsExplanatory
292 Description of accounting policy for income tax [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory
293 Description of accounting policy for foreign currency translation [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
294 Description of accounting policy for earnings per share [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
295 Description of accounting policy for financial instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory
296 Description of accounting policy for fair value measurement [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForFairValueMeasurementExplanatory
297 Description of accounting policy for goodwill [text block] Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
298 1037 - Disclosure - Summary of Significant Accounting Policies (Tables) Network

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299 Implied Table Table

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300 Summary of Significant Accounting Policies [Abstract] Abstract cik0001364128:SummaryOfSignificantAccountingPoliciesAbstract
301 Disclosure of detailed information about property, plant and equipment Useful Life [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentUsefulLifeTextBlock
302 1038 - Disclosure - Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements (Tables) Network

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303 Implied Table Table

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304 Disclosure of information about consolidated structured entities [abstract] Abstract ifrs-full:DisclosureOfInformationAboutConsolidatedStructuredEntitiesAbstract
305 Disclosure Of Information About Consolidated Consolidated Balance Sheets [Table Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfInformationAboutConsolidatedConsolidatedBalanceSheetsTableTextBlock
306 Disclosure Of Information About Consolidated Consolidated Statements Of Loss and Comprehensive [Table Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfInformationAboutConsolidatedConsolidatedStatementsOfLossAndComprehensiveTableTextBlock
307 1039 - Disclosure - Acquisition of Contango Strategies Ltd (Tables) Network

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308 Implied Table Table

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309 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
310 Disclosure of detailed information about business combination [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
311 Summary of the revenues, cost of sales and net income (loss) [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfProformaSummaryOfRevenueCostSalesAndNetIncome
312 1040 - Disclosure - Cash and Cash Equivalents (Tables) Network

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313 Implied Table Table

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314 Cash and Cash Equivalents [Abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
315 Disclosure of cash and bank balances at central banks [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashAndBankBalancesAtCentralBanksExplanatory
316 1041 - Disclosure - Accounts and Other Receivables (Tables) Network

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317 Implied Table Table

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318 Accounts and Other Receivables [Abstract] Abstract cik0001364128:AccountsAndOtherReceivablesAbstract
319 Schedule Of Accounts And Other Receivables [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfAccountsAndOtherReceivablesTextBlock
320 1042 - Disclosure - Restricted Cash and Deposits (Tables) Network

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321 Implied Table Table

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322 Restricted Cash and Deposits [Abstract] Abstract cik0001364128:RestrictedCashAndDepositsAbstract
323 Schedule Of Restricted Cash And Cash Equivalent [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfRestrictedCashAndCashEquivalentTextBlock
324 1043 - Disclosure - Investments (Tables) Network

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325 Implied Table Table

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326 Disclosure of Investments [Abstract] Abstract cik0001364128:DisclosureOfInvestmentsAbstract
327 Schedule of Investments [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfInvestmentsTextBlock
328 1044 - Disclosure - Inventories (Tables) Network

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329 Implied Table Table

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330 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
331 Disclosure of Detailed Information on inventories [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDetailedInformationOnInventoriesTextBlock
332 1045 - Disclosure - Property, Plant and Equipment (Tables) Network

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333 Implied Table Table

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334 Property, Plant and Equipment [Abstract] Abstract ifrs-full:PropertyPlantAndEquipmentAbstract
335 Disclosure of detailed information about property, plant and equipment [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory
336 1046 - Disclosure - Mineral Properties (Tables) Network

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337 Implied Table Table

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338 Mineral Properties [Abstract] Abstract cik0001364128:MineralPropertiesAbstract
339 Disclosure of detailed information about investment property [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutInvestmentPropertyExplanatory
340 Schedule Of Changes In Mineral Properties [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfChangesInMineralPropertiesTextBlock
341 1047 - Disclosure - Embedded Derivative Asset and Silver Stream (Table) Network

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342 Implied Table Table

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343 Disclosure of Derivative Financial Instrument [Abstract] Abstract cik0001364128:DisclosureOfDerivativeFinancialInstrumentAbstract
344 Disclosure Of Derivative Financial Instruments Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDerivativeFinancialInstruments
345 1048 - Disclosure - Accounts payable and accrued liabilities (Tables) Network

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346 Implied Table Table

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347 Accounts Payables And Accrued Liabilities [Abstract] Abstract cik0001364128:AccountsPayablesAndAccruedLiabilitiesAbstract
348 Schedule Of Accounts Payable And Accrued Liabilities [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfAccountsPayableAndAccruedLiabilitiesTextBlock
349 1049 - Disclosure - Decommissioning and Rehabilitation Provision (Tables) Network

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350 Implied Table Table

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351 Disclosure of other provisions [abstract] Abstract ifrs-full:DisclosureOfOtherProvisionsAbstract
352 Disclosure of detailed information about decommissioning and rehabilitation provision [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDetailedInformationAboutDecommissioningAndRehabilitationProvisionTextBlock
353 1050 - Disclosure - Capital and Reserves (Tables) Network

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354 Capital and reserves [Table] Table

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355 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
356 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
357 Warrants [Member] Member cik0001364128:WarrantsMember
358 Restricted Share Units [Member] Member cik0001364128:RestrictedShareUnitsMember
359 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
360 Disclosure of number and weighted average exercise prices of other equity instruments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
361 Disclosure of number and weighted average exercise prices of share options [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
362 Disclosure of range of exercise prices of outstanding share options [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory
363 1051 - Disclosure - Revenue from Environmental Services (Tables) Network

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364 Implied Table Table

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365 Disclosure of revenue [Abstract] Abstract cik0001364128:DisclosureOfRevenueAbstract
366 Disclosure Of Detailed Information About Revenue From Services text block [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDetailedInformationAboutRevenueFromServicestextBlockTextBlock
367 1052 - Disclosure - General and Administrative Expenses by Nature of Expense (Tables) Network

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368 Implied Table Table

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369 Disclosure Of General And Administrative Expenses [Abstract] Abstract cik0001364128:DisclosureOfGeneralAndAdministrativeExpensesAbstract
370 Schedule Of General And Administrative Expenses [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfGeneralAndAdministrativeExpensesTextBlock
371 1053 - Disclosure - Mine Site Care and Maintenance (Tables) Network

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372 Implied Table Table

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373 Disclosure of exploration and evaluation assets [Abstract] Abstract cik0001364128:DisclosureOfExplorationAndEvaluationAssetsAbstract
374 Schedule of mine site care and maintenance expenses [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfMineSiteCareAndMaintenanceExpensesTextBlock
375 1054 - Disclosure - Other Income and expenses (Tables) Network

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376 Implied Table Table

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377 Disclosure of Other Operating Income Expense [Abstract] Abstract cik0001364128:DisclosureOfOtherOperatingIncomeExpenseAbstract
378 Disclosure Of Other Operating Income Expense Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfOtherOperatingIncomeExpense
379 1055 - Disclosure - Income Tax Expense (Tables) Network

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380 Implied Table Table

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381 Disclosure of income tax [Abstract] Abstract cik0001364128:DisclosureOfIncomeTaxAbstract
382 Detailed Information for Reconciliation Of Income Tax Provision [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DetailedInformationForReconciliationOfIncomeTaxProvisionTextBlock
383 Disclosure of temporary difference, unused tax losses and unused tax credits [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsExplanatory
384 Detailed Information Of Unrecognised Tax Attributes [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DetailedInformationOfUnrecognisedTaxAttributesTextBlock
385 Disclosure Of Detailed Information Of Unrecognised And Unused Tax Losses [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:DisclosureOfDetailedInformationOfUnrecognisedAndUnusedTaxLossesTextBlock
386 1056 - Disclosure - Financial Instruments (Tables) Network

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387 Implied Table Table

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388 Disclosure of Financial Instrument [Abstract] Abstract cik0001364128:DisclosureOfFinancialInstrumentAbstract
389 Disclosure of fair value measurement of assets [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueMeasurementOfAssetsExplanatory
390 Disclosure of internal credit grades [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInternalCreditExposuresExplanatory
391 Disclosure of credit risk exposure [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCreditRiskExposureExplanatory
392 Disclosure of maturity analysis for non-derivative financial liabilities [text block] Concept (Text Block (HTML)) For Period ifrs-full:MaturityAnalysisForNonderivativeFinancialLiabilities
393 1057 - Disclosure - Supplemental Cash Flow Information (Tables) Network

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394 Implied Table Table

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395 Disclosure Of Cash Flow Statement Explanatory [Abstract] Abstract cik0001364128:DisclosureOfCashFlowStatementExplanatoryAbstract
396 Schedule Of Supplimental Cash Flow Information [Text Block] Concept (Text Block (HTML)) For Period cik0001364128:ScheduleOfSupplimentalCashFlowInformationTextBlock
397 1058 - Disclosure - Segmented Information (Tables) Network

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398 Implied Table Table

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399 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
400 Disclosure of operating segments [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
401 1059 - Disclosure - Related Party Transactions (Tables) Network

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402 Implied Table Table

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403 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
404 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
405 1060 - Disclosure - Commitments (Tables) Network

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406 Implied Table Table

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407 Disclosure Of Commitments And Contingencies [Abstract] Abstract cik0001364128:DisclosureOfCommitmentsAndContingenciesAbstract
408 Disclosure of finance lease and operating lease by lessee [text block] Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeExplanatory
409 1061 - Disclosure - Summary of Significant Accounting Policies (Details) Network

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410 Disclosure of significant accounting policies [Table] Table

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411 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
412 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
413 Land and buildings [member] Member ifrs-full:LandAndBuildingsMember
414 Leasehold Improvements [Member] Member ifrs-full:LeaseholdImprovementsMember
415 Heavy machinery and equipment [Member] Member cik0001364128:HeavyMachineryAndEquipmentMember
416 Roads, Camp and other site infrastructure [Member] Member cik0001364128:RoadsCampAndOtherSiteInfrastructureMember
417 Ore-processing mill components [Member] Member cik0001364128:OreprocessingMillComponentsMember
418 Disclosure of significant accounting policies [Line Items] LineItems cik0001364128:DisclosureOfSignificantAccountingPoliciesLineItems
419 Useful lives or depreciation rates, property, plant and equipment Concept (Text/String) For Period ifrs-full:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipment
420 1062 - Disclosure - Summary of Significant Accounting Policies (Details Textual) Network

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421 Implied Table Table

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422 Summary of Significant Accounting Policies [Abstract] Abstract cik0001364128:SummaryOfSignificantAccountingPoliciesAbstract
423 Initial Deposit On Mineral Asset Concept (Monetary) As Of Credit cik0001364128:InitialDepositOnMineralAsset
424 1063 - Disclosure - New and Revised Accounting Standards (Details Textual) Network

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425 New and Revised Accounting Standards [Table] Table

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426 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
427 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
428 New and Revised Accounting Standards [Line Items] LineItems cik0001364128:NewAndRevisedAccountingStandardsLineItems
429 Lease liabilities Concept (Monetary) As Of Credit ifrs-full:LeaseLiabilities
430 Right-of-use assets Concept (Monetary) As Of Debit ifrs-full:RightofuseAssets
431 1064 - Disclosure - Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements (Details) Network

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432 Statement [Table] Table

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433 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
434 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
435 Departure from requirement of IFRS [axis] Axis ifrs-full:DepartureFromRequirementOfIFRSAxis
436 Currently stated [member] Member ifrs-full:RestatedMember
437 IFRS 6 [Member] Member cik0001364128:IFRS6Member
438 Statement [Line Items] LineItems us-gaap:StatementLineItems
439 Equity before accounting changes Concept (Monetary) As Of Credit cik0001364128:EquityBeforeAccountingChanges
440 Adjustments to equity [Abstract] Abstract cik0001364128:AdjustmentsToEquityAbstract
441 Property plant and equipment Concept (Monetary) As Of Debit cik0001364128:AdjustmentsToPropertyPlantAndEquipment
442 Mineral properties Concept (Monetary) As Of Debit cik0001364128:AdjsutmentToMineralProperties
443 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
444 Silver streaming interest Concept (Monetary) As Of Credit cik0001364128:AdjustmentsSilverStreammingInterest
445 Equity after accounting changes Concept (Monetary) As Of Credit ifrs-full:Equity
446 1065 - Disclosure - Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements (Details 1) Network

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447 Statement [Table] Table

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448 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
449 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
450 Statement [Line Items] LineItems us-gaap:StatementLineItems
451 Loss before accounting changes Concept (Monetary) For Period Debit cik0001364128:NetincomeLossBeforeAccountingChanges
452 Adjustments to loss relating to: Abstract cik0001364128:AdjustmentsToLossRelatingAbstract
453 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
454 Loss after accounting changes Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
455 Loss per share before accounting changes: Abstract cik0001364128:LossPerSharesBeforeAccountingChangesAbstract
456 Basic and diluted Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
457 Loss per share after accounting changes: Abstract cik0001364128:LossPerShareAfterAccountingChangesAbstract
458 Basic and diluted Concept (Share) For Period ifrs-full:BasicAndDilutedEarningsLossPerShare
459 1066 - Disclosure - Impacts of Change in Accounting Policy and Adoption of New IFRS Pronouncements (Details Textual) Network

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460 Statement [Table] Table

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461 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
462 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
463 Statement [Line Items] LineItems us-gaap:StatementLineItems
464 Adjustments Of Initial Deposits Agains Mineral Interest Concept (Monetary) For Period Credit cik0001364128:AdjustmentsOfInitialDepositsAgainsMineralInterest
465 1067 - Disclosure - Acquisition of Contango Strategies Ltd. (Details) Network

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466 Implied Table Table

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467 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
468 Amount settled in cash Concept (Monetary) As Of Credit ifrs-full:CashTransferred
469 Fair value of common shares issued Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
470 Fair value of cash to be settled in one year Concept (Monetary) As Of Credit cik0001364128:BusinessAcquisitionFairValueOfCashPayable
471 Total fair value of consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
472 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
473 Accounts and other receivables Concept (Monetary) As Of Debit cik0001364128:AccountsAndOtherReceivablesAsOfAcquisitionDate
474 Inventory Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
475 Prepaid Expenses Concept (Monetary) As Of Debit cik0001364128:PrepaidExpenses
476 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
477 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
478 Net identifiable assets acquired and liabilities assumed Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
479 Goodwill on acquisition Concept (Monetary) As Of Debit ifrs-full:GoodwillRecognisedAsOfAcquisitionDate
480 Net cash outflow on acquisition Concept (Monetary) For Period Credit cik0001364128:PaymentsToAcquireBusinessNetOfCashAcquired
481 Acquisition costs charged to expenses Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
482 1068 - Disclosure - Acquisition of Contango Strategies Ltd. (Details 1) Network

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483 Implied Table Table

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484 Disclosure of detailed information about business combination [abstract] Abstract ifrs-full:DisclosureOfBusinessCombinationsAbstract
485 Revenue of acquiree since acquisition date Concept (Monetary) For Period Credit ifrs-full:RevenueOfAcquiree
486 Cost of Sales And Other Expenses Of Acquiree Concept (Monetary) For Period Debit cik0001364128:CostOfSalesAndOtherExpensesOfAcquiree
487 Profit (loss) of acquiree since acquisition date Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfAcquiree
488 Revenue of combined entity as if combination occurred at beginning of period Concept (Monetary) For Period Credit ifrs-full:RevenueOfCombinedEntity
489 Cost Of Sales And Other Expenses combined entity Concept (Monetary) For Period Debit cik0001364128:CostOfSalesAndOtherExpensesCombinedEntity
490 Profit (loss) of combined entity as if combination occurred at beginning of period Concept (Monetary) For Period Credit ifrs-full:ProfitLossOfCombinedEntity
491 Profit (loss) Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
492 Cost Of Sales And Other Expenses combined entity Concept (Monetary) For Period Credit cik0001364128:CostOfSalesAndOtherExpensesCombinedEntityCombined
493 Revenue from rendering of services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
494 1069 - Disclosure - Acquisition of Contango Strategies Ltd. (Details Textual) Network

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495 Statement [Table] Table

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 us-gaap:StatementTable
496 Business Consideration [Axis] Axis cik0001364128:BusinessConsiderationAxis
497 Business Consideration [Member] Member cik0001364128:BusinessConsiderationMember
498 Tranche One [Member] Member cik0001364128:TrancheOneMember
499 Tranche Two [Member] Member cik0001364128:TrancheTwoMember
500 Statement [Line Items] LineItems us-gaap:StatementLineItems
501 Percentage of voting equity interests acquired Concept (Percent) As Of ifrs-full:PercentageOfVotingEquityInterestsAcquired
502 Consideration transferred, acquisition-date fair value Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
503 Cash transferred Concept (Monetary) As Of Credit ifrs-full:CashTransferred
504 Number of instruments or interests issued or issuable Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
505 Equity interests of acquirer Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
506 Share Issue Price Concept (Share) As Of cik0001364128:ShareIssuePrice
507 Business Acquisition Fair Value Of Cash Payable Concept (Monetary) As Of Credit cik0001364128:BusinessAcquisitionFairValueOfCashPayable
508 Identifiable assets acquired (liabilities assumed) Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
509 Acquisition-related costs recognised as expense for transaction recognised separately from acquisition of assets and assumption of liabilities in business combination Concept (Monetary) For Period Debit ifrs-full:AcquisitionrelatedCostsRecognisedAsExpenseForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination
510 Goodwill recognised as of acquisition date Concept (Monetary) As Of Debit ifrs-full:GoodwillRecognisedAsOfAcquisitionDate
511 Revenue of acquiree since acquisition date Concept (Monetary) For Period Credit ifrs-full:RevenueOfAcquiree
512 1070 - Disclosure - Cash and Cash Equivalents (Details) Network

*

*

 http://www.alexcoresource.com/role/CashAndCashEquivalentsDetails
513 Implied Table Table

*

*

 implied:Table
514 Cash and Cash Equivalents [Abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
515 Cash at bank and on hand Concept (Monetary) As Of Debit ifrs-full:Cash
516 Short-term bank deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
517 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
518 1071 - Disclosure - Accounts and Other Receivables (Details) Network

*

*

 http://www.alexcoresource.com/role/AccountsAndOtherReceivablesDetails
519 Implied Table Table

*

*

 implied:Table
520 Accounts and Other Receivables [Abstract] Abstract cik0001364128:AccountsAndOtherReceivablesAbstract
521 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
522 Interest and other Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
523 Trade and other current receivables Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
524 1072 - Disclosure - Restricted Cash and Deposits (Details) Network

*

*

 http://www.alexcoresource.com/role/RestrictedCashAndDepositsDetails
525 Implied Table Table

*

*

 implied:Table
526 Restricted Cash and Deposits [Abstract] Abstract cik0001364128:RestrictedCashAndDepositsAbstract
527 Security for decommissioning obligations Concept (Monetary) As Of Debit cik0001364128:SecurityForDecommissioningObligations
528 Security for remediation services agreement Concept (Monetary) As Of Debit cik0001364128:SecurityForRemediationServicesAgreement
529 Other Concept (Monetary) As Of Debit cik0001364128:OtherRestrictedCash
530 Restricted cash and deposits Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
531 Less: Current portion Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
532 Non-current restricted cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:NoncurrentRestrictedCashAndCashEquivalents
533 1073 - Disclosure - Restricted Cash and Deposits (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/RestrictedCashAndDepositsDetailsTextual
534 Disclosure of restricted cash and deposits [Table] Table

*

*

 cik0001364128:DisclosureOfRestrictedCashAndDepositsTable
535 Range [Axis] Axis ifrs-full:RangeAxis
536 Ranges [member] Member ifrs-full:RangesMember
537 Disclosure of restricted cash and deposits [Line Items] LineItems cik0001364128:DisclosureOfRestrictedCashAndDepositsLineItems
538 Security for remediation services agreement Concept (Monetary) As Of Debit cik0001364128:SecurityForRemediationServicesAgreement
539 Security for decommissioning obligations Concept (Monetary) As Of Debit cik0001364128:SecurityForDecommissioningObligations
540 Surety Bond Collateralized Concept (Monetary) As Of Debit cik0001364128:SuretyBondCollateralized
541 Unrestricted Cash and Cash Equivalents Concept (Monetary) As Of Debit cik0001364128:UnrestrictedCashAndCashEquivalents
542 1074 - Disclosure - Investments (Details) Network

*

*

 http://www.alexcoresource.com/role/InvestmentsDetails
543 Disclosure of Investments [Table] Table

*

*

 cik0001364128:DisclosureOfInvestmentsTable
544 Classes of assets [axis] Axis ifrs-full:ClassesOfAssetsAxis
545 Assets [member] Member ifrs-full:ClassesOfAssetsMember
546 Common shares held [member] Member cik0001364128:CommonShareHeldMember
547 Warrants held [member] Member cik0001364128:WarrantHeldMember
548 Disclosure of Investments [Line Items] LineItems cik0001364128:DisclosureOfInvestmentsLineItems
549 Investments other than investments accounted for using equity method Concept (Monetary) As Of Debit ifrs-full:InvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
550 Current investments Concept (Monetary) As Of Debit ifrs-full:CurrentInvestments
551 Non-current investments other than investments accounted for using equity method Concept (Monetary) As Of Debit ifrs-full:NoncurrentInvestmentsOtherThanInvestmentsAccountedForUsingEquityMethod
552 1075 - Disclosure - Investments (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/InvestmentsDetailsTextual
553 Disclosure of Investments [Table] Table

*

*

 cik0001364128:DisclosureOfInvestmentsTable
554 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
555 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
556 Warrants [Member] Member cik0001364128:WarrantsMember
557 Unconsolidated structured entities controlled by investment entity [axis] Axis ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityAxis
558 Unconsolidated structured entities controlled by investment entity [member] Member ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityMember
559 Golden Predator Mining Corp [Member] Member cik0001364128:GoldenPredatorMiningCorpMember
560 Banyan Gold corp [Member] Member cik0001364128:BanyanGoldCorpMember
561 Range [Axis] Axis ifrs-full:RangeAxis
562 Ranges [member] Member ifrs-full:RangesMember
563 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
564 Top of range [member] Member ifrs-full:TopOfRangeMember
565 Disclosure of Investments [Line Items] LineItems cik0001364128:DisclosureOfInvestmentsLineItems
566 Weighted average exercise price of other equity instruments exercisable in share-based payment arrangement Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsExercisableInSharebasedPaymentArrangement
567 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
568 Losses on disposals of investments Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfInvestments
569 Gains (losses) recognised in profit or loss, fair value measurement, assets Concept (Monetary) For Period ifrs-full:GainsLossesRecognisedInProfitOrLossFairValueMeasurementAssets
570 1076 - Disclosure - Inventories (Details) Network

*

*

 http://www.alexcoresource.com/role/InventoriesDetails
571 Implied Table Table

*

*

 implied:Table
572 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
573 Ore in stockpiles and mill supplies Concept (Monetary) As Of Debit ifrs-full:CurrentOreStockpiles
574 Materials and supplies Concept (Monetary) As Of Debit ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies
575 Inventory Concept (Monetary) As Of Debit ifrs-full:InventoriesTotal
576 Less: current portion Concept (Monetary) As Of Debit ifrs-full:Inventories
577 Non-current inventories Concept (Monetary) As Of Debit ifrs-full:NoncurrentInventories
578 1077 - Disclosure - Property, Plant and Equipment (Details) Network

*

*

 http://www.alexcoresource.com/role/PropertyPlantAndEquipmentDetails
579 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
580 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
581 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
582 Land and Buildings [Member] Member ifrs-full:LandAndBuildingsMember
583 Camp, Roads, and Other Site [Member] Member cik0001364128:RoadsCampAndOtherSiteInfrastructureMember
584 Ore-Processing Mill [Member] Member cik0001364128:OreprocessingMillComponentsMember
585 Heavy machinery and equipment [Member] Member cik0001364128:HeavyMachineryAndEquipmentMember
586 Leasehold Improvements & Other [Member] Member ifrs-full:LeaseholdImprovementsMember
587 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
588 Carrying amount [member] Member ifrs-full:CarryingAmountMember
589 Cost [member] Member ifrs-full:GrossCarryingAmountMember
590 Accumulated Depreciation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
591 Net book value [Member] Member cik0001364128:NetBookValueMember
592 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
593 Property, plant and equipment, Beginning Balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
594 Additions other than through business combinations, property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
595 Increase (decrease) through other changes, property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
596 Disposals, property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
597 Depreciation, property, plant and equipment Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
598 Property, plant and equipment, Ending Balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
599 1078 - Disclosure - Property, Plant and Equipment (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/PropertyPlantAndEquipmentDetailsTextual
600 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
601 Income Statements Location [Axis] Axis cik0001364128:IncomeStatementsLocationAxis
602 Income Statements Location [Domain] Member cik0001364128:IncomeStatementsLocationDomain
603 Cost of Sales [Member] Member cik0001364128:CostOfSalessMember
604 General Expenses And Site Maintenance [Member] Member cik0001364128:GeneralExpensesAndSiteMaintenanceMember
605 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
606 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
607 Mining property [member] Member ifrs-full:MiningPropertyMember
608 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
609 Depreciation, property, plant and equipment Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
610 Depreciation expense Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
611 1079 - Disclosure - Mineral Properties (Details) Network

*

*

 http://www.alexcoresource.com/role/MineralPropertiesDetails
612 Disclosure of mineral properties [Table] Table

*

*

 cik0001364128:DisclosureOfMineralPropertiesTable
613 Name Of Project [Axis] Axis cik0001364128:NameOfProjectAxis
614 Name Of Project [Domain] Member cik0001364128:NameOfProjectDomain
615 Bellekeno [Member] Member cik0001364128:BellekenoMember
616 Lucky Queen [Member] Member cik0001364128:LuckyQueenMember
617 Onek [Member] Member cik0001364128:OnekMember
618 McQuesten [Member] Member cik0001364128:McquestenMember
619 Silver King [Member] Member cik0001364128:SilverKingMember
620 Flame And Moth [Member] Member cik0001364128:FlameAndMothMember
621 Bermingham [Member] Member cik0001364128:BerminghamMember
622 Elsa Tailings [Member] Member cik0001364128:ElsaTailingsMember
623 Other Keno Hill Properties [Member] Member cik0001364128:OtherKenoHillPropertiesMember
624 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
625 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
626 Mining property [member] Member ifrs-full:MiningPropertyMember
627 Disclosure of mineral properties [Line Items] LineItems cik0001364128:DisclosureOfMineralPropertiesLineItems
628 Mineral Properties, Beginning Balance Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
629 Mineral Properties, Expenditures Incurred Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
630 Mineral Properties, Ending Balance Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
631 1080 - Disclosure - Mineral Properties (Details 1) Network

*

*

 http://www.alexcoresource.com/role/MineralPropertiesDetails1
632 Disclosure of mineral properties [Table] Table

*

*

 cik0001364128:DisclosureOfMineralPropertiesTable
633 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
634 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
635 Exploration and Evaluation Properties [Member] Member cik0001364128:ExplorationAndEvaluationPropertiesMember
636 Mining Operations Properties [Member] Member cik0001364128:MiningOperationsPropertiesMember
637 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
638 Carrying amount [member] Member ifrs-full:CarryingAmountMember
639 Gross carrying amount [member] Member ifrs-full:GrossCarryingAmountMember
640 Accumulated depreciation and amortisation [member] Member ifrs-full:AccumulatedDepreciationAndAmortisationMember
641 Disclosure of mineral properties [Line Items] LineItems cik0001364128:DisclosureOfMineralPropertiesLineItems
642 Accumulated depletion and write-downs Concept (Monetary) For Period ifrs-full:WritedownsReversalsOfPropertyPlantAndEquipment
643 Assets arising from exploration for and evaluation of mineral resources Concept (Monetary) As Of Debit ifrs-full:AssetsArisingFromExplorationForAndEvaluationOfMineralResources
644 1081 - Disclosure - Mineral Properties (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/MineralPropertiesDetailsTextual
645 Disclosure of mineral properties [Table] Table

*

*

 cik0001364128:DisclosureOfMineralPropertiesTable
646 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
647 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
648 UKHM mineral rights [Member] Member cik0001364128:UkhmMineralRightsMember
649 Non-UKHM mineral rights [Member] Member cik0001364128:NonukhmMineralRightsMember
650 Range [Axis] Axis ifrs-full:RangeAxis
651 Ranges [member] Member ifrs-full:RangesMember
652 Top of range [member] Member ifrs-full:TopOfRangeMember
653 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
654 Name Of Project [Axis] Axis cik0001364128:NameOfProjectAxis
655 Name Of Project [Domain] Member cik0001364128:NameOfProjectDomain
656 McQuesten [Member] Member cik0001364128:McquestenMember
657 Other Keno Hill Properties [Member] Member cik0001364128:OtherKenoHillPropertiesMember
658 Unconsolidated structured entities controlled by investment entity [axis] Axis ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityAxis
659 Unconsolidated structured entities controlled by investment entity [member] Member ifrs-full:UnconsolidatedStructuredEntitiesControlledByInvestmentEntityMember
660 Banyan Gold corp [Member] Member cik0001364128:BanyanGoldCorpMember
661 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
662 Products and services [member] Member ifrs-full:ProductsAndServicesMember
663 Silver [Member] Member cik0001364128:SilverMember
664 Gold [Member] Member us-gaap:GoldMember
665 Disclosure of mineral properties [Line Items] LineItems cik0001364128:DisclosureOfMineralPropertiesLineItems
666 Smelter Return Royalty Percentage Concept (Percent) For Period cik0001364128:SmelterReturnRoyaltyPercentage
667 Royalty Expense Concept (Monetary) For Period Debit ifrs-full:RoyaltyExpense
668 Income arising from exploration for and evaluation of mineral resources Concept (Monetary) For Period Credit ifrs-full:IncomeArisingFromExplorationForAndEvaluationOfMineralResources
669 Royalty Expenses Paid Concept (Monetary) For Period Credit cik0001364128:RoyaltyExpensesPaid
670 Percentage Of Mineral Property Ownership Acquisition Concept (Percent) As Of cik0001364128:PercentageOfMineralPropertyOwnershipAcquisition
671 Percentage of ownership interest in property offerred Concept (Percent) As Of cik0001364128:PercentageOfOwnershipInterestInPropertyOfferred
672 Expense arising from exploration for and evaluation of mineral resources Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
673 Consideration receivable in the form of shares Concept (Shares) For Period cik0001364128:ConsiderationReceivableInFormOfShares
674 Total consideration receivable in cash or shares Concept (Monetary) For Period Debit cik0001364128:TotalConsiderationReceivableInCashOrShares
675 Value of treasury stock investment Concept (Monetary) For Period Debit cik0001364128:ValueOfTreasuryStockInvestment
676 1082 - Disclosure - Embedded Derivative Asset and Silver Stream (Details) Network

*

*

 http://www.alexcoresource.com/role/EmbeddedDerivativeAssetAndSilverStreamDetails
677 Implied Table Table

*

*

 implied:Table
678 Disclosure of Derivative Financial Instrument [Abstract] Abstract cik0001364128:DisclosureOfDerivativeFinancialInstrumentAbstract
679 Embedded derivative asset – Beginning of year Concept (Monetary) As Of Debit cik0001364128:EmbeddedDerivativeAsset
680 Embedded derivative asset - Addition Concept (Monetary) For Period Debit cik0001364128:AdjustmentsForIncreaseDecreaseInEmbeddedDerivativeAsset
681 Fair value adjustment Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives
682 Embedded derivative asset – End of year Concept (Monetary) As Of Debit cik0001364128:EmbeddedDerivativeAsset
683 1083 - Disclosure - Embedded Derivative Asset and Silver Stream (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/EmbeddedDerivativeAssetAndSilverStreamDetailsTextual
684 Statement [Table] Table

*

*

 us-gaap:StatementTable
685 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
686 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
687 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
688 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
689 Events Occurred After Reporting Period [Member] Member cik0001364128:EventsOccurredAfterReportingPeriodMember
690 Range [Axis] Axis ifrs-full:RangeAxis
691 Ranges [member] Member ifrs-full:RangesMember
692 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
693 Top of range [member] Member ifrs-full:TopOfRangeMember
694 Statement [Line Items] LineItems us-gaap:StatementLineItems
695 Percentage of Life of Mine Silver Concept (Percent) As Of cik0001364128:PercentageOfLifeOfMineSilver
696 Proceeds From Up-front Deposit Payments Concept (Monetary) For Period Debit cik0001364128:ProceedsFromUpfrontDepositPayments
697 Proceeds From Further Up-front Deposit Payments Concept (Monetary) For Period Debit cik0001364128:ProceedsFromFurtherUpfrontDepositPayments
698 Silver Purchase Agreement, initial Term Concept (xbrli:durationItemType) For Period cik0001364128:SilverPurchaseAgreementInitialTerm
699 Actual monthly production payment,upper ceiling grade Concept (Text/String) For Period cik0001364128:ActualMonthlyProductionPaymentupperCeilingGrade
700 Price of silver Concept (Per Unit) As Of cik0001364128:PriceOfSilver
701 Mine and mill Completion per day Concept (num:massItemType) As Of cik0001364128:MineAndMillCompletionPerDay
702 Reduction of mill throughput per day Concept (num:massItemType) As Of cik0001364128:ReductionOfMillThroughputPerDay
703 Number Of Shares Issued as a consideration to wheaton Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedAsConsiderationToWheaton
704 Value Of Shares Issued as a consideration to wheaton Concept (Monetary) For Period Credit cik0001364128:ValueOfSharesIssuedAsConsiderationToWheaton
705 Up front deposit amount Concept (Monetary) As Of Credit cik0001364128:UpFrontDepositAmount
706 Percentage Of Interest Representing Future Production Concept (Percent) For Period cik0001364128:PercentageOfInterestRepresentingFutureProduction
707 Production payment per ounce Concept (Per Unit) For Period cik0001364128:ProductionPaymentPerOunce
708 Obligation to pay capacity related refund Concept (Monetary) As Of Credit cik0001364128:ObligationToPayCapacityRelatedRefund
709 Repayment Of Original Deposit Concept (Monetary) For Period Credit cik0001364128:RepaymentOfOriginalDeposit
710 1084 - Disclosure - Accounts payable and accrued liabilities (Details) Network

*

*

 http://www.alexcoresource.com/role/AccountsPayableAndAccruedLiabilitiesDetails
711 Implied Table Table

*

*

 implied:Table
712 Accounts Payables And Accrued Liabilities [Abstract] Abstract cik0001364128:AccountsPayablesAndAccruedLiabilitiesAbstract
713 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
714 Accrued liabilities and other Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsCurrent
715 Trade and other current payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
716 1085 - Disclosure - Credit Facility (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/CreditFacilityDetailsTextual
717 Statement [Table] Table

*

*

 us-gaap:StatementTable
718 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
719 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
720 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
721 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
722 Subsequent Events [Member] Member cik0001364128:SubsequentEventsMember
723 Maturity [axis] Axis ifrs-full:MaturityAxis
724 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
725 Later than one year [member] Member ifrs-full:LaterThanOneYearMember
726 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
727 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
728 Loans to corporate entities [member] Member ifrs-full:CorporateLoansMember
729 Types of interest rates [axis] Axis ifrs-full:TypesOfInterestRatesAxis
730 Interest rate types [member] Member ifrs-full:InterestRateTypesMember
731 Floating interest rate [member] Member ifrs-full:FloatingInterestRateMember
732 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
733 Equity [Member] Member ifrs-full:EquityMember
734 Warrants [Member] Member cik0001364128:WarrantsMember
735 Statement [Line Items] LineItems us-gaap:StatementLineItems
736 Notional amount Concept (Monetary) As Of ifrs-full:NotionalAmount
737 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
738 Borrowings maturity term Concept (xbrli:durationItemType) For Period cik0001364128:BorrowingsMaturityTerm
739 Borrowings, maturity Concept (Text/String) For Period ifrs-full:BorrowingsMaturity
740 Borrowings, interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
741 Rate of charge on funds drawn Concept (Percent) For Period cik0001364128:RateOfChargeOnFundsDrawn
742 Libor rate Concept (Percent) For Period cik0001364128:LiborRate
743 Description of maximum term of options granted for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfMaximumTermOfOptionsGrantedForSharebasedPaymentArrangement
744 Borrowings Maturity Date Concept (Date) For Period cik0001364128:BorrowingsMaturityDate
745 Warrant Exercise Price Per Share Concept (Share) For Period cik0001364128:WarrantExercisePricePerShare
746 Warrant Closing Price Per Share Concept (Share) For Period cik0001364128:WarrantClosingPricePerShare
747 1086 - Disclosure - Decommissioning and Rehabilitation Provision (Details) Network

*

*

 http://www.alexcoresource.com/role/DecommissioningAndRehabilitationProvisionDetails
748 Implied Table Table

*

*

 implied:Table
749 Provision for decommissioning, restoration and rehabilitation costs [abstract] Abstract ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsAbstract
750 Balance - beginning of year Concept (Monetary) As Of Credit ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCosts
751 Increase due to re-estimation Concept (Monetary) For Period Credit cik0001364128:DecreaseIncreaseDueToReestimation
752 Accretion expense, included in finance costs Concept (Monetary) For Period Debit cik0001364128:AccretionExpenseRelatingToDecommissionnigAndRehabilition
753 Balance - end of year Concept (Monetary) As Of Credit ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCosts
754 1087 - Disclosure - Decommissioning and Rehabilitation Provision (Details Textual) Network

*

*

 http://www.alexcoresource.com/role/DecommissioningAndRehabilitationProvisionDetailsTextual
755 Disclosure of decommissioning and rehabilitation provision [Table] Table

*

*

 cik0001364128:DisclosureOfDecommissioningAndRehabilitationProvisionTable
756 Classes of intangible assets other than goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsOtherThanGoodwillAxis
757 Intangible assets other than goodwill [member] Member ifrs-full:IntangibleAssetsOtherThanGoodwillMember
758 Disclosure of decommissioning and rehabilitation provision [Line Items] LineItems cik0001364128:DisclosureOfDecommissioningAndRehabilitationProvisionLineItems
759 Discount rate used in current estimate of value in use Concept (Percent) As Of ifrs-full:DescriptionOfDiscountRatesUsedInCurrentEstimateOfValueInUse
760 Actuarial assumption of expected rates of inflation Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfInflation
761 Non-current provision for decommissioning, restoration and rehabilitation costs Concept (Monetary) As Of Credit ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts
762 Expenditures to be incurred over certain years Concept (xbrli:durationItemType) For Period cik0001364128:ExpendituresToBeIncurredOverCertainYears
763 Provision for decommissioning, restoration and rehabilitation costs Concept (Monetary) As Of Credit ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCosts
764 1088 - Disclosure - Capital and Reserves (Details) Network

*

*

 http://www.alexcoresource.com/role/CapitalAndReservesDetails
765 Capital and reserves [Table] Table

*

*

 cik0001364128:CapitalAndReservesTable
766 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
767 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
768 Warrants [Member] Member cik0001364128:WarrantsMember
769 Expiration date [Axis] Axis cik0001364128:ExpirationDateAxis
770 Expiration date [Domain] Member cik0001364128:ExpirationDateDomain
771 Expiry Date, May 17, 2018 Member cik0001364128:ExpirationDateTwoMember
772 Expiry Date, May 30, 2019 Member cik0001364128:ExpirationDateThreeMember
773 Expiry Date, Feb 23, 2023 Member cik0001364128:ExpirationDateFourMember
774 Expiry Date, May 17, 2018 Member cik0001364128:ExpirationDateOneMember
775 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
776 Exercise Price Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement
777 Balance at December 31, 2017 Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
778 Issued Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
779 Exercised Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
780 Expired Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
781 Balance at December 31, 2018 Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
782 1089 - Disclosure - Capital and Reserves (Details 1) Network

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*

 http://www.alexcoresource.com/role/CapitalAndReservesDetails1
783 Capital and reserves [Table] Table

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 cik0001364128:CapitalAndReservesTable
784 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
785 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
786 Incentive Stock Options [Member] Member cik0001364128:IncentiveStockOptionsMember
787 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
788 Weighted average exercise price - Balance Opening Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
789 Weighted average exercise price - stock options granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
790 Weighted average exercise price - options exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
791 Weighted average exercise price - options forfeited or expired Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
792 Weighted average exercise price - Balance Ending Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
793 Number of shares issued or issuable on exercise - Balance Opening (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
794 Number of shares issued or issuable on exercise - Stock options granted (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
795 Number of shares issued or issuable on exercise - Options exercised (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
796 Number of shares issued or issuable on exercise - Options forfeited or expired (in shares) Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
797 Number of shares issued or issuable on exercise - Balance End (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
798 Opening Balance Concept (Monetary) As Of Credit cik0001364128:ValueOfOutstandingSharesOptions
799 Balance - Stock options granted Concept (Monetary) For Period Credit cik0001364128:ValueOfShareOptionGrantsInPeriodInShareBasedArrangemnt
800 Balance - Share based compensation expense Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
801 Balance - Options exercised Concept (Monetary) For Period Debit cik0001364128:ValueOfShareOptionExercisedInShareBasedArrangement
802 Balance - Options forfeited or expired Concept (Monetary) For Period Debit cik0001364128:ValueOfShareOptionForfeitedInShareBasedArrangement
803 Ending Balance Concept (Monetary) As Of Credit cik0001364128:ValueOfOutstandingSharesOptions
804 1090 - Disclosure - Capital and Reserves (Details 2) Network

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 http://www.alexcoresource.com/role/CapitalAndReservesDetails2
805 Capital and reserves [Table] Table

*

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 cik0001364128:CapitalAndReservesTable
806 Exercise price [Axis] Axis cik0001364128:ExercisePriceAxis
807 Exercise price [Domain] Member cik0001364128:ExercisePriceDomain
808 Exercise Price - 0.60 [Member] Member cik0001364128:ExercisePriceOneMember
809 Exercise Price - 0.60 [Member] Member cik0001364128:ExercisePriceTwoMember
810 Exercise Price - 0.84 [Member] Member cik0001364128:ExercisePriceThreeMember
811 Exercise Price - 1.73 [Member] Member cik0001364128:ExercisePriceFourMember
812 Exercise Price - 1.75 [Member] Member cik0001364128:ExercisePriceFiveMember
813 Exercise Price - 1.78 [Member] Member cik0001364128:ExercisePriceSixMember
814 Exercise Price - 1.93 [Member] Member cik0001364128:ExercisePriceSevenMember
815 Exercise Price - 1.94 [Member] Member cik0001364128:ExercisePriceEightMember
816 Exercise Price - 2.07 [Member] Member cik0001364128:ExercisePriceNineMember
817 Exercise Price - 2.07 [Member] Member cik0001364128:ExercisePriceTenMember
818 Exercise Price - 2.32 [Member] Member cik0001364128:ExercisePriceElevenMember
819 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
820 Options Outstanding, Number of Shares Issuable on Exercise Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
821 Options Outstanding, Average Remaining Life (Years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
822 Options Outstanding, Average Exercise Price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
823 Options Exercisable, Number of Shares Issuable on Exercise Concept (Decimal) As Of ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement
824 Options Exercisable, Average Exercise Price Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement
825 1091 - Disclosure - Capital and Reserves (Details 3) Network

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*

 http://www.alexcoresource.com/role/CapitalAndReservesDetails3
826 Capital and reserves [Table] Table

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*

 cik0001364128:CapitalAndReservesTable
827 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
828 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
829 Restricted Share Units [Member] Member cik0001364128:RestrictedShareUnitsMember
830 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
831 Balance at December 31, 2017 Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
832 RSUs granted Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
833 RSUs vested Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
834 Balance at December 31, 2018 Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
835 Opening Balance Concept (Monetary) As Of Credit cik0001364128:ValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
836 RSUs granted Concept (Monetary) For Period Credit cik0001364128:ValueOfOtherEquityInstrumentsGrantedInSharebasedPaymentArrangement
837 Share-based compensation expense recognized Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
838 RSUs vested Concept (Monetary) For Period Credit cik0001364128:ValueOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
839 Ending Balance Concept (Monetary) As Of Credit cik0001364128:ValueOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
840 1092 - Disclosure - Capital and Reserves (Details Textual) Network

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*

 http://www.alexcoresource.com/role/CapitalAndReservesDetailsTextual
841 Capital and reserves [Table] Table

*

*

 cik0001364128:CapitalAndReservesTable
842 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
843 Equity [Member] Member ifrs-full:EquityMember
844 Warrant [Member] Member us-gaap:WarrantMember
845 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
846 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
847 Incentive Stock Options [Member] Member cik0001364128:IncentiveStockOptionsMember
848 Restricted Share Units [Member] Member cik0001364128:RestrictedShareUnitsMember
849 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
850 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
851 Events Occurred After Reporting Period [Member] Member cik0001364128:EventsOccurredAfterReportingPeriodMember
852 Statement of income [Axis] Axis cik0001364128:StatementOfIncomeAxis
853 Statement of income [Domain] Member cik0001364128:StatementOfIncomeDomain
854 General and administrative expenses [Member] Member cik0001364128:GeneralAndAdministrativeExpensesMember
855 Charged to Income [Member] Member cik0001364128:ChargedToIncomeMember
856 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
857 Property, Plant and Equipment [Member] Member ifrs-full:PropertyPlantAndEquipmentMember
858 Mining property [member] Member ifrs-full:MiningPropertyMember
859 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
860 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
861 Ordinary shares [member] Member ifrs-full:OrdinarySharesMember
862 Range [Axis] Axis ifrs-full:RangeAxis
863 Ranges [member] Member ifrs-full:RangesMember
864 Top of range [member] Member ifrs-full:TopOfRangeMember
865 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
866 Counterparties [axis] Axis ifrs-full:CounterpartiesAxis
867 Counterparties [member] Member ifrs-full:CounterpartiesMember
868 Sprott Private Resource Lending [Member] Member cik0001364128:SprottPrivateResourceLendingMember
869 Capital and reserves [Line Items] LineItems cik0001364128:CapitalAndReservesLineItems
870 Number of shares issued Concept (Shares) As Of ifrs-full:NumberOfSharesIssued
871 Proceeds from issuing shares Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
872 Par value per share Concept (Share) As Of ifrs-full:ParValuePerShare
873 Warrants exercise price per share Concept (Share) As Of cik0001364128:WarrantsExercisePricePerShare
874 Share issue related cost Concept (Monetary) For Period Debit ifrs-full:ShareIssueRelatedCost
875 Number of share options exercised in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
876 Proceeds from exercise of options Concept (Monetary) For Period Debit ifrs-full:ProceedsFromExerciseOfOptions
877 Number of other equity instruments exercised or vested in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
878 Proceeds from exercise of warrants Concept (Monetary) For Period Debit cik0001364128:ProceedsFromExerciseOfWarrants
879 Number of shares issued for release of RSU settlement shares Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForReleaseOfRsuSettlementShares
880 Value of shares and warrants authorised Concept (Monetary) As Of Credit cik0001364128:ValueOfSharesAndWarrantsAuthorised
881 Risk free interest rate, share options granted Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
882 Expected volatility, share options granted Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
883 Number of share options outstanding in share-based payment arrangement Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
884 Number of other equity instruments outstanding in share-based payment arrangement Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
885 Number of options available for future grants Concept (Shares) As Of cik0001364128:NumberOfOptionsAvailableForFutureGrants
886 Description of vesting requirements for share-based payment arrangement Concept (Text/String) For Period ifrs-full:DescriptionOfVestingRequirementsForSharebasedPaymentArrangement
887 Option life, share options granted (Years) Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
888 Expected forfeiture rate, share options forfeited Concept (Percent) For Period cik0001364128:ExpectedForfeitureRateShareOptionsForfeited
889 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
890 Expense from share-based payment transactions with employees Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
891 Number of share options granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
892 Weighted average exercise price of share options granted in share-based payment arrangement Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
893 Number of other equity instruments granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
894 Weighted average fair value at measurement date, other equity instruments granted Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
895 Number of shares issued for exercise of warrants Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForExerciseOfWarrants
896 Number Of Shares Issued as a consideration to wheaton Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedAsConsiderationToWheaton
897 Number of shares issued for advisory fees Concept (Shares) For Period cik0001364128:NumberOfSharesIssuedForAdvisoryFees
898 1093 - Disclosure - Revenue from Environmental Services (Details) Network

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*

 http://www.alexcoresource.com/role/RevenueFromEnvironmentalServicesDetails
899 Statement [Table] Table

*

*

 us-gaap:StatementTable
900 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
901 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
902 Expense By Nature [Axis] Axis cik0001364128:ExpenseByNatureAxis
903 Expense By Nature [Domain] Member cik0001364128:ExpenseByNatureDomain
904 Environmental Services [Member] Member cik0001364128:EnvironmentalServicesMember
905 Types of contracts [axis] Axis ifrs-full:TypesOfContractsAxis
906 Types of contracts [member] Member ifrs-full:TypesOfContractsMember
907 Fixed-price contracts [member] Member ifrs-full:FixedpriceContractsMember
908 Statement [Line Items] LineItems us-gaap:StatementLineItems
909 Fee for service Concept (Monetary) For Period Credit cik0001364128:FeeForService
910 Fixed price agreements Concept (Monetary) For Period Credit cik0001364128:RevenueFromFixedPriceAgreements
911 Revenue from rendering of services Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
912 1094 - Disclosure - General and Administrative Expenses by Nature of Expense (Details) Network

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*

 http://www.alexcoresource.com/role/GeneralAndAdministrativeExpensesByNatureOfExpenseDetails
913 Schedule Of General And Administrative Expenses [Table] Table

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*

 cik0001364128:ScheduleOfGeneralAndAdministrativeExpensesTable
914 Expense By Nature [Axis] Axis cik0001364128:ExpenseByNatureAxis
915 Expense By Nature [Domain] Member cik0001364128:ExpenseByNatureDomain
916 Corporate Level [Member] Member cik0001364128:CorporateLevelMember
917 Environmental Services [Member] Member cik0001364128:EnvironmentalServicesMember
918 Genral And Administrative Expenses [Line Items] LineItems cik0001364128:GenralAndAdministrativeExpensesLineItems
919 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationExpense
920 Amortization of intangible assets Concept (Monetary) For Period Debit ifrs-full:AmortisationExpense
921 Business development and investor relations Concept (Monetary) For Period Debit ifrs-full:OtherExpenseByNature
922 Office, operating and non-operating overheads Concept (Monetary) For Period Debit ifrs-full:OperatingExpense
923 Professional Concept (Monetary) For Period Debit ifrs-full:ProfessionalFeesExpense
924 Regulatory Concept (Monetary) For Period Debit ifrs-full:BankAndSimilarCharges
925 Restructuring costs Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
926 Salaries and contractors Concept (Monetary) For Period Debit ifrs-full:EmployeeBenefitsExpense
927 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
928 Travel Concept (Monetary) For Period Debit ifrs-full:TravelExpense
929 Expenses, by nature Concept (Monetary) For Period Debit ifrs-full:ExpenseByNature
930 Total General and Administrative Expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
931 1095 - Disclosure - Mine Site Care and Maintenance (Details) Network

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*

 http://www.alexcoresource.com/role/MineSiteCareAndMaintenanceDetails
932 Schedule of mine site care and maintenance expenses [Table] Table

*

*

 cik0001364128:ScheduleOfMineSiteCareAndMaintenanceExpensesTable
933 Income Statements Location [Axis] Axis cik0001364128:IncomeStatementsLocationAxis
934 Income Statements Location [Domain] Member cik0001364128:IncomeStatementsLocationDomain
935 Depreciation [Member] Member cik0001364128:DepreciationMember
936 Other expenses [Member] Member cik0001364128:OtherExpensesMember
937 Materials and Equipment [Member] Member cik0001364128:MaterialsAndEquipmentMember
938 Salaries And Contractors [Member] Member cik0001364128:SalariesAndContractorsMember
939 Schedule of mine site care and maintenance expenses [Line Items] LineItems cik0001364128:ScheduleOfMineSiteCareAndMaintenanceExpensesLineItems
940 Repairs and maintenance expense Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
941 1096 - Disclosure - Other Income and expenses (Detail) Network

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*

 http://www.alexcoresource.com/role/OtherIncomeAndExpensesDetail
942 Statement [Table] Table

*

*

 us-gaap:StatementTable
943 Class of Stock [Axis] Axis us-gaap:StatementClassOfStockAxis
944 Class of Stock [Domain] Member us-gaap:ClassOfStockDomain
945 Statement [Line Items] LineItems us-gaap:StatementLineItems
946 Credit Facility fee – warrants Concept (Monetary) For Period Credit ifrs-full:FeeAndCommissionIncomeExpense
947 Interest income Concept (Monetary) For Period Credit ifrs-full:RevenueFromInterest
948 Foreign exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
949 Other income (expenses) Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
950 Other finance income (cost) Concept (Monetary) For Period Credit ifrs-full:OtherFinanceIncomeCost
951 1097 - Disclosure - Income Tax Expense (Details) Network

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 http://www.alexcoresource.com/role/IncomeTaxExpenseDetails
952 Implied Table Table

*

*

 implied:Table
953 Disclosure of income tax [Abstract] Abstract cik0001364128:DisclosureOfIncomeTaxAbstract
954 Accounting loss before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
955 Federal and provincial income tax rate of 27% (2017 – 26%) Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
956 Non-deductible permanent differences Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
957 Differences in foreign exchange rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
958 Effect of difference in tax rates Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
959 Change in deferred tax asset not recognized Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset
960 Flow-through share renunciation Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome
961 Change in estimate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeRelatingToChangesInAccountingPoliciesAndErrorsIncludedInProfitOrLoss
962 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
963 Income Tax Provision Recovery Adjustments Concept (Monetary) For Period Debit cik0001364128:IncomeTaxProvisionRecoveryAdjustments
964 Income tax provision Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
965 1098 - Disclosure - Income Tax Expense (Details) [Parenthetical] Network

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 http://www.alexcoresource.com/role/IncomeTaxExpenseDetailsParenthetical
966 Implied Table Table

*

*

 implied:Table
967 Disclosure of income tax [Abstract] Abstract cik0001364128:DisclosureOfIncomeTaxAbstract
968 Applicable tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
969 1099 - Disclosure - Income Tax Expense (Details 1) Network

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 http://www.alexcoresource.com/role/IncomeTaxExpenseDetails1
970 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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*

 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
971 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
972 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
973 Mineral Property Interest [Member] Member cik0001364128:MineralPropertyInterestMember
974 Inventory [Member] Member cik0001364128:InventoryMember
975 Property, Plant And Equipments [Member] Member cik0001364128:PropertyPlantAndEquipmentsMember
976 Other [member] Member ifrs-full:OtherTemporaryDifferencesMember
977 Loss Carryforward [Member] Member cik0001364128:LossCarryforwardMember
978 Decommissioning and Rehabilitation Provision [member] Member ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember
979 Class Of Financial Items [Axis] Axis cik0001364128:ClassOfFinancialItemsAxis
980 Class Of Financial Items [Domain] Member cik0001364128:ClassOfFinancialItemsDomain
981 Deferred Tax Liabilities [Member] Member cik0001364128:DeferredTaxLiabilitiesMember
982 Deferred Tax Assets [Member] Member cik0001364128:DeferredTaxAssetsMember
983 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
984 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
985 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
986 Credited (charged) to the income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
987 Charged to OCI Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
988 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
989 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssets
990 1100 - Disclosure - Income Tax Expense (Details 2) Network

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 http://www.alexcoresource.com/role/IncomeTaxExpenseDetails2
991 Implied Table Table

*

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 implied:Table
992 Disclosure of income tax [Abstract] Abstract cik0001364128:DisclosureOfIncomeTaxAbstract
993 Tax loss carry forwards Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
994 Mineral property interest Concept (Monetary) As Of Credit cik0001364128:UnrecognisedTaxBenefitsResultingFromMineralPropertyInterest
995 Other Concept (Monetary) As Of Credit cik0001364128:UnrecognisedTaxBenefitsResultingFromOther
996 Unrecognised Tax Benefit Concept (Monetary) As Of Credit cik0001364128:UnrecognisedTaxBenefit
997 1101 - Disclosure - Income Tax Expense (Details 3) Network

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 http://www.alexcoresource.com/role/IncomeTaxExpenseDetails3
998 Schedule Of Deferred Tax Assets And Liabilities [Table] Table

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 cik0001364128:ScheduleOfDeferredTaxAssetsAndLiabilitiesTable
999 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
1000 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
1001 Canada [Member] Member cik0001364128:CanadaMember
1002 Expiration Year [Axis] Axis cik0001364128:ExpirationYearAxis
1003 Expiration Year [Domain] Member cik0001364128:ExpirationYearDomain
1004 2033 Member cik0001364128:ExpirationYear2033Member
1005 2034 Member cik0001364128:ExpirationYear2034Member
1006 2035 Member cik0001364128:ExpirationYear2035Member
1007 2036 Member cik0001364128:ExpirationYear2036Member
1008 2037 Member cik0001364128:Expirationyear2037Member
1009 2038 Member cik0001364128:ExpirationYear2038Member
1010 Schedule Of Deferred Tax Assets And Liabilities [Line Items] LineItems cik0001364128:ScheduleOfDeferredTaxAssetsAndLiabilitiesLineItems
1011 Unused tax losses for which no deferred tax asset recognised Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1012 1102 - Disclosure - Financial Instruments (Details) Network

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*

 http://www.alexcoresource.com/role/FinancialInstrumentsDetails
1013 Implied Table Table

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 implied:Table
1014 Disclosure of Financial Instrument [Abstract] Abstract cik0001364128:DisclosureOfFinancialInstrumentAbstract
1015 Fair value through profit or loss Warrants held-for-trading Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLoss
1016 Embedded derivative asset Concept (Monetary) As Of Debit cik0001364128:EmbeddedDerivativeAsset
1017 Available-for-sale Investment in marketable securities Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsAvailableforsale
1018 Financial assets Concept (Monetary) As Of Debit ifrs-full:FinancialAssets
1019 1103 - Disclosure - Financial Instruments (Details 1) Network

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*

 http://www.alexcoresource.com/role/FinancialInstrumentsDetails1
1020 Disclosure of internal credit grades [table] Table

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 ifrs-full:DisclosureOfInternalCreditExposuresTable
1021 Classes of financial assets [axis] Axis ifrs-full:ClassesOfFinancialAssetsAxis
1022 Financial assets, class [member] Member ifrs-full:FinancialAssetsMember
1023 Accounts and other receivable [Member] Member ifrs-full:TradeReceivablesMember
1024 Cash and Cash Equivalents [Member] Member cik0001364128:CashAndCashEquivalentesMember
1025 Classes of financial liabilities [axis] Axis ifrs-full:ClassesOfFinancialLiabilitiesAxis
1026 Financial liabilities, class [member] Member ifrs-full:FinancialLiabilitiesMember
1027 Accounts Payable and Accrued Liabilities [Member] Member cik0001364128:AccountsPayableAndAccruedsLiabilitiesMember
1028 Disclosure of internal credit grades [line items] LineItems ifrs-full:DisclosureOfInternalCreditExposuresLineItems
1029 Cash and demand deposits Concept (Monetary) As Of ifrs-full:CreditExposure
1030 1104 - Disclosure - Financial Instruments (Details 2) Network

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 http://www.alexcoresource.com/role/FinancialInstrumentsDetails2
1031 Disclosure of credit risk exposure [table] Table

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 ifrs-full:DisclosureOfCreditRiskExposureTable
1032 Classes of financial instruments [axis] Axis ifrs-full:ClassesOfFinancialInstrumentsAxis
1033 Financial instruments, class [member] Member ifrs-full:ClassesOfFinancialInstrumentsMember
1034 Cash [Member] Member cik0001364128:CashsMember
1035 Demand Deposits [Member] Member cik0001364128:DemandDepositMember
1036 Term Deposits [Member] Member cik0001364128:TermDepositsMember
1037 Trade receivables, net of provision [Member] Member ifrs-full:TradeReceivablesMember
1038 Past due status [axis] Axis ifrs-full:PastDueStatusAxis
1039 Past due status [member] Member ifrs-full:PastDueStatusMember
1040 Currently due [Member] Member ifrs-full:CurrentMember
1041 Past due by 90 days or less, not impaired [Member] Member ifrs-full:LaterThanTwoMonthsAndNotLaterThanThreeMonthsMember
1042 Past due by greater than 90 days, not impaired [Member] Member ifrs-full:LaterThanThreeMonthsMember
1043 Disclosure of credit risk exposure [line items] LineItems ifrs-full:DisclosureOfCreditRiskExposureLineItems
1044 Maximum exposure to credit risk Concept (Monetary) As Of ifrs-full:MaximumExposureToCreditRisk
1045 1105 - Disclosure - Financial Instruments (Details 3) Network

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1046 Disclosure of maturity analysis for non-derivative financial liabilities [table] Table

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1047 Maturity [axis] Axis ifrs-full:MaturityAxis
1048 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1049 Within 90 days or less [Member] Member ifrs-full:NotLaterThanThreeMonthsMember
1050 In later than 90 days, not later than one year [Member] Member ifrs-full:LaterThanThreeMonthsAndNotLaterThanOneYearMember
1051 Disclosure of maturity analysis for non-derivative financial liabilities [line items] LineItems ifrs-full:DisclosureOfMaturityAnalysisForNonderivativeFinancialLiabilitiesLineItems
1052 Trade and other payables, undiscounted cash flows Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesUndiscountedCashFlows
1053 1106 - Disclosure - Financial Instruments (Details Textual) Network

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1054 Disclosure of Financial Instruments [Table] Table

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1055 Valuation techniques used in fair value measurement [axis] Axis ifrs-full:ValuationTechniquesUsedInFairValueMeasurementAxis
1056 Valuation techniques [member] Member ifrs-full:ValuationTechniquesMember
1057 Option pricing model [member] Member ifrs-full:OptionPricingModelMember
1058 Range [Axis] Axis ifrs-full:RangeAxis
1059 Ranges [member] Member ifrs-full:RangesMember
1060 Top of range [member] Member ifrs-full:TopOfRangeMember
1061 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1062 Disclosure of Financial Instruments [Line Items] LineItems cik0001364128:DisclosureOfFinancialInstrumentLineItems
1063 Expected Life, Significant Unabservable Input Assets Concept (xbrli:durationItemType) For Period cik0001364128:ExpectedLifeSignificantUnabservableInputAssets
1064 Interest rate, significant unobservable inputs, assets Concept (Percent) For Period ifrs-full:InterestRateSignificantUnobservableInputsAssets
1065 Historical volatility for shares, significant unobservable inputs, assets Concept (Percent) For Period ifrs-full:HistoricalVolatilityForSharesSignificantUnobservableInputsAssets
1066 Increase in fair value measurement due to change in one or more unobservable inputs to reflect reasonably possible alternative assumptions, assets Concept (Monetary) For Period Debit ifrs-full:IncreaseInFairValueMeasurementDueToChangeInOneOrMoreUnobservableInputsToReflectReasonablyPossibleAlternativeAssumptionsAssets
1067 Percentage of depreciation or appreciation of foreign exchange Concept (Percent) For Period cik0001364128:PercentageOfDepreciationOrAppreciationOfForeignExchange
1068 Fair Value Of Embedded Derivative Concept (Monetary) As Of Debit cik0001364128:FairValueOfEmbeddedDerivative
1069 1107 - Disclosure - Supplemental Cash Flow Information (Details) Network

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1070 Implied Table Table

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1071 Cash flows from (used in) operating activities [abstract] Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
1072 Interest received Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidRefundClassifiedAsOperatingActivities
1073 Non-Cash Investing and Financing Transactions Abstract cik0001364128:NoncashInvestingAndFinancingTransactionsAbstract
1074 Capitalization of share-based compensation to mineral properties Concept (Monetary) For Period Debit cik0001364128:CapitalizationOfSharebasedCompensationToMineralProperties
1075 Capitalization of depreciation to mineral properties Concept (Monetary) For Period Debit cik0001364128:CapitalizationOfDepreciationToMineralProperties
1076 Capitalization of re-estimation of decommissioning and rehabilitation provision Concept (Monetary) For Period Debit cik0001364128:CapitalizationOfReestimationOfDecommissioningAndRehabilationProvision
1077 Issuance of shares related to acquistion of subsidiary Concept (Monetary) For Period Credit cik0001364128:StockIssuedDuringPeriodValueIssuedForAcquisitionOfContango
1078 Increase in non-cash working capital related to: Abstract cik0001364128:IncreaseDecreaseInNoncashWorkingCapitalRelatedToAbstract
1079 Mining operations properties Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
1080 Exploration and evaluation properties Concept (Monetary) For Period Credit cik0001364128:NoncashExplorationAndEvaluationPropertiesExpense
1081 1108 - Disclosure - Segmented Information (Details) Network

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1082 Disclosure of operating segments [table] Table

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1083 Customer [Axis] Axis ifrs-full:MajorCustomersAxis
1084 Customers [member] Member ifrs-full:MajorCustomersMember
1085 Canadian [Member] Member cik0001364128:CanadianMember
1086 Non-Canadian [Member] Member cik0001364128:NoncanadianMember
1087 Segments [axis] Axis ifrs-full:SegmentsAxis
1088 Segments [member] Member ifrs-full:SegmentsMember
1089 Environmental Services [Member] Member cik0001364128:EnvironmentalServiceMember
1090 Mining [Member] Member cik0001364128:MiningMember
1091 Corporate And Other [Member] Member cik0001364128:CorporateAndOthersMember
1092 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1093 Total revenues as reported Concept (Monetary) For Period Credit ifrs-full:RevenueFromRenderingOfServices
1094 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
1095 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1096 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
1097 Other G&A expenses Concept (Monetary) For Period Debit cik0001364128:OtherGeneralAdministrativeExpenses
1098 Mine site care and maintenance Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
1099 Restructuring Costs Concept (Monetary) For Period Debit ifrs-full:ExpenseOfRestructuringActivities
1100 Foreign exchange (gain) loss Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
1101 Gain (Loss) on investments Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnDisposalsOfInvestments
1102 Gain on derivative asset Concept (Monetary) For Period Credit ifrs-full:GainsOnChangeInFairValueOfDerivatives
1103 Other (income) loss Concept (Monetary) For Period Credit ifrs-full:OtherGainsLosses
1104 Segment income (loss) before taxes Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
1105 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
1106 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
1107 1109 - Disclosure - Segmented Information (Details Textual) Network

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1108 Disclosure of operating segments [table] Table

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1109 Customer [Axis] Axis ifrs-full:MajorCustomersAxis
1110 Customers [member] Member ifrs-full:MajorCustomersMember
1111 Three Customers [Member] Member cik0001364128:ThreeCusomersMember
1112 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1113 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1114 1110 - Disclosure - Related Party Transactions (Details) Network

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1115 Disclosure of transactions between related parties [table] Table

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1116 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1117 Entity's total for related parties [member] Member ifrs-full:EntitysTotalForRelatedPartiesMember
1118 Related parties [member] Member ifrs-full:RelatedPartiesMember
1119 Disclosure of transactions between related parties [line items] LineItems ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems
1120 Salaries and other short-term benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1121 Share-based compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1122 Key management personnel compensation Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1123 1111 - Disclosure - Commitments (Details) Network

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1124 Disclosure of finance lease and operating lease by lessee [table] Table

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1125 Maturity [axis] Axis ifrs-full:MaturityAxis
1126 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1127 2019 Member ifrs-full:NotLaterThanOneYearMember
1128 2020 Member cik0001364128:LaterThanOneYearAndNotLaterThanTwoYearMember
1129 Thereafter Member cik0001364128:ThereafterMember
1130 2021 Member ifrs-full:LaterThanOneYearAndNotLaterThanThreeYearsMember
1131 2022 Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1132 2023 Member ifrs-full:LaterThanFourYearsAndNotLaterThanFiveYearsMember
1133 Disclosure of finance lease and operating lease by lessee [line items] LineItems ifrs-full:DisclosureOfFinanceLeaseAndOperatingLeaseByLesseeLineItems
1134 Minimum finance lease payments payable Concept (Monetary) As Of Credit ifrs-full:MinimumFinanceLeasePaymentsPayable
1135 1112 - Disclosure - Commitments (Details Textual) Network

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1136 Disclosure Of Commitments And Contingencies [Table] Table

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1137 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
1138 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
1139 Subsequent Events [Member] Member cik0001364128:SubsequentEventsMember
1140 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1141 Equity [Member] Member ifrs-full:EquityMember
1142 Flow-through common stock[] [Member] Member cik0001364128:FlowthroughCommonStockmemberMember
1143 Disclosure Of Commitments And Contingencies [Line Items] LineItems cik0001364128:DisclosureOfCommitmentsAndContingenciesLineItems
1144 Contractual capital commitments Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1145 Payments for exploration and evaluation expenses Concept (Monetary) For Period Credit ifrs-full:PaymentsForExplorationAndEvaluationExpenses

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