| Line |
Label |
Object Class |
Period Type |
Balance |
Report ElementName |
| 1 |
0001000 - Document - Document and Entity Information Document |
Network |
* |
* |
http://www.alamosgold.com/role/DocumentAndEntityInformationDocument |
| 2 |
Implied Table |
Table |
* |
* |
implied:Table |
| 3 |
Document and Entity Information [Abstract] |
Abstract |
|
|
agi:DocumentandEntityInformationAbstract |
| 4 |
Entity Registrant Name |
Concept (Text/String) |
For Period |
|
dei:EntityRegistrantName |
| 5 |
Entity Central Index Key |
Concept (CIK Number) |
For Period |
|
dei:EntityCentralIndexKey |
| 6 |
Document Type |
Concept (Submission Type) |
For Period |
|
dei:DocumentType |
| 7 |
Current Fiscal Year End Date |
Concept (Month/Day) |
For Period |
|
dei:CurrentFiscalYearEndDate |
| 8 |
Document Fiscal Year Focus |
Concept (Year) |
For Period |
|
dei:DocumentFiscalYearFocus |
| 9 |
Document Fiscal Period Focus |
Concept (Fiscal Period) |
For Period |
|
dei:DocumentFiscalPeriodFocus |
| 10 |
Amendment Flag |
Concept (Yes/No) |
For Period |
|
dei:AmendmentFlag |
| 11 |
Document Period End Date |
Concept (Date) |
For Period |
|
dei:DocumentPeriodEndDate |
| 12 |
Entity Common Stock, Shares Outstanding |
Concept (Shares) |
As Of |
|
dei:EntityCommonStockSharesOutstanding |
| 13 |
Entity Current Reporting Status |
Concept (Yes/No) |
For Period |
|
dei:EntityCurrentReportingStatus |
| 14 |
Entity Emerging Growth Company |
Concept (Yes/No) |
For Period |
|
dei:EntityEmergingGrowthCompany |
| 15 |
1001000 - Statement - Consolidated Statements of Financial Position |
Network |
* |
* |
http://www.alamosgold.com/role/ConsolidatedStatementsOfFinancialPosition |
| 16 |
Implied Table |
Table |
* |
* |
implied:Table |
| 17 |
Statement of financial position [abstract] |
Abstract |
|
|
ifrs-full:StatementOfFinancialPositionAbstract |
| 18 |
A S S E T S |
Abstract |
|
|
ifrs-full:AssetsAbstract |
| 19 |
Current Assets |
Abstract |
|
|
ifrs-full:CurrentAssetsAbstract |
| 20 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 21 |
Equity securities |
Concept (Monetary) |
As Of |
Debit |
agi:MarketableSecuritiesEquitySecurities1 |
| 22 |
Amounts receivable (note 6) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherCurrentReceivables |
| 23 |
Inventory (note 7) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 24 |
Other current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentAssets |
| 25 |
Total Current Assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentAssets |
| 26 |
Non-Current Assets |
Abstract |
|
|
ifrs-full:NoncurrentAssetsAbstract |
| 27 |
Long-term inventory (note 7) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInventories |
| 28 |
Mineral property, plant and equipment (note 8) |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 29 |
Other non-current assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherNoncurrentAssets |
| 30 |
Total Assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 31 |
L I A B I L I T I E S |
Abstract |
|
|
ifrs-full:LiabilitiesAbstract |
| 32 |
Current Liabilities |
Abstract |
|
|
ifrs-full:CurrentLiabilitiesAbstract |
| 33 |
Accounts payable and accrued liabilities (note 9) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 34 |
Current portion of financing obligations (note 10) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 35 |
Income taxes payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentTaxLiabilitiesCurrent |
| 36 |
Total Current Liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 37 |
Non-Current Liabilities |
Abstract |
|
|
ifrs-full:NoncurrentLiabilitiesAbstract |
| 38 |
Deferred income taxes (note 11) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 39 |
Decommissioning liabilities (note 10) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermProvisionForDecommissioningRestorationAndRehabilitationCosts |
| 40 |
Debt and financing obligations (note 10) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 41 |
Other non-current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherNoncurrentLiabilities |
| 42 |
Total Liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 43 |
E Q U I T Y |
Abstract |
|
|
ifrs-full:EquityAbstract |
| 44 |
Share capital (note 12) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:IssuedCapital |
| 45 |
Contributed surplus |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AdditionalPaidinCapital |
| 46 |
Warrants |
Concept (Monetary) |
As Of |
Credit |
agi:WarrantsandRightsOutstanding1 |
| 47 |
Accumulated other comprehensive (loss) income |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AccumulatedOtherComprehensiveIncome |
| 48 |
Deficit |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:RetainedEarnings |
| 49 |
Total Equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 50 |
Total Liabilities and Equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:EquityAndLiabilities |
| 51 |
1002000 - Statement - Consolidated Statements of Comprehensive Loss |
Network |
* |
* |
http://www.alamosgold.com/role/ConsolidatedStatementsOfComprehensiveLoss |
| 52 |
Implied Table |
Table |
* |
* |
implied:Table |
| 53 |
Profit or loss [abstract] |
Abstract |
|
|
ifrs-full:IncomeStatementAbstract |
| 54 |
OPERATING REVENUES |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 55 |
COST OF SALES |
Abstract |
|
|
agi:CostofSalesAbstract |
| 56 |
Mining and processing |
Concept (Monetary) |
For Period |
Debit |
agi:MiningandProcessing |
| 57 |
Impairment of El Chanate inventory (note 7) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss |
| 58 |
Royalties (note 19) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RoyaltyExpense |
| 59 |
Amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AmortisationExpense |
| 60 |
Cost of sales |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfSales |
| 61 |
EXPENSES |
Abstract |
|
|
ifrs-full:ExpenseByNatureAbstract |
| 62 |
Exploration |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources |
| 63 |
Corporate and administrative |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdministrativeExpense |
| 64 |
Share-based compensation (note 12) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsInWhichGoodsOrServicesReceivedDidNotQualifyForRecognitionAsAssets |
| 65 |
Total expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseByNature |
| 66 |
(LOSS) EARNINGS FROM OPERATIONS |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromOperatingActivities |
| 67 |
Finance expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 68 |
Foreign exchange loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 69 |
Other loss (note 13) |
Concept (Monetary) |
For Period |
Credit |
agi:OtherNonoperatingIncomeExpense1 |
| 70 |
Loss on redemption of senior secured notes |
Concept (Monetary) |
For Period |
Debit |
agi:DebtInstrumentRedemptionLoss |
| 71 |
(LOSS) EARNINGS BEFORE INCOME TAXES |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 72 |
INCOME TAXES (note 11) |
Abstract |
|
|
ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract |
| 73 |
Current income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 74 |
Deferred income tax (expense) recovery |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncome |
| 75 |
NET (LOSS) EARNINGS |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 76 |
Items that may be subsequently reclassified to net earnings: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 77 |
Unrealized (loss) gain on currency hedging instruments, net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax |
| 78 |
Unrealized loss on fuel hedging instruments, net of taxes |
Concept (Monetary) |
For Period |
Credit |
agi:GainsLossesOnCashFlowFuelingHedgesNetOfTax |
| 79 |
Items that will not be reclassified to net earnings: |
Abstract |
|
|
ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossNetOfTaxAbstract |
| 80 |
Unrealized (loss) gain on equity securities, net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncomeNetOfTaxGainsLossesFromInvestmentsInEquityInstruments |
| 81 |
Total other comprehensive (loss) income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:OtherComprehensiveIncome |
| 82 |
COMPREHENSIVE (LOSS) INCOME |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ComprehensiveIncome |
| 83 |
(LOSS) EARNINGS PER SHARE (note 12) |
Abstract |
|
|
ifrs-full:EarningsPerShareAbstract |
| 84 |
- basic (usd per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 85 |
- diluted (usd per share) |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 86 |
Weighted average number of common shares outstanding (000's) |
Abstract |
|
|
ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract |
| 87 |
- basic (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:WeightedAverageShares |
| 88 |
- diluted (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:AdjustedWeightedAverageShares |
| 89 |
1003000 - Statement - Consolidated Statements of Changes in Equity |
Network |
* |
* |
http://www.alamosgold.com/role/ConsolidatedStatementsOfChangesInEquity |
| 90 |
Statement of changes in equity [table] |
Table |
* |
* |
ifrs-full:StatementOfChangesInEquityTable |
| 91 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 92 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 93 |
Share capital [Member] |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 94 |
Contributed Surplus [member] |
Member |
|
|
ifrs-full:AdditionalPaidinCapitalMember |
| 95 |
Warrants [member] |
Member |
|
|
ifrs-full:ReserveOfEquityComponentOfConvertibleInstrumentsMember |
| 96 |
Accumulated other comprehensive income (loss) [member] |
Member |
|
|
ifrs-full:AccumulatedOtherComprehensiveIncomeMember |
| 97 |
Deficit [member] |
Member |
|
|
ifrs-full:RetainedEarningsMember |
| 98 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 99 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 100 |
Equity securities [member] |
Member |
|
|
ifrs-full:EquityInvestmentsMember |
| 101 |
Currency hedging instruments [member] |
Member |
|
|
ifrs-full:CurrencySwapContractMember |
| 102 |
Fuel Hedging Instruments [Member] |
Member |
|
|
agi:FuelHedgingInstrumentsMember |
| 103 |
Statement of changes in equity [line items] |
LineItems |
|
|
ifrs-full:StatementOfChangesInEquityLineItems |
| 104 |
Changes in equity [abstract] |
Abstract |
|
|
ifrs-full:ChangesInEquityAbstract |
| 105 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 106 |
Issuance of shares related to Richmont acquisition (note 5) |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueAcquisitions1 |
| 107 |
Issuance of shares through bought deal financing, net of issuance costs and deferred taxes |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodThroughBoughtDealFinancingNetofIssuanceCostsandDeferredTaxes |
| 108 |
Issuance of shares related to share-based compensation |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions |
| 109 |
Issuance of shares related to exercise of warrants |
Concept (Monetary) |
For Period |
Credit |
agi:IncreaseDecreaseThroughExerciseOfWarrantsEquityAssetAcquisition |
| 110 |
Issuance of shares through flow-through share agreements |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueDividendReinvestmentPlan1 |
| 111 |
Share-based compensation |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueStockOptionsExercised1 |
| 112 |
Transfer from contributed surplus of share-based compensation redeemed |
Concept (Monetary) |
For Period |
Credit |
agi:StockRedeemedorCalledDuringPeriodValue1 |
| 113 |
Shares issued related to the merger (note x) |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueMerger |
| 114 |
Exercise of warrants |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueIssuedWarrantsRelatedtoAssetAcquisition |
| 115 |
Issuance of warrants |
Concept (Monetary) |
For Period |
Credit |
agi:IncreaseDecreaseThroughIssuanceofWarrantsDuetoExerciseofEquityInstrumentsAssetAcquisition |
| 116 |
Realized gain on sale of equity securities, reclassified to deficit, net of tax (note 16) |
Concept (Monetary) |
For Period |
Credit |
agi:OtherComprehensiveIncomeReclassificationonEquitySecurities |
| 117 |
Unrealized (loss) gain - equity securities, net of taxes |
Concept (Monetary) |
For Period |
Credit |
agi:OtherComprehensiveIncomeLossUnrealizedHoldingGainLossonSecuritiesArisingDuringPeriodNetofTax |
| 118 |
Unrealized (loss) gain on currency hedging instruments, net of taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnCashFlowHedgesNetOfTax |
| 119 |
Dividends (note12(f)) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsPaid |
| 120 |
Reclassification of realized gain on sale of equity securities, net of tax (note 16) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidToNoncontrollingInterests |
| 121 |
Net (loss) earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 122 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 123 |
1004000 - Statement - Consolidated Statements of Cash Flows |
Network |
* |
* |
http://www.alamosgold.com/role/ConsolidatedStatementsOfCashFlows |
| 124 |
Implied Table |
Table |
* |
* |
implied:Table |
| 125 |
Statement of cash flows [abstract] |
Abstract |
|
|
ifrs-full:StatementOfCashFlowsAbstract |
| 126 |
CASH PROVIDED (USED IN) BY OPERTING ACTIVITIES |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract |
| 127 |
Net (loss) earnings for the period |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 128 |
Adjustments for items not involving cash: |
Abstract |
|
|
ifrs-full:AdjustmentsForReconcileProfitLossAbstract |
| 129 |
Amortization |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForAmortisationExpense |
| 130 |
Foreign exchange loss (gain) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains |
| 131 |
Current income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForIncomeTaxExpense |
| 132 |
Deferred income tax expense (recovery) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDeferredTaxExpense |
| 133 |
Share-based compensation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForSharebasedPayments |
| 134 |
Finance expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForFinanceCosts |
| 135 |
Impairment of El Chanate inventory |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLossInventories |
| 136 |
Loss on redemption of senior secured notes |
Concept (Monetary) |
For Period |
Debit |
agi:LossOnRedemptionOfSeniorSecuredNotesAdjustment |
| 137 |
Other items (note 14) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherAdjustmentsForNoncashItems |
| 138 |
Changes in working capital and taxes received or paid (note 14) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 139 |
Cash flows from (used in) operating activities |
Concept (Monetary) |
For Period |
|
ifrs-full:CashFlowsFromUsedInOperatingActivities |
| 140 |
INVESTING ACTIVITIES |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract |
| 141 |
Mineral property, plant and equipment |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities |
| 142 |
Cash received from the acquisition of Richmont (note 5) |
Concept (Monetary) |
For Period |
Debit |
agi:CashAcquiredfromAssetAcquisition |
| 143 |
Proceeds from sale of equity securities |
Concept (Monetary) |
For Period |
Credit |
agi:PaymentsforPurchaseofOutstandingRoyalty |
| 144 |
Other |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherInflowsOutflowsOfCashClassifiedAsInvestingActivities |
| 145 |
Cash flows from (used in) investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInInvestingActivities |
| 146 |
FINANCING ACTIVITIES |
Abstract |
|
|
ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract |
| 147 |
Net proceeds from bought deal financing |
Concept (Monetary) |
For Period |
Debit |
agi:ProceedsfromBoughtDealFinancing |
| 148 |
Repayment of senior secured notes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBondsNotesAndDebentures |
| 149 |
Repayment of debt and equipment financing obligations |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RepaymentsOfBorrowingsClassifiedAsFinancingActivities |
| 150 |
Interest paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:InterestPaidClassifiedAsFinancingActivities |
| 151 |
Credit facility transaction fees |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsForDebtIssueCosts |
| 152 |
Proceeds received from the exercise of stock options and warrants |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromExerciseOfOptions |
| 153 |
Dividends paid |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DividendsPaidClassifiedAsFinancingActivities |
| 154 |
Proceeds from issuance of flow-through shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromIssuingShares |
| 155 |
Cash flows from (used in) financing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CashFlowsFromUsedInFinancingActivities |
| 156 |
Effect of exchange rates on cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:EffectOfExchangeRateChangesOnCashAndCashEquivalents |
| 157 |
Increase (decrease) in cash and cash equivalents |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseInCashAndCashEquivalents |
| 158 |
Cash and cash equivalents - beginning of year |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 159 |
CASH AND CASH EQUIVALENTS - END OF YEAR |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 160 |
2101100 - Disclosure - Nature of Operations |
Network |
* |
* |
http://www.alamosgold.com/role/NatureOfOperations |
| 161 |
Implied Table |
Table |
* |
* |
implied:Table |
| 162 |
Disclosure of notes and other explanatory information [Abstract] |
Abstract |
|
|
agi:DisclosureofnotesandotherexplanatoryinformationAbstract |
| 163 |
Nature of Operations |
Concept (Text Block (HTML)) |
For Period |
|
agi:NatureofOperations1TextBlock |
| 164 |
2102100 - Disclosure - Basis of Preparation |
Network |
* |
* |
http://www.alamosgold.com/role/BasisOfPreparation |
| 165 |
Implied Table |
Table |
* |
* |
implied:Table |
| 166 |
Disclosure of notes and other explanatory information [Abstract] |
Abstract |
|
|
agi:DisclosureofnotesandotherexplanatoryinformationAbstract |
| 167 |
Basis of Preparation |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfBasisOfPreparationOfFinancialStatementsExplanatory |
| 168 |
2103100 - Disclosure - Summary of Significant Accounting Policies |
Network |
* |
* |
http://www.alamosgold.com/role/SummaryOfSignificantAccountingPolicies |
| 169 |
Implied Table |
Table |
* |
* |
implied:Table |
| 170 |
Disclosure of significant accounting policies [Abstract] |
Abstract |
|
|
agi:DisclosureofsignificantaccountingpoliciesAbstract |
| 171 |
Summary of Significant Accounting Policies |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfSummaryOfSignificantAccountingPoliciesExplanatory |
| 172 |
2104100 - Disclosure - Critical Accounting Estimates and Judgements |
Network |
* |
* |
http://www.alamosgold.com/role/CriticalAccountingEstimatesAndJudgements |
| 173 |
Implied Table |
Table |
* |
* |
implied:Table |
| 174 |
Disclosure of notes and other explanatory information [Abstract] |
Abstract |
|
|
agi:DisclosureofnotesandotherexplanatoryinformationAbstract |
| 175 |
Critical Accounting Estimates and Judgements |
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| 176 |
2105100 - Disclosure - Acquisition of Richmond Mines Ltd. Acquisition of Richmond Mines Ltd. |
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| 177 |
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| 178 |
Disclosure of detailed information about business combination [abstract] |
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| 179 |
Acquisition of Richmond Mines Ltd. |
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| 180 |
2106100 - Disclosure - Amounts Receivable |
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| 181 |
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| 182 |
Subclassifications of assets, liabilities and equities [abstract] |
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| 183 |
Amounts Receivable |
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ifrs-full:DisclosureOfTradeAndOtherReceivablesExplanatory |
| 184 |
2107100 - Disclosure - Inventory |
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| 185 |
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| 186 |
Disclosure of inventories [Abstract] |
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| 187 |
Inventory |
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| 188 |
2108100 - Disclosure - Mineral Property, Pland and Equipment |
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| 189 |
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| 190 |
Disclosure of detailed information about property, plant and equipment [abstract] |
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| 191 |
Mineral Property, Pland and Equipment |
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| 192 |
2109100 - Disclosure - Accounts Payable and Accrued Liabilities |
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| 193 |
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| 194 |
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ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 195 |
Accounts Payable and Accrued Liabilities |
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ifrs-full:DisclosureOfTradeAndOtherPayablesExplanatory |
| 196 |
2111100 - Disclosure - Decommissioning Liabilities |
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http://www.alamosgold.com/role/DecommissioningLiabilities |
| 197 |
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| 198 |
Asset Retirement Obligation Disclosure1 [Abstract] |
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agi:AssetRetirementObligationDisclosure1Abstract |
| 199 |
Decommissioning Liabilities |
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ifrs-full:DisclosureOfProvisionsExplanatory |
| 200 |
2112100 - Disclosure - Income Taxes |
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http://www.alamosgold.com/role/IncomeTaxes |
| 201 |
Implied Table |
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| 202 |
Disclosure of income tax [Abstract] |
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agi:DisclosureofincometaxAbstract |
| 203 |
Income Taxes |
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| 204 |
2113100 - Disclosure - Share Capital |
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http://www.alamosgold.com/role/ShareCapital |
| 205 |
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| 206 |
Disclosure of share capital, reserves and other equity interest [Abstract] |
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agi:DisclosureofsharecapitalreservesandotherequityinterestAbstract |
| 207 |
Share Capital |
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| 208 |
2114100 - Disclosure - Other Gain (Loss) |
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http://www.alamosgold.com/role/OtherGainLoss |
| 209 |
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| 210 |
Other Gain (Loss) [Abstract] |
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agi:OtherGainLossAbstract |
| 211 |
Other (Loss) Gain |
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ifrs-full:DisclosureOfOtherOperatingIncomeExpenseExplanatory |
| 212 |
2115100 - Disclosure - Supplemental Cash Flow Information |
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http://www.alamosgold.com/role/SupplementalCashFlowInformation |
| 213 |
Implied Table |
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| 214 |
Disclosure of Cash Flow Statement [Abstract] |
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| 215 |
Supplemental Cash Flow Information |
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ifrs-full:DisclosureOfCashFlowStatementExplanatory |
| 216 |
2116100 - Disclosure - Segmented Information |
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http://www.alamosgold.com/role/SegmentedInformation |
| 217 |
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| 218 |
Disclosure of entity's operating segments [Abstract] |
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| 219 |
Segmented Information |
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ifrs-full:DisclosureOfEntitysReportableSegmentsExplanatory |
| 220 |
2117100 - Disclosure - Financial Instruments and Risk Management |
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http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagement |
| 221 |
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| 222 |
Disclosure of detailed information about financial instruments [abstract] |
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| 223 |
Financial Instruments and Risk Management |
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| 224 |
2118100 - Disclosure - Management of Capital |
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| 225 |
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| 226 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
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| 227 |
Management of Capital |
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| 228 |
2119100 - Disclosure - Related Party Transactions |
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| 229 |
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| 230 |
Disclosure of related party [Abstract] |
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| 231 |
Related Party Transactions |
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| 232 |
2120100 - Disclosure - Commitments Commitments |
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| 233 |
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| 234 |
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| 235 |
Commitments |
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| 236 |
2203201 - Disclosure - Summary of Significant Accounting Policies (Policies) |
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| 237 |
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| 238 |
Disclosure of significant accounting policies [Abstract] |
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| 239 |
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Basis of consolidation |
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| 241 |
Investments in associates and joint ventures |
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| 242 |
Functional and presentation currency |
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ifrs-full:DescriptionOfAccountingPolicyForFunctionalCurrencyExplanatory |
| 243 |
Translation of transactions and balances into the functional currency |
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| 244 |
Revenue recognition |
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| 245 |
Cash and cash equivalents |
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| 246 |
Inventories |
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| 247 |
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| 248 |
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ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory |
| 249 |
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ifrs-full:DescriptionOfAccountingPolicyForExplorationAndEvaluationExpenditures |
| 250 |
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| 251 |
Commercial production |
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agi:CommercialProductionPolicyPolicyTextBlock |
| 252 |
Capitalized stripping costs |
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| 253 |
Investment tax credits |
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ifrs-full:DescriptionOfAccountingPolicyForTaxesOtherThanIncomeTaxExplanatory |
| 254 |
Derecognition |
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ifrs-full:DescriptionOfAccountingPolicyForImpairmentOfAssetsExplanatory |
| 255 |
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| 256 |
Goodwill |
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| 257 |
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| 258 |
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| 259 |
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agi:FlowThroughSharesPolicyPolicyTextBlock |
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| 261 |
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| 262 |
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| 263 |
Income taxes |
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ifrs-full:DescriptionOfAccountingPolicyForIncomeTaxExplanatory |
| 264 |
Loss per share |
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ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory |
| 265 |
Financial instruments |
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ifrs-full:DescriptionOfAccountingPolicyForFinancialInstrumentsExplanatory |
| 266 |
Hedges |
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ifrs-full:DescriptionOfAccountingPolicyForHedgingExplanatory |
| 267 |
Segment reporting |
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ifrs-full:DescriptionOfAccountingPolicyForSegmentReportingExplanatory |
| 268 |
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| 269 |
2303302 - Disclosure - Summary of Significant Accounting Policies (Tables) |
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| 270 |
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| 272 |
Schedule of Subsidiaries |
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| 273 |
Disclosure of detailed information about property, plant and equipment [text block] |
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ifrs-full:DisclosureOfDetailedInformationAboutPropertyPlantAndEquipmentExplanatory |
| 274 |
Schedule of Investments By Classification |
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agi:ScheduleofInvestmentsByClassificationTableTextBlock |
| 275 |
Schedule of Recently Issued Standards, Not Yet Adopted |
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agi:ScheduleofRecentlyIssuedStandardsNotYetAdoptedTableTextBlock |
| 276 |
2305301 - Disclosure - Acquisition of Richmond Mines Ltd. (Tables) |
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http://www.alamosgold.com/role/AcquisitionOfRichmondMinesLtdTables |
| 277 |
Implied Table |
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| 278 |
Disclosure of detailed information about business combination [abstract] |
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ifrs-full:DisclosureOfBusinessCombinationsAbstract |
| 279 |
Schedule of Asset Acquisitions |
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ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory |
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2306301 - Disclosure - Amounts Receivable (Tables) |
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http://www.alamosgold.com/role/AmountsReceivableTables |
| 281 |
Implied Table |
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| 282 |
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ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 283 |
Schedule of Receivables |
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agi:ScheduleofReceivablesTableTextBlock |
| 284 |
2307301 - Disclosure - Inventory (Tables) |
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http://www.alamosgold.com/role/InventoryTables |
| 285 |
Implied Table |
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| 286 |
Disclosure of inventories [Abstract] |
Abstract |
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agi:DisclosureofinventoriesAbstract |
| 287 |
Schedule of Inventory |
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agi:ScheduleofInventoryTableTextBlock |
| 288 |
2308301 - Disclosure - Mineral Property, Pland and Equipment (Tables) |
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http://www.alamosgold.com/role/MineralPropertyPlandAndEquipmentTables |
| 289 |
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| 291 |
Disclosure of detailed information about property, plant and equipment |
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2309301 - Disclosure - Accounts Payable and Accrued Liabilities (Tables) |
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| 293 |
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Schedule of Accounts Payable and Accrued Liabilities |
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| 296 |
2311301 - Disclosure - Decommissioning Liabilities (Tables) |
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http://www.alamosgold.com/role/DecommissioningLiabilitiesTables |
| 297 |
Implied Table |
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| 298 |
Asset Retirement Obligation Disclosure1 [Abstract] |
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agi:AssetRetirementObligationDisclosure1Abstract |
| 299 |
Schedule of Change in Asset Retirement Obligation |
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ifrs-full:DisclosureOfOtherProvisionsExplanatory |
| 300 |
2312301 - Disclosure - Income Taxes (Tables) |
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| 301 |
Implied Table |
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| 302 |
Disclosure of income tax [Abstract] |
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agi:DisclosureofincometaxAbstract |
| 303 |
Major Components Of Tax Expense (Income) |
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| 304 |
Reconciliation Of Accounting Profit Multiplied By Applicable Tax Rates And Average Effective Tax Rate |
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Schedule of Change in Deferred Income Tax Liability |
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Schedule of Deferred Tax Assets and Liabilities |
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2313301 - Disclosure - Share Capital (Tables) |
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| 308 |
Implied Table |
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| 310 |
Schedule of Common Stock Outstanding Roll Forward |
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| 311 |
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| 313 |
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Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share |
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Schedule of Share Purchase Warrants |
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agi:ScheduleofSharePurchaseWarrantsTableTextBlock |
| 319 |
2314301 - Disclosure - Other (Loss) Gain (Tables) |
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| 320 |
Implied Table |
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| 321 |
Other Gain (Loss) [Abstract] |
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agi:OtherGainLossAbstract |
| 322 |
Schedule of Other Nonoperating Income (Expense) |
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2315301 - Disclosure - Supplemental Cash Flow Information (Tables) |
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| 324 |
Implied Table |
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2316301 - Disclosure - Segmented Information (Tables) |
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| 329 |
Implied Table |
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| 331 |
Disclosure of operating segments [text block] |
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| 332 |
2317301 - Disclosure - Financial Instruments and Risk Management (Tables) |
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Implied Table |
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| 335 |
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| 338 |
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Schedule of Outstanding Derivative Contracts |
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| 342 |
Schedule of Foreign Currency Exchange Rate Risk |
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For Period |
|
ifrs-full:SensitivityAnalysisForEachTypeOfMarketRisk |
| 343 |
Disclosure of credit risk exposure |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfCreditRiskExposureExplanatory |
| 344 |
Schedule of Maturities of Debt |
Concept (Text Block (HTML)) |
For Period |
|
agi:ContractualObligationFiscalYearMaturitySchedule1TableTextBlock |
| 345 |
2318301 - Disclosure - Management of Capital (Tables) |
Network |
* |
* |
http://www.alamosgold.com/role/ManagementOfCapitalTables |
| 346 |
Implied Table |
Table |
* |
* |
implied:Table |
| 347 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract |
| 348 |
Schedule of Managed Capital |
Concept (Text Block (HTML)) |
For Period |
|
agi:ScheduleofManagedCapitalTableTextBlock |
| 349 |
2319301 - Disclosure - Related Party Transactions (Tables) |
Network |
* |
* |
http://www.alamosgold.com/role/RelatedPartyTransactionsTables |
| 350 |
Implied Table |
Table |
* |
* |
implied:Table |
| 351 |
Disclosure of related party [Abstract] |
Abstract |
|
|
agi:DisclosureofrelatedpartyAbstract |
| 352 |
Disclosure of transactions between related parties |
Concept (Text Block (HTML)) |
For Period |
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesExplanatory |
| 353 |
2401401 - Disclosure - Nature of Operations (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/NatureOfOperationsDetails |
| 354 |
Implied Table |
Table |
* |
* |
implied:Table |
| 355 |
Continuing and discontinued operations [Abstract] |
Abstract |
|
|
agi:ContinuinganddiscontinuedoperationsAbstract |
| 356 |
Option to acquire business interest |
Concept (Percent) |
As Of |
|
agi:PercentageofOptiontoAcquireBusinessInterest |
| 357 |
2403403 - Disclosure - Summary of Significant Accounting Policies (Assets) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SummaryOfSignificantAccountingPoliciesAssetsDetails |
| 358 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 359 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 360 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 361 |
Leasehold improvements [member] |
Member |
|
|
ifrs-full:LeaseholdImprovementsMember |
| 362 |
Mobile Equipment [Member] |
Member |
|
|
agi:MobileEquipmentMember |
| 363 |
Other equipment [member] |
Member |
|
|
ifrs-full:OtherPropertyPlantAndEquipmentMember |
| 364 |
Processing Plant [Member] |
Member |
|
|
agi:ProcessingPlantMember |
| 365 |
Vehicles [member] |
Member |
|
|
ifrs-full:VehiclesMember |
| 366 |
Buildings [member] |
Member |
|
|
ifrs-full:BuildingsMember |
| 367 |
Office equipment [member] |
Member |
|
|
ifrs-full:OfficeEquipmentMember |
| 368 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 369 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 370 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 371 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 372 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 373 |
Useful lives of property, plant and equipment |
Concept (xbrli:durationItemType) |
For Period |
|
agi:UsefulLivesOrDepreciationRatesPropertyPlantAndEquipmentPeriod |
| 374 |
2405402 - Disclosure - Acquisition of Richmond Mines Ltd. (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/AcquisitionOfRichmondMinesLtdNarrativeDetails |
| 375 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 376 |
Income Statement Location [Axis] |
Axis |
|
|
agi:IncomeStatementLocation1Axis |
| 377 |
Income Statement Location [Domain] |
Member |
|
|
agi:IncomeStatementLocation1Domain |
| 378 |
Other Loss [Member] |
Member |
|
|
agi:OtherLossMember |
| 379 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 380 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 381 |
Ordinary shares [member] |
Member |
|
|
ifrs-full:OrdinarySharesMember |
| 382 |
Warrants [Member] |
Member |
|
|
agi:WarrantsMember |
| 383 |
Subsidiaries [axis] |
Axis |
|
|
ifrs-full:SignificantInvestmentsInSubsidiariesAxis |
| 384 |
Subsidiaries [member] |
Member |
|
|
ifrs-full:SubsidiariesMember |
| 385 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 386 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 387 |
Richmont Mines Ltd [Member] |
Member |
|
|
agi:RichmontMinesLtdMember |
| 388 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 389 |
Conversion ratio of shares |
Concept (Pure) |
As Of |
|
agi:BusinessCombinationsConversionRatioofShares |
| 390 |
Conversion of Richmont units to Alamos units (note 5) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedBusinessCombination |
| 391 |
Number of shares issued, business combination, value |
Concept (Monetary) |
For Period |
Debit |
agi:BusinessCombinationSharesIssuedValue |
| 392 |
Transaction costs |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionrelatedCostsForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 393 |
Share based compensation, acquisitions |
Concept (Monetary) |
For Period |
Debit |
agi:AcquisitionsThroughBusinessCombinationsShareBasedCompensation |
| 394 |
Revenue of acquiree since acquisition date |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueOfAcquiree |
| 395 |
Profit of acquiree since acquisition date |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossOfAcquiree |
| 396 |
Revenue of combined entity as if combination occurred at beginning of period |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueOfCombinedEntity |
| 397 |
Profit (loss) of combined entity as if combination occurred at beginning of period |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossOfCombinedEntity |
| 398 |
2405403 - Disclosure - Acquisition of Richmond Mines Ltd. (Schedule of Asset Acquisition) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/AcquisitionOfRichmondMinesLtdScheduleOfAssetAcquisitionDetails |
| 399 |
Disclosure of detailed information about business combination [table] |
Table |
* |
* |
ifrs-full:DisclosureOfBusinessCombinationsTable |
| 400 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 401 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 402 |
Richmont Mines Ltd [Member] |
Member |
|
|
agi:RichmontMinesLtdMember |
| 403 |
Disclosure of detailed information about business combination [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfBusinessCombinationsLineItems |
| 404 |
Consideration transferred |
Abstract |
|
|
agi:ConsiderationTransferredAbstract |
| 405 |
Common shares issued |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IssueOfEquity |
| 406 |
Replacement of long-term incentive instruments |
Concept (Monetary) |
For Period |
Debit |
agi:AcquisitionsThroughBusinessCombinationsShareBasedCompensation |
| 407 |
Consideration transferred |
Concept (Monetary) |
For Period |
|
ifrs-full:AmountsRecognisedForTransactionRecognisedSeparatelyFromAcquisitionOfAssetsAndAssumptionOfLiabilitiesInBusinessCombination |
| 408 |
Net assets acquired |
Abstract |
|
|
ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract |
| 409 |
Cash and cash equivalents |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CashAndCashEquivalents |
| 410 |
Equity securities |
Concept (Monetary) |
As Of |
Debit |
agi:MarketableSecuritiesEquitySecurities1 |
| 411 |
Current assets, excluding cash and cash equivalents and equity securities |
Concept (Monetary) |
As Of |
Debit |
agi:CurrentAssetsExcludingCashandCashEquivalents |
| 412 |
Mineral property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 413 |
Current liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentLiabilities |
| 414 |
Long-term liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:NoncurrentLiabilities |
| 415 |
Deferred tax liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 416 |
Net assets acquired |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NetAssetsLiabilities |
| 417 |
2406402 - Disclosure - Amounts Receivable (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/AmountsReceivableDetails |
| 418 |
Receivables [Table] |
Table |
* |
* |
agi:ReceivablesTable |
| 419 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 420 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 421 |
Canada |
Member |
|
|
ifrs-full:CountryOfDomicileMember |
| 422 |
Mexico |
Member |
|
|
agi:MXMember |
| 423 |
Other |
Member |
|
|
ifrs-full:ForeignCountriesMember |
| 424 |
Receivables [Line Items] |
LineItems |
|
|
agi:ReceivablesLineItems |
| 425 |
Sales tax receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ValueAddedTaxReceivables |
| 426 |
Concentrate receivable |
Concept (Monetary) |
As Of |
Debit |
agi:ConcentrateReceivable |
| 427 |
Other receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:OtherCurrentReceivables |
| 428 |
Trade and other current receivables |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:TradeAndOtherCurrentReceivables |
| 429 |
2407402 - Disclosure - Inventory (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/InventoryDetails |
| 430 |
Implied Table |
Table |
* |
* |
implied:Table |
| 431 |
Disclosure of inventories [Abstract] |
Abstract |
|
|
agi:DisclosureofinventoriesAbstract |
| 432 |
In-process precious metals |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:WorkInProgress |
| 433 |
Ore in stockpiles |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentOreStockpiles |
| 434 |
Parts and supplies |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:CurrentMaterialsAndSuppliesToBeConsumedInProductionProcessOrRenderingServices |
| 435 |
Dore, refined precious metals and gold in concentrate |
Concept (Monetary) |
As Of |
Debit |
agi:OreRefinedPreciousMetalsandGoldinConcentrate |
| 436 |
Inventories |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:InventoriesTotal |
| 437 |
Less: Long-term inventory |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInventories |
| 438 |
Inventory |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Inventories |
| 439 |
2407403 - Disclosure - Inventory (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/InventoryNarrativeDetails |
| 440 |
Inventory [Table] |
Table |
* |
* |
agi:InventoryTable |
| 441 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 442 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 443 |
El Chanate [Member] |
Member |
|
|
agi:ElChanateMember |
| 444 |
Inventory [Axis] |
Axis |
|
|
agi:InventoryAxis |
| 445 |
Inventory [Domain] |
Member |
|
|
agi:InventoryDomain |
| 446 |
Mining [Member] |
Member |
|
|
agi:MiningMember |
| 447 |
Amortization [Member] |
Member |
|
|
agi:AmortizationMember |
| 448 |
Inventory [Line Items] |
LineItems |
|
|
agi:Inventory1LineItems |
| 449 |
Long-term inventory |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:NoncurrentInventories |
| 450 |
Mining and processing costs, inventories |
Concept (Monetary) |
For Period |
Debit |
agi:MiningandProcessingCostsInventories |
| 451 |
Amortization costs, Inventories |
Concept (Monetary) |
For Period |
Debit |
agi:AmortizationCostsInventories |
| 452 |
Inventory write-down |
Concept (Monetary) |
For Period |
|
ifrs-full:InventoryWritedown2011 |
| 453 |
Unrecoverable Ounces |
Concept (num:massItemType) |
For Period |
|
agi:UnrecoverableOunces |
| 454 |
Impairment loss |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLoss |
| 455 |
Impairment loss net of tax |
Concept (Monetary) |
For Period |
Debit |
agi:ImpairmentLossNetofTax |
| 456 |
2408402 - Disclosure - Mineral Property, Pland and Equipment (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/MineralPropertyPlandAndEquipmentDetails |
| 457 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 458 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 459 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 460 |
Plant and Equipment [Member] |
Member |
|
|
agi:PlantandEquipmentMember |
| 461 |
Mineral Property - Depletable [Member] |
Member |
|
|
agi:MineralPropertyDepletableMember |
| 462 |
Mineral Property - Non-Depletable [Member] |
Member |
|
|
agi:MineralPropertyNonDepletableMember |
| 463 |
Exploration and evaluation assets [member] |
Member |
|
|
ifrs-full:ExplorationAndEvaluationAssetsMember |
| 464 |
Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] |
Axis |
|
|
ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis |
| 465 |
Carrying amount [member] |
Member |
|
|
ifrs-full:CarryingAmountMember |
| 466 |
Gross carrying amount [member] |
Member |
|
|
ifrs-full:GrossCarryingAmountMember |
| 467 |
Accumulated depreciation, amortisation and impairment [member] |
Member |
|
|
ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember |
| 468 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 469 |
Reconciliation of changes in property, plant and equipment [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInPropertyPlantAndEquipmentAbstract |
| 470 |
Property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 471 |
Additions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 472 |
Acquisitions of new entities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AcquisitionsThroughBusinessCombinationsPropertyPlantAndEquipment |
| 473 |
Transfers |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment |
| 474 |
Amortization |
Concept (Monetary) |
For Period |
|
ifrs-full:DepreciationPropertyPlantAndEquipment |
| 475 |
Disposals |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:DisposalsPropertyPlantAndEquipment |
| 476 |
Mineral property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 477 |
2408403 - Disclosure - Mineral Property, Pland and Equipment (Net Value Carrying Values) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/MineralPropertyPlandAndEquipmentNetValueCarryingValuesDetails |
| 478 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 479 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 480 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 481 |
Operating segments [member] |
Member |
|
|
ifrs-full:OperatingSegmentsMember |
| 482 |
Corporate and other [Member] |
Member |
|
|
agi:CorporateNonSegment1Member |
| 483 |
Segments [Axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 484 |
Segments [Domain] |
Member |
|
|
ifrs-full:SegmentsMember |
| 485 |
Young-Davidson [Member] |
Member |
|
|
agi:YoungDavidsonSegmentMember |
| 486 |
Mulatos [Member] |
Member |
|
|
agi:MulatosSegmentMember |
| 487 |
Island Gold [Member] |
Member |
|
|
agi:IslandGoldMember |
| 488 |
El Chanate [Member] |
Member |
|
|
agi:ElChanateSegmentMember |
| 489 |
Kirazli Segment [Member] |
Member |
|
|
agi:KirazliSegmentMember |
| 490 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 491 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 492 |
Plant and Equipment [Member] |
Member |
|
|
agi:PlantandEquipmentMember |
| 493 |
Mineral Property - Depletable [Member] |
Member |
|
|
agi:MineralPropertyDepletableMember |
| 494 |
Mineral Property - Non-Depletable [Member] |
Member |
|
|
agi:MineralPropertyNonDepletableMember |
| 495 |
Exploration and evaluation assets [member] |
Member |
|
|
ifrs-full:ExplorationAndEvaluationAssetsMember |
| 496 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 497 |
Mineral property, plant and equipment |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:PropertyPlantAndEquipment |
| 498 |
2408404 - Disclosure - Mineral Property, Pland and Equipment (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/MineralPropertyPlandAndEquipmentNarrativeDetails |
| 499 |
Disclosure of detailed information about property, plant and equipment [table] |
Table |
* |
* |
ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable |
| 500 |
Classes of property, plant and equipment [axis] |
Axis |
|
|
ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis |
| 501 |
Property, plant and equipment [member] |
Member |
|
|
ifrs-full:PropertyPlantAndEquipmentMember |
| 502 |
Royalty Rights [Member] |
Member |
|
|
agi:RoyaltyRightsMember |
| 503 |
Disclosure of detailed information about property, plant and equipment [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems |
| 504 |
Construction in progress |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:ConstructionInProgress |
| 505 |
Interest costs capitalised |
Concept (Monetary) |
For Period |
|
ifrs-full:InterestCostsCapitalised |
| 506 |
Capitalisation rate of borrowing costs eligible for capitalisation |
Concept (Percent) |
For Period |
|
ifrs-full:CapitalisationRateOfBorrowingCostsEligibleForCapitalisation |
| 507 |
Additions other than through business combinations, property, plant and equipment |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment |
| 508 |
2409402 - Disclosure - Accounts Payable and Accrued Liabilities (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/AccountsPayableAndAccruedLiabilitiesDetails |
| 509 |
Implied Table |
Table |
* |
* |
implied:Table |
| 510 |
Subclassifications of assets, liabilities and equities [abstract] |
Abstract |
|
|
ifrs-full:SubclassificationsOfAssetsLiabilitiesAndEquitiesAbstract |
| 511 |
Trade accounts payable and accrued liabilities |
Concept (Monetary) |
As Of |
Credit |
agi:TradeAccountsPayableandAccruedLiabilitiesCurrent |
| 512 |
Royalties payable |
Concept (Monetary) |
As Of |
Credit |
agi:AccruedRoyaltiesCurrent1 |
| 513 |
Interest payable |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentInterestPayable |
| 514 |
Share-based compensation liability (note 16) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ShorttermEmployeeBenefitsAccruals |
| 515 |
Current portion of equipment financing obligations |
Concept (Monetary) |
As Of |
Credit |
agi:CurrentPortionofEquipmentFinancingObligations |
| 516 |
Derivative liabilities (note 20) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentDerivativeFinancialLiabilities |
| 517 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:TradeAndOtherCurrentPayables |
| 518 |
2411402 - Disclosure - Decommissioning Liabilities (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/DecommissioningLiabilitiesDetails |
| 519 |
Disclosure of other provisions [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOtherProvisionsTable |
| 520 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 521 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 522 |
Provision for decommissioning, restoration and rehabilitation costs [member] |
Member |
|
|
ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember |
| 523 |
Disclosure of other provisions [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOtherProvisionsLineItems |
| 524 |
Reconciliation of changes in other provisions [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInOtherProvisionsAbstract |
| 525 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 526 |
Liability assumed on acquisition |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProvisionUsedOtherProvisions |
| 527 |
Reclamation, Care and Maintenance Expenses |
Concept (Monetary) |
For Period |
Debit |
agi:ReclamationExpenses |
| 528 |
Accretion expense |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughTimeValueOfMoneyAdjustmentOtherProvisions |
| 529 |
Revisions to expected discounted cash flows |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughChangeInDiscountRateOtherProvisions |
| 530 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:OtherProvisions |
| 531 |
2411403 - Disclosure - Decommissioning Liabilities (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/DecommissioningLiabilitiesNarrativeDetails |
| 532 |
Asset Retirement Obligation Disclosure [Table] |
Table |
* |
* |
agi:AssetRetirementObligationDisclosureTable |
| 533 |
Classes of other provisions [axis] |
Axis |
|
|
ifrs-full:ClassesOfProvisionsAxis |
| 534 |
Other provisions [member] |
Member |
|
|
ifrs-full:OtherProvisionsMember |
| 535 |
Provision for decommissioning, restoration and rehabilitation costs [member] |
Member |
|
|
ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCostsMember |
| 536 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 537 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 538 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 539 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 540 |
Asset Retirement Obligation Disclosure [Line Items] |
LineItems |
|
|
agi:AssetRetirementObligationDisclosureLineItems |
| 541 |
Estimated reclamation discount rate |
Concept (Percent) |
For Period |
|
agi:EstimatedReclamationDiscountRate |
| 542 |
Closure cost obligations discount rate |
Concept (Percent) |
For Period |
|
agi:ClosureCostObligationsDiscountRate |
| 543 |
Inflation rate |
Concept (Percent) |
For Period |
|
agi:InflationRate |
| 544 |
Asset retirement obligation, undiscounted value |
Concept (Monetary) |
As Of |
Credit |
agi:OtherProvisionsUndiscountedValue |
| 545 |
2412402 - Disclosure - Income Taxes (Components of tax expense) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/IncomeTaxesComponentsOfTaxExpenseDetails |
| 546 |
Implied Table |
Table |
* |
* |
implied:Table |
| 547 |
Disclosure of income tax [Abstract] |
Abstract |
|
|
agi:DisclosureofincometaxAbstract |
| 548 |
Current income tax expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CurrentTaxExpenseIncome |
| 549 |
Deferred income tax expense (recovery) |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DeferredTaxExpenseIncome |
| 550 |
Income tax expense (recovery) recognized in net (loss) earnings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 551 |
2412403 - Disclosure - Income Taxes (Tax Reconciliation) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/IncomeTaxesTaxReconciliationDetails |
| 552 |
Implied Table |
Table |
* |
* |
implied:Table |
| 553 |
Disclosure of income tax [Abstract] |
Abstract |
|
|
agi:DisclosureofincometaxAbstract |
| 554 |
(Loss) earnings before income taxes |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AccountingProfit |
| 555 |
Statutory tax rate |
Concept (Percent) |
For Period |
|
ifrs-full:ApplicableTaxRate |
| 556 |
Expected income tax (recovery) expense based on above rates |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxExpenseIncomeAtApplicableTaxRate |
| 557 |
Effect of higher tax rates in foreign jurisdictions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxEffectOfForeignTaxRates |
| 558 |
Non-deductible expenses |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss |
| 559 |
Impact of local mining taxes |
Concept (Monetary) |
For Period |
Debit |
agi:TaxEffectOfLocalMiningTaxes |
| 560 |
Impact of foreign exchange |
Concept (Monetary) |
For Period |
Debit |
agi:TaxEffectOfForeignExchange |
| 561 |
Impact of renouncement of flow through share expenditures |
Concept (Monetary) |
For Period |
Debit |
agi:TaxEffectOfRenouncementofFlowThroughShareExpenditures |
| 562 |
Withholding tax |
Concept (Monetary) |
For Period |
Debit |
agi:TaxEffectOfWithholdingTax |
| 563 |
Change in unrecognized temporary differences |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:TaxBenefitArisingFromPreviouslyUnrecognisedTaxLossTaxCreditOrTemporaryDifferenceOfPriorPeriodUsedToReduceCurrentTaxExpense |
| 564 |
Other |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome |
| 565 |
Income tax expense (recovery) recognized in net (loss) earnings |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxExpenseContinuingOperations |
| 566 |
2412404 - Disclosure - Income Taxes (Schedule of Change in Deferred Income Tax Liabilities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/IncomeTaxesScheduleOfChangeInDeferredIncomeTaxLiabilitiesDetails |
| 567 |
Implied Table |
Table |
* |
* |
implied:Table |
| 568 |
Disclosure of income tax [Abstract] |
Abstract |
|
|
agi:DisclosureofincometaxAbstract |
| 569 |
Reconciliation of changes in deferred tax liability (asset) [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInDeferredTaxLiabilityAssetAbstract |
| 570 |
Balance, beginning of year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 571 |
Deferred income tax liability recognized on Richmont Mines acquisition (note 5) |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughBusinessCombinationsDeferredTaxLiabilityAsset |
| 572 |
Deferred income tax expense (recovery) recognized in net (loss) earnings |
Concept (Monetary) |
For Period |
|
ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss |
| 573 |
Deferred income tax (recovery) expense recognized in OCI |
Concept (Monetary) |
For Period |
|
ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome |
| 574 |
Deferred income tax recovery recognized in equity |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInDeferredTaxLiabilityAsset |
| 575 |
Balance, end of year |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 576 |
2412405 - Disclosure - Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails |
| 577 |
Disclosure of temporary difference, unused tax losses and unused tax credits [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 578 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 579 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 580 |
Accounting value of mineral property, plant and equipment in excess of tax value |
Member |
|
|
agi:MineralPropertyPlantandEquipmentInExcessofTaxValueMember |
| 581 |
Accounting value of inventories in excess of tax value |
Member |
|
|
agi:InventoriesInExcessofTaxValueMember |
| 582 |
Other taxable temporary differences |
Member |
|
|
ifrs-full:OtherTemporaryDifferencesMember |
| 583 |
Non-capital losses carried forward |
Member |
|
|
ifrs-full:UnusedTaxLossesMember |
| 584 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 585 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 586 |
Non-capital losses carried forward |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilities |
| 587 |
Deferred income tax liability |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:DeferredTaxLiabilityAsset |
| 588 |
2412406 - Disclosure - Income Taxes (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/IncomeTaxesNarrativeDetails |
| 589 |
Disclosure of temporary difference, unused tax losses and unused tax credits [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable |
| 590 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 591 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 592 |
Canada [Member] |
Member |
|
|
agi:CA1Member |
| 593 |
Mexico [Member] |
Member |
|
|
agi:MXMember |
| 594 |
United States [Member] |
Member |
|
|
agi:US1Member |
| 595 |
Turkey [Member] |
Member |
|
|
agi:TR1Member |
| 596 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 597 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 598 |
Non-capital losses carried forward |
Member |
|
|
ifrs-full:UnusedTaxLossesMember |
| 599 |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems |
| 600 |
Unused tax losses for which no deferred tax asset recognised |
Concept (Monetary) |
As Of |
|
ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised |
| 601 |
Deductible temporary differences for which no deferred tax asset is recognised |
Concept (Monetary) |
As Of |
Debit |
agi:DeferredTaxAssetsLossCarryforwardsDeductibleTemporaryDifferencesandUnusedTaxCredits |
| 602 |
Unrecognized tax liabilities |
Concept (Monetary) |
As Of |
Credit |
agi:UndistributedEarningsOfForeignSubsidiaries1 |
| 603 |
2413402 - Disclosure - Share Capital (Share Capital) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalShareCapitalDetails |
| 604 |
Disclosure of reserves within equity [table] |
Table |
* |
* |
ifrs-full:DisclosureOfReservesWithinEquityTable |
| 605 |
Components of equity [axis] |
Axis |
|
|
ifrs-full:ComponentsOfEquityAxis |
| 606 |
Equity [member] |
Member |
|
|
ifrs-full:EquityMember |
| 607 |
Issued capital [member] |
Member |
|
|
ifrs-full:IssuedCapitalMember |
| 608 |
Disclosure of reserves within equity [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfReservesWithinEquityLineItems |
| 609 |
Reconciliation of number of shares outstanding [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfNumberOfSharesOutstandingAbstract |
| 610 |
Number of shares outstanding |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 611 |
Beginning balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 612 |
Shares issued through: |
Abstract |
|
|
ifrs-full:NumberOfSharesIssuedAbstract |
| 613 |
Acquisitions (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedAssetAcquisition |
| 614 |
Acquisitions |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueAssetAcquisitions |
| 615 |
Acquisitions (shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedBusinessCombination |
| 616 |
Acquisitions |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueAcquisitions1 |
| 617 |
Equity financing (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedThroughEquityFinancing |
| 618 |
Equity financing |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueEquityFinancing |
| 619 |
Share-based employment compensation plans (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedThroughShareBasedEmploymentCompensationPlans |
| 620 |
Share-based compensation plans |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueEmployeeStockPurchasePlan1 |
| 621 |
Exercise of warrants (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedThroughExerciseofWarrants |
| 622 |
Exercise of warrants |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueWarrantsExercised |
| 623 |
Flow-through share financing (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedThroughFlowThroughShareFinancing |
| 624 |
Flow-through share financing |
Concept (Monetary) |
For Period |
Credit |
agi:StockIssuedDuringPeriodValueIssuedFlowthroughShareAgreement |
| 625 |
Number of shares outstanding |
Concept (Shares) |
As Of |
|
ifrs-full:NumberOfSharesOutstanding |
| 626 |
Ending balance |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 627 |
2413403 - Disclosure - Share Capital (Equity Financing) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalEquityFinancingDetails |
| 628 |
Equity Financing [Table] |
Table |
* |
* |
agi:EquityFinancingTable |
| 629 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 630 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 631 |
Temporary difference, unused tax losses and unused tax credits [axis] |
Axis |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis |
| 632 |
Temporary difference, unused tax losses and unused tax credits [member] |
Member |
|
|
ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember |
| 633 |
Equity Financing [Member] |
Member |
|
|
agi:EquityFinancingMember |
| 634 |
Equity Financing [Line Items] |
LineItems |
|
|
agi:EquityFinancingLineItems |
| 635 |
Equity financing (in shares) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedThroughEquityFinancing |
| 636 |
Share price (usd per share) |
Concept (Share) |
For Period |
|
agi:SharePrice1 |
| 637 |
Gross proceeds from equity financing |
Concept (Monetary) |
For Period |
Debit |
agi:ProceedsFromEquityFinancingGross |
| 638 |
Transaction costs, equity financing |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:PaymentsForShareIssueCosts |
| 639 |
Deferred tax assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:DeferredTaxAssets |
| 640 |
Repurchased and canceled (in shares) |
Concept (Shares) |
For Period |
|
agi:StockRepurchasedandCancellationDuringPeriodShares |
| 641 |
Repurchased and canceled |
Concept (Monetary) |
For Period |
Debit |
agi:StockRepurchasedandCancellationDuringPeriodValue |
| 642 |
Repurchased and canceled (usd per share) |
Concept (Share) |
For Period |
|
agi:StockRepurchasedandCancellationDuringPeriodPricePerShare |
| 643 |
2413404 - Disclosure - Share Capital (Employee LTI plan and share purchase plan) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalEmployeeLtiPlanAndSharePurchasePlanDetails |
| 644 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 645 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 646 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 647 |
Ordinary Class A [Member] |
Member |
|
|
agi:OrdinaryClassAMember |
| 648 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 649 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 650 |
Employee Share Purchase Plan [Member] |
Member |
|
|
agi:EmployeeSharePurchasePlanMember |
| 651 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 652 |
Employee contribution rate |
Concept (Percent) |
As Of |
|
agi:ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate1 |
| 653 |
Employer match |
Concept (Percent) |
For Period |
|
agi:ShareBasedPaymentArrangementEmployerMatchingContributionPercentofMatch |
| 654 |
Maximum number of shares that may be reserved and set aside for issuance under the long-term incentive plan |
Concept (Percent) |
For Period |
|
agi:MaximumNumberofSharesReservedforIssuanceUnderLongTermIncentivePlan |
| 655 |
Issued and outstanding shares (on a non-diluted basis) specifically allocated to the employee share purchase plan |
Concept (Percent) |
For Period |
|
agi:NonDilutedBasisAllocatedtotheEmployeeSharePurchasePlan |
| 656 |
2413405 - Disclosure - Share Capital (Stock Options) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalStockOptionsDetails |
| 657 |
Implied Table |
Table |
* |
* |
implied:Table |
| 658 |
Disclosure of share capital, reserves and other equity interest [Abstract] |
Abstract |
|
|
agi:DisclosureofsharecapitalreservesandotherequityinterestAbstract |
| 659 |
Number of options outstanding |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 660 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 661 |
Conversion shares |
Concept (Shares) |
For Period |
|
agi:NumberOfShareOptionsFromAssetAcquisitionConvertedInSharebasedPaymentArrangement |
| 662 |
Exercised |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 663 |
Expired |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 664 |
Number of options outstanding |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 665 |
Weighted average exercise price of share options outstanding (CAD$) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 666 |
Weighted average exercise price of share options granted (CAD$) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 667 |
Weighted average exercise price of share options conversion of Carlisle options to Alamos (CAD$) |
Concept (Monetary) |
For Period |
Debit |
agi:WeightedAverageExercisePriceOfShareOptionsFromAssetAcquisitionConversionInSharebasedPaymentArrangement |
| 668 |
Weighted average exercise price of share options exercised (CAD$) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement |
| 669 |
Weighted average exercise price of share options expired (CAD$) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement |
| 670 |
Weighted average exercise price of share options outstanding (CAD$) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 671 |
Weighted average share price for share options in share-based payment arrangement exercised during period at date of exercise (CAD$) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsInSharebasedPaymentArrangementExercisedDuringPeriodAtDateOfExercise |
| 672 |
2413406 - Disclosure - Share Capital (Fair Value Assumptions) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalFairValueAssumptionsDetails |
| 673 |
Disclosure of terms and conditions of share-based payment arrangement [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable |
| 674 |
Business combinations [axis] |
Axis |
|
|
ifrs-full:BusinessCombinationsAxis |
| 675 |
Entity's total for business combinations [member] |
Member |
|
|
ifrs-full:EntitysTotalForBusinessCombinationsMember |
| 676 |
Richmont Mines Ltd [Member] |
Member |
|
|
agi:RichmontMinesLtdMember |
| 677 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 678 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 679 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 680 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 681 |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems |
| 682 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement |
| 683 |
Weighted average share price at grant date (CAD$) |
Concept (Monetary) |
For Period |
|
ifrs-full:WeightedAverageSharePriceShareOptionsGranted |
| 684 |
Risk-free rate |
Concept (Percent) |
For Period |
|
ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted |
| 685 |
Expected dividend yield |
Concept (Percent) |
For Period |
|
ifrs-full:ExpectedDividendAsPercentageShareOptionsGranted |
| 686 |
Expected stock price volatility (based on historical volatility) |
Concept (Percent) |
For Period |
|
ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted |
| 687 |
Expected life of option (months) |
Concept (Decimal) |
For Period |
|
ifrs-full:DescriptionOfOptionLifeShareOptionsGranted |
| 688 |
Weighted average per share fair value of stock options granted (CAD$) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted |
| 689 |
2413407 - Disclosure - Share Capital (Schedule of Stock Options Range for Outstanding and Exercisable Shares) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalScheduleOfStockOptionsRangeForOutstandingAndExercisableSharesDetails |
| 690 |
Disclosure of number and weighted average remaining contractual life of outstanding share options [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsTable |
| 691 |
Ranges of exercise prices for outstanding share options [axis] |
Axis |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis |
| 692 |
Ranges of exercise prices for outstanding share options [member] |
Member |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember |
| 693 |
$0.82 - $3.00 |
Member |
|
|
agi:ExercisePriceRangeSixMember |
| 694 |
$3.01 - $7.00 |
Member |
|
|
agi:ExercisePriceRangeOneMember |
| 695 |
$7.01 - $11.00 |
Member |
|
|
agi:ExercisePriceRangeTwoMember |
| 696 |
$11.01 - $15.00 |
Member |
|
|
agi:ExercisePriceRangeThreeMember |
| 697 |
$15.01 - $19.00 |
Member |
|
|
agi:ExercisePriceRangeFourMember |
| 698 |
$19.01 - $23.00 |
Member |
|
|
agi:ExercisePriceRangeFiveMember |
| 699 |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNumberAndWeightedAverageRemainingContractualLifeOfOutstandingShareOptionsLineItems |
| 700 |
Number of options outstanding (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOutstandingShareOptions |
| 701 |
Outstanding weighted average exercise price (CAD per share) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement |
| 702 |
Weighted average remaining contractual life of options outstanding (years) |
Concept (Decimal) |
As Of |
|
ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions |
| 703 |
Number of options exercisable (in shares) |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 704 |
Exercisable weighted average exercise price (CAD per share)) |
Concept (Monetary) |
As Of |
|
ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisableInSharebasedPaymentArrangement |
| 705 |
2413407 - Disclosure - Share Capital (Schedule of Stock Options Range for Outstanding and Exercisable Shares) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalScheduleOfStockOptionsRangeForOutstandingAndExercisableSharesDetails |
| 706 |
Disclosure of range of exercise prices of outstanding share options [table] |
Table |
* |
* |
ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable |
| 707 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 708 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 709 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 710 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 711 |
Ranges of exercise prices for outstanding share options [axis] |
Axis |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis |
| 712 |
Ranges of exercise prices for outstanding share options [member] |
Member |
|
|
ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember |
| 713 |
$0.82 - $3.00 |
Member |
|
|
agi:ExercisePriceRangeSixMember |
| 714 |
$3.01 - $7.00 |
Member |
|
|
agi:ExercisePriceRangeOneMember |
| 715 |
$7.01 - $11.00 |
Member |
|
|
agi:ExercisePriceRangeTwoMember |
| 716 |
$11.01 - $15.00 |
Member |
|
|
agi:ExercisePriceRangeThreeMember |
| 717 |
$15.01 - $19.00 |
Member |
|
|
agi:ExercisePriceRangeFourMember |
| 718 |
$19.01 - $23.00 |
Member |
|
|
agi:ExercisePriceRangeFiveMember |
| 719 |
Disclosure of range of exercise prices of outstanding share options [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems |
| 720 |
Exercise price of outstanding share options |
Concept (Monetary) |
As Of |
|
ifrs-full:ExercisePriceOfOutstandingShareOptions |
| 721 |
2413408 - Disclosure - Share Capital (Other employee long-term incentives) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalOtherEmployeeLongTermIncentivesDetails |
| 722 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 723 |
Types of share-based payment arrangements [axis] |
Axis |
|
|
ifrs-full:TypesOfSharebasedPaymentArrangementsAxis |
| 724 |
Share-based payment arrangements [member] |
Member |
|
|
ifrs-full:SharebasedPaymentArrangementsMember |
| 725 |
Restricted share units (RSU) |
Member |
|
|
agi:RestrictedShareUnitsRSUMember |
| 726 |
Stock appreciation rights (SAR) |
Member |
|
|
agi:StockAppreciationRightsMember |
| 727 |
Deferred share units (DSU) |
Member |
|
|
agi:DeferredShareUnitsDSUMember |
| 728 |
Performance share units (PSU) |
Member |
|
|
agi:PerformanceShareUnitsPSUMember |
| 729 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 730 |
Shares outstanding |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 731 |
Granted |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted |
| 732 |
Conversion of Richmont units to Alamos units (note 5) |
Concept (Shares) |
For Period |
|
agi:NumberofSharesIssuedBusinessCombination |
| 733 |
Forfeiture |
Concept (Decimal) |
For Period |
|
ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement |
| 734 |
Settled |
Concept (Shares) |
For Period |
|
agi:NumberOfOtherEquityInstrumentsSettledInShareBasedPaymentArrangement |
| 735 |
Shares outstanding |
Concept (Decimal) |
As Of |
|
ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement |
| 736 |
2413409 - Disclosure - Share Capital (Earnings (loss) per share) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalEarningsLossPerShareDetails |
| 737 |
Implied Table |
Table |
* |
* |
implied:Table |
| 738 |
Disclosure of share capital, reserves and other equity interest [Abstract] |
Abstract |
|
|
agi:DisclosureofsharecapitalreservesandotherequityinterestAbstract |
| 739 |
Net (loss) earnings |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLoss |
| 740 |
Weighted average number of common shares outstanding (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:WeightedAverageShares |
| 741 |
Basic loss per share (usd per share) |
Concept (Share) |
For Period |
|
ifrs-full:BasicEarningsLossPerShare |
| 742 |
Dilutive effect of potential common share equivalents (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares |
| 743 |
Diluted weighted average number of common shares outstanding (in shares) |
Concept (Shares) |
For Period |
|
ifrs-full:AdjustedWeightedAverageShares |
| 744 |
Diluted loss per share (usd per share) |
Concept (Share) |
For Period |
|
ifrs-full:DilutedEarningsLossPerShare |
| 745 |
2413410 - Disclosure - Share Capital (Antidilutive Securities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalAntidilutiveSecuritiesDetails |
| 746 |
Earnings per share [table] |
Table |
* |
* |
ifrs-full:EarningsPerShareTable |
| 747 |
Antidilutive Securities [Axis] |
Axis |
|
|
agi:AntidilutiveSecuritiesAxis |
| 748 |
Antidilutive Securities [Domain] |
Member |
|
|
agi:AntidilutiveSecuritiesDomain |
| 749 |
Employee Stock Option1 [Member] |
Member |
|
|
agi:EmployeeStockOption1Member |
| 750 |
Equity Settled LTI [Member] |
Member |
|
|
agi:EquitySettledLTIMember |
| 751 |
Warrants [Member] |
Member |
|
|
agi:WarrantsMember |
| 752 |
Earnings per share [line items] |
LineItems |
|
|
ifrs-full:EarningsPerShareLineItems |
| 753 |
Share price (cad per share) |
Concept (Share) |
For Period |
|
agi:SharePrice1 |
| 754 |
Antidilutive securities |
Concept (Shares) |
For Period |
|
agi:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1 |
| 755 |
2413411 - Disclosure - Share Capital (Dividends) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalDividendsDetails |
| 756 |
Implied Table |
Table |
* |
* |
implied:Table |
| 757 |
Disclosure of share capital, reserves and other equity interest [Abstract] |
Abstract |
|
|
agi:DisclosureofsharecapitalreservesandotherequityinterestAbstract |
| 758 |
Dividends paid, ordinary shares |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:DividendsPaidOrdinaryShares |
| 759 |
Dividends paid, ordinary shares per share |
Concept (Share) |
For Period |
|
ifrs-full:DividendsPaidOrdinarySharesPerShare |
| 760 |
2413412 - Disclosure - Share Capital (Share Purchase Warrants) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ShareCapitalSharePurchaseWarrantsDetails |
| 761 |
Disclosure of classes of share capital [table] |
Table |
* |
* |
ifrs-full:DisclosureOfClassesOfShareCapitalTable |
| 762 |
Non-adjusting events after reporting period [axis] |
Axis |
|
|
ifrs-full:NonadjustingEventsAfterReportingPeriodAxis |
| 763 |
Non-adjusting events after reporting period [member] |
Member |
|
|
ifrs-full:NonadjustingEventsMember |
| 764 |
Classes of share capital [axis] |
Axis |
|
|
ifrs-full:ClassesOfShareCapitalAxis |
| 765 |
Share capital [member] |
Member |
|
|
ifrs-full:ClassesOfShareCapitalMember |
| 766 |
Warrants - Carlisle [Member] |
Member |
|
|
agi:WarrantsCarlisleMember |
| 767 |
Disclosure of classes of share capital [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfClassesOfShareCapitalLineItems |
| 768 |
Number of warrants (in shares) |
Concept (Shares) |
As Of |
|
agi:ClassofWarrantorRightOutstanding1 |
| 769 |
Common shares issuable (in shares) |
Concept (Shares) |
As Of |
|
agi:ClassofWarrantorRightNumberofSecuritiesCalledbyEachWarrantorRight1 |
| 770 |
Exercise price (CAD per share) |
Concept (Share) |
For Period |
|
invest:InvestmentWarrantsExercisePrice |
| 771 |
Warrants expired |
Concept (Shares) |
As Of |
|
agi:ClassofWarrantorRightExpired |
| 772 |
Gains on derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 773 |
2414402 - Disclosure - Other (Loss) Gain (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/OtherLossGainDetails |
| 774 |
Implied Table |
Table |
* |
* |
implied:Table |
| 775 |
Other Gain (Loss) [Abstract] |
Abstract |
|
|
agi:OtherGainLossAbstract |
| 776 |
Reduction of obligation to renounce flow-through exploration expenditures |
Concept (Monetary) |
For Period |
Credit |
agi:ReductionofObligationtoRenounceFlowThroughExplorationCosts |
| 777 |
Unrealized gains on non-hedged derivatives |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 778 |
Fair value adjustment on prepayment option embedded derivative |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives |
| 779 |
Loss on disposal of assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:LossesOnDisposalsOfNoncurrentAssets |
| 780 |
Interest income |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:RevenueFromInterest |
| 781 |
Reclamation, care and maintenance |
Concept (Monetary) |
For Period |
Debit |
agi:ReclamationCareandMaintenanceExpenses |
| 782 |
Transaction costs |
Concept (Monetary) |
For Period |
Debit |
agi:TransactionsCosts |
| 783 |
Other |
Concept (Monetary) |
For Period |
Credit |
agi:OtherGainsLossesOther |
| 784 |
Other gains (losses) |
Concept (Monetary) |
For Period |
Credit |
agi:OtherNonoperatingIncomeExpense1 |
| 785 |
2415402 - Disclosure - Supplemental Cash Flow Information (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SupplementalCashFlowInformationDetails |
| 786 |
Implied Table |
Table |
* |
* |
implied:Table |
| 787 |
Disclosure of Cash Flow Statement [Abstract] |
Abstract |
|
|
agi:DisclosureofCashFlowStatementAbstract |
| 788 |
Amounts receivable |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable |
| 789 |
Inventory |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdjustmentsForDecreaseIncreaseInInventories |
| 790 |
Advances and prepaid expenses |
Concept (Monetary) |
For Period |
Debit |
agi:AdjustmentsforAdvancesandPrepaidExpense |
| 791 |
Accounts payable and accrued liabilities |
Concept (Monetary) |
For Period |
Debit |
agi:AdjustmentsforAccountsPayableandAccruedLiabilities1 |
| 792 |
Income taxes (paid) refunded |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncomeTaxesPaidRefund |
| 793 |
Increase (decrease) in working capital |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseInWorkingCapital |
| 794 |
Interest received, classified as investing activities |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:InterestReceivedClassifiedAsInvestingActivities |
| 795 |
Interest received, for the years ended December 31, 2016 and 2015: |
Abstract |
|
|
agi:InterestReceivedAbstract |
| 796 |
2415403 - Disclosure - Supplemental Cash Flow Information (Other Non-cash Items) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SupplementalCashFlowInformationOtherNonCashItemsDetails |
| 797 |
Implied Table |
Table |
* |
* |
implied:Table |
| 798 |
Disclosure of Cash Flow Statement [Abstract] |
Abstract |
|
|
agi:DisclosureofCashFlowStatementAbstract |
| 799 |
Unrealized loss on non-hedging derivatives |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 800 |
Payment for reclamation activities |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives |
| 801 |
Reduction of obligation to renounce flow-through exploration expenditures |
Concept (Monetary) |
For Period |
Credit |
agi:ReductionofObligationtoRenounceFlowThroughExplorationCosts |
| 802 |
Loss on disposal of assets |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:LossesOnDisposalsOfNoncurrentAssets |
| 803 |
Payment of transaction costs incurred by Richmont Mines (note 5) |
Concept (Monetary) |
For Period |
Debit |
agi:NoncashNetRealizableValueAdjustments |
| 804 |
Share-based payments related to Richmont Mines transaction (note 5) |
Concept (Monetary) |
For Period |
Debit |
agi:NoncashGainonTerminationofRetainedInterestRoyalty |
| 805 |
Other non-cash items |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherMaterialNoncashItems |
| 806 |
Other adjustments for non-cash items |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:OtherAdjustmentsForNoncashItems |
| 807 |
2416402 - Disclosure - Segmented Information (Narrative) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SegmentedInformationNarrativeDetails |
| 808 |
Implied Table |
Table |
* |
* |
implied:Table |
| 809 |
Disclosure of entity's operating segments [Abstract] |
Abstract |
|
|
agi:DisclosureofentitysoperatingsegmentsAbstract |
| 810 |
Number of geographical areas |
Concept (Integer) |
As Of |
|
agi:NumberofGeographicalAreas |
| 811 |
2416403 - Disclosure - Segmented Information (Segment revenues and results) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SegmentedInformationSegmentRevenuesAndResultsDetails |
| 812 |
Disclosure of operating segments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 813 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 814 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 815 |
Operating segments [member] |
Member |
|
|
ifrs-full:OperatingSegmentsMember |
| 816 |
Corporate and other [Member] |
Member |
|
|
agi:CorporateNonSegment1Member |
| 817 |
Segments [Axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 818 |
Segments [Domain] |
Member |
|
|
ifrs-full:SegmentsMember |
| 819 |
Young-Davidson [Member] |
Member |
|
|
agi:YoungDavidsonSegmentMember |
| 820 |
Mulatos [Member] |
Member |
|
|
agi:MulatosSegmentMember |
| 821 |
Island Gold [Member] |
Member |
|
|
agi:IslandGoldMember |
| 822 |
El Chanate [Member] |
Member |
|
|
agi:ElChanateSegmentMember |
| 823 |
Disclosure of operating segments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 824 |
Operating revenues |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:Revenue |
| 825 |
Cost of sales |
Abstract |
|
|
agi:CostofSalesAbstract |
| 826 |
Cost of sales |
Concept (Monetary) |
For Period |
Debit |
agi:MiningandProcessing |
| 827 |
Impairment of El Chanate inventory |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ImpairmentLossRecognisedInProfitOrLoss |
| 828 |
Royalties |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RoyaltyExpense |
| 829 |
Amortization |
Concept (Monetary) |
For Period |
Debit |
agi:AmortizationCostofSalesExtractiveActivities |
| 830 |
Cost of sales |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:CostOfSales |
| 831 |
Expenses |
Abstract |
|
|
ifrs-full:ExpenseByNatureAbstract |
| 832 |
Exploration |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources |
| 833 |
Corporate and administrative |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:AdministrativeExpense |
| 834 |
Share-based compensation |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees |
| 835 |
(LOSS) EARNINGS FROM OPERATIONS |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossFromOperatingActivities |
| 836 |
Finance expense |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:FinanceCosts |
| 837 |
Foreign exchange loss |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss |
| 838 |
Other loss |
Concept (Monetary) |
For Period |
Credit |
agi:OtherNonoperatingIncomeExpense1 |
| 839 |
Loss on redemption of senior secured notes |
Concept (Monetary) |
For Period |
Debit |
agi:LossOnRedemptionOfSeniorSecuredNotesAdjustment |
| 840 |
(LOSS) EARNINGS BEFORE INCOME TAXES |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:ProfitLossBeforeTax |
| 841 |
2416404 - Disclosure - Segmented Information (Segment assets and liabilities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/SegmentedInformationSegmentAssetsAndLiabilitiesDetails |
| 842 |
Disclosure of operating segments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfOperatingSegmentsTable |
| 843 |
Segment consolidation items [axis] |
Axis |
|
|
ifrs-full:SegmentConsolidationItemsAxis |
| 844 |
Entity's total for segment consolidation items [member] |
Member |
|
|
ifrs-full:EntitysTotalForSegmentConsolidationItemsMember |
| 845 |
Operating segments [member] |
Member |
|
|
ifrs-full:OperatingSegmentsMember |
| 846 |
Corporate and other [Member] |
Member |
|
|
agi:CorporateNonSegment1Member |
| 847 |
Segments [Axis] |
Axis |
|
|
ifrs-full:SegmentsAxis |
| 848 |
Segments [Domain] |
Member |
|
|
ifrs-full:SegmentsMember |
| 849 |
Young-Davidson [Member] |
Member |
|
|
agi:YoungDavidsonSegmentMember |
| 850 |
Mulatos [Member] |
Member |
|
|
agi:MulatosSegmentMember |
| 851 |
Island Gold [Member] |
Member |
|
|
agi:IslandGoldMember |
| 852 |
El Chanate [Member] |
Member |
|
|
agi:ElChanateSegmentMember |
| 853 |
Disclosure of operating segments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfOperatingSegmentsLineItems |
| 854 |
Total Assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 855 |
Total liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 856 |
2417402 - Disclosure - Financial Instruments and Risk Management (Equity Securities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementEquitySecuritiesDetails |
| 857 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 858 |
Investment [Axis] |
Axis |
|
|
invest:InvestmentAxis |
| 859 |
Investment [Domain] |
Member |
|
|
invest:InvestmentDomain |
| 860 |
AuRico Metals [Member] |
Member |
|
|
agi:AuRicoMetalsMember |
| 861 |
Corex Gold Corp [Member] |
Member |
|
|
agi:CorexGoldCorpMember |
| 862 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 863 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 864 |
Monarques Gold Corp [Member] |
Member |
|
|
agi:MonarquesGoldCorpMember |
| 865 |
Other Investments [Member] |
Member |
|
|
agi:OtherInvestments1Member |
| 866 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 867 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 868 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 869 |
Financial assets available-for-sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAvailableforsale |
| 870 |
Share price (cad per share) |
Concept (Share) |
For Period |
|
agi:SharePrice1 |
| 871 |
Proceeds from sales of investment property |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:ProceedsFromSalesOfInvestmentProperty |
| 872 |
Gains on disposals of investments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsOnDisposalsOfInvestments |
| 873 |
Investment cost per share (cad per share) |
Concept (Share) |
For Period |
|
agi:InvestmentCostPerShare |
| 874 |
2417403 - Disclosure - Financial Instruments and Risk Management (Revolving Credit Facility) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementRevolvingCreditFacilityDetails |
| 875 |
Debt and Financing Obligations [Table] |
Table |
* |
* |
agi:DebtandFinancingObligationsTable |
| 876 |
Types of interest rates [axis] |
Axis |
|
|
ifrs-full:TypesOfInterestRatesAxis |
| 877 |
Interest rate types [member] |
Member |
|
|
ifrs-full:InterestRateTypesMember |
| 878 |
LIBOR [Member] |
Member |
|
|
agi:LondonInterbankOfferedRateLIBOR1Member |
| 879 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 880 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 881 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 882 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 883 |
Borrowings by name [axis] |
Axis |
|
|
ifrs-full:BorrowingsByNameAxis |
| 884 |
Borrowings by name [member] |
Member |
|
|
ifrs-full:BorrowingsByNameMember |
| 885 |
Revolving Credit Facility [Member] |
Member |
|
|
agi:RevolvingCreditFacility1Member |
| 886 |
Revolving Credit Facility - Drawn Amounts [Member] |
Member |
|
|
agi:RevolvingCreditFacilityDrawnAmountsMember |
| 887 |
Debt and Financing Obligations [Line Items] |
LineItems |
|
|
agi:DebtandFinancingObligationsLineItems |
| 888 |
Line of credit facility, maximum borrowing capacity |
Concept (Monetary) |
As Of |
Credit |
agi:LineofCreditFacilityMaximumBorrowingCapacity1 |
| 889 |
Borrowings, adjustment to interest rate basis |
Concept (Percent) |
As Of |
|
ifrs-full:BorrowingsAdjustmentToInterestRateBasis |
| 890 |
Commitment fee |
Concept (Percent) |
As Of |
|
agi:LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage1 |
| 891 |
Minimum interest coverage ratio |
Concept (Pure) |
For Period |
|
agi:MinimumInterestCoverageRatio |
| 892 |
Maximum net leverage ratio |
Concept (Pure) |
For Period |
|
agi:MaximumNetLeverageRatio |
| 893 |
Borrowing costs incurred |
Concept (Monetary) |
For Period |
|
ifrs-full:BorrowingCostsIncurred |
| 894 |
2417404 - Disclosure - Financial Instruments and Risk Management (Fair Value for Assets and Liabilities) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementFairValueForAssetsAndLiabilitiesDetails |
| 895 |
Disclosure of fair value measurement of assets [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable |
| 896 |
Categories of financial assets [axis] |
Axis |
|
|
ifrs-full:CategoriesOfFinancialAssetsAxis |
| 897 |
Financial assets, category [member] |
Member |
|
|
ifrs-full:FinancialAssetsCategoryMember |
| 898 |
Fair value through profit or loss |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughProfitOrLossCategoryMember |
| 899 |
Fair value through OCI |
Member |
|
|
ifrs-full:FinancialAssetsAtFairValueThroughOtherComprehensiveIncomeCategoryMember |
| 900 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 901 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 902 |
Gold Options [Member] |
Member |
|
|
agi:GoldOptionsMember |
| 903 |
Trading securities [member] |
Member |
|
|
ifrs-full:TradingSecuritiesMember |
| 904 |
Currency Hedging Derivative Instruments [Member] |
Member |
|
|
agi:CurrencyHedgingDerivativeInstrumentsMember |
| 905 |
Classes of financial liabilities [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialLiabilitiesAxis |
| 906 |
Financial liabilities, class [member] |
Member |
|
|
ifrs-full:FinancialLiabilitiesMember |
| 907 |
Share Purchase Warrants [Member] |
Member |
|
|
agi:SharePurchaseWarrantsMember |
| 908 |
Currency Derivative Instruments [Member] |
Member |
|
|
agi:CurrencyDerivativeInstrumentsMember |
| 909 |
Fuel Options [Member] |
Member |
|
|
agi:FuelOptionsMember |
| 910 |
Levels of fair value hierarchy [axis] |
Axis |
|
|
ifrs-full:LevelsOfFairValueHierarchyAxis |
| 911 |
All levels of fair value hierarchy [member] |
Member |
|
|
ifrs-full:AllLevelsOfFairValueHierarchyMember |
| 912 |
Level 1 [member] |
Member |
|
|
ifrs-full:Level1OfFairValueHierarchyMember |
| 913 |
Level 2 [member] |
Member |
|
|
ifrs-full:Level2OfFairValueHierarchyMember |
| 914 |
Measurement [axis] |
Axis |
|
|
ifrs-full:MeasurementAxis |
| 915 |
Aggregated measurement [member] |
Member |
|
|
ifrs-full:AggregatedMeasurementMember |
| 916 |
Recurring fair value measurement [member] |
Member |
|
|
ifrs-full:RecurringFairValueMeasurementMember |
| 917 |
Disclosure of fair value measurement of assets [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems |
| 918 |
Financial assets |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:Assets |
| 919 |
Financial liabilities |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Liabilities |
| 920 |
Fair value, net asset (liability) |
Concept (Monetary) |
As Of |
Debit |
agi:FairValueNetAssetLiability1 |
| 921 |
2417405 - Disclosure - Financial Instruments and Risk Management (Fair Value And Presentation in the Balance Sheet) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementFairValueAndPresentationInBalanceSheetDetails |
| 922 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 923 |
Classes of financial assets [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialAssetsAxis |
| 924 |
Financial assets, class [member] |
Member |
|
|
ifrs-full:FinancialAssetsMember |
| 925 |
Derivatives [member] |
Member |
|
|
ifrs-full:DerivativesMember |
| 926 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 927 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 928 |
Currency Hedging Derivative Instruments [Member] |
Member |
|
|
agi:CurrencyHedgingDerivativeInstrumentsMember |
| 929 |
Fuel Options [Member] |
Member |
|
|
agi:FuelOptionsMember |
| 930 |
Gold Options [Member] |
Member |
|
|
agi:GoldOptionsMember |
| 931 |
Share Purchase Warrants [Member] |
Member |
|
|
agi:SharePurchaseWarrantsMember |
| 932 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 933 |
Financial assets, at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAtFairValue |
| 934 |
Financial liabilities, at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilitiesAtFairValue |
| 935 |
2417406 - Disclosure - Financial Instruments and Risk Management (Hedging Instruments Recorded in AOCI) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementHedgingInstrumentsRecordedInAociDetails |
| 936 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 937 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 938 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 939 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 940 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 941 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 942 |
Fair value hedges [member] |
Member |
|
|
ifrs-full:FairValueHedgesMember |
| 943 |
Hedged items [axis] |
Axis |
|
|
ifrs-full:HedgedItemsAxis |
| 944 |
Hedged items [member] |
Member |
|
|
ifrs-full:HedgedItemsMember |
| 945 |
CAD Currency Instruments [Member] |
Member |
|
|
agi:CADCurrencyInstrumentsMember |
| 946 |
MXN Currency Instruments [Member] |
Member |
|
|
agi:MXNCurrencyInstrumentsMember |
| 947 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 948 |
Reconciliation of changes in allowance account for credit losses of financial assets [abstract] |
Abstract |
|
|
ifrs-full:ReconciliationOfChangesInAllowanceAccountForCreditLossesOfFinancialAssetsAbstract |
| 949 |
Balance, beginning of the period |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 950 |
Unrealized (loss) gains on currency instruments |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:IncreaseDecreaseThroughNetExchangeDifferencesAllowanceAccountForCreditLossesOfFinancialAssets |
| 951 |
Deferred income tax related to hedging instrument |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:IncomeTaxRelatingToHedgesOfInvestmentsInEquityInstrumentsOfOtherComprehensiveIncome |
| 952 |
Balance, June 30, 2017 |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:AllowanceAccountForCreditLossesOfFinancialAssets |
| 953 |
2417407 - Disclosure - Financial Instruments and Risk Management (Currency Contracts) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementCurrencyContractsDetails |
| 954 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 955 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 956 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 957 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 958 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 959 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 960 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 961 |
2018 [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 962 |
2019 [member] |
Member |
|
|
ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember |
| 963 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 964 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 965 |
Collars [Member] |
Member |
|
|
agi:CollarsMember |
| 966 |
Forward contract [member] |
Member |
|
|
ifrs-full:ForwardContractMember |
| 967 |
Collars and Forwards [Member] |
Member |
|
|
agi:CollarsandForwardsMember |
| 968 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 969 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 970 |
Commodity price risk [member] |
Member |
|
|
ifrs-full:CommodityPriceRiskMember |
| 971 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 972 |
Market risk [member] |
Member |
|
|
ifrs-full:MarketRiskMember |
| 973 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 974 |
Notional amount |
Concept (Monetary) |
As Of |
|
ifrs-full:NotionalAmount |
| 975 |
Average rate of hedging instrument |
Concept (Percent) |
As Of |
|
ifrs-full:AverageRateOfHedgingInstrument |
| 976 |
Forward price (usd per cad) |
Concept (Share) |
As Of |
|
agi:ForwardPrice |
| 977 |
Financial assets, at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAtFairValue |
| 978 |
Financial liabilities, at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilitiesAtFairValue |
| 979 |
Gains (losses) on change in fair value of derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 980 |
Prices specified in forward agreements to purchase financial assets for cash |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:PricesSpecifiedInForwardAgreementsToPurchaseFinancialAssetsForCash |
| 981 |
2417408 - Disclosure - Financial Instruments and Risk Management (Unrealized Gains (Losses) on Foreign Currency Contracts) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementUnrealizedGainsLossesOnForeignCurrencyContractsDetails |
| 982 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 983 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 984 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 985 |
Foreign Currency [Member] |
Member |
|
|
agi:ForeignCurrencyMember |
| 986 |
Hedging Designation1 [Axis] |
Axis |
|
|
agi:HedgingDesignation1Axis |
| 987 |
Hedging Designation1 [Domain] |
Member |
|
|
agi:HedgingDesignation1Domain |
| 988 |
Designated as Hedging Instrument [Member] |
Member |
|
|
agi:DesignatedasHedgingInstrument1Member |
| 989 |
Not Designated as Hedging Instrument [Member] |
Member |
|
|
agi:NotDesignatedasHedgingInstrument1Member |
| 990 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 991 |
Unrealized gains |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 992 |
2417409 - Disclosure - Financial Instruments and Risk Management (Gold Option Contracts) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementGoldOptionContractsDetails |
| 993 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 994 |
Continuing involvement in derecognised financial assets by type of instrument [axis] |
Axis |
|
|
ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis |
| 995 |
Types of instrument [member] |
Member |
|
|
ifrs-full:TypesOfInstrumentMember |
| 996 |
Purchase Put Options [Member] |
Member |
|
|
agi:PurchasePutOptionsMember |
| 997 |
Sold Call Option [Member] |
Member |
|
|
agi:SoldCallOptionMember |
| 998 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 999 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1000 |
Gold Options [Member] |
Member |
|
|
agi:GoldOptionsMember |
| 1001 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1002 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1003 |
2018 [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1004 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1005 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1006 |
Commodity price risk [member] |
Member |
|
|
ifrs-full:CommodityPriceRiskMember |
| 1007 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 1008 |
Average realized price per ounce |
Concept (Decimal) |
For Period |
|
agi:AverageRealizedPricePerOunce |
| 1009 |
Ounces subject to contract |
Concept (num:massItemType) |
As Of |
|
agi:OuncesSubjecttoContract |
| 1010 |
Financial assets, at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAtFairValue |
| 1011 |
Gains (losses) on change in fair value of derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 1012 |
Unrealized gains |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 1013 |
2417410 - Disclosure - Financial Instruments and Risk Management (Fuel Option Contracts) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementFuelOptionContractsDetails |
| 1014 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 1015 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1016 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1017 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1018 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1019 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 1020 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1021 |
Fuel Options [Member] |
Member |
|
|
agi:FuelOptionsMember |
| 1022 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1023 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1024 |
Commodity price risk [member] |
Member |
|
|
ifrs-full:CommodityPriceRiskMember |
| 1025 |
Types of hedges [axis] |
Axis |
|
|
ifrs-full:TypesOfHedgesAxis |
| 1026 |
Hedges [member] |
Member |
|
|
ifrs-full:TypesOfHedgesMember |
| 1027 |
Hedged items [axis] |
Axis |
|
|
ifrs-full:HedgedItemsAxis |
| 1028 |
Hedged items [member] |
Member |
|
|
ifrs-full:HedgedItemsMember |
| 1029 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 1030 |
Derivative, notional amount |
Concept (Monetary) |
As Of |
|
invest:DerivativeNotionalAmount |
| 1031 |
Average price of hedging instrument |
Concept (Decimal) |
As Of |
|
ifrs-full:AveragePriceOfHedgingInstrument |
| 1032 |
Gains (losses) on change in fair value of derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 1033 |
2417411 - Disclosure - Financial Instruments and Risk Management (Market Price Risk) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementMarketPriceRiskDetails |
| 1034 |
Disclosure of detailed information about hedged items [table] |
Table |
* |
* |
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsTable |
| 1035 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1036 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1037 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1038 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1039 |
Continuing involvement in derecognised financial assets by type of instrument [axis] |
Axis |
|
|
ifrs-full:ContinuingInvolvementInDerecognisedFinancialAssetsByTypeOfInstrumentAxis |
| 1040 |
Types of instrument [member] |
Member |
|
|
ifrs-full:TypesOfInstrumentMember |
| 1041 |
Purchase Put Options [Member] |
Member |
|
|
agi:PurchasePutOptionsMember |
| 1042 |
Sold Call Option [Member] |
Member |
|
|
agi:SoldCallOptionMember |
| 1043 |
Hedging instruments [axis] |
Axis |
|
|
ifrs-full:HedgingInstrumentsAxis |
| 1044 |
Hedging instruments [member] |
Member |
|
|
ifrs-full:HedgingInstrumentsMember |
| 1045 |
Gold Options [Member] |
Member |
|
|
agi:GoldOptionsMember |
| 1046 |
Silver Forward Contracts [Member] |
Member |
|
|
agi:SilverForwardContractsMember |
| 1047 |
Maturity [axis] |
Axis |
|
|
ifrs-full:MaturityAxis |
| 1048 |
Aggregated time bands [member] |
Member |
|
|
ifrs-full:AggregatedTimeBandsMember |
| 1049 |
2018 [member] |
Member |
|
|
ifrs-full:NotLaterThanOneYearMember |
| 1050 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1051 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1052 |
Market risk [member] |
Member |
|
|
ifrs-full:MarketRiskMember |
| 1053 |
Disclosure of detailed information about hedged items [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfDetailedInformationAboutHedgedItemsLineItems |
| 1054 |
Average realized price per ounce |
Concept (Decimal) |
For Period |
|
agi:AverageRealizedPricePerOunce |
| 1055 |
Potential percentage change in value |
Concept (Percent) |
For Period |
|
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent |
| 1056 |
Impact on pre-tax earnings |
Concept (Monetary) |
For Period |
Credit |
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnPreTaxEarnings |
| 1057 |
Ounces subject to contract |
Concept (num:massItemType) |
As Of |
|
agi:OuncesSubjecttoContract |
| 1058 |
Financial assets, at fair value |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAtFairValue |
| 1059 |
Gains (losses) on change in fair value of derivatives |
Concept (Monetary) |
For Period |
Credit |
ifrs-full:GainsLossesOnChangeInFairValueOfDerivatives |
| 1060 |
Unrealized gains |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 1061 |
Impact on other comprehensive income |
Concept (Monetary) |
For Period |
Credit |
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnOtherComprehensiveIncome |
| 1062 |
2417412 - Disclosure - Financial Instruments and Risk Management (Interest Rate Risk) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementInterestRateRiskDetails |
| 1063 |
Disclosure of nature and extent of risks arising from financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable |
| 1064 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1065 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1066 |
Interest rate risk [member] |
Member |
|
|
ifrs-full:InterestRateRiskMember |
| 1067 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems |
| 1068 |
Potential percentage change in value |
Concept (Percent) |
For Period |
|
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent |
| 1069 |
Impact on interest earned |
Concept (Monetary) |
For Period |
Credit |
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnInterestIncome |
| 1070 |
2417413 - Disclosure - Financial Instruments and Risk Management (Foreign Currency Exchange Rate Risk) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementForeignCurrencyExchangeRateRiskDetails |
| 1071 |
Disclosure of nature and extent of risks arising from financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable |
| 1072 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 1073 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 1074 |
Cash and Cash Equivalents [Member] |
Member |
|
|
agi:CashandCashEquivalentsMember |
| 1075 |
Equity Securities [Member] |
Member |
|
|
agi:EquitySecurities1Member |
| 1076 |
Trade receivables [member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 1077 |
Other monetary assets [member] |
Member |
|
|
ifrs-full:OtherAssetsMember |
| 1078 |
Accounts Payable And Accrued Liabilities [Member] |
Member |
|
|
agi:AccountsPayableAndAccruedLiabilities1Member |
| 1079 |
Current portion of financing obligations [Member] |
Member |
|
|
agi:BorrowingsCurrentMember |
| 1080 |
Financial Obligations [Member] |
Member |
|
|
agi:FinancialObligationsMember |
| 1081 |
Range [axis] |
Axis |
|
|
ifrs-full:RangeAxis |
| 1082 |
Ranges [member] |
Member |
|
|
ifrs-full:RangesMember |
| 1083 |
Bottom of range [member] |
Member |
|
|
ifrs-full:BottomOfRangeMember |
| 1084 |
Top of range [member] |
Member |
|
|
ifrs-full:TopOfRangeMember |
| 1085 |
Currency1 [Axis] |
Axis |
|
|
agi:Currency1Axis |
| 1086 |
Currency1 [Domain] |
Member |
|
|
agi:Currency1Domain |
| 1087 |
Canadian dollar |
Member |
|
|
currency:CAD |
| 1088 |
Mexican peso |
Member |
|
|
currency:MXN |
| 1089 |
Types of risks [axis] |
Axis |
|
|
ifrs-full:TypesOfRisksAxis |
| 1090 |
Risks [member] |
Member |
|
|
ifrs-full:TypesOfRisksMember |
| 1091 |
Currency risk [member] |
Member |
|
|
ifrs-full:CurrencyRiskMember |
| 1092 |
Disclosure of nature and extent of risks arising from financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems |
| 1093 |
Total financial instrument exposure to credit risk |
Concept (Monetary) |
As Of |
|
ifrs-full:MaximumExposureToCreditRisk |
| 1094 |
Notional amount |
Concept (Monetary) |
As Of |
|
ifrs-full:NotionalAmount |
| 1095 |
Potential percentage change in value |
Concept (Percent) |
For Period |
|
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariablePercent |
| 1096 |
Impact on pre-tax earnings |
Concept (Monetary) |
For Period |
Credit |
agi:SensitivityAnalysisForTypesOfMarketRiskReasonablyPossibleChangeInRiskVariableImpactOnPreTaxEarnings |
| 1097 |
Financial liabilities, at fair value |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:FinancialLiabilitiesAtFairValue |
| 1098 |
Unrealized gains |
Concept (Monetary) |
For Period |
Debit |
agi:UnrealizedGainLossonDerivatives1 |
| 1099 |
2417414 - Disclosure - Financial Instruments and Risk Management (Credit Risk) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementCreditRiskDetails |
| 1100 |
Disclosure of detailed information about financial instruments [table] |
Table |
* |
* |
ifrs-full:DisclosureOfFinancialInstrumentsTable |
| 1101 |
Classes of financial instruments [axis] |
Axis |
|
|
ifrs-full:ClassesOfFinancialInstrumentsAxis |
| 1102 |
Financial instruments, class [member] |
Member |
|
|
ifrs-full:ClassesOfFinancialInstrumentsMember |
| 1103 |
Cash and Cash Equivalents [Member] |
Member |
|
|
agi:CashandCashEquivalentsMember |
| 1104 |
Concentrate Receivable [Member] |
Member |
|
|
agi:ConcentrateReceivableMember |
| 1105 |
Trade receivables [member] |
Member |
|
|
ifrs-full:TradeReceivablesMember |
| 1106 |
Disclosure of detailed information about financial instruments [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsLineItems |
| 1107 |
Total financial instrument exposure to credit risk |
Concept (Monetary) |
As Of |
|
ifrs-full:MaximumExposureToCreditRisk |
| 1108 |
2417415 - Disclosure - Financial Instruments and Risk Management (Contractual Commitments) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementContractualCommitmentsDetails |
| 1109 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1110 |
Disclosure of detailed information about financial instruments [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfFinancialInstrumentsAbstract |
| 1111 |
Operating and financing leases, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:OperatingandFinancingLeasesFutureMinimumPaymentsDueNextTwelveMonths |
| 1112 |
Operating and financing leases, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:OperatingandFinancingLeasesFutureMinimumPaymentsDueinTwoandThreeYears |
| 1113 |
Operating and financing leases, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:OperatingandFinancingLeasesFutureMinimumPaymentsDueinFourandFiveYears |
| 1114 |
Operating and financing leases, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:OperatingandFinancingLeasesFutureMinimumPaymentsDueThereafter |
| 1115 |
Operating and financing leases, total |
Concept (Monetary) |
As Of |
Credit |
agi:OperatingandFinancingLeasesFutureMinimumPaymentsDue |
| 1116 |
Accounts payable and accrued liabilities, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:AccountsPayableandAccruedLiabilitiesRepaymentsinNextTwelveMonths |
| 1117 |
Accounts payable and accrued liabilities, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:AccountsPayableandAccruedLiabilitiesMaturinginYearsTwoandThree |
| 1118 |
Accounts payable and accrued liabilities, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:AccountsPayableandAccruedLiabilitiesMaturinginYearsFourandFive |
| 1119 |
Accounts payable and accrued liabilities, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:AccountsPayableandAccruedLiabilitiesMaturitiesRepaymentsofPrincipalafterYearFive |
| 1120 |
Accounts payable and accrued liabilities, total |
Concept (Monetary) |
As Of |
Credit |
agi:AccountsPayableandAccruedLiabilities |
| 1121 |
Decommissioning liability, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:LongtermProvisionForDecommissioningRestorationAndRehabilitationCostsRepaymentsofPrincipalinNextTwelveMonths |
| 1122 |
Decommissioning liability, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:LongtermProvisionForDecommissioningRestorationAndRehabilitationCostsMaturinginYearsTwoandThree |
| 1123 |
Decommissioning liability, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:LongtermProvisionForDecommissioningRestorationAndRehabilitationCostsMaturinginYearsFourandFive |
| 1124 |
Decommissioning liability, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:LongtermProvisionForDecommissioningRestorationAndRehabilitationCostsMaturitiesRepaymentsofPrincipalafterYearFive |
| 1125 |
Decommissioning liability, total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ProvisionForDecommissioningRestorationAndRehabilitationCosts |
| 1126 |
Contract mining, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:ContractMiningRepaymentsinNextTwelveMonths |
| 1127 |
Contract mining, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractMiningMaturinginYearsTwoandThree |
| 1128 |
Contract mining, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractMiningMaturinginYearsFourandFive |
| 1129 |
Contract mining, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractMiningMaturitiesRepaymentsofPrincipalafterYearFive |
| 1130 |
Contract mining, total |
Concept (Monetary) |
As Of |
Credit |
agi:ContractMining |
| 1131 |
Capital commitments, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:CapitalCommitmentsFutureMinimumPaymentsDueNextTwelveMonths |
| 1132 |
Capital commitments, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:CapitalCommitmentsFutureMinimumPaymentsDueinTwoandThreeYears |
| 1133 |
Capital commitments, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:CapitalCommitmentsFutureMinimumPaymentsDueinFourandFiveYears |
| 1134 |
Capital commitments, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:CapitalCommitmentsFutureMinimumPaymentsDueThereafter |
| 1135 |
Capital commitments, total |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CapitalCommitments |
| 1136 |
Contractual obligation, less than 1 year |
Concept (Monetary) |
As Of |
Credit |
agi:ContractualObligationFutureMinimumPaymentsDueRemainderofFiscalYear |
| 1137 |
Contractual obligation, 2-3 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractualObligationDueinSecondandThirdYear |
| 1138 |
Contractual obligation, 4-5 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractualObligationDueinFourthandFifthYear |
| 1139 |
Contractual obligation, more than 5 years |
Concept (Monetary) |
As Of |
Credit |
agi:ContractualObligationDueafterFifthYear |
| 1140 |
Contractual obligation, total |
Concept (Monetary) |
As Of |
Credit |
agi:ContractualObligation1 |
| 1141 |
2417416 - Disclosure - Financial Instruments and Risk Management (Available for Sale Financial Assets) (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/FinancialInstrumentsAndRiskManagementAvailableForSaleFinancialAssetsDetails |
| 1142 |
Investment [Table] |
Table |
* |
* |
invest:InvestmentTable |
| 1143 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 1144 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 1145 |
AuRico Metals [Member] |
Member |
|
|
agi:AuRicoMetalsMember |
| 1146 |
Corex Gold Corp [Member] |
Member |
|
|
agi:CorexGoldCorpMember |
| 1147 |
Monarques Gold Corp [Member] |
Member |
|
|
agi:MonarquesGoldCorpMember |
| 1148 |
Other Investments [Member] |
Member |
|
|
agi:OtherInvestments1Member |
| 1149 |
Investment [Line Items] |
LineItems |
|
|
invest:InvestmentLineItems |
| 1150 |
Financial assets available-for-sale |
Concept (Monetary) |
As Of |
Debit |
ifrs-full:FinancialAssetsAvailableforsale |
| 1151 |
2418402 - Disclosure - Management of Capital (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/ManagementOfCapitalDetails |
| 1152 |
Implied Table |
Table |
* |
* |
implied:Table |
| 1153 |
Disclosure of objectives, policies and processes for managing capital [abstract] |
Abstract |
|
|
ifrs-full:DisclosureOfObjectivesPoliciesAndProcessesForManagingCapitalAbstract |
| 1154 |
Shareholder's equity |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:Equity |
| 1155 |
Current portion of financing obligations (note 10) |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:CurrentBorrowingsAndCurrentPortionOfNoncurrentBorrowings |
| 1156 |
Non-current portion of non-current borrowings |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:LongtermBorrowings |
| 1157 |
Managed capital |
Concept (Monetary) |
As Of |
Credit |
agi:ManagedCapitalEquityDebtandFinancingObligations |
| 1158 |
2419402 - Disclosure - Related Party Transactions (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/RelatedPartyTransactionsDetails |
| 1159 |
Disclosure of transactions between related parties [table] |
Table |
* |
* |
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesTable |
| 1160 |
Categories of related parties [axis] |
Axis |
|
|
ifrs-full:CategoriesOfRelatedPartiesAxis |
| 1161 |
Entity's total for related parties [member] |
Member |
|
|
ifrs-full:EntitysTotalForRelatedPartiesMember |
| 1162 |
Company's directors and executive team [member] |
Member |
|
|
ifrs-full:KeyManagementPersonnelOfEntityOrParentMember |
| 1163 |
Disclosure of transactions between related parties [line items] |
LineItems |
|
|
ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesLineItems |
| 1164 |
Short-term employee benefits |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits |
| 1165 |
Share-based payments |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment |
| 1166 |
Amounts payable, related party transactions |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:KeyManagementPersonnelCompensation |
| 1167 |
2420401 - Disclosure - Commitments (Details) |
Network |
* |
* |
http://www.alamosgold.com/role/CommitmentsDetails |
| 1168 |
Commitments [Table] |
Table |
* |
* |
agi:CommitmentsTable |
| 1169 |
Counterparty, Claim [Axis] |
Axis |
|
|
agi:CounterpartyClaimAxis |
| 1170 |
Counterparty, Claim [Domain] |
Member |
|
|
agi:CounterpartyClaimDomain |
| 1171 |
Lochalsh [Member] |
Member |
|
|
agi:LochalshMember |
| 1172 |
Goudreau [Member] |
Member |
|
|
agi:GoudreauMember |
| 1173 |
Goudreau Lake [Member] |
Member |
|
|
agi:GoudreauLakeMember |
| 1174 |
Geographical areas [axis] |
Axis |
|
|
ifrs-full:GeographicalAreasAxis |
| 1175 |
Geographical areas [member] |
Member |
|
|
ifrs-full:GeographicalAreasMember |
| 1176 |
Turkey [Member] |
Member |
|
|
agi:TR1Member |
| 1177 |
Royalty Agreements [Axis] |
Axis |
|
|
agi:RoyaltyAgreementsAxis |
| 1178 |
Royalty Agreements [Domain] |
Member |
|
|
agi:RoyaltyAgreementsDomain |
| 1179 |
Production Royalty [Member] |
Member |
|
|
agi:ProductionRoyaltyMember |
| 1180 |
Net Smelter Royalty [Member] |
Member |
|
|
agi:NetSmelterRoyaltyMember |
| 1181 |
Other Royalties [Member] |
Member |
|
|
agi:OtherRoyaltiesMember |
| 1182 |
Net Profit Interest [Member] |
Member |
|
|
agi:NetProfitInterestMember |
| 1183 |
State Royalty [Member] |
Member |
|
|
agi:StateRoyaltyMember |
| 1184 |
Counterparties [axis] |
Axis |
|
|
ifrs-full:CounterpartiesAxis |
| 1185 |
Counterparties [member] |
Member |
|
|
ifrs-full:CounterpartiesMember |
| 1186 |
Royal Gold [Member] |
Member |
|
|
agi:RoyalGoldMember |
| 1187 |
AuRico Metals [Member] |
Member |
|
|
agi:AuRicoMetalsMember |
| 1188 |
Island Gold [Member] |
Member |
|
|
agi:IslandGoldMember |
| 1189 |
Third Party [Member] |
Member |
|
|
agi:ThirdPartyMember |
| 1190 |
Commitments [Line Items] |
LineItems |
|
|
agi:CommitmentsLineItems |
| 1191 |
Capital purchases commitments |
Concept (Monetary) |
As Of |
Credit |
ifrs-full:ContractualCapitalCommitments |
| 1192 |
Royalty rate |
Concept (Percent) |
As Of |
|
agi:RoyaltyRate |
| 1193 |
Quantity of production subject to royalty |
Concept (num:massItemType) |
As Of |
|
agi:QuantityofProductionSubjecttoRoyalty |
| 1194 |
Actual production quantity |
Concept (num:massItemType) |
As Of |
|
agi:ActualProductionQuantity |
| 1195 |
Royalties |
Concept (Monetary) |
For Period |
Debit |
ifrs-full:RoyaltyExpense |
| 1196 |
Extraordinary mining duty tax |
Concept (Monetary) |
For Period |
Debit |
agi:ExtraordinaryMiningDutyTax |