ELDORADO GOLD CORP /FI (SEC Filing Page | XBRL Cloud Viewer | XBRL Instance)

Line Label Object Class Period Type Balance Report ElementName
1 0001000 - Document - Document and Entity Information Network

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3 Document - Document and Entity Information [Abstract] Abstract ego:DocumentandEntityInformationAbstract
4 Document Type Concept (Submission Type) For Period dei:DocumentType
5 Amendment Flag Concept (Yes/No) For Period dei:AmendmentFlag
6 Document Period End Date Concept (Date) For Period dei:DocumentPeriodEndDate
7 Document Fiscal Year Focus Concept (Year) For Period dei:DocumentFiscalYearFocus
8 Document Fiscal Period Focus Concept (Fiscal Period) For Period dei:DocumentFiscalPeriodFocus
9 Trading Symbol Concept (Text/String) For Period dei:TradingSymbol
10 Entity Registrant Name Concept (Text/String) For Period dei:EntityRegistrantName
11 Entity Central Index Key Concept (CIK Number) For Period dei:EntityCentralIndexKey
12 Current Fiscal Year End Date Concept (Month/Day) For Period dei:CurrentFiscalYearEndDate
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21 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
22 Term deposits Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsNotClassifiedAsCashEquivalents
23 Restricted cash Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
24 Marketable securities Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
25 Accounts receivable and other Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
26 Inventories Concept (Monetary) As Of Debit ifrs-full:Inventories
27 Total current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
28 Restricted cash Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
29 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherAssets
30 Defined benefit pension plan Concept (Monetary) As Of Debit ifrs-full:NoncurrentRecognisedAssetsDefinedBenefitPlan
31 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
32 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
33 Total assets Concept (Monetary) As Of Debit ifrs-full:Assets
34 LIABILITIES & EQUITY Abstract ifrs-full:LiabilitiesAbstract
35 Current liabilities Abstract ifrs-full:CurrentLiabilitiesAbstract
36 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
37 Current portion of asset retirement obligations Concept (Monetary) As Of Credit ego:AssetRetirementObligationsCurrent
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39 Debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
40 Lease liability Concept (Monetary) As Of Credit ifrs-full:LeaseLiabilities
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42 Asset retirement obligations Concept (Monetary) As Of Credit ego:AssetRetirementObligationsNonCurrent1
43 Deferred income tax liabilities Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilities
44 Total liabilities Concept (Monetary) As Of Credit ifrs-full:Liabilities
45 Equity Abstract ifrs-full:EquityAbstract
46 Share capital Concept (Monetary) As Of Credit ifrs-full:IssuedCapital
47 Treasury stock Concept (Monetary) As Of Debit ifrs-full:TreasuryShares
48 Contributed surplus Concept (Monetary) As Of Credit ego:ContributedSurplus
49 Accumulated other comprehensive loss Concept (Monetary) As Of Credit ifrs-full:AccumulatedOtherComprehensiveIncome
50 Deficit Concept (Monetary) As Of Credit ifrs-full:RetainedEarnings
51 Total equity attributable to shareholders of the Company Concept (Monetary) As Of Credit ifrs-full:EquityAttributableToOwnersOfParent
52 Attributable to non-controlling interests Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
53 Equity Concept (Monetary) As Of Credit ifrs-full:Equity
54 Total liabilities and equity Concept (Monetary) As Of Credit ifrs-full:EquityAndLiabilities
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56 Implied Table Table

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57 Profit or loss [abstract] Abstract ifrs-full:IncomeStatementAbstract
58 Revenue Abstract ifrs-full:RevenueAbstract
59 Metal sales Concept (Monetary) For Period Credit ifrs-full:Revenue
60 Cost of sales Abstract ego:CostOfSalesAbstract
61 Production costs Concept (Monetary) For Period Debit ego:ProductionCosts1
62 Inventory write-down Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
63 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
64 Cost of sales Concept (Monetary) For Period Debit ifrs-full:CostOfSales
65 Earnings from mine operations Concept (Monetary) For Period Credit ifrs-full:GrossProfit
66 Exploration and evaluation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
67 Mine standby costs Concept (Monetary) For Period Debit ego:MineStandbyCosts
68 Other operating items Concept (Monetary) For Period Credit ifrs-full:OtherOperatingIncomeExpense
69 General and administrative expenses Concept (Monetary) For Period Debit ifrs-full:SellingGeneralAndAdministrativeExpense
70 Acquisition costs Concept (Monetary) For Period Debit ego:AcquisitionRelatedCosts
71 Defined benefit pension plan expense Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
72 Share based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
73 Impairment of property, plant, and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
74 Other write-down of assets Concept (Monetary) For Period Debit ego:WriteDownOfAssets
75 Foreign exchange loss (gain) Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
76 Loss from operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromOperatingActivities
77 Gain (loss) on disposal of assets Concept (Monetary) For Period Debit ifrs-full:LossesOnDisposalsOfNoncurrentAssets
78 Gain on derivatives and other investments Concept (Monetary) For Period Credit ego:GainLossOnMarketableSecuritiesAndOtherInvestments
79 Other income Concept (Monetary) For Period Credit ifrs-full:OtherIncome
80 Asset retirement obligation accretion Concept (Monetary) For Period Debit ego:AssetRetirementObligationsAccretionExpense
81 Interest and financing costs Concept (Monetary) For Period Debit ifrs-full:FinanceCosts
82 Earnings (loss) from continuing operations before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
83 Income tax expense (recovery) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
84 Loss from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
85 Loss from discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperations
86 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
87 Attributable to: Abstract ifrs-full:ProfitLossAttributableToAbstract
88 Shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
89 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
90 Net loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
91 Net loss attributable to shareholders of the Company: Abstract ifrs-full:ProfitLossAttributableToOrdinaryEquityHoldersOfParentEntityAbstract
92 Continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
93 Discontinued operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromDiscontinuedOperationsAttributableToOrdinaryEquityHoldersOfParentEntity
94 Shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
95 Weighted average number of shares outstanding Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
96 Basic (in shares) Concept (Shares) For Period ifrs-full:WeightedAverageShares
97 Diluted (in shares) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
98 Net loss per share attributable to shareholders of the Company: Abstract ifrs-full:EarningsPerShareAbstract
99 Basic loss per share (USD per share) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShare
100 Diluted loss per share (USD per share) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShare
101 Net loss per share attributable to shareholders of the Company - continuing operations: Abstract ego:EarningsPerShareAttributableToShareholdersOfTheCompanyContinuingOperationAbstract
102 Basic loss per share (USD per share) Concept (Share) For Period ifrs-full:BasicEarningsLossPerShareFromContinuingOperations
103 Diluted loss per share (USD per share) Concept (Share) For Period ifrs-full:DilutedEarningsLossPerShareFromContinuingOperations
104 1003000 - Statement - Consolidated Statements of Comprehensive Loss Network

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105 Implied Table Table

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106 Statement of comprehensive income [abstract] Abstract ifrs-full:StatementOfComprehensiveIncomeAbstract
107 Loss for the year Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
108 Other comprehensive loss: Abstract ifrs-full:OtherComprehensiveIncomeAbstract
109 Items that will not be reclassified to earnings or loss: Abstract ifrs-full:ComponentsOfOtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTaxAbstract
110 Change in fair value of investments in equity securities Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesFromInvestmentsInEquityInstruments
111 Actuarial losses on defined benefit pension plans Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
112 Income tax recovery on losses on defined benefit pension plans Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToRemeasurementsOfDefinedBenefitPlansOfOtherComprehensiveIncome
113 Other comprehensive income that will not be reclassified to profit or loss, before tax Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillNotBeReclassifiedToProfitOrLossBeforeTax
114 Items that may be reclassified subsequently to earnings or loss: Abstract ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossAbstract
115 Change in fair value of investments in equity securities Concept (Monetary) For Period Credit ifrs-full:GainsLossesOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax
116 Income tax on change in fair value of investments in equity securities Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
117 Reclassification of the gain on equity securities on acquisition of Integra Concept (Monetary) For Period Debit ifrs-full:ReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncomeBeforeTax
118 Income tax on the gain on equity securities on acquisition of Integra Concept (Monetary) For Period Credit ego:IncomeTaxRelatingToReclassificationAdjustmentsOnFinancialAssetsMeasuredAtFairValueThroughOtherComprehensiveIncome
119 Income tax relating to components of other comprehensive income that will not be reclassified to profit or loss Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeThatWillBeReclassifiedToProfitOrLossBeforeTax
120 Total other comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
121 Total comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
122 Attributable to: Abstract ifrs-full:ComprehensiveIncomeAttributableToAbstract
123 Shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToOwnersOfParent
124 Non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncomeAttributableToNoncontrollingInterests
125 Total comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
126 1004000 - Statement - Consolidated Statements of Cash Flows Network

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128 Statement of cash flows [abstract] Abstract ifrs-full:StatementOfCashFlowsAbstract
129 Operating activities Abstract ifrs-full:CashFlowsFromUsedInOperatingActivitiesAbstract
130 Loss for the year from continuing operations Concept (Monetary) For Period Credit ifrs-full:ProfitLossFromContinuingOperations
131 Items not affecting cash: Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
132 Asset retirement obligation accretion Concept (Monetary) For Period Debit ego:AssetRetirementObligationsAccretionExpense
133 Depreciation and amortization Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDepreciationAndAmortisationExpense
134 Unrealized foreign exchange gain Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForUnrealisedForeignExchangeLossesGains
135 Deferred income tax recovery Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDeferredTaxExpense
136 Loss (gain) on disposal of assets Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForLossesGainsOnDisposalOfNoncurrentAssets
137 Gain on derivatives and other investments Concept (Monetary) For Period Credit ifrs-full:AdjustmentsForGainsLossesOnChangeInFairValueOfDerivatives
138 Impairment of property, plant, and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
139 Other write-down of assets Concept (Monetary) For Period Debit ego:WriteDownOfAssets
140 Share based payments Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForSharebasedPayments
141 Defined benefit pension plan expense Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForIncreaseDecreaseInEmployeeBenefitLiabilities
142 Adjustments to reconcile profit (loss) other than changes in working capital Concept (Monetary) For Period Debit ifrs-full:AdjustmentsToReconcileProfitLossOtherThanChangesInWorkingCapital
143 Property reclamation payments Concept (Monetary) For Period Debit ego:AdjustmentsForPropertyReclamationPayments
144 Severance payments Concept (Monetary) For Period Debit ifrs-full:TerminationBenefitsExpense
145 Changes in non-cash working capital Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
146 Net cash provided by operating activities of continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesContinuingOperations
147 Net cash used by operating activities of discontinued operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInOperatingActivitiesDiscontinuedOperations
148 Investing activities Abstract ifrs-full:CashFlowsFromUsedInInvestingActivitiesAbstract
149 Net cash paid on acquisition of subsidiary Concept (Monetary) For Period Credit ifrs-full:CashFlowsUsedInObtainingControlOfSubsidiariesOrOtherBusinessesClassifiedAsInvestingActivities
150 Purchase of property, plant and equipment Concept (Monetary) For Period Credit ifrs-full:PurchaseOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
151 Capitalised interest Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsInvestingActivities
152 Proceeds from the sale of property, plant and equipment Concept (Monetary) For Period Debit ifrs-full:ProceedsFromSalesOfPropertyPlantAndEquipmentClassifiedAsInvestingActivities
153 Proceeds on pre-commercial production sales Concept (Monetary) For Period Debit ego:ProceedsOnPreProductionSalesAndTailingsRetreatmentClassifiedAsInvestingActivities
154 Value added taxes related to mineral property expenditures, net Concept (Monetary) For Period Debit ego:ValueAddedTaxesRelatedToMineralPropertyExpendituresNet
155 Investment in term deposits Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInShorttermDepositsAndInvestments
156 Increase in restricted cash Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInDecreaseIncreaseInRestrictedCashAndCashEquivalents
157 Net cash used by investing activities of continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivitiesContinuingOperations
158 Financing activities Abstract ifrs-full:CashFlowsFromUsedInFinancingActivitiesAbstract
159 Issuance of common shares for cash Concept (Monetary) For Period Debit ifrs-full:ProceedsFromIssuingShares
160 Dividend paid to shareholders Concept (Monetary) For Period Credit ifrs-full:DividendsPaidClassifiedAsFinancingActivities
161 Purchase of treasury stock Concept (Monetary) For Period Credit ifrs-full:PaymentsToAcquireOrRedeemEntitysShares
162 Net cash used by financing activities of continuing operations Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivitiesContinuingOperations
163 Net decrease in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
164 Cash and cash equivalents - beginning of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
165 Cash and cash equivalents - end of year Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
166 1005000 - Statement - Consolidated Statements of Changes in Equity Network

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167 Statement of changes in equity [table] Table

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169 Equity [member] Member ifrs-full:EquityMember
170 Share capital [member] Member ifrs-full:IssuedCapitalMember
171 Treasury stock [member] Member ifrs-full:TreasurySharesMember
172 Contributed surplus [member] Member ifrs-full:AdditionalPaidinCapitalMember
173 Accumulated other comprehensive loss [member] Member ifrs-full:AccumulatedOtherComprehensiveIncomeMember
174 Deficit [member] Member ifrs-full:RetainedEarningsMember
175 Equity attributable to owners of parent [member] Member ifrs-full:EquityAttributableToOwnersOfParentMember
176 Non-controlling interests [member] Member ifrs-full:NoncontrollingInterestsMember
177 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
178 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
179 Integra Gold Corp [member] Member ego:IntegraGoldCorpMember
180 Statement of changes in equity [line items] LineItems ifrs-full:StatementOfChangesInEquityLineItems
181 Changes in equity [abstract] Abstract ifrs-full:ChangesInEquityAbstract
182 Balance beginning of year Concept (Monetary) As Of Credit ifrs-full:Equity
183 Shares issued upon exercise of share options, for cash Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
184 Transfer of contributed surplus on exercise of options Concept (Monetary) For Period Credit ego:SurplusOnExerciseOfOptions
185 Shares issued on acquisition of Integra Gold Corp. Concept (Monetary) For Period Credit ego:IncreaseDecreaseThroughSharesIssuedOnAcquisition
186 Purchase of treasury stock Concept (Monetary) For Period Debit ifrs-full:PurchaseOfTreasuryShares
187 Share based payments Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughSharebasedPaymentTransactions
188 Shares redeemed upon exercise of restricted share units Concept (Monetary) For Period Credit ego:IncreaseDecreaseThroughSharesRedeemedUponExerciseOfRestrictedShareUnitsEquity
189 Transfer to share capital on exercise of options Concept (Monetary) For Period Credit ego:IncreaseDecreaseThroughTransferToShareCapitalOnExerciseOfOptions
190 Other comprehensive loss for the year Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncome
191 Dividends paid Concept (Monetary) For Period Debit ifrs-full:DividendsPaid
192 Loss attributable to shareholders of the Company Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToOwnersOfParent
193 Loss attributable to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
194 Contributions from non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ChangesInEquity
195 Balance end of year Concept (Monetary) As Of Credit ifrs-full:Equity
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275 Share capital Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfShareCapitalReservesAndOtherEquityInterestExplanatory
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279 Share-based payments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfSharebasedPaymentArrangementsExplanatory
280 2128100 - Disclosure - Supplementary cash flow information Network

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283 Supplementary cash flow information Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCashFlowStatementExplanatory
284 2129100 - Disclosure - Financial risk management Network

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288 2130100 - Disclosure - Commitments and Contractual Obligations Network

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291 Commitments and Contractual Obligations Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfCommitmentsExplanatory
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295 Contingencies Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfContingentLiabilitiesExplanatory
296 2132100 - Disclosure - Related party transactions Network

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299 Related party transactions Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRelatedPartyExplanatory
300 2133100 - Disclosure - Financial instruments by category Network

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303 Financial instruments by category Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialInstrumentsExplanatory
304 2138100 - Disclosure - Revenue Network

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307 Revenue Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRevenueFromContractsWithCustomersExplanatory
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311 Production costs Concept (Text Block (HTML)) For Period ego:DisclosureOfProductionCostsExplanatory
312 2140100 - Disclosure - Earnings per share Network

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313 Implied Table Table

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315 Earnings per share Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEarningsPerShareExplanatory
316 2141100 - Disclosure - Segment information Network

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320 2142100 - Disclosure - Events occurring after the reporting date Network

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323 Events occurring after the reporting date Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfEventsAfterReportingPeriodExplanatory
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328 Foreign currency translation Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForForeignCurrencyTranslationExplanatory
329 Property, plant and equipment Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForPropertyPlantAndEquipmentExplanatory
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331 Goodwill Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForGoodwillExplanatory
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335 Inventories Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForMeasuringInventories
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337 Cash and cash equivalents Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyToDetermineComponentsOfCashAndCashEquivalents
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347 Earnings (loss) per share Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfAccountingPolicyForEarningsPerShareExplanatory
348 Adoption of new accounting standards Concept (Text Block (HTML)) For Period ifrs-full:DescriptionOfExpectedImpactOfInitialApplicationOfNewStandardsOrInterpretations
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356 Disclosure of changes in classifications Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfChangesInAccountingEstimatesExplanatory
357 2311301 - Disclosure - Acquisition of Integra (Tables) Network

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

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362 Disclosure of detailed information about business combination [line items] LineItems ifrs-full:DisclosureOfBusinessCombinationsLineItems
363 Summary of Preliminary Allocation of Purchase Price Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
364 2312301 - Disclosure - Cash and cash equivalents (Tables) Network

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367 Summary of Cash and Cash Equivalents Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedInformationAboutCashAndCashEquivalentsExplanatory
368 2313301 - Disclosure - Restricted cash (Tables) Network

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369 Implied Table Table

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371 Summary of Restricted Cash Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedInformationAboutRestrictedCashTableTextBlock
372 2314301 - Disclosure - Accounts receivable and other (Tables) Network

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373 Implied Table Table

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377 Implied Table Table

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380 2317301 - Disclosure - Other assets (Tables) Network

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381 Implied Table Table

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383 Summary of Other Assets Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedInformationAboutOtherAssetsExplanatory
384 2318301 - Disclosure - Non-controlling interests (Tables) Network

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385 Implied Table Table

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387 Summary of Subsidiaries With Non-controlling Interests Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedInformationAboutSubsidiaryWithNoncontrollingInterestsExplanatory
388 2319301 - Disclosure - Property, plant and equipment (Tables) Network

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389 Implied Table Table

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392 Summary of Key Assumptions Used for Assessing Recoverable Amount of Company's CGUs Versus Carrying Values Concept (Text Block (HTML)) For Period ego:DisclosureOfKeyAssumptionsForAssessingRecoverableAmountOfCompanyCGUVersusCarryingValuesExplanatory
393 2320301 - Disclosure - Goodwill (Tables) Network

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394 Implied Table Table

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397 2321301 - Disclosure - Accounts payable and accrued liabilities (Tables) Network

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401 2323301 - Disclosure - Asset retirement obligations (Tables) Network

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405 Summary of Present Value of Estimated Future Net Cash Outflows Concept (Text Block (HTML)) For Period ego:DisclosureOfKeyAssumptionsUsedToCalculateThePresentValueOfEstimatedFutureNetCashOutflowsFromAssetRetirementObligationsExplanatory
406 2324301 - Disclosure - Defined benefit plans (Tables) Network

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411 Summary of Movement in the Defined Benefit Obligation Over the Year Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetExplanatory
412 Summary of Movement in the Fair Value of Plan Assets of the Year Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfPlanAssetsExplanatory
413 Summary of Amounts Recognised in the Income Statement Concept (Text Block (HTML)) For Period ego:DisclosureOfAmountRecognizedInTheStatementOfIncomeInRespectOfDefinedBenefitPlansExplanatory
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415 Summary of Defined Benefit Plans' Weighted Average Asset Allocation Percentages by Asset Category Concept (Text Block (HTML)) For Period ego:DisclosureOfDefinedBenefitPlansWeightedAverageAssetAllocationPercentagesByAssetCategoryExplanatory
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417 2325301 - Disclosure - Income taxes (Tables) Network

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421 Summary of Income Tax Expense (Recovery) Attributable to Geographical Jurisdiction Concept (Text Block (HTML)) For Period ego:DisclosureOfIncomeTaxExpenseRecoveryAttributableToGeographicalJurisdictionExplanatory
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423 Summary of Change in Net Deferred Tax Position Concept (Text Block (HTML)) For Period ego:DisclosureOfChangesInNetDeferredTaxAssetsAndLiabilitiesExplanatory
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426 Summary of Unrecognized Tax Losses Concept (Text Block (HTML)) For Period ego:DisclosureOfComponentsOfDeferredTaxLossesNotRecognizedTextBlock
427 2326301 - Disclosure - Share capital (Tables) Network

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435 Summary of Movements in Number of Share Options Outstanding and Weighted Average Exercise Prices Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfShareOptionsExplanatory
436 Summary of Range of Exercise Prices of Outstanding Share Options Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsExplanatory
437 Summary of Assumptions Used to Estimate the Fair Value of Options Granted Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfIndirectMeasurementOfFairValueOfGoodsOrServicesReceivedShareOptionsGrantedDuringPeriodExplanatory
438 Summary of Status and Movements in RSUs and PSUs Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfNumberAndWeightedAverageExercisePricesOfOtherEquityInstrumentsExplanatory
439 2328301 - Disclosure - Supplementary cash flow information (Tables) Network

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442 Summary of Change in Cash Flow Information Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedCashFlowSupplementaryInformationExplanatory
443 2329301 - Disclosure - Financial risk management (Tables) Network

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446 Summary of Exposure to Various Currencies Denominated in Foreign Currency Concept (Text Block (HTML)) For Period ego:DisclosureOfExposureToVariousCurrenciesDenominatedInForeignCurrencyExplanatory
447 2330301 - Disclosure - Commitments and Contractual Obligations (Tables) Network

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450 Summary of Contractual Obligations Concept (Text Block (HTML)) For Period ego:DisclosureOfOperatingLeaseAndContractualCommitmentsExplanatory
451 2332301 - Disclosure - Related party transactions (Tables) Network

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454 Summary of Compensation Paid or Payable to Key Management Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfInformationAboutKeyManagementPersonnelExplanatory
455 2333301 - Disclosure - Financial instruments by category (Tables) Network

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458 Summary of Carrying Value and Fair Value of Financial Instruments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfFairValueOfFinancialAssetsAndFinancialLiabilitiesAndReclassificationExplanatory
459 2338301 - Disclosure - Revenue (Tables) Network

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460 Implied Table Table

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462 Disclosure of Disaggregation of Revenue Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersExplanatory
463 2339301 - Disclosure - Production costs (Tables) Network

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464 Implied Table Table

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465 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
466 Summary of Product Cost Concept (Text Block (HTML)) For Period ego:DisclosureOfDetailedInformationAboutProductionCostsExplanatory
467 2340301 - Disclosure - Earnings per share (Tables) Network

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470 Summary of Weighted Average Shares and Adjusted Weighted Average Shares Concept (Text Block (HTML)) For Period ifrs-full:EarningsPerShareExplanatory
471 2341301 - Disclosure - Segment information (Tables) Network

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472 Implied Table Table

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474 Summary of Operating Segments Concept (Text Block (HTML)) For Period ifrs-full:DisclosureOfOperatingSegmentsExplanatory
475 2403403 - Disclosure - Significant accounting policies - Summary of Wholly-owned and Partially-owned Subsidiaries (Detail) Network

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480 Greece [member] Member country:GR
481 Canada [member] Member country:CA
482 Brazil [member] Member country:BR
483 Romania [member] Member country:RO
484 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
485 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
486 Tuprag Metal Madencilik Sanayi ve Ticaret AS ("Tuprag") [member] Member ego:TupragMetalMadencilikSanayiVeTicaretASMember
487 Hellas Gold SA ("Hellas") [member] Member ego:HellasGoldSAMember
488 Integra Gold Corp [member] Member ego:IntegraGoldCorpMember
489 Thracean Gold Mining SA [member] Member ego:ThraceanGoldMiningSAMember
490 Thrace Minerals SA [member] Member ego:ThraceMineralsSAMember
491 Unamgen Mineracao e Metalurgia S/A [member] Member ego:UnamgenMineracaoEMetalurgiaSAMember
492 Brazauro Resources Corporation ("Brazauro") [member] Member ego:BrazauroResourcesCorporationMember
493 Deva Gold SA ("Deva") [member] Member ego:DevaGoldSAMember
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496 2411402 - Disclosure - Acquisition of Integra - Additional Information (Detail) Network

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

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502 Number of shares issued (in shares) Concept (Decimal) As Of ifrs-full:NumberOfInstrumentsOrInterestsIssuedOrIssuable
503 Fair value of shares issued Concept (Monetary) As Of Credit ifrs-full:EquityInterestsOfAcquirer
504 Cash paid Concept (Monetary) As Of Credit ifrs-full:CashTransferred
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507 Gain on marketable securities Concept (Monetary) For Period Credit ifrs-full:GainsOnDisposalsOfInvestments
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509 Share price (CAD per share) Concept (Share) For Period ego:BusinessCombinationSharePrice
510 Average foreign exchange rate Concept (Monetary) For Period Debit ego:AverageForeignExchangeRateAmount
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512 Goodwill deductible for tax purposes Concept (Monetary) As Of Debit ifrs-full:GoodwillExpectedDeductibleForTaxPurposes
513 2411403 - Disclosure - Acquisition of Integra - Summary of Preliminary Allocation of Purchase Price (Detail) Network

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

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522 Cash consideration including advances Concept (Monetary) As Of Credit ego:CashConsiderationIncludingAdvances
523 Fair value of existing Integra investment by Eldorado Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsReclassifiedOutOfAvailableforsaleFinancialAssetsAtFairValue
524 Total Consideration Concept (Monetary) As Of Credit ifrs-full:AcquisitiondateFairValueOfTotalConsiderationTransferred
525 Net assets acquired: Abstract ifrs-full:AmountsRecognisedAsOfAcquisitionDateForEachMajorClassOfAssetsAcquiredAndLiabilitiesAssumedAbstract
526 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalentsRecognisedAsOfAcquisitionDate
527 Marketable securities Concept (Monetary) As Of Debit ifrs-full:FinancialAssetsRecognisedAsOfAcquisitionDate
528 Accounts receivable and other Concept (Monetary) As Of Debit ego:AccountsReceivableAndOtherRecognisedAsOfAcquisitionDate
529 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoryRecognisedAsOfAcquisitionDate
530 Other assets Concept (Monetary) As Of Debit ego:OtherAssetsRecognisedAsOfAcquisitionDate
531 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipmentRecognisedAsOfAcquisitionDate
532 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
533 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherPayablesRecognisedAsOfAcquisitionDate
534 Flow-through share premium liability Concept (Monetary) As Of Credit ego:FlowthroughSharePremiumLiabilityRecognisedAsOfAcquisitionDate
535 Other liabilities Concept (Monetary) As Of Credit ego:OtherLiabilitiesRecognisedAsOfAcquisitionDate
536 Deferred income taxes Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
537 Total Concept (Monetary) As Of Debit ifrs-full:IdentifiableAssetsAcquiredLiabilitiesAssumed
538 2412402 - Disclosure - Cash and cash equivalents - Summary of Cash and Cash Equivalents (Detail) Network

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539 Implied Table Table

*

*

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540 Cash and cash equivalents [abstract] Abstract ifrs-full:CashAndCashEquivalentsAbstract
541 Cash at bank and on hand Concept (Monetary) As Of Debit ifrs-full:Cash
542 Short-term bank deposits Concept (Monetary) As Of Debit ifrs-full:BankingArrangementsClassifiedAsCashEquivalents
543 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
544 2413402 - Disclosure - Restricted cash (Details) Network

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*

 http://imetrix.edgar-online.com/role/RestrictedCashDetails
545 Implied Table Table

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 implied:Table
546 Restricted Cash [Abstract] Abstract ego:RestrictedCashAbstract
547 Current: Abstract ifrs-full:MiscellaneousCurrentAssetsAbstract
548 Restricted cash deposits - Greece Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
549 Non-current: Abstract ifrs-full:MiscellaneousAssetsAbstract
550 Restricted credit card deposits Concept (Monetary) As Of Debit ego:RestrictedCreditCardDeposits
551 Restricted cash related to Letter of Guarantee - Greece Concept (Monetary) As Of Debit ego:RestrictedCashLetterOfGuarantee
552 Environmental guarantee deposits Concept (Monetary) As Of Debit ego:EnvironmentalGuaranteeDeposits
553 Restricted cash Concept (Monetary) As Of Debit ifrs-full:RestrictedCashAndCashEquivalents
554 2414402 - Disclosure - Accounts receivable and other - Summary of Accounts Receivable and Other (Detail) Network

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 http://imetrix.edgar-online.com/role/AccountsReceivableAndOtherSummaryOfAccountsReceivableAndOtherDetail
555 Implied Table Table

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556 Trade and other current receivables [abstract] Abstract ifrs-full:TradeAndOtherCurrentReceivablesAbstract
557 Trade receivables Concept (Monetary) As Of Debit ifrs-full:CurrentTradeReceivables
558 Value added tax and other taxes recoverable Concept (Monetary) As Of Debit ifrs-full:CurrentReceivablesFromTaxesOtherThanIncomeTax
559 Other receivables and advances Concept (Monetary) As Of Debit ifrs-full:OtherCurrentReceivables
560 Prepaid expenses and deposits Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaymentsAndOtherCurrentAssets
561 Accounts receivable and other Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
562 2415402 - Disclosure - Inventories - Summary of Inventories (Detail) Network

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 http://imetrix.edgar-online.com/role/InventoriesSummaryOfInventoriesDetail
563 Implied Table Table

*

*

 implied:Table
564 Classes of current inventories [abstract] Abstract ifrs-full:ClassesOfInventoriesAbstract
565 Ore stockpiles Concept (Monetary) As Of Debit ifrs-full:CurrentOreStockpiles
566 In-process inventory and finished goods Concept (Monetary) As Of Debit ego:CurrentInventoryWorkInProgressAndFinishedGoods
567 Materials and supplies Concept (Monetary) As Of Debit ifrs-full:CurrentRawMaterialsAndCurrentProductionSupplies
568 Inventories Concept (Monetary) As Of Debit ifrs-full:InventoriesTotal
569 2415403 - Disclosure - Inventories - Additional Information (Detail) Network

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 http://imetrix.edgar-online.com/role/InventoriesAdditionalInformationDetail
570 Inventory [Table] Table

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 ego:InventoryTable
571 Inventory [Axis] Axis ego:InventoryAxis
572 Inventory [Domain] Member ego:InventoryDomain
573 Zinc [member] Member ego:ZincMember
574 Pyrite [Member] Member ego:PyriteMember
575 Inventory [Line Items] LineItems ego:InventoryLineItems
576 Cost of materials and supplies consumed Concept (Monetary) For Period Debit ifrs-full:CostOfInventoriesRecognisedAsExpenseDuringPeriod
577 Inventory write-down Concept (Monetary) For Period ifrs-full:InventoryWritedown2011
578 2417402 - Disclosure - Other assets - Summary of Other Assets (Detail) Network

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 http://imetrix.edgar-online.com/role/OtherAssetsSummaryOfOtherAssetsDetail
579 Implied Table Table

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 implied:Table
580 Miscellaneous non-current assets [abstract] Abstract ifrs-full:MiscellaneousNoncurrentAssetsAbstract
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582 Prepaid forestry fees Concept (Monetary) As Of Debit ego:PrepaidForestryFees
583 Long-term value added tax and other taxes recoverable Concept (Monetary) As Of Debit ifrs-full:NoncurrentReceivablesFromTaxesOtherThanIncomeTax
584 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherNoncurrentAssets
585 2418402 - Disclosure - Non-controlling interests - Summary of Non-controlling Interests in Subsidiaries (Detail) Network

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586 Disclosure of subsidiaries [table] Table

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 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
587 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
588 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
589 Hellas Gold SA ("Hellas") [member] Member ego:HellasGoldSAMember
590 Deva Gold SA ("Deva") [member] Member ego:DevaGoldSAMember
591 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
592 NCI percentage Concept (Percent) For Period ifrs-full:ProportionOfOwnershipInterestsHeldByNoncontrollingInterests
593 Current assets Concept (Monetary) As Of Debit ifrs-full:CurrentAssets
594 Non-current assets Concept (Monetary) As Of Debit ifrs-full:NoncurrentAssets
595 Current liabilities Concept (Monetary) As Of Credit ifrs-full:CurrentLiabilities
596 Non-current liabilities Concept (Monetary) As Of Credit ifrs-full:NoncurrentLiabilities
597 Net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
598 Carrying amount of NCI Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
599 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
600 Net loss Concept (Monetary) For Period Credit ifrs-full:ProfitLoss
601 Total comprehensive loss Concept (Monetary) For Period Credit ifrs-full:ComprehensiveIncome
602 Loss allocated to NCI Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
603 Dividends paid to NCI Concept (Monetary) For Period Credit ifrs-full:DividendsPaidToNoncontrollingInterests
604 Cash flows from operating activities Concept (Monetary) For Period ifrs-full:CashFlowsFromUsedInOperatingActivities
605 Cash flows from investing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInInvestingActivities
606 Cash flows from financing activities Concept (Monetary) For Period Debit ifrs-full:CashFlowsFromUsedInFinancingActivities
607 Net decrease in cash and cash equivalents Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseInCashAndCashEquivalents
608 2418403 - Disclosure - Non-controlling interests - Additional Information (Detail) Network

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 http://imetrix.edgar-online.com/role/NonControllingInterestsAdditionalInformationDetail
609 Disclosure of subsidiaries [table] Table

*

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 ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesTable
610 Subsidiaries [axis] Axis ifrs-full:SignificantInvestmentsInSubsidiariesAxis
611 Entity's total for subsidiaries [member] Member ifrs-full:EntitysTotalForSubsidiariesMember
612 Non-Material Subsidiaries [member] Member ego:NonMaterialSubsidiariesMember
613 Disclosure of subsidiaries [line items] LineItems ifrs-full:DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
614 Profit (loss) allocated to non-controlling interests Concept (Monetary) For Period Credit ifrs-full:ProfitLossAttributableToNoncontrollingInterests
615 Carrying amount of NCI Concept (Monetary) As Of Credit ifrs-full:NoncontrollingInterests
616 2419402 - Disclosure - Property, plant and equipment - Summary of Property, Plant and Equipment (Detail) Network

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 http://imetrix.edgar-online.com/role/PropertyPlantAndEquipmentSummaryOfPropertyPlantAndEquipmentDetail
617 Disclosure of detailed information about property, plant and equipment [table] Table

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*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
618 Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Axis ifrs-full:CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis
619 Carrying amount [member] Member ifrs-full:CarryingAmountMember
620 Cost [member] Member ifrs-full:GrossCarryingAmountMember
621 Depreciation and impairment losses [member] Member ifrs-full:AccumulatedDepreciationAmortisationAndImpairmentMember
622 Classes of property, plant and equipment [axis] Axis ifrs-full:ClassesOfPropertyPlantAndEquipmentAxis
623 Property, plant and equipment [member] Member ifrs-full:PropertyPlantAndEquipmentMember
624 Land and buildings [member] Member ifrs-full:LandAndBuildingsMember
625 Plant and equipment [member] Member ego:PlantAndEquipmentMember
626 Capital works in progress [member] Member ifrs-full:ConstructionInProgressMember
627 Mineral properties and leases [member] Member ego:MineralPropertiesAndLeasesMember
628 Capitalized Evaluation [member] Member ifrs-full:TangibleExplorationAndEvaluationAssetsMember
629 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
630 Beginning balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
631 Additions/transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersAndOtherChangesPropertyPlantAndEquipment
632 Depreciation for the year Concept (Monetary) For Period ifrs-full:DepreciationPropertyPlantAndEquipment
633 Acquisition of Integra Concept (Monetary) For Period Credit ifrs-full:DecreaseThroughClassifiedAsHeldForSalePropertyPlantAndEquipment
634 Proceeds on pre-commercial production sales Concept (Monetary) For Period Credit ego:CapitalizedRevenues
635 Olympias commercial production transfers Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
636 Other movements Concept (Monetary) For Period Debit ifrs-full:IncreaseDecreaseThroughOtherChangesPropertyPlantAndEquipment
637 Impairment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
638 Disposals Concept (Monetary) For Period Credit ifrs-full:DisposalsPropertyPlantAndEquipment
639 Ending balance Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
640 2419403 - Disclosure - Property, plant and equipment - Additional Information (Detail) Network

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*

 http://imetrix.edgar-online.com/role/PropertyPlantAndEquipmentAdditionalInformationDetail
641 Disclosure of detailed information about property, plant and equipment [table] Table

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 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
642 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
643 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
644 Individual assets or cash-generating units [member] Member ifrs-full:IndividualAssetsOrCashgeneratingUnitsMember
645 Geographical [Axis] Axis srt:StatementGeographicalAxis
646 Geographical [Domain] Member srt:SegmentGeographicalDomain
647 Turkey [member] Member country:TR
648 Greece [member] Member country:GR
649 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
650 Capitalized interest Concept (Monetary) For Period ifrs-full:InterestCostsCapitalised
651 Impairment of property, plant, and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
652 Impairment charges, net of deferred tax Concept (Monetary) For Period Debit ego:ImpairmentLossRecognisedInProfitOrLossNetOfTaxesPropertyPlantAndEquipment
653 2419404 - Disclosure - Property, plant and equipment - Summary of Key Assumptions Used for Assessing Recoverable Amount of Company's CGUs Versus Carrying Values (Detail) Network

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 http://imetrix.edgar-online.com/role/PropertyPlantAndEquipmentSummaryOfKeyAssumptionsUsedForAssessingRecoverableAmountOfCompanysCgusVersusCarryingValuesDetail
654 Disclosure of detailed information about property, plant and equipment [table] Table

*

*

 ifrs-full:DisclosureOfPropertyPlantAndEquipmentTable
655 Geographical [Axis] Axis srt:StatementGeographicalAxis
656 Geographical [Domain] Member srt:SegmentGeographicalDomain
657 Turkey [member] Member country:TR
658 Greece [member] Member country:GR
659 Range [axis] Axis ifrs-full:RangeAxis
660 Ranges [member] Member ifrs-full:RangesMember
661 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
662 Top of range [member] Member ifrs-full:TopOfRangeMember
663 Individual assets or cash-generating units [axis] Axis ifrs-full:IndividualAssetsOrCashgeneratingUnitsAxis
664 Entity's total for individual assets or cash-generating units [member] Member ifrs-full:EntitysTotalForIndividualAssetsOrCashgeneratingUnitsMember
665 Individual assets or cash-generating units [member] Member ifrs-full:IndividualAssetsOrCashgeneratingUnitsMember
666 Disclosure of detailed information about property, plant and equipment [line items] LineItems ifrs-full:DisclosureOfPropertyPlantAndEquipmentLineItems
667 Gold price ($/oz) Concept (Decimal) For Period ego:GoldPricePerOunce
668 Silver price ($/oz) Concept (Decimal) For Period ego:SilverPricePerOunce
669 Lead price ($/t) Concept (Decimal) For Period ego:LeadPricePerPound
670 Zinc price ($/t) Concept (Decimal) For Period ego:ZincPricePerPound
671 Discount rate Concept (Percent) As Of ifrs-full:DiscountRateUsedInCurrentMeasurementOfFairValueLessCostsOfDisposal
672 2420402 - Disclosure - Goodwill - Additional Information (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/GoodwillAdditionalInformationDetail
673 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
674 Business combinations [axis] Axis ifrs-full:BusinessCombinationsAxis
675 Entity's total for business combinations [member] Member ifrs-full:EntitysTotalForBusinessCombinationsMember
676 Integra gold corporation [member] Member ego:IntegraGoldCorporationMember
677 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
678 Goodwill recognized Concept (Monetary) As Of Debit ego:GoodwillAmountRecognizedFromDeferredIncomeTaxLiabilities
679 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
680 Change in gold price ($/oz) Concept (Decimal) For Period ego:IncreaseDecreaseInGoldPrice
681 2420403 - Disclosure - Goodwill - Summary of Key Assumptions Used for Assessing the Recoverable Amount of Goodwil (Detail) Network

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 http://imetrix.edgar-online.com/role/GoodwillSummaryOfKeyAssumptionsUsedForAssessingRecoverableAmountOfGoodwilDetail
682 Disclosure of reconciliation of changes in goodwill [table] Table

*

*

 ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillTable
683 Range [axis] Axis ifrs-full:RangeAxis
684 Ranges [member] Member ifrs-full:RangesMember
685 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
686 Top of range [member] Member ifrs-full:TopOfRangeMember
687 Classes of intangible assets and goodwill [axis] Axis ifrs-full:ClassesOfIntangibleAssetsAndGoodwillAxis
688 Intangible assets and goodwill [member] Member ifrs-full:IntangibleAssetsAndGoodwillMember
689 Goodwill [member] Member ifrs-full:GoodwillMember
690 Disclosure of reconciliation of changes in goodwill [line items] LineItems ifrs-full:DisclosureOfReconciliationOfChangesInGoodwillLineItems
691 Gold price ($/oz) Concept (Decimal) For Period ego:GoldPricePerOunce
692 Discount rate Concept (Percent) As Of ifrs-full:DiscountRateUsedInCurrentMeasurementOfFairValueLessCostsOfDisposal
693 Conversion factor of resources and exploration potential to proven and probable reserves Concept (Percent) As Of ego:ConversionFactorOfResourcesAndExploration
694 Fair value per ounce of resources and exploration potential beyond proven and probable reserves Concept (Decimal) For Period ego:FairValuePerOunceOfResourcesAndExploration
695 2421402 - Disclosure - Accounts payable and accrued liabilities - Summary of Accounts Payable and Accrued Liabilities (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/AccountsPayableAndAccruedLiabilitiesSummaryOfAccountsPayableAndAccruedLiabilitiesDetail
696 Implied Table Table

*

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 implied:Table
697 Trade and other current payables [abstract] Abstract ifrs-full:TradeAndOtherCurrentPayablesAbstract
698 Trade payables Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayablesToTradeSuppliers
699 Taxes payable Concept (Monetary) As Of Credit ego:IncomeTaxesAndOtherTaxesPayable
700 Accrued expenses Concept (Monetary) As Of Credit ifrs-full:AccrualsClassifiedAsCurrent
701 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
702 2422401 - Disclosure - Debt - Additional Information (Detail) Network

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*

 http://imetrix.edgar-online.com/role/DebtAdditionalInformationDetail
703 Disclosure Of Borrowings [Table] Table

*

*

 ego:DisclosureOfBorrowingsTable
704 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
705 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
706 Revolving credit facility [member] Member ego:RevolvingCreditFacility1Member
707 Senior notes [member] Member ego:SeniorNotes1Member
708 External credit grades [axis] Axis ifrs-full:ExternalCreditGradesAxis
709 Entity's total for external credit grades [member] Member ifrs-full:EntitysTotalForExternalCreditGradesMember
710 Amended and restated credit agreement [member] Member ego:AmendedAndRestatedCreditAgreementMember
711 Disclosure Of Borrowings [Line Items] LineItems ego:DisclosureOfBorrowingsLineItems
712 Borrowings Concept (Monetary) As Of Credit ifrs-full:Borrowings
713 Additional borrowing capacity Concept (Monetary) As Of Credit ego:AdditionalBorrowingCapacity
714 Borrowings maturity Concept (Date) For Period ego:BorrowingsMaturityDate
715 Aggregate unsecured indebtedness Concept (Monetary) For Period Credit ego:AggregateUnsecuredIndebtedness
716 Secured indebtedness incurred Concept (Monetary) For Period Credit ego:IncurredSecuredIndebtedness
717 Unsecured indebtedness Concept (Monetary) For Period Credit ego:UnsecuredIndebtedness
718 Net Debt to EBITDA ratio Concept (Pure) For Period ego:NetDebtToEBITDARatio
719 Minimum EBITDA to Interest ratio Concept (Pure) For Period ego:MinimumEbitdaToInterestRatio
720 Current net leverage ratio Concept (Pure) For Period ego:NetLeverageRatio
721 LIBOR interest plus margin Concept (Percent) As Of ego:BorrowingsInterestRateBasisSpreadOnLIBORRate
722 Loan undrawn standby fee Concept (Percent) For Period ego:LoanUndrawnStandbyFee
723 Loan undrawn standby fee paid Concept (Monetary) For Period Debit ifrs-full:FeeAndCommissionExpense
724 Prepaid loan cost Concept (Monetary) As Of Debit ifrs-full:CurrentPrepaidExpenses
725 Notes issued at par value Concept (Monetary) For Period Credit ego:NotesIssuedAtParValue
726 Debt fixed interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
727 Notes issued coupon rate Concept (Percent) For Period ego:NotesIssuedCouponRate
728 Senior notes issued Concept (Monetary) As Of Credit ifrs-full:NotesAndDebenturesIssued
729 Fair market value of notes issued Concept (Monetary) For Period Credit ego:FairMarketValueOfNotesIssued
730 Deferred financing cost Concept (Monetary) As Of Credit ego:DeferredFinancingCost
731 Principal amount notes redemption price Concept (Text/String) For Period ego:PrincipalAmountNotesRedemptionPrice
732 Debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
733 2423402 - Disclosure - Asset retirement obligations - Summary of Asset Retirement Obligations (Detail) Network

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 http://imetrix.edgar-online.com/role/AssetRetirementObligationsSummaryOfAssetRetirementObligationsDetail
734 Disclosure of asset retirement obligations [Table] Table

*

*

 ego:DisclosureOfAssetRetirementObligationsTable
735 Segments [axis] Axis ifrs-full:SegmentsAxis
736 Segments [member] Member ifrs-full:SegmentsMember
737 Turkey [member] Member ego:TurkeySegmentMember
738 Canada [member] Member ego:CanadaSegmentMember
739 Greece [member] Member ego:GreeceSegmentMember
740 Romania [member] Member ego:RomaniaSegmentMember
741 Brazil [member] Member ego:BrazilSegmentMember
742 Disclosure of asset retirement obligations [line items] LineItems ego:DisclosureOfAssetRetirementObligationsLineItems
743 Beginning Balance Concept (Monetary) As Of Credit ego:AssetRetirementObligations
744 Acquired during the year Concept (Monetary) For Period Credit ego:AssetRetirementObligationsAcquiredDuringTheYear
745 Accretion during the year Concept (Monetary) For Period Debit ego:AssetRetirementObligationsAccretionExpenseDuringTheYear
746 Revisions to estimate Concept (Monetary) For Period Debit ego:RevisionsToEstimateOfAssetRetirementObligations
747 Settlements Concept (Monetary) For Period Debit ego:SettlementOfAssetRetirementObligations
748 Ending Balance Concept (Monetary) As Of Credit ego:AssetRetirementObligations
749 Less: Current portion Concept (Monetary) As Of Credit ego:AssetRetirementObligationsCurrent
750 Long term portion Concept (Monetary) As Of Credit ego:AssetRetirementObligationsNonCurrent1
751 Estimated undiscounted amount Concept (Monetary) For Period Debit ego:EstimatedUndiscountedAmountOfAssetRetirementObligations
752 2423403 - Disclosure - Asset retirement obligations - Summary of Present Value of Estimated Future Net Cash Outflows (Detail) Network

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 http://imetrix.edgar-online.com/role/AssetRetirementObligationsSummaryOfPresentValueOfEstimatedFutureNetCashOutflowsDetail
753 Disclosure of asset retirement obligations [Table] Table

*

*

 ego:DisclosureOfAssetRetirementObligationsTable
754 Segments [axis] Axis ifrs-full:SegmentsAxis
755 Segments [member] Member ifrs-full:SegmentsMember
756 Turkey [member] Member ego:TurkeySegmentMember
757 Canada [member] Member ego:CanadaSegmentMember
758 Greece [member] Member ego:GreeceSegmentMember
759 Romania [member] Member ego:RomaniaSegmentMember
760 Brazil [member] Member ego:BrazilSegmentMember
761 Range [axis] Axis ifrs-full:RangeAxis
762 Ranges [member] Member ifrs-full:RangesMember
763 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
764 Top of range [member] Member ifrs-full:TopOfRangeMember
765 Disclosure of asset retirement obligations [line items] LineItems ego:DisclosureOfAssetRetirementObligationsLineItems
766 Inflation rate Concept (Percent) For Period ego:InflationRate
767 Discount rate Concept (Percent) For Period ego:DiscountRate
768 2423404 - Disclosure - Asset retirement obligations - Additional Information (Detail) Network

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*

 http://imetrix.edgar-online.com/role/AssetRetirementObligationsAdditionalInformationDetail
769 Disclosure of asset retirement obligations [Table] Table

*

*

 ego:DisclosureOfAssetRetirementObligationsTable
770 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
771 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
772 Greece [member] Member country:GR
773 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
774 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
775 50.0 million Letter of Credit [member] Member ego:FiftyPointZeroMillionLetterOfCreditMember
776 7.5 million Letter of Guarantee [member] Member ego:SevenPointFiveMillionLetterOfGuaranteeMember
777 Disclosure of asset retirement obligations [line items] LineItems ego:DisclosureOfAssetRetirementObligationsLineItems
778 Letter of guarantee Concept (Monetary) For Period Debit ego:LettersOfGuarantee
779 Letter of guarantee annual fee Concept (Percent) For Period ego:LettersOfGuaranteeAnnualFee
780 Letter of guarantee expiration date Concept (Date) For Period ego:LettersOfGuaranteeExpirationDate
781 2424402 - Disclosure - Defined benefit plans - Summary of Defined Benefit Plans (Detail) Network

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782 Disclosure of defined benefit plans [table] Table

*

*

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783 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
784 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
785 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
786 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
787 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
788 Income statement charge for: Abstract ifrs-full:ClassesOfEmployeeBenefitsExpenseAbstract
789 Defined benefit pension plan expense Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
790 Actuarial losses recognised in the statement of other comprehensive income in the period (before tax) Concept (Monetary) For Period Credit ifrs-full:OtherComprehensiveIncomeBeforeTaxGainsLossesOnRemeasurementsOfDefinedBenefitPlans
791 Cumulative actuarial losses recognised in the statement of other comprehensive income (before tax) Concept (Monetary) For Period Credit ego:CumulativeAmountOfActuarialLossesGainsRecognizedInComprehensiveIncome
792 2424403 - Disclosure - Defined benefit plans - Additional Information (Detail) Network

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793 Disclosure of defined benefit plans [table] Table

*

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 ifrs-full:DisclosureOfDefinedBenefitPlansTable
794 Non-adjusting events after reporting period [axis] Axis ifrs-full:NonadjustingEventsAfterReportingPeriodAxis
795 Non-adjusting events after reporting period [member] Member ifrs-full:NonadjustingEventsMember
796 Canadian Pension Plan [member] Member ifrs-full:EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
797 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
798 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
799 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
800 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
801 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
802 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
803 Plan assets [member] Member ifrs-full:PlanAssetsMember
804 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
805 Refundable tax of percentage of gain on defined benefit pension plans Concept (Percent) For Period ego:RefundableTaxOfPercentageOfGainOnDefinedBenefitPensionPlans
806 Contributions by employer Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
807 Benefit payments Concept (Monetary) For Period Debit ego:PaymentsMadeToBeneficiariesNetDefinedBenefitLiabilityAsset
808 Actual return on plan assets Concept (Monetary) For Period Debit ifrs-full:ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
809 2424404 - Disclosure - Defined benefit plans - Summary of Amounts Recognised in the Balance Sheet for All Pension Plans (Detail) Network

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810 Disclosure of defined benefit plans [table] Table

*

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 ifrs-full:DisclosureOfDefinedBenefitPlansTable
811 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
812 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
813 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
814 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
815 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
816 Present value of obligations Concept (Monetary) As Of Credit ifrs-full:DefinedBenefitObligationAtPresentValue
817 Fair value of plan assets Concept (Monetary) As Of Debit ifrs-full:PlanAssetsAtFairValue
818 Asset (liability) on balance sheet Concept (Monetary) As Of Debit ifrs-full:SurplusDeficitInPlan
819 2424405 - Disclosure - Defined benefit plans - Summary of Movement in the Defined Benefit Obligation Over the Year (Detail) Network

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820 Disclosure of net defined benefit liability (asset) [table] Table

*

*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
821 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
822 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
823 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
824 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
825 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
826 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
827 Present value of defined benefit obligation [member] Member ifrs-full:PresentValueOfDefinedBenefitObligationMember
828 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
829 Beginning Balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
830 Current service cost Concept (Monetary) For Period Credit ifrs-full:CurrentServiceCostNetDefinedBenefitLiabilityAsset
831 Past service cost Concept (Monetary) For Period Credit ifrs-full:PastServiceCostNetDefinedBenefitLiabilityAsset
832 Interest cost Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
833 Actuarial gain (loss) Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
834 Benefit payments Concept (Monetary) For Period Debit ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset
835 Exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
836 Ending Balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
837 2424406 - Disclosure - Defined benefit plans - Summary of Movement in the Fair Value of Plan Assets of the Year (Detail) Network

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838 Disclosure of fair value of plan assets [table] Table

*

*

 ifrs-full:DisclosureOfFairValueOfPlanAssetsTable
839 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
840 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
841 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
842 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
843 Net defined benefit liability (asset) [axis] Axis ifrs-full:NetDefinedBenefitLiabilityAssetAxis
844 Net defined benefit liability (asset) [member] Member ifrs-full:NetDefinedBenefitLiabilityAssetMember
845 Plan assets [member] Member ifrs-full:PlanAssetsMember
846 Disclosure of fair value of plan assets [line items] LineItems ifrs-full:DisclosureOfFairValueOfPlanAssetsLineItems
847 Beginning Balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
848 Interest income on plan assets Concept (Monetary) For Period Credit ifrs-full:InterestExpenseIncomeNetDefinedBenefitLiabilityAsset
849 Actuarial gain (loss) Concept (Monetary) For Period Debit ifrs-full:GainLossOnRemeasurementOfNetDefinedBenefitLiabilityAsset
850 Contributions by employer Concept (Monetary) For Period Debit ifrs-full:ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
851 Benefit payments Concept (Monetary) For Period Debit ifrs-full:PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset
852 Exchange gain (loss) Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughChangesInForeignExchangeRatesNetDefinedBenefitLiabilityAsset
853 Ending Balance Concept (Monetary) As Of Credit ifrs-full:LiabilityAssetOfDefinedBenefitPlans
854 2424407 - Disclosure - Defined benefit plans - Summary of Amounts Recognised in the Income Statement (Detail) Network

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 http://imetrix.edgar-online.com/role/DefinedBenefitPlansSummaryOfAmountsRecognisedInIncomeStatementDetail
855 Disclosure of net defined benefit liability (asset) [table] Table

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*

 ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetTable
856 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
857 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
858 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
859 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
860 Disclosure of net defined benefit liability (asset) [line items] LineItems ifrs-full:DisclosureOfNetDefinedBenefitLiabilityAssetLineItems
861 Current service cost Concept (Monetary) For Period Debit ego:CurrentServiceCostsRecognisedInProfitOrLoss
862 Interest cost Concept (Monetary) For Period Debit ego:NetInterestExpenseIncomeDefinedBenefitLiabilityAssetRecognizedInProfitOrLoss
863 Past Service Cost Concept (Monetary) For Period Debit ego:PastServiceCostsRecognisedInProfitOrLoss
864 Expected return on plan assets Concept (Monetary) For Period Credit ego:ExpectedReturnOnPlanAssetsNetDefinedBenefitLiabilityAssetRecognisedInProfitOrLoss
865 Defined benefit plans expense Concept (Monetary) For Period Debit ifrs-full:PostemploymentBenefitExpenseDefinedBenefitPlans
866 2424408 - Disclosure - Defined benefit plans - Summary of Principal Actuarial Assumptions (Detail) Network

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*

 http://imetrix.edgar-online.com/role/DefinedBenefitPlansSummaryOfPrincipalActuarialAssumptionsDetail
867 Disclosure of defined benefit plans [table] Table

*

*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
868 Segments [axis] Axis ifrs-full:SegmentsAxis
869 Segments [member] Member ifrs-full:SegmentsMember
870 Greece [member] Member ego:GreeceSegmentMember
871 Turkey [member] Member ego:TurkeySegmentMember
872 Canada [member] Member ego:CanadaSegmentMember
873 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
874 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
875 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
876 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
877 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
878 Expected return on plan assets Concept (Percent) As Of ego:ActuarialAssumptionOfExpectedReturnOnPlanAssets
879 Discount rate - beginning of year Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
880 Discount rate - end of year Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfDiscountRates
881 Rate of salary escalation Concept (Percent) As Of ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreases
882 Average remaining service period of active employees expected to receive benefits Concept (xbrli:durationItemType) For Period ego:WeightedAverageDurationOfDefinedBenefitObligations
883 2424409 - Disclosure - Defined benefit plans - Summary of Defined Benefit Plans' Weighted Average Asset Allocation Percentages by Asset Category (Detail) Network

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884 Disclosure of defined benefit plans [table] Table

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*

 ifrs-full:DisclosureOfDefinedBenefitPlansTable
885 Defined benefit plans [axis] Axis ifrs-full:DefinedBenefitPlansAxis
886 Defined benefit plans [member] Member ifrs-full:DefinedBenefitPlansMember
887 Defined Benefit Pension Plans [member] Member ego:DefinedBenefitPensionPlansMember
888 Supplemental pension plan [member] Member ego:SupplementalPensionPlanMember
889 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
890 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
891 Canada [member] Member country:CA
892 UNITED STATES Member country:US
893 Other jurisdictions [member] Member ifrs-full:ForeignCountriesMember
894 Disclosure of defined benefit plans [line items] LineItems ifrs-full:DisclosureOfDefinedBenefitPlansLineItems
895 Investment funds Abstract ego:InvestmentSecuritiesAbstract
896 Money market Concept (Percent) For Period ego:PercentageOfMoneyMarketSecurities
897 Canadian fixed income Concept (Percent) For Period ego:PercentageOfFixedIncomeSecurities
898 Equities Concept (Percent) For Period ego:PercentageOfEquityInterest
899 Other Concept (Percent) For Period ego:PercentageOfOtherSecurities
900 Total Concept (Percent) For Period ego:PercentageOfInvestments
901 2424410 - Disclosure - Defined benefit plans - Summary of Sensitivity of the Overall Pension Obligation to Changes in the Weighted Principal Assumptions (Detail) Network

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902 Disclosure of sensitivity analysis for actuarial assumptions [table] Table

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*

 ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsTable
903 Actuarial assumptions [axis] Axis ifrs-full:ActuarialAssumptionsAxis
904 Actuarial assumptions [member] Member ifrs-full:ActuarialAssumptionsMember
905 Discount rate [member] Member ifrs-full:ActuarialAssumptionOfDiscountRatesMember
906 Salary escalation rate [member] Member ifrs-full:ActuarialAssumptionOfExpectedRatesOfSalaryIncreasesMember
907 Disclosure of sensitivity analysis for actuarial assumptions [line items] LineItems ifrs-full:DisclosureOfSensitivityAnalysisForActuarialAssumptionsLineItems
908 Change in assumption, increase Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleIncreaseInActuarialAssumption
909 Change in assumption, decrease Concept (Percent) As Of ifrs-full:PercentageOfReasonablyPossibleDecreaseInActuarialAssumption
910 Impact on overall obligation, due to 0.5 % decrease in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleDecreaseInActuarialAssumption
911 Impact on overall obligation, due to 0.5 % increase in actuarial assumption Concept (Monetary) As Of Credit ifrs-full:IncreaseDecreaseInDefinedBenefitObligationDueToReasonablyPossibleIncreaseInActuarialAssumption
912 2425402 - Disclosure - Income taxes - Summary of Income Tax Expense (Recovery) (Detail) Network

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*

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913 Implied Table Table

*

*

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914 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
915 Current tax expense Concept (Monetary) For Period Debit ifrs-full:CurrentTaxExpenseIncome
916 Deferred tax recovery Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
917 Income tax expense (recovery) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
918 2425403 - Disclosure - Income taxes - Summary of Income Tax Expense (Recovery) Attributable to Geographical Jurisdiction (Detail) Network

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*

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919 Disclosure of geographical areas [table] Table

*

*

 ifrs-full:DisclosureOfGeographicalAreasTable
920 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
921 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
922 Turkey [member] Member country:TR
923 Greece [member] Member country:GR
924 Brazil [member] Member country:BR
925 Canada [member] Member country:CA
926 Romania [member] Member country:RO
927 Other jurisdictions [member] Member ifrs-full:ForeignCountriesMember
928 Disclosure of geographical areas [line items] LineItems ifrs-full:DisclosureOfGeographicalAreasLineItems
929 Income tax expense (recovery) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
930 2425404 - Disclosure - Income taxes - Summary of Factors Affecting Income Tax Expense (Recovery) (Detail) Network

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*

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931 Implied Table Table

*

*

 implied:Table
932 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
933 Earnings (loss) from continuing operations before income tax Concept (Monetary) For Period Credit ifrs-full:ProfitLossBeforeTax
934 Canadian statutory tax rate Concept (Percent) For Period ifrs-full:ApplicableTaxRate
935 Tax expense (recovery) on net income at Canadian statutory tax rate Concept (Monetary) For Period Debit ifrs-full:TaxExpenseIncomeAtApplicableTaxRate
936 Items that cause an increase (decrease) in income tax expense: Abstract ego:ChangesInIncomeTaxExpenseAbstract
937 Foreign income subject to different income tax rates than Canada Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfForeignTaxRates
938 Reduction in Greek income tax rate Concept (Monetary) For Period Debit ifrs-full:TaxEffectFromChangeInTaxRate
939 Non-tax effected operating losses Concept (Monetary) For Period Credit ifrs-full:TaxEffectOfRevenuesExemptFromTaxation2011
940 Non-deductible expenses and other items Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfExpenseNotDeductibleInDeterminingTaxableProfitTaxLoss
941 Foreign exchange and other translation adjustments Concept (Monetary) For Period Debit ego:TaxEffectOfForeignExchangeGainsLossesNotIncludedInNetEarnings
942 Future and current withholding tax on foreign income dividends Concept (Monetary) For Period Debit ego:TaxEffectOfWithholdingTaxes
943 Other Concept (Monetary) For Period Debit ifrs-full:OtherTaxEffectsForReconciliationBetweenAccountingProfitAndTaxExpenseIncome
944 Income tax expense (recovery) Concept (Monetary) For Period Debit ifrs-full:IncomeTaxExpenseContinuingOperations
945 2425405 - Disclosure - Income taxes - Summary of Change in Net Deferred Tax Position (Detail) Network

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*

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946 Implied Table Table

*

*

 implied:Table
947 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
948 Net deferred tax asset (liability) Abstract ifrs-full:NetDeferredTaxAssetsAndLiabilitiesAbstract
949 Beginning balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
950 Deferred income tax liability related to Integra acquisition Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilitiesRecognisedAsOfAcquisitionDate
951 Deferred income tax recovery in the income statement Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
952 Deferred tax recovery in other comprehensive loss Concept (Monetary) For Period ifrs-full:IncomeTaxRelatingToComponentsOfOtherComprehensiveIncome
953 Ending balance Concept (Monetary) As Of Credit ifrs-full:DeferredTaxLiabilityAsset
954 2425406 - Disclosure - Income taxes - Summary of Temporary Difference (Detail) Network

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 http://imetrix.edgar-online.com/role/IncomeTaxesSummaryOfTemporaryDifferenceDetail
955 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
956 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
957 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
958 Property, plant and equipment [member] Member ego:PropertyPlantAndEquipmentTemporaryDifferencesMember
959 Loss carryforwards [member] Member ego:LossCarryforwardsTemporaryDifferencesMember
960 Liabilities [member] Member ego:LiabilitiesTemporaryDifferencesMember
961 Investment tax credits [member] Member ego:InvestmentTaxCreditsMember
962 Other items [member] Member ifrs-full:OtherTemporaryDifferencesMember
963 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
964 Deferred tax assets Concept (Monetary) As Of Debit ifrs-full:NetDeferredTaxAssets
965 Deferred tax liabilities Concept (Monetary) As Of Credit ifrs-full:NetDeferredTaxLiabilities
966 Expense (recovery) Concept (Monetary) For Period ifrs-full:DeferredTaxExpenseIncomeRecognisedInProfitOrLoss
967 2425407 - Disclosure - Income taxes - Summary of Unrecognized Deferred Tax Assets (Detail) Network

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968 Implied Table Table

*

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969 Major components of tax expense (income) [abstract] Abstract ifrs-full:MajorComponentsOfTaxExpenseIncomeAbstract
970 Unrecognized deferred tax assets Abstract ego:UnrecognizedDeferredTaxAssetsAbstract
971 Tax losses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
972 Other deductible temporary differences Concept (Monetary) For Period Debit ifrs-full:DeferredTaxExpenseIncomeRelatingToOriginationAndReversalOfTemporaryDifferences
973 Total unrecognized deferred tax assets Concept (Monetary) As Of Debit ego:UnrecognizedDeferredTaxAssets
974 2425408 - Disclosure - Income taxes - Additional Information (Detail) Network

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975 Major Components Of Tax Expense Income [Table] Table

*

*

 ego:MajorComponentsOfTaxExpenseIncomeTable
976 Geographical areas [axis] Axis ifrs-full:GeographicalAreasAxis
977 Geographical areas [member] Member ifrs-full:GeographicalAreasMember
978 Turkey [member] Member country:TR
979 Major components of tax expense income [line items] LineItems ego:MajorComponentsOfTaxExpenseIncomeLineItems
980 Tax effect of tax losses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
981 Tax effect of total losses not recognized as deferred tax assets Concept (Monetary) For Period Debit ego:TaxEffectOfTaxLossesNotRecognized
982 Deductible temporary differences for which deferred tax assets have not been recognized Concept (Monetary) As Of Debit ifrs-full:DeferredTaxAssetWhenUtilisationIsDependentOnFutureTaxableProfitsInExcessOfProfitsFromReversalOfTaxableTemporaryDifferencesAndEntityHasSufferedLossInJurisdictionToWhichDeferredTaxAssetRelates
983 Temporary differences associated with investments in subsidiaries Concept (Monetary) As Of ifrs-full:TemporaryDifferencesAssociatedWithInvestmentsInSubsidiariesBranchesAndAssociatesAndInterestsInJointVentures
984 Increase in deferred income tax expense due to exchange difference Concept (Monetary) For Period Debit ifrs-full:IncomeTaxRelatingToExchangeDifferencesOnTranslationOfOtherComprehensiveIncome
985 2425409 - Disclosure - Income taxes - Summary of Unrecognized Tax Losses (Detail) Network

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986 Disclosure of temporary difference, unused tax losses and unused tax credits [table] Table

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 ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsTable
987 Temporary difference, unused tax losses and unused tax credits [axis] Axis ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsAxis
988 Temporary difference, unused tax losses and unused tax credits [member] Member ifrs-full:TemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsMember
989 2019 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroOneNineMember
990 2020 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoZeroMember
991 2021 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoOneMember
992 2022 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwentyTwoMember
993 2023 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoThreeMember
994 2025 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoFiveMember
995 2026 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoSixMember
996 2027 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoSevenMember
997 2028 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoEightMember
998 2029 [Member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroTwoNineMember
999 2030 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeZeroMember
1000 2031 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeOneMember
1001 2032 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeTwoMember
1002 2033 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeThreeMember
1003 2034 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeFourMember
1004 2035 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeFiveMember
1005 2036 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeSixMember
1006 2037 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeSevenMember
1007 2038 [member] Member ego:TaxLossesCarriedForwardExpiresInYearTwoZeroThreeEightMember
1008 No Expiry [member] Member ego:TaxLossesCarriedForwardWithNoExpiryMember
1009 Tax losses carried forward [member] Member ego:TaxLossesCarriedForwardMember
1010 Capital losses with no expiry [member] Member ego:CapitalLossesWithNoExpiryMember
1011 Segments [axis] Axis ifrs-full:SegmentsAxis
1012 Segments [member] Member ifrs-full:SegmentsMember
1013 Canada [member] Member ego:CanadaSegmentMember
1014 Brazil [member] Member ego:BrazilSegmentMember
1015 Greece [member] Member ego:GreeceSegmentMember
1016 Disclosure of temporary difference, unused tax losses and unused tax credits [line items] LineItems ifrs-full:DisclosureOfTemporaryDifferenceUnusedTaxLossesAndUnusedTaxCreditsLineItems
1017 Gross amount of the tax losses Concept (Monetary) As Of ifrs-full:UnusedTaxLossesForWhichNoDeferredTaxAssetRecognised
1018 Tax effect of tax losses Concept (Monetary) For Period Debit ifrs-full:TaxEffectOfTaxLosses
1019 2426402 - Disclosure - Share capital - Additional Information (Detail) Network

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*

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1020 Disclosure of classes of share capital [table] Table

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 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1021 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1022 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1023 Non voting shares [member] Member ego:NonVotingSharesMember
1024 Voting common shares [member] Member ego:VotingSharesMember
1025 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1026 Number of non-voting common shares outstanding Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1027 Stock split, conversion ratio Concept (Pure) For Period ego:StockSplitConversionRatio
1028 2426403 - Disclosure - Share capital - Summary of Share Capital (Detail) Network

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1029 Disclosure of classes of share capital [table] Table

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*

 ifrs-full:DisclosureOfClassesOfShareCapitalTable
1030 Components of equity [axis] Axis ifrs-full:ComponentsOfEquityAxis
1031 Equity [member] Member ifrs-full:EquityMember
1032 Share capital [member] Member ifrs-full:IssuedCapitalMember
1033 Classes of share capital [axis] Axis ifrs-full:ClassesOfShareCapitalAxis
1034 Share capital [member] Member ifrs-full:ClassesOfShareCapitalMember
1035 Voting common shares [member] Member ego:VotingSharesMember
1036 Disclosure of classes of share capital [line items] LineItems ifrs-full:DisclosureOfClassesOfShareCapitalLineItems
1037 Beginning balance (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1038 Shares issued upon exercise of share options, for cash (in shares) Concept (Shares) For Period ego:IncreaseDecreaseThroughExerciseOfSharesOptions
1039 Shares issued for acquisition of Integra (in shares) Concept (Shares) For Period ego:NumberOfSharesIssuedAcquisition
1040 Ending balance (in shares) Concept (Shares) As Of ifrs-full:NumberOfSharesOutstanding
1041 Balance beginning of year Concept (Monetary) As Of Credit ifrs-full:Equity
1042 Shares issued upon exercise of share options, for cash Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseThroughExerciseOfOptions
1043 Estimated fair value of share options exercised Concept (Monetary) For Period Credit ego:EstimatedFairValueOfShareOptionsExercised
1044 Shares issued for acquisition of Integra Concept (Monetary) For Period Credit ego:AcquisitionEquityInterests
1045 Balance end of year Concept (Monetary) As Of Credit ifrs-full:Equity
1046 2427402 - Disclosure - Share-based payments - Summary of Share Based Payments Expense (Details) Network

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1047 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1048 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1049 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1050 Employee stock option plan [member] Member ego:EmployeeStockOptionPlanMember
1051 Restricted Shares Without Performance Criteria [member] Member ego:RestrictedSharesWithoutPerformanceCriteriaMember
1052 Restricted Shares With Performance Criteria [member] Member ego:RestrictedSharesWithPerformanceCriteriaMember
1053 Deferred share units plans [member] Member ego:DeferredShareUnitsPlansMember
1054 Performance share unit [member] Member ego:PerformanceShareUnitMember
1055 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1056 Share based payments Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1057 2427403 - Disclosure - Share-based payments - Additional Information (Detail) Network

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1058 Disclosure of terms and conditions of share-based payment arrangement [table] Table

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*

 ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementTable
1059 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1060 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1061 Employee stock option plan [member] Member ego:EmployeeStockOptionPlanMember
1062 Directors and officers stock option plan [member] Member ego:DirectorsAndOfficersStockOptionPlanMember
1063 Restricted share unit plan [member] Member ego:RestrictedShareUnitPlanMember
1064 Restricted Shares Without Performance Criteria [member] Member ego:RestrictedSharesWithoutPerformanceCriteriaMember
1065 Restricted Shares With Performance Criteria [member] Member ego:RestrictedSharesWithPerformanceCriteriaMember
1066 Deferred share units plans [member] Member ego:DeferredShareUnitsPlansMember
1067 Performance share unit [member] Member ego:PerformanceShareUnitMember
1068 Range [axis] Axis ifrs-full:RangeAxis
1069 Ranges [member] Member ifrs-full:RangesMember
1070 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1071 Top of range [member] Member ifrs-full:TopOfRangeMember
1072 Disclosure of terms and conditions of share-based payment arrangement [line items] LineItems ifrs-full:DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
1073 Number of share option plans Concept (Integer) For Period ego:NumberOfShareOptionPlans
1074 Expected term Concept (xbrli:durationItemType) For Period ego:ShareBasedPaymentArrangementExpectedTerm
1075 Number of tranches Concept (Integer) For Period ego:NumberOfTranches
1076 Number of share options available to grant under the plan Concept (Shares) For Period ego:NumberOfShareOptionsAvailableForGrantInSharebasedPaymentArrangement
1077 Number of share purchase options vested and exercisable Concept (Decimal) As Of ego:NumberOfShareOptionsOrOtherEquityInstrumentsVestedAndExercisableInShareBasedPaymentArrangement
1078 Weighted average exercise price of share purchase options vested and exercisable Concept (Monetary) As Of Debit ego:Weightedaverageexercisepriceofshareoptionsvestedandexercisableinsharebasedpaymentarrangement
1079 Expense from share-based payment transactions Concept (Monetary) For Period Debit ifrs-full:ExpenseFromSharebasedPaymentTransactionsWithEmployees
1080 Weighted average fair value per stock option Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateShareOptionsGranted
1081 Vesting percentage on first anniversary Concept (Percent) For Period ego:VestingPercentageOnFirstAnniversary
1082 Vesting percentage on second anniversary Concept (Percent) For Period ego:VestingPercentageOnSecondAnniversary
1083 Vesting percentage on third anniversary Concept (Percent) For Period ego:VestingPercentageOnThirdAnniversary
1084 Maximum number of shares reserved for issue under options Concept (Decimal) As Of ego:SharesReservedForIssueUnderEmployeeShareSchemes
1085 Number of share purchased held in trust share-based payment arrangement Concept (Decimal) For Period ego:NumberOfShareOrOtherEquityInstrumentsPurchasedHeldInTrustSharebasedPaymentArrangement
1086 Number of share options granted in share-based payment arrangement Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1087 Weighted average fair value per stock option Concept (Monetary) As Of Credit ifrs-full:WeightedAverageFairValueAtMeasurementDateOtherEquityInstrumentsGranted
1088 Compensation expense Concept (Monetary) For Period Debit ego:StockBasedCompensationExpense
1089 Trading days Concept (xbrli:durationItemType) For Period ego:NumberOfTradingPeriod
1090 Number of shares outstanding Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1091 Liabilities from share-based payment transactions Concept (Monetary) As Of Credit ifrs-full:LiabilitiesFromSharebasedPaymentTransactions2011
1092 Compensation expense (income) Concept (Monetary) For Period ego:StockBasedCompensationExpenseIncome
1093 Performance target award (range) Concept (Percent) For Period ego:PerformanceTargetAwardPercentage
1094 2427404 - Disclosure - Share-based payments - Summary of Movements in Number of Share Options Outstanding and Weighted Average Exercise Prices (Detail) Network

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 http://imetrix.edgar-online.com/role/ShareBasedPaymentsSummaryOfMovementsInNumberOfShareOptionsOutstandingAndWeightedAverageExercisePricesDetail
1095 Disclosure Of Number And Weighted Average Exercise Price Of Outstanding Share Options [Table] Table

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*

 ego:DisclosureOfNumberAndWeightedAverageExercisePriceOfOutstandingShareOptionsTable
1096 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1097 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1098 Employee stock option plan [member] Member ego:EmployeeStockOptionPlanMember
1099 Disclosure Of Number And Weighted Average Exercise Price Of Outstanding Share Options [Line Items] LineItems ego:DisclosureOfNumberAndWeightedAverageExercisePriceOfOutstandingShareOptionsLineItems
1100 Weighted average exercise price, At January 1, Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1101 Weighted average exercise price, Regular options granted Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsGrantedInSharebasedPaymentArrangement
1102 Weighted average exercise price, Exercised Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExercisedInSharebasedPaymentArrangement
1103 Weighted average exercise price, Expired Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsExpiredInSharebasedPaymentArrangement
1104 Weighted average exercise price, Forfeited Concept (Monetary) For Period ifrs-full:WeightedAverageExercisePriceOfShareOptionsForfeitedInSharebasedPaymentArrangement
1105 Weighted average exercise price, At December 31, Concept (Monetary) As Of ifrs-full:WeightedAverageExercisePriceOfShareOptionsOutstandingInSharebasedPaymentArrangement
1106 Number of options, At January 1, Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1107 Number of options, Regular options granted Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
1108 Number of options, Exercised Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExercisedInSharebasedPaymentArrangement
1109 Number of options, Expired Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsExpiredInSharebasedPaymentArrangement
1110 Number of options, Forfeited Concept (Decimal) For Period ifrs-full:NumberOfShareOptionsForfeitedInSharebasedPaymentArrangement
1111 Number of options, At December 31, Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1112 2427405 - Disclosure - Share-based payments - Summary of Range of Exercise Prices of Outstanding Share Options (Detail) Network

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 http://imetrix.edgar-online.com/role/ShareBasedPaymentsSummaryOfRangeOfExercisePricesOfOutstandingShareOptionsDetail
1113 Disclosure of range of exercise prices of outstanding share options [table] Table

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 ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable
1114 Range [axis] Axis ifrs-full:RangeAxis
1115 Ranges [member] Member ifrs-full:RangesMember
1116 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1117 Top of range [member] Member ifrs-full:TopOfRangeMember
1118 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1119 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1120 Employee stock option plan [member] Member ego:EmployeeStockOptionPlanMember
1121 Ranges of exercise prices for outstanding share options [axis] Axis ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsAxis
1122 Ranges of exercise prices for outstanding share options [member] Member ifrs-full:RangesOfExercisePricesForOutstandingShareOptionsMember
1123 $6.00 to $6.99 [member] Member ego:ShareBasedPaymentsExercisePriceOneMember
1124 $16.00 to $16.99 [member] Member ego:ShareBasedPaymentsExercisePriceTwoMember
1125 $18.00 to $18.99 [member] Member ego:ShareBasedPaymentsExercisePriceThreeMember
1126 $19.00 to $19.99 [member] Member ego:ShareBasedPaymentsExercisePriceFourMember
1127 $21.00 to $21.99 [member] Member ego:ShareBasedPaymentsExercisePriceFiveMember
1128 $22.00 to $22.99 [member] Member ego:ShareBasedPaymentsExercisePriceSixMember
1129 $23.00 to $23.99 [member] Member ego:ShareBasedPaymentsExercisePriceSevenMember
1130 $29.00 to $29.99 [member] Member ego:ShareBasedPaymentsExercisePriceEightMember
1131 $30.00 to $30.99 [member] Member ego:ShareBasedPaymentsExercisePriceNineMember
1132 $31.00 to $31.99 [member] Member ego:ShareBasedPaymentsExercisePriceTenMember
1133 $33.00 to $33.99 [member] Member ego:ShareBasedPaymentsExercisePriceElevenMember
1134 $34.00 to $34.99 [member] Member ego:ShareBasedPaymentsExercisePriceTwelveMember
1135 $35.00 to $35.99 [member] Member ego:ShareBasedPaymentsExercisePriceThirteenMember
1136 $39.00 to $39.99 [member] Member ego:ShareBasedPaymentsExercisePriceFourteenMember
1137 Disclosure of range of exercise prices of outstanding share options [line items] LineItems ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems
1138 Option outstanding, Shares (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOutstandingShareOptions
1139 Option outstanding, weighted average remaining contractual life (years) Concept (Decimal) As Of ifrs-full:WeightedAverageRemainingContractualLifeOfOutstandingShareOptions
1140 Option outstanding, Weighted average exercise price (CAD per share) Concept (Monetary) As Of ifrs-full:ExercisePriceOfOutstandingShareOptions
1141 Exercisable options, Shares (in shares) Concept (Decimal) As Of ego:NumberOfOutstandingShareOptionsExercisable
1142 Exercisable options, Weighted average exercise price (CAD per share) Concept (Monetary) As Of ego:ExercisePriceOfOutstandingShareOptionsExercisable
1143 2427406 - Disclosure - Share-based payments - Summary of Assumptions Used to Estimate the Fair Value of Options Granted (Detail) Network

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 http://imetrix.edgar-online.com/role/ShareBasedPaymentsSummaryOfAssumptionsUsedToEstimateFairValueOfOptionsGrantedDetail
1144 Disclosure of range of exercise prices of outstanding share options [table] Table

*

*

 ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsTable
1145 Range [axis] Axis ifrs-full:RangeAxis
1146 Ranges [member] Member ifrs-full:RangesMember
1147 Bottom of range [member] Member ifrs-full:BottomOfRangeMember
1148 Top of range [member] Member ifrs-full:TopOfRangeMember
1149 Disclosure of range of exercise prices of outstanding share options [line items] LineItems ifrs-full:DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems
1150 Risk-free interest rate (range) (%) Concept (Percent) For Period ifrs-full:DescriptionOfRiskFreeInterestRateShareOptionsGranted
1151 Expected volatility (range) (%) Concept (Percent) For Period ifrs-full:DescriptionOfExpectedVolatilityShareOptionsGranted
1152 Expected life (range) (years) Concept (Decimal) For Period ifrs-full:DescriptionOfOptionLifeShareOptionsGranted
1153 Expected dividends (CDN$) Concept (Monetary) For Period ifrs-full:ExpectedDividendShareOptionsGranted
1154 Forfeiture rate (%) Concept (Percent) For Period ego:ForfeitureRateShareOptionsGranted
1155 2427407 - Disclosure - Share-based payments - Summary of Status and Movements in RSUs and PSUs (Detail) Network

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*

 http://imetrix.edgar-online.com/role/ShareBasedPaymentsSummaryOfStatusAndMovementsInRsusAndPsusDetail
1156 Disclosure Of Other Equity Instruments [Table] Table

*

*

 ego:DisclosureOfOtherEquityInstrumentsTable
1157 Types of share-based payment arrangements [axis] Axis ifrs-full:TypesOfSharebasedPaymentArrangementsAxis
1158 Share-based payment arrangements [member] Member ifrs-full:SharebasedPaymentArrangementsMember
1159 Restricted Shares Without Performance Criteria [member] Member ego:RestrictedSharesWithoutPerformanceCriteriaMember
1160 Restricted Shares With Performance Criteria [member] Member ego:RestrictedSharesWithPerformanceCriteriaMember
1161 Performance share unit [member] Member ego:PerformanceShareUnitMember
1162 Disclosure Of Other Equity Instruments [Line Items] LineItems ego:DisclosureOfOtherEquityInstrumentsLineItems
1163 At January 1, (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1164 Granted (in shares) Concept (Decimal) For Period ifrs-full:NumberOfInstrumentsOtherEquityInstrumentsGranted
1165 Redeemed (in shares) Concept (Decimal) For Period ego:NumberOfOtherEquityInstrumentsRedeemedInSharebasedPaymentArrangement
1166 Expired (in shares) Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsExpiredInSharebasedPaymentArrangement
1167 Forfeited (in shares) Concept (Decimal) For Period ifrs-full:NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
1168 At December 31, (in shares) Concept (Decimal) As Of ifrs-full:NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
1169 2428402 - Disclosure - Supplementary cash flow information - Summary of Change in cash flow information (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/SupplementaryCashFlowInformationSummaryOfChangeInCashFlowInformationDetail
1170 Implied Table Table

*

*

 implied:Table
1171 Supplemental Statement of Cash Flow [Abstract] Abstract ego:SupplementalStatementOfCashFlowAbstract
1172 Changes in non-cash working capital Abstract ifrs-full:AdjustmentsForReconcileProfitLossAbstract
1173 Accounts receivable and other Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInTradeAccountReceivable
1174 Inventories Concept (Monetary) For Period Debit ifrs-full:AdjustmentsForDecreaseIncreaseInInventories
1175 Accounts payable and accrued liabilities Concept (Monetary) For Period Credit ego:AdjustmentsForDecreaseIncreaseInAccountsPayableAndAccruedLiabilities
1176 Total Concept (Monetary) For Period Credit ifrs-full:IncreaseDecreaseInWorkingCapital
1177 Supplementary cash flow information Abstract ego:SupplementaryCashFlowInformationAbstract
1178 Income taxes paid Concept (Monetary) For Period Credit ifrs-full:IncomeTaxesPaidClassifiedAsOperatingActivities
1179 Interest paid Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsFinancingActivities
1180 2429402 - Disclosure - Financial risk management - Summary of Exposure to Various Currencies Denominated in Foreign Currency (Detail) Network

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*

 http://imetrix.edgar-online.com/role/FinancialRiskManagementSummaryOfExposureToVariousCurrenciesDenominatedInForeignCurrencyDetail
1181 Disclosure of nature and extent of risks arising from financial instruments [table] Table

*

*

 ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsTable
1182 Range [axis] Axis ifrs-full:RangeAxis
1183 Ranges [member] Member ifrs-full:RangesMember
1184 All Currencies [Domain] Member currency:AllCurrenciesDomain
1185 Canadian dollar [member] Member currency:CAD
1186 Australian dollar [member] Member currency:AUD
1187 Euro [member] Member currency:EUR
1188 Turkish lira [member] Member currency:TRY
1189 Chinese renminbi [member] Member currency:CNY
1190 Serbian Dinar [member] Member currency:RSD
1191 Romanian lei [member] Member currency:RON
1192 Great British pound [member] Member currency:GBP
1193 Brazilian real [member] Member currency:BRL
1194 Types of risks [axis] Axis ifrs-full:TypesOfRisksAxis
1195 Risks [member] Member ifrs-full:TypesOfRisksMember
1196 Currency risk [member] Member ifrs-full:CurrencyRiskMember
1197 Disclosure of nature and extent of risks arising from financial instruments [line items] LineItems ifrs-full:DisclosureOfNatureAndExtentOfRisksArisingFromFinancialInstrumentsLineItems
1198 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1199 Marketable securities Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
1200 Accounts receivable and other Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherReceivables
1201 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1202 Other non-current liability Concept (Monetary) As Of Credit ifrs-full:OtherNonfinancialLiabilities
1203 Net assets Concept (Monetary) As Of Debit ifrs-full:NetAssetsLiabilities
1204 2429403 - Disclosure - Financial risk management - Additional Information (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/FinancialRiskManagementAdditionalInformationDetail
1205 Disclosure of risk management [Table] Table

*

*

 ego:DisclosureOfRiskManagementTable
1206 Borrowings by name [axis] Axis ifrs-full:BorrowingsByNameAxis
1207 Borrowings by name [member] Member ifrs-full:BorrowingsByNameMember
1208 Senior notes [member] Member ego:SeniorNotes1Member
1209 Revolving credit facility [member] Member ego:RevolvingCreditFacility1Member
1210 Disclosure of risk management [line items] LineItems ego:DisclosureOfRiskManagementLineItems
1211 Increase/decrease in the U.S. dollar exchange rate against all currencies except Canadian dollar, Australian dollar, Euro, Turkish lira, Chinese renminbi, Swedish krona, Romanian lei, Great British pound and Brazilian real Concept (Percent) For Period ego:IncreaseDecreaseInExchangeRate
1212 Decrease/increase in profit (loss) before taxes due to 1% increase/decrease in the U.S. dollar exchange rate against all currencies except Canadian dollar, Australian dollar, Euro, Turkish lira, Chinese renminbi, Swedish krona, Romanian lei, Great British pound and Brazilian real Concept (Monetary) For Period Credit ego:IncreaseDecreaseInProfitLossBeforeTaxesDueToChangeInUSDollarExchangeRate
1213 Decrease/increase in other comprehensive income due to 1% increase/decrease in the U.S. dollar exchange rate against all currencies except Canadian dollar, Australian dollar, Euro, Turkish lira, Chinese renminbi, Swedish krona, Romanian lei, Great British pound and Brazilian real Concept (Monetary) For Period Credit ego:IncreaseDecreaseInOtherComprehensiveIncomeDueToChangeInExchangeRate
1214 Debt fixed interest rate Concept (Percent) As Of ifrs-full:BorrowingsInterestRate
1215 Maximum exposure to credit risk Concept (Monetary) As Of ifrs-full:MaximumExposureToCreditRisk
1216 Number of days from shipment Concept (xbrli:durationItemType) For Period ego:PaymentForMetalSalesPeriodFromShipment
1217 Debt to capital ratio Concept (Percent) As Of ego:DebtToCapitalRatios
1218 Net Debt to EBITDA ratio Concept (Pure) For Period ego:NetDebtToEBITDARatio
1219 2430402 - Disclosure - Commitments and Contractual Obligations - Summary of contractual obligations (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/CommitmentsAndContractualObligationsSummaryOfContractualObligationsDetail
1220 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1221 Maturity [axis] Axis ifrs-full:MaturityAxis
1222 Aggregated time bands [member] Member ifrs-full:AggregatedTimeBandsMember
1223 Later than one year and not later than two years [member] Member ifrs-full:LaterThanOneYearAndNotLaterThanTwoYearsMember
1224 Later than two years and not later than three years [member] Member ifrs-full:LaterThanTwoYearsAndNotLaterThanThreeYearsMember
1225 Later than three years and not later than four years [member] Member ifrs-full:LaterThanThreeYearsAndNotLaterThanFourYearsMember
1226 Later than four years [member] Member ego:LaterThanFourYearsMember
1227 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1228 Operating leases Concept (Monetary) As Of Credit ego:CapitalLeaseObligations1
1229 Purchase obligations Concept (Monetary) As Of Credit ego:PurchaseObligations
1230 Totals Concept (Monetary) As Of Credit ifrs-full:ContractualCapitalCommitments
1231 2430403 - Disclosure - Commitments and Contractual Obligations - Additional Information (Details) Network

*

*

 http://imetrix.edgar-online.com/role/CommitmentsAndContractualObligationsAdditionalInformationDetails
1232 Disclosure of contingent liabilities [table] Table

*

*

 ifrs-full:DisclosureOfContingentLiabilitiesTable
1233 Categories of related parties [axis] Axis ifrs-full:CategoriesOfRelatedPartiesAxis
1234 Related parties [member] Member ifrs-full:RelatedPartiesMember
1235 Subsidiaries [member] Member ifrs-full:SubsidiariesMember
1236 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1237 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1238 Zinc [member] Member ego:ZincMember
1239 Lead/Silver Concentrates [member] Member ego:LeadAndSilverConcentratesMember
1240 Gold Concentrate [member] Member ego:GoldConcentrateMember
1241 Disclosure of contingent liabilities [line items] LineItems ifrs-full:DisclosureOfContingentLiabilitiesLineItems
1242 Number of dry metric tonnes Concept (num:massItemType) For Period ego:NumberOfDryMetricTonnes
1243 Consideration paid Concept (Monetary) For Period Credit ifrs-full:ConsiderationPaidReceived
1244 Silver price ($/oz) Concept (Decimal) For Period ego:SilverPricePerOunce
1245 Expansion drilling (in meters) Concept (num:lengthItemType) For Period ego:ExpansionDrilling
1246 2432402 - Disclosure - Related party transactions - Summary of compensation paid or payable to key management (Detail) Network

*

*

 http://imetrix.edgar-online.com/role/RelatedPartyTransactionsSummaryOfCompensationPaidOrPayableToKeyManagementDetail
1247 Implied Table Table

*

*

 implied:Table
1248 Disclosure of transactions between related parties [abstract] Abstract ifrs-full:DisclosureOfTransactionsBetweenRelatedPartiesAbstract
1249 Salaries and other short-term employee benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationShorttermEmployeeBenefits
1250 Defined benefit pension plan Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationPostemploymentBenefits
1251 Share based payments Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationSharebasedPayment
1252 Termination benefits Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensationTerminationBenefits
1253 Compensation for key management personnel Concept (Monetary) For Period Debit ifrs-full:KeyManagementPersonnelCompensation
1254 2433402 - Disclosure - Financial instruments by category - Summary of Carrying Value and Fair Value of Financial Instruments (Detail) Network

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*

 http://imetrix.edgar-online.com/role/FinancialInstrumentsByCategorySummaryOfCarryingValueAndFairValueOfFinancialInstrumentsDetail
1255 Disclosure of fair value measurement of assets [table] Table

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*

 ifrs-full:DisclosureOfFairValueMeasurementOfAssetsTable
1256 Measurement [axis] Axis ifrs-full:MeasurementAxis
1257 Aggregated measurement [member] Member ifrs-full:AggregatedMeasurementMember
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1259 Carrying amount [member] Member ego:ReportedValueMeasurementMember
1260 Disclosure of fair value measurement of assets [line items] LineItems ifrs-full:DisclosureOfFairValueMeasurementOfAssetsLineItems
1261 Financial Assets Abstract ifrs-full:DisclosureOfFinancialAssetsAbstract
1262 Fair value through OCI Abstract ifrs-full:AvailableforsaleFinancialAssetsAbstract
1263 Marketable securities Concept (Monetary) As Of Debit ifrs-full:CurrentFinancialAssetsAvailableforsale
1264 Amortized cost Abstract ifrs-full:CategoriesOfFinancialAssetsAbstract
1265 Cash and cash equivalents Concept (Monetary) As Of Debit ifrs-full:CashAndCashEquivalents
1266 Term deposit Concept (Monetary) As Of Debit ifrs-full:ShorttermDepositsClassifiedAsCashEquivalents
1267 Restricted cash Concept (Monetary) As Of Debit ifrs-full:CurrentRestrictedCashAndCashEquivalents
1268 Accounts receivable and other Concept (Monetary) As Of Debit ifrs-full:TradeAndOtherCurrentReceivables
1269 Other assets Concept (Monetary) As Of Debit ifrs-full:OtherAssets
1270 Financial Liabilities at amortized cost Abstract ego:FinancialLiabilitiesMeasuredAtAmortisedCostAbstract
1271 Accounts payable and accrued liabilities Concept (Monetary) As Of Credit ifrs-full:TradeAndOtherCurrentPayables
1272 Debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings
1273 2438402 - Disclosure - Revenue (Details) Network

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*

 http://imetrix.edgar-online.com/role/RevenueDetails
1274 Disclosure of disaggregation of revenue from contracts with customers [table] Table

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*

 ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersTable
1275 Segments [axis] Axis ifrs-full:SegmentsAxis
1276 Segments [member] Member ifrs-full:SegmentsMember
1277 Turkey [member] Member ego:TurkeySegmentMember
1278 Greece [member] Member ego:GreeceSegmentMember
1279 Brazil [member] Member ego:BrazilSegmentMember
1280 Products and services [axis] Axis ifrs-full:ProductsAndServicesAxis
1281 Products and services [member] Member ifrs-full:ProductsAndServicesMember
1282 Gold [member] Member ego:GoldMember
1283 Gold Dore [member] Member ego:GoldDoreMember
1284 Gold Concentrate [member] Member ego:GoldConcentrateMember
1285 Zinc [member] Member ego:ZincMember
1286 Lead [member] Member ego:LeadMember
1287 Silver [member] Member ego:SilverMember
1288 Silver Dore [member] Member ego:SilverDoreMember
1289 Silver Concentrate [member] Member ego:SilverConcentrateMember
1290 Iron [member] Member ego:IronMember
1291 Disclosure of disaggregation of revenue from contracts with customers [line items] LineItems ifrs-full:DisclosureOfDisaggregationOfRevenueFromContractsWithCustomersLineItems
1292 Revenue from contracts with customers Concept (Monetary) For Period Credit ifrs-full:RevenueFromContractsWithCustomers
1293 Gain (loss) on revaluation of derivatives in trade receivables Concept (Monetary) For Period Credit ego:RevenueGainsLossesOnRevaluationOfDerivativesInTradeReceivables
1294 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1295 2439402 - Disclosure - Production costs - Summary of Product Cost (Detail) Network

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 http://imetrix.edgar-online.com/role/ProductionCostsSummaryOfProductCostDetail
1296 Implied Table Table

*

*

 implied:Table
1297 Expenses by nature [abstract] Abstract ifrs-full:ExpenseByNatureAbstract
1298 Labour Concept (Monetary) For Period Debit ifrs-full:WagesAndSalaries
1299 Fuel Concept (Monetary) For Period Debit ifrs-full:FuelExpense
1300 Reagents Concept (Monetary) For Period Debit ifrs-full:RawMaterialsAndConsumablesUsed
1301 Electricity Concept (Monetary) For Period Debit ifrs-full:EnergyExpense
1302 Mining contractors Concept (Monetary) For Period Debit ego:MiningContractorsExpense
1303 Operating and maintenance supplies and services Concept (Monetary) For Period Debit ifrs-full:RepairsAndMaintenanceExpense
1304 Site general and administrative costs Concept (Monetary) For Period Debit ego:SiteGeneralAndAdministrativeCosts
1305 Inventory change Concept (Monetary) For Period Debit ego:ChangeInInventoryCosts
1306 Royalties, production taxes and selling expenses Concept (Monetary) For Period Debit ego:RoyaltiesProductionTaxesAndSellingExpenses
1307 Production costs Concept (Monetary) For Period Debit ego:ProductionCosts1
1308 2440402 - Disclosure - Earnings per share - Summary of Weighted Average Shares and Adjusted Weighted Average Shares (Detail) Network

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 http://imetrix.edgar-online.com/role/EarningsPerShareSummaryOfWeightedAverageSharesAndAdjustedWeightedAverageSharesDetail
1309 Implied Table Table

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*

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1310 Weighted average ordinary shares and adjusted weighted average ordinary shares [abstract] Abstract ifrs-full:WeightedAverageSharesAndAdjustedWeightedAverageSharesAbstract
1311 Weighted average number of ordinary shares used in the calculation of basic earnings per share (in shares) Concept (Shares) For Period ifrs-full:WeightedAverageShares
1312 Diluted impact of stock options (in shares) Concept (Shares) For Period ifrs-full:DilutiveEffectOfShareOptionsOnNumberOfOrdinaryShares
1313 Weighted average number of ordinary shares used in the calculation of diluted earnings per share (in shares) Concept (Shares) For Period ifrs-full:AdjustedWeightedAverageShares
1314 2441402 - Disclosure - Segment Information - Additional Information (Detail) Network

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*

 http://imetrix.edgar-online.com/role/SegmentInformationAdditionalInformationDetail
1315 Implied Table Table

*

*

 implied:Table
1316 Disclosure of operating segments [abstract] Abstract ifrs-full:DisclosureOfOperatingSegmentsAbstract
1317 Number of reportable segments Concept (Integer) For Period ego:NumberOfReportableSegments1
1318 2441403 - Disclosure - Segment information - Summary of Operating Segments (Detail) Network

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*

 http://imetrix.edgar-online.com/role/SegmentInformationSummaryOfOperatingSegmentsDetail
1319 Disclosure of operating segments [table] Table

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*

 ifrs-full:DisclosureOfOperatingSegmentsTable
1320 Segments [axis] Axis ifrs-full:SegmentsAxis
1321 Segments [member] Member ifrs-full:SegmentsMember
1322 Turkey [member] Member ego:TurkeySegmentMember
1323 Canada [member] Member ego:CanadaSegmentMember
1324 Greece [member] Member ego:GreeceSegmentMember
1325 Romania [member] Member ego:RomaniaSegmentMember
1326 Brazil [member] Member ego:BrazilSegmentMember
1327 Other [member] Member ego:OtherCountriesMember
1328 Disclosure of operating segments [line items] LineItems ifrs-full:DisclosureOfOperatingSegmentsLineItems
1329 Information about profit and loss Abstract ifrs-full:RevenueAbstract
1330 Revenue Concept (Monetary) For Period Credit ifrs-full:Revenue
1331 Production costs Concept (Monetary) For Period Debit ego:ProductionCosts1
1332 Inventory write-down Concept (Monetary) For Period Debit ifrs-full:WritedownsReversalsOfInventories
1333 Depreciation Concept (Monetary) For Period Debit ifrs-full:DepreciationAndAmortisationExpense
1334 Earnings from mine operations Concept (Monetary) For Period Credit ifrs-full:GrossProfit
1335 Other material items of income and expense Abstract ego:OtherSegmentItemsAbstract
1336 Other write-down (write-up) of assets Concept (Monetary) For Period Debit ego:WritedownWriteupOfAssets
1337 Impairment of property, plant, and equipment Concept (Monetary) For Period ifrs-full:ImpairmentLossRecognisedInProfitOrLossPropertyPlantAndEquipment
1338 Exploration and evaluation expenses Concept (Monetary) For Period Debit ifrs-full:ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
1339 Income tax expense (recovery) Concept (Monetary) For Period Debit ego:ReconciliationOfIncomeTaxExpenseContinuingOperations
1340 Additions to property, plant and equipment during the period Concept (Monetary) For Period Debit ifrs-full:AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
1341 Capitalised interest Concept (Monetary) For Period Credit ifrs-full:InterestPaidClassifiedAsInvestingActivities
1342 Information about assets and liabilities Abstract ego:DisclosureOfSummarizedAssetsAndLiabilitiesPerSegmentAbstract
1343 Property, plant and equipment Concept (Monetary) As Of Debit ifrs-full:PropertyPlantAndEquipment
1344 Goodwill Concept (Monetary) As Of Debit ifrs-full:Goodwill
1345 Information about assets and liabilities Concept (Monetary) As Of Debit ego:LongLivedAssets
1346 Debt Concept (Monetary) As Of Credit ifrs-full:LongtermBorrowings

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