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Debt - Summary of Debt (Detail) - Senior notes [member] | 12 Months Ended
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Dec. 31, 2017
December 15, 2017 [member] |
Disclosure of financial liabilities [line items] |
Percentage of principal amount notes redeemed | 101.531%
2018 and thereafter [member] |
Disclosure of financial liabilities [line items] |
Percentage of principal amount notes redeemed | 100.00%

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- Definition Percentage of principal amount notes redeemed. + References No definition available. + Details
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Namespace Prefix: | ego_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_MaturityAxis=ego_TwoThousandAndEighteenAndThereafterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |