Number of defined benefit plans.

No definition available.

Name:	ego_NumberOfDefinedBenefitPlans
Namespace Prefix:	ego_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Refundable tax of percentage of gain on defined benefit pension plans.

+ References

No definition available.

+ Details

Name:	ego_RefundableTaxOfPercentageOfGainOnDefinedBenefitPensionPlans
Namespace Prefix:	ego_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The decrease (increase) in net defined benefit liability (asset) resulting from contributions to a defined benefit plan by the employer. [Refer: Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph f
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_f&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ContributionsToPlanByEmployerNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

Name:	ifrs-full_DisclosureOfDefinedBenefitPlansLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan in respect of settlements. [Refer: Gains (losses) arising from settlements, net defined benefit liability (asset); Net defined benefit liability (asset); Defined benefit plans [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph g
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_g&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_PaymentsInRespectOfSettlementsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The decrease (increase) in the net defined benefit liability (asset) resulting from the return on plan assets. The return on plans assets is interest, dividends and other revenue derived from the plan assets, together with realised and unrealised gains or losses on the plan assets, less any costs of managing plan assets and less any tax payable by the plan itself, other than tax included in the actuarial assumptions used to measure the present value of the defined benefit obligation. [Refer: Plan assets [member]; Net defined benefit liability (asset); Actuarial assumptions [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 19
-IssueDate 2017-01-01
-Paragraph 141
-Subparagraph c
-Clause i
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=19&date=2017-03-01&anchor=para_141_c_i&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ReturnOnPlanAssetsNetDefinedBenefitLiabilityAsset
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	ifrs-full_NetDefinedBenefitLiabilityAssetAxis=ifrs-full_PlanAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=ego_DefinedBenefitPensionPlansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_DefinedBenefitPlansAxis=ego_SupplementalPensionPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Defined benefit plans - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Pension_Plan	Dec. 31, 2016 USD ($)
Disclosure of defined benefit plans [line items]
Number of defined benefit pension plans \| Pension_Plan		2
Refundable tax of percentage of gain on defined benefit pension plans		50.00%
Actual return on plan assets		$ 1,416	$ 3,801
Plan assets [member]
Disclosure of defined benefit plans [line items]
Contributions by employer		1,415	1,728
Benefit payments		(1,542)	(471)
Defined Benefit Pension Plans [member] \| Plan assets [member]
Disclosure of defined benefit plans [line items]
Contributions by employer		219
Benefit payments		(57)	(26)
Supplemental pension plan [member] \| Plan assets [member]
Disclosure of defined benefit plans [line items]
Contributions by employer		1,196	1,728
Benefit payments		$ (1,485)	$ (445)
Canadian Pension Plan [member] \| Defined Benefit Pension Plans [member]
Disclosure of defined benefit plans [line items]
Contributions by employer	$ 67
Canadian Pension Plan [member] \| Supplemental pension plan [member]
Disclosure of defined benefit plans [line items]
Contributions by employer	$ 510