Name:	elvr_NumberOfOtherEquityInstrumentsOtherNetChangesInShareBasedPaymentArrangement
Namespace Prefix:	elvr_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Number of rights converted to one right based on consolidation ratio.

No definition available.

Name:	elvr_NumberOfRightsConvertedForEveryOneRight
Namespace Prefix:	elvr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

Name:	elvr_ReconciliationOfOutstandingEquityRightsAbstract
Namespace Prefix:	elvr_
Data Type:	xbrli:stringItemType
Balance Type:	na
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Ratio of number of Rights that can be converted to number of shares.

No definition available.

Name:	elvr_RightsConversionToOrdinarySharesRatio
Namespace Prefix:	elvr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 47
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_NumberOfInstrumentsOtherEquityInstrumentsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The number of other equity instruments (ie other than share options) exercised or vested in a share-based payment arrangement.

Name:	ifrs-full_NumberOfOtherEquityInstrumentsExercisedOrVestedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The number of other equity instruments (ie other than share options) forfeited in a share-based payment arrangement.

Name:	ifrs-full_NumberOfOtherEquityInstrumentsForfeitedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement.

Name:	ifrs-full_NumberOfOtherEquityInstrumentsOutstandingInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

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Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_MeasurementAxis=ifrs-full_RecurringFairValueMeasurementMember
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_DeferredShortTermIncentivePlan2025Member
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_DeferredShortTermIncentivePlan2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_EmployeeSharePlan2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_EmployeeSharePlan2026Member
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_LongTermIncentivePlan2025Member
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_LongTermIncentivePlan2026Member
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Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=elvr_FY24TransitionalManagementIncentivePlanMember
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_MeasurementAxis=ifrs-full_NonrecurringFairValueMeasurementMember
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