Asset Purchase and License Agreements - CSPC License Agreement (Details) - License Agreement - CSPC Megalith Biopharmaceutical Co., Ltd $ in Millions	1 Months Ended
Jul. 31, 2022 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront license fee	$ 27.0
Term of agreement (in years)	10 years
Number of days written prior notice to terminate agreement	180 days
Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Development and regulatory milestone payments	$ 148.0
Commercial milestone payments	1,000.0
Payments as percentage of non-royalty sublicense income	$ 50.0

The amount of commercial milestone payments under the collaboration agreement.

No definition available.

Name:	elev_CollaborationAgreementCommercialMilestonePayments
Namespace Prefix:	elev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of development and regulatory milestone payments under the collaboration agreement.

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No definition available.

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Name:	elev_CollaborationAgreementDevelopmentAndRegulatoryMilestonePayments
Namespace Prefix:	elev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Term of the collaboration agreement in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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No definition available.

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Name:	elev_CollaborationAgreementTerm
Namespace Prefix:	elev_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of upfront license fee payable under the collaboration agreement.

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No definition available.

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Name:	elev_CollaborationAgreementUpfrontLicenseFee
Namespace Prefix:	elev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount payable as percentage of non royalty sublease income.

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No definition available.

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Name:	elev_CollaborationAgreementsPaymentsAsPercentageOfNonRoyaltySubleaseIncome
Namespace Prefix:	elev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number days of prior written notice to terminate the agreement.

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No definition available.

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Name:	elev_CollaborationAndLicenseAgreementsNoticePeriod
Namespace Prefix:	elev_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_TypeOfArrangementAxis=elev_LicenseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=elev_CspcMegalithBiopharmaceuticalCo.LtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: