Amount Of Reasonably Possible Increase In Unobservable Input, Liabilities

No definition available.

Name:	abvx_AmountOfReasonablyPossibleIncreaseInUnobservableInputLiabilities
Namespace Prefix:	abvx_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Disclosure Of Detailed Information About Assets Acquisitions [Line Items]

+ References

No definition available.

+ Details

Name:	abvx_DisclosureOfDetailedInformationAboutAssetsAcquisitionsLineItems
Namespace Prefix:	abvx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Earn-Out At Fair Value, Assets Acquisitions

+ References

No definition available.

+ Details

Name:	abvx_EarnOutAtFairValueAssetsAcquisitions
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Earn-Out, Market Capitalization, Threshold

+ References

No definition available.

+ Details

Name:	abvx_EarnOutMarketCapitalizationThreshold
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Earn-Out, Maximum Amount

+ References

No definition available.

+ Details

Name:	abvx_EarnOutMaximumAmount
Namespace Prefix:	abvx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Earn-Out, Percentage

+ References

No definition available.

+ Details

Name:	abvx_EarnOutPercentage
Namespace Prefix:	abvx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Classes of financial instruments [domain]; Financial assets; Derivatives [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2024-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_FinancialLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of increase (decrease) in the fair value measurement of assets due to a reasonably possible increase in an unobservable input.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph h
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_h_ii&doctype=Standard
-URIDate 2024-03-27

+ Details

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

- Definition

The percentage of a reasonably possible increase in an unobservable input used in fair value measurement of liabilities.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 13
-IssueDate 2024-01-01
-Paragraph 93
-Subparagraph h
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2024-en-r&anchor=para_93_h_ii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_PercentageOfReasonablyPossibleIncreaseInUnobservableInputLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	ifrs-full_UnobservableInputsAxis=ifrs-full_HistoricalVolatilityForSharesMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=abvx_SharePriceMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_UnobservableInputsAxis=abvx_RiskFreeInterestRateMeasurementInputMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=abvx_EarnOutLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	abvx_AssetsAcquisitionsAxis=abvx_ProsynergiaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Financial liabilities - Prosynergia earn-out liability (Details) - EUR (€) € / shares in Units, € in Thousands	Dec. 31, 2022	Apr. 01, 2022	Dec. 31, 2024	Jun. 21, 2024	Mar. 28, 2024	Dec. 31, 2023	Nov. 02, 2023	Aug. 24, 2023	Aug. 20, 2023	Dec. 31, 2021
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Total financial liabilities	€ 49,797		€ 114,004			€ 77,045
Volatility
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Percentage of reasonably possible increase in unobservable input, liabilities	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%
Share price
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Amount of reasonably possible increase in unobservable input, liabilities	€ 1	€ 1	€ 1	€ 1	€ 1	€ 1	€ 1	€ 1	€ 1	€ 1
Risk-free rate
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Percentage of reasonably possible increase in unobservable input, liabilities	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%	1.00%
Prosynergia earn-out liability
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Total financial liabilities	€ 0
Prosynergia earn-out liability \| Volatility
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets	1	€ 12
Prosynergia earn-out liability \| Share price
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets	1	132
Prosynergia earn-out liability \| Risk-free rate
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Increase (decrease) in fair value measurement due to reasonably possible increase in unobservable input, assets	€ 1	17
Prosynergia
Disclosure Of Detailed Information About Assets Acquisitions [Line Items]
Earn-out, market capitalization threshold		€ 300,000
Earn-out, percentage		1.00%
Earn-out, maximum amount		€ 4,000
Earn-out measured at fair value		€ 1,446