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Financial liabilities - Breakdown of financial liabilities by maturity (Details) € in Thousands | Sep. 02, 2022 EUR (€)
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Disclosure of detailed information about borrowings [line items] |
Royalty certificate, percentage of future sales | 2.00%
Royalty certificate, maximum amount | € 172,000
Royalty certificates |
Disclosure of detailed information about borrowings [line items] |
Royalty certificate, percentage of future sales | 2.00%
Royalty certificate, maximum amount | € 172,000
Royalty certificate, expiration period | 15 years

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- Definition Royalty Certificate, Expiration Period + References No definition available. + Details
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Namespace Prefix: | abvx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

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- Definition Royalty Certificate, Maximum Amount + References No definition available. + Details
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Namespace Prefix: | abvx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Royalty Certificate, Percentage Of Future Sales + References No definition available. + Details
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Namespace Prefix: | abvx_
Data Type: | dtr-types: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 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
Name: | ifrs-full_ClassesOfFinancialLiabilitiesAxis=abvx_RoyaltyCertificatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |