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Marketable Securities - Additional Information (Details) | 9 Months Ended
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Sep. 30, 2024
Maximum |
Marketable Securities [Line Items] |
Marketable securities, contractual maturity period | 13 months

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- Definition Investments held in marketable securities, contractual maturities period. + References No definition available. + Details
Name: | avdx_InvestmentsHeldInMarketableSecuritiesContractualMaturitiesPeriod
Namespace Prefix: | avdx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- 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. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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