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v3.20.4

Contingent Consideration Payable - Narrative (Details) | Dec. 31, 2020
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Minimum |
Line of Credit Facility [Line Items] |
Discounted cash flow risk adjusted discount rate | 14.00%

X
- Definition This element represents the risk adjusted discount rate used for estimating fair value of cash flow. + References No definition available. + Details
Name: | avdl_DiscountedCashFlowRiskAdjustedDiscountRate
Namespace Prefix: | avdl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- 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_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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