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v3.21.2

Contingencies (Details) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 cause | Sep. 22, 2016 state
Loss Contingencies [Line Items] |  |
Number of states in the antitrust litigation | state |  | 41
Humana and Centene Actions |  |
Loss Contingencies [Line Items] |  |
Number of causes alleged | cause | 5 |

X
- Definition Number of causes of action. + References No definition available. + Details
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Namespace Prefix: | aqst_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of states in the antitrust litigation. + References No definition available. + Details
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Namespace Prefix: | aqst_
Data Type: | xbrli:integerItemType
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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_LitigationCaseAxis=aqst_HumanaAndCenteneActionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |