XML 43 R31.htm IDEA: XBRL DOCUMENT
v3.25.2

Significant accounting policies (Details) | Jun. 30, 2025 subsidiary
--- | ---
Accounting Policies [Abstract] |
Number of wholly-owed subsidiaries | 1

X
- Definition Represents the number of wholly owned subsidiaries included in the reporting of the financial statements. + References No definition available. + Details
Name: | abus_WhollyOwnedSubsidiariesIncludedinFinancialStatements
Namespace Prefix: | abus_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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