0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - Consolidated Balance Sheets link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - Consolidated Statements of Operations and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statement of Stockholders’ Equity link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Organization link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Significant accounting policies link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Fair value measurements link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Investments in marketable securities link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Investment in Genevant link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Property and equipment link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Accounts payable and accrued liabilities link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Sale of future royalties link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Contingencies and commitments link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Collaborations and royalty entitlements link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Shareholders’ equity link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Stock-based compensation link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Segment Reporting link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Income taxes link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Restructuring link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Related party transactions link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Significant accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Significant accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Fair value measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Investments in marketable securities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Property and equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Accounts payable and accrued liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Sale of future royalties (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Collaborations and royalty entitlements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Stock-based compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Segment Reporting (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Income taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Restructuring (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Organization (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Significant accounting policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Significant accounting policies - Estimated useful lives of property and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Significant accounting policies - Computation of basic and diluted net income (loss) per common share (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Fair value measurements - Valuation (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Fair value measurements  - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Fair value measurements  - Assets and liabilities measured at fair value on recurring basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair value measurements - Changes in fair value of contingent consideration (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Investments in marketable securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Investments in marketable securities - narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Investment in Genevant (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Leases - Lease cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Leases - Maturity of lease liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Leases - Maturity of lease liability (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Property and equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Accounts payable and accrued liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Accounts payable and accrued liabilities - Restructuring (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Sale of future royalties - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Sale of future royalties - Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Contingencies and commitments (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Collaborations and royalty entitlements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Collaborations and royalty entitlements - Summary of revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Shareholders’ equity (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Stock-based compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Stock-based compensation - Activity related to stock options (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Stock-based compensation - Stock options outstanding under the Arbutus Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Stock-based compensation - Valuation assumptions for stock options under the Arbutus Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Stock-based compensation - Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Stock-based compensation - Stock-based compensation expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Segment Reporting (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Income taxes - Provision/Benefit (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Income taxes - Income Tax Rate Reconciliation, Post ASU 2023-09 Update (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Income taxes - Income Tax Rate Reconciliation, Prior Period (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Income taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Income taxes - Deferred tax assets and liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Restructuring (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Related party transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink