Financial instruments - Summary of Contractual Maturities for Financial Liabilities on Undiscounted Basis (Details) $ in Thousands	Dec. 31, 2025 USD ($)
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	$ 297,747
Convertible senior notes
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	265,542
Accounts payable and accrued liabilities
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	31,449
Obligations under office leases
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	756
2026
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	36,273
2026 \| Convertible senior notes
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	4,528
2026 \| Accounts payable and accrued liabilities
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	31,449
2026 \| Obligations under office leases
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	296
2027 and later
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	261,474
2027 and later \| Convertible senior notes
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	261,014
2027 and later \| Accounts payable and accrued liabilities
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	0
2027 and later \| Obligations under office leases
Disclosure Of Maturity Analysis For Nonderivative Financial Liabilities [Line Items]
Financial liabilities on undiscounted basis ,Total	$ 460