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Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Payables and Accruals [Abstract]
Accounts payable	$ 24.4	$ 13.4
Accrued liabilities
Research and development expenses	18.2	25.9
Employee expenses	17.5	22.4
Income taxes	4.8	3.2
General and administrative and commercial expenses	3.7	5.1
Professional fees	0.9	1.8
Accounts payable and accrued liabilities	$ 69.5	$ 71.8

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- Definition

Accrued General And Administrative And Commercial, Current

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Accrued research and development expense current.

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- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

+ References

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-Topic 210
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-Name Accounting Standards Codification
-Section S99
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-Subparagraph (SX 210.5-02(20))
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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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