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Accounts Payable and Accrued Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2025
Payables and Accruals [Abstract] |
Schedule of Components of Accounts Payable and Accrued Liabilities | Accounts payable and accrued liabilities consisted of the following:
(dollars in millions) | June 30, 2025 |  | December 31, 2024
Accounts payable | $ | 16.6 |  |  | $ | 13.4 |
Accrued liabilities |  |  |
Research and development expenses | 16.2 |  |  | 25.9 |
Employee expenses | 10.5 |  |  | 22.4 |
Income taxes | 3.3 |  |  | 3.2 |
Professional fees | 3.3 |  |  | 1.8 |
General and administrative and commercial expenses | 3.2 |  |  | 5.1 |
Total accounts payable and accrued liabilities | $ | 53.1 |  |  | $ | 71.8 |

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