v3.26.1
Leases - Lease Liabilities (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Jul. 12, 2024
Commitments [Line Items]      
Lease liabilities, beginning balance $ 36.6 $ 0.0  
Payments (16.5) (10.6)  
Interest (Note 20) 2.3 1.4  
Foreign exchange revaluation 0.6 (1.4)  
Lease liabilities, ending balance 23.0 36.6  
Current portion 11.8 15.2  
Non-current portion $ 11.2 21.4  
Argonaut Transaction      
Commitments [Line Items]      
Leases assumed as part of Argonaut transaction (Note 6)   $ 47.2 $ 47.2