v3.25.4
Income taxes - Measurement of results for tax purposes (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Current tax expenses      
Current year $ 27.2 $ 31.2 $ 26.0
Taxes in respect of previous years (1.8) 0.7 2.5
Total current tax expenses 25.4 31.9 28.5
Deferred tax expenses      
Origination and reversal of temporary differences 151.6 19.3 (156.1)
Total income taxes in income statements $ 177.0 $ 51.2 $ (127.6)