v3.26.1
Fair value of financial assets and liabilities - Financial assets and liabilities measured at fair value (Details) - Recurring - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Fair value of financial assets and liabilities    
Liabilities at fair value $ 0.0 $ 0.0
Level 1 | Cash equivalents    
Fair value of financial assets and liabilities    
Market funds $ 364.2 $ 664.9