v3.26.1
Restructuring costs - Accrued workforce reduction cost (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2025
Jun. 30, 2026
Restructuring costs    
Balances at beginning of the year   $ 8.8
Workforce reduction costs accrued $ 10.3  
Workforce reduction costs paid   (4.8)
Currency translation adjustments, net   (0.2)
Current liability at the end of the year $ 8.8 $ 3.8