Lease contracts - Summary of Right of use Assets (Details) $ in Millions |
9 Months Ended |
|---|---|
|
Sep. 30, 2026
USD ($)
| |
| Movement In Operating Lease, Right-of-Use Asset [Roll Forward] | |
| As of January 1, 2026 | $ 4.6 |
| New right of use assets | 1.9 |
| Depreciation and amortization | (0.8) |
| Foreign exchange and other movements | (0.1) |
| As of September 30, 2026 | 5.5 |
| Real Estate | |
| Movement In Operating Lease, Right-of-Use Asset [Roll Forward] | |
| As of January 1, 2026 | 4.5 |
| New right of use assets | 1.9 |
| Depreciation and amortization | (0.8) |
| Foreign exchange and other movements | (0.1) |
| As of September 30, 2026 | 5.5 |
| Other assets | |
| Movement In Operating Lease, Right-of-Use Asset [Roll Forward] | |
| As of January 1, 2026 | 0.1 |
| New right of use assets | 0.0 |
| Depreciation and amortization | (0.1) |
| Foreign exchange and other movements | 0.0 |
| As of September 30, 2026 | $ 0.0 |