Finance costs (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Finance costs. | ||||
| Interest expenses - third party borrowings | $ 64.2 | $ 62.5 | $ 199.6 | $ 186.8 |
| Fair value loss on non-deliverable forwards | 6.5 | 36.9 | ||
| Interest and finance charges for lease liabilities | 12.5 | 10.5 | 36.4 | 28.7 |
| Net foreign exchange loss on derivative instruments - realized | 3.3 | 3.3 | ||
| Interest expenses - withholding tax on interest | 4.5 | 1.5 | 13.3 | 18.4 |
| Net foreign exchange loss arising from financing - realized | 4.9 | 4.7 | 9.4 | 11.5 |
| Fees on borrowings and financial derivatives | 2.2 | 3.1 | 5.5 | 6.7 |
| Fair value loss on embedded options | 18.5 | 7.1 | ||
| Unwinding of discount on decommissioning liability | 1.1 | 1.5 | 3.6 | 4.3 |
| Fair value loss on contingent consideration | 1.2 | |||
| Finance costs | $ 114.4 | $ 87.1 | $ 313.0 | $ 259.7 |