Financial Instruments and Risk Management (Credit Risk) (Details) - USD ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|
| Disclosure of detailed information about financial instruments [line items] | |||
| Cash and cash equivalents | $ 327.2 | $ 224.8 | $ 129.8 |
| Derivative assets | 0.0 | 6.6 | |
| Other receivables | 4.2 | 5.5 | |
| Total financial instrument exposure to credit risk | 331.4 | 242.6 | |
| Cash and cash equivalents | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Cash and cash equivalents | 327.2 | 224.8 | |
| Trade receivables | |||
| Disclosure of detailed information about financial instruments [line items] | |||
| Other receivables | $ 4.2 | $ 11.2 |