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Accounts Payable and Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2021
Subclassifications of assets, liabilities and equities [abstract] |
Schedule of Accounts Payable and Accrued Liabilities |
| December 31, 2021 | December 31, 2020
Trade accounts payable and accrued liabilities | $137.6 |  | $117.7 |
Royalties payable | 3.0 |  | 3.3 |
Share-based compensation liability | 13.1 |  | 9.9 |
Current portion of decommissioning liability | 3.3 |  | — |
Current portion of equipment financing obligations | 0.4 |  | 0.5 |
| $157.4 |  | $131.4 |

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