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Accounts Payable and Accrued Liabilities
12 Months Ended
Dec. 31, 2022
Subclassifications of assets, liabilities and equities [abstract]  
Accounts Payable and Accrued Liabilities
10.ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
December 31, 2022December 31, 2021
Trade accounts payable and accrued liabilities$147.6 $137.6 
Royalties payable2.2 3.0 
Derivative liabilities (note 18)4.2 — 
Share-based compensation liability18.3 13.1 
Current portion of decommissioning liability8.5 3.3 
Current portion of equipment financing obligations0.4 0.4 
$181.2 $157.4