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Asset Retirement Obligations - Additional Information (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 CAD ($)
Asset Retirement Obligations |
Estimated cost of closure | $ 3,614
Surety bond as financial assurance | $ 3,450
Keeley-Frontier patents |
Asset Retirement Obligations |
Ownership interest | 50.00%

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