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v3.23.1

Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2022
Asset Retirement Obligations |
Summary of long-term asset retirement obligations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |  | December 31,
​ | ​ | 2022 | ​ | 2021
​ | ​ | ​ | ​ | ​ | ​ | ​
Refinery | ​ | $ | 1,790 | ​ | $ | 1,336
Ontario Mineral Properties (Note 8) | ​ |  | — | ​ |  | 338
Long-term Asset Retirement Obligations | ​ | $ | 1,790 | ​ | $ | 1,674
​
Summary of continuity of the asset retirement obligation | ​
​ | ​ | ​ | ​
​ |  | Total ARO
Balance at January 1, 2021 | ​ | $ | 1,264
Change in estimate of discounted cash flows | ​ |  | 410
Balance at December 31, 2021 | ​ |  | 1,674
Change in estimate from discounting | ​ |  | (274)
Change in estimate of costs | ​ |  | 728
Transferred to liabilities held for sale (Note 8) | ​ |  | (338)
Balance at December 31, 2022 | ​ | $ | 1,790

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References No definition available. + Details
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References No definition available. + Details
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