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Interests in Resource Properties (Tables) | 12 Months Ended
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Dec. 31, 2022
Interests in Resource Properties. |
Schedule of components of interests in resource properties | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 2022 |  | 2021
Iron ore royalty interest | ​ | $ | 201,802 | ​ | $ | 206,439
Hydrocarbon development and production assets | ​ |  | — | ​ |  | 31,260
Exploration and evaluation assets – hydrocarbon probable reserves | ​ |  | — | ​ |  | 12,367
Exploration and evaluation assets – hydrocarbon undeveloped lands | ​ |  | — | ​ |  | 4,640
​ | ​ | $ | 201,802 | ​ | $ | 254,706
​
Schedule of movements in interest in resource properties | Note 12. Interests in Resource Properties (continued) The movements in the iron ore royalty interest and hydrocarbon development and production assets included in non-current assets during the year ended December 31, 2022 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Reclassification | ​ | ​ | ​
​ | ​ | Opening | ​ | Decommissioning | ​ | to assets | ​ | Ending
Costs | ​ | balance | ​ | obligations | ​ | held for sale | ​ | balance
Iron ore royalty interest |  | $ | 218,203 |  | $ | — |  | $ | — |  | $ | 218,203
Hydrocarbon development and production assets | ​ |  | 46,592 | ​ |  | 1,339 | ​ |  | (47,931) | ​ | ​ | —
​ | ​ | $ | 264,795 | ​ | $ | 1,339 | ​ | $ | (47,931) | ​ | $ | 218,203
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | Reclassification | ​ | ​ | ​
​ | ​ | Opening | ​ | ​ | ​ | ​ | to assets | ​ | Ending
Accumulated depreciation | ​ | balance | ​ | Additions | ​ | held for sale | ​ | balance
Iron ore royalty interest |  | $ | 11,764 |  | $ | 4,637 |  | $ | — |  | $ | 16,401
Hydrocarbon development and production assets | ​ |  | 15,332 | ​ |  | 2,559 | ​ |  | (17,891) | ​ |  | —
​ | ​ | ​ | 27,096 | ​ | $ | 7,196 | ​ | $ | (17,891) | ​ | ​ | 16,401
Net book value | ​ | $ | 237,699 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | $ | 201,802
​ The movements in the iron ore royalty interest and hydrocarbon development and production assets included in non-current assets during the year ended December 31, 2021 were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Opening | ​ | Decommissioning | ​ | Ending
Costs | ​ | balance | ​ | obligations | ​ | balance
Iron ore royalty interest |  | $ | 218,203 |  | $ | — |  | $ | 218,203
Hydrocarbon development and production assets | ​ |  | 45,754 | ​ |  | 838 | ​ |  | 46,592
​ | ​ | $ | 263,957 | ​ | $ | 838 | ​ | $ | 264,795
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Opening | ​ | ​ | ​ | Ending
Accumulated depreciation | ​ | balance | ​ | Additions | ​ | balance
Iron ore royalty interest |  | $ | 6,853 |  | $ | 4,911 |  | $ | 11,764
Hydrocarbon development and production assets | ​ |  | 12,756 | ​ |  | 2,576 | ​ |  | 15,332
​ | ​ | ​ | 19,609 | ​ | $ | 7,487 | ​ | ​ | 27,096
Net book value | ​ | $ | 244,348 | ​ | ​ | ​ | ​ | $ | 237,699
​
Schedule of movements in exploration and evaluation assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2022 | ​ | 2021
​ | ​ | Probable | ​ | Undeveloped | ​ | Probable | ​ | Undeveloped
​ | ​ | reserves | ​ | lands | ​ | reserves | ​ | lands
Balance, beginning of year |  | $ | 12,367 |  | $ | 4,640 |  | $ | 12,367 |  | $ | 4,640
Reclassification to assets held for sale | ​ |  | (12,367) | ​ |  | (4,640) | ​ |  | — | ​ |  | —
Balance, end of year | ​ | $ | — | ​ | $ | — | ​ | $ | 12,367 | ​ | $ | 4,640
​

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