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Reclamation Obligations (Tables) | 12 Months Ended
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Dec. 31, 2024
Reclamation Obligations [Abstract] |
Summary of Reclamation obligations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | At December 31 |  | At December 31
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Reclamation obligations-by item: |  |  | ​ | ​ |  |
Elliot Lake |  | $ | 18,071 |  | $ | 19,796
MLJV and MWJV | ​ | ​ | 12,057 | ​ | ​ | 12,215
Wheeler River and other | ​ | ​ | 2,186 | ​ | ​ | 2,887
​ |  | $ | 32,314 |  | $ | 34,898
​ | ​ | ​ | ​ | ​ | ​ | ​
Reclamation obligations-by balance sheet presentation: | ​ | ​ | ​ | ​ | ​ | ​
Current |  | $ | 1,713 |  | $ | 2,256
Non-current | ​ | ​ | 30,601 | ​ | ​ | 32,642
​ |  | $ | 32,314 |  | $ | 34,898
Summary of Reclamation obligations continuity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Balance-January 1 |  | $ | 34,898 |  | $ | 29,459
Reclamation liability deposit from joint venture partner | ​ | ​ | — | ​ | ​ | 99
Accretion (note 17) | ​ | ​ | 1,895 | ​ | ​ | 1,681
Expenditures incurred | ​ | ​ | (2,491) | ​ | ​ | (3,118)
Liability adjustments-balance sheet (note 8) | ​ | ​ | (165) | ​ | ​ | 3,548
Liability adjustment-income statement (note 17) | ​ | ​ | (1,823) | ​ | ​ | 3,229
Balance-December 31 |  | $ | 32,314 |  | $ | 34,898

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