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Supplemental Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2024
Supplemental Financial Information [Abstract] |
Summary of other (expense) income for continuing operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Gains (losses) on: | ​ | ​ | ​ | ​ | ​ | ​
Foreign exchange | ​ | $ | 2,278 | ​ | $ | 321
Disposal of property, plant and equipment | ​ |  | 162 | ​ |  | 1,299
Fair value changes: | ​ |  | ​ | ​ |  | ​
Investments-equity instruments (note 5) | ​ |  | (4,934) | ​ |  | (9)
Investments-uranium (note 5) | ​ |  | (32,129) | ​ |  | 134,180
Investments-convertible debentures (note 5) | ​ | ​ | (2,565) | ​ | ​ | 565
Reclamation obligation adjustments (note 11) | ​ |  | 1,823 | ​ |  | (3,229)
Gain on recognition of proceeds–UI Repayment Agreement | ​ | ​ | 5,256 | ​ | ​ | 4,097
Uranium investment carrying charges | ​ |  | (919) | ​ |  | (409)
Other | ​ |  | (221) | ​ |  | (343)
Other (expense) income – continuing operations | ​ | $ | (31,249) | ​ | $ | 136,472
Summary of finance income (expense) for continuing operations | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Interest income | ​ | $ | 7,719 | ​ | $ | 4,189
Interest expense | ​ |  | (5) | ​ |  | (4)
Accretion expense | ​ |  | ​ | ​ |  | ​
Deferred revenue (note 10) | ​ |  | (3,058) | ​ |  | (3,518)
Reclamation obligations (note 11) | ​ |  | (1,895) | ​ |  | (1,681)
Other | ​ | ​ | (103) | ​ | ​ | (48)
Finance income (expense) | ​ | $ | 2,658 | ​ | $ | (1,062)
Summary of lease related amounts recognized in the statement of income (loss) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Accretion expense on lease liabilities | ​ | $ | (82) | ​ | $ | (27)
Expenses relating to short-term leases | ​ |  | (6,189) | ​ |  | (5,753)
Expenses relating to non-short term low-value leases | ​ |  | (3) | ​ |  | —
Lease related expense-gross | ​ | $ | (6,274) | ​ | $ | (5,780)
Summary of change in non-cash operating working capital items in the consolidated statements of cash flows | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
(in thousands) |  | 2024 |  | 2023
​ | ​ | ​ | ​ | ​ | ​ | ​
Change in non-cash working capital items: |  | ​ |  |  | ​ |
Trade and other receivables | ​ | $ | (823) | ​ | $ | 2,230
Inventories | ​ |  | (165) | ​ |  | (866)
Prepaid expenses and other assets | ​ |  | (524) | ​ |  | (253)
Accounts payable and accrued liabilities | ​ |  | 9,181 | ​ |  | 759
Change in non-cash working capital items | ​ | $ | 7,669 | ​ | $ | 1,870
​

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