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Investment In Associate - Summary Of Financial Information For Iso Energy (Detail) - CAD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Jan. 01, 2023 | Dec. 31, 2022
Disclosure Of Detailed Information About Financial Information [Line Items] |  |  |  |
Cash | $ 476,587 | $ 290,743 | $ 134,447 | $ 134,447
Marketable securities | 0 | 0 | 5,775 |
Total assets | 1,657,243 | 1,007,425 | 554,560 |
Current liabilities | 478,111 | 186,390 | 96,588 |
Total liabilities | 478,202 | 187,406 | $ 99,143 |
Loss for the period | (77,559) | 70,168 |  |
Other comprehensive loss (income) | 14,058 | (2,422) |  |
Total comprehensive loss | (63,501) | 67,746 |  |
IsoEnergy Ltd. [member] |  |  |  |
Disclosure Of Detailed Information About Financial Information [Line Items] |  |  |  |
Cash | 21,295 | 37,033 |  |
Other current assets | 7,110 | 1,192 |  |
Marketable securities | 31,181 | 17,036 |  |
Non-current assets | 281,249 | 291,937 |  |
Total assets | 340,835 | 347,198 |  |
Current liabilities | 35,104 | 41,065 |  |
Non-current liabilities | 2,568 | 3,113 |  |
Total liabilities | 37,672 | 44,178 |  |
Loss for the period | 42,135 | 18,689 |  |
Other comprehensive loss (income) | (10,172) | 2,618 |  |
Total comprehensive loss | $ 31,963 | $ 21,307 |  |

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