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Non-controlling Interests - Additional Information (Detail) - CAD ($) |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Dec. 05, 2023 | Dec. 04, 2023 | Oct. 19, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
The subsidiaries with the exception of isoEnergy [member] |  |  |  |  |  |
Disclosure of noncontrolling interests [line items] |  |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  |  |  |  | 100.00%
IsoEnergy Ltd. [member] |  |  |  |  |  |
Disclosure of noncontrolling interests [line items] |  |  |  |  |  |
Proportion of ownership interest in subsidiary | 34.00% | 48.70% |  | 32.80% | 33.90% | 50.10%
Proportion of minority interest in subsidiary | 34.00% | 48.70% |  |  |  |
Non controlling interest derecognized during the period |  |  |  | $ 35,697,000 |  |
Retained investment in subsidiary at fair value |  |  |  | 239,735,000 |  |
Portion of gains losses recognized when control of subisidiarty is lost attributable to recognizing investment retained |  |  |  | $ 204,038,000 |  |
Share Price Considered For Calculating Fair Value | $ 4.09 |  |  |  |  |
IsoEnergy Ltd. [member] | Subscription Receipts [Member] |  |  |  |  |  |
Disclosure of noncontrolling interests [line items] |  |  |  |  |  |
Class of warrants or rights issued during the period units |  |  | 8,134,500 |  |  |
Class of warrants or rights issue price per unit |  |  | $ 4.5 |  |  |
Investment in warrants during the period shares |  |  | 3,333,350 |  |  |
Per share price of investment in warrant |  |  | $ 4.5 |  |  |
Investment in warrants during the period value |  |  | $ 15,000,000 |  |  |
Warrants converted into shares during the period shares | 3,333,350 |  |  |  |  |

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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
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