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Reporting Entity - Additional Information (Detail)
12 Months Ended
Dec. 05, 2023
Dec. 04, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
IsoEnergy Ltd. [member]          
Disclosure of reporting entity [line items]          
Proportion of ownership interest in subsidiary 34.00% 48.70% 32.80% 33.90% 50.10%