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Investment In Associate - Summary Of Investment In Associate (Detail) - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Share of income during the period    
Balance, December 31, 2022 $ 0  
Share of net income from associate 920 $ 0
Share of other comprehensive income (loss) from associate 539 0
Balance, December 31, 2023 240,116 0
IsoEnergy Ltd. [member]    
Share of income during the period    
Balance, December 31, 2022 0  
Fair value of retained interest in IsoEnergy on December 5, 2023 239,735  
Share of net income from associate 920  
Share of other comprehensive income (loss) from associate (539)  
Balance, December 31, 2023 240,116 $ 0
Fair value of investment in associate as at December 31, 2023 $ 216,289