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Convertible Debentures - Summary of Detailed Information about Convertible Debentures, Valuation Assumptions (Detail)
 12 Months Ended
Dec. 04, 2023
$ / shares
Sep. 22, 2023
$ / shares
Dec. 31, 2023
$ / shares
Dec. 31, 2022
$ / shares
2023 Debentures        
Convertible debentures [line items]        
Volatility   45.00% 43.00%  
Expected life in years   5.0 years 4.7 years  
Risk free interest rate   4.63% 3.84%  
Expected dividend yield   0.00% 0.00%  
Credit spread   17.16% 16.60%  
Underlying Share Prices   $ 6.12 $ 7  
Conversion exercise price   $ 6.76 $ 6.76  
2020 IsoEnergy Debentures        
Convertible debentures [line items]        
Volatility 54.00%     52.80%
Expected life in years 1.7 years     2.6 years
Risk free interest rate 4.18%     4.27%
Expected dividend yield 0.00%     0.00%
Credit spread 22.22%     23.85%
Underlying Share Prices $ 4.13     $ 2.91
Conversion exercise price $ 0.88     $ 0.88
Exchange rate (C$:US$) 0.739     0.738
2022 IsoEnergy Debentures        
Convertible debentures [line items]        
Volatility 54.00%     52.80%
Expected life in years 4.0 years     4.9 years
Risk free interest rate 3.96%     3.76%
Expected dividend yield 0.00%     0.00%
Credit spread 22.22%     23.85%
Underlying Share Prices $ 4.13     $ 2.91
Conversion exercise price $ 4.33     $ 4.33
Exchange rate (C$:US$) 0.739     0.738