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Summary of Status of Equity Incentive Plan (Detail)
 12 Months Ended
Dec. 31, 2024
shares
$ / shares
Dec. 31, 2023
shares
$ / shares
Dec. 31, 2022
shares
Canadian Share Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Options Outstanding, Beginning balance | shares 23,055 23,055  
Options Outstanding, Exercised | shares (925)    
Options Outstanding, Forfeited | shares (10,170)    
Options Outstanding, Ending balance | shares 11,960 23,055  
Weighted Average Exercise Price, Beginning balance $ 113.01 $ 113.01  
Weighted Average Exercise Price, Exercised 87    
Weighted Average Exercise Price, Forfeitures 145.97    
Weighted Average Exercise Price, Ending balance $ 87 $ 113.01  
Options exercisable | shares 11,960 23,055 23,055
Canadian Share Options [Member] | Top of Range [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Range of Exercise Prices, Beginning balance $ 145.97 $ 145.97  
Range of Exercise Prices, Exercised 87    
Range of Exercise Prices, Forfeitures 145.97    
Range of Exercise Prices, Ending balance 87 145.97  
Canadian Share Options [Member] | Bottom Of Range [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Range of Exercise Prices, Beginning balance 87 87  
Range of Exercise Prices, Exercised 87    
Range of Exercise Prices, Forfeitures 145.97    
Range of Exercise Prices, Ending balance $ 87 $ 87  
U.S. Share Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Options Outstanding, Beginning balance | shares 128,398 141,748  
Options Outstanding, Granted | shares 0 0  
Options Outstanding, Exercised | shares (6,485)    
Options Outstanding, Forfeited | shares (61,861) (13,350)  
Options Outstanding, Ending balance | shares 60,052 128,398  
Weighted Average Exercise Price, Beginning balance $ 85.8 $ 84.84  
Weighted Average Exercise Price, Exercised 68.8    
Weighted Average Exercise Price, Forfeitures 106.37 75.66  
Weighted Average Exercise Price, Ending balance $ 66.44 $ 85.8  
Options exercisable | shares 60,052 128,398 141,748
U.S. Share Options [Member] | Top of Range [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Range of Exercise Prices, Beginning balance $ 111.47 $ 111.47  
Range of Exercise Prices, Exercised 68.8    
Range of Exercise Prices, Forfeitures 111.47 100.4  
Range of Exercise Prices, Ending balance 72.46 111.47  
U.S. Share Options [Member] | Bottom Of Range [Member]      
Disclosure of terms and conditions of share-based payment arrangement [Line Items]      
Range of Exercise Prices, Beginning balance 51.2 51.2  
Range of Exercise Prices, Exercised 68.8    
Range of Exercise Prices, Forfeitures 68.8 64.2  
Range of Exercise Prices, Ending balance $ 51.2 $ 51.2