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Capital Management - Additional Information (Detail)
$ in Thousands
Dec. 31, 2024
CAD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
CAD ($)
Dec. 31, 2023
USD ($)
Jan. 01, 2023
CAD ($)
Disclosure Of Capitalisation [Line Items]          
Cash $ 73,771   $ 54,182   $ 21,587
Credit facility drawn 822,342        
Senior Credit Facility [Member]          
Disclosure Of Capitalisation [Line Items]          
Line of credit borrowing capacity   $ 375,000,000   $ 447,000,000  
Credit facility drawn   12,000   0  
Letters of Credit [Member]          
Disclosure Of Capitalisation [Line Items]          
Change in borrowings capacity   51,000,000   56,000,000  
Secured Facility [Member]          
Disclosure Of Capitalisation [Line Items]          
Line of credit facility, remaining capacity   40,000,000      
Letters of credit outstanding 9,000 23,000,000 20,000 28,000,000  
Secured Operating Facility [Member]          
Disclosure Of Capitalisation [Line Items]          
Line of credit borrowing capacity 119,000   $ 115,000    
40.0 Million Secured Operating Facilities [Member]          
Disclosure Of Capitalisation [Line Items]          
Line of credit facility, remaining capacity $ 40,000        
15.0 Million Secured Operating Facilities [Member]          
Disclosure Of Capitalisation [Line Items]          
Line of credit borrowing capacity   15,000,000   $ 15,000,000  
Credit facility drawn   $ 0