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Income taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Expenses [Line Items]      
Canadian enacted statutory rate (percent) 26.50% 26.50%  
Valuation allowance for deferred tax assets $ 97,344 $ 107,583 $ 27,471
Undistributed earnings of foreign subsidiaries 908,449    
Minimum      
Income Tax Expenses [Line Items]      
Deferred tax asset, increase (decrease), amount 83,434    
Maximum      
Income Tax Expenses [Line Items]      
Deferred tax asset, increase (decrease), amount $ 151,759