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Income taxes - Income Tax Expense (Recovery) Attributable to Income (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Income Tax Expenses [Line Items]    
Current $ 7,843 $ 7,237
Deferred (69,356) (50,662)
Total (61,513) (43,425)
Canada    
Income Tax Expenses [Line Items]    
Current 4,184 4,560
Deferred (74,595) (33,993)
Total (70,411) (29,433)
United States    
Income Tax Expenses [Line Items]    
Current 1,579 1,024
Deferred 6,183 (19,772)
Total 7,762 (18,748)
Other regions    
Income Tax Expenses [Line Items]    
Current 2,080 1,653
Deferred (944) 3,103
Total $ 1,136 $ 4,756