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Other assets - Schedule of Other Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Restricted cash $ 19,997 $ 43,562
Pension and OPEB plan assets (note 10) 48,477 26,482
Long-term deposits and cash collateral 19,336 22,537
Income taxes recoverable 9,988 7,100
Deferred financing costs 27,176 28,586
Insurance recoveries (note 22(a)) 66,000 0
Other 31,080 21,596
Total other assets 222,054 149,863
Less: current portion (23,061) (22,564)
Other assets (note 11) $ 198,993 $ 127,299