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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

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