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Other assets (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Restricted cash | $ 39,478 | $ 19,897
Pension and OPEB plan assets (note 10) | 84,490 | 48,477
Income taxes recoverable | 10,665 | 8,751
Deferred financing costs | 2,560 | 26,211
Insurance recoveries (note 21) | 0 | 66,000
Other | 39,189 | 30,867
Total other assets | 176,382 | 200,203
Less: current portion | (12,760) | (15,800)
Other assets (note 11) | $ 163,622 | $ 184,403

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