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Equity-accounted Investments - Financial Information of Weichai Ballard (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of joint ventures [line items] |  |  |
Current assets | $ 698,878 | $ 864,741 |
Current liabilities | (75,586) | (70,586) |
Carrying amount of investment | 8,238 | 13,901 |
Net loss | 324,245 | 177,716 |
Corporate share of net loss | $ 4,941 | $ 10,131 |
Weichai Ballard JV |  |  |
Disclosure of joint ventures [line items] |  |  |
Proportion of ownership interest in joint venture | 49.00% | 49.00% |
Net assets | $ 11,096 | $ 16,607 |
Carrying amount of investment | 8,238 | 13,901 | $ 24,026
Corporate share of net loss | 4,941 | 9,931 |
Weichai Ballard JV | Weichai Ballard JV |  |  |
Disclosure of joint ventures [line items] |  |  |
Current assets | 40,993 | 63,023 |
Non-current assets | 50 | 132 |
Current liabilities | (18,398) | (29,265) |
Net assets | 22,645 | 33,890 |
Incorporation costs | 324 | 324 |
Elimination of unrealized profit on downstream sales, net of sale to third party | (3,182) | (3,030) |
Carrying amount of investment | 8,238 | 13,901 |
Revenue | 2,290 | 12,705 |
Net loss | 10,084 | 20,268 |
Corporate share of net loss | $ 4,941 | $ 9,931 |

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