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Equity-accounted Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Join Ventures Investment [Roll Forward]
Investments, beginning balance	$ 24,026
Capital contribution to JV	0	$ 9,272
Equity in loss	(10,131)	(11,617)	[1]
Cumulative translation adjustment due to foreign exchange	821	(4,552)
Investments, ending balance	13,901	24,026
Weichai Ballard JV
Join Ventures Investment [Roll Forward]
Investments, beginning balance	24,026	28,982
Capital contribution to JV	0	9,272
Recognition of 49% profit on inventory not yet sold to third party, net	1,205	549
Equity in loss	(9,931)	(11,599)
Cumulative translation adjustment due to foreign exchange	(1,399)	(3,178)
Investments, ending balance	$ 13,901	$ 24,026
Proportion of ownership interest in joint venture	49.00%	49.00%
[1] Comparative information has been restated due to a discontinued operation (note 7).

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Join Ventures Investment

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The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]]

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The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

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