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Equity-accounted Investments - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disclosure of joint ventures [line items]
Equity in loss of investment in joint venture and associates	$ 4,941	$ 10,131
Weichai Ballard JV
Disclosure of joint ventures [line items]
Equity in loss of investment in joint venture and associates	$ 4,941	$ 9,931
Proportion of ownership interest in joint venture	49.00%	49.00%
Synergy Ballard JV Co
Disclosure of joint ventures [line items]
Equity in loss of investment in joint venture and associates	$ 0	$ (200)
Proportion of ownership interest in joint venture		10.00%
Investment fair value cost		$ 0

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Investment Fair Value Cost

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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- Definition

The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Total for all joint ventures [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2024-01-01
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_21_a_iv&doctype=Standard
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The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Total for all associates [member]; Investments accounted for using equity method; Total for all joint ventures [member]; Profit (loss)]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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