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- Definition

Investments, Related Party Transactions

+ References

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- Definition

The amounts receivable resulting from related party transactions. [Refer: Related parties [member]]

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- Definition

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

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No definition available.

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- Definition

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

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- Definition

The amount of revenue arising from the rendering of services in related party transactions. [Refer: Revenue; Related parties [member]]

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Related party transactions - Transactions with Related Parties (Details) - USD ($) $ in Thousands			12 Months Ended
	Nov. 13, 2018	Sep. 26, 2016	Dec. 31, 2018	Dec. 31, 2017
Synergy Ballard JVCo
Disclosure of transactions between related parties [line items]
Percentage ownership interest		10.00%	10.00%
Synergy Ballard JVCo \| Joint venture
Disclosure of transactions between related parties [line items]
Trade and other receivables			$ 481	$ 1,415
Investments			0	676
Deferred revenue			2,021	2,973
Revenues			$ 17,547	30,916
Weichai Ballard JV
Disclosure of transactions between related parties [line items]
Percentage ownership interest	49.00%		49.00%
Weichai Ballard JV \| Associates
Disclosure of transactions between related parties [line items]
Trade and other receivables			$ 1,123	0
Investments			13,989	0
Deferred revenue			8,875	0
Revenues			$ 1,248	$ 0