XML 142 R122.htm IDEA: XBRL DOCUMENT v3.10.0.1

Subsequent Event (Details) - Weichai Ballard JV ¥ in Thousands, $ in Thousands	1 Months Ended		12 Months Ended
	Feb. 28, 2019 CNY (¥)	Feb. 28, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Disclosure of non-adjusting events after reporting period [line items]
Capital contribution			$ 14,286	$ 0
Capital Contribution
Disclosure of non-adjusting events after reporting period [line items]
Capital contribution	¥ 98,000	$ 14,500

X

- Definition

The aggregate cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2017-01-01
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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.

+ References

No definition available.

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