XML 91 R84.htm IDEA: XBRL DOCUMENT v3.8.0.1

Investments in Subsidiaries - Details of Significant Subsidiaries of the Group (Parenthetical) (Detail) - Yuchai [Member] - Jining Yuchai Engine Company Limited [Member]	Dec. 31, 2017	Dec. 31, 2016	Sep. 30, 2014
Disclosure of subsidiaries [Line Items]
Percentage of equity interest disposed			70.00%
Percentage of control	100.00%	100.00%

X

- Definition

Percentage of equity disposed.

+ References

No definition available.

+ Details

Name:	cyd_PercentageOfEquityDisposed
Namespace Prefix:	cyd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- 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.

+ Details

Name:	ifrs-full_DisclosureOfSignificantInvestmentsInSubsidiariesLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2016-01-13
-Paragraph B64
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2016-03-30&anchor=para_B64_c&doctype=Appendix&seq=2
-URIDate 2016-03-31

+ Details

Name:	ifrs-full_PercentageOfVotingEquityInterestsAcquired
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=cyd_YuchaiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cyd_JiningYuchaiEngineCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: