XML 89 R75.htm IDEA: XBRL DOCUMENT
v3.21.1

Corporate Information - Additional Information (Detail) |  |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 shares | Apr. 04, 2012 | Jan. 16, 2012 shares | Jan. 13, 2012 shares | Dec. 31, 2013 | Dec. 31, 2011 | Dec. 31, 2020 Subsidiaries Associate shares | Dec. 31, 2019 Subsidiaries Associate | Dec. 31, 2018 JointVenture | Dec. 31, 2015 shares
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Number of indirectly owned subsidiaries |  |  |  |  |  |  | 33 | 33 |  |
Number of directly owned subsidiaries |  |  |  |  |  |  | 9 | 9 |  |
Number of joint ventures |  |  |  |  |  |  |  | 4 | 4 |
Number of associate | Associate |  |  |  |  |  |  | 1 | 1 |  |
HL Global Enterprises Limited [member] |  |  |  |  |  |  |  |  |  |
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Ownership interest in subsidiary | 50.20% | 48.90% | 48.10% |  | 50.10% | 49.40% | 50.20% | 50.20% |  | 50.20%
Number of preference shares converted into ordinary shares |  |  |  | 24,189,170 |  |  |  |  |  |
Percentage of unconverted preference shares transfer to trustee |  |  |  | 100.00% |  |  |  |  |  |
Conversion of convertible preference shares into ordinary shares |  |  | 24,189,170 |  |  |  |  |  |  |
Number of shares purchased in open market | 465,000 |  |  |  |  |  |  |  |  |
Number of ordinary shares exercise to consolidation |  |  |  |  |  |  |  |  |  | 10
Number of ordinary shares exercised into consolidation |  |  |  |  |  |  |  |  |  | 1
Number of ordinary shares held upon completion of consolidation exercise |  |  |  |  |  |  |  |  |  | 47,107,707
Foreign Shares Of Yuchai [member] |  |  |  |  |  |  |  |  |  |
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Number of wholly owned subsidiaries | Subsidiaries |  |  |  |  |  |  | 6 |  |  |
Percentage of issued share capital held by group |  |  |  |  |  |  | 76.41% |  |  |
Number of shares owned by entity |  |  |  |  |  |  | 361,420,150 |  |  |
Guangxi Yuchai Machinery Group Company Limited [member] |  |  |  |  |  |  |  |  |  |
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Proportion of ownership interests held in parent |  |  |  |  |  |  | 22.09% |  |  |
Guangxi Yuchai Machinery Monopoly Development Company Limited [member] |  |  |  |  |  |  |  |  |  |
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Number of wholly owned subsidiaries | Subsidiaries |  |  |  |  |  |  | 29 | 29 |  |
Ownership interest in subsidiary |  |  |  |  |  |  | 54.90% | 54.90% |  |
Guangxi Yuchai Accessories Manufacturing Company Limited [member] |  |  |  |  |  |  |  |  |  |
Disclosure of Corporate Information [Line Items] |  |  |  |  |  |  |  |  |  |
Number of wholly owned subsidiaries | Subsidiaries |  |  |  |  |  |  | 2 |  |  |
Ownership interest in subsidiary |  |  |  |  |  |  | 76.40% | 76.40% |  |

X
- Definition Conversion of convertible preference shares into ordinary shares. + References No definition available. + Details
Name: | cyd_ConversionOfConvertiblePreferenceSharesIntoOrdinaryShares
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Disclosure of corporate information. + References No definition available. + Details
Name: | cyd_DisclosureOfCorporateInformationLineItems
Namespace Prefix: | cyd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of associates. + References No definition available. + Details
Name: | cyd_NumberOfAssociates
Namespace Prefix: | cyd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of directly owned subsidiaries + References No definition available. + Details
Name: | cyd_NumberOfDirectlyOwnedSubsidiaries
Namespace Prefix: | cyd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of indirectly owned subsidiaries. + References No definition available. + Details
Name: | cyd_NumberOfIndirectlyOwnedSubsidiaries
Namespace Prefix: | cyd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of joint ventures. + References No definition available. + Details
Name: | cyd_NumberOfJointVentures
Namespace Prefix: | cyd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of ordinary shares exercise to consolidation. + References No definition available. + Details
Name: | cyd_NumberOfOrdinarySharesExerciseToConsolidation
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of ordinary shares exercised into consolidation. + References No definition available. + Details
Name: | cyd_NumberOfOrdinarySharesExercisedIntoConsolidation
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of ordinary shares held upon completion of consolidation exercise. + References No definition available. + Details
Name: | cyd_NumberOfOrdinarySharesHeldUponCompletionOfConsolidationExercise
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of preference shares converted into Ordinary shares. + References No definition available. + Details
Name: | cyd_NumberOfPreferenceSharesConvertedIntoOrdinaryShares
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares purchased in open market. + References No definition available. + Details
Name: | cyd_NumberOfSharesPurchasedInOpenMarket
Namespace Prefix: | cyd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of subsidiaries. + References No definition available. + Details
Name: | cyd_NumberOfSubsidiaries
Namespace Prefix: | cyd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of unconverted preference shares transfer to trustee. + References No definition available. + Details
Name: | cyd_PercentageOfUnconvertedPreferenceSharesTransferToTrustee
Namespace Prefix: | cyd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proportion of ownership interest held by group. + References No definition available. + Details
Name: | cyd_ProportionOfOwnershipInterestsHeldByGroup
Namespace Prefix: | cyd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proportion of ownership interests held in parent. + References No definition available. + Details
Name: | cyd_ProportionOfOwnershipInterestsHeldInParent
Namespace Prefix: | cyd_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares in the entity held by the entity or by its subsidiaries or associates. [Refer: Associates [member]; Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause vi -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_vi&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_SharesInEntityHeldByEntityOrByItsSubsidiariesOrAssociates
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_JointVenturesAxis=cyd_HLGlobalEnterprisesLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cyd_ForeignSharesOfYuchaiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cyd_GuangxiYuchaiMachineryGroupCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cyd_GuangxiYuchaiMachineryMonopolyDevelopmentCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=cyd_GuangxiYuchaiAccessoriesManufacturingCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |