XML 152 R138.htm IDEA: XBRL DOCUMENT
v3.21.1

Issued capital - Summary of Issued Capital (Detail) ¥ in Thousands, shares in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 CNY (¥) shares | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) shares | Dec. 31, 2020 USD ($) shares
Disclosure of classes of share capital [line items] |  |  |  |
Ending balance | ¥ 2,081,138 | $ 321,595 | ¥ 2,081,138 |
Ordinary shares issued and fully paid |  |  |  |
Ending balance |  |  | 40,858,290 |
Equity |  |  |  |
Ending balance | ¥ 2,081,138 | $ 321,595 | ¥ 2,081,138 |
One special share issued and fully paid at US$0.10 per share | Less than RMB 1 thousand(US$1 thousand) | Less than RMB 1 thousand(US$1 thousand) | Less than RMB 1 thousand(US$1 thousand) |
Non-redeemable convertible cumulative preference shares | ¥ 0 |  | ¥ 0 | $ 0
Ordinary shares [member] |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |
Ordinary share of par value US$0.10 each | 100,000 |  | 100,000 | 100,000

X
- Definition Preferred Shares Issued And Outstanding Value + References No definition available. + Details
Name: | cyd_PreferredSharesIssuedAndOutstandingValue
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | ifrs-full_EquityAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_IssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares authorised. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_i&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesAuthorised
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_NumberOfSharesIssuedAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares issued by the entity, for which full payment has been received. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_ii&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesIssuedAndFullyPaid
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The description of the rights, preferences and restrictions attaching to a class of share capital including restrictions on the distribution of dividends and the repayment of capital. [Refer: Share capital [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_v&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_RightsPreferencesAndRestrictionsAttachingToClassOfShareCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |