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v3.22.1

Trade and Other Payables - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2021
Disclosure Of Detailed Information About Trade And Other Payables [line items] |
Other current payables settlement term | 3 months
Bottom of range [member] |
Disclosure Of Detailed Information About Trade And Other Payables [line items] |
Trade payables settlement term | 60 days
Top of range [member] |
Disclosure Of Detailed Information About Trade And Other Payables [line items] |
Trade payables settlement term | 90 days

X
- Definition Disclosure of detailed information about trade and other payables line items. + References No definition available. + Details
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Namespace Prefix: | cyd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Other current payables settlement term. + References No definition available. + Details
Name: | cyd_OtherCurrentPayablesSettlementTerm
Namespace Prefix: | cyd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Trade payables settlement term. + References No definition available. + Details
Name: | cyd_TradePayablesSettlementTerm
Namespace Prefix: | cyd_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |