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Cash and Bank Balances - Summary of Cash and Bank Balances (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Bottom of range [member] |  |
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items] |  |
Interest rate short term bank deposit | 2.80% | 0.80%
Top of range [member] |  |
Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits [line items] |  |
Interest rate short term bank deposit | 5.80% | 4.40%

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- Definition Disclosure of detailed cash and cash equivalents short term bank deposits current restricted cash and long term bank deposits. + References No definition available. + Details
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Namespace Prefix: | cyd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Short term bank deposits interest rate. + References No definition available. + Details
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Namespace Prefix: | cyd_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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