XML 113 R99.htm IDEA: XBRL DOCUMENT
v3.22.1

Depreciation, amortization, shipping and handling expenses - Summary of Sales Related Shipping and Handling Expenses Not Separately Billed to Customers (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 CNY (¥) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥)
Selling general and administrative expenses [member] |  |  |  |
Disclosure of income statement [line items] |  |  |  |
Selling, general and administrative expenses | ¥ 224,292 | $ 35,477 | ¥ 237,683 | ¥ 221,255

X
- Definition Disclosure of income statement [line items] + References No definition available. + Details
Name: | cyd_DisclosureOfIncomeStatementLineItems
Namespace Prefix: | cyd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Shipping and handling costs. + References No definition available. + Details
Name: | cyd_ShippingAndHandlingCosts
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_InitiallyAppliedIFRSsAxis=cyd_SellingGeneralAndAdministrativeExpensesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |