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Revenue from Contracts with Customers - Summary of Contract Balances (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2024
Disclosure of contract assets liabilities [abstract] |
Contract performance obligations description | According to the business customary practice, the remaining performance obligations (unfulfilled service-type maintenance service) at the year-end is expected to be satisfied within 2 years.

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- Definition Disclosure of contract assets liabilities. + References No definition available. + Details
Name: | ck0000932695_DisclosureOfContractAssetsLiabilitiesAbstract
Namespace Prefix: | ck0000932695_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The description of when the entity typically satisfies its performance obligations. [Refer: Performance obligations [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2024-01-01 -Paragraph 119 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_119_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DescriptionOfWhenEntityTypicallySatisfiesPerformanceObligations
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration