XML 103 R89.htm IDEA: XBRL DOCUMENT
v3.21.1

Investment in Joint Ventures - Summarized Financial Information of Joint Ventures and Reconciliation with Carrying Amount of Investment in Consolidated Financial Statements (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2017 CNY (¥)
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Non-current assets | ¥ 7,029,973 |  | ¥ 6,471,887 |  | $ 1,086,331 |  |
Cash and bank balances | 5,877,647 |  | 5,753,268 | ¥ 5,559,890 | 908,264 | $ 889,044 | ¥ 5,390,324
Others | 23,164 |  | 26,956 |  | 3,579 |  |
Total assets | 26,290,958 |  | 23,854,191 | 21,657,964 | 4,062,701 |  |
Non-current liabilities | (1,406,453) |  | (1,071,751) |  | (217,338) |  |
Others |  |  | (999) |  |  |  |
Total liabilities | (14,458,248) |  | (12,280,806) | (10,510,410) | (2,234,211) |  |
Equity | 11,832,710 |  | 11,573,385 | 11,147,554 | 1,828,490 |  | ¥ 10,961,904
Investment in joint ventures | 227,120 |  | 273,991 | 222,812 | 35,096 |  |
Revenue | 20,581,170 | $ 3,180,376 | 18,016,085 | 16,263,248 |  |  |
Depreciation and amortization | (494,607) | (76,430) | (465,209) | (433,885) |  |  |
Interest expense | (147,293) | (22,761) | (126,851) | (108,339) |  |  |
Profit/(loss) for the year, representing total comprehensive income for the year | 712,710 | 110,133 | 872,217 | 1,056,291 |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | (59,422) | $ (9,183) | 19,215 | ¥ 11,693 |  |  |
Y & C Engine Co., Ltd. [Member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Non-current assets | 740,423 |  | 774,046 |  |  |  |
Cash and bank balances | 160,844 |  | 164,942 |  |  |  |
Others | 1,287,935 |  | 1,060,805 |  |  |  |
Total assets | 2,189,202 |  | 1,999,793 |  |  |  |
Non-current liabilities | (417,759) |  | (84,154) |  |  |  |
Others | (1,340,704) |  | (1,396,116) |  |  |  |
Total liabilities | (1,758,463) |  | (1,480,270) |  |  |  |
Equity | ¥ 430,739 |  | ¥ 519,523 |  |  |  |
Proportion of the Group's ownership | 45.00% | 45.00% | 45.00% | 45.00% |  |  |
Group's share of net assets | ¥ 193,833 |  | ¥ 233,786 |  |  |  |
Unrealized profit on transactions with joint venture | (48,234) |  | (57,704) |  |  |  |
Investment in joint ventures | 145,599 |  | 176,082 |  | 22,499 |  |
Revenue | 3,021,877 |  | 2,404,244 | ¥ 1,443,238 |  |  |
Depreciation and amortization | (59,406) |  | (26,099) | (45,254) |  |  |
Interest expense | (40,709) |  | (29,606) | (24,605) |  |  |
Profit/(loss) for the year, representing total comprehensive income for the year | ¥ (88,785) |  | ¥ 44,484 | ¥ 43,359 |  |  |
Proportion of the Group's ownership | 45.00% | 45.00% | 45.00% | 45.00% |  |  |
Group's share of profit/(loss) | ¥ (39,953) |  | ¥ 20,018 | ¥ 19,512 |  |  |
Unrealized profit on transactions with joint venture | (4,063) |  | 8,466 | (1,900) |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | (44,016) | $ (6,802) | 28,484 | 17,612 |  |  |
Y & C Engine Co., Ltd. [Member] | Significant Joint Ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Investment in joint ventures | 145,599 |  | 176,082 |  |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | (44,016) |  | 28,484 | 17,612 |  |  |
Joint ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Non-current assets | 857,641 |  | 876,409 |  | 132,530 |  |
Cash and bank balances | 206,173 |  | 228,774 |  | 31,860 |  |
Others | 1,597,953 |  | 1,290,257 |  | 246,929 |  |
Total assets | 2,661,767 |  | 2,395,440 |  | 411,319 |  |
Non-current liabilities | (417,759) |  | (84,154) |  | (64,556) |  |
Others | (1,651,627) |  | (1,597,447) |  | (255,223) |  |
Total liabilities | (2,069,386) |  | (1,681,601) |  | (319,779) |  |
Equity | 592,381 |  | 713,839 |  | 91,540 |  |
Investment in joint ventures | 227,120 |  | 273,991 |  | 35,096 |  |
Revenue | 3,375,542 | 521,617 | 2,586,549 | 1,603,818 |  |  |
Depreciation and amortization | (62,116) | (9,599) | (32,503) | (48,998) |  |  |
Interest expense | (42,692) | (6,597) | (34,623) | (26,294) |  |  |
Profit/(loss) for the year, representing total comprehensive income for the year | (121,459) | (18,769) | 25,970 | 39,162 |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | (59,422) | (9,183) | 19,215 | 11,693 |  |  |
Joint ventures [member] | Significant Joint Ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Investment in joint ventures | 220,454 |  | 267,807 |  | 34,066 |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | (59,935) | (9,262) | 19,712 | 10,730 |  |  |
Joint ventures [member] | Other Joint Ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Investment in joint ventures | 6,666 |  | 6,184 |  | 1,030 |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | 513 | $ 79 | (497) | ¥ 963 |  |  |
MTU Yuchai Power Co., Ltd [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Non-current assets | 71,635 |  | 78,362 |  |  |  |
Cash and bank balances | 43,056 |  | 9,265 |  |  |  |
Others | 266,123 |  | 221,482 |  |  |  |
Total assets | 380,814 |  | 309,109 |  |  |  |
Others | (244,963) |  | (179,680) |  |  |  |
Total liabilities | (244,963) |  | (179,680) |  |  |  |
Equity | ¥ 135,851 |  | ¥ 129,429 |  |  |  |
Proportion of the Group's ownership | 50.00% | 50.00% | 50.00% | 50.00% |  |  |
Group's share of net assets | ¥ 67,926 |  | ¥ 64,714 |  |  |  |
Unrealized profit on transactions with joint venture | (5,709) |  | (4,783) |  |  |  |
Investment in joint ventures | 62,217 |  | 59,931 |  | $ 9,614 |  |
Revenue | 307,699 |  | 178,796 | ¥ 160,580 |  |  |
Depreciation and amortization | (2,350) |  | (6,379) | (3,744) |  |  |
Interest expense | (1,983) |  | (5,017) | (1,689) |  |  |
Profit/(loss) for the year, representing total comprehensive income for the year | ¥ 6,421 |  | ¥ 600 | ¥ (4,197) |  |  |
Proportion of the Group's ownership | 50.00% | 50.00% | 50.00% | 50.00% |  |  |
Group's share of profit/(loss) | ¥ 3,211 |  | ¥ 300 | ¥ (2,099) |  |  |
Unrealized profit on transactions with joint venture | 27 |  | 294 | (4,783) |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | 3,238 | $ 500 | 594 | (6,882) |  |  |
MTU Yuchai Power Co., Ltd [member] | Significant Joint Ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Investment in joint ventures | 62,217 |  | 59,931 |  |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | 3,238 |  | 594 | ¥ (6,882) |  |  |
Eberspaecher Yuchai [Member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Non-current assets | 45,583 |  | 24,001 |  |  |  |
Cash and bank balances | 2,273 |  | 54,567 |  |  |  |
Others | 43,895 |  | 7,970 |  |  |  |
Total assets | 91,751 |  | 86,538 |  |  |  |
Others | (65,960) |  | (21,651) |  |  |  |
Total liabilities | (65,960) |  | (21,651) |  |  |  |
Equity | ¥ 25,791 |  | ¥ 64,887 |  |  |  |
Proportion of the Group's ownership | 49.00% | 49.00% | 49.00% |  |  |  |
Unrealized profit on transactions with joint venture | ¥ 12,638 |  | ¥ 31,794 |  |  |  |
Revenue | 45,966 |  | 3,509 |  |  |  |
Depreciation and amortization | (360) |  | (25) |  |  |  |
Profit/(loss) for the year, representing total comprehensive income for the year | ¥ (39,095) |  | ¥ (19,114) |  |  |  |
Proportion of the Group's ownership | 49.00% | 49.00% | 49.00% |  |  |  |
Group's share of profit/(loss) | ¥ (19,157) |  | ¥ (9,366) |  |  |  |
Eberspaecher Yuchai [Member] | Significant Joint Ventures [member] |  |  |  |  |  |  |
Disclosure of joint ventures [line items] |  |  |  |  |  |  |
Investment in joint ventures | 12,638 |  | 31,794 |  |  |  |
Group's share of profit of other joint ventures, representing the Group's share of total comprehensive income of other joint ventures | ¥ (19,157) |  | ¥ (9,366) |  |  |  |

X
- Definition Share of net assets of joint venture. + References No definition available. + Details
Name: | cyd_ShareOfNetAssetsOfJointVenture
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Share of profit (loss) of joint ventures accounted for using equity method before adjustments. + References No definition available. + Details
Name: | cyd_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethodBeforeAdjustments
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Unrealized profit on transactions with joint venture. + References No definition available. + Details
Name: | cyd_UnrealizedProfitOnTransactionsWithJointVenture
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unrealized profit on upstream or downstream transactions with joint venture. + References No definition available. + Details
Name: | cyd_UnrealizedProfitOnUpstreamOrDownstreamTransactionsWithJointVenture
Namespace Prefix: | cyd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of a present economic resource controlled by the entity as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_c&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_b&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_e&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_Assets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2020-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2020-en-r&anchor=para_45&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B13 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_i&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_CashAndCashEquivalents
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of change in equity resulting from transactions and other events, other than those changes resulting from transactions with owners in their capacity as owners. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2020-01-01 -Paragraph 32 -Subparagraph a -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2020-en-r&anchor=para_32_a_ii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2020-en-r&anchor=para_24_b&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B12 -Subparagraph b -Clause ix -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B12_b_ix&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 106 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_106_a&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B10 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 81A -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_81A_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ComprehensiveIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of depreciation and amortisation expense. Depreciation and amortisation are the systematic allocations of depreciable amounts of assets over their useful lives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_e&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B13 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B13_d&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 102 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_102&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_99&doctype=Standard -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 104 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_104&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DepreciationAndAmortisationExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_DisclosureOfJointVenturesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of residual interest in the assets of the entity after deducting all its liabilities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2020-en-r&anchor=para_24_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2020-01-01 -Paragraph 32 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2020-en-r&anchor=para_32_a_i&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_a&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_b&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_e&doctype=Standard -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -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_Equity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of expense arising from interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23_d&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_e&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B13 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B13_f&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
Name: | ifrs-full_InterestExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of investments in joint ventures in an entity's separate financial statements. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 10 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_10&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_InvestmentsInJointVentures
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of a present obligation of the entity to transfer an economic resource as a result of past events. Economic resource is a right that has the potential to produce economic benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_b&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2020-01-01 -Paragraph 93 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2020-en-r&anchor=para_93_e&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_d&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23&doctype=Standard -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_Liabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of assets that do not meet the definition of current assets. [Refer: Current assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_66&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B12 -Subparagraph b -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B12_b_ii&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B10 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
Name: | ifrs-full_NoncurrentAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of liabilities that do not meet the definition of current liabilities. [Refer: Current liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B12 -Subparagraph b -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B12_b_iv&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 69 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_69&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B10 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
Name: | ifrs-full_NoncurrentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of current assets that the entity does not separately disclose in the same statement or note. [Refer: Current assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_OtherCurrentAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_OtherCurrentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Joint ventures [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2020-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=27&code=ifrs-tx-2020-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph 21 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_21_a_iv&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInJointVenture
Namespace Prefix: | ifrs-full_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 28 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_28_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 23 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_23_a&doctype=Standard -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 32 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_32&doctype=Standard -URIDate 2020-01-01 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 33 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_33_a&doctype=Standard -URIDate 2020-01-01 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_34&doctype=Standard -URIDate 2020-01-01 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 82 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_82_a&doctype=Standard -URIDate 2020-01-01 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 103 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_103&doctype=Standard -URIDate 2020-01-01 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 102 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_102&doctype=Standard -URIDate 2020-01-01 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2020-01-01 -Paragraph 33 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2020-en-r&anchor=para_33_b_i&doctype=Standard -URIDate 2020-01-01 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B12 -Subparagraph b -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B12_b_v&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 11: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B10 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
Name: | ifrs-full_Revenue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The entity's share of the profit (loss) of joint ventures accounted for using the equity method. [Refer: Investments accounted for using equity method; Joint ventures [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_85&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_JointVenturesAxis=cyd_YAndCEngineCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cyd_SignificantJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=ifrs-full_JointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=cyd_OtherJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=cyd_MtuYuchaiPowerCompanyLimitedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=cyd_EberspaecherYuchaiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |