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Investments in Subsidiaries - Summarized Financial Information Including Goodwill On Acquisition And Consolidation Adjustment But Before Intercompany Eliminations Of Subsidiaries With Material Non Controlling Interests (Details)) ¥ 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, 2017 CNY (¥)
Summarized statement of financial position |  |  |  |  |  |
Current assets | ¥ 19,260,985 |  | ¥ 17,382,304 |  | $ 2,976,370 |
Current liabilities | (13,051,795) |  | (11,209,055) |  | (2,016,873) |
Non-current liabilities | (1,406,453) |  | (1,071,751) |  | (217,338) |
Total equity | 11,832,710 |  | 11,573,385 | ¥ 11,147,554 | 1,828,490 | ¥ 10,961,904
Attributable to NCI | 2,818,086 |  | 2,805,856 |  | 435,474 |
Summarized statement of comprehensive income |  |  |  |  |  |
Revenue | 20,581,170 | $ 3,180,376 | 18,016,085 | 16,263,248 |  |
Profit after tax | 779,326 | 120,427 | 860,700 | 974,400 |  |
Total comprehensive income for the year | 712,710 | 110,133 | 872,217 | 1,056,291 |  |
Attributable to NCI | 219,744 | 33,956 | 261,848 | 292,356 |  |
Summarized statement of cash flows |  |  |  |  |  |
Operating | 1,415,368 | 218,714 | 1,583,016 | 670,601 |  |
Investing | (785,753) | (121,421) | (810,477) | (79,992) |  |
Financing | (461,832) | (71,367) | (589,429) | (449,525) |  |
Guangxi Yuchai Machinery Company Lmited [member] |  |  |  |  |  |
Summarized statement of financial position |  |  |  |  |  |
Current assets | 18,395,754 |  | 16,444,627 |  | 2,842,667 |
Non-current assets, excluding goodwill | 6,722,233 |  | 6,160,217 |  | 1,038,776 |
Goodwill | 212,636 |  | 212,636 |  | 32,858 |
Current liabilities | (13,035,680) |  | (11,162,938) |  | (2,014,384) |
Non-current liabilities | (1,293,007) |  | (964,084) |  | (199,806) |
Net assets | 11,001,936 |  | 10,690,458 |  | 1,700,111 |
Total equity | 11,001,936 |  | 10,690,458 |  | 1,700,111 |
Attributable to NCI | 2,624,933 |  | 2,603,227 |  | $ 405,627 |
Summarized statement of comprehensive income |  |  |  |  |  |
Revenue | 20,557,660 | 3,176,743 | 17,980,304 | 16,210,467 |  |
Profit after tax | 829,042 | 128,111 | 825,807 | 972,010 |  |
Total comprehensive income for the year | 826,214 | 127,674 | 828,861 | 867,438 |  |
Attributable to NCI | 229,231 | 35,423 | 254,284 | 252,394 |  |
Summarized statement of cash flows |  |  |  |  |  |
Operating | 1,476,034 | 228,089 | 1,632,557 | 701,716 |  |
Investing | (794,291) | (122,741) | (858,904) | (331,416) |  |
Financing | (505,997) | (78,191) | (656,576) | (66,975) |  |
Net increase in cash and cash equivalents | ¥ 175,746 | $ 27,157 | ¥ 117,077 | ¥ 303,325 |  |

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