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Intangible Assets - Summary of Intangible Assets (Detail) ¥ in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 CNY (¥) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 CNY (¥) | Dec. 31, 2021 CNY (¥)
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | ¥ 1,874,824 |  |  |
Amortization | 109,913 | $ 15,473 | ¥ 64,939 | ¥ 38,957
Intangible assets and goodwill ending balance | 1,951,133 | 274,668 | 1,874,824 |
Technology Know-how [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 440,133 |  |  |
Intangible assets and goodwill ending balance | 1,084,627 | 152,687 | 440,133 |
Development costs [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 1,052,244 |  |  |
Intangible assets and goodwill ending balance | 484,059 | 68,143 | 1,052,244 |
Goodwill [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 212,636 |  |  |
Intangible assets and goodwill ending balance | 212,636 | 29,933 | 212,636 |
Trademarks [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 169,811 |  |  |
Intangible assets and goodwill ending balance | 169,811 | $ 23,905 | 169,811 |
Cost [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 2,113,119 |  | 1,931,938 |
Addition | 186,222 |  | 181,181 |
Intangible assets and goodwill ending balance | 2,299,341 |  | 2,113,119 | 1,931,938
Cost [member] | Technology Know-how [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 672,753 |  | 551,526 |
Transfer | 754,407 |  | 121,227 |
Intangible assets and goodwill ending balance | 1,427,160 |  | 672,753 | 551,526
Cost [member] | Development costs [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 1,052,244 |  | 992,290 |
Addition | 186,222 |  | 181,181 |
Transfer | (754,407) |  | (121,227) |
Intangible assets and goodwill ending balance | 484,059 |  | 1,052,244 | 992,290
Cost [member] | Goodwill [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 218,311 |  | 218,311 |
Intangible assets and goodwill ending balance | 218,311 |  | 218,311 | 218,311
Cost [member] | Trademarks [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | 169,811 |  | 169,811 |
Intangible assets and goodwill ending balance | 169,811 |  | 169,811 | 169,811
Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | (238,295) |  | (173,356) |
Amortization | 109,913 |  | 64,939 |
Intangible assets and goodwill ending balance | (348,208) |  | (238,295) | (173,356)
Accumulated depreciation, amortisation and impairment [member] | Technology Know-how [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | (232,620) |  | (167,681) |
Amortization | 109,913 |  | 64,939 |
Intangible assets and goodwill ending balance | (342,533) |  | (232,620) | (167,681)
Accumulated depreciation, amortisation and impairment [member] | Goodwill [member] |  |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |  |
Intangible assets and goodwill beginning balance | (5,675) |  | (5,675) |
Intangible assets and goodwill ending balance | ¥ (5,675) |  | ¥ (5,675) | ¥ (5,675)

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