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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)