v3.26.1
Long-Term Investments - Additional Information (Detail)
¥ in Thousands, $ in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Oct. 31, 2022
CNY (¥)
Oct. 31, 2022
HKD ($)
Apr. 30, 2022
CNY (¥)
Dec. 31, 2025
CNY (¥)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
CNY (¥)
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Sep. 30, 2025
CNY (¥)
Mar. 31, 2025
CNY (¥)
Dec. 31, 2024
USD ($)
Mar. 31, 2022
Dec. 31, 2021
CNY (¥)
Oct. 31, 2021
CNY (¥)
Oct. 31, 2021
USD ($)
Jan. 31, 2021
CNY (¥)
Schedule of Long Term Investments [Line Items]                                
Equity Method Investments       ¥ 703,316   ¥ 600,300   $ 104,620     $ 90,055          
Equity Method Investments, Fair Value Disclosure       ¥ 69,015   78,351                    
Subscription of equity investment | $         $ 150,000                      
Percentage of financial interests hold by limited partner       60.70%       60.70%                
Percentage of financial interests                       60.70%        
Percentage of financial interests hold by other third party investors       39.30%       39.30%                
Equity securities without readily determinable fair value cumulative amount upward adjustment       ¥ 39,301   31,790                    
Equity securities without readily determinable fair value cumulative amount downward adjustment       0   106,805                    
Equity securities without readily determinable fair value downward adjustment annual amount       0   24,189 ¥ 89,933                  
Equity securities without readily determinable fair value upward price adjustment annual amount       114,316   ¥ 0 ¥ 39,107                  
Preferred Equity [Member]                                
Schedule of Long Term Investments [Line Items]                                
Payment to acquire equity securities without a readily determinable fair value     ¥ 50,000                          
Long term investments reclassification from debt investments to equity investments without readily determinable far value     ¥ 57,832                          
Asset-Backed Securities [Member]                                
Schedule of Long Term Investments [Line Items]                                
Notes and Securities                 ¥ 710,000 ¥ 895,000            
Semiconductors [Member]                                
Schedule of Long Term Investments [Line Items]                                
Proceeds from Sale of Equity Securities, FV-NI       53,786                        
Equity Securities, FV-NI, Realized Gain (Loss)       23,018                        
Batteries [Member]                                
Schedule of Long Term Investments [Line Items]                                
Proceeds from Sale of Equity Securities, FV-NI       28,571                        
Equity Securities, FV-NI, Realized Gain (Loss)       ¥ 16,676                        
Common Stock [Member]                                
Schedule of Long Term Investments [Line Items]                                
Payment to acquire minority equity interest ¥ 141,981 $ 156,982                            
Dogotix [Member]                                
Schedule of Long Term Investments [Line Items]                                
Other equity investments                         ¥ 190,000      
Huitian [Member]                                
Schedule of Long Term Investments [Line Items]                                
Equity Method Investments                           ¥ 574,146 $ 90,000 ¥ 24,551
Equity Method Investments, Fair Value Disclosure                           ¥ 591,506    
Huitian [Member] | Convertible Bond [Member]                                
Schedule of Long Term Investments [Line Items]                                
Equity Method Investments | $                             20,000  
Debt Instrument, Issued, Principal | $         20,000                      
Debt Instrument, Increase, Accrued Interest | $         $ 4,800                      
Huitian [Member] | Preferred Stock [Member]                                
Schedule of Long Term Investments [Line Items]                                
Equity Method Investments | $                             $ 70,000