v3.26.1
Share-Based Compensation - Summary of RSU activities (Details) - 2018 Plan - Restricted Stock Units (RSUs) [Member]
$ / shares in Units, ¥ in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2025
CNY (¥)
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
$ / shares
Dec. 31, 2024
CNY (¥)
shares
Dec. 31, 2023
$ / shares
Dec. 31, 2023
CNY (¥)
Dec. 31, 2025
USD ($)
Number of RSUs              
Outstanding at beginning of the year (in shares) | shares 67,741,348 67,741,348          
Granted (in shares) | shares 13,703,508 13,703,508          
Vested (in shares) | shares (22,865,316) (22,865,316)          
Forfeited (in shares) | shares (2,980,244) (2,980,244)          
Outstanding at end of the year (in shares) | shares 55,599,296 55,599,296   67,741,348      
Weighted average grand date fair value              
Outstanding at beginning of the year | $ / shares   $ 21.173          
Granted | $ / shares   29.9743 $ 30.6378   $ 23.386    
Vested | $ / shares   19.188          
Forfeited | $ / shares   25.9896          
Outstanding at end of the year | $ / shares   $ 23.9004 $ 21.173        
Restricted share units vested ¥ 3,133,340 $ 448,062   ¥ 3,797,104   ¥ 2,765,817  
Unrecognized share-based compensation expenses ¥ 3,597,971           $ 514,503
Weighted-average period for recognition of share-based compensation expense relating to unvested options 1 year 10 months 2 days 1 year 10 months 2 days