v3.26.1
Share-based Compensation - Schedule of stock option activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Options        
Number of Options and Shares, Exercised (in shares) (37,540,734)      
2019 and 2020 Share Incentive Plan        
Number of Options        
Number of Options and Shares Outstanding, Beginning balance (in shares) 50,119,362 60,307,462 74,336,244  
Number of Options and Shares, Granted (in shares) 0 0 0  
Number of Options and Shares, Exercised (in shares) (6,705,196) (8,109,300) (10,519,982)  
Number of Options and Shares, Forfeited (in shares) (355,800) (2,078,800) (3,508,800)  
Number of Options and Shares Outstanding, Ending balance (in shares) 43,058,366 50,119,362 60,307,462 74,336,244
Weighted Average Exercise Price        
Weighted average exercise price, Outstanding, beginning balance (in USD per share) $ 0.1 $ 0.1 $ 0.1  
Weighted average exercise price, Granted (in USD per share) 0 0 0  
Weighted average exercise price, Exercised (in USD per share) 0.1 0.1 0.1  
Weighted average exercise price, Forfeited (in USD per share) 0.1 0.1 0.1  
Weighted average exercise price, Outstanding, ending balance (in USD per share) $ 0.1 $ 0.1 $ 0.1 $ 0.1
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures        
Weighted average remaining contractual life (in years) 4 years 3 days 4 years 9 months 21 days 4 years 4 months 28 days 5 years 6 months 21 days
Aggregate intrinsic value, Outstanding $ 360,183 $ 596,170 $ 1,122,594 $ 750,796
Number of Options Outstanding, Vested and expected (in shares) 42,768,792 49,345,755    
Weighted average exercise price, Vested and expected (in USD per share) $ 0.1 $ 0.1    
Weighted average remaining contractual life , Vested and expected (in years) 4 years 4 years 9 months 14 days    
Aggregate intrinsic value, Vested and expected $ 357,761 $ 586,968    
Number of Options Outstanding, Exercisable (in shares) 39,274,166 41,387,162    
Weighted average exercise price, Exercisable (in USD per share) $ 0.1 $ 0.1    
Weighted average remaining contractual life , Exercisable (in years) 3 years 10 months 17 days 4 years 6 months 3 days    
Aggregate intrinsic value, Exercisable $ 328,528 $ 492,300    
2021 Share Incentive Plan        
Number of Options        
Number of Options and Shares Outstanding, Beginning balance (in shares) 108,557,400 108,557,400 108,557,400  
Number of Options and Shares, Granted (in shares) 0 0 0  
Number of Options and Shares Outstanding, Ending balance (in shares) 108,557,400 108,557,400 108,557,400 108,557,400
Weighted Average Exercise Price        
Weighted average exercise price, Outstanding, beginning balance (in USD per share) $ 14.63 $ 14.63 $ 14.63  
Weighted average exercise price, Granted (in USD per share) 0 0 0  
Weighted average exercise price, Outstanding, ending balance (in USD per share) $ 14.63 $ 14.63 $ 14.63 $ 14.63
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures        
Weighted average remaining contractual life (in years) 5 years 2 months 8 days 6 years 2 months 8 days 7 years 2 months 8 days 8 years 2 months 8 days