v3.26.1
SHARE-BASED COMPENSATION - Stock option activity (Details) - Employee Stock Option - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Number of Options        
Outstanding as of beginning (in shares) 5,130,218 4,202,087 3,576,403  
Granted (in shares) 1,150,000 1,275,000 1,015,000  
Exercised (in shares) (561,081) (346,869) (347,316)  
Forfeited or expired (in shares) (259,261)   (42,000)  
Outstanding as of ending (in shares) 5,459,876 5,130,218 4,202,087 3,576,403
Vested and Expected to Vest Options as of December 31 (in shares) 5,021,286      
Exercisable Options as of December 31 (in shares) 2,286,217      
Weighted Average Exercise Price        
Outstanding as of beginning (in $/share) $ 16.6162 $ 6.0304 $ 3.0508  
Granted (in $/share) 62.6847 49.442 14.45  
Exercised (in $/share) 13.9818 7.9775 1.007  
Forfeited or expired (in $/share) 5.0433   6  
Outstanding as of ending (in $/share) 27.1428 16.6162 6.0304 $ 3.0508
Vested and Expected to Vest Options as of December 31 (in $/share) 15.3838      
Exercisable Options as of December 31 (in $/share) 28.8146      
Weighted Average Grant Date Fair Value        
Outstanding as of beginning (in $/share) 7.1954 3.1048 2.2782  
Granted (in $/share) 24.2127 19.6808 5.8298  
Exercised (in $/share) 5.4451 3.1139 2.5695  
Forfeited or expired (in $/share) 2.4485   2.0797  
Outstanding as of ending (in $/share) 11.1722 $ 7.1954 $ 3.1048 $ 2.2782
Vested and Expected to Vest Options as of December 31 (in $/share) 6.4514      
Exercisable Options as of December 31 (in $/share) $ 10.4306      
Weighted Average Remaining Term (Years)        
Outstanding (in years) 7 years 3 months 7 years 2 months 1 day 8 years 2 months 12 days 8 years 5 months 4 days
Vested and Expected to Vest Options as of December 31 (in years) 6 years 2 months 8 days      
Exercisable Options as of December 31 (in years) 7 years 5 months 23 days      
Aggregate Intrinsic Value        
Outstanding $ 359,681 $ 273,358 $ 31,109 $ 10,473
Vested and Expected to Vest Options as of December 31, 2023 13,924      
Exercisable Options as of December 31 $ 16,282