v3.26.1
SHARE-BASED COMPENSATION - Fair Value Of Share Options (Details) - $ / shares
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Assumptions used to estimate the fair value    
Risk-free interest rate, minimum 4.21% 4.24%
Risk-free interest rate, maximum 4.50% 4.49%
Dividend yield 0.00% 0.00%
Expected volatility range, minimum 76.00% 76.40%
Expected volatility range, maximum 78.60% 77.10%
Exercise multiple, minimum $ 2.2 $ 2.2
Exercise multiple, maximum $ 2.8 $ 2.8
Contractual life (in years) 10 years 10 years