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SHARE-BASED COMPENSATION - Fair Value Of Share Options (Details) - $ / shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Assumptions used to estimate the fair value      
Risk free interest rate, minimum 1.92% 1.11% 0.68%
Risk free interest rate, maximum 4.25% 1.67% 0.83%
Dividend yield 0.00% 0.00% 0.00%
Expected volatility, minimum 74.20% 73.10% 72.30%
Expected volatility, maximum 74.90% 75.50% 73.40%
Exercise multiple, minimum $ 2.2 $ 2.2 $ 2.2
Exercise multiple, maximum $ 2.8 $ 2.8 $ 2.8
Contractual life (in years) 10 years 10 years 10 years