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SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Number of Options    
Ending balance (in shares) 5,722,449  
Options to purchase common stock    
Number of Options    
Beginning balance (in shares) 3,683,839  
Granted (in shares) 2,545,500  
Exercised (in shares) (191,291)  
Forfeited or expired (in shares) (315,599)  
Ending balance (in shares) 5,722,449 3,683,839
Vested or expected to vest (in shares) 5,722,449  
Exercisable (in shares) 1,697,616  
Vested (in shares) 1,697,616  
Weighted-Average Exercise Price    
Beginning balance (in dollars per share) $ 16.94  
Granted (in dollars per share) 17.72  
Exercised (in dollars per share) 14.44  
Forfeited or expired (in dollars per share) 19.48  
Ending balance (in dollars per share) 17.23 $ 16.94
Vested or expected to vest (in dollars per share) 17.23  
Exercisable (in dollars per share) 16.95  
Vested (in dollars per share) $ 16.95  
Weighted average remaining contractual term and Aggregate intrinsic value    
Outstanding (Weighted Average Remaining Contractual Term) 8 years 7 months 20 days 8 years 11 months 8 days
Vested or expected to vest (Weighted Average Remaining Contractual Term) 8 years 7 months 20 days  
Exercisable (Weighted Average Remaining Contractual Term) 8 years 25 days  
Vested (Weighted Average Remaining Contractual Term) 8 years 25 days  
Outstanding (Aggregate Intrinsic Value) $ 68,977 $ 15,969
Vested or expected to vest (Aggregate Intrinsic Value) 68,977  
Exercisable (Aggregate Intrinsic Value) 21,258  
Vested (Aggregate Intrinsic Value) $ 21,258