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STOCK-BASED COMPENSATION - Activities of RSUs (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Shares      
Beginning outstanding (in shares) 347 417  
Awarded (in shares) 10 304  
Released (in shares) (33) (262)  
Forfeited (in shares) (131) (112)  
Ending outstanding (in shares) 193 347  
Weighted Average Grant Date Fair Value      
Beginning outstanding (in dollars per share) $ 43.05 $ 139.50  
Awarded (in dollars per share) 3.80 31.80  
Released (in dollars per share) 44.23 143.25  
Forfeited (in dollars per share) 29.63 137.85  
Ending outstanding (in dollars per share) $ 50.09 43.05  
Aggregate Intrinsic Value      
Ending outstanding $ 231,308   $ 313,665
RSU      
Aggregate Intrinsic Value      
Share price   $ 1.20