v3.26.1
REDEEMABLE CONVERTIBLE PREFERRED SHARES - Activities (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Company's activities with respect to the redeemable convertible preferred shares      
Beginning balance   $ 383,530 $ 368,409
Beginning balance (in shares)   68,228,526 68,228,526
Accretion of redeemable convertible preferred shares   $ 2,979 $ 15,121
Conversion to ordinary shares (in shares)   (68,228,526)  
Conversion to ordinary shares   $ (386,509)  
Ending balance $ 368,409   $ 383,530
Ending balance (in shares) 68,228,526   68,228,526
Series Pre-A Preferred Shares      
Company's activities with respect to the redeemable convertible preferred shares      
Beginning balance   $ 184,509 $ 177,284
Beginning balance (in shares)   40,885,006 40,885,006
Accretion of redeemable convertible preferred shares   $ 1,385 $ 7,225
Conversion to ordinary shares (in shares)   (40,885,006)  
Conversion to ordinary shares   $ (185,894)  
Ending balance $ 177,284   $ 184,509
Ending balance (in shares) 40,885,006   40,885,006
Series A Redeemable Convertible Preferred Shares      
Company's activities with respect to the redeemable convertible preferred shares      
Beginning balance   $ 199,021 $ 191,125
Beginning balance (in shares)   27,343,520 27,343,520
Issuance of preferred shares (in shares) 27,343,520    
Accretion of redeemable convertible preferred shares   $ 1,594 $ 7,896
Conversion to ordinary shares (in shares)   (27,343,520)  
Conversion to ordinary shares   $ (200,615)  
Ending balance $ 191,125   $ 199,021
Ending balance (in shares) 27,343,520   27,343,520