v3.24.1.u1
INCOME TAX - Component of loss before income tax (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
INCOME TAX      
Loss before income tax $ (749,142) $ (724,271) $ (108,678)
Total current tax provision 1,113 292 1,637
Total deferred tax expense (126)   216
Actual income tax expense 1,113 292 1,853
The PRC, excluding Hong Kong      
INCOME TAX      
Loss before income tax (514,816) (652,302) (113,598)
Total current tax provision 727 73 852
Germany      
INCOME TAX      
Loss before income tax (5,370) 801 2,060
Total current tax provision 332 400 603
UK      
INCOME TAX      
Loss before income tax (166,174) 821 2,415
Total current tax provision   (187) 182
Total deferred tax expense     216
Netherlands      
INCOME TAX      
Loss before income tax (46,774) (47,710) (1,415)
Cayman Islands      
INCOME TAX      
Loss before income tax (4,383) (25,598) $ 1,860
Hong Kong      
INCOME TAX      
Loss before income tax (1,859) 78  
Others      
INCOME TAX      
Loss before income tax (9,766) (361)  
Total current tax provision $ 54 $ 6