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SUMMARY OF PRINCIPAL ACCOUNTING POLICIES (Additional Information) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Allowance for credit losses      
Allowance for credit losses $ 18,072 $ 0 $ 0
Property, Plant and Equipment      
Interest expense capitalized 0 0 0
Inventories      
Inventory write-down 81,398 4,519 0
Prepaid land use rights      
Lease expense 3,300 2,400 1,200
Impairment of long-lived assets      
Long-lived asset impairment 175,600 0 0
Revenue recognition      
Contract with customer, liability 58,676 262,841  
Contract with customer, liability, revenue recognized 149,000 122,000  
Advances from customers expected to be recognized in revenue 58,700    
Government subsidies      
Unrestricted cash government subsidies 3,300 85,500 3,200
Proceeds from government grants related to fixed assets 0 0 0
Share-based compensation 68,081 149,758 314,973
Foreign currency translation      
Aggregate amount of cash and cash equivalents and restricted cash denominated in RMB 2,135,200 2,829,100  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01      
Revenue recognition      
Advances from customers expected to be recognized in revenue $ 37,200    
Expected timing of satisfaction, period 1 year    
Shipping and Handling      
Shipping and handling      
Cost of goods and services sold $ 11,400 $ 14,300 $ 15,900