v3.26.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Property and equipment net, Goodwill and Intangible assets, net (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 02, 2025
Aug. 22, 2023
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Impairment of intangible assets $ 16,946 $ 0 $ 0    
Goodwill 21,237        
Morning Star          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Goodwill   $ 0 $ 38,201   $ 38,201
Zhejiang Ordinary Smile Auto Sales Co Ltd          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Goodwill $ 21,237     $ 21,237  
Software          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful life of Intangible assets 10 years        
Trademark          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful life of Intangible assets 10 years        
Impairment of intangible assets $ 8,305        
Customer relationship          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful life of Intangible assets 10 years        
Technology          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Impairment of intangible assets $ 8,641        
Technology | Minimum          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful life of Intangible assets 4 years 3 months 18 days        
Technology | Maximum          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful life of Intangible assets 6 years 3 months 18 days        
Computer equipment and application software | Minimum          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful lives 2 years        
Computer equipment and application software | Maximum          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful lives 3 years        
Furniture and vehicles          
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES          
Estimated useful lives 5 years