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SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended 36 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2022
Jan. 01, 2022
Dec. 31, 2019
Significant Accounting Policies [Line Items]            
Notes receivable $ 2,196 $ 11,144   $ 2,196    
Interest income from the short-term investments $ 70 0 $ 37      
Estimated useful life term 50 years          
Recognized impairment loss of long lived assets $ 1,798 $ 2,443 $ 567      
Impairment long lived asset held for use statement of income or comprehensive income extensible enumeration not disclosed flag true true true      
Revenue recognized $ 1,151 $ 1,455 $ 582      
Amortized deferred subsidy 538 269 166      
Deferred subsidy income 542 324   542    
Deferred non current portion 3,066 2,286   3,066    
Operating lease right-of-use assets 16,368 0   16,368 $ 18,826  
Present value of operating lease liabilities 16,281     16,281 18,776  
Operating lease liabilities, current 1,934 0   1,934    
Total cash, cash equivalents and restricted cash $ 302,617 $ 536,109 $ 41,196 $ 302,617   $ 41,784
Net revenues percentage       10.00%    
Percentage of accounts receivable 10.00% 10.00%   10.00%    
Purchase percentage 18.00% 12.00% 12.00%      
Stockholders' equity, including portion attributable to noncontrolling interest $ (612,977) $ (686,698) $ 384,602 $ (612,977)   320,261
China, Yuan Renminbi            
Significant Accounting Policies [Line Items]            
Total cash, cash equivalents and restricted cash $ 98,021 102,782   98,021    
Minimum            
Significant Accounting Policies [Line Items]            
Warranty, term 1 year          
Maximum            
Significant Accounting Policies [Line Items]            
Warranty, term 8 years          
Accumulated deficit            
Significant Accounting Policies [Line Items]            
Stockholders' equity, including portion attributable to noncontrolling interest $ 791,165 $ 632,099 $ 397,996 $ 791,165   $ 320,760
Cumulative Effect, Period of Adoption, Adjustment            
Significant Accounting Policies [Line Items]            
Stockholders' equity, including portion attributable to noncontrolling interest         866  
Cumulative Effect, Period of Adoption, Adjustment | Accumulated deficit            
Significant Accounting Policies [Line Items]            
Stockholders' equity, including portion attributable to noncontrolling interest         $ 866