v3.26.3
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Condensed Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Error Corrections and Prior Period Adjustments Restatement [Line Items]                
Government grants receivable [1] $ 17,308     $ 16,456        
Total current assets [1] 184,550     139,138        
Property, plant, and equipment, net [1] 520,369     468,993        
Investments in other entities [1] 213,400     206,723        
Other long-term assets [1] 36,268     27,942        
Total assets [1] 1,024,614     908,328        
Accrued expenses and other current liabilities [1] 65,439     64,005        
Total liabilities [1] 527,547     461,860        
Retained earnings (accumulated deficit) [1] 49,457     (52,596)        
Total stockholders' equity (deficit) attributable to the Company [1] 38,669     (64,219)        
Total stockholders' equity (deficit) 52,949 [1] $ (11,916) $ (32,051) (61,430) [1] $ (32,155) $ (51,429) $ 41,884 $ (156,237)
Total liabilities, redeemable preferred, redeemable non-controlling interests and stockholders' equity (deficit) [1] 1,024,614     908,328        
As Previously Reported                
Error Corrections and Prior Period Adjustments Restatement [Line Items]                
Government grants receivable 0     0        
Total current assets 167,242     122,682        
Property, plant, and equipment, net 545,979     495,634        
Investments in other entities 236,943     231,223        
Other long-term assets 53,576     44,398        
Total assets 1,073,767     959,469        
Accrued expenses and other current liabilities       63,857        
Total liabilities       461,712        
Retained earnings (accumulated deficit) 98,610     (1,307)        
Total stockholders' equity (deficit) attributable to the Company 87,822     (12,930)        
Total stockholders' equity (deficit) 102,102     (10,141)       $ (147,831)
Total liabilities, redeemable preferred, redeemable non-controlling interests and stockholders' equity (deficit) 1,073,767     959,469        
Effect of Change                
Error Corrections and Prior Period Adjustments Restatement [Line Items]                
Government grants receivable 17,308     16,456        
Total current assets 17,308     16,456        
Property, plant, and equipment, net (25,610)     (26,641)        
Investments in other entities (23,543)     (24,500)        
Other long-term assets (17,308)     (16,456)        
Total assets (49,153)     (51,141)        
Accrued expenses and other current liabilities       148        
Total liabilities       148        
Retained earnings (accumulated deficit) (49,153)     (51,289)        
Total stockholders' equity (deficit) attributable to the Company (49,153)     (51,289)        
Total stockholders' equity (deficit) (49,153)     (51,289)        
Total liabilities, redeemable preferred, redeemable non-controlling interests and stockholders' equity (deficit) $ (49,153)     $ (51,141)        
[1] Includes amounts related to consolidated VIEs, which are presented separately in the table below.