v3.26.1
ACQUISITIONS AND STRATEGIC PARTNERSHIPS - Narrative (Details)
€ in Millions
3 Months Ended
Feb. 20, 2026
USD ($)
Feb. 20, 2026
EUR (€)
Jan. 21, 2026
USD ($)
MW
Mar. 31, 2026
USD ($)
shares
Mar. 31, 2025
USD ($)
Feb. 26, 2026
Feb. 20, 2026
EUR (€)
Dec. 31, 2025
USD ($)
Business Combination [Line Items]                
Partnership agreement, maximum ownership percentage           50.00%    
Contingent consideration liability       $ 25,553,000       $ 13,758,000
Goodwill       90,487,000       $ 0
Stock-based compensation expense       $ 31,873,000 $ 49,115,000      
Performance-based restricted stock units                
Business Combination [Line Items]                
Granted (in shares) | shares       6,837,681        
Stock-based compensation expense       $ 14,752,000 $ 24,323,000      
Exaion                
Business Combination [Line Items]                
Total consideration $ 174,500,000 € 148.0            
Contingent consideration liability 11,800,000     11,800,000     € 10.0  
Goodwill 92,517,000           78.4  
Redeemable noncontrolling interest - Put Option $ 12,975,000           € 11.0  
Put option redemption percentage 1           1  
Put option trading window 3 months           3 months  
Business combination, noncontrolling interest $ 89,116,000              
Base noncontrolling interest 76,141,000              
Stock-based compensation expense       $ 0        
Potential future equity infusion 129,700,000 110.0            
Property and equipment 755,000              
Exaion | Newly Issued Shares                
Business Combination [Line Items]                
Issued shares 135,600,000 115.0            
Exaion | Existing Shares                
Business Combination [Line Items]                
Issued shares $ 38,900,000 € 33.0            
Exaion | Performance-based restricted stock units                
Business Combination [Line Items]                
Granted (in shares) | shares       0        
Mining Of The West, LLC                
Business Combination [Line Items]                
Total consideration     $ 25,200,000          
Goodwill     $ 0          
Megawatts of interconnect-approved capacity | MW     42          
Property and equipment     $ 25,200,000