v3.26.1
Borrowings - Schedule of Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2022
Sep. 30, 2021
Principal Outstanding        
Total borrowings $ 948,284 $ 939,476    
Current portion 0 372    
Total borrowings, non-current 948,284 939,104    
Carrying Value        
Total borrowings 617,118 813,266    
Current portion 0 372    
Total borrowings, non-current 617,118 812,894    
Notes payable - related party        
Principal Outstanding        
Total borrowings 201,382 194,419    
Carrying Value        
Total borrowings 163,283 150,427    
Delayed Draw Term Loan | Secured Debt        
Principal Outstanding        
Total borrowings 201,382 194,419    
Carrying Value        
Total borrowings 163,283 150,427    
Equipment financing facility        
Carrying Value        
Total borrowings $ 0 372    
Equipment financing facility | Line of Credit        
Debt Instrument        
Effective Interest Rate 16.20%   16.20% 14.30%
Principal Outstanding        
Total borrowings $ 0 372    
Carrying Value        
Total borrowings $ 0 372    
May 2025 Convertible Notes | Secured Debt        
Debt Instrument        
Effective Interest Rate 7.80%      
Principal Outstanding        
Total borrowings $ 50,000 50,000    
Carrying Value        
Total borrowings $ 48,217 48,044    
November 2025 Convertible Notes | Secured Debt        
Debt Instrument        
Effective Interest Rate 14.20%      
Principal Outstanding        
Total borrowings $ 600,000 600,000    
Carrying Value        
Total borrowings 317,895 530,096    
DOE Loan Facility        
Carrying Value        
Total borrowings $ 87,723 84,327    
DOE Loan Facility | Line of Credit        
Debt Instrument        
Effective Interest Rate 7.70%      
Principal Outstanding        
Total borrowings $ 96,902 94,685    
Carrying Value        
Total borrowings $ 87,723 $ 84,327    
DOE Loan Facility First Draw | Line of Credit        
Debt Instrument        
Effective Interest Rate 7.60%      
DOE Loan Facility Second Draw | Line of Credit        
Debt Instrument        
Effective Interest Rate 8.00%