v3.26.1
DEBT AND OFF-BALANCE SHEET ARRANGEMENTS - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 24 Months Ended
Apr. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
instrument
tranche
Mar. 31, 2026
USD ($)
Dec. 31, 2024
USD ($)
Debt Instrument [Line Items]              
Total borrowings, current portion   $ 11,042 $ 11,042   $ 0    
Unamortized debt issuance costs   13,926 13,926   2,763    
Debt issuance costs incurred     20,855 $ 0      
Repayment of long-term debt     152,085 0      
Loss on extinguishment of debt     8,988 $ 0      
Surety bonds              
Debt Instrument [Line Items]              
Off-balance sheet liability   64,800 64,800   57,500    
Line of credit | Project Granite Facility              
Debt Instrument [Line Items]              
Aggregate commitments   421,400 421,400        
Total borrowings   212,300 212,300        
Total borrowings, current portion   11,042 11,042   0    
Unamortized debt issuance costs   13,900 13,900        
Debt issuance costs incurred   6,700          
Outstanding letters of credit   $ 17,900 $ 17,900        
Line of credit | Project Granite Facility | Construction loan              
Debt Instrument [Line Items]              
Margin rate     3.00%        
Floor rate   0.00% 0.00%        
Commitment fee, percentage or applicable margin   30.00% 30.00%        
Line of credit | Project Granite Facility | Term loans | SOFR borrowings              
Debt Instrument [Line Items]              
Margin rate     3.00%        
Margin rate, annual increase     0.10%        
Line of credit | Project Granite Facility | Term loans | Base rate borrowings              
Debt Instrument [Line Items]              
Margin rate     1.00%        
Line of credit | Construction loan              
Debt Instrument [Line Items]              
Aggregate commitments           $ 14,200  
Debt issuance costs incurred, recorded in long-term assets   $ 6,300 $ 6,300        
Line of credit | Mercuria Credit Facility              
Debt Instrument [Line Items]              
Debt issuance costs incurred, recorded in long-term assets             $ 3,500
Credit agreement amount outstanding   30,000 30,000   30,000    
Line of credit | Mercuria Credit Facility | Letter of credit              
Debt Instrument [Line Items]              
Credit agreement amount outstanding   $ 43,600 $ 43,600   35,500    
Promissory notes | XRC Facility              
Debt Instrument [Line Items]              
Unamortized debt issuance costs         2,800    
Credit agreement amount outstanding         $ 145,600    
Number of promissory notes issued | instrument         3    
Number of tranches issued | tranche         3    
Repayment of long-term debt $ 145,600            
Loss on extinguishment of debt 9,000            
Prepayment premium 6,500            
Loss on extinguishment of long-term debt $ 2,500