v3.26.1
DEBT AND OFF-BALANCE SHEET ARRANGEMENTS - Narrative (Details)
$ in Thousands
1 Months Ended 3 Months Ended 24 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
tranche
instrument
Mar. 06, 2026
USD ($)
Dec. 31, 2024
USD ($)
Debt Instrument [Line Items]          
Principal amount $ 189,752 $ 189,752 $ 175,600    
Unamortized debt issuance costs 3,116 3,116 2,763    
Surety bonds          
Debt Instrument [Line Items]          
Off-balance sheet liability 59,800 59,800 $ 57,500    
Promissory notes | XRC Facility          
Debt Instrument [Line Items]          
Number of promissory notes issued | instrument     3    
Number of tranches issued | tranche     3    
Principal amount 145,600 145,600 $ 145,600    
Unamortized debt issuance costs 2,600 2,600 2,800    
Debt, estimated fair value 143,700 143,700 140,700    
Line of credit | Mercuria Credit Facility          
Debt Instrument [Line Items]          
Principal amount 30,000 30,000 30,000    
Debt, estimated fair value 30,000 30,000 30,000    
Credit agreement amount outstanding 30,000 30,000 30,000    
Debt issuance costs incurred, recorded in long-term assets         $ 3,500
Off-balance sheet liability 35,500 35,500 35,500    
Line of credit | Project Granite Facility          
Debt Instrument [Line Items]          
Principal amount 14,152 14,152 $ 0    
Debt, estimated fair value 14,200 14,200      
Aggregate commitments $ 421,400 $ 421,400      
Commitment fee percentage on unutilized portions   30.00%      
Line of credit | Project Granite Facility | Construction loan          
Debt Instrument [Line Items]          
Principal amount       $ 14,200  
Credit agreement amount outstanding       13,700  
SOFR margin rate   3.00%      
SOFR floor rate 0.00% 0.00%      
Debt issuance costs incurred, offset against debt       $ 500  
Line of credit | Project Granite Facility | Term loans | SOFR borrowings          
Debt Instrument [Line Items]          
SOFR margin rate 3.00%        
SOFR margin rate, annual increase 0.10%        
Line of credit | Project Granite Facility | Term loans | Base rate borrowings          
Debt Instrument [Line Items]          
SOFR margin rate, annual increase 0.10%        
Base rate margin, percentage lower than SOFR margin 1.00%