v3.26.1
Summary of Significant Accounting Policies - Revenue Recognition from Contracts with Customers And Project Development And Startup Costs Narrative (Details)
$ in Thousands
6 Months Ended 12 Months Ended
Dec. 31, 2022
subsidiary
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2020
Revenue from External Customer [Line Items]        
Total revenues   $ 348,975 $ 299,972  
Product warranty accrual, current   483 171  
Backlog   40,889    
Virtual pipeline costs   13,003 14,769  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01        
Revenue from External Customer [Line Items]        
Backlog   $ 34,994    
Expected to be recognized within the next   12 months    
Renewable Power        
Revenue from External Customer [Line Items]        
Number of wholly-owned subsidiaries | subsidiary 3      
Total revenues [1]   $ 32,768 44,677  
Environmental attributes | Renewable Power        
Revenue from External Customer [Line Items]        
Total revenues   6,467 17,484  
RNG fuel | Low Carbon Fueld Standard ("LCFS")        
Revenue from External Customer [Line Items]        
Agreement, term of contract       7 years
OCI Fuels B.V. ("OCI") | Environmental attributes | Renewable Power        
Revenue from External Customer [Line Items]        
Total revenues   $ 0 $ 16,286  
[1] Includes revenues from related parties of $6,822 and $6,912 for the years ended December 31, 2025 and 2024, respectively