v3.26.1
Asset Impairment - Additional Information (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2026
USD ($)
Numbers
Mar. 31, 2025
USD ($)
Asset Impairment Charges [Line Items]    
Impairment loss $ 443 $ 2,047
Obsolete Assets [Member]    
Asset Impairment Charges [Line Items]    
Impairment loss   64
Renewable Electricity Generation Site [Member]    
Asset Impairment Charges [Line Items]    
Number of operating sites | Numbers 1  
Renewable Electricity Generation Site [Member] | Obsolete Assets [Member]    
Asset Impairment Charges [Line Items]    
Impairment loss $ 135 10
Renewable Natural Gas [Member] | Customer Contracts [Member]    
Asset Impairment Charges [Line Items]    
Impairment loss   54
Renewable Natural Gas [Member] | Obsolete Assets [Member]    
Asset Impairment Charges [Line Items]    
Impairment loss $ 308 $ 1,983
Renewable Natural Gas Generation Site [Member]    
Asset Impairment Charges [Line Items]    
Number of operating sites | Numbers 4