Summary of Significant Accounting Policies - Useful Lives of Property, Plant and Equipment, Net (Details)	Dec. 31, 2025
Plant and Equipment [Member] \| Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	5 years
Plant and Equipment [Member] \| Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	30 years
Compressed Natural Gas/Renewable Natural Gas Fueling Stations [Member] \| Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	10 years
Compressed Natural Gas/Renewable Natural Gas Fueling Stations [Member] \| Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	20 years
Building [Member]
Property, Plant and Equipment [Line Items]
Useful lives (in years)	40 years
Equipment [Member] \| Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	5 years
Equipment [Member] \| Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	10 years
Vehicles
Property, Plant and Equipment [Line Items]
Useful lives (in years)	7 years
Office furniture and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	5 years
Office furniture and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Useful lives (in years)	7 years
Software and Software Development Costs [Member]
Property, Plant and Equipment [Line Items]
Useful lives (in years)	3 years
Property, Plant and Equipment, Other Types [Member]
Property, Plant and Equipment [Line Items]
Useful lives (in years)	7 years