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Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Property, Plant and Equipment [Line Items]      
Proceeds from grants $ 1.0 $ 1.9 $ 0.0
Grant proceeds 26.8 25.9  
Accumulated amortization of the grant proceeds 18.0 17.0  
Amortization expense relating to grant proceeds $ 1.1 $ 1.5 $ 1.4
LNG liquefaction plants | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 3 years    
LNG liquefaction plants | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 20 years    
Station equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 10 years    
LNG trailers | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 10 years    
Other equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 3 years    
Other equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 7 years