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Commitments and Contingencies - Narrative (Details)
 9 Months Ended
Jul. 12, 2022
item
Jul. 05, 2022
USD ($)
state
item
site
Nov. 02, 2021
item
Jul. 20, 2020
item
Sep. 30, 2022
USD ($)
item
site
Purchase Commitment for Charging Equipment [Member]          
Purchase order commitments outstanding | $         $ 10,700,000
Scenario Plan Date December 31, 2023 [Member]          
Percentage of chargers installation completed         72.00%
Second Two Year Period          
Number of chargers to be installed         48
Pilot Flying J Agreement [Member]          
Threshold number of stalls to be built, operated and maintained   2,000      
Number of sites where chargers are installed | site   500      
Number of states in which stalls will be installed | state   40      
Charger installation, maximum liquidated damages | $   $ 30,000      
Early termination rights, threshold charging stalls   1,000      
Delta Charger Supply Agreement and Purchase Order [Member]          
Minimum number of chargers committed to be purchased 1,000        
Number of stalls to be constructed 2,000        
Increased purchase commitment, number of chargers 1,100        
Nissan Agreement [Member]          
Number of chargers         850
Nissan Agreement 2.0 [Member]          
Joint marketing expense | $         $ 1,600,000
Charging credits | $         4,800,000
Future build schedule penalty amount, per site | $         $ 70,000
Future build schedule penalty site maximum number | site         48
Period of charging credit         12 months
Extension term of installation deadline under build schedule         12 months
Period for completion of charger installation milestone         2 years
Number of chargers under charger installation milestone         80
Nissan Agreement 2.0 [Member] | First Two Year Period          
Number of chargers to be installed         210
GM Agreement [Member]          
Number of chargers to be installed     3,250 2,750  
Number of chargers remaining to be installed         457
Number of additional stalls to be opened for public         607
Contract term       5 years  
Charger station operational percentage benchmark         93.00%
Agreement liquidation damage amount if counterparty terminates | $         $ 15,000,000.0
Number of chargers installation completed         2,840
Number Of Chargers Installation In Construction Pipeline Stages         3,191
GM Agreement [Member] | Scenario Plan Date December 31, 2025 [Member]          
Number of sites where chargers are installed         3,250