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Commitments and Contingencies - Settlement Agreement (Details) - POSCO Energy Settlement Agreement
 12 Months Ended
Dec. 20, 2021
USD ($)
item
Oct. 31, 2022
USD ($)
item
Oct. 31, 2022
KRW (₩)
item
Dec. 23, 2021
USD ($)
Commitments And Contingencies [Line Items]        
Contingent liability $ 1,800,000      
Period within which an application should be filed 5 days      
Warrant period against module defect from the date of shipment. 18 months      
Warrant period against module defect from the date of installation 12 months      
Period for reimbursement due to shortfall or defect 7 years      
Percentage of maximum annual reimbursement obligation 7.50%      
Number of firm, non-cancelable orders | item 12      
Number of weeks within which the orders to be placed | item 2      
Price per module of the orders to be placed $ 3,000,000.0      
Period of right of first refusal on operation and maintenance services 24 months      
Number of balance of plant units | item 8      
Purchase price per unit of balance of plant units   $ 1,787,550 ₩ 2,550,000,000  
Amount of contractual Obligation       $ 24,000,000.0
Payments for contractual obligation   $ 24,000,000.0    
Settlement agreement orders on or before June 30, 2022        
Commitments And Contingencies [Line Items]        
Number of additional firm, non-cancelable orders to be placed | item 8      
Price per module of the orders to be placed $ 3,000,000.0      
Settlement agreement orders on or before December 31, 2022        
Commitments And Contingencies [Line Items]        
Number of additional firm, non-cancelable orders to be placed | item 14 20 20  
Price per module of the orders to be placed $ 3,000,000.0