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Financing Obligation (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 31, 2021
Oct. 01, 2021
Long-term Purchase Commitment [Line Items]    
Property and equipment, net capitalized $ 9.4 $ 8.9
Financing obligation for property, plant and equipment 9.4 $ 8.9
Future fixed payment $ 16.8  
Power generator life term 15 years  
Implied discount rate 7.70%  
Purchase Commitment    
Long-term Purchase Commitment [Line Items]    
Fixed payments $ 27.2