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Commitments and Contingencies - Additional Information (Details) $ in Thousands		1 Months Ended		3 Months Ended	12 Months Ended		24 Months Ended
	Apr. 27, 2020 USD ($)	Dec. 31, 2018 project	Jul. 31, 2017 project	Oct. 31, 2021 USD ($)	Oct. 31, 2022 USD ($) project MW	Oct. 31, 2021 USD ($)	Oct. 31, 2021 USD ($)	Dec. 20, 2021 USD ($)
Commitments And Contingencies [Line Items]
Recorded unconditional purchase obligation					$ 67,100
Total number of projects | project					3
Accounts receivable outstanding						$ 11,200
Impairment charges					$ 22,100	2,800	$ 24,900
Long Term Project Assets				$ 223,277	$ 232,886	$ 223,277	$ 223,277
POSCO Energy Settlement Agreement
Commitments And Contingencies [Line Items]
Contingent liability								$ 1,800
Tulare Biomart Project
Commitments And Contingencies [Line Items]
Term for procuring fuel					20 years
LIPA project
Commitments And Contingencies [Line Items]
Term for procuring fuel					7 years
LIPA project | Maximum
Commitments And Contingencies [Line Items]
Term for procuring fuel					18 years
Toyota
Commitments And Contingencies [Line Items]
Long Term Project Assets					$ 21,900
Derby Project 14.0 Mega Watt
Commitments And Contingencies [Line Items]
Under construction power plant capacity | MW					14.0
Long Term Project Assets					$ 29,300
Derby Project 2.8 Mega Watt
Commitments And Contingencies [Line Items]
Under construction power plant capacity | MW					2.8
Long Term Project Assets					$ 300
Bridgeport
Commitments And Contingencies [Line Items]
Operating power plant capacity | MW					14.9
NEW YORK | Power Purchase Agreement
Commitments And Contingencies [Line Items]
Total number of projects | project		3	3
Impairment charges				$ 1,800
Posco Energy
Commitments And Contingencies [Line Items]
Loss contingency, damages sought	$ 3,300
Unspecified warranty claims	7,000
License termination	$ 110,000

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