The amortization period of debt.

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The multiplier amount of annual carbon emission price.

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Basis points in debt instrument.

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Floor rate in a debt instrument.

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Percentage of prepayment fee on debt instrument.

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Term of interest only period after the closing date in a debt instrument.

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Term to acquire interest on Flip Point

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The trailing period for debt service coverage ratio.

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Debt service coverage ratio.

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Payment to fund Debt Service Reserve Accounts.

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Payment to fund operations and maintenance and module replacement reserve accounts.

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Term following commercial operations date and termination of the Amended and Restated PPA.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Debt - Derby Back Leverage Financing (Details) $ in Thousands				12 Months Ended
	Aug. 25, 2024	Apr. 25, 2024 USD ($)	Aug. 18, 2023 USD ($) multiplier	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)
Debt Instrument [Line Items]
Payments of debt issuance costs				$ 1,159	$ 3,469
Back Leverage Financing
Debt Instrument [Line Items]
Gross proceeds from debt		$ 13,000	$ 20,000
Payments of debt issuance costs		200	400
Net proceeds from debt		12,800	19,600
Payment to fund DSCR Reserve Accounts		900	1,700
Payment to fund O&M Reserve Accounts			6,500
Proceeds from debt, distributed to company		11,500	11,100
Legal fees		$ 200
Output shortfall payments			1,300
Unrestricted cash			$ 6,800
Trailing period for debt service coverage ratio		12 months	12 months
Term to acquire interest at flip point		90 days	90 days
Back Leverage Financing \| Minimum
Debt Instrument [Line Items]
Basis points		1.1
Debt service coverage ratio			1.10%
Back Leverage Financing \| Groton Senior Back Leverage Loan Facility
Debt Instrument [Line Items]
Debt Instrument, Amortization Period			10 years
Debt instrument term			7 years
Term of interest only period			84 months
Back Leverage Financing \| Groton Senior Back Leverage Loan Facility \| Prepayment on or prior to the second anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)			3.00%
Back Leverage Financing \| Groton Senior Back Leverage Loan Facility \| Prepayment after second anniversary of the closing date but on or prior to the fourth anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)			2.00%
Back Leverage Financing \| Groton Senior Back Leverage Loan Facility \| Prepayment after fourth anniversary of the closing date but on or prior to the seventh anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)			1.00%
Back Leverage Financing \| Groton Senior Back Leverage Loan Facility \| Minimum
Debt Instrument [Line Items]
Debt service coverage ratio			1.20%
Back Leverage Financing \| Derby Senior Back Leverage Loan Facility
Debt Instrument [Line Items]
Interest rate (as a percent)		7.25%
Debt instrument term		7 years
Back Leverage Financing \| Derby Senior Back Leverage Loan Facility \| Prepayment on or prior to the second anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)	2.00%
Back Leverage Financing \| Derby Senior Back Leverage Loan Facility \| Prepayment after second anniversary of the closing date but on or prior to the fourth anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)	3.00%
Back Leverage Financing \| Derby Senior Back Leverage Loan Facility \| Prepayment after fourth anniversary of the closing date but on or prior to the seventh anniversary
Debt Instrument [Line Items]
Prepayment fee (as percentage)	1.00%
Back Leverage Financing \| Derby Senior Back Leverage Loan Facility \| Minimum
Debt Instrument [Line Items]
Basis points		1.25
Back Leverage Financing \| Groton Subordinated Back Leverage Loan Facility
Debt Instrument [Line Items]
Basis points			2.75
Excess cashflow available to borrower (as a percent)			50.00%
Term following commercial operations date and termination of the Amended and Restated PPA			20 years
Back Leverage Financing \| Groton Subordinated Back Leverage Loan Facility \| Step Down Date
Debt Instrument [Line Items]
Interest rate (as a percent)			8.00%
Back Leverage Financing \| Groton Subordinated Back Leverage Loan Facility \| After the Step Down Date
Debt Instrument [Line Items]
Floor rate (as a percent)			5.00%
Back Leverage Financing \| Groton Subordinated Back Leverage Loan Facility \| Maximum \| After the Step Down Date
Debt Instrument [Line Items]
Interest rate (as a percent)			8.00%
Back Leverage Financing \| Liberty Lender
Debt Instrument [Line Items]
Payment to fund DSCR Reserve Accounts			$ 830
Payment to fund O&M Reserve Accounts		$ 600	$ 3,250
Interest rate (as a percent)			6.75%
Back Leverage Financing \| Liberty Lender \| Term Loan Facility
Debt Instrument [Line Items]
Loan provided by lender (as a percentage)		68.00%	50.00%
Back Leverage Financing \| Amalgamated Lender
Debt Instrument [Line Items]
Payment to fund DSCR Reserve Accounts			$ 830
Payment to fund O&M Reserve Accounts			$ 3,250
Annual carbon emissions price multiplier \| multiplier			12.66
Back Leverage Financing \| Amalgamated Lender \| Carbon Offset Event Continuing
Debt Instrument [Line Items]
Interest rate (as a percent)			7.32%
Back Leverage Financing \| Amalgamated Lender \| Carbon Offset Event Non Continuing
Debt Instrument [Line Items]
Interest rate (as a percent)			6.07%
Back Leverage Financing \| Amalgamated Lender \| Term Loan Facility
Debt Instrument [Line Items]
Loan provided by lender (as a percentage)			50.00%
Back Leverage Financing \| Groton Senior Back Leverage Loans
Debt Instrument [Line Items]
Payment to fund DSCR Reserve Accounts			$ 300
Back Leverage Financing \| Groton Senior Back Leverage Loans \| Term Loan Facility
Debt Instrument [Line Items]
Term loan facility			12,000
Back Leverage Financing \| Derby Senior Back Leverage Lenders
Debt Instrument [Line Items]
Payment to fund DSCR Reserve Accounts		$ 400
Back Leverage Financing \| Derby Senior Back Leverage Lenders \| Term Loan Facility
Debt Instrument [Line Items]
Term loan facility		9,500
Back Leverage Financing \| Groton Subordinated Back Leverage Lenders \| Term Loan Facility
Debt Instrument [Line Items]
Term loan facility			$ 8,000
Back Leverage Financing \| Derby Subordinated Back Leverage Lenders \| Term Loan Facility
Debt Instrument [Line Items]
Term loan facility		3,500
Connecticut Green Bank Term Loan Agreement (Derby Senior Back Leverage Loan Facility)
Debt Instrument [Line Items]
Payment to fund O&M Reserve Accounts		$ 300
Connecticut Green Bank Loan (Derby Subordinated Back Leverage Loan Facility)
Debt Instrument [Line Items]
Loan provided by lender (as a percentage)		32.00%
Interest rate (as a percent)		8.00%