Schedule of Outstanding Debt and Finance Leases (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Extinguishment of Debt [Line Items]
Finance lease liabilities, Book value	$ 18.1
Total long-term debt outstanding, Book value	363.2
Less: current portion of long-term debt, Book value		$ (18.8)
Long-term debt, excluding current portion, Book value	345.2	292.2
Debt and Finance Leases [Member]
Extinguishment of Debt [Line Items]
Senior secured notes, Principal	363.2	313.2
Senior secured notes, Unamortized deferred financing charge	(18.0)	(2.2)
Senior secured notes, Book value	345.2	311.0
Finance lease liabilities, Book value	18.1	23.0
Finance lease liabilities, Unamortized deferred financing charge
Total long-term debt outstanding, Principal	381.3	336.2
Total long-term debt outstanding, Unamortized deferred financing charge	(18.0)	(2.2)
Total long-term debt outstanding, Book value	363.3	334.0
Less: current portion of long-term debt, Principal	(4.3)	(23.2)
Less: current portion of long-term debt, Unamortized deferred financing charge
Less: current portion of long-term debt, Book value	(4.3)	(23.2)
Long-term debt, excluding current portion, Principal	377.0	313.0
Long-term debt, excluding current portion, Unamortized deferred financing charge	(18.0)	(2.2)
Long-term debt, excluding current portion, Book value	$ 359.0	$ 310.8

Finance lease liabilities unamortized deferred financing charge.

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Long term debt and capital lease obligations non current.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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