Long-term Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
High yield notes	$ 315.0	$ 315.0
Unamortized debt issuance costs	(1.0)	(1.0)
Debt discount	(3.8)	(4.0)
Finance leases	12.4	11.6
Total debt and finance leases	322.6	321.6
Less: current maturities	(2.7)	(2.6)
Long-term debt and finance leases, net	$ 319.9	$ 319.0

Debt instrument high yield notes.

No definition available.

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- Definition

Amount of short-term and long-term debt and lease obligation.

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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.

+ References

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Amount, after accumulated amortization, of debt discount.

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- Definition

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

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Amount of long-term debt and lease obligation, classified as noncurrent.

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Amount of long-term debt and lease obligation, classified as current.

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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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