Financing Arrangements - 2030 Senior Notes -Additional Information (Details) - USD ($) |
Sep. 30, 2024 |
Dec. 31, 2023 |
Sep. 30, 2023 |
Jul. 31, 2023 |
May 19, 2021 |
May 10, 2021 |
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| Debt Instrument [Line Items] | ||||||
| Capitalized debt issuance costs | $ 8,100,000 | $ 8,300,000 | $ 4,000,000 | |||
| Senior Secured Notes Due 2030 | ||||||
| Debt Instrument [Line Items] | ||||||
| Debt instrument, aggregate principal amount | $ 600,000,000 | |||||
| Debt interest rate at period end | 6.50% | |||||
| Senior notes | $ 592,300,000 | $ 592,400,000 | ||||
| Senior Secured Notes Due 2030 | Senior Notes | ||||||
| Debt Instrument [Line Items] | ||||||
| Debt interest rate at period end | 6.50% | 6.50% | 6.50% | |||
| Unamortized debt issuance costs | $ 6,900,000 | |||||
| Senior notes | $ 593,100,000 |
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. No definition available.
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