Other, Net (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
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| Other, Net [Abstract] | ||||
| Accounts receivable | $ 1.6 | $ 1.5 | $ 6.3 | $ 3.5 |
| Gas storage and other inventories | 14.6 | 8.6 | 24.4 | 17.8 |
| Customer deposits and credits | 2.2 | (1.6) | 4.4 | (5.4) |
| Income Tax Examination, Penalties Expense | 0.0 | (8.1) | 0.0 | (9.2) |
| Other, net | 18.2 | 0.5 | 32.6 | 6.3 |
| Miscellaneous Non-Operating Income (Expense) | $ (0.2) | $ 0.1 | $ (2.5) | $ (0.4) |
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- Definition Miscellaneous Non-Operating Income (Expense) No definition available.
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- Definition Other, Net [Abstract] No definition available.
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- Definition Pension and Other Postretirement Non Service Cost No definition available.
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- Definition The amount of estimated penalties recognized in the period arising from income tax examinations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of interest income (expense) classified as nonoperating. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount capitalized of allowance for funds used during construction. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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