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Regulatory Matters: Winter Storm Uri (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Public Utilities, General Disclosures [Line Items]
Regulatory assets	$ 427.7	$ 480.1
Storm Costs
Public Utilities, General Disclosures [Line Items]
Regulatory assets	$ 109.5	199.6
Regulatory Asset, Amortization Period	1 year 7 months 6 days
Deferred gas cost adjustments
Public Utilities, General Disclosures [Line Items]
Regulatory assets	$ 14.5	$ 4.1

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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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- Definition

Amortization period for the recovery of regulatory asset, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 340
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478742/980-340-50-1

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