Property Damage Reserve

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- Definition

Public Utilities, Deferred Amount, Reliability Reserve

+ References

No definition available.

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- Definition

Threshold Above Which Actual Damages Are Charged to the Reserve

+ References

No definition available.

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- Definition

Amount, after effects of reinsurance, of increase (decrease) in the liability for unpaid claims and claims adjustment expense.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480081/944-40-50-3

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- Definition

The net amount of all regulatory assets less all regulatory liabilities 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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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

+ Details

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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.

+ References

No definition available.

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REGULATORY MATTERS - MPC System Restoration Rider and Reliability Reserve Accounting Order (Details) - USD ($) $ in Thousands	1 Months Ended			12 Months Ended
	Jul. 31, 2024	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Apr. 11, 2024	Apr. 30, 2023	Mar. 31, 2023
Public Utilities, General Disclosures [Line Items]
Reliability reserve, amount deferred				$ 84,000	$ 63,000	$ 191,000
Net regulatory assets				7,041,000	6,523,000
Reliability reserves
Public Utilities, General Disclosures [Line Items]
Net regulatory assets				(188,000)	(179,000)
Major storms
Public Utilities, General Disclosures [Line Items]
Storm damage reserves accrual						239,000
Mississippi Power
Public Utilities, General Disclosures [Line Items]
Threshold above which actual damages are charged to the reserve (individually exceed)				50
Public utilities, approved rate increase (decrease), amount	$ (5,000)	$ (7,000)	$ 18,000				$ 9,000
Reliability reserve, amount deferred				21,000	11,000	25,000		$ 12,600	$ 11,700	$ 8,300
Net regulatory assets				59,000	90,000
Mississippi Power \| Reliability reserves
Public Utilities, General Disclosures [Line Items]
Net regulatory assets				(57,000)	(36,000)
Mississippi Power \| Retail electric revenues
Public Utilities, General Disclosures [Line Items]
Property damage reserve				52,000	45,000
Mississippi Power \| Major storms
Public Utilities, General Disclosures [Line Items]
Storm damage reserves accrual				$ 12,600	$ 11,700	$ 6,900