Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 6.I.Fact.4)
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
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-Paragraph 12
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- Definition

The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
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- Definition

Contract With Customer, Refund Payments

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- Definition

Income Taxes [Line Items]

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Income Taxes (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended		9 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Mar. 16, 2021	Jul. 31, 2021	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Line Items]
Effective income tax rate			3.40%	6.70%	3.20%	(1.50%)
Increase (Decrease) in Regulatory Assets and Liabilities	$ 160,655
Corporate federal income tax rate			21.00%	21.00%	21.00%	21.00%
Natural Gas Accounts Receivable [Member]
Income Taxes [Line Items]
Refunded payments					$ 5,000
Payment Assistance Program [Member]
Income Taxes [Line Items]
Refunded payments		$ 500