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Number Of Counties In Which Entity Operates

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Sale Of Stock, Proposed Price Per Share

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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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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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		3 Months Ended		9 Months Ended		12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Feb. 23, 2022 USD ($) $ / shares	Sep. 30, 2022 USD ($) county	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) county lawsuit	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Public Utilities, General Disclosures [Line Items]
Number of lawsuits filed \| lawsuit				8
Impairment Charges		$ 7,217,000	$ 0	$ 9,114,000	$ 0
Valuation allowance		39,300,000		39,300,000		$ 22,500,000
Reserve from prior period tax positions						$ 13,900,000
Income tax credits			2,300,000	11,900,000	2,700,000
State and Local Jurisdiction
Public Utilities, General Disclosures [Line Items]
Valuation allowance		$ 16,800,000		$ 16,800,000
Domestic Tax Authority
Public Utilities, General Disclosures [Line Items]
Valuation allowance			14,200,000		14,200,000
New Jersey Division of Taxation
Public Utilities, General Disclosures [Line Items]
Energy and Other Taxes			11,000,000
NJ Boardwalk Holdings LLC
Public Utilities, General Disclosures [Line Items]
Merger agreement, sale price per share (in dollars per share) \| $ / shares	$ 36.00
Merger agreement, termination period	12 months
Merger agreement, contingent termination fee, payable	$ 140,000,000
Merger agreement, contingent termination fee, receivable	$ 255,000,000
ETG Utility Operations
Public Utilities, General Disclosures [Line Items]
Number of counties in which entity operates \| county		7		7
Impairment Charges		$ 7,200,000		$ 7,200,000
South Jersey Gas Company
Public Utilities, General Disclosures [Line Items]
Number of counties in which entity operates \| county		7		7
Impairment Charges		$ 0	$ 0	$ 1,897,000	$ 0
Marina Energy LLC \| Annadale \| Annadale
Public Utilities, General Disclosures [Line Items]
Ownership by parent (as a percent)		93.00%		93.00%
Marina Energy LLC \| Annadale \| Bronx Midco LLC
Public Utilities, General Disclosures [Line Items]
Ownership by parent (as a percent)		92.00%		92.00%
Marina Energy LLC \| Solar Energy Projects Acquisition \| Annadale \| Bronx Midco LLC
Public Utilities, General Disclosures [Line Items]
Ownership by parent (as a percent)		90.00%		90.00%