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Face amount or stated value per share of common stock.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Cash received on stock transaction after deduction of issuance costs.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

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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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COMMON STOCK - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 18, 2022	Mar. 22, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Feb. 23, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Par value of common stock (in dollars per share)				$ 1.25		$ 1.25
Shares of common stock outstanding (in shares)				122,464,793		122,464,793			117,340,493
Number of shares issued (in shares)						4,996,062
Interest expense, stock sale contract value adjustment				$ 0.2		$ 0.4
Stock sale contract liability, current				23.8		23.8			$ 23.8
Stock sale contract liability, noncurrent				$ 23.1		$ 23.1			$ 34.6
Incremental shares included in diluted EPS calculation (in shares)				3,408,112	1,843,819	2,570,267	1,486,997
Convertible
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Interest expense, coupon				$ 5.0	$ 5.1	$ 9.9	$ 7.8
2021 Series B Remarketable Junior Subordinated Notes due 2029
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Effective interest rate (as a percent)				2.10%		2.10%
NJ Boardwalk Holdings LLC
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Merger agreement, sale price per share (in dollars per share)								$ 36.00
Public Stock Offering
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Par value of common stock (in dollars per share)		$ 1.25
Number of shares offered (in shares)		10,250,000
Price per share (in dollars per share)		$ 22.25
Number of shares issued (in shares)			1,899,859
Private Placement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares issued (in shares)	4,996,062
Net proceeds from public offering, after underwriting discounts and commissions	$ 100.4
South Jersey Gas Company
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Par value of common stock (in dollars per share)				$ 2.50		$ 2.50
Shares of common stock outstanding (in shares)				2,339,139		2,339,139