Condensed Consolidated Statements of Comprehensive (Loss)/Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ (37,864)	$ (25,957)	$ 72,650	$ 6,030
Other Comprehensive Income, Net of Tax:
Reclassification of Unrealized Gain on Derivatives - Other to Net Income, net of tax	8	9	25	25
Other Comprehensive Income - Net of Tax	8	9	25	25
Comprehensive (Loss) Income	(37,856)	(25,948)	72,675	6,055
Less: Comprehensive Income Attributable to Noncontrolling Interests	143	173	354	390
Comprehensive (Loss) Income Attributable to South Jersey Industries, Inc.	$ (37,999)	$ (26,121)	$ 72,321	$ 5,665