REGULATORY ASSETS & REGULATORY LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2020

Regulatory Assets and Liabilities Disclosure [Abstract]

Schedule of Regulatory Assets

The Utilities' Regulatory Assets consisted of the following items (in thousands):

	December 31, 2020
	SJG		ETG		Total SJI
Environmental Remediation Costs:
Expended - Net	$	157,340	$	5,196	$	162,536
Liability for Future Expenditures	101,243		91,837		193,080
Insurance Recovery Receivables	—		(6,807)		(6,807)
Deferred ARO Costs	42,365		25,453		67,818
Deferred Pension Costs - Unrecognized Prior Service Cost	—		33,898		33,898
Deferred Pension and Other Postretirement Benefit Costs	77,426		8,466		85,892
Deferred Gas Costs - Net	19,178		—		19,178
CIP Receivable	21,013		—		21,013
SBC Receivable (excluding RAC)	3,453		—		3,453
Deferred Interest Rate Contracts	9,938		—		9,938
EET/EEP	18,725		3,062		21,787
Pipeline Supplier Service Charges	434		—		434
Pipeline Integrity Cost	6,091		—		6,091
AFUDC - Equity Related Deferrals	11,822		—		11,822
WNC	—		7,444		7,444
Other Regulatory Assets	26,056		10,359		36,415
Total Regulatory Assets	$	495,084	$	178,908	$	673,992

	December 31, 2019
	SJG		ETG		ELK		Total SJI
Environmental Remediation Costs:
Expended - Net	$	156,279	$	16,955	$	—	$	173,234
Liability for Future Expenditures	131,262		101,083		—		232,345
Insurance Recovery Receivables	—		(20,423)		—		(20,423)
Deferred ARO Costs	36,515		18,108		—		54,623
Deferred Pension Costs - Unrecognized Prior Service Cost	—		37,378		—		37,378
Deferred Pension and Other Postretirement Benefit Costs	72,010		1,825		—		73,835
Deferred Gas Costs - Net	49,469		5,301		293		55,063
SBC Receivable (excluding RAC)	1,478		—		—		1,478
Deferred Interest Rate Contracts	7,856		—		—		7,856
EET/EEP	12,877		4,468		—		17,345
Pipeline Supplier Service Charges	525		—		—		525
Pipeline Integrity Cost	6,516		—		—		6,516
AFUDC - Equity Related Deferrals	10,712		—		—		10,712
WNC	—		—		231		231
Other Regulatory Assets	10,678		4,536		—		15,214
Total Regulatory Assets	$	496,177	$	169,231	$	524	$	665,932

Schedule of Regulatory Liabilities

The Utilities' Regulatory Liabilities consisted of the following items (in thousands):

	December 31, 2020
	SJG		ETG		Total SJI
Excess Plant Removal Costs	$	12,666	$	37,953	$	50,619
Excess Deferred Taxes	232,694		113,888		346,582
Deferred Gas Costs - Net	—		15,322		15,322
Amounts to be Refunded to Customers	—		6,969		6,969
Other Regulatory Liabilities	—		1,085		1,085
Total Regulatory Liabilities	$	245,360	$	175,217	$	420,577

	December 31, 2019
	SJG		ETG		ELK		Total SJI
Excess Plant Removal Costs	$	16,333	$	36,343	$	—	$	52,676
Excess Deferred Taxes	251,355		117,695		—		369,050
Deferred Gas Costs - Net	—		52		—		52
CIP Payable	6,794		—		—		6,794
WNC	—		2,684		—		2,684
Amounts to be Refunded to Customers	—		10,625		—		10,625
Other Regulatory Liabilities	—		1,037		—		1,037
Total Regulatory Liabilities	$	274,482	$	168,436	$	—	$	442,918