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COMMITMENTS AND CONTINGENCIES (Tables)
12 Months Ended
Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Environmental Loss Contingencies
The following table details the amounts expended and accrued for SJI's and SJG's environmental remediation during the last two years (in thousands):

SJI (includes SJG and all other consolidated subsidiaries):20212020
Beginning of Year$193,575 $232,885 
   Change in Accruals9,111 (22,198)
   Expenditures(36,605)(17,112)
End of Year$166,081 $193,575 
SJG:20212020
Beginning of Year$101,243 $131,262 
   Change in Accruals9,398 (15,273)
   Expenditures(18,677)(14,746)
End of Year$91,964 $101,243