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ACCUMULATED OTHER COMPREHENSIVE LOSS (AOCL) (Tables)
 12 Months Ended
Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Summary of changes in accumulated other comprehensive loss (AOCL) The following table summarizes the changes in SJI's AOCL for the years ended December 31, 2019, 2018, and 2017 (in thousands):
Postretirement Liability Adjustment (A)Unrealized Gain (Loss) on Derivatives-Other (B)Unrealized Gain (Loss) on Available-for-Sale SecuritiesOther Comprehensive Income (Loss) of Affiliated CompaniesTotal
Balance at January 1, 2017$(25,342) $(1,932) $(10) $(97) $(27,381) 
   Other comprehensive loss before reclassifications(10,920) —  —  —  (10,920) 
   Amounts reclassified from AOCL—  1,536  —  —  1,536  
   Net current period other comprehensive (loss) income(10,920) 1,536  —  —  (9,384) 
Balance at December 31, 2017(36,262) (396) (10) (97) (36,765) 
   Other comprehensive income before reclassifications10,636  —  —  —  10,636  
   Amounts reclassified from AOCL—  34  —  —  34  
   Net current period other comprehensive income10,636  34  —  —  10,670  
Balance at December 31, 2018(25,626) (362) (10) (97) (26,095) 
   Other comprehensive loss before reclassifications(6,498) —  —  —  (6,498) 
   Amounts reclassified from AOCL—  35  —  —  35  
   Net current period other comprehensive (loss) income(6,498) 35  —  —  (6,463) 
Balance at December 31, 2019$(32,124) $(327) $(10) $(97) $(32,558) 

(A) These amounts are net of tax of $2,539, $(3,731) and $4,106 for the years ended December 31, 2019, 2018 and 2017, respectively.
(B) The affected line item for these reclassifications from AOCL into the statements of consolidated income is Interest Charges. These amounts are net of tax of $(11), $(12) and $(988) for the years ended December 31, 2019, 2018 and 2017, respectively, for which the affected line item in the statements of consolidated income is Income Taxes.
Reclassification out of AOCL
South Jersey Gas Company  
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Summary of changes in accumulated other comprehensive loss (AOCL)
The following table summarizes the changes in SJG's AOCL for the years ended December 31, 2019, 2018, and 2017 (in thousands):

Postretirement Liability Adjustment (A)Unrealized Gain (Loss) on Derivatives-Other (B)Total
Balance at January 1, 2017$(14,417) $(517) $(14,934) 
   Other comprehensive loss before reclassifications(11,090) —  (11,090) 
   Amounts reclassified from AOCL—  27  27  
   Net current period other comprehensive (loss) income(11,090) 27  (11,063) 
Balance at December 31, 2017(25,507) (490) (25,997) 
   Other comprehensive income before reclassifications3,606  —  3,606  
   Amounts reclassified from AOCL—  34  34  
   Net current period other comprehensive income3,606  34  3,640  
Balance at December 31, 2018(21,901) (456) (22,357) 
   Other comprehensive loss before reclassifications(5,553) —  (5,553) 
   Amounts reclassified from AOCL—  35  35  
   Net current period other comprehensive loss (5,553) 35  (5,518) 
Balance at December 31, 2019$(27,454) $(421) $(27,875) 

(A) These amounts are net of tax of $2,241, $(1,354) and $4,164 for the years ended December 31, 2019, 2018 and 2017, respectively.
(B) The affected line item for these reclassifications from AOCL into the statements of income is Interest Charges. These amounts are net of tax of $(11), $(12) and $(19) for the years ended December 31, 2019, 2018 and 2017, respectively, for which the affected line item in the statements of income is Income Taxes.
Reclassification out of AOCL