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REGULATION (Tables) | 12 Months Ended
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Sep. 30, 2018
Regulated Operations [Abstract] |
Schedule of Regulatory Assets | Regulatory assets and liabilities included on the Consolidated Balance Sheets as of September 30, are composed of the following:
(Thousands) | 2018 | 2017
Regulatory assets-current |  |
New Jersey Clean Energy Program | $ | 14,052 |  | $ | 14,202 |
Underrecovered gas costs | 4,137 |  | 9,910 |
Derivatives at fair value, net | 108 |  | 9,010 |
Conservation Incentive Program | — |  | 17,669 |
Total current regulatory assets | $ | 18,297 |  | $ | 50,791 |
Regulatory assets-noncurrent |  |
Environmental remediation costs: |  |
Expended, net of recoveries | $ | 33,017 |  | $ | 28,547 |
Liability for future expenditures | 130,800 |  | 149,000 |
Deferred income taxes | 17,225 |  | 21,795 |
SAVEGREEN | 8,636 |  | 16,302 |
Postemployment and other benefit costs | 136,716 |  | 141,433 |
Deferred storm damage costs | 10,858 |  | 13,030 |
Cost of removal | 22,339 |  | — |
Other noncurrent regulatory assets | 9,001 |  | 5,812 |
Total noncurrent regulatory assets | $ | 368,592 |  | $ | 375,919 |
Regulatory liability-current |  |
Conservation Incentive Program | $ | 6,994 |  | $ | — |
Derivatives at fair value, net | 1,191 |  | 78 |
Total current regulatory liabilities | $ | 8,185 |  | $ | 78 |
Regulatory liabilities-noncurrent |  |
Tax Act impact (1) | $ | 205,410 |  | $ | — |
Cost of removal | — |  | 7,902 |
New Jersey Clean Energy Program | 1,902 |  | 5,795 |
Other noncurrent regulatory liabilities | 1,827 |  | 810 |
Total noncurrent regulatory liabilities | $ | 209,139 |  | $ | 14,507 |
Schedule of Regulatory Liabilities | Regulatory assets and liabilities included on the Consolidated Balance Sheets as of September 30, are composed of the following:
(Thousands) | 2018 | 2017
Regulatory assets-current |  |
New Jersey Clean Energy Program | $ | 14,052 |  | $ | 14,202 |
Underrecovered gas costs | 4,137 |  | 9,910 |
Derivatives at fair value, net | 108 |  | 9,010 |
Conservation Incentive Program | — |  | 17,669 |
Total current regulatory assets | $ | 18,297 |  | $ | 50,791 |
Regulatory assets-noncurrent |  |
Environmental remediation costs: |  |
Expended, net of recoveries | $ | 33,017 |  | $ | 28,547 |
Liability for future expenditures | 130,800 |  | 149,000 |
Deferred income taxes | 17,225 |  | 21,795 |
SAVEGREEN | 8,636 |  | 16,302 |
Postemployment and other benefit costs | 136,716 |  | 141,433 |
Deferred storm damage costs | 10,858 |  | 13,030 |
Cost of removal | 22,339 |  | — |
Other noncurrent regulatory assets | 9,001 |  | 5,812 |
Total noncurrent regulatory assets | $ | 368,592 |  | $ | 375,919 |
Regulatory liability-current |  |
Conservation Incentive Program | $ | 6,994 |  | $ | — |
Derivatives at fair value, net | 1,191 |  | 78 |
Total current regulatory liabilities | $ | 8,185 |  | $ | 78 |
Regulatory liabilities-noncurrent |  |
Tax Act impact (1) | $ | 205,410 |  | $ | — |
Cost of removal | — |  | 7,902 |
New Jersey Clean Energy Program | 1,902 |  | 5,795 |
Other noncurrent regulatory liabilities | 1,827 |  | 810 |
Total noncurrent regulatory liabilities | $ | 209,139 |  | $ | 14,507 |

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