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DERIVATIVE INSTRUMENTS - BROKER MARGIN DEPOSITS (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Sep. 30, 2015
--- | --- | ---
Derivative [Line Items] |  |
Broker margin - Current assets | $ 34,156 | $ 12,990
Broker margin - Current (liabilities) | (12,798) | (4,103)
NJNG [Member] |  |
Derivative [Line Items] |  |
Broker margin - Current assets | 20,235 | 12,990
NJRES [Member] |  |
Derivative [Line Items] |  |
Broker margin - Current assets | 13,921 | 0
Broker margin - Current (liabilities) | $ (12,798) | $ (4,103)

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- Definition Amount of other payables due to broker-dealers or clearing organizations. + References No definition available. + Details
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- Details
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- Details
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