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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, RECEIVABLE BY SUBSIDIARY (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Sep. 30, 2012
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Billed | $ 240,281 |  | $ 170,543 |
Receivable by Susidiary Percentage | 100.00% |  | 100.00% |
Unbilled revenues | 7,429 |  | 7,017 |
NJRES [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Billed | 194,263 |  | 135,891 |
Receivable by Susidiary Percentage | 81.00% |  | 80.00% |
NJNG [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Billed | 43,045 | [1] | 33,093 | [1]
Receivable by Susidiary Percentage | 18.00% | [1] | 19.00% | [1]
NJRCEV [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Billed | 293 |  | 154 |
Receivable by Susidiary Percentage | 0.00% |  | 0.00% |
NJRHS and Other [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Billed | $ 2,680 |  | $ 1,405 |
Receivable by Susidiary Percentage | 1.00% |  | 1.00% |
[1] | Does not include unbilled revenues of $7.4 million and $7 million as of September 30, 2013 and 2012, respectively.

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- Definition Receivable by Subsidiary Percentage + References No definition available. + Details
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- Definition Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 3 -Subparagraph a, b -Article 5 + Details
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- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. + References No definition available. + Details
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