XML 64 R23.htm IDEA: XBRL DOCUMENT
v2.4.1.9

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 6 Months Ended
--- | ---
Mar. 31, 2015
Accounting Policies [Abstract] |
Schedule of Utility Inventory | The following table summarizes gas in storage, at average cost by company as of:
| March 31, 2015 | September 30, 2014
($ in thousands) | Gas in Storage |  | Bcf | Gas in Storage |  | Bcf
NJRES |  | $ | 65,030 |  | 22.0 |  |  | $ | 191,250 |  | 56.5 |
NJNG |  | 6,372 |  | 1.5 |  |  | 86,266 |  | 21.3 |
Total |  | $ | 71,402 |  | 23.5 |  |  | $ | 277,516 |  | 77.8 |
Accounts Receivable by Subsidiary | Customer accounts receivable include outstanding billings from the following subsidiaries as of:
(Thousands) | March 31, 2015 |  | September 30, 2014
NJRES | $ | 171,563 |  | 52 | % |  | $ | 142,566 |  | 75 | %
NJNG (1) | 153,642 |  | 46 |  |  | 41,281 |  | 22 |
NJRCEV | 1,127 |  | — |  |  | 594 |  | — |
NJRHS and other | 5,046 |  | 2 |  |  | 5,529 |  | 3 |
Total | $ | 331,378 |  | 100 | % |  | $ | 189,970 |  | 100 | %
(1) | Does not include unbilled revenues of $42.9 million and $7.2 million as of March 31, 2015 and September 30, 2014, respectively.

X
- Definition Amounts due from customers for goods or services presented by subsidiary. + References No definition available. + Details
Name: | njr_AccountsReceivableBySubsidiaryTableTextBlock
Namespace Prefix: | njr_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration