|
RELATED PARTY TRANSACTIONS (Details) (USD $)
|
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2011
|
Jun. 30, 2010
|
Jun. 30, 2011
|
Jun. 30, 2010
|
|
| Related Party Transaction [Line Items] | ||||
| Demand Fees | $ 49,900,000 | $ 47,900,000 | $ 159,900,000 | $ 156,000,000 |
|
NJRES to Steckman Ridge Affiliate
|
||||
| Related Party Transaction [Line Items] | ||||
| Demand Fees Expense Recognized by NJRES Pertaining to Related Party Agreement | 354,000 | 494,000 | ||
| Due to Related Parties | 101,000 | 101,000 | ||
|
NJNG to NJRES Affilate [Member]
|
||||
| Related Party Transaction [Line Items] | ||||
| Natural Gas Sold at Cost Under Asset Management Agreement (MMcf) | 1,000 | |||
|
NJNG to Steckman RIdge Affiliate
|
||||
| Related Party Transaction [Line Items] | ||||
| Agreement for Natural Gas Storage Capacity Between NJNG and Affiliate (MMcf) | 3,000 | |||
| Approximate Annual Demand Fees Under Agreement from April 1 2010 to March 31 2020 | 9,300,000 | |||
| Demand Fees | 2,300,000 | 6,900,000 | ||
| Due to Related Parties | $ 775,000 | $ 775,000 | ||