DERIVATIVE FINANCIAL INSTRUMENTS Additional Information (Details)	12 Months Ended
Dec. 31, 2012 MMBTU MBbls
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Portion of Anticipated Natural Gas Production Hedged (MMBtu)	68,853,000
Portion of Future Oil and Gas Production Being Hedged (MBbls)	3,754

The quantity of future oil and gas production being hedged.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 360

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 12.D.3(b))

-URI http://asc.fasb.org/extlink&oid=6601679&loc=d3e516453-122869

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 12

-Section D

-Paragraph b

-Subsection 3

Name:	us-gaap_PortionOfFutureOilAndGasProductionBeingHedged
Namespace Prefix:	us-gaap_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	instant