RISK MANAGEMENT (Interest Rate Swaps) (Details) (Interest Rate Swaps Covering October 2013 - July 2015 [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013
Interest Rate Swaps Covering October 2013 - July 2015 [Member]
Derivative Instruments Related to Oil and Gas Production [Line Items]
Notional Amount	$ 110,000
Floating Rate	1 Month LIBOR
Fixed Rate	3.315%

Nominal or face amount used to calculate payments on the derivative liability.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Notional Amount

-URI http://asc.fasb.org/extlink&oid=6519104

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant