Acquisitions (Summary Of Fair Values Of The 2014 Acquisition Assets And Liabilities) (Details) (2014 Acquisition [Member], USD $) In Thousands, unless otherwise specified	Jan. 30, 2014
2014 Acquisition [Member]
Business Acquisition [Line Items]
Oil and gas properties	$ 35,668
Asset retirement obligation	(772)
Other current liabilities	(2,827)
Net assets (liabilities) acquired	$ 32,069

Business Acquisition, Purchase Price Allocation, Asset Retirement Obligation.

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- Definition

Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Oil And Gas Property

+ References

No definition available.

+ Details

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- Definition

Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

+ References

+ Details

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