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Hedging Activities (Schedule Of Derivative Instruments) (Details) | Dec. 31, 2013
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Fixed Price Swap, Period of January through March 2014 [Member] |
Derivative [Line Items] |
Daily Volume | 4,000
Weighted Average Price | 104.75
Fixed Price Swap, Period of April through December 2014 [Member] |
Derivative [Line Items] |
Daily Volume | 2,000
Weighted Average Price | 101.50
Fixed Price Swap, January 2014 [Member] |
Derivative [Line Items] |
Daily Volume | 65,000
Weighted Average Price | 4.04
Fixed Price Swap, February Though December 2014 [Member] |
Derivative [Line Items] |
Daily Volume | 105,000
Weighted Average Price | 4.01
Fixed Price Swap, January through December 2015 [Member] |
Derivative [Line Items] |
Daily Volume | 125,000
Weighted Average Price | 4.03
Fixed Price Swap, Period of January through March 2016 [Member] |
Derivative [Line Items] |
Daily Volume | 105,000
Weighted Average Price | 4.04
Fixed Price Swap, April 2016 [Member] |
Derivative [Line Items] |
Daily Volume | 95,000
Weighted Average Price | 4.04

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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Details
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Period Type: | duration

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- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
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