XML 52 R58.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Hedging Activities (Schedule Of Derivative Instruments) (Details) | Sep. 30, 2013
--- | ---
Fixed Price Swap, Period of October through December 2013 [Member] |
Derivative [Line Items] |
Daily Volume | 5,000
Weighted Average Price | 99.86
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, Period of October through December 2013 [Member] |
Derivative [Line Items] |
Daily Volume | 10,000
Weighted Average Price | 4.00
Fixed Price Swap, Period of January through December 2014 [Member] |
Derivative [Line Items] |
Daily Volume | 20,000
Weighted Average Price | 3.98
Fixed Price Swap, Period of January through March 2016 [Member] |
Derivative [Line Items] |
Daily Volume | 15,000
Weighted Average Price | 3.97
Fixed Price Swap, April 2016 [Member] |
Derivative [Line Items] |
Daily Volume | 5,000
Weighted Average Price | 3.90

X
- 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
Name: | invest_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
Name: | us-gaap_DerivativeSwapTypeAverageFixedPrice
Namespace Prefix: | us-gaap_
Data Type: | us-types:perUnitItemType
Balance Type: | na
Period Type: | instant