Derivative Instruments and Hedging Activities (Derivatives Fair Value By Balance Sheet Location) (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2014
|
Dec. 31, 2013
|
---|---|---|
Derivatives, Fair Value [Line Items] | ||
Asset Fair Value | $ 6,011 | $ 60 |
Liability Fair Value | (1,330) | (1,108) |
Net Derivative Fair Value | 4,681 | (1,048) |
Not Designated as Hedging Instrument [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Asset Fair Value | 6,011 | 60 |
Liability Fair Value | (1,330) | (1,108) |
Net Derivative Fair Value | 4,681 | (1,048) |
Current liabilities - Fair market value of derivatives [Member] | Not Designated as Hedging Instrument [Member] | Natural Gas [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Liability Fair Value | (47) | |
Net Derivative Fair Value | (47) | |
Current liabilities - Fair market value of derivatives [Member] | Not Designated as Hedging Instrument [Member] | Crude Oil [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Liability Fair Value | (418) | (1,036) |
Non-current liabilities - Other long-term liabilities [Member] | Not Designated as Hedging Instrument [Member] | Natural Gas [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Liability Fair Value | (41) | (72) |
Net Derivative Fair Value | (41) | (72) |
Non-current liabilities - Other long-term liabilities [Member] | Not Designated as Hedging Instrument [Member] | Crude Oil [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Liability Fair Value | (824) | |
Net Derivative Fair Value | (824) | |
Current assets - Fair market value of derivatives [Member] | Not Designated as Hedging Instrument [Member] | Natural Gas [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Asset Fair Value | 60 | |
Net Derivative Fair Value | 60 | |
Current assets - Fair market value of derivatives [Member] | Not Designated as Hedging Instrument [Member] | Crude Oil [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Asset Fair Value | 4,842 | |
Non-current assets - Other long-term assets [Member] | Not Designated as Hedging Instrument [Member] | Crude Oil [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Asset Fair Value | 1,169 | |
Net Derivative Fair Value | 1,169 | |
Balance Sheet Current [Member] | Not Designated as Hedging Instrument [Member] | Crude Oil [Member]
|
||
Derivatives, Fair Value [Line Items] | ||
Net Derivative Fair Value | $ 4,424 | $ (1,036) |