Derivative Instruments and Hedging Activities (Derivatives Designated as Hedging Instruments/ Derivatives Not Designated as Hedging Instruments) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Derivative Instruments, Gain (Loss) [Line Items] | |||
Unrealized loss, net | $ 1,683 | $ 0 | $ 0 |
Total gain on derivative instruments, net | 1,717 | 0 | 0 |
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]
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Derivative Instruments, Gain (Loss) [Line Items] | |||
Amount of Gain (Loss) Reclassified from OCI into Income | 1,420 | (375) | 632 |
Amount of Gain Recognized in Income | 0 | 0 | 0 |
Commodity Contract [Member] | Not Designated as Hedging Instrument [Member]
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Derivative Instruments, Gain (Loss) [Line Items] | |||
Total gain on derivative instruments, net | 1,717 | 0 | 0 |
Commodity Contract [Member] | Natural gas [Member] | Not Designated as Hedging Instrument [Member]
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Derivative Instruments, Gain (Loss) [Line Items] | |||
Realized gain, net | 34 | 0 | 0 |
Unrealized loss, net | (241) | 0 | 0 |
Total gain on derivative instruments, net | (207) | 0 | 0 |
Commodity Contract [Member] | Crude Oil [Member] | Not Designated as Hedging Instrument [Member]
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Derivative Instruments, Gain (Loss) [Line Items] | |||
Realized gain, net | 0 | 0 | 0 |
Unrealized loss, net | 1,924 | 0 | 0 |
Total gain on derivative instruments, net | $ 1,924 | $ 0 | $ 0 |
X | ||||||||||
- Definition
Net Increase or Decrease in the fair value of the derivative or group of derivatives included in earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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X | ||||||||||
- Definition
The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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