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Hedging Activities (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
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Sep. 30, 2011
financial_institution
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Dec. 31, 2012
financial_institution
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Dec. 31, 2011
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Jul. 31, 2012
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Feb. 29, 2012
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Dec. 31, 2010
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Feb. 28, 2010
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| 衍生工具与套期保值活动的一般讨论[摘要] | |||||||
| Number of financial institutions | 4 | 4 | |||||
| 预计将在未来12个月内从累计其他综合收益中重新分类 | $ 9,660 | ||||||
| Loss on fair value hedge ineffectiveness | 144 | ||||||
| Gain on fair value hedge ineffectiveness | $ 25 | ||||||
| Production barrels per day (bbls/day) | 4,000 | 2,000 | 3,000 | 2,000 | 2,300 | 3,000 | |
| Forward contract sale, price per barrel | 107.29 | 86.96 | 109.73 | 108.00 | 58.24 | 54.81 | |
| Delivered percentage of production under fixed price swaps | 46.00% | ||||||
| X | ||||||||||
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- Definition
Delivered percentage of production under fixed price swaps. No definition available.
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| X | ||||||||||
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- Definition
Number Of Financial Institutions No definition available.
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| X | ||||||||||
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- Definition
以非货币单位表示的衍生品名义总额. 例如，燃料油远期购买合同中指定的桶数. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
在报告日预计将在未来12个月内重新分类为收益的现有现金流套期损益估计净额. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
以非货币单位表示的衍生品合约名义金额的每桶价格. 例如，燃料油远期购买合同中规定的每桶价格. No definition available.
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| X | ||||||||||
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- Definition
反映公允价值套期无效金额的报告期内收益确认的收益. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
反映公允价值套期无效金额的报告期内收益确认的损失. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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