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Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
6个月结束 | 12个月结束 |
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小君. 30, 2013
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12月. 31, 2012
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| Statement of Financial Position [Abstract] | ||
| 不包括摊销的石油和天然气资产的资本化成本 | $ 872,113 | $ 626,295 |
| Equity investments attributable to fair value option | $ 198,662 | $ 151,317 |
| Preferred stock, par value (usd per share) | $ 0.01 | $ 0.01 |
| Preferred stock, shares authorized (shares) | 5,000,000 | 5,000,000 |
| Preferred stock dividend rate | 12.00% | 12.00% |
| Temporary Equity, Shares Authorized (shares) | 30,000 | 30,000 |
| Preferred stock Series A, issued (shares) | 0 | 0 |
| Preferred stock Series A, outstanding (shares) | 0 | 0 |
| Common stock, par value (usd per share) | $ 0.01 | $ 0.01 |
| Common Stock, Shares Authorized (shares) | 100,000,000 | 100,000,000 |
| Common Stock, Shares, Issued (shares) | 77,547,606 | 67,527,386 |
| Common Stock, Shares, Outstanding (shares) | 77,547,606 | 67,527,386 |
| X | ||||||||||
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——定义
The sum of the capitalized costs incurred, as of the balance sheet date, 不包括购置成本在内的未经证实的资产, 勘探成本, 开发成本, 生产成本. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
一个实体的章程和章程允许发行的普通股的最大数量. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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——定义
已出售或授予股东的普通股总数（包括已发行的普通股）, 回购 and remain in the treasury). 这些股份代表公司股东和所有者投入的资本, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
该要素代表主体以公允价值确定的资产负债表断言的部分，无论该金额体育平台是作为单独标题列报还体育平台是作为插入式披露. 另外, 该要素可与财务报表脚注披露中要求的公允价值披露联系起来使用. 该要素可在同一份报告的资产负债表和披露中同时使用. 本项目表示截至资产负债表日的投资证券，其中可能包括有价证券, derivative financial instruments, and investments accounted for under the equity method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X |
| X | ||||||||||
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——定义
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
一个实体的章程和章程允许发行的不可赎回优先股（或完全由发行人选择可赎回的优先股）的最大数量. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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——定义
已发行给股东的不可赎回优先股（或完全由发行人选择可赎回的优先股）总数（包括已发行的相关优先股）, 回购, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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——定义
股东持有的所有不可赎回优先股（或按发行人的选择完全赎回的优先股）的总股数. Does not include preferred shares that have been 回购. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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——细节
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——定义
一个实体的章程和章程允许发行的被归类为临时股权的证券的最大数量. 临时股权体育平台是一种不受发行人控制的具有赎回特征的证券, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. 包括以固定或可确定的价格或在固定或可确定的日期赎回的任何类型的证券, is redeemable at the option of the holder, 或者具有不完全在发行人控制范围内的赎回条件. 如果兑换, 如果持有人行使将股票转换为另一种类型的股权的期权，发行人无法控制发行根据转换期权可能需要交付的最大数量的股票所需的行动或事件. If the security is a warrant or a rights issue, 如果发行人不能证明其在所有情况下都有能力在持有人行使期权后交付，则认股权证或配股将被视为临时股权. 包括由员工持股计划持有的有看跌期权的股票，以及只有在发行人的控制权发生变化时，持有人才能赎回的股票. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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