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Common Stock Options, Warrants And Changes In Capitalization (Details) (USD $)
In Thousands, except Share data, unless otherwise specified |
3个月结束 | 0月结束 | 0月结束 | ||||||
|---|---|---|---|---|---|---|---|---|---|
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3月. 31, 2013
|
3月. 31, 2012
|
2月. 15, 2013
Utica页岩[成员]
英亩
|
12月. 24, 2012
Utica页岩[成员]
英亩
|
12月. 19, 2012
Utica页岩[成员]
英亩
|
12月. 17, 2012
Utica页岩[成员]
英亩
|
2月. 15, 2013
普通股〔成员〕
公开发售〔成员〕
|
1月. 07, 2013
普通股〔成员〕
公开发售〔成员〕
|
12月. 24, 2012
普通股〔成员〕
公开发售〔成员〕
|
|
| Common Stock Options, Restricted Stock, Warrants And Changes In Capitalization [Line Items] | |||||||||
| Issuance of common stock in public offering (shares) | 8,912,500 | 11,750,000 | |||||||
| Stock option, portion available to underwriters (shares) | 1,650,000 | ||||||||
| Stock option, portion attributable to underwriters (shares) | 900,000 | 750,000 | |||||||
| 股价（每股美元） | $ 38.00 | $ 38.00 | |||||||
| Proceeds from issuance of common stock, net of offering costs | $ 357,640 | $ 325,800 | $ 460,700 | $ 325,800 | $ 460,700 | ||||
| Gas and oil 英亩age, undeveloped, net | 22,000 | 37,000 | 7,000 | 30,000 | |||||