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Income Taxes (Narrative) (Details) (USD $)
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12 Months Ended | 12 Months Ended | |||||
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Dec. 31, 2013
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Dec. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2013
Diamondback [Member]
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Dec. 31, 2012
Diamondback [Member]
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Dec. 31, 2013
Federal [Member]
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Dec. 31, 2013
Louisiana [Member]
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| Operating Loss Carryforwards [Line Items] | |||||||
| Net operating loss carryforward | $ 4,200,000 | $ 84,800,000 | |||||
| Alternative minimum tax credits | 7,968,000 | 1,000,000 | 1,643,000 | ||||
| Foreign tax credit carryforwards | 2,074,000 | 0 | 2,074,000 | ||||
| Valuation allowance of deferred tax assets | 4,743,000 | 12,347,000 | 4,629,000 | ||||
| Taxable gain on contribution | 61,900,000 | ||||||
| Change in deferred tax asset valuation | 0 | (42,087,000) | (9,792,000) | ||||
| Deferred tax expense | 35,700,000 | 25,600,000 | |||||
| Gain from sale of equity investment | 120,000,000 | ||||||
| Current tax expense | $ 13,200,000 | ||||||
| X | ||||||||||
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- Definition
Taxable Gain On Contribution Of Oil And Gas Properties No definition available.
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| X | ||||||||||
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- Definition
Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The difference between the carrying value and the sale price of equity securities, not separately or otherwise categorized as trading or available-for-sale. This element includes investments in which the entity holds a small ownership stake (generally, less than 20% of the shares outstanding) and cannot exert significant influence. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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