Income Taxes - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
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| Income Tax Expense (Benefit), Continuing Operations [Abstract] | |||||
| Income tax expense (benefit) | $ (44,134) | $ 5,273 | $ (147,708) | $ 11,921 | |
| Ceiling test write-down | $ 252,772 | $ 0 | $ 513,162 | $ 0 | $ 0 |
| Effective tax rate | 14.50% | 34.90% | 22.30% | 36.20% | |
| Federal statutory income tax rate | 35.00% | ||||
| Valuation allowance | $ 62,900 | $ 85,400 | |||
| Louisiana | |||||
| Income Tax Expense (Benefit), Continuing Operations [Abstract] | |||||
| Valuation allowance related to net operating losses | $ 4,300 | $ 4,300 | $ 4,300 | ||
| Minimum | |||||
| Income Tax Expense (Benefit), Continuing Operations [Abstract] | |||||
| Tax years under examination | 2010 | ||||
| Maximum | |||||
| Income Tax Expense (Benefit), Continuing Operations [Abstract] | |||||
| Tax years under examination | 2014 | ||||
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tax year being audited in the income tax examination, in CCYY format. No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards 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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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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