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Income Taxes - Additional Information (Detail) (USD $)
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3 Months Ended | |
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Mar. 31, 2015
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Mar. 31, 2014
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| Income Tax Disclosure [Abstract] | ||
| Liability for unrecognized tax benefit, including related estimates of penalties and interest | $ 0us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease | $ 0us-gaap_UnrecognizedTaxBenefitsPeriodIncreaseDecrease |
| Income tax provision (benefit) | $ 47,000us-gaap_IncomeTaxExpenseBenefit | $ 24,000us-gaap_IncomeTaxExpenseBenefit |
| Projected annual effective tax rate | (0.90%)us-gaap_EffectiveIncomeTaxRateContinuingOperations | (0.50%)us-gaap_EffectiveIncomeTaxRateContinuingOperations |
| Statutory tax rate | 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate | 34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate |
| X | ||||||||||
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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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| X | ||||||||||
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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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- Details
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| X | ||||||||||
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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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| X | ||||||||||
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- Definition
The net amount of all increases and decreases in unrecognized tax benefits for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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