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Income Taxes - Additional Information (Detail) (USD $)
6 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]    
Unrecognized tax benefits $ 0  
Accrued interest and penalties 0  
Federal statutory income tax rate 34.00%  
Net deferred tax assets $ 8,500,000 $ 10,800,000