v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Income Tax [Line Items]        
Effective tax rate 42.82% 31.95% 42.06% 32.01%
Deferred tax liability charged on equity $ 200,000   $ 200,000  
Pro forma effective income tax rate       46.90%
Income tax expense   $ 79,000   $ 656,000