Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.5.0.2
Income Taxes - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Tax Disclosure [Abstract]        
Unrecognized tax benefits, interest or penalties recognized     $ 0 $ 0
Income tax expense (benefit) $ 2,900,000 $ 1,855,000 $ 3,935,000 $ 2,701,000
Effective income tax rate 36.10% 34.90% 34.40% 34.90%