Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.2.0.727
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Income Tax Disclosure [Abstract]      
Effective income tax rate 23.50% 24.70%  
Decrease in NOL deferred tax asset     $ 0.7