Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.7.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Income Tax Disclosure [Abstract]          
Provision (benefit) for income taxes, as a percentage of income before income taxes 190.50% 34.70% 61.90% 43.10%  
Statutory U.S. federal income tax rate 35.00% 35.00% 35.00% 35.00%  
Liability related to unrecognized tax benefits $ 6,966   $ 6,966   $ 6,755