Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.4.0.3
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Income Tax [Line Items]        
Income tax expense (benefit) $ 109,343 $ 138,929    
Effective income tax rate (as a percent) 39.00% 56.80%    
Increase in valuation allowance   $ 44,392    
Valuation allowance $ 47,773     $ 49,095
Forecast        
Income Tax [Line Items]        
Effective income tax rate (as a percent)     37.90%