Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.5.0.2
Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Tax Expense (Benefit), Continuing Operations [Abstract]        
Income tax benefit $ (35,722) $ (44,134) $ (40,604) $ (147,708)
Effective tax rate 22.80% 14.50% 11.50% 22.30%
Federal statutory income tax rate     35.00%  
Valuation allowance $ 22,300 $ 62,900 $ 82,200 $ 85,400
Current income tax receivables 5,599   5,599  
Non-current income tax receivables $ 52,097   $ 52,097  
Minimum        
Income Tax Expense (Benefit), Continuing Operations [Abstract]        
Tax years under examination     2012  
Maximum        
Income Tax Expense (Benefit), Continuing Operations [Abstract]        
Tax years under examination     2015