Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Narrative) (Details)

v3.8.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Income Tax Disclosure [Abstract]        
Income Tax Expense (Benefit) $ (12,700) $ (12,716) $ (45,130) $ (45,742)
Effective Income Tax Rate, Continuing Operations 43.90% 38.70% 39.10% 37.80%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount $ 3,100      
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount 2,400      
Effective Income Tax Rate Reconciliation, Tax Settlement, Other, Amount $ 900