Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.10.0.1
Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Income Tax Disclosure [Abstract]          
Effective income tax rate 37.00% 239.90% 40.90% (304.20%)  
Tax Cuts And Jobs Act Of 2017, provisional income tax benefit         $ 64,343
Tax Cuts And Jobs Act Of 2017, repatriation of non-US earnings         43,000
Tax Cuts And Jobs Act Of 2017, benefit from undistributed foreign earnings         $ 25,196
Discrete tax benefit     $ 1,459