XML 65 R53.htm IDEA: XBRL DOCUMENT v3.10.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]        
U.S. statutory rate     21.00% 35.00%
Effective tax rate 11.10% (37.80%) 5.50% (8.20%)
Unrecognized tax benefits that would have a favorable impact on effective tax rate $ 2,200   $ 2,200  
Provision for income taxes $ 24,871 $ 1,963 $ 36,250 $ 3,249