XML 71 R57.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 Taxes [Abstract]        
Provision for income taxes $ 3,467 $ 3,809 $ 10,520 $ 13,569
Effective income tax rate 20.70% 32.10% 20.10% 34.20%