XML 73 R56.htm IDEA: XBRL DOCUMENT v3.19.1
Goodwill - Schedule of Goodwill Activity (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Goodwill      
Net balance at beginning of period $ 56,332 $ 54,409  
Additions 38,167    
Net foreign currency translation (2,658) 1,923  
Net balance at end of period 91,841 56,332 $ 54,409
Goodwill impairment $ 0 $ 0 $ 0