XML 80 R65.htm IDEA: XBRL DOCUMENT v3.10.0.1
Goodwill and Intangible Assets - Change in Goodwill (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Goodwill [Roll Forward]      
Beginning of year $ 53,777 $ 40,231 $ 29,917
Acquired goodwill 0 13,546 10,314
Impairment 0 0 0
End of year $ 53,777 $ 53,777 $ 40,231