XML 66 R56.htm IDEA: XBRL DOCUMENT v3.8.0.1
Property and Equipment Property and Equipment [Textual] (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Property, Plant and Equipment [Line Items]      
Depreciation $ 1,953 $ 1,693  
Property, Plant and Equipment, Net $ 48,145   $ 43,521