XML 67 R47.htm IDEA: XBRL DOCUMENT v3.10.0.1
Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Inventories [Abstract]    
Finished goods $ 51,626 $ 46,729
Work-in-process 6,221 5,194
Raw materials and supplies 7,086 6,215
Inventories $ 64,933 $ 58,138