XML 67 R49.htm IDEA: XBRL DOCUMENT v3.19.1
Inventories (Schedule Of Components Of Inventories) (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Inventory, Net [Abstract]    
Finished goods $ 25,100 $ 24,938
Work-in-process 17,192 15,648
Raw materials 39,046 33,741
Stores, supplies and other 19,056 19,483
Total $ 100,394 $ 93,810