XML 58 R40.htm IDEA: XBRL DOCUMENT v3.7.0.1
Inventories (Schedule Of Components Of Inventories) (Details) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventory, Net [Abstract]    
Finished goods $ 21,639 $ 16,215
Work-in-process 9,883 8,590
Raw materials 27,499 23,733
Stores, supplies and other 17,452 17,531
Total $ 76,473 $ 66,069