XML 28 R31.htm IDEA: XBRL DOCUMENT v3.2.0.727
Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Inventory [Line Items]    
Raw materials and supplies $ 86,140 $ 94,437
Work in process 42,293 35,631
Finished goods 103,122 85,657
Inventories, net 231,555 215,725
Inventory Valuation Reserves $ 5,442 $ 5,233