Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0000915913 (http://www.sec.gov/CIK)

Inventory Disclosure [Abstract]	Period [Axis]
	2016-01-01 - 2016-12-31
Inventory Disclosure [Abstract]
Breakdown of Inventories	The following table provides a breakdown of inventories at December 31, 2016 and 2015 (in thousands):   December 31,   2016   2015 Finished goods $ 289,102   $ 264,025 Raw materials and work in process(a) 109,706   122,038 Stores, supplies and other 51,455   53,450 Total inventories(b) $ 450,263   $ 439,513 (a) Included $47.1 million and $39.1 million at December 31, 2016 and 2015, respectively, of work in process related to the Lithium product category. (b) As of December 31, 2015, $162.8 million of Inventories were classified as Assets held for sale in the consolidated balance sheets. See Note 3, “Divestitures,” for additional information.