Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Breakdown of Inventories

The following table provides a breakdown of inventories at September 30, 2016 and December 31, 2015 (in thousands):

	September 30,		December 31,
	2016		2015
Finished goods	$	335,694	$	264,025
Raw materials and work in process(a)	117,955		122,038
Stores, supplies and other	51,335		53,450
Total inventories(b)	$	504,984	$	439,513

(a) Included $45.9 million and $39.1 million at September 30, 2016 and December 31, 2015, respectively, of work in process related to the Lithium product category.

(b) As of September 30, 2016 and December 31, 2015, $74.5 million and $162.8 million, respectively, of inventories were classified as Assets held for sale in the condensed consolidated balance sheets. See Note 3, “Divestitures,” for additional information.