Inventories

3 Months Ended

Mar. 31, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories:

The following table provides a breakdown of inventories at March 31, 2021 and December 31, 2020 (in thousands):

	March 31,		December 31,
	2021		2020
Finished goods	$	394,401	$	454,162
Raw materials and work in process(a)	216,150		219,896
Stores, supplies and other	75,228		76,179
Total	$	685,779	$	750,237

(a)Included $136.4 million and $129.6 million at March 31, 2021 and December 31, 2020, respectively, of work in process in our Lithium segment.