Inventories (Tables)

9 Months Ended

Sep. 30, 2015

Inventories

Schedule of inventories

Inventory consisted of the following (in thousands):

	September 30,		December 31,
	2015		2014
Raw materials	$	559,996	$	764,883
Supplies	385,347		374,599
Work in progress	114,718		128,882
Finished goods	261,336		350,055
Total inventories	$	1,321,397	$	1,618,419