Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Breakdown of Inventories

The following table provides a breakdown of inventories at June 30, 2015 and December 31, 2014:

	June 30,		December 31,
	2015		2014
	(In thousands)
Finished goods	$	380,899	$	262,769
Raw materials	116,342		53,152
Work in process	50,131		—
Stores, supplies and other	54,653		42,440
Total inventories	$	602,025	$	358,361