Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Components of Inventories

Inventories reflected in the accompanying balance sheets consisted of the following:

	March 31,		December 31,
(In thousands)	2016		2015
Metals inventory
Raw ore	$	4,490	$	4,234
Concentrate and in-process	55,888		43,727
Finished goods	24,473		32,618
Total metals inventory	84,851		80,579
Materials and supplies	20,334		21,493
Total inventory	$	105,185	$	102,072