INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of inventories

	As of		As of
	March 31,		December 31,
	2013		2012
Stockpiled ore	$	30,218	$	33,130
In-process	11,422		7,571
Materials and supplies	48,610		43,548
Finished goods	2,600		5,963
Total	$	92,850	$	90,212