Segment Information (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Schedule of segment information

Year ended December 31, 2012	Resources			Chemicals and Oxides			Magnetic Materials and Alloys			Rare Metals			Eliminations(a)			Corporate and other(b)			Total Molycorp, Inc.
	(Revised)
Revenues:	(In thousands)
External	$	88,870		$	181,849		$	179,335		$	78,856		$	—					$	528,910
Intersegment	7,256			25,717			—			—			(32,973		)				—
Total revenues	$	96,126		$	207,566		$	179,335		$	78,856		$	(32,973	)				$	528,910
Depreciation, amortization and accretion	$	(13,991	)	$	(13,110	)	$	(19,737	)	$	(6,154	)	$	—		$	(133	)	$	(53,125	)
Operating (loss) income	$	(70,220	)	$	(191,059	)	$	(125,543	)	$	(20,408	)	$	24,803		$	(85,459	)	$	(467,886	)
(Loss) income before income taxes and equity earnings	$	(70,469	)	$	(190,094	)	$	(126,981	)	$	(19,918	)	$	24,803		$	(143,269	)	$	(525,928	)
Total assets at December 31, 2012	$	1,802,842		$	639,847		$	593,197		$	117,961		$	(187,567	)	$	26,255		$	2,992,535
Capital expenditures (c)	$	814,054		$	10,910		$	5,614		$	10,750		$	—		$	1,733		$	843,061

Year ended December 31, 2011	Resources			Chemicals and Oxides			Magnetic Materials and Alloys			Rare Metals			Eliminations(a)			Corporate and other(b)			Total Molycorp, Inc.
Revenues:	(In thousands)
External	$	253,563		$	40,216		$	56,772		$	46,280		$	—					$	396,831
Intersegment	55,155			13,902			—			—			(69,057		)				—
Total revenues	$	308,718		$	54,118		$	56,772		$	46,280		$	(69,057	)				$	396,831
Depreciation, amortization and accretion	$	(10,553	)	$	(1,958	)	$	(236	)	$	(2,449	)	$	—		$	(31	)	$	(15,227	)
Operating income (loss)	$	218,549		$	8,700		$	2,331		$	2,131		$	(27,443	)	$	(51,402	)	$	152,866
Income (loss) before income taxes	$	218,391		$	5,785		$	2,336		$	(634	)	$	(27,443	)	$	(51,525	)	$	146,910
Total assets at December 31, 2011	$	824,712		$	46,368		$	30,061		$	71,634		$	(143,730	)	$	426,080		$	1,255,125
Capital expenditures (c)	$	401,047		$	8,170		$	—		$	—		$	—		$	—		$	409,217

(a) The net elimination in operating results includes costs of sales eliminations of $57,776 and $41,614 for the year ended December 31, 2012 and 2011, respectively, which consist of intercompany gross profits as well as eliminations of lower of cost or market adjustments related to intercompany inventory. The total assets elimination is comprised primarily of intercompany investments and intercompany accounts receivable and profits in inventory.

(b) Corporate loss before income taxes and equity earnings includes business development costs, personnel and related costs, including stock-based compensation expense, accounting and legal fees, occupancy expense, information technology costs and interest expense. Other consists of nominal expenses incurred by the sales office in Tokyo, Japan. Total corporate assets is comprised primarily of cash and cash equivalents, the investment in the sales office in Tokyo and deferred tax assets.

(c) On an accrual basis excluding capitalized interest.

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas

The geographic distribution of the Company’s revenues based on customers' locations for the years ended December 31, 2012, 2011 and 2010, was as follows:

	Years Ended December 31,
(In thousands)	2012		2011		2010
Asia:
China	$	118,086	$	421	$	909
Japan	160,942		204,262		9,569
Thailand	7,674		—		—
Hong Kong	4,793		—		—
South Korea	3,828		—		—
Singapore	212		—		9
North America	104,769		128,544		24,070
Europe	117,907		56,760		596
Other	10,699		6,844		4
Total	$	528,910	$	396,831	$	35,157

Long-lived tangible assets by geographic location at December 31, 2012 and 2011 were as follows:

	At December 31,
(In thousands)	2012		2011
North America	$	1,391,690	$	500,612
Europe	75,495		60,619
China	52,914		—
Thailand	5,902		—
Other Asia	18,221		397
Other	82		—
Total	$	1,544,304	$	561,628