CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME (UNADITED) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
REVENUES
Molybdenum sales	$ 85.7	$ 72.6	$ 303.1	$ 291.8
Tolling, calcining and other	5.1	2.3	14.2	10.2
Total revenues	90.8	74.9	317.3	302.0
Cost of sales
Operating expenses	64.1	85.7	206.4	290.8
Depreciation, depletion and amortization	14.4	17.0	44.7	48.1
Total cost of sales	78.5	102.7	251.1	338.9
Selling and marketing	1.4	1.4	6.4	4.5
Accretion expense	0.6	0.5	2.0	1.6
General and administrative	5.1	7.0	17.7	22.1
Exploration	0.7	0.5	1.3	1.9
Total costs and expenses	86.3	112.1	278.5	369.0
OPERATING INCOME (LOSS)	4.5	(37.2)	38.8	(67.0)
Goodwill impairment	0	47.0	0	47.0
Start-up costs	10.2	0.2	10.3	5.3
OTHER (INCOME) AND EXPENSE
Change in fair value of common stock purchase warrants	0	0	0	(1.8)
(Gain) loss on foreign exchange	(24.2)	(21.3)	30.0	(20.0)
Interest and finance fees	(0.7)	(1.5)	(0.9)	(4.5)
Interest income	(0.4)	(0.5)	(0.9)	(0.9)
Other	0.2	0.1	0	(0.3)
Total other expense and (income)	13.5	(27.0)	(40.3)	(33.8)
(Loss) income before income and mining taxes	18.0	(64.2)	(1.5)	(100.8)
Income and mining tax expense (benefit)	4.2	(16.0)	3.0	(38.9)
NET INCOME (LOSS)	13.8	(48.2)	(4.5)	(61.9)
COMPREHENSIVE INCOME (LOSS)
Foreign currency translation	29.4	62.0	(44.5)	54.4
Total other comprehensive income (loss)	29.4	62.0	(44.5)	54.4
Total comprehensive (loss) income	$ 43.2	$ 13.8	$ (49.0)	$ (7.5)
NET (LOSS) INCOME PER SHARE
Basic (in dollars per share)	$ 0.08	$ (0.29)	$ (0.03)	$ (0.37)
Diluted (in dollars per share)	$ 0.06	$ (0.29)	$ (0.03)	$ (0.37)
Weighted-average number of common shares
Basic (in shares)	171.5	168.7	170.9	168.3
Diluted (in shares)	216.5	168.7	170.9	168.3