Consolidated Statements Of Operations And Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues
Mine production	$ 116,190	$ 139,733	$ 232,894	$ 261,713
PGM recycling	96,585	82,872	182,932	130,953
Total revenues	212,775	222,605	415,826	392,666
Costs of metals sold
Mine production	74,996	65,094	149,025	125,344
PGM recycling	93,149	79,552	177,264	124,706
Total costs of metals sold	168,145	144,646	326,289	250,050
Depletion, depreciation and amortization
Mine production	14,601	15,395	29,005	31,196
PGM recycling	261	265	529	527
Total depletion, depreciation and amortization	14,862	15,660	29,534	31,723
Total costs of revenues	183,007	160,306	355,823	281,773
Exploration	2,000	75	12,117	75
Marketing	3,650	2,800	5,988	3,653
Research and development	77	621	782	1,080
General and administrative	10,117	9,893	22,595	16,255
Abandonment of non-producing property	0	0	2,835	0
Loss/(Gain) on disposal of property, plant & equipment	297	(207)	292	(226)
Total costs and expenses	199,148	173,488	400,432	302,610
Operating income	13,627	49,117	15,394	90,056
Other income/(expense)
Other	577	4	585	12
Interest income	790	951	1,435	1,733
Interest expense	(1,153)	(1,637)	(2,868)	(3,272)
Foreign currency transaction gain	3,778	0	6,709	182
Income before income tax provision	17,619	48,435	21,255	88,711
Income tax benefit/(provision)	210	(5,737)	(987)	(9,821)
Net income	17,829	42,698	20,268	78,890
Net loss attributable to noncontrolling interest	(371)	0	(371)	0
Net income attributable to common stockholders	18,200	42,698	20,639	78,890
Other comprehensive income/(loss), net of tax
Net unrealized (losses)/gains on securities available for sale	(109)	86	199	(104)
Comprehensive income attributable to common stockholders	$ 18,091	$ 42,784	$ 20,838	$ 78,786
Weighted average common shares outstanding
Basic (in shares)	115,819	103,037	115,686	102,688
Diluted (in shares)	123,855	111,123	116,671	110,924
Basic earnings per share attributable to common stockholders	$ 0.16	$ 0.41	$ 0.18	$ 0.77
Diluted earnings per share attributable to common stockholders	$ 0.15	$ 0.39	$ 0.18	$ 0.73