Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2011

Discontinued Operations [Abstract]

Financial information included in the income from discontinued operations

	Three months ended September 30, 2010			Nine months ended September 30, 2010
Sales of metals	$	—		$	—
Depreciation and depletion		(112	)		(2,194	)
Care and maintenance expense		(472	)		(2,350	)
Other income and expense		333			(164	)
Income tax expense		—			(1,321	)
Loss on sale of discontinued assets		882			(2,095	)
Income (loss) from discontinued operations	$	631		$	(8,124	)