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Asset Impairments (Tables)

12 Months Ended

Dec. 31, 2011

Asset Impairments [Abstract]

Net book value and fair values of the assets

		Fair Value				Net Book Value
		(In thousands)
Coal and other mineral rights, net		$	6,618			$	76,003
Intangible assets, net			—				43,855
Plant and equipment, net			2,600				7,775
Total		$	9,218			$	127,633

		Fair Value				Net Book Value
		(In thousands)
Coal and other mineral rights, net		$	20,035			$	56,769
Intangible assets, net			—				33,670
Plant and equipment, net			2,947				2,947
Total		$	22,982			$	93,386

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Schedule of carrying value and fair value of assets.

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