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Significant Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

Significant Acquisitions [Abstract]

Summary of the final allocation of the purchase price fair values of the assets acquired and liabilities

		Final Fair Value (In thousands)
Coal and other mineral rights		$	45,329
Intangible assets		$	1,863
Capital contribution		$	42,500
Non-controlling interests		$	4,692

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- Definition

Final allocation of purchase price and preliminary estimated fair values of assets acquired and liabilities.

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