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Commitments and Contingencies	12 Months Ended
	Dec. 31, 2011
Commitments and Contingencies [Abstract]
Commitments and Contingencies	15. Commitments and Contingencies Refer to Note 5 for commitments in connection with acquisitions of mineral properties and Note 6 for commitments in connection with acquisitions of plant and equipment.

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The entire disclosure for commitments and contingencies.

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