This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date.

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INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended		5 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Change in the investment in MSC
Investment in MSC, beginning of period				$ 273,948
Impairment of investment in MSC	(95,878)			(95,878)
Investment in MSC, end of period	176,282			176,282
MSC
Change in the investment in MSC
Investment in MSC, beginning of period				273,948
Fair value of investment in MSC from acquisition of Minera Andes						262,883
Income from equity investment	61	1,595	5,597	1,256		25,301
Amortization of fair value increments	(1,612)	(916)	(1,869)	(3,044)	(1,869)	(4,466)
Dividend distribution						(9,770)
Impairment of investment in MSC	(95,900)			(95,878)
Investment in MSC, end of period	$ 176,282			$ 176,282		$ 273,948