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Investments	9 Months Ended
Investments	Sep. 30, 2013
Equity Method Investments and Joint Ventures [Abstract]
Investments	Investments: The carrying value of our unconsolidated investment in Stannica LLC, a variable interest entity for which we are not the primary beneficiary, was $5.5 million and $6.6 million at September 30, 2013 and December 31, 2012, respectively. Our maximum exposure to loss in connection with our continuing involvement with Stannica LLC is limited to our investment carrying value. Additionally, during the nine-month period ended September 30, 2012, we and our joint venture partner each advanced $22.5 million to our 50%-owned joint venture, SOCC, pursuant to a long-term loan arrangement.

The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.

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