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INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 11 Months Ended | 12 Months Ended | ||
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Jun. 30, 2013
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Dec. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Jan. 24, 2012
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| INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE | |||||
| Impairment | $ 95,878 | ||||
| Income on investment in MSC, net of amortization | 846 | 20,835 | |||
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MSC
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| INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE | |||||
| Interest acquired (as a percent) | 49.00% | 49.00% | |||
| Impairment | 95,900 | 95,878 | |||
| Sales percentage | 100.00% | 100.00% | |||
| Sales | 290,848 | 240,723 | |||
| Production costs applicable to sales | (155,915) | (190,281) | |||
| Income from operations before extraordinary items | 51,634 | 4,338 | |||
| Net income | 51,634 | 4,338 | |||
| Ownership interest (as a percent) | 49.00% | 49.00% | |||
| Net income on investment in MSC | 25,301 | 2,126 | 25,301 | ||
| Amortization of fair value increments | (4,466) | (1,280) | (4,466) | ||
| Income on investment in MSC, net of amortization | $ 20,835 | $ 846 | |||