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INVESTMENT IN MINERA SANTA CRUZ S.A. (“MSC”) - SAN JOSÉ MINE - Assets and Liabilities associated with MSC (Details 4) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |
Current assets | $ 54,443 | $ 39,701 |
Total assets | 475,085 | 522,958 | $ 923,102
Current liabilities | 22,039 | 24,081 |
Total liabilities | 56,793 | 81,743 |
Impairment of investment in MSC | 11,777 | 21,162 | 95,878
Depreciation expense | 942 | 979 | $ 942
MSC |  |  |
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |
Current assets | 95,300 |  |
Total assets | 486,300 |  |
Current liabilities | 38,800 |  |
Total liabilities | 145,300 |  |
Impairment of investment in MSC | 11,777 | 21,162 |
Dividend received | 548 | $ 9,483 |
MSC | Current Period Values Excluding Fair Value Increments And Impairment Charge |  |  |
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |
Current assets | 91,100 |  |
Total assets | 282,500 |  |
Current liabilities | 44,400 |  |
Total liabilities | $ 79,500 |  |

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