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INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE - Summary of Operating Results from MSC (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |  |  |
Income taxes recovery | $ 607 | $ 1,619 | $ 3,330 | $ 15,103 |
(Loss) income from investment in MSC, net of amortization | 4,693 | (1,641) | 13,789 | (3,964) |
MSC |  |  |  |  |
INVESTMENT IN MINERA SANTA CRUZ S.A. ("MSC") - SAN JOSE MINE |  |  |  |  |
Net sales | 72,116 | 45,357 | 182,769 | 141,106 |
Production costs applicable to sales | (49,345) | (41,767) | (125,904) | (119,940) |
Net (loss) income | $ 12,072 | $ (3,375) | $ 31,293 | $ (5,185) |
Ownership interest (as a percent) | 49.00% | 49.00% | 49.00% | 49.00% |
Net (loss) income | $ 5,916 | $ (1,654) | $ 15,334 | $ (2,541) | $ (2,859)
Amortization of fair value increments | (2,914) | (1,617) | (9,370) | (7,705) | (10,669)
Income taxes recovery | 1,691 | 1,630 | 7,825 | 6,282 | $ 15,942
(Loss) income from investment in MSC, net of amortization | $ 4,693 | $ (1,641) | $ 13,789 | $ (3,964) |

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