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SEGMENTED INFORMATION (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012
SEGMENTED INFORMATION |  |  |  |  |
Gold and silver sales | $ 11,778 | $ 456 | $ 35,735 | $ 456 |
Income on investment in Minera Santa Cruz S.A. (net of amortization) | 2,040 | 11,240 | 252 | 14,968 |
Production costs applicable to sales | 7,907 | 119 | 26,778 | 119 |
Mine development and operating costs | 747 | 2,406 | 1,316 | 8,622 |
Mine construction costs |  | 4,671 |  | 13,306 |
Exploration costs | 2,575 | 6,708 | 22,064 | 28,565 |
Impairment of investment in Minera Santa Cruz S.A. |  |  | 95,878 |  |
Impairment of mineral property interests and property and equipment | 6,287 | 2,902 | 34,016 | 3,081 |
Loss (gain) on sale of assets | (50) | (1,135) | 6,741 | (1,265) |
Operating income (loss) | (8,845) | (10,625) | (166,866) | (56,608) |
Investment in Minera Santa Cruz S.A. | 177,080 |  | 177,080 |  | 273,948
Mineral property interests | 724,841 |  | 724,841 |  | 767,067
Total assets | 973,251 |  | 973,251 |  | 1,150,937
Argentina |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Income on investment in Minera Santa Cruz S.A. (net of amortization) | 2,040 | 11,240 | 252 | 14,968 |
Exploration costs | 631 | 1,539 | 14,110 | 11,369 |
Impairment of investment in Minera Santa Cruz S.A. |  |  | 95,878 |  |
Impairment of mineral property interests and property and equipment |  |  | 27,729 |  |
Loss (gain) on sale of assets | (10) |  | 316 |  |
Operating income (loss) | 1,131 | 9,129 | (139,297) | 1,440 |
Investment in Minera Santa Cruz S.A. | 177,080 |  | 177,080 |  | 273,948
Mineral property interests | 511,363 |  | 511,363 |  | 539,092
Total assets | 691,579 |  | 691,579 |  | 825,047
Mexico |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Gold and silver sales | 11,778 | 456 | 35,735 | 456 |
Production costs applicable to sales | 7,907 | 119 | 26,778 | 119 |
Mine development and operating costs | 747 | 2,406 | 1,316 | 8,622 |
Mine construction costs |  | 4,671 |  | 13,306 |
Exploration costs | 1,148 | 3,847 | 5,582 | 12,394 |
Operating income (loss) | 393 | (12,650) | (2,627) | (38,733) |
Mineral property interests | 12,093 |  | 12,093 |  | 12,707
Total assets | 51,272 |  | 51,272 |  | 47,359
United States |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Exploration costs | 634 | 999 | 2,084 | 3,905 |
Impairment of mineral property interests and property and equipment | 6,287 |  | 6,287 |  |
Loss (gain) on sale of assets | (40) |  | 6,428 |  |
Operating income (loss) | (8,499) | (4,234) | (17,102) | (7,864) |
Mineral property interests | 201,385 |  | 201,385 |  | 215,268
Total assets | 205,457 |  | 205,457 |  | 220,148
Corporate & Other |  |  |  |  |
SEGMENTED INFORMATION |  |  |  |  |
Exploration costs | 162 | 323 | 288 | 897 |
Loss (gain) on sale of assets |  |  | (3) |  |
Operating income (loss) | (1,870) | (2,870) | (7,840) | (11,451) |
Total assets | $ 24,943 |  | $ 24,943 |  | $ 58,383

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