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Mining Properties (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Mining Properties |  |
Operational mining properties: | $ 641,305 | $ 674,636
Accumulated depletion | (315,541) | (247,562)
Operational mining properties, net | 325,764 | 427,074
Mineral interest | 1,753,129 | 1,822,635
Accumulated depletion | (327,392) | (257,758)
Mineral interest, net | 1,425,737 | 1,564,877
Total mining properties | 1,751,501 | 1,991,951
Palmarejo [Member] |  |
Mining Properties |  |
Operational mining properties: | 151,845 | 155,722
Accumulated depletion | (110,143) | (82,037)
Operational mining properties, net | 41,702 | 73,685
Mineral interest | 1,146,572 | 1,658,389
Accumulated depletion | (300,187) | (235,795)
Mineral interest, net | 846,385 | 1,422,594
Total mining properties | 888,087 | 1,496,279
San Bartolome [Member] |  |
Mining Properties |  |
Operational mining properties: | 70,761 | 70,322
Accumulated depletion | (22,236) | (18,439)
Operational mining properties, net | 48,525 | 51,883
Mineral interest | 26,643 | 26,642
Accumulated depletion | (8,759) | (7,338)
Mineral interest, net | 17,884 | 19,304
Total mining properties | 66,409 | 71,187
Kensington [Member] |  |
Mining Properties |  |
Operational mining properties: | 268,351 | 333,619
Accumulated depletion | (80,032) | (46,649)
Operational mining properties, net | 188,319 | 286,970
Mineral interest | 0 | 0
Accumulated depletion | 0 | 0
Mineral interest, net | 0 | 0
Total mining properties | 188,319 | 286,970
Rochester [Member] |  |
Mining Properties |  |
Operational mining properties: | 150,348 | 114,973
Accumulated depletion | (103,130) | (100,437)
Operational mining properties, net | 47,218 | 14,536
Mineral interest | 0 | 0
Accumulated depletion | 0 | 0
Mineral interest, net | 0 | 0
Total mining properties | 47,218 | 14,536
Endeavor [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 | 0
Accumulated depletion | 0 | 0
Operational mining properties, net | 0 | 0
Mineral interest | 408,352 | 44,033
Accumulated depletion | 0 | (14,625)
Mineral interest, net | 408,352 | 29,408
Total mining properties | 408,352 | 29,408
Joaquin Project - Argentina [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 | 0
Accumulated depletion | 0 | 0
Operational mining properties, net | 0 | 0
Mineral interest | 93,429 | 93,571
Accumulated depletion | 0 | 0
Mineral interest, net | 93,429 | 93,571
Total mining properties | 93,429 | 93,571
Other Mining Properties [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 |
Accumulated depletion | 0 |
Operational mining properties, net | 0 |
Mineral interest | 78,133 |
Accumulated depletion | (18,446) |
Mineral interest, net | 59,687 |
Total mining properties | $ 59,687 |

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- Definition Mining properties. + References No definition available. + Details
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- Details
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- Definition Operational mining properties. + References No definition available. + Details
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- Definition Operational mining properties, net. + References No definition available. + Details
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