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Mining Properties (Details) - USD ($) $ in Thousands | Mar. 31, 2017 | Dec. 31, 2016
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Mining Properties |  |
Operational mining properties: | $ 707,100 | $ 687,964
Accumulated depletion | (481,374) | (471,874)
Operational mining properties, net | 225,726 | 216,090
Mineral interest | 778,365 | 784,365
Accumulated depletion | (454,884) | (442,000)
Mineral interest, net | 323,481 | 342,365
Total mining properties | 549,207 | 558,455
Palmarejo [Member] |  |
Mining Properties |  |
Operational mining properties: | 179,562 | 174,890
Accumulated depletion | (137,215) | (134,995)
Operational mining properties, net | 42,347 | 39,895
Mineral interest | 629,303 | 629,303
Accumulated depletion | (393,532) | (381,686)
Mineral interest, net | 235,771 | 247,617
Total mining properties | 278,118 | 287,512
Rochester [Member] |  |
Mining Properties |  |
Operational mining properties: | 171,543 | 165,230
Accumulated depletion | (139,519) | (138,244)
Operational mining properties, net | 32,024 | 26,986
Mineral interest | 0 | 0
Accumulated depletion | 0 | 0
Mineral interest, net | 0 | 0
Total mining properties | 32,024 | 26,986
Kensington [Member] |  |
Mining Properties |  |
Operational mining properties: | 279,095 | 271,175
Accumulated depletion | (159,485) | (154,744)
Operational mining properties, net | 119,610 | 116,431
Mineral interest | 0 | 0
Accumulated depletion | 0 | 0
Mineral interest, net | 0 | 0
Total mining properties | 119,610 | 116,431
Wharf [Member] |  |
Mining Properties |  |
Operational mining properties: | 37,562 | 37,485
Accumulated depletion | (12,530) | (11,699)
Operational mining properties, net | 25,032 | 25,786
Mineral interest | 45,837 | 45,837
Accumulated depletion | (20,106) | (19,249)
Mineral interest, net | 25,731 | 26,588
Total mining properties | 50,763 | 52,374
San Bartolome [Member] |  |
Mining Properties |  |
Operational mining properties: | 39,338 | 39,184
Accumulated depletion | (32,625) | (32,192)
Operational mining properties, net | 6,713 | 6,992
Mineral interest | 12,868 | 12,868
Accumulated depletion | (11,762) | (11,695)
Mineral interest, net | 1,106 | 1,173
Total mining properties | 7,819 | 8,165
La Preciosa [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 | 0
Accumulated depletion | 0 | 0
Operational mining properties, net | 0 | 0
Mineral interest | 49,085 | 49,085
Accumulated depletion | 0 | 0
Mineral interest, net | 49,085 | 49,085
Total mining properties | 49,085 | 49,085
Joaquin Project - Argentina [Member] |  |
Mining Properties |  |
Operational mining properties: |  | 0
Accumulated depletion |  |
Operational mining properties, net |  | 0
Mineral interest |  | 10,000
Accumulated depletion |  | 0
Mineral interest, net |  | 10,000
Total mining properties |  | 10,000
Other Mining Properties [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 | 0
Accumulated depletion | 0 | 0
Operational mining properties, net | 0 | 0
Mineral interest | 41,272 | 37,272
Accumulated depletion | (29,484) | (29,370)
Mineral interest, net | 11,788 | 7,902
Total mining properties | $ 11,788 | $ 7,902

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