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Mining Properties (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Mining Properties |  |
Operational mining properties: | $ 913,953 | $ 912,084
Accumulated depletion | (596,214) | (533,195)
Operational mining properties, net | 317,739 | 378,889
Mineral interest | 949,172 | 1,096,315
Accumulated depletion | (554,956) | (503,637)
Mineral interest, net | 394,216 | 592,678
Mineral Properties, Net | 711,955 | 971,567
Palmarejo [Member] |  |
Mining Properties |  |
Operational mining properties: | 260,838 | 239,780
Accumulated depletion | (179,894) | (163,414)
Operational mining properties, net | 80,944 | 76,366
Mineral interest | 629,303 | 629,303
Accumulated depletion | (501,039) | (472,448)
Mineral interest, net | 128,264 | 156,855
Mineral Properties, Net | 209,208 | 233,221
Rochester [Member] |  |
Mining Properties |  |
Operational mining properties: | 220,127 | 200,126
Accumulated depletion | (155,079) | (151,141)
Operational mining properties, net | 65,048 | 48,985
Mineral interest | 18,541 | 18,521
Accumulated depletion |  | 0
Mineral interest, net | 18,541 | 18,521
Mineral Properties, Net | 83,589 | 67,506
Silvertip [Member] |  |
Mining Properties |  |
Operational mining properties: | 50,146 | 101,933
Accumulated depletion | (9,623) | (1,411)
Operational mining properties, net | 40,523 | 100,522
Mineral interest | 105,736 | 252,899
Accumulated depletion | (24,147) | (4,105)
Mineral interest, net | 81,589 | 248,794
Mineral Properties, Net | 122,112 | 349,316
Kensington |  |
Mining Properties |  |
Operational mining properties: | 345,026 | 324,414
Accumulated depletion | (230,869) | (198,456)
Operational mining properties, net | 114,157 | 125,958
Mineral interest |  | 0
Accumulated depletion |  | 0
Mineral interest, net | 0 | 0
Mineral Properties, Net | 114,157 | 125,958
Wharf [Member] |  |
Mining Properties |  |
Operational mining properties: | 34,165 | 41,761
Accumulated depletion | (20,071) | (18,759)
Operational mining properties, net | 14,094 | 23,002
Mineral interest | 45,837 | 45,837
Accumulated depletion | (29,051) | (26,667)
Mineral interest, net | 16,786 | 19,170
Mineral Properties, Net | 30,880 | 42,172
Sterling [Member] |  |
Mining Properties |  |
Operational mining properties: | 3,651 | 4,070
Accumulated depletion | (678) | (14)
Operational mining properties, net | 2,973 | 4,056
Mineral interest | 95,499 | 95,499
Accumulated depletion | 0 | 0
Mineral interest, net | 95,499 | 95,499
Mineral Properties, Net | 98,472 | 99,555
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
Mineral Properties, Net | 49,085 | 49,085
Other Mining Properties [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 | 0
Accumulated depletion | 0 | 0
Operational mining properties, net | 0 | 0
Mineral interest | 5,171 | 5,171
Accumulated depletion | (719) | (417)
Mineral interest, net | 4,452 | 4,754
Mineral Properties, Net | $ 4,452 | $ 4,754

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