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Segment Reporting (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Financial information relating to reporting segments |  |  |  |
Revenue |  | $ 163,267 | $ 185,554 |
Revenues |  | 163,267 | 185,554 |
Costs applicable to sales | [1] | 99,340 | 114,490 |
Amortization |  | 30,777 | 38,693 |
Exploration |  | 6,683 | 5,252 |
Other operating expenses |  | 13,029 | 13,962 |
Fair value adjustments, net, pretax |  | 4,987 | (1,200) |
Interest expense, net |  | (5,965) | (3,579) |
Other, net |  | 180 | 20,799 |
Income and mining tax benefit (expense) |  | (11,949) | (10,878) |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | 691 | 18,299 |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 550 | 364 |
Assets, Net | [2] | 1,424,210 | 1,023,211 | $ 1,344,553
Capital expenditures |  | 42,345 | 23,591 |
Palmarejo [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 70,037 | 77,704 |
Costs applicable to sales | [1] | 31,096 | 43,001 |
Amortization |  | 16,325 | 20,150 |
Exploration |  | 3,970 | 1,631 |
Other operating expenses |  | 731 | 301 |
Fair value adjustments, net, pretax |  | 0 | 0 |
Interest expense, net |  | (119) | (125) |
Other, net |  | (2,144) | 1,794 |
Income and mining tax benefit (expense) |  | (12,443) | (12,245) |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | 3,209 | 2,045 |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 0 | 0 |
Assets, Net | [2] | 377,146 | 401,623 |
Capital expenditures |  | 9,293 | 6,230 |
Rochester [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 33,497 | 38,979 |
Costs applicable to sales | [1] | 24,305 | 26,439 |
Amortization |  | 4,831 | 5,816 |
Exploration |  | 33 | 144 |
Other operating expenses |  | 884 | 810 |
Fair value adjustments, net, pretax |  | 0 | (1,200) |
Interest expense, net |  | (98) | (117) |
Other, net |  | (40) | (32) |
Income and mining tax benefit (expense) |  | (371) | (498) |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | 2,935 | 3,923 |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 0 | 0 |
Assets, Net | [2] | 245,881 | 227,526 |
Capital expenditures |  | 2,633 | 10,568 |
Silvertip [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 0 |  |
Costs applicable to sales | [1] | 0 |  |
Amortization |  | 0 |  |
Exploration |  | 0 |  |
Other operating expenses |  | 20 |  |
Fair value adjustments, net, pretax |  | 0 |  |
Interest expense, net |  | (410) |  |
Other, net |  | 362 |  |
Income and mining tax benefit (expense) |  | 835 |  |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | 767 |  |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 0 |  |
Assets, Net | [2] | 361,212 |  |
Capital expenditures |  | 18,629 |  |
Kensington [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 36,300 | 37,964 |
Costs applicable to sales | [1] | 28,630 | 28,443 |
Amortization |  | 6,717 | 9,178 |
Exploration |  | 1,590 | 839 |
Other operating expenses |  | 321 | 345 |
Fair value adjustments, net, pretax |  | 0 | 0 |
Interest expense, net |  | (243) | (40) |
Other, net |  | (37) | (808) |
Income and mining tax benefit (expense) |  | 0 | 0 |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | (1,238) | (1,689) |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 0 | 0 |
Assets, Net | [2] | 215,244 | 204,987 |
Capital expenditures |  | 11,364 | 5,521 |
Wharf [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 23,433 | 30,251 |
Costs applicable to sales | [1] | 15,309 | 16,320 |
Amortization |  | 2,657 | 3,111 |
Exploration |  | 10 | 0 |
Other operating expenses |  | 665 | 619 |
Fair value adjustments, net, pretax |  | 0 | 0 |
Interest expense, net |  | (12) | (19) |
Other, net |  | (21) | 89 |
Income and mining tax benefit (expense) |  | (639) | (957) |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | 4,120 | 9,314 |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 0 | 0 |
Assets, Net | [2] | 104,805 | 104,673 |
Capital expenditures |  | 344 | 887 |
Other Mining Properties [Member] |  |  |  |
Financial information relating to reporting segments |  |  |  |
Revenue |  | 0 | 656 |
Costs applicable to sales | [1] | 0 | 287 |
Amortization |  | 247 | 438 |
Exploration |  | 1,080 | 2,638 |
Other operating expenses |  | 10,408 | 11,887 |
Fair value adjustments, net, pretax |  | 4,987 | 0 |
Interest expense, net |  | (5,083) | (3,278) |
Other, net |  | 2,060 | 19,756 |
Income and mining tax benefit (expense) |  | 669 | 2,822 |
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent |  | (9,102) | 4,706 |
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent |  | 550 | 364 |
Assets, Net | [2] | 119,922 | 84,402 |
Capital expenditures |  | $ 82 | $ 385 |
[1] | Excludes amortization.
[2] | Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interest

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