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Segment Reporting (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | $ 176,386 |  | $ 160,932 |  | $ 503,219 |  | $ 476,391 |  |
Royalty Revenue |  | (139) |  | 1,620 |  | 3,422 |  | 5,379 |  |
Revenues |  | 176,247 |  | 162,552 |  | 506,641 |  | 481,770 |  |
Costs applicable to sales | [1] | 105,408 |  | 120,237 | [2] | 307,428 |  | 354,397 | [3] |
Amortization |  | 27,763 |  | 35,497 |  | 93,232 |  | 107,560 |  |
Exploration |  | 3,706 |  | 2,112 |  | 7,669 |  | 9,957 |  |
Write-downs |  | 0 |  | 0 |  | 4,446 |  | 0 |  |
Other operating expenses |  | 11,604 |  | 11,632 |  | 35,848 |  | 37,947 |  |
Fair value adjustments, net |  | (961) |  | 5,786 |  | (13,235) |  | 3,657 |  |
Interest expense, net |  | (8,068) |  | (12,446) |  | (30,063) |  | (33,945) |  |
Other, net |  | (3,635) |  | (8,893) |  | (4,178) |  | (14,257) |  |
Income and mining tax benefit (expense) |  | 54,455 |  | 8,260 |  | 53,118 |  | 8,451 |  |
Net income (loss) |  | 69,557 |  | (14,219) |  | 63,660 |  | (64,185) |  |
Assets, Net |  | 1,109,910 |  | 1,458,659 | [4] | 1,109,910 |  | 1,458,659 | [4] | $ 1,103,310
Capital expenditures |  | 25,627 |  | 23,861 |  | 71,087 |  | 65,158 |  |
Palmarejo [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 30,663 |  | 49,187 |  | 108,748 |  | 127,455 |  |
Royalty Revenue |  | 0 |  | 0 |  |  |  | 0 |  |
Revenues |  | 30,663 |  | 49,187 |  | 108,748 |  | 127,455 |  |
Costs applicable to sales |  | 16,033 | [5] | 34,093 | [2] | 59,936 | [6] | 98,695 | [3] |
Amortization |  | 5,761 |  | 8,617 |  | 27,815 |  | 24,997 |  |
Exploration |  | 1,262 |  | 1,087 |  | 2,625 |  | 4,047 |  |
Write-downs |  | 0 |  |  |  |  |  |  |  |
Other operating expenses |  | 305 |  | 303 |  | 898 |  | 940 |  |
Fair value adjustments, net |  | (110) |  | 2,998 |  | (5,814) |  | 1,882 |  |
Interest expense, net |  | (184) |  | (928) |  | (1,343) |  | (3,112) |  |
Other, net |  | (2,223) |  | (7,870) |  | (7,818) |  | (9,478) |  |
Income and mining tax benefit (expense) |  | 35,671 |  | 10,370 |  | 38,922 |  | 9,836 |  |
Net income (loss) |  | 40,456 |  | 9,657 |  | 41,421 |  | (2,096) |  |
Assets, Net |  | 430,716 | [5] | 653,501 | [4] | 430,716 | [5] | 653,501 | [4] |
Capital expenditures |  | 10,012 |  | 10,514 |  | 27,690 |  | 30,421 |  |
Rochester [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 37,946 |  | 34,638 |  | 103,689 |  | 115,010 |  |
Royalty Revenue |  | 0 |  | 0 |  |  |  | 0 |  |
Revenues |  | 37,946 |  | 34,638 |  | 103,689 |  | 115,010 |  |
Costs applicable to sales |  | 21,783 | [5] | 25,436 | [2] | 65,989 | [6] | 81,221 | [3] |
Amortization |  | 5,244 |  | 6,731 |  | 15,994 |  | 18,962 |  |
Exploration |  | 129 |  | 49 |  | 426 |  | 1,272 |  |
Write-downs |  | 0 |  |  |  |  |  |  |  |
Other operating expenses |  | 703 |  | 742 |  | 2,084 |  | 2,190 |  |
Fair value adjustments, net |  | (851) |  | 1,752 |  | (5,787) |  | 596 |  |
Interest expense, net |  | (157) |  | (168) |  | (509) |  | (598) |  |
Other, net |  | 17 |  | 1 |  | (3,840) |  | (38) |  |
Income and mining tax benefit (expense) |  | 7,844 |  | (1,053) |  | 7,429 |  | (1,753) |  |
Net income (loss) |  | 16,940 |  | 2,212 |  | 16,489 |  | 9,573 |  |
Assets, Net |  | 212,477 | [5] | 192,348 | [4] | 212,477 | [5] | 192,348 | [4] |
Capital expenditures |  | 3,383 |  | 5,281 |  | 10,557 |  | 14,451 |  |
Kensington [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 40,164 |  | 30,466 |  | 112,376 |  | 116,971 |  |
Royalty Revenue |  | 0 |  | 0 |  |  |  | 0 |  |
Revenues |  | 40,164 |  | 30,466 |  | 112,376 |  | 116,971 |  |
Costs applicable to sales |  | 26,709 | [5] | 24,973 | [2] | 73,738 | [6] | 81,844 | [3] |
Amortization |  | 8,046 |  | 8,499 |  | 26,203 |  | 32,738 |  |
Exploration |  | 1,208 |  | 217 |  | 2,138 |  | 2,311 |  |
Write-downs |  | 0 |  |  |  |  |  |  |  |
Other operating expenses |  | 263 |  | 254 |  | 772 |  | 1,015 |  |
Fair value adjustments, net |  | 0 |  | 0 |  |  |  | 0 |  |
Interest expense, net |  | (30) |  | (51) |  | (107) |  | (172) |  |
Other, net |  | (7) |  | 1 |  | (26) |  | (16) |  |
Income and mining tax benefit (expense) |  | 0 |  | 406 |  | 0 |  | (587) |  |
Net income (loss) |  | 3,901 |  | (3,122) |  | 9,392 |  | (1,712) |  |
Assets, Net |  | 192,204 | [5] | 193,712 | [4] | 192,204 | [5] | 193,712 | [4] |
Capital expenditures |  | 8,602 |  | 5,522 |  | 24,228 |  | 14,380 |  |
Wharf [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 39,316 |  | 27,986 |  | 101,250 |  | 48,359 |  |
Royalty Revenue |  | 0 |  | 0 |  |  |  | 0 |  |
Revenues |  | 39,316 |  | 27,986 |  | 101,250 |  | 48,359 |  |
Costs applicable to sales |  | 19,697 | [5] | 17,777 | [2] | 49,500 | [6] | 34,410 | [3] |
Amortization |  | 6,461 |  | 5,642 |  | 15,640 |  | 9,133 |  |
Exploration |  | 2 |  | 0 |  | 2 |  | 0 |  |
Write-downs |  | 0 |  |  |  |  |  |  |  |
Other operating expenses |  | 521 |  | 517 |  | 1,702 |  | 1,188 |  |
Fair value adjustments, net |  | 0 |  | 0 |  |  |  | 0 |  |
Interest expense, net |  | (22) |  | 0 |  | (49) |  | 0 |  |
Other, net |  | 45 |  | 53 |  | 259 |  | 108 |  |
Income and mining tax benefit (expense) |  | 30,208 |  | (907) |  | 29,972 |  | (495) |  |
Net income (loss) |  | 42,866 |  | 3,195 |  | 64,588 |  | 3,241 |  |
Assets, Net |  | 105,456 | [5] | 124,754 | [4] | 105,456 | [5] | 124,754 | [4] |
Capital expenditures |  | 567 |  | 665 |  | 3,488 |  | 1,959 |  |
San Bartolome [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 27,485 |  | 17,391 |  | 73,948 |  | 62,304 |  |
Royalty Revenue |  | 0 |  | 0 |  |  |  | 0 |  |
Revenues |  | 27,485 |  | 17,391 |  | 73,948 |  | 62,304 |  |
Costs applicable to sales |  | 20,813 | [5] | 17,483 | [2] | 56,955 | [6] | 55,767 | [3] |
Amortization |  | 1,723 |  | 3,526 |  | 5,330 |  | 13,487 |  |
Exploration |  | 0 |  | 54 |  |  |  | 132 |  |
Write-downs |  | 0 |  |  |  |  |  |  |  |
Other operating expenses |  | 1,165 |  | 1,059 |  | 2,532 |  | 1,544 |  |
Fair value adjustments, net |  | 0 |  | 0 |  |  |  | 0 |  |
Interest expense, net |  | (8) |  | (100) |  | (18) |  | (674) |  |
Other, net |  | 549 |  | 347 |  | 1,275 |  | 1,219 |  |
Income and mining tax benefit (expense) |  | 5,905 |  | (1,029) |  | 5,182 |  | (2,240) |  |
Net income (loss) |  | 10,230 |  | (5,513) |  | 15,570 |  | (10,322) |  |
Assets, Net |  | 81,704 | [5] | 165,931 | [4] | 81,704 | [5] | 165,931 | [4] |
Capital expenditures |  | 3,001 |  | 1,786 |  | 4,839 |  | 3,729 |  |
Coeur Capital [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 812 |  | 1,264 |  | 3,208 |  | 6,292 |  |
Royalty Revenue |  | (139) |  | 1,620 |  | 3,422 |  | 5,379 |  |
Revenues |  | 673 |  | 2,884 |  | 6,630 |  | 11,671 |  |
Costs applicable to sales |  | 373 | [5] | 475 | [2] | 1,310 | [6] | 2,460 | [3] |
Amortization |  | 138 |  | 1,983 |  | 1,019 |  | 6,753 |  |
Exploration |  | 70 |  | (362) |  | 276 |  | (212) |  |
Write-downs |  | 0 |  |  |  | 4,446 |  |  |  |
Other operating expenses |  | 64 |  | (38) |  | 239 |  | (8) |  |
Fair value adjustments, net |  | 0 |  | 0 |  |  |  | 0 |  |
Interest expense, net |  | (34) |  | 0 |  | (34) |  | 0 |  |
Other, net |  | 2,974 |  | (455) |  | 6,716 |  | (2,904) |  |
Income and mining tax benefit (expense) |  | 3,803 |  | 291 |  | 236 |  | 266 |  |
Net income (loss) |  | 6,771 |  | 662 |  | 6,258 |  | 40 |  |
Assets, Net |  | 9,148 | [5] | 51,553 | [4] | 9,148 | [5] | 51,553 | [4] |
Capital expenditures |  | 0 |  | 0 |  | 0 |  | 0 |  |
Other Mining Properties [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 0 |  | 0 |  | 0 |  | 0 |  |
Royalty Revenue |  | 0 |  | 0 |  | 0 |  | 0 |  |
Revenues |  | 0 |  | 0 |  | 0 |  | 0 |  |
Costs applicable to sales |  | 0 | [5] | 0 | [2] | 0 | [6] | 0 | [3] |
Amortization |  | 390 |  | 499 |  | 1,231 |  | 1,490 |  |
Exploration |  | 1,035 |  | 1,067 |  | 2,202 |  | 2,407 |  |
Write-downs |  | 0 |  |  |  | 0 |  |  |  |
Other operating expenses |  | 8,583 |  | 8,795 |  | 27,621 |  | 31,078 |  |
Fair value adjustments, net |  | 0 |  | 1,036 |  | (1,634) |  | 1,179 |  |
Interest expense, net |  | (7,633) |  | (11,199) |  | (28,003) |  | (29,389) |  |
Other, net |  | (4,990) |  | (970) |  | (744) |  | (3,148) |  |
Income and mining tax benefit (expense) |  | (28,976) |  | 182 |  | (28,623) |  | 3,424 |  |
Net income (loss) |  | (51,607) |  | (21,310) |  | (90,058) |  | (62,909) |  |
Assets, Net |  | 78,205 | [5] | 76,860 | [4] | 78,205 | [5] | 76,860 | [4] |
Capital expenditures |  | 62 |  | 93 |  | 285 |  | 218 |  |
United States [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 117,425 |  | 93,091 |  | 317,315 |  | 280,340 |  |
Mexico [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 30,663 |  | 50,170 |  | 109,674 |  | 129,753 |  |
BOLIVIA |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 27,485 |  | 17,391 |  | 73,948 |  | 62,304 |  |
Australia [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | 812 |  | 1,264 |  | 3,207 |  | 6,292 |  |
Other Foreign Countries [Member] |  |  |  |  |  |  |  |  |  |
Financial information relating to reporting segments |  |  |  |  |  |  |  |  |  |
Revenue |  | $ (138) |  | $ 636 |  | $ 2,497 |  | $ 3,081 |  |
[1] | Excludes amortization.
[2] | Excludes amortization
[3] | Excludes amortization
[4] | Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interests
[5] | Segment assets include receivables, prepaids, inventories, property, plant and equipment, and mineral interest
[6] | Excludes amortization

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