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Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Condensed Financial Statements, Captions [Line Items] |  |  |
Revenues |  | $ 206,138 | $ 148,387
Costs applicable to sales | [1] | 132,712 | 101,555
Amortization |  | 40,104 | 27,964
General and Administrative Expense |  | 10,133 | 8,276
Exploration Expense, Mining |  | 5,252 | 1,731
Write-downs |  | 0 | 4,446
Pre-development, reclamation, and other |  | 4,581 | 4,204
Total costs and expenses |  | 192,782 | 148,176
Gain (loss) on derivative instruments |  | (1,200) | (8,695)
Other, net |  | 21,139 | 1,314
Interest expense, net |  | (3,586) | (11,120)
Total other income (expense), net |  | 16,353 | (18,501)
Income (loss) before income and mining taxes |  | 29,709 | (18,290)
Income and mining tax benefit (expense) |  | (11,046) | (2,106)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | 18,663 | (20,396)
Income (Loss) from Equity Method Investments |  | 0 | 0
NET INCOME (LOSS) |  | 18,663 | (20,396)
Unrealized gain (loss) on available for sale securities |  | (2,182) | 1,043
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |  | 121 | 0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |  | 1,471 | 588
Other comprehensive income (loss) |  | (590) | 1,631
COMPREHENSIVE INCOME (LOSS) |  | 18,073 | (18,765)
Coeur Mining, Inc. |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Revenues |  | 0 | 0
Costs applicable to sales |  | 0 | 0
Amortization |  | 324 | 423
General and Administrative Expense |  | 10,106 | 8,080
Exploration Expense, Mining |  | 336 | 623
Write-downs |  |  | 0
Pre-development, reclamation, and other |  | 175 | 452
Total costs and expenses |  | 10,941 | 9,578
Gain (loss) on derivative instruments |  | 0 | (1,582)
Other, net |  | 15,222 | 338
Interest expense, net |  | (3,279) | (10,255)
Total other income (expense), net |  | 11,943 | (11,499)
Income (loss) before income and mining taxes |  | 1,002 | (21,077)
Income and mining tax benefit (expense) |  | 1,588 | (209)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | 2,590 | (21,286)
Income (Loss) from Equity Method Investments |  | 16,073 | 890
NET INCOME (LOSS) |  | 18,663 | (20,396)
Unrealized gain (loss) on available for sale securities |  | (2,182) | 1,043
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |  | 121 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |  | 1,471 | 588
Other comprehensive income (loss) |  | (590) | 1,631
COMPREHENSIVE INCOME (LOSS) |  | 18,073 | (18,765)
Guarantor Subsidiaries |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Revenues |  | 107,194 | 93,954
Costs applicable to sales |  | 71,202 | 62,364
Amortization |  | 18,104 | 17,859
General and Administrative Expense |  | 24 | 18
Exploration Expense, Mining |  | 1,727 | 184
Write-downs |  |  | 0
Pre-development, reclamation, and other |  | 1,781 | 1,416
Total costs and expenses |  | 92,838 | 81,841
Gain (loss) on derivative instruments |  | (1,200) | (2,249)
Other, net |  | 5,458 | 2,254
Interest expense, net |  | (175) | (213)
Total other income (expense), net |  | 4,083 | (208)
Income (loss) before income and mining taxes |  | 18,439 | 11,905
Income and mining tax benefit (expense) |  | (2,434) | (307)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | 16,005 | 11,598
Income (Loss) from Equity Method Investments |  | 70 | (4,479)
NET INCOME (LOSS) |  | 16,075 | 7,119
Unrealized gain (loss) on available for sale securities |  | (279) | 976
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |  | 121 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |  | (369) | (381)
Other comprehensive income (loss) |  | (527) | 595
COMPREHENSIVE INCOME (LOSS) |  | 15,548 | 7,714
Non-Guarantor Subsidiaries |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Revenues |  | 98,944 | 54,433
Costs applicable to sales |  | 61,510 | 39,191
Amortization |  | 21,676 | 9,682
General and Administrative Expense |  | 3 | 178
Exploration Expense, Mining |  | 3,189 | 924
Write-downs |  |  | 4,446
Pre-development, reclamation, and other |  | 2,625 | 2,336
Total costs and expenses |  | 89,003 | 56,757
Gain (loss) on derivative instruments |  | 0 | (4,864)
Other, net |  | 1,873 | (253)
Interest expense, net |  | (1,546) | (1,677)
Total other income (expense), net |  | 327 | (6,794)
Income (loss) before income and mining taxes |  | 10,268 | (9,118)
Income and mining tax benefit (expense) |  | (10,200) | (1,590)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | 68 | (10,708)
Income (Loss) from Equity Method Investments |  | (67) | 0
NET INCOME (LOSS) |  | 1 | (10,708)
Unrealized gain (loss) on available for sale securities |  | 0 | 0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |  | 0 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |  | 0 | 0
Other comprehensive income (loss) |  | 0 | 0
COMPREHENSIVE INCOME (LOSS) |  | 1 | (10,708)
Eliminations |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |
Revenues |  | 0 | 0
Costs applicable to sales |  | 0 | 0
Amortization |  | 0 | 0
General and Administrative Expense |  | 0 | 0
Exploration Expense, Mining |  | 0 | 0
Write-downs |  |  | 0
Pre-development, reclamation, and other |  | 0 | 0
Total costs and expenses |  | 0 | 0
Gain (loss) on derivative instruments |  | 0 | 0
Other, net |  | (1,414) | (1,025)
Interest expense, net |  | 1,414 | 1,025
Total other income (expense), net |  | 0 | 0
Income (loss) before income and mining taxes |  | 0 | 0
Income and mining tax benefit (expense) |  | 0 | 0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest |  | 0 | 0
Income (Loss) from Equity Method Investments |  | (16,076) | 3,589
NET INCOME (LOSS) |  | (16,076) | 3,589
Unrealized gain (loss) on available for sale securities |  | 279 | (976)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax |  | (121) |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax |  | 369 | 381
Other comprehensive income (loss) |  | 527 | (595)
COMPREHENSIVE INCOME (LOSS) |  | $ (15,549) | $ 2,994
[1] | Excludes amortization.

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