Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Revenues		$ 665,777	$ 646,086	$ 635,742
Revenue		662,497	639,236	632,526
Costs applicable to sales	[1]	409,541	479,654	477,945
Amortization		123,161	143,751	162,436
General and Administrative Expense		29,376	32,834	40,845
Exploration Expense, Mining		12,930	11,647	21,740
Write-downs		4,446	313,337	1,472,721
Pre-development, reclamation, and other		17,219	17,793	26,037
Total costs and expenses		596,673	999,016	2,201,724
Gain (loss) on derivative instruments		(11,581)	5,202	3,618
Other, net		1,875	(15,931)	(5,218)
Interest expense, net		(36,920)	(45,703)	(47,546)
Total other income (expense), net		(67,991)	(40,516)	(49,146)
Income (loss) before income and mining taxes		1,113	(393,446)	(1,615,128)
Income and mining tax benefit (expense)		54,239	26,263	428,254
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		55,352	(367,183)	(1,186,874)
Income (Loss) from Equity Method Investments		0	0	0
NET INCOME (LOSS)		55,352	(367,183)	(1,186,874)
Unrealized gain (loss) on available for sale securities		3,222	(4,154)	(2,290)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		703	2,346	4,042
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		(2,691)	894	346
Other comprehensive income (loss)		1,234	(914)	2,098
COMPREHENSIVE INCOME (LOSS)		56,586	(368,097)	(1,184,776)
Gains (Losses) on Extinguishment of Debt		(21,365)	15,916	0
Other than Temporary Impairment Losses, Investments		703	2,346	6,593
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Revenues		0	0	0
Costs applicable to sales		0	0	0
Amortization		1,558	1,991	1,805
General and Administrative Expense		28,704	32,405	39,976
Exploration Expense, Mining		1,596	2,265	3,560
Write-downs		0	0	0
Pre-development, reclamation, and other		2,044	4,083	8,813
Total costs and expenses		33,902	40,744	54,154
Gain (loss) on derivative instruments		(1,635)	1,224	1,812
Other, net		4,357	4,336	4,406
Interest expense, net		(35,158)	(39,867)	(38,389)
Total other income (expense), net		(53,801)	(18,391)	(32,171)
Income (loss) before income and mining taxes		(87,703)	(59,135)	(86,325)
Income and mining tax benefit (expense)		11,733	1,827	1,742
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		(75,970)	(57,308)	(84,583)
Income (Loss) from Equity Method Investments		131,322	(309,875)	(1,102,291)
NET INCOME (LOSS)		55,352	(367,183)	(1,186,874)
Unrealized gain (loss) on available for sale securities		3,222	(4,154)	(2,290)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		703	2,346	4,042
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		(2,691)	894	346
Other comprehensive income (loss)		1,234	(914)	2,098
COMPREHENSIVE INCOME (LOSS)		56,586	(368,097)	(1,184,776)
Gains (Losses) on Extinguishment of Debt		(21,365)	15,916
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenues		423,488	378,278	261,963
Costs applicable to sales		252,836	261,830	196,805
Amortization		77,392	83,325	65,100
General and Administrative Expense		250	35	6
Exploration Expense, Mining		6,127	3,931	11,157
Write-downs		0	1,630	107,832
Pre-development, reclamation, and other		5,839	5,920	3,889
Total costs and expenses		342,444	356,671	384,789
Gain (loss) on derivative instruments		(4,133)	818	3,653
Other, net		2,139	(3,106)	(7,023)
Interest expense, net		(861)	(966)	(891)
Total other income (expense), net		(2,855)	(3,254)	(4,261)
Income (loss) before income and mining taxes		78,189	18,353	(127,087)
Income and mining tax benefit (expense)		(7,517)	(2,354)	(2,224)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		70,672	15,999	(129,311)
Income (Loss) from Equity Method Investments		(4,353)	(14,814)	(4,181)
NET INCOME (LOSS)		66,319	1,185	(133,492)
Unrealized gain (loss) on available for sale securities		3,156	(3,118)	(2,272)
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		703	2,346	4,042
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		(3,181)	894	328
Other comprehensive income (loss)		678	122	2,098
COMPREHENSIVE INCOME (LOSS)		66,997	1,307	(131,394)
Gains (Losses) on Extinguishment of Debt		0	0
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenues		242,289	267,808	373,779
Costs applicable to sales		156,705	217,824	281,140
Amortization		44,211	58,435	95,531
General and Administrative Expense		422	394	863
Exploration Expense, Mining		5,207	5,451	7,023
Write-downs		4,446	311,707	1,364,889
Pre-development, reclamation, and other		9,336	7,790	13,335
Total costs and expenses		220,327	601,601	1,762,781
Gain (loss) on derivative instruments		(5,813)	3,160	(1,847)
Other, net		463	(13,385)	227
Interest expense, net		(5,985)	(8,646)	(11,094)
Total other income (expense), net		(11,335)	(18,871)	(12,714)
Income (loss) before income and mining taxes		10,627	(352,664)	(1,401,716)
Income and mining tax benefit (expense)		50,023	26,790	428,736
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		60,650	(325,874)	(972,980)
Income (Loss) from Equity Method Investments		0	0	0
NET INCOME (LOSS)		60,650	(325,874)	(972,980)
Unrealized gain (loss) on available for sale securities		0	0	0
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		0	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		0	0	0
Other comprehensive income (loss)		0	0	0
COMPREHENSIVE INCOME (LOSS)		60,650	(325,874)	(972,980)
Gains (Losses) on Extinguishment of Debt		0	0
Eliminations
Condensed Financial Statements, Captions [Line Items]
Revenues		0	0	0
Costs applicable to sales		0	0	0
Amortization		0	0	0
General and Administrative Expense		0	0	0
Exploration Expense, Mining		0	0	0
Write-downs		0	0	0
Pre-development, reclamation, and other		0	0	0
Total costs and expenses		0	0	0
Gain (loss) on derivative instruments		0	0	0
Other, net		(5,084)	(3,776)	(2,828)
Interest expense, net		5,084	3,776	2,828
Total other income (expense), net		0	0	0
Income (loss) before income and mining taxes		0	0	0
Income and mining tax benefit (expense)		0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		0	0	0
Income (Loss) from Equity Method Investments		(126,969)	324,689	1,106,472
NET INCOME (LOSS)		(126,969)	324,689	1,106,472
Unrealized gain (loss) on available for sale securities		(3,156)	3,118	2,272
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI for Write-down of Securities, Net of Tax		(703)	(2,346)	(4,042)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax		3,181	(894)	(328)
Other comprehensive income (loss)		(678)	(122)	(2,098)
COMPREHENSIVE INCOME (LOSS)		(127,647)	324,567	$ 1,104,374
Gains (Losses) on Extinguishment of Debt		$ 0	$ 0

[1] Excludes amortization.