Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]
Total Revenue	$ 168,847	$ 200,825	$ 204,525	$ 171,797	$ 205,929	$ 230,593	$ 254,406	$ 204,564	$ 745,994	$ 895,492	$ 1,021,200
Cost of Goods Sold	(100,227)	(131,728)	(142,924)	(88,784)	(106,473)	(124,365)	(131,182)	(92,542)	(463,663)	(454,562)	(419,547)
Amortization	(63,916)	(60,874)	(57,653)	(50,436)	(52,397)	(52,844)	(61,024)	(52,592)	(232,879)	(218,857)	(224,500)
Gross Profit									49,452	222,073	377,153
General and Administrative Expense									55,343	32,977	31,379
Costs of Metals Sold	5,440	3,305	6,774	6,841	6,441	6,957	6,305	6,567	22,360	26,270	19,128
Gain (Loss) Related to Litigation Settlement			32,000						(32,046)	0	0
Impairment of Long-Lived Assets Held-for-use									772,993	5,825	0
Pre Development									11,869	1,261	19,441
Operating Expenses									894,611	66,333	69,948
Operating Income (Loss)									(845,159)	155,740	307,205
Gains (Losses) on Extinguishment of Debt									0	(1,036)	(5,526)
Gain (Loss) on Derivative Instruments, Net, Pretax									82,768	(23,487)	(52,050)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments									(18,308)	(605)
Interest and other income									13,323	15,041	(6,610)
Interest Expense									41,303	26,169	34,774
Nonoperating Income (Expense)									36,480	(36,256)	(98,960)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									(808,679)	119,484	208,245
Income Tax Expense (Benefit)									(158,116)	70,807	114,746
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(650,563)	48,677	93,499
Income (Loss) from Equity Method Investments									0	0	0
NET INCOME (LOSS)	(581,528)	(46,265)	(35,040)	12,270	37,550	(15,821)	22,973	3,975	(650,563)	48,677	93,499
Marketable Securities, Unrealized Gain (Loss)									(8,489)
Reclassification adjustments for other than temporary impairment of marketable securities									11,221	605	0
Reclassification adjustments for realized loss on sale of marketable securities									83	0	0
Other comprehensive income (loss)									2,815	(2,746)	(4,975)
COMPREHENSIVE INCOME									(647,748)	45,931	88,524
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Total Revenue									0	0	0
Cost of Goods Sold									0	0	0
Amortization									(1,066)	(521)	(450)
Gross Profit									(1,066)	(521)	(450)
General and Administrative Expense									50,213	30,699	28,407
Costs of Metals Sold									1,602	1,946	1,504
Gain (Loss) Related to Litigation Settlement									0
Impairment of Long-Lived Assets Held-for-use									0	0
Pre Development									0	0	0
Operating Expenses									51,815	32,645	29,911
Operating Income (Loss)									(52,881)	(33,166)	(30,361)
Gains (Losses) on Extinguishment of Debt										0	(5,526)
Gain (Loss) on Derivative Instruments, Net, Pretax									(1,346)	3,477	(3,566)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments									(18,097)	(605)
Interest and other income									13,408	5,744	8,871
Interest Expense									25,652	4,158	6,328
Nonoperating Income (Expense)									(31,687)	4,458	(6,549)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									(84,568)	(28,708)	(36,910)
Income Tax Expense (Benefit)									(78,332)	3,844	20,904
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(6,236)	(32,552)	(57,814)
Income (Loss) from Equity Method Investments									(644,327)	81,229	151,313
NET INCOME (LOSS)									(650,563)	48,677	93,499
Marketable Securities, Unrealized Gain (Loss)									(8,489)	(3,351)	(4,975)
Reclassification adjustments for losses included in net income									11,221	605	0
Reclassification adjustments for realized loss on sale of marketable securities									83
Other comprehensive income (loss)									2,815	(2,746)	(4,975)
COMPREHENSIVE INCOME									(647,748)	45,931	88,524
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total Revenue									268,023	243,380	208,517
Cost of Goods Sold									(182,444)	(159,151)	(129,520)
Amortization									(73,802)	(49,750)	(38,670)
Gross Profit									11,777	34,479	40,327
General and Administrative Expense									3,245	1,101	937
Costs of Metals Sold									8,920	7,930	3,754
Gain (Loss) Related to Litigation Settlement									(32,046)
Impairment of Long-Lived Assets Held-for-use									130,694	0
Pre Development									946	(362)	19,311
Operating Expenses									175,851	8,669	24,002
Operating Income (Loss)									(164,074)	25,810	16,325
Gains (Losses) on Extinguishment of Debt										(1,036)	0
Gain (Loss) on Derivative Instruments, Net, Pretax									7,896	4,089	(8,438)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments									(211)	0
Interest and other income									(1,539)	859	1,170
Interest Expense									445	2,997	4,910
Nonoperating Income (Expense)									5,701	915	(12,178)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									(158,373)	26,725	4,147
Income Tax Expense (Benefit)									155	(2,930)	(440)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(158,528)	23,795	3,707
Income (Loss) from Equity Method Investments									(68)	0	0
NET INCOME (LOSS)									(158,596)	23,795	3,707
Marketable Securities, Unrealized Gain (Loss)									(552)	0	0
Reclassification adjustments for losses included in net income									211	0	0
Reclassification adjustments for realized loss on sale of marketable securities									0
Other comprehensive income (loss)									(341)	0	0
COMPREHENSIVE INCOME									(158,937)	23,795	3,707
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total Revenue									477,971	652,112	812,683
Cost of Goods Sold									(281,219)	(295,411)	(290,027)
Amortization									(158,011)	(168,586)	(185,380)
Gross Profit									38,741	188,115	337,276
General and Administrative Expense									1,885	1,177	2,035
Costs of Metals Sold									11,838	16,394	13,870
Gain (Loss) Related to Litigation Settlement									0
Impairment of Long-Lived Assets Held-for-use									642,299	5,825
Pre Development									10,923	1,623	130
Operating Expenses									666,945	25,019	16,035
Operating Income (Loss)									(628,204)	163,096	321,241
Gains (Losses) on Extinguishment of Debt										0	0
Gain (Loss) on Derivative Instruments, Net, Pretax									76,218	(31,053)	(40,046)
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments									0	0
Interest and other income									4,602	13,071	(7,372)
Interest Expense									18,354	23,647	32,815
Nonoperating Income (Expense)									62,466	(41,629)	(80,233)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									(565,738)	121,467	241,008
Income Tax Expense (Benefit)									(79,939)	64,033	93,402
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									(485,799)	57,434	147,606
Income (Loss) from Equity Method Investments									0	0	0
NET INCOME (LOSS)									(485,799)	57,434	147,606
Marketable Securities, Unrealized Gain (Loss)									0	0	0
Reclassification adjustments for losses included in net income									0	0	0
Reclassification adjustments for realized loss on sale of marketable securities									0
Other comprehensive income (loss)									0	0	0
COMPREHENSIVE INCOME									(485,799)	57,434	147,606
Eliminations
Condensed Financial Statements, Captions [Line Items]
Total Revenue									0	0	0
Cost of Goods Sold									0	0	0
Amortization									0	0	0
Gross Profit									0	0	0
General and Administrative Expense									0	0	0
Costs of Metals Sold									0	0	0
Gain (Loss) Related to Litigation Settlement									0
Impairment of Long-Lived Assets Held-for-use									0	0
Pre Development									0	0	0
Operating Expenses									0	0	0
Operating Income (Loss)									0	0	0
Gains (Losses) on Extinguishment of Debt										0	0
Gain (Loss) on Derivative Instruments, Net, Pretax									0	0	0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments									0	0
Interest and other income									(3,148)	(4,633)	(9,279)
Interest Expense									(3,148)	(4,633)	(9,279)
Nonoperating Income (Expense)									0	0	0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									0	0	0
Income Tax Expense (Benefit)									0	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest									0	0	0
Income (Loss) from Equity Method Investments									644,395	(81,229)	(151,313)
NET INCOME (LOSS)									644,395	(81,229)	(151,313)
Marketable Securities, Unrealized Gain (Loss)									552	0	0
Reclassification adjustments for losses included in net income									(211)	0	0
Reclassification adjustments for realized loss on sale of marketable securities									0
Other comprehensive income (loss)									341	0	0
COMPREHENSIVE INCOME									$ 644,736	$ (81,229)	$ (151,313)