Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013		Mar. 31, 2014 Coeur Mining, Inc.	Mar. 31, 2013 Coeur Mining, Inc.	Mar. 31, 2014 Guarantor Subsidiaries	Mar. 31, 2013 Guarantor Subsidiaries	Mar. 31, 2014 Non-Guarantor Subsidiaries	Mar. 31, 2013 Non-Guarantor Subsidiaries	Mar. 31, 2014 Eliminations	Mar. 31, 2013 Eliminations	Mar. 31, 2014 Senior Notes due Two Thousand Twenty One [Member]	Mar. 12, 2014 Senior Notes due Two Thousand Twenty One [Member]	Jan. 29, 2013 Senior Notes due Two Thousand Twenty One [Member]
Condensed Financial Statements, Captions [Line Items]
Debt Instrument, Face Amount												$ 450,000	$ 150,000	$ 300,000
Total Revenue	159,633	171,797		0	0	60,500	78,748	99,133	93,049	0	0
Cost of Goods Sold	(106,896)	(88,059)	[1]	0	0	43,238	44,342	63,658	43,717	0	0
Amortization	(40,459)	(49,724)		377	219	15,296	15,141	24,786	34,364	0	0
General and Administrative Expense	13,896	10,227		13,052	9,736	166	168	678	323	0	0
Costs of Metals Sold	4,217	6,841		586	349	2,421	1,464	1,210	5,028	0	0
Impairment of Long-Lived Assets Held-for-use	0	119			0		0		119		0
Pre-development, reclamation, and other	6,984	5,197		0	0	1,536	429	5,448	4,768	0	0
Operating Expenses	172,452	160,167		14,015	10,304	62,657	61,544	95,780	88,319	0	0
Loss on termination of revolving credit facility	(3,035)	0
Gain (Loss) on Derivative Instruments, Net, Pretax	(11,436)	17,796		(526)	(860)	(673)	4,227	(10,237)	14,429	0	0
Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments	(2,588)			0	(35)	(2,588)	0	0	0	0	0
Impairment of marketable securities	2,588	35
Interest and other income	(1,983)	3,856		840	899	46	234	(2,211)	3,563	(658)	(840)
Interest Expense	13,054	9,732		10,183	5,698	26	264	3,503	4,610	(658)	(840)
Nonoperating Income (Expense)	(29,061)	11,885		(9,869)	(5,694)	(3,241)	4,197	(15,951)	13,382	0	0
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	(41,880)	23,515		(23,884)	(15,998)	(5,398)	21,401	(12,598)	18,112	0	0
Income tax expense (benefit)	(4,689)	11,245		146	2,486	0	(780)	(4,835)	7,979	0	0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(37,191)	12,270		(24,030)	(18,484)	(5,398)	20,621	(7,763)	10,133	0	0
Income (Loss) from Equity Method Investments	0	0		(13,161)	30,754	178	0	0	0	12,983	(30,754)
NET INCOME (LOSS)	(37,191)	12,270		(37,191)	12,270	(5,220)	20,621	(7,763)	10,133	12,983	(30,754)
Marketable Securities, Unrealized Gain (Loss)				371	(3,566)	467	0	0	0	(467)	0
Unrealized gain (loss) on available for sale securities	371	(3,566)
Reclassification adjustments for losses included in net income				1,587	35	1,587	0		0	(1,587)	0
Reclassification adjustments for other than temporary impairment of marketable securities	1,587	35
Other comprehensive income (loss)	1,958	(3,531)		1,958	(3,531)	2,054	0	0	0	(2,054)	0
COMPREHENSIVE INCOME	$ (35,233)	$ 8,739		$ (35,233)	$ 8,739	$ (3,166)	$ 20,621	$ (7,763)	$ 10,133	$ 10,929	$ (30,754)
Debt Instrument, Interest Rate, Stated Percentage												7.875%		7.875%

[1] Excludes amortization.