Coeur Mining (CDE) 10-Q 7 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	6-May-14
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'COEUR MINING, INC.	'
Entity Central Index Key	'0000215466	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Trading Symbol	'CDE	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	103,524,301

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Total Revenue	$159,633	$171,797
COSTS AND EXPENSES	'	'
Costs applicable to sales	106,896	88,059	[1]
Amortization	40,459	49,724
General and administrative	13,896	10,227
Exploration	4,217	6,841
Write-downs	0	119
Pre-development, reclamation, and other	6,984	5,197
Total cost and expenses	172,452	160,167
OTHER INCOME AND EXPENSE	'	'
Fair value adjustments, net	-11,436	17,796
Impairment of marketable securities	-2,588	-35
Interest and other income	-1,983	3,856
Interest expense, net of capitalized interest	-13,054	-9,732
Total other income and expense	-29,061	11,885
Income before income taxes	-41,880	23,515
Income tax benefit (expense)	4,689	-11,245
NET INCOME (LOSS)	-37,191	12,270
Other Comprehensive Income (Loss), Net of Tax:	'	'
Unrealized gain (loss) on available for sale securities	371	-3,566
Reclassification adjustments for other than temporary impairment of marketable securities	1,587	35
Other comprehensive income (loss)	1,958	-3,531
COMPREHENSIVE INCOME	($35,233)	$8,739
BASIC AND DILUTED INCOME PER SHARE	'	'
Basic (in dollars per share)	($0.36)	$0.14
Diluted (in dollars per share)	($0.36)	$0.14
[1]	Excludes amortization.

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	($234)	$0
Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Net of Tax	-1,001	0
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	$0	$0

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'
NET INCOME (LOSS)	($37,191)	$12,270
Add (deduct) non-cash items	'	'
Amortization	40,459	49,724
Accretion	4,560	4,904
Deferred income taxes	-11,781	7,425
Loss on termination of revolving credit facility	3,035	0
Fair value adjustments, net	10,557	-16,042
Gain (loss) on foreign currency transactions	-209	-465
Stock-based compensation	2,565	1,096
(Gain) loss on Disposition of Assets	271	-868
Impairment of marketable securities	2,588	35
Writedowns	0	119
Other non-cash charges	0	526
Changes in operating assets and liabilities:	'	'
Receivables and other current assets	5,622	3,968
Prepaid expenses and other	-8,109	-2,240
Inventories	-13,912	-20,493
Accounts payable and accrued liabilities	-8,082	-27,025
CASH PROVIDED BY OPERATING ACTIVITIES	-9,627	12,934
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Capital expenditures	-11,936	-12,827
Purchase of short term investments and marketable securities	-46,220	-4,649
Payments for (Proceeds from) Investments	90	4,822
Other	-25	-10,610
CASH USED IN INVESTING ACTIVITIES	-58,091	-23,264
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'
Issuance of notes and bank borrowings	153,000	300,000
Payments on long-term debt, capital leases, and associated costs	-4,111	-55,340
Payments on gold production royalty	-14,683	-15,448
Payments for Repurchase of Common Stock	0	-12,557
Other	-246	-454
CASH USED IN FINANCING ACTIVITIES:	133,960	216,201
INCREASE IN CASH AND CASH EQUIVALENTS	66,242	205,871
Cash and cash equivalents at beginning of period	206,690	125,440
Cash and cash equivalents at end of period	$272,932	$331,311

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents	$272,932	$206,690
Investments	45,628	0
Receivables	75,806	81,074
Ore on leach pads	59,895	50,495
Inventory	133,578	132,023
Deferred tax assets	34,998	35,008
Prepaid expenses and other	30,835	25,940
Current assets	653,672	531,230
NON-CURRENT ASSETS	'	'
Property, plant and equipment, net	476,837	486,273
Mining properties, net	1,740,474	1,751,501
Ore on Leach Pad Non Current	34,485	31,528
Restricted assets	7,426	7,014
Marketable securities	15,646	14,521
Receivables	36,271	36,574
Debt issuance costs, net	11,356	10,812
Deferred tax assets	829	1,189
Other	9,989	15,336
TOTAL ASSETS	2,986,985	2,885,978
CURRENT LIABILITIES	'	'
Accounts payable	49,958	53,847
Accrued liabilities and other	29,861	38,266
Debt	8,095	2,505
Royalty obligations	50,250	48,019
Reclamation	762	913
Deferred tax liabilities	1,858	1,011
Current liabilities	140,784	144,561
NON-CURRENT LIABILITIES	'	'
Debt	456,152	306,130
Royalty obligations	62,390	65,142
Reclamation	58,630	57,515
Deferred tax liabilities	544,096	556,246
Other long-term liabilities	27,236	25,817
Non-current liabilities	1,148,504	1,010,850
SHAREHOLDERS' EQUITY	'	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	1,035	1,028
Additional paid-in capital	2,783,520	2,781,164
Accumulated other comprehensive loss	-2,948	-4,906
Accumulated deficit	-1,083,910	-1,046,719
Shareholders' Equity	1,697,697	1,730,567
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$2,986,985	$2,885,978

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
SHAREHOLDERS' EQUITY	'	'
Common stock, par value	$0.01	$0.01
Common stock, share authorized	150,000,000	150,000,000
Common stock, share issued	103,584,671	102,843,003

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
In Thousands, unless otherwise specified
Balances at Dec. 31, 2013	$1,730,567	$1,028	$2,781,164	($1,046,719)	($4,906)
Balances, in shares at Dec. 31, 2013	'	102,843	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'
Net income	-37,191	0	0	-37,191	0
Other comprehensive loss	1,958	0	0	0	1,958
Common stock issued/cancelled under long-term incentive plans and director fees and options, net	2,363	7	2,356	0	0
Common Stock Cancelled Under Long Term Incentive Plans Net Shares	'	742	'	'	'
Balances at Mar. 31, 2014	$1,697,697	$1,035	$2,783,520	($1,083,910)	($2,948)
Balances, in shares at Mar. 31, 2014	'	103,585	'	'	'

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2014
Basis of Presentation [Abstract]	'
BASIS OF PRESENTATION	'
	BASIS OF PRESENTATION
	The interim condensed consolidated financial statements of Coeur Mining, Inc. (collectively "Coeur" or "the Company") are unaudited. In the opinion of management, all adjustments and disclosures necessary for the fair presentation of these interim statements have been included. The results reported in these interim statements may not be indicative of the results reported for the year ending December 31, 2014. The condensed consolidated December 31, 2013 balance sheet data was derived from the audited consolidated financial statements. Accordingly, these unaudited interim consolidated financial statements should be read in conjunction with the consolidated financial statements for the year ended December 31, 2013 included in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2013 (the "2013 10-K").

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	Recent Accounting Standards
	On January 1, 2014, the Company adopted ASU 2013-11, "Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists." The updated guidance requires an entity to net its unrecognized tax benefits against the deferred tax assets for all same jurisdiction net operating loss carryforwards, a similar tax loss, or tax credit carryforwards. A gross presentation will be required only if such carryforwards are not available or would not be used by the entity to settle any additional income taxes resulting from disallowance of the uncertain tax provision. The Company's adoption had no impact on the Company's consolidated financial position, results of operations, or cash flows.

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
SEGMENT REPORTING	'
	SEGMENT REPORTING
	The Company’s operating segments include the Palmarejo, San Bartolomé, Rochester, and Kensington mines, the La Preciosa project, and Coeur Capital. All operating segments are engaged in the discovery and mining of gold and silver and generate the majority of their revenues from the sale of these precious metals with the exception of Coeur Capital, which holds the Endeavor silver stream and other precious metals royalties. Other includes the Joaquin project, Martha mine, corporate headquarters, elimination of intersegment transactions, and other items necessary to reconcile to consolidated amounts.
	Financial information relating to the Company’s segments is as follows (in thousands):
	Three months ended March 31, 2014	Palmarejo			San Bartolomé			Kensington			Rochester			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine
	Revenue
	Metal sales	$	67,988		$	27,554		$	36,061		$	24,154		$	—		$	2,890		$	—		$	158,647
	Royalties	—			—			—			—			—			986			—			986
		67,988			27,554			36,061			24,154			—			3,876			—			159,633
	Costs and Expenses
	Costs applicable to sales(1)	43,574			18,901			28,531			14,708			—			1,182			—			106,896
	Amortization	18,659			4,457			10,709			4,451			17			1,702			464			40,459
	Exploration	1,005			26			1,044			1,174			184			203			581			4,217
	Other operating expenses	297			140			191			1,345			4,971			241			13,695			20,880
	Other income (expense)
	Interest income and other, net	(1,569		)	682			—			19			(16		)	(2,548		)	(1,139		)	(4,571		)
	Interest expense, net	(2,824		)	(20		)	(22		)	(4		)	—			—			(10,184		)	(13,054		)
	Fair value adjustments, net	(10,237		)	—			—			(673		)	—			—			(526		)	(11,436		)
	Income and mining tax (expense) benefit	3,828			(2,764		)	—			—			(107		)	(288		)	4,020			4,689
	Net income (loss)	$	(6,349	)	$	1,928		$	(4,436	)	$	1,818		$	(5,295	)	$	(2,288	)	$	(22,569	)	$	(37,191	)
	Segment assets(2)	$	1,152,913		$	285,072		$	332,563		$	192,409		$	410,998		$	67,173		$	110,768		$	2,551,896
	Capital expenditures	$	3,742		$	1,441		$	4,711		$	959		$	138		$	—		$	945		$	11,936
	(1)    Excludes amortization
	(2)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mineral interests
	Three months ended March 31, 2013	Palmarejo			San Bartolomé			Kensington			Rochester			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine
	Revenue
	Metal sales	$	57,426		$	33,141		$	39,274		$	39,474		$	—		$	2,983		$	(501	)	$	171,797
	Royalties	—			—			—			—			—			—			—			—
		$	57,426		$	33,141		$	39,274		$	39,474		$	—		$	2,983		$	(501	)	$	171,797
	Costs and Expenses
	Costs applicable to sales(1)	26,718			15,678			23,565			20,777			—			1,321			—			88,059
	Amortization	28,782			4,640			13,286			1,852			—			828			336			49,724
	Exploration	1,980			53			672			484			—			308			3,344			6,841
	Write-downs	—			—			—			—			—			—			119			119
	Other operating expenses	168			3,837			176			473			—			(54		)	10,824			15,424
	Other income (expense)
	Interest income and other, net	1,941			605			130			57			—			11			1,077			3,821
	Interest expense, net	(3,738		)	(32		)	(259		)	(5		)	—			—			(5,698		)	(9,732		)
	Fair value adjustments, net	14,429			—			4,227			—			—			—			(860		)	17,796
	Income and mining tax (expense) benefit	(3,534		)	(4,328		)	—			(725		)	—			(54		)	(2,604		)	(11,245		)
	Net income (loss)	$	8,876		$	5,178		$	5,673		$	15,215		$	—		$	537		$	(23,209	)	$	12,270
	Segment assets(2)	$	1,900,071		$	303,761		$	498,762		$	114,381		$	—		$	32,311		$	114,378		$	2,963,664
	Capital expenditures	$	5,314		$	457		$	3,330		$	3,299		$	—		$	—		$	427		$	12,827
	(1)    Excludes amortization
	(2)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mineral interests
	(in thousands)	March 31, 2014			December 31, 2013
	Assets
	Total assets for reportable segments	$	2,551,896		$	2,558,819
	Cash and cash equivalents	272,932			206,690
	Short term investments	45,628			—
	Other assets	116,529			120,469
	Total consolidated assets	$	2,986,985		$	2,885,978
	Geographic Information
	(in thousands)	March 31, 2014			December 31, 2013
	Long Lived Assets
	United States	$	378,459		$	384,626
	Australia	24,715			25,668
	Argentina	94,558			94,705
	Bolivia	231,336			235,085
	Mexico	1,472,092			1,487,228
	Other Foreign Countries	16,151			10,462
	Total	$	2,217,311		$	2,237,774
	Three months ended March 31,
(in thousands)	2014			2013
Revenue
United States	$	60,215		$	78,748
Mexico	68,511			57,426
Bolivia	27,554			33,141
Australia	2,889			2,983
Other	464			(501		)
Total	$	159,633		$	171,797

Reclamation

Reclamation	3 Months Ended
	Mar. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]	'
RECLAMATION AND MINE CLOSURE	'
	RECLAMATION
	Reclamation and mine closure costs are based principally on legal and regulatory requirements. Management estimates costs associated with reclamation of mining properties as well as remediation costs for inactive properties. The Company uses assumptions about future costs, mineral prices, mineral processing recovery rates, production levels, capital costs and reclamation costs. On an ongoing basis, management evaluates its estimates and assumptions and future expenditures could differ from current estimates.
	Changes to the Company’s asset retirement obligations are as follows (in thousands):
		March 31, 2014			December 31, 2013
	Asset retirement obligation - Beginning	$	57,454		$	34,457
	Accretion	1,317			3,442
	Additions and changes in estimates	—			20,236
	Settlements	(311		)	(681		)
	Asset retirement obligation - Ending	$	58,460		$	57,454
	The Company has accrued $0.9 million and $1.0 million at March 31, 2014 and December 31, 2013, respectively, for reclamation liabilities related to former mining activities. These amounts are also included in Reclamation in the Condensed Consolidated Balance Sheets.

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
STOCK-BASED COMPENSATION PLANS	'
	STOCK-BASED COMPENSATION
	The Company has stock incentive plans for executives and eligible employees. Stock awards include stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares, and performance share units. Stock-based compensation expense for the three months ended March 31, 2014 and 2013 was $2.6 million and $1.1 million, respectively. At March 31, 2014, there was $14.1 million of unrecognized stock-based compensation cost which is expected to be recognized over a weighted-average remaining vesting period of 1.9 years.
	The following table summarizes the grants awarded during the three months ended March 31, 2014:
	Grant date	Restricted	Grant date fair		Stock options	Grant date		Performance	Grant date fair
		stock	value of			fair value of		shares	value of
			restricted stock			stock			performance
						options			shares
	17-Jan-14	243,351	$	11.12	32,417	$	4.39	345,833	$	12.65
	26-Mar-14	435,208	$	9.31	382,755	$	3.74	—	$	—
	The following options and stock appreciation rights were exercised during the three months ended March 31, 2014:
	Award Type	Number of	Weighted Average		Number of Exercisable Units	Weighted Average
		Exercised Units	Exercised Price			Exercisable Price
	Options	—	$	—	233,473	$	30.01
	Stock Appreciation Rights	—	$	—	50,209	$	14.15

Retirement_Savings_Plan

Retirement Savings Plan	3 Months Ended
	Mar. 31, 2014
Postemployment Benefits [Abstract]	'
RETIREMENT SAVINGS PLAN	'
	RETIREMENT SAVINGS PLAN
	The Company maintains a retirement savings plan (which qualifies under Section 401(k) of the U.S. Internal Revenue Code) covering all eligible U.S. employees. Under the plan, employees may elect to contribute up to 75% of base salary, subject to ERISA limitations. The Company maintains a Safe Harbor Match and is required to make matching contributions equal to 100% of the employee’s contribution up to 4% of each employee’s salary. In addition, the Company provides a noncontributory defined contribution based on a percentage of each eligible employee's salary. Total plan expenses recognized for the three months ended March 31, 2014 and 2013 were $1.4 million and $1.3 million, respectively.

Income_and_Mining_Taxes

Income and Mining Taxes	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME AND MINING TAXES
	For the three months ended March 31, 2014 and 2013, the Company reported an income and mining tax benefit of $4.7 million and an income and mining tax expense of $11.2 million, respectively.
	The following table summarizes the components of the Company's income and mining (expense) benefit:
		Three months ended March 31,
	(in thousands)	2014			2013
	United States	$	(146	)	$	(3,212	)
	Argentina	4,432			73
	Australia	(303		)	(105		)
	Mexico	3,721			(3,673		)
	Bolivia	(2,764		)	(4,328		)
	Canada	(251		)	—
	Income tax (expense) benefit	$	4,689		$	(11,245	)
	The income tax provision for the three months ended March 31, 2014 varies from the statutory rate primarily due to full valuation allowance positions in certain jurisdictions, foreign exchange rate differences, and differences in tax rates for the for Company’s foreign operations.
	The Company has U.S. net operating loss carryforwards which expire in 2019 through 2033. Net operating losses in foreign countries have an indefinite carryforward period, except in Mexico where net operating loss carryforwards are limited to ten years.

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
NET INCOME (LOSS) PER SHARE	'
	NET INCOME (LOSS) PER SHARE
	Basic income (loss) per share is computed by dividing net income (loss) available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per share reflects the potential dilution that would occur if securities or other contracts to issue common stock were exercised or converted into common stock. For the three months ended March 31, 2014, 2,071,279 shares of common stock equivalents related to equity-based awards were not included in the diluted per share calculation due to the net loss incurred. For the three months ended March 31, 2013, 780,421 shares of common stock equivalents related to equity-based awards were not included in the diluted per share calculation as the shares would be antidilutive. The 3.25% Convertible Senior Notes were not included in the computation of diluted earnings per share for the three months ended March 31, 2014 and 2013 because there is no excess value upon conversion over the principal amount of the Notes.
		Three months ended March 31,
	In thousands except per share amounts	2014			2013
	Net income (loss) available to common stockholders	$	(37,191	)	$	12,270
	Weighted average shares
	Basic	102,365			89,948
	Effect of share based compensation plans	—			88
	Diluted	102,365			90,036
	Income (loss) per share:
	Basic	$	(0.36	)	$	0.14
	Diluted	$	(0.36	)	$	0.14

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
FAIR VALUE MEASUREMENTS	'
	FAIR VALUE MEASUREMENTS
	The following table presents the components of Fair value adjustments, net in the Condensed Consolidated Statements of Comprehensive Income (Loss) (in thousands):
			Three months ended March 31,
			2014				2013
	Palmarejo royalty obligation embedded derivative		$	(4,019	)		$	23,534
	Palmarejo gold production royalty obligation		(6,218		)		(9,105		)
	Rochester net smelter royalty obligation		(673		)		—
	Gold and silver put options		(1,494		)		4,227
	Foreign exchange contracts		968				(860		)
			$	(11,436	)		$	17,796
	Accounting standards establish a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:
	Level 1	Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;
	Level 2	Quoted market prices in markets that are not active, or inputs that are observable, either directly or indirectly, for substantially the full term of the asset or liability; and
	Level 3	Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (supported by little or no market activity).
	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):
		Fair Value at March 31, 2014
		Total				Level 1				Level 2		Level 3
	Assets:
	Short-term investments	$	45,628			$	45,628			$	—	$	—
	Marketable equity securities	15,646				15,646				—		—
	Gold and silver put options	992				—				992		—
	Other derivative instruments, net	258				—				258		—
		$	62,524			$	61,274			$	1,250	$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	44,357			$	—			$	—	$	44,357
	Rochester net smelter royalty obligation	22,303				—				—		22,303
	Gold and silver put options	226				—				226		—
		$	66,886			$	—			$	226	$	66,660
		Fair Value at December 31, 2013
		Total				Level 1				Level 2		Level 3
	Assets:
	Marketable equity securities	$	14,521			$	14,521			$	—	$	—
	Gold and silver put options	135				—				135		—
		$	14,656			$	14,521			$	135	$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	40,338			$	—			$	—	$	40,338
	Rochester net smelter royalty obligation	21,630				—				—		21,630
	Other derivative instruments, net	1,590				—				1,590		—
		$	63,558			$	—			$	1,590	$	61,968
	The Company’s short-term investments are readily convertible to cash. The Company’s investments in marketable equity securities are recorded at fair market value in the financial statements based on quoted market prices, which are accessible at the measurement date for identical assets. Such instruments are classified within Level 1 of the fair value hierarchy.
	The Company’s gold and silver put and call options and other derivative instruments, net, which relate to the concentrate sales contracts and foreign exchange contracts, are valued using pricing models, which require inputs that are derived from observable market data, including contractual terms, forward market prices, yield curves and credit spreads. The model inputs can generally be verified and do not involve significant management judgment. Such instruments are classified within Level 2 of the fair value hierarchy.
	The estimated fair value of the Palmarejo royalty obligation embedded derivative and Rochester net smelter royalty obligation was estimated based on observable market data including contractual terms, forward silver and gold prices, yield curves and credit spreads.  The Company’s current mine plans are a significant input used in the estimated fair value of the Palmarejo royalty obligation embedded derivative and Rochester net smelter royalty obligation and is considered company specific and unobservable.  Therefore, the Company has classified the Palmarejo royalty obligation embedded derivative and Rochester net smelter royalty obligation as Level 3 financial liabilities. Based on the current mine plans, an expected royalty duration of 2.3 years and 4.9 years were used to estimate the fair value of the Palmarejo royalty obligation embedded derivative and Rochester net smelter royalty obligation, respectively, at March 31, 2014.
	No assets or liabilities were transferred between fair value levels in the three months ended March 31, 2014.
	The following table presents the changes in the fair value of the Company's Level 3 financial liabilities for the three months ended March 31, 2014:
		Balance at the beginning of the period				Revaluation				Balance at the end of the period
	Palmarejo royalty obligation embedded derivative	$	40,338			$	4,019			$	44,357
	Rochester net smelter royalty obligation	21,630				673				22,303
	The fair value of financial assets and liabilities measured at book value in the financial statements at March 31, 2014 and December 31, 2013 are presented in the following table (in thousands):
		31-Mar-14
		Book Value				Fair Value				Level 1		Level 2		Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,334			$	5,281			$	—	$	5,281	$	—
	7.875% Senior Notes due 2021	452,964				454,127				—		454,127		—
	Palmarejo Gold Production Royalty Obligation	45,980				57,377				—		—		57,377
		31-Dec-13
		Book Value				Fair Value				Level 1		Level 2		Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,334			$	5,067			$	5,067	$	—	$	—
	7.875% Senior Notes due 2021	300,000				307,314				307,314		—		—
	Palmarejo Gold Production Royalty Obligation	51,193				65,212				—		—		65,212
	The fair value at March 31, 2014 and December 31, 2013 of the 3.25% Convertible Senior Notes and 7.875% Senior Notes outstanding were estimated using quoted market prices. The fair value of debt was transferred to Level 2 from Level 1 of the fair value hierarchy at March 31, 2014 due to a change in observability of quoted market prices.
	The fair value of the Palmarejo gold production royalty obligation is estimated based on observable market data including contractual terms, forward silver and gold prices, yield curves and credit spreads.  The Company’s current mine plan is a significant input used in the estimated fair value of the Palmarejo gold production royalty obligation and is considered company specific and unobservable.  Therefore, the Company has classified the Palmarejo gold production royalty obligation as Level 3 financial liabilities. Based on the current mine plan, an expected royalty duration of 2.3 years was used to estimate the fair value of the Palmarejo gold production royalty obligation as of March 31, 2014.

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
DERIVATIVE FINANCIAL INSTRUMENTS	'
	DERIVATIVE FINANCIAL INSTRUMENTS
	Palmarejo Gold Production Royalty
	On January 21, 2009, the Company entered into a gold production royalty transaction with Franco-Nevada Corporation. The royalty covers 50% of the life of mine production from the Palmarejo mine and adjacent properties. The royalty transaction includes a minimum obligation of 4,167 ounces per month that ends when payments have been made on a total of 400,000 ounces of gold. At March 31, 2014, a total of 124,103 ounces of gold remain outstanding under the minimum royalty obligation.
	The price volatility associated with the minimum royalty obligation is considered an embedded derivative. The Company is required to recognize the change in fair value of the remaining minimum obligation due to changing gold prices. Unrealized gains are recognized in periods when the gold price has decreased from the previous period and unrealized losses are recognized in periods when the gold price increases. The fair value of the embedded derivative is reflected net of the Company's current credit adjusted risk free rate, which was 6.1% and 4.2% at March 31, 2014 and 2013, respectively. The fair value of the embedded derivative at March 31, 2014 and December 31, 2013 was a liability of $44.4 million and $40.3 million, respectively. During the three months ended March 31, 2014 and 2013, the mark-to-market adjustments for this embedded derivative amounted to losses of $4.0 million and gains of $23.5 million, respectively.
	Payments on the royalty obligation decrease the carrying amount of the minimum obligation and the derivative liability. Each monthly payment is an amount equal to the greater of the minimum of 4,167 ounces of gold or 50% of the actual gold production per month multiplied by the excess of the monthly average market price of gold above $408 per ounce, subject to a 1% annual inflation adjustment. For the three months ended March 31, 2014 and 2013, realized losses on settlement of the liabilities were $6.2 million and $9.1 million, respectively. The mark-to-market adjustments and realized losses are included in Fair value adjustments, net in the Condensed Consolidated Statements of Comprehensive Income (Loss).
	Foreign Exchange Hedges
	The Company periodically enters into foreign currency derivative contracts to reduce the foreign exchange risk associated with Mexican peso (“MXN”) operating costs at its Palmarejo mine. At March 31, 2014, the Company had outstanding call and put option contracts, or collars, on $35.0 million with a weighted-average strike price of 12.56 MXN for the floor and 14.98 MXN for the ceiling. The fair value of these contracts was $0.1 million at March 31, 2014. At December 31, 2013, the Company had MXN foreign exchange forward contracts on $12.0 million in U.S. dollars. These contracts required the Company to exchange U.S. dollars for MXN at a weighted average exchange rate of 12.21 MXN to each U.S. dollar and the fair value of those contracts was a liability of $0.9 million at December 31, 2013. In addition, at December 31, 2013, the Company had outstanding collars on $45.0 million with a weighted-average strike price of 12.60 MXN for the floor and 14.80 MXN for the ceiling. The fair value of these contracts was nil at December 31, 2013.
	The Company recorded mark-to-market gains of $1.0 million and gains of $0.7 million for the three months ended March 31, 2014 and 2013, respectively, on the MXN forward contracts and collars. These mark-to-market adjustments are reflected in Fair value adjustments, net in the Condensed Consolidated Statements of Comprehensive Income (Loss). The Company recorded realized losses of $0.9 million and realized gains of $0.6 million in Costs applicable to sales during the three months ended March 31, 2014 and 2013, respectively.
	Concentrate Sales Contracts
	The Company's concentrate sales to third-party smelters, in general, provide for a provisional payment based upon preliminary assays and forward metal prices. The provisionally priced sales contain an embedded derivative that is required to be separated from the host contract for accounting purposes. The host contract is the receivable from the sale of concentrates at the forward price at the time of sale. The embedded derivatives do not qualify for hedge accounting and are marked to market through earnings each period until final settlement. At March 31, 2014, the Company had outstanding provisionally priced sales of 0.1 million ounces of silver and 18,471 ounces of gold at prices of $20.47 and $1,310, respectively. At December 31, 2013, the Company had outstanding provisionally priced sales consisting of 0.2 million ounces of silver and 30,780 ounces of gold at prices of $20.98 and $1,259, respectively.
	Commodity Derivatives
	At March 31, 2014, the Company purchased outstanding put options allowing it to net cash settle 50,000 ounces of gold and 2,500,000 ounces of silver at weighted average strike prices of $1,200 per ounce and $18.00 per ounce, respectively, if the market price of gold or silver were to average less than the strike price during the contract period. In addition, the Company sold outstanding put options requiring it to net cash settle 50,000 ounces of gold and 2,500,000 ounces of silver at weighted average strike prices of $1,050 and $16.00 per ounce, respectively, if the market price of gold or silver were to average less than the strike price during the contract period. These contracts expire during the second and third quarters of 2014. At March 31, 2014, the fair market value of these contracts was a net asset of $0.8 million.
	At December 31, 2013, the Company had outstanding put options allowing it to net settle 25,000 ounces of gold and 1,250,000 ounces of silver at weighted average prices of $1,150 per ounce and $17.00 per ounce, respectively, if the market price of gold or silver were to average less than the strike price during the contract period. At December 31, 2013, the fair market value of these contracts was a net asset of $0.1 million.
	During the three months ended March 31, 2014 and 2013, the Company recorded unrealized losses of $1.5 million and unrealized gains of $4.8 million, respectively, related to outstanding options which was included in Fair value adjustments, net in the Condensed Consolidated Statements of Comprehensive Income (Loss). The Company also recognized a realized gain of $0.3 million and a realized loss of $0.5 million resulting from expiring contracts during the three months ended March 31, 2014 and 2013, respectively.
	At March 31, 2014, the Company had the following derivative instruments that settle in each of the years indicated (in thousands except average prices and notional ounces):
		2014				2015				2016		Thereafter
	Palmarejo gold production royalty	$	21,708			$	24,764			$	14,860	$	—
	Average gold price in excess of minimum contractual deduction	$	498			$	494			$	490	$	—
	Notional ounces	43,602				50,153				30,348		—
	Mexican peso put options purchased	$	35,000			$	—			$	—	$	—
	Average rate (MXN/$)	14.98				—				—		—
	Mexican peso notional amount	524,300				—				—		—
	Mexican peso call options sold	$	35,000			$	—			$	—	$	—
	Average rate (MXN/$)	12.56				—				—		—
	Mexican peso notional amount	439,600				—				—		—
	Silver concentrate sales agreements	$	3,041			$	—			$	—	$	—
	Average silver price	$	20.47			$	—			$	—	$	—
	Notional ounces	148,594				—				—		—
	Gold concentrate sales agreements	$	24,204			$	—			$	—	$	—
	Average gold price	$	1,310			$	—			$	—	$	—
	Notional ounces	18,471				—				—		—
	Gold put options purchased	$	60,000			$	—			$	—	$	—
	Average gold strike price	$	1,200			$	—			$	—	$	—
	Notional ounces	50,000				—				—		—
	Silver put options purchased	$	45,000			$	—			$	—	$	—
	Average silver strike price	$	18			$	—			$	—	$	—
	Notional ounces	2,500,000				—				—		—
	Gold put options sold	$	(52,500	)		$	—			$	—	$	—
	Average gold strike price	$	1,050			$	—			$	—	$	—
	Notional ounces	50,000				—				—		—
	Silver put options sold	$	(40,000	)		$	—			$	—	$	—
	Average silver strike price	$	16			$	—			$	—	$	—
	Notional ounces	2,500,000				—				—		—
	The following summarizes the classification of the fair value of the derivative instruments (in thousands):
		March 31, 2014
		Prepaid				Accrued				Current		Non-current
		expenses and				liabilities and				portion of		portion of
		other				other				royalty		royalty
										obligation		obligation
	Foreign exchange contracts, peso	$	67			$	7			$	—	$	—
	Palmarejo gold production royalty	—				—				20,747		23,610
	Gold and silver put options	992				226				—		—
	Concentrate sales contracts	533				335				—		—
		$	1,592			$	568			$	20,747	$	23,610
		December 31, 2013
		Prepaid				Accrued				Current		Non-current
		expenses and				liabilities and				portion of		portion of
		other				other				royalty		royalty
										obligation		obligation
	Foreign exchange contracts, peso	$	38			$	947			$	—	$	—
	Palmarejo gold production royalty	—				—				17,650		22,688
	Gold and silver put options, net	135				—				—		—
	Concentrate sales contracts	11				693				—		—
	$	184			$	1,640			$	17,650	$	22,688
The following represent mark-to-market gains (losses) on derivative instruments for the three months ended March 31, 2014, and 2013 (in thousands):
			Three months ended March 31,
Financial statement line	Derivative		2014				2013
Sales of metal	Concentrate sales contracts		$	879			$	(1,755	)
Costs applicable to sales	Foreign exchange contracts		(924		)		627
Fair value adjustments, net	Foreign exchange contracts (MXN)		968				738
Fair value adjustments, net	Foreign exchange contracts (CDN)		—				(1,598		)
Fair value adjustments, net	Palmarejo gold royalty		(10,237		)		14,429
Fair value adjustments, net	Put and call options		(1,494		)		4,228
			$	(10,808	)		$	16,669
Credit Risk
The credit risk exposure related to any derivative instruments is limited to the unrealized gains, if any, on outstanding contracts based on current market prices. To reduce counter-party credit exposure, the Company enters into contracts with financial institutions management deems credit worthy and limits credit exposure to each. The Company does not anticipate non-performance by any of its counterparties. In addition, to allow for situations where derivative positions may need to be revised, the Company deals only in markets that management considers highly liquid.

Investments

Investments	3 Months Ended
	Mar. 31, 2014
Investment in Marketable Securities [Abstract]	'
INVESTMENTS	'
	INVESTMENTS
	The Company invests part of its cash balances in a managed portfolio of liquid investments including highly-rated corporate bonds which are classified as short-term investments. The Company also invests in marketable equity securities of silver and gold exploration and development companies. These investments are classified as available-for-sale and are measured at fair value in the financial statements with unrealized gains and losses recorded in Other comprehensive income (loss).
		At March 31, 2014
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Short-term investments	$	45,724			$	(96	)		$	—			$	45,628
	Marketable equity securities	15,484				(724		)		886				15,646
		At December 31, 2013
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable equity securities	$	17,649			$	(3,300	)		$	172			$	14,521
	The following table summarizes the gross unrealized losses on investment securities for which other-than-temporary impairments have not been recognized and the fair values of those securities, aggregated by the length of time the individual securities have been in a continuous unrealized loss position, at March 31, 2014 (in thousands):
		Less than twelve months							Twelve months or more							Total
		Unrealized Losses			Fair Value				Unrealized Losses			Fair Value				Unrealized Losses			Fair Value
	Short-term investments	$	(96	)	$	45,628			$	—		$	—			$	(96	)	$	45,628
	Marketable equity securities	$	—		$	—			$	(724	)	$	1,320			$	(724	)	$	1,320
	In the three months ended March 31, 2014 and 2013, the Company recognized a net unrealized gain of $0.6 million and a net unrealized loss of $3.6 million, respectively, in Other comprehensive income (loss). The Company performs a quarterly assessment on each of its marketable securities with unrealized losses to determine if the security is other than temporarily impaired. The company recorded other-than-temporary impairment losses of $2.6 million and $35 thousand for the three months ended March 31, 2014 and 2013, respectively.

Receivables

Receivables	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
RECEIVABLES	'
	RECEIVABLES
	Receivables consist of the following (in thousands):
		March 31, 2014		31-Dec-13
	Receivables - current
	Trade receivables	$	10,679	$	17,303
	Income tax receivable	7,856		6,240
	Value added tax receivable	51,540		49,168
	Other	5,731		8,363
		$	75,806	$	81,074
	Receivables - non-current
	Value added tax receivable	$	36,271	$	36,574

Metal_and_Other_Inventory

Metal and Other Inventory	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
METAL AND OTHER INVENTORY	'
	INVENTORY AND ORE ON LEACH PADS
	Inventory consists of the following (in thousands):
	Inventory:	March 31, 2014		31-Dec-13
	Concentrate	$	12,788	$	14,855
	Precious metals	54,622		52,250
	Supplies	66,168		64,918
		$	133,578	$	132,023
	Ore on Leach Pads:
	Current	$	59,895	$	50,495
	Non-Current	34,485		31,528
		$	94,380	$	82,023
	Total Inventory and Ore on Leach Pads	$	227,958	$	214,046

Property_Plant_and_Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
PROPERTY, PLANT AND EQUIPMENT	'
	PROPERTY, PLANT AND EQUIPMENT
	Property, plant and equipment consist of the following (in thousands):
		March 31, 2014			31-Dec-13
	Land	$	1,764		$	1,764
	Facilities and equipment	870,251			855,318
	Capital leases	9,015			16,133
		881,030			873,215
	Accumulated amortization	(411,446		)	(395,520		)
		469,584			477,695
	Construction in progress	7,253			8,578
		$	476,837		$	486,273

Mining_Properties

Mining Properties	3 Months Ended
	Mar. 31, 2014
Mining Properties [Abstract]	'
MINING PROPERTIES	'
	MINING PROPERTIES
	Mining properties consist of the following (in thousands):
	March 31, 2014	Palmarejo			San			Kensington			Rochester			La Preciosa		Joaquin		Coeur Capital			Total
					Bartolomé
	Mine development	$	155,262		$	70,764		$	271,834		$	150,280		$	—	$	—	$	—		$	648,140
	Accumulated amortization	(112,989		)	(23,114		)	(85,823		)	(105,767		)	—		—		—			(327,693		)
		42,273			47,650			186,011			44,513			—		—		—			320,447
	Mineral interests	1,146,572			26,643			—			—			408,352		93,429		83,871			1,758,867
	Accumulated amortization	(309,615		)	(9,080		)	—			—			—		—		(20,145		)	(338,840		)
		836,957			17,563			—			—			408,352		93,429		63,726			1,420,027
	Mining properties, net	$	879,230		$	65,213		$	186,011		$	44,513		$	408,352	$	93,429	$	63,726		$	1,740,474
	December 31, 2013	Palmarejo			San			Kensington			Rochester			La Preciosa		Joaquin		Coeur Capital			Total
					Bartolomé
	Mine development	$	151,845		$	70,761		$	268,351		$	150,348		$	—	$	—	$	—		$	641,305
	Accumulated amortization	(110,143		)	(22,236		)	(80,032		)	(103,130		)	—		—		—			(315,541		)
		41,702			48,525			188,319			47,218			—		—		—			325,764
	Mineral interests	1,146,572			26,643			—			—			408,352		93,429		78,133			1,753,129
	Accumulated amortization	(300,187		)	(8,759		)	—			—			—		—		(18,446		)	(327,392		)
		846,385			17,884			—			—			408,352		93,429		59,687			1,425,737
	Mining properties, net	$	888,087		$	66,409		$	188,319		$	47,218		$	408,352	$	93,429	$	59,687		$	1,751,501

Debt

Debt	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
DEBT	'
	DEBT
	Long-term debt and capital lease obligations at March 31, 2014 and December 31, 2013 are as follows (in thousands):
		31-Mar-14						31-Dec-13
		Current			Non-Current			Current		Non-Current
	3.25% Convertible Senior Notes due 2028	$	5,334		$	—		$	—	$	5,334
	7.875% Senior Notes due 2021	—			452,964			—		300,000
	Capital lease obligations	2,761			3,188			2,505		796
		$	8,095		$	456,152		$	2,505	$	306,130
	7.875% Senior Notes due 2021
	On January 29, 2013, the Company completed an offering of $300 million in aggregate principal amount of 7.875% Senior Notes due 2021 (the “Original Notes”) in a private placement conducted pursuant to Rule 144A and Regulation S under the Securities Act of 1933, as amended (the “Securities Act”). The Company commenced an exchange offer for the Notes on September 30, 2013 to exchange the Notes for freely transferable notes containing substantially similar terms, in accordance with the registration rights granted to the holders of the Notes when they were issued. The exchange offer was consummated on November 5, 2013.
	On March 12, 2014, the Company completed an offering of $150 million in aggregate principal amount of 7.875% Senior Notes due 2021 (the “Additional Notes” and together with the Original Notes, the "Senior Notes") in a private placement conducted pursuant to Rule 144A and Regulation S under the Securities Act. The Additional Notes constitute a further issuance of the Original Notes and form a single series of debt securities with the Original Notes. Upon completion of Coeur’s offering of the Additional Notes, the aggregate principal amount of the outstanding Senior Notes was $450 million. The Company commenced an exchange offer for the Additional Notes on April 10, 2014 to exchange the Additional Notes for freely transferable notes containing substantially similar terms, in accordance with the registration rights granted to the holders of the Additional Notes when they were issued. The exchange offer is expected to expire on May 9, 2014, unless extended.
	3.25% Convertible Senior Notes due 2028
	Per the indenture governing the 3.25% Convertible Senior Notes due 2028 (the “Convertible Notes”), the Company announced on February 13, 2013 that it was offering to repurchase all of the Convertible Notes. As of February 12, 2013, there was $48.7 million aggregate principal amount of Convertible Notes outstanding. The Company repurchased $43.3 million in aggregate principal amount, leaving a balance of $5.3 million at March 31, 2014. The notes are classified as current liabilities at March 31, 2014 as a result of the holders' option to require the Company to repurchase the notes on March 15, 2015.
	Revolving Credit Facility
	On August 1, 2012, Coeur Alaska, Inc. and Coeur Rochester, Inc. (the “Borrowers”), each a wholly-owned subsidiary of the Company, entered into a Credit Agreement (the “Credit Agreement”) by and among the Company, the Borrowers, the lenders party thereto and Wells Fargo Bank, N.A., as administrative agent. The Credit Agreement provided for a senior secured revolving credit facility (the “Revolving Credit Facility”) in an aggregate principal amount of up to $100.0 million, which principal amount may be increased, subject to receiving additional commitments therefor, by up to $50.0 million. The unused line fee for the three months ended March 31, 2014 and 2013, respectively, was $0.2 million and $0.1 million, charged to interest expense.
	On January 16, 2014, the Company and the Borrowers entered into Amendment No. 1 to Credit Agreement (the “Amendment”) to amend the Credit Agreement. Pursuant to the Amendment, among other things, the pricing of loans and undrawn commitments under the Credit Agreement was modified and certain modifications were made to the financial covenants and negative covenant provisions under the Credit Agreement. On March 20, 2014, the Borrowers notified the administrative agent that they were terminating the Revolving Credit Facility, effective March 25, 2014. The Company wrote off $3.0 million related to the termination of the Credit Agreement in the three months ended March 31, 2014. No amounts were outstanding under the Revolving Credit Facility at the time of termination, and no early termination penalty was payable in connection with the termination.
	Lines of Credit
	At March 31, 2014, San Bartolomé had two outstanding lines of credit supporting value added tax recoveries in Bolivia. One line is for $7.0 million bearing interest at 3.0% per annum and the other line is for $4.0 million bearing interest at 3.0% per annum. There was no balance outstanding on the two lines of credit at March 31, 2014 and 2013, respectively.
	Palmarejo Gold Production Royalty Obligation
	On January 21, 2009, Coeur Mexicana entered into a gold production royalty transaction with Franco-Nevada Corporation under which Franco-Nevada purchased a royalty covering 50% of the life of mine gold to be produced from its Palmarejo silver and gold mine in Mexico.
	The royalty agreement provides for a minimum obligation to be paid monthly on a total of 400,000 ounces of gold, or 4,167 ounces per month over an initial eight year period. Each monthly payment is an amount equal to the greater of 4,167 ounces of gold or 50% of actual gold production multiplied by the excess of the monthly average market price of gold above $408 per ounce, subject to a 1% annual inflation compounding adjustment. As of March 31, 2014, payments had been made on a total of 275,898 ounces of gold with further payments to be made on an additional 124,103 ounces of gold. After payments have been made on a total of 400,000 ounces of gold, the royalty obligation is payable in the amount of 50% of actual gold production per month multiplied by the excess of the monthly average market price of gold above $400 per ounce, adjusted as described above. Payments under the royalty agreement are to be made in cash or gold bullion. During the three months ended March 31, 2014 and 2013, the Company paid $14.7 million and $15.4 million, respectively, in royalty payments to Franco-Nevada Corporation. Payments made during the minimum obligation period will result in a reduction to the remaining minimum obligation. Payments made beyond the minimum obligation period will be recognized in operating expenses.
	The Company used an implicit interest rate of 30.0% to discount the original obligation, based on the fair value of the consideration received projected over the expected future cash flows at inception of the obligation. The discounted obligation is accreted to its expected future value over the expected minimum payment period based on the implicit interest rate. The Company recognized accretion expense for the three months ended March 31, 2014 and 2013 of $3.2 million and $4.1 million, respectively. At March 31, 2014 and December 31, 2013, the remaining minimum obligation under the royalty agreement was $46.0 million and $51.2 million, respectively.
	Interest Expense
	Interest expense is made up of the following (in thousands):
		Three months ended March 31,
		2014			2013
		(in thousands)
	3.25% Convertible Senior Notes due 2028	$	43		$	337
	7.875% Senior Notes due 2021	6,464			4,134
	Revolving Credit Facility	179			125
	Write off of revolver costs	3,035			—
	Capital lease obligations	59			168
	Other debt obligations	—			197
	Accretion of Franco Nevada royalty obligation	3,196			4,062
	Amortization of debt issuance costs	498			525
	Accretion of debt (premium) discount	(36		)	577
	Capitalized interest	(384		)	(393		)
	Total interest expense, net of capitalized interest	$	13,054		$	9,732

Supplemental_Guarantor_Informa

Supplemental Guarantor Information	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
SUPPLEMENTAL GUARANTOR INFORMATION	'
	SUPPLEMENTAL GUARANTOR INFORMATION
	The following Condensed Consolidating Financial Statements are presented to satisfy disclosure requirements of Rule 3-10 of Regulation S-X resulting from the guarantees by Coeur Alaska, Inc., Coeur Explorations, Inc., Coeur Rochester, Inc., Coeur South America Corp., and Coeur Capital Inc. (collectively, the “Subsidiary Guarantors”) of the $450 million aggregate principal amount of Senior Notes. The following schedules present Condensed Consolidating Financial Statements of (a) Coeur, the parent company; (b) the Subsidiary Guarantors; and (c) certain wholly owned domestic and foreign subsidiaries of the Company (collectively, the “Non-Guarantor Subsidiaries”). Each of the Subsidiary Guarantors is 100% owned by Coeur and the guarantees are full and unconditional. There are no restrictions on the ability of Coeur to obtain funds from its subsidiaries by dividend or loan.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	THREE MONTHS ENDED MARCH 31, 2014
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenue	$	—		$	60,500		$	99,133		$	—		$	159,633
	COSTS AND EXPENSES
	Costs applicable to sales(1)	—			43,238			63,658			—			106,896
	Amortization	377			15,296			24,786			—			40,459
	General and administrative	13,052			166			678			—			13,896
	Exploration	586			2,421			1,210			—			4,217
	Pre-development, reclamation, and other	—			1,536			5,448			—			6,984
	Total costs and expenses	14,015			62,657			95,780			—			172,452
	OTHER INCOME (EXPENSE), NET
	Fair value adjustments, net	(526		)	(673		)	(10,237		)	—			(11,436		)
	Impairment of marketable securities	—			(2,588		)	—			—			(2,588		)
	Interest income and other, net	840			46			(2,211		)	(658		)	(1,983		)
	Interest expense, net of capitalized interest	(10,183		)	(26		)	(3,503		)	658			(13,054		)
	Total other income (expense), net	(9,869		)	(3,241		)	(15,951		)	—			(29,061		)
	Loss before income and mining taxes	(23,884		)	(5,398		)	(12,598		)	—			(41,880		)
	Income and mining tax (expense) benefit	(146		)	—			4,835			—			4,689
	Total loss after income and mining taxes	(24,030		)	(5,398		)	(7,763		)	—			(37,191		)
	Equity income (loss) in consolidated subsidiaries	(13,161		)	178			—			12,983			—
	NET INCOME (LOSS)	$	(37,191	)	$	(5,220	)	$	(7,763	)	$	12,983		$	(37,191	)
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on marketable securities, net of tax	371			467			—			(467		)	371
	Reclassification adjustments for impairment of marketable securities	1,587			1,587						(1,587		)	1,587
	Other comprehensive income (loss)	1,958			2,054			—			(2,054		)	1,958
	COMPREHENSIVE INCOME (LOSS)	$	(35,233	)	$	(3,166	)	$	(7,763	)	$	10,929		$	(35,233	)
	(1) Excludes amortization.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	THREE MONTHS ENDED MARCH 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenue	$	—		$	78,748		$	93,049		$	—		$	171,797
	COSTS AND EXPENSES
	Costs applicable to sales(1)	—			44,342			43,717			—			88,059
	Amortization	219			15,141			34,364			—			49,724
	General and administrative	9,736			168			323			—			10,227
	Exploration	349			1,464			5,028			—			6,841
	Write-downs	—			—			119			—			119
	Pre-development, reclamation, and other	—			429			4,768			—			5,197
	Total costs and expenses	10,304			61,544			88,319			—			160,167
	OTHER INCOME (EXPENSE), NET
	Fair value adjustments, net	(860		)	4,227			14,429			—			17,796
	Impairment of marketable securities	(35		)	—			—			—			(35		)
	Interest income and other, net	899			234			3,563			(840		)	3,856
	Interest expense, net of capitalized interest	(5,698		)	(264		)	(4,610		)	840			(9,732		)
	Total other income (expense), net	(5,694		)	4,197			13,382			—			11,885
	Loss before income and mining taxes	(15,998		)	21,401			18,112			—			23,515
	Income and mining tax (expense) benefit	(2,486		)	(780		)	(7,979		)	—			(11,245		)
	Total loss after income and mining taxes	(18,484		)	20,621			10,133			—			12,270
	Equity income (loss) in consolidated subsidiaries	30,754			—			—			(30,754		)	—
	NET INCOME (LOSS)	$	12,270		$	20,621		$	10,133		$	(30,754	)	$	12,270
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on marketable securities, net of tax	(3,566		)	—			—			—			(3,566		)
	Reclassification adjustments for impairment of marketable securities	35			—			—			—			35
	Other comprehensive loss	(3,531		)	—			—			—			(3,531		)
	COMPREHENSIVE INCOME (LOSS)	$	8,739		$	20,621		$	10,133		$	(30,754	)	$	8,739
	(1) Excludes amortization.
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	THREE MONTHS ENDED MARCH 31, 2014
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
Cash provided by (used in) operating activities	$	(37,623	)	$	4,932		$	10,082		$	12,982		(9,627		)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(945		)	(5,670		)	(5,321		)	—			(11,936		)
Purchase of short term investments and marketable securities	(45,796		)	(424		)	—			—			(46,220		)
Sales and maturities of short term investments	90			—			—			—			90
Other	—			—			(25		)	—			(25		)
Investments in consolidated subsidiaries	13,160			(178		)	—			(12,982		)	—
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(33,491		)	(6,272		)	(5,346		)	(12,982		)	(58,091		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of notes and bank borrowings	153,000			—			—			—			153,000
Payments on long-term debt, capital leases, and associated costs	(3,196		)	(412		)	(503		)	—			(4,111		)
Gold production royalty payments	—			—			(14,683		)	—			(14,683		)
Net intercompany borrowings (lending)	(11,475		)	1,515			9,960			—			—
Other	(246		)	—			—			—			(246		)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	138,083			1,103			(5,226		)	—			133,960
NET CHANGE IN CASH AND CASH EQUIVALENTS	66,969			(237		)	(490		)	—			66,242
Cash and cash equivalents at beginning of period	137,076			991			68,623			—			206,690
Cash and cash equivalents at end of period	$	204,045		$	754		$	68,133		$	—		$	272,932
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
THREE MONTHS ENDED MARCH 31, 2013
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Cash provided by (used in) operating activities	$	22,976		$	16,889		$	3,823		$	(30,754	)	$	12,934
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(428		)	(6,626		)	(5,773		)	—			(12,827		)
Purchase of short term investments and marketable securities	(1,598		)	(16		)	(3,035		)	—			(4,649		)
Sales and maturities of short term investments	1,375			14			3,433			—			4,822
Other	(11,553		)	238			705			—			(10,610		)
Investments in consolidated subsidiaries	(30,754		)	—			—			30,754			—
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(42,958		)	(6,390		)	(4,670		)	30,754			(23,264		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Issuance of notes and bank borrowings	300,000			—			—			—			300,000
Payments on long-term debt, capital leases, and associated costs	(52,565		)	(1,240		)	(1,535		)	—			(55,340		)
Gold production royalty payments	—			—			(15,448		)	—			(15,448		)
Share repurchases	(12,557		)	—			—			—			(12,557		)
Net intercompany borrowings (lending)	7,355			(9,377		)	2,022			—			—
Other	(454		)	—			—			—			(454		)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	241,779			(10,617		)	(14,961		)	—			216,201
NET CHANGE IN CASH AND CASH EQUIVALENTS	221,797			(118		)	(15,808		)	—			205,871
Cash and cash equivalents at beginning of period	86,788			400			38,252			—			125,440
Cash and cash equivalents at end of period	$	308,585		$	282		$	22,444		$	—		$	331,311
CONDENSED CONSOLIDATING BALANCE SHEET
31-Mar-14
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
ASSETS
CURRENT ASSETS
Cash and cash equivalents	$	204,045		$	754		$	68,133		$	—		$	272,932
Investments	45,628			—			—			—			45,628
Receivables	102			13,121			62,583			—			75,806
Ore on leach pads	—			59,895			—			—			59,895
Inventory	—			37,386			96,192			—			133,578
Deferred tax assets	—			—			34,998			—			34,998
Prepaid expenses and other	3,729			9,449			17,657			—			30,835
	253,504			120,605			279,563			—			653,672
NON-CURRENT ASSETS
Property, plant and equipment, net	6,576			141,364			328,897			—			476,837
Mining properties, net	—			236,130			1,504,344			—			1,740,474
Ore on leach pads	—			34,485			—			—			34,485
Restricted assets	830			50			6,546			—			7,426
Marketable securities	—			15,646			—			—			15,646
Receivables	—			—			36,271			—			36,271
Debt issuance costs, net	11,356			—			—			—			11,356
Deferred tax assets	955						(126		)	—			829
Net investment in subsidiaries	1,231,366			24,202			1,600,990			(2,856,558		)	—
Other	54,521			31,372			324,489			(400,393		)	9,989
TOTAL ASSETS	$	1,559,108		$	603,854		$	4,080,974		$	(3,256,951	)	$	2,986,985
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES
Accounts payable	$	1,301		$	17,840		$	30,817		$	—		$	49,958
Accrued liabilities and other	9,811			7,904			13,214			(1,068		)	29,861
Debt	5,334			1,903			335,137			(334,279		)	8,095
Royalty obligations	—			4,951			45,299			—			50,250
Reclamation	—			—			643			119			762
Deferred tax liabilities	—			847			1,011			—			1,858
	16,446			33,445			426,121			(335,228		)	140,784
NON-CURRENT LIABILITIES
Debt	452,964			2,765			65,469			(65,046		)	456,152
Royalty obligations	—			17,352			45,038			—			62,390
Reclamation	—			46,627			12,122			(119		)	58,630
Deferred tax liabilities	37,096			1,618			505,382			—			544,096
Other long-term liabilities	2,634			518			24,084			—			27,236
Intercompany payable (receivable)	(647,729		)	428,962			218,767			—			—
	(155,035		)	497,842			870,862			(65,165		)	1,148,504
STOCKHOLDERS’ EQUITY
Common stock	1,035			250			122,666			(122,916		)	1,035
Additional paid-in capital	2,783,520			79,712			3,258,037			(3,337,749		)	2,783,520
Accumulated deficit	(1,083,910		)	(4,544		)	(596,712		)	601,256			(1,083,910		)
Accumulated other comprehensive loss	(2,948		)	(2,851		)	—			2,851			(2,948		)
	1,697,697			72,567			2,783,991			(2,856,558		)	1,697,697
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,559,108		$	603,854		$	4,080,974		$	(3,256,951	)	$	2,986,985
CONDENSED CONSOLIDATING BALANCE SHEET
31-Dec-13
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
ASSETS
CURRENT ASSETS
Cash and cash equivalents	$	137,076		$	991		$	68,623		$	—		$	206,690
Investments	—			—			—			—			—
Receivables	530			19,982			60,562			—			81,074
Ore on leach pads	—			50,495			—			—			50,495
Inventory	—			35,290			96,733			—			132,023
Deferred tax assets	—			—			35,008			—			35,008
Prepaid expenses and other	4,128			5,282			16,530			—			25,940
	141,734			112,040			277,456			—			531,230
NON-CURRENT ASSETS
Property, plant and equipment, net	5,980			143,118			337,175			—			486,273
Mining properties, net	—			235,537			1,515,964			—			1,751,501
Ore on leach pads	—			31,528			—			—			31,528
Restricted assets	830			50			6,134			—			7,014
Marketable securities	—			14,521			—			—			14,521
Receivables	—			—			36,574			—			36,574
Debt issuance costs, net	10,812			—			—			—			10,812
Deferred tax assets	955			—			234			—			1,189
Net investment in subsidiaries	1,242,480			46,215			1,578,799			(2,867,494		)	—
Other	53,858			14,616			320,425			(373,563		)	15,336
TOTAL ASSETS	$	1,456,649		$	597,625		$	4,072,761		$	(3,241,057	)	$	2,885,978
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES
Accounts payable	$	1,963		$	15,864		$	36,020		$	—		$	53,847
Accrued liabilities and other	16,693			8,016			14,611			(1,054		)	38,266
Debt	—			1,262			309,472			(308,229		)	2,505
Royalty obligations	—			3,934			44,085			—			48,019
Reclamation	—			—			794			119			913
Deferred tax liabilities	—			—			1,011			—			1,011
	18,656			29,076			405,993			(309,164		)	144,561
NON-CURRENT LIABILITIES
Debt	305,335			255			64,820			(64,280		)	306,130
Royalty obligations	—			17,696			47,446			—			65,142
Reclamation	—			45,894			11,740			(119		)	57,515
Deferred tax liabilities	37,095			1,618			517,533			—			556,246
Other long-term liabilities	2,467			544			22,806			—			25,817
Intercompany payable (receivable)	(637,471		)	427,085			210,386			—			—
	(292,574		)	493,092			874,731			(64,399		)	1,010,850
STOCKHOLDERS’ EQUITY
Common stock	1,028			250			122,666			(122,916		)	1,028
Additional paid-in capital	2,781,164			79,712			3,258,037			(3,337,749		)	2,781,164
Accumulated deficit	(1,046,719		)	401			(588,666		)	588,265			(1,046,719		)
Accumulated other comprehensive loss	(4,906		)	(4,906		)	—			4,906			(4,906		)
	1,730,567			75,457			2,792,037			(2,867,494		)	1,730,567
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,456,649		$	597,625		$	4,072,761		$	(3,241,057	)	$	2,885,978

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
COMMITMENTS AND CONTINGENCIES	'
	COMMITMENTS AND CONTINGENCIES
	Labor Union Contracts
	The Company maintains a labor agreement in South America with Sindicato de Trabajadores Mineros de la Empresa Manquiri S.A. at the San Bartolomé mine in Bolivia. The San Bartolomé mine labor agreement, which became effective January 28, 2010, is currently active and does not have a fixed term. At March 31, 2014, approximately 10% of the Company’s worldwide labor force was covered by collective bargaining agreements. We cannot predict whether this agreement will be renewed on similar terms or at all, whether future labor disruptions will occur or, if disruptions do occur, how long they will last.
	Kensington Production Royalty
	On July 7, 1995, Coeur, through its wholly owned subsidiary, Coeur Alaska, Inc., acquired the 50% ownership interest of Echo Bay Exploration Inc., or Echo Bay, giving Coeur 100% ownership of the Kensington property. Coeur Alaska is obligated to pay Echo Bay, a subsidiary of Kinross Gold Corporation, a scaled net smelter return royalty on 1.0 million ounces of future gold production after Coeur Alaska recoups the $32.5 million purchase price and its construction and development expenditures incurred after July 7, 1995 in connection with placing the property into commercial production. The royalty ranges from 1% at gold prices of $400 per ounce to a maximum of 2.5% at gold prices above $475 per ounce, with the royalty to be capped at 1.0 million ounces of production. No royalty has been paid to date as the purchase price has not been recouped.
	Rochester Production Royalties
	The Company acquired the Rochester property from ASARCO, a subsidiary of Grupo Mexico SA de CV, in 1983. The Company is obligated to pay a net smelter royalty interest to ASARCO when the market price of silver equals or exceeds $23.60 per ounce up to a maximum rate of 5% with the condition that Rochester achieves positive cash flow for the applicable year. If cash flow at Rochester is negative in any calendar year, the maximum royalty payable is $250,000. Royalty expense was nil due to silver prices below $23.60 per ounce for the three months ended March 31, 2014 and $1.0 million for the three months ended March 31, 2013.
	Commencing January 1, 2014, Coeur Rochester is obligated to pay a 3.4% net smelter returns royalty on up to 39.4 million silver equivalent ounces produced and sold from a portion of the Rochester mine, payable on a quarterly basis. For each calendar quarter, the royalty will be payable on the actual sales prices received (exclusive of gains or losses associated with trading activities), less refining costs, of gold and silver produced and sold from the applicable portions of the Rochester mine. Changes in the Company's mine plan and silver and gold prices will result in the recognition of mark-to-market gains or losses in Fair value adjustments, net, in the Condensed Consolidated Statement of Comprehensive Income (Loss).
	Palmarejo Gold Production Royalty
	On January 21, 2009, Coeur Mexicana entered into a gold production royalty transaction with Franco-Nevada Corporation under which Franco-Nevada purchased a royalty covering 50% of the life of mine gold to be produced from its Palmarejo silver and gold mine in Mexico. The royalty agreement provides for a minimum obligation to be paid monthly on a total of 400,000 ounces of gold, or 4,167 ounces per month over an initial eight-year period. Please see Note 10 -- Derivative Financial Instruments for further discussion on the royalty obligation.
	Sites Related to Callahan Mining Corporation
	In 1991, the Company acquired all of the outstanding common stock of Callahan Mining Corporation. The Company has received requests for information or notices of potential liability from state or federal agencies with regard to Callahan's operations at sites in Maine, Colorado and Washington. The Company did not make any decisions with respect to generation, transport or disposal of hazardous waste at these sites. Therefore, the Company believes that it is not liable for any potential cleanup costs either directly as an operator or indirectly as a parent. To date, none of these agencies have made any claims against the Company or Callahan for cleanup costs at these sites. The Company anticipates that further agency interaction may be possible with respect to these sites.
	Callahan operated a mine and mill in Brooksville, Maine from 1968 until 1972 and subsequently disposed of the property. In 2000, the U.S. Environmental Protection Agency, or EPA, made a formal request to the Company for information regarding the site. The site was placed on the National Priorities List on September 5, 2002, and the Maine Department of Transportation, a partial owner of the property, signed a consent order in 2005. In January 2009, the EPA and the State of Maine made additional formal requests to the Company for information relating to the site, to which the Company responded. The first phase of cleanup at the site began in April 2011.
	The Van Stone Mine in Stevens County, Washington consists of several parcels of land and was mined from 1926 until 1993 by multiple owners. Callahan sold its parcel in 1990. In February 2010, the State of Washington Department of Ecology notified Callahan that it, among others, is a potentially liable person (PLP) under Washington law. Asarco LLC ("Asarco"), an affiliate of American Smelting and Refining Company, which developed the mill on the site in 1951, settled for $3.5 million. Another potentially liable person, Vaagen Brothers, signed a consent order which allows access to the site for a Remedial Investigation and Feasibility Study. Neither the Company nor Callahan has received any further notices from the Washington Department of Ecology. On June 5, 2012, Asarco filed a lawsuit in the U.S. District Court for the Eastern District of Washington against five named defendants, including Callahan, seeking contribution for the $3.5 million settlement. Callahan filed a response and defense to the lawsuit on December 11, 2012 and does not believe it has any liability to Asarco. The Court has set a trial date for September 22, 2014. On January 23, 2013, the Court entered an Order dismissing one of the five named defendants from the lawsuit as a result of the parties reaching a settlement.
	Callahan controlled the Akron Mine located in Gunnison County, Colorado under lease and option agreements with several owners from 1937-1960. In December 2003, the United States Forest Service (“USFS”) made a formal request for information to the Company for information regarding the site, to which the Company responded. In February 2007, the USFS made a formal request for information to Callahan for information regarding the site, to which Callahan responded. In April 2013, the USFS made a formal request for information to the Company regarding the site, to which the Company responded on June 10, 2013. In November 2013, the USFS made a formal request for additional information to the Company regarding the site, to which the Company responded on January 21, 2014.
	Bolivian Temporary Restriction on Mining above 4,400 Meters
	On October 14, 2009, the Bolivian state-owned mining organization, COMIBOL, announced by resolution that it was temporarily suspending mining activities above the elevation of 4,400 meters above sea level while stability studies of Cerro Rico mountain are undertaken. The Company holds rights to mine above this elevation under valid contracts with COMIBOL as well as under authorized contracts with local mining cooperatives that hold their rights under contract themselves with COMIBOL. The Company temporarily adjusted its mine plan to confine mining activities to the ore deposits below 4,400 meters above sea level and timely notified COMIBOL of the need to lift the restriction.
	The Cooperative Reserva Fiscal, with which the Company has one of those contracts, subsequently interpreted the COMIBOL resolution and determined that the Huacajchi deposit was not covered by such resolution. In March 2010, the Cooperative Reserva Fiscal notified COMIBOL that, based on its interpretation, it was resuming mining of high grade material above the 4,400 meter level in the Huacajchi deposit. In December 2011, the Cooperative Reserva Fiscal sent a similar notification to COMIBOL with respect to a further area above the 4,400 meter level known as Huacajchi Sur. Based on these notifications and on the absence of any objection from COMIBOL, the Company resumed mining operations at the San Bartolomé mine on the Huacajchi deposit and Huacajchi Sur during 2012. Mining in other areas above the 4,400 meter level continues to be suspended.
	The partial suspension may reduce production until the Company is able to resume mining above 4,400 meters, generally. It is uncertain at this time how long the suspension will remain in place. In addition, it is possible that COMIBOL may decide that the Company's operations at the Huacajchi deposit or Huacajchi Sur are subject to the COMIBOL resolution, which may force the Company to ultimately cease mining at such deposits. If COMIBOL objects to the Company mining at the Huacajchi deposit or Huacajchi Sur or if the other restrictions are not lifted, the Company may need to write down the carrying value of the asset. It is also uncertain if any new mining or investment policies or shifts in political attitude may affect mining in Bolivia.
	Appeal of Plan of Operations Amendment at Rochester in Nevada
	The Rochester property is the subject of an administrative appeal filed by Great Basin Resource Watch (“GBRW”) with the Interior Board of Land Appeals (“IBLA”). This appeal challenges the decision of the U.S. Bureau of Land Management (“BLM”) to approve a plan of operations amendment permitting resumed mining in the existing mine pit and construction of a new heap leach pad.  GBRW asserts that the National Environmental Policy Act (“NEPA”) required an Environmental Impact Statement for the plan of operations amendment, as opposed to the Environmental Assessment (“EA”) that was prepared.  GBRW further alleges that BLM violated the Federal Land Policy & Management Act (“FLPMA”) by failing to avoid unnecessary and undue degradation of public lands.  Because GBRW did not seek a stay of BLM's decision, operations are proceeding as approved. Coeur was granted intervenor status in the appeal and is actively participating in its resolution.  The BLM and Coeur assert that the EA complies with NEPA and that BLM complied with FLPMA by, among other things, requiring mitigation of any possible future effects on water quality.  BLM filed a Supplemental Briefing on March 1, 2012 regarding additional analysis conducted by the BLM further supporting and strengthening BLM and Coeur's positions that the EA complies with NEPA. The Company cannot predict whether this will result in further briefing with the IBLA, when the IBLA will rule on the appeal or what impact, if any, an adverse ruling may have on Rochester's operations.

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Financial information relating to the reporting segments	'
	Financial information relating to the Company’s segments is as follows (in thousands):
	Three months ended March 31, 2014	Palmarejo			San Bartolomé			Kensington			Rochester			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine
	Revenue
	Metal sales	$	67,988		$	27,554		$	36,061		$	24,154		$	—		$	2,890		$	—		$	158,647
	Royalties	—			—			—			—			—			986			—			986
		67,988			27,554			36,061			24,154			—			3,876			—			159,633
	Costs and Expenses
	Costs applicable to sales(1)	43,574			18,901			28,531			14,708			—			1,182			—			106,896
	Amortization	18,659			4,457			10,709			4,451			17			1,702			464			40,459
	Exploration	1,005			26			1,044			1,174			184			203			581			4,217
	Other operating expenses	297			140			191			1,345			4,971			241			13,695			20,880
	Other income (expense)
	Interest income and other, net	(1,569		)	682			—			19			(16		)	(2,548		)	(1,139		)	(4,571		)
	Interest expense, net	(2,824		)	(20		)	(22		)	(4		)	—			—			(10,184		)	(13,054		)
	Fair value adjustments, net	(10,237		)	—			—			(673		)	—			—			(526		)	(11,436		)
	Income and mining tax (expense) benefit	3,828			(2,764		)	—			—			(107		)	(288		)	4,020			4,689
	Net income (loss)	$	(6,349	)	$	1,928		$	(4,436	)	$	1,818		$	(5,295	)	$	(2,288	)	$	(22,569	)	$	(37,191	)
	Segment assets(2)	$	1,152,913		$	285,072		$	332,563		$	192,409		$	410,998		$	67,173		$	110,768		$	2,551,896
	Capital expenditures	$	3,742		$	1,441		$	4,711		$	959		$	138		$	—		$	945		$	11,936
	(1)    Excludes amortization
	(2)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mineral interests
	Three months ended March 31, 2013	Palmarejo			San Bartolomé			Kensington			Rochester			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine
	Revenue
	Metal sales	$	57,426		$	33,141		$	39,274		$	39,474		$	—		$	2,983		$	(501	)	$	171,797
	Royalties	—			—			—			—			—			—			—			—
		$	57,426		$	33,141		$	39,274		$	39,474		$	—		$	2,983		$	(501	)	$	171,797
	Costs and Expenses
	Costs applicable to sales(1)	26,718			15,678			23,565			20,777			—			1,321			—			88,059
	Amortization	28,782			4,640			13,286			1,852			—			828			336			49,724
	Exploration	1,980			53			672			484			—			308			3,344			6,841
	Write-downs	—			—			—			—			—			—			119			119
	Other operating expenses	168			3,837			176			473			—			(54		)	10,824			15,424
	Other income (expense)
	Interest income and other, net	1,941			605			130			57			—			11			1,077			3,821
	Interest expense, net	(3,738		)	(32		)	(259		)	(5		)	—			—			(5,698		)	(9,732		)
	Fair value adjustments, net	14,429			—			4,227			—			—			—			(860		)	17,796
	Income and mining tax (expense) benefit	(3,534		)	(4,328		)	—			(725		)	—			(54		)	(2,604		)	(11,245		)
	Net income (loss)	$	8,876		$	5,178		$	5,673		$	15,215		$	—		$	537		$	(23,209	)	$	12,270
	Segment assets(2)	$	1,900,071		$	303,761		$	498,762		$	114,381		$	—		$	32,311		$	114,378		$	2,963,664
	Capital expenditures	$	5,314		$	457		$	3,330		$	3,299		$	—		$	—		$	427		$	12,827
	(1)    Excludes amortization
	(2)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mineral interests
Consolidated Assets	'
	(in thousands)	March 31, 2014			December 31, 2013
	Assets
	Total assets for reportable segments	$	2,551,896		$	2,558,819
	Cash and cash equivalents	272,932			206,690
	Short term investments	45,628			—
	Other assets	116,529			120,469
	Total consolidated assets	$	2,986,985		$	2,885,978
Long Lived Assets by Country	'
	Geographic Information
	(in thousands)	March 31, 2014			December 31, 2013
	Long Lived Assets
	United States	$	378,459		$	384,626
	Australia	24,715			25,668
	Argentina	94,558			94,705
	Bolivia	231,336			235,085
	Mexico	1,472,092			1,487,228
	Other Foreign Countries	16,151			10,462
	Total	$	2,217,311		$	2,237,774
Revenue by Country	'
		Three months ended March 31,
	(in thousands)	2014			2013
	Revenue
	United States	$	60,215		$	78,748
	Mexico	68,511			57,426
	Bolivia	27,554			33,141
	Australia	2,889			2,983
	Other	464			(501		)
	Total	$	159,633		$	171,797

Reclamation_Tables

Reclamation (Tables)	3 Months Ended
	Mar. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]	'
Asset Retirement Obligation	'
	Changes to the Company’s asset retirement obligations are as follows (in thousands):
		March 31, 2014			December 31, 2013
	Asset retirement obligation - Beginning	$	57,454		$	34,457
	Accretion	1,317			3,442
	Additions and changes in estimates	—			20,236
	Settlements	(311		)	(681		)
	Asset retirement obligation - Ending	$	58,460		$	57,454

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity	'
	The following table summarizes the grants awarded during the three months ended March 31, 2014:
	Grant date	Restricted	Grant date fair		Stock options	Grant date		Performance	Grant date fair
		stock	value of			fair value of		shares	value of
			restricted stock			stock			performance
						options			shares
	17-Jan-14	243,351	$	11.12	32,417	$	4.39	345,833	$	12.65
	26-Mar-14	435,208	$	9.31	382,755	$	3.74	—	$	—
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity	'
	The following options and stock appreciation rights were exercised during the three months ended March 31, 2014:
	Award Type	Number of	Weighted Average		Number of Exercisable Units	Weighted Average
		Exercised Units	Exercised Price			Exercisable Price
	Options	—	$	—	233,473	$	30.01
	Stock Appreciation Rights	—	$	—	50,209	$	14.15

Income_and_Mining_Taxes_Tables

Income and Mining Taxes (Tables)	3 Months Ended
	Mar. 31, 2014
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
	The following table summarizes the components of the Company's income and mining (expense) benefit:
		Three months ended March 31,
	(in thousands)	2014			2013
	United States	$	(146	)	$	(3,212	)
	Argentina	4,432			73
	Australia	(303		)	(105		)
	Mexico	3,721			(3,673		)
	Bolivia	(2,764		)	(4,328		)
	Canada	(251		)	—
	Income tax (expense) benefit	$	4,689		$	(11,245	)

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Three months ended March 31,
	In thousands except per share amounts	2014			2013
	Net income (loss) available to common stockholders	$	(37,191	)	$	12,270
	Weighted average shares
	Basic	102,365			89,948
	Effect of share based compensation plans	—			88
	Diluted	102,365			90,036
	Income (loss) per share:
	Basic	$	(0.36	)	$	0.14
	Diluted	$	(0.36	)	$	0.14

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value Adjustments to Comprehensive income (Loss)	'
	The following table presents the components of Fair value adjustments, net in the Condensed Consolidated Statements of Comprehensive Income (Loss) (in thousands):
			Three months ended March 31,
			2014				2013
	Palmarejo royalty obligation embedded derivative		$	(4,019	)		$	23,534
	Palmarejo gold production royalty obligation		(6,218		)		(9,105		)
	Rochester net smelter royalty obligation		(673		)		—
	Gold and silver put options		(1,494		)		4,227
	Foreign exchange contracts		968				(860		)
			$	(11,436	)		$	17,796
Financial assets and liabilities measured at fair value on recurring basis	'
	The following table presents the Company’s financial assets and liabilities measured at fair value on a recurring basis (at least annually) by level within the fair value hierarchy. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement (in thousands):
		Fair Value at March 31, 2014
		Total				Level 1				Level 2		Level 3
	Assets:
	Short-term investments	$	45,628			$	45,628			$	—	$	—
	Marketable equity securities	15,646				15,646				—		—
	Gold and silver put options	992				—				992		—
	Other derivative instruments, net	258				—				258		—
		$	62,524			$	61,274			$	1,250	$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	44,357			$	—			$	—	$	44,357
	Rochester net smelter royalty obligation	22,303				—				—		22,303
	Gold and silver put options	226				—				226		—
		$	66,886			$	—			$	226	$	66,660
		Fair Value at December 31, 2013
		Total				Level 1				Level 2		Level 3
	Assets:
	Marketable equity securities	$	14,521			$	14,521			$	—	$	—
	Gold and silver put options	135				—				135		—
		$	14,656			$	14,521			$	135	$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	40,338			$	—			$	—	$	40,338
	Rochester net smelter royalty obligation	21,630				—				—		21,630
	Other derivative instruments, net	1,590				—				1,590		—
		$	63,558			$	—			$	1,590	$	61,968
Changes in the fair value of the Company's Level 3 financial liabilities	'
	The following table presents the changes in the fair value of the Company's Level 3 financial liabilities for the three months ended March 31, 2014:
		Balance at the beginning of the period				Revaluation				Balance at the end of the period
	Palmarejo royalty obligation embedded derivative	$	40,338			$	4,019			$	44,357
	Rochester net smelter royalty obligation	21,630				673				22,303
Financial Assets and Liabilities not Measured at Fair Value	'
	The fair value of financial assets and liabilities measured at book value in the financial statements at March 31, 2014 and December 31, 2013 are presented in the following table (in thousands):
		31-Mar-14
		Book Value				Fair Value				Level 1		Level 2		Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,334			$	5,281			$	—	$	5,281	$	—
	7.875% Senior Notes due 2021	452,964				454,127				—		454,127		—
	Palmarejo Gold Production Royalty Obligation	45,980				57,377				—		—		57,377
		31-Dec-13
		Book Value				Fair Value				Level 1		Level 2		Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,334			$	5,067			$	5,067	$	—	$	—
	7.875% Senior Notes due 2021	300,000				307,314				307,314		—		—
	Palmarejo Gold Production Royalty Obligation	51,193				65,212				—		—		65,212

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative instruments, future settlement	'
	At March 31, 2014, the Company had the following derivative instruments that settle in each of the years indicated (in thousands except average prices and notional ounces):
		2014				2015				2016		Thereafter
	Palmarejo gold production royalty	$	21,708			$	24,764			$	14,860	$	—
	Average gold price in excess of minimum contractual deduction	$	498			$	494			$	490	$	—
	Notional ounces	43,602				50,153				30,348		—
	Mexican peso put options purchased	$	35,000			$	—			$	—	$	—
	Average rate (MXN/$)	14.98				—				—		—
	Mexican peso notional amount	524,300				—				—		—
	Mexican peso call options sold	$	35,000			$	—			$	—	$	—
	Average rate (MXN/$)	12.56				—				—		—
	Mexican peso notional amount	439,600				—				—		—
	Silver concentrate sales agreements	$	3,041			$	—			$	—	$	—
	Average silver price	$	20.47			$	—			$	—	$	—
	Notional ounces	148,594				—				—		—
	Gold concentrate sales agreements	$	24,204			$	—			$	—	$	—
	Average gold price	$	1,310			$	—			$	—	$	—
	Notional ounces	18,471				—				—		—
	Gold put options purchased	$	60,000			$	—			$	—	$	—
	Average gold strike price	$	1,200			$	—			$	—	$	—
	Notional ounces	50,000				—				—		—
	Silver put options purchased	$	45,000			$	—			$	—	$	—
	Average silver strike price	$	18			$	—			$	—	$	—
	Notional ounces	2,500,000				—				—		—
	Gold put options sold	$	(52,500	)		$	—			$	—	$	—
	Average gold strike price	$	1,050			$	—			$	—	$	—
	Notional ounces	50,000				—				—		—
	Silver put options sold	$	(40,000	)		$	—			$	—	$	—
	Average silver strike price	$	16			$	—			$	—	$	—
	Notional ounces	2,500,000				—				—		—
Fair value of the derivative instruments	'
	The following summarizes the classification of the fair value of the derivative instruments (in thousands):
		March 31, 2014
		Prepaid				Accrued				Current		Non-current
		expenses and				liabilities and				portion of		portion of
		other				other				royalty		royalty
										obligation		obligation
	Foreign exchange contracts, peso	$	67			$	7			$	—	$	—
	Palmarejo gold production royalty	—				—				20,747		23,610
	Gold and silver put options	992				226				—		—
	Concentrate sales contracts	533				335				—		—
		$	1,592			$	568			$	20,747	$	23,610
		December 31, 2013
		Prepaid				Accrued				Current		Non-current
		expenses and				liabilities and				portion of		portion of
		other				other				royalty		royalty
										obligation		obligation
	Foreign exchange contracts, peso	$	38			$	947			$	—	$	—
	Palmarejo gold production royalty	—				—				17,650		22,688
	Gold and silver put options, net	135				—				—		—
	Concentrate sales contracts	11				693				—		—
		$	184			$	1,640			$	17,650	$	22,688
Gain losses on derivative instruments	'
	The following represent mark-to-market gains (losses) on derivative instruments for the three months ended March 31, 2014, and 2013 (in thousands):
				Three months ended March 31,
	Financial statement line	Derivative		2014				2013
	Sales of metal	Concentrate sales contracts		$	879			$	(1,755	)
	Costs applicable to sales	Foreign exchange contracts		(924		)		627
	Fair value adjustments, net	Foreign exchange contracts (MXN)		968				738
	Fair value adjustments, net	Foreign exchange contracts (CDN)		—				(1,598		)
	Fair value adjustments, net	Palmarejo gold royalty		(10,237		)		14,429
	Fair value adjustments, net	Put and call options		(1,494		)		4,228
				$	(10,808	)		$	16,669

Investments_Tables

Investments (Tables)	3 Months Ended
	Mar. 31, 2014
Investment in Marketable Securities [Abstract]	'
Investments	'
		At March 31, 2014
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Short-term investments	$	45,724			$	(96	)		$	—			$	45,628
	Marketable equity securities	15,484				(724		)		886				15,646
		At December 31, 2013
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable equity securities	$	17,649			$	(3,300	)		$	172			$	14,521
Gross unrealized losses on investment securities	'
	The following table summarizes the gross unrealized losses on investment securities for which other-than-temporary impairments have not been recognized and the fair values of those securities, aggregated by the length of time the individual securities have been in a continuous unrealized loss position, at March 31, 2014 (in thousands):
		Less than twelve months							Twelve months or more							Total
		Unrealized Losses			Fair Value				Unrealized Losses			Fair Value				Unrealized Losses			Fair Value
	Short-term investments	$	(96	)	$	45,628			$	—		$	—			$	(96	)	$	45,628
	Marketable equity securities	$	—		$	—			$	(724	)	$	1,320			$	(724	)	$	1,320

Receivables_Tables

Receivables (Tables)	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Receivables	'
	Receivables consist of the following (in thousands):
		March 31, 2014		31-Dec-13
	Receivables - current
	Trade receivables	$	10,679	$	17,303
	Income tax receivable	7,856		6,240
	Value added tax receivable	51,540		49,168
	Other	5,731		8,363
		$	75,806	$	81,074
	Receivables - non-current
	Value added tax receivable	$	36,271	$	36,574

Metal_and_Other_Inventory_Tabl

Metal and Other Inventory (Tables)	3 Months Ended
	Mar. 31, 2014
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventory consists of the following (in thousands):
	Inventory:	March 31, 2014		31-Dec-13
	Concentrate	$	12,788	$	14,855
	Precious metals	54,622		52,250
	Supplies	66,168		64,918
		$	133,578	$	132,023
	Ore on Leach Pads:
	Current	$	59,895	$	50,495
	Non-Current	34,485		31,528
		$	94,380	$	82,023
	Total Inventory and Ore on Leach Pads	$	227,958	$	214,046

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2014
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment consist of the following (in thousands):
		March 31, 2014			31-Dec-13
	Land	$	1,764		$	1,764
	Facilities and equipment	870,251			855,318
	Capital leases	9,015			16,133
		881,030			873,215
	Accumulated amortization	(411,446		)	(395,520		)
		469,584			477,695
	Construction in progress	7,253			8,578
		$	476,837		$	486,273

Mining_Properties_Tables

Mining Properties (Tables)	3 Months Ended
	Mar. 31, 2014
Mining Properties [Abstract]	'
Mining Properties	'
	Mining properties consist of the following (in thousands):
	March 31, 2014	Palmarejo			San			Kensington			Rochester			La Preciosa		Joaquin		Coeur Capital			Total
					Bartolomé
	Mine development	$	155,262		$	70,764		$	271,834		$	150,280		$	—	$	—	$	—		$	648,140
	Accumulated amortization	(112,989		)	(23,114		)	(85,823		)	(105,767		)	—		—		—			(327,693		)
		42,273			47,650			186,011			44,513			—		—		—			320,447
	Mineral interests	1,146,572			26,643			—			—			408,352		93,429		83,871			1,758,867
	Accumulated amortization	(309,615		)	(9,080		)	—			—			—		—		(20,145		)	(338,840		)
		836,957			17,563			—			—			408,352		93,429		63,726			1,420,027
	Mining properties, net	$	879,230		$	65,213		$	186,011		$	44,513		$	408,352	$	93,429	$	63,726		$	1,740,474
	December 31, 2013	Palmarejo			San			Kensington			Rochester			La Preciosa		Joaquin		Coeur Capital			Total
					Bartolomé
	Mine development	$	151,845		$	70,761		$	268,351		$	150,348		$	—	$	—	$	—		$	641,305
	Accumulated amortization	(110,143		)	(22,236		)	(80,032		)	(103,130		)	—		—		—			(315,541		)
		41,702			48,525			188,319			47,218			—		—		—			325,764
	Mineral interests	1,146,572			26,643			—			—			408,352		93,429		78,133			1,753,129
	Accumulated amortization	(300,187		)	(8,759		)	—			—			—		—		(18,446		)	(327,392		)
		846,385			17,884			—			—			408,352		93,429		59,687			1,425,737
	Mining properties, net	$	888,087		$	66,409		$	188,319		$	47,218		$	408,352	$	93,429	$	59,687		$	1,751,501

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2014
Debt Disclosure [Abstract]	'
Long term debt and capital lease obligations	'
	Long-term debt and capital lease obligations at March 31, 2014 and December 31, 2013 are as follows (in thousands):
		31-Mar-14						31-Dec-13
		Current			Non-Current			Current		Non-Current
	3.25% Convertible Senior Notes due 2028	$	5,334		$	—		$	—	$	5,334
	7.875% Senior Notes due 2021	—			452,964			—		300,000
	Capital lease obligations	2,761			3,188			2,505		796
		$	8,095		$	456,152		$	2,505	$	306,130
Interest expenses incurred for various debt instruments	'
	Interest expense is made up of the following (in thousands):
		Three months ended March 31,
		2014			2013
		(in thousands)
	3.25% Convertible Senior Notes due 2028	$	43		$	337
	7.875% Senior Notes due 2021	6,464			4,134
	Revolving Credit Facility	179			125
	Write off of revolver costs	3,035			—
	Capital lease obligations	59			168
	Other debt obligations	—			197
	Accretion of Franco Nevada royalty obligation	3,196			4,062
	Amortization of debt issuance costs	498			525
	Accretion of debt (premium) discount	(36		)	577
	Capitalized interest	(384		)	(393		)
	Total interest expense, net of capitalized interest	$	13,054		$	9,732

Supplemental_Guarantor_Informa1

Supplemental Guarantor Information (Tables)	3 Months Ended
	Mar. 31, 2014
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Schedule of Comprehensive Income (Loss)	'
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	THREE MONTHS ENDED MARCH 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenue	$	—		$	78,748		$	93,049		$	—		$	171,797
	COSTS AND EXPENSES
	Costs applicable to sales(1)	—			44,342			43,717			—			88,059
	Amortization	219			15,141			34,364			—			49,724
	General and administrative	9,736			168			323			—			10,227
	Exploration	349			1,464			5,028			—			6,841
	Write-downs	—			—			119			—			119
	Pre-development, reclamation, and other	—			429			4,768			—			5,197
	Total costs and expenses	10,304			61,544			88,319			—			160,167
	OTHER INCOME (EXPENSE), NET
	Fair value adjustments, net	(860		)	4,227			14,429			—			17,796
	Impairment of marketable securities	(35		)	—			—			—			(35		)
	Interest income and other, net	899			234			3,563			(840		)	3,856
	Interest expense, net of capitalized interest	(5,698		)	(264		)	(4,610		)	840			(9,732		)
	Total other income (expense), net	(5,694		)	4,197			13,382			—			11,885
	Loss before income and mining taxes	(15,998		)	21,401			18,112			—			23,515
	Income and mining tax (expense) benefit	(2,486		)	(780		)	(7,979		)	—			(11,245		)
	Total loss after income and mining taxes	(18,484		)	20,621			10,133			—			12,270
	Equity income (loss) in consolidated subsidiaries	30,754			—			—			(30,754		)	—
	NET INCOME (LOSS)	$	12,270		$	20,621		$	10,133		$	(30,754	)	$	12,270
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on marketable securities, net of tax	(3,566		)	—			—			—			(3,566		)
	Reclassification adjustments for impairment of marketable securities	35			—			—			—			35
	Other comprehensive loss	(3,531		)	—			—			—			(3,531		)
	COMPREHENSIVE INCOME (LOSS)	$	8,739		$	20,621		$	10,133		$	(30,754	)	$	8,739
	(1) Excludes amortization.
	CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	THREE MONTHS ENDED MARCH 31, 2014
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Revenue	$	—		$	60,500		$	99,133		$	—		$	159,633
	COSTS AND EXPENSES
	Costs applicable to sales(1)	—			43,238			63,658			—			106,896
	Amortization	377			15,296			24,786			—			40,459
	General and administrative	13,052			166			678			—			13,896
	Exploration	586			2,421			1,210			—			4,217
	Pre-development, reclamation, and other	—			1,536			5,448			—			6,984
	Total costs and expenses	14,015			62,657			95,780			—			172,452
	OTHER INCOME (EXPENSE), NET
	Fair value adjustments, net	(526		)	(673		)	(10,237		)	—			(11,436		)
	Impairment of marketable securities	—			(2,588		)	—			—			(2,588		)
	Interest income and other, net	840			46			(2,211		)	(658		)	(1,983		)
	Interest expense, net of capitalized interest	(10,183		)	(26		)	(3,503		)	658			(13,054		)
	Total other income (expense), net	(9,869		)	(3,241		)	(15,951		)	—			(29,061		)
	Loss before income and mining taxes	(23,884		)	(5,398		)	(12,598		)	—			(41,880		)
	Income and mining tax (expense) benefit	(146		)	—			4,835			—			4,689
	Total loss after income and mining taxes	(24,030		)	(5,398		)	(7,763		)	—			(37,191		)
	Equity income (loss) in consolidated subsidiaries	(13,161		)	178			—			12,983			—
	NET INCOME (LOSS)	$	(37,191	)	$	(5,220	)	$	(7,763	)	$	12,983		$	(37,191	)
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on marketable securities, net of tax	371			467			—			(467		)	371
	Reclassification adjustments for impairment of marketable securities	1,587			1,587						(1,587		)	1,587
	Other comprehensive income (loss)	1,958			2,054			—			(2,054		)	1,958
	COMPREHENSIVE INCOME (LOSS)	$	(35,233	)	$	(3,166	)	$	(7,763	)	$	10,929		$	(35,233	)
Schedule of Condensed Cash Flow Statement	'
	CONSOLIDATING STATEMENT OF CASH FLOWS
	THREE MONTHS ENDED MARCH 31, 2014
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Cash provided by (used in) operating activities	$	(37,623	)	$	4,932		$	10,082		$	12,982		(9,627		)
	CASH FLOWS FROM INVESTING ACTIVITIES
	Capital expenditures	(945		)	(5,670		)	(5,321		)	—			(11,936		)
	Purchase of short term investments and marketable securities	(45,796		)	(424		)	—			—			(46,220		)
	Sales and maturities of short term investments	90			—			—			—			90
	Other	—			—			(25		)	—			(25		)
	Investments in consolidated subsidiaries	13,160			(178		)	—			(12,982		)	—
	CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(33,491		)	(6,272		)	(5,346		)	(12,982		)	(58,091		)
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Issuance of notes and bank borrowings	153,000			—			—			—			153,000
	Payments on long-term debt, capital leases, and associated costs	(3,196		)	(412		)	(503		)	—			(4,111		)
	Gold production royalty payments	—			—			(14,683		)	—			(14,683		)
	Net intercompany borrowings (lending)	(11,475		)	1,515			9,960			—			—
	Other	(246		)	—			—			—			(246		)
	CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	138,083			1,103			(5,226		)	—			133,960
	NET CHANGE IN CASH AND CASH EQUIVALENTS	66,969			(237		)	(490		)	—			66,242
	Cash and cash equivalents at beginning of period	137,076			991			68,623			—			206,690
	Cash and cash equivalents at end of period	$	204,045		$	754		$	68,133		$	—		$	272,932
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	THREE MONTHS ENDED MARCH 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Cash provided by (used in) operating activities	$	22,976		$	16,889		$	3,823		$	(30,754	)	$	12,934
	CASH FLOWS FROM INVESTING ACTIVITIES
	Capital expenditures	(428		)	(6,626		)	(5,773		)	—			(12,827		)
	Purchase of short term investments and marketable securities	(1,598		)	(16		)	(3,035		)	—			(4,649		)
	Sales and maturities of short term investments	1,375			14			3,433			—			4,822
	Other	(11,553		)	238			705			—			(10,610		)
	Investments in consolidated subsidiaries	(30,754		)	—			—			30,754			—
	CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(42,958		)	(6,390		)	(4,670		)	30,754			(23,264		)
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Issuance of notes and bank borrowings	300,000			—			—			—			300,000
	Payments on long-term debt, capital leases, and associated costs	(52,565		)	(1,240		)	(1,535		)	—			(55,340		)
	Gold production royalty payments	—			—			(15,448		)	—			(15,448		)
	Share repurchases	(12,557		)	—			—			—			(12,557		)
	Net intercompany borrowings (lending)	7,355			(9,377		)	2,022			—			—
	Other	(454		)	—			—			—			(454		)
	CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	241,779			(10,617		)	(14,961		)	—			216,201
	NET CHANGE IN CASH AND CASH EQUIVALENTS	221,797			(118		)	(15,808		)	—			205,871
	Cash and cash equivalents at beginning of period	86,788			400			38,252			—			125,440
	Cash and cash equivalents at end of period	$	308,585		$	282		$	22,444		$	—		$	331,311
Schedule of Condensed Balance Sheet	'
	CONSOLIDATING BALANCE SHEET
	31-Mar-14
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS
	Cash and cash equivalents	$	204,045		$	754		$	68,133		$	—		$	272,932
	Investments	45,628			—			—			—			45,628
	Receivables	102			13,121			62,583			—			75,806
	Ore on leach pads	—			59,895			—			—			59,895
	Inventory	—			37,386			96,192			—			133,578
	Deferred tax assets	—			—			34,998			—			34,998
	Prepaid expenses and other	3,729			9,449			17,657			—			30,835
		253,504			120,605			279,563			—			653,672
	NON-CURRENT ASSETS
	Property, plant and equipment, net	6,576			141,364			328,897			—			476,837
	Mining properties, net	—			236,130			1,504,344			—			1,740,474
	Ore on leach pads	—			34,485			—			—			34,485
	Restricted assets	830			50			6,546			—			7,426
	Marketable securities	—			15,646			—			—			15,646
	Receivables	—			—			36,271			—			36,271
	Debt issuance costs, net	11,356			—			—			—			11,356
	Deferred tax assets	955						(126		)	—			829
	Net investment in subsidiaries	1,231,366			24,202			1,600,990			(2,856,558		)	—
	Other	54,521			31,372			324,489			(400,393		)	9,989
	TOTAL ASSETS	$	1,559,108		$	603,854		$	4,080,974		$	(3,256,951	)	$	2,986,985
	LIABILITIES AND STOCKHOLDERS’ EQUITY
	CURRENT LIABILITIES
	Accounts payable	$	1,301		$	17,840		$	30,817		$	—		$	49,958
	Accrued liabilities and other	9,811			7,904			13,214			(1,068		)	29,861
	Debt	5,334			1,903			335,137			(334,279		)	8,095
	Royalty obligations	—			4,951			45,299			—			50,250
	Reclamation	—			—			643			119			762
	Deferred tax liabilities	—			847			1,011			—			1,858
		16,446			33,445			426,121			(335,228		)	140,784
	NON-CURRENT LIABILITIES
	Debt	452,964			2,765			65,469			(65,046		)	456,152
	Royalty obligations	—			17,352			45,038			—			62,390
	Reclamation	—			46,627			12,122			(119		)	58,630
	Deferred tax liabilities	37,096			1,618			505,382			—			544,096
	Other long-term liabilities	2,634			518			24,084			—			27,236
	Intercompany payable (receivable)	(647,729		)	428,962			218,767			—			—
		(155,035		)	497,842			870,862			(65,165		)	1,148,504
	STOCKHOLDERS’ EQUITY
	Common stock	1,035			250			122,666			(122,916		)	1,035
	Additional paid-in capital	2,783,520			79,712			3,258,037			(3,337,749		)	2,783,520
	Accumulated deficit	(1,083,910		)	(4,544		)	(596,712		)	601,256			(1,083,910		)
	Accumulated other comprehensive loss	(2,948		)	(2,851		)	—			2,851			(2,948		)
		1,697,697			72,567			2,783,991			(2,856,558		)	1,697,697
	TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,559,108		$	603,854		$	4,080,974		$	(3,256,951	)	$	2,986,985
	CONDENSED CONSOLIDATING BALANCE SHEET
	31-Dec-13
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS
	Cash and cash equivalents	$	137,076		$	991		$	68,623		$	—		$	206,690
	Investments	—			—			—			—			—
	Receivables	530			19,982			60,562			—			81,074
	Ore on leach pads	—			50,495			—			—			50,495
	Inventory	—			35,290			96,733			—			132,023
	Deferred tax assets	—			—			35,008			—			35,008
	Prepaid expenses and other	4,128			5,282			16,530			—			25,940
		141,734			112,040			277,456			—			531,230
	NON-CURRENT ASSETS
Property, plant and equipment, net	5,980			143,118			337,175			—			486,273
Mining properties, net	—			235,537			1,515,964			—			1,751,501
Ore on leach pads	—			31,528			—			—			31,528
Restricted assets	830			50			6,134			—			7,014
Marketable securities	—			14,521			—			—			14,521
Receivables	—			—			36,574			—			36,574
Debt issuance costs, net	10,812			—			—			—			10,812
Deferred tax assets	955			—			234			—			1,189
Net investment in subsidiaries	1,242,480			46,215			1,578,799			(2,867,494		)	—
Other	53,858			14,616			320,425			(373,563		)	15,336
TOTAL ASSETS	$	1,456,649		$	597,625		$	4,072,761		$	(3,241,057	)	$	2,885,978
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES
Accounts payable	$	1,963		$	15,864		$	36,020		$	—		$	53,847
Accrued liabilities and other	16,693			8,016			14,611			(1,054		)	38,266
Debt	—			1,262			309,472			(308,229		)	2,505
Royalty obligations	—			3,934			44,085			—			48,019
Reclamation	—			—			794			119			913
Deferred tax liabilities	—			—			1,011			—			1,011
	18,656			29,076			405,993			(309,164		)	144,561
NON-CURRENT LIABILITIES
Debt	305,335			255			64,820			(64,280		)	306,130
Royalty obligations	—			17,696			47,446			—			65,142
Reclamation	—			45,894			11,740			(119		)	57,515
Deferred tax liabilities	37,095			1,618			517,533			—			556,246
Other long-term liabilities	2,467			544			22,806			—			25,817
Intercompany payable (receivable)	(637,471		)	427,085			210,386			—			—
	(292,574		)	493,092			874,731			(64,399		)	1,010,850
STOCKHOLDERS’ EQUITY
Common stock	1,028			250			122,666			(122,916		)	1,028
Additional paid-in capital	2,781,164			79,712			3,258,037			(3,337,749		)	2,781,164
Accumulated deficit	(1,046,719		)	401			(588,666		)	588,265			(1,046,719		)
Accumulated other comprehensive loss	(4,906		)	(4,906		)	—			4,906			(4,906		)
	1,730,567			75,457			2,792,037			(2,867,494		)	1,730,567
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,456,649		$	597,625		$	4,072,761		$	(3,241,057	)	$	2,885,978

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014		Mar. 31, 2013		Dec. 31, 2013
Financial information relating to reporting segments	'		'		'
Total Revenue	$159,633		$171,797		'
Production costs applicable to sales	-106,896		-88,059	[1]	'
Amortization	-40,459		-49,724		'
Exploration	4,217		6,841		'
Write-downs	0		119		'
Interest and other income	-1,983		3,856		'
Interest expense, net	-13,054		-9,732		'
Loss on termination of revolving credit facility	-3,035		0		'
Fair value adjustments, net	-11,436		17,796		'
Income tax benefit (expense)	4,689		-11,245		'
Net income	-37,191		12,270		'
Assets, Net	'		'		2,558,819
Capital expenditures	11,936		12,827		'
Palmarejo [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Production costs applicable to sales	43,574		26,718		'
Amortization	18,659		28,782		'
Exploration	1,005		1,980		'
Write-downs	'		0		'
Other operating expenses	297		168		'
Interest and other income	-1,569		1,941		'
Interest expense, net	-2,824		-3,738		'
Fair value adjustments, net	-10,237		14,429		'
Income tax benefit (expense)	3,828		-3,534		'
Net income	-6,349		8,876		'
Assets, Net	1,152,913	[2]	'		1,900,071	[2]
Capital expenditures	3,742	[3]	5,314	[3]	'
San Bartolome [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Production costs applicable to sales	18,901		15,678		'
Amortization	4,457		4,640		'
Exploration	26		53		'
Write-downs	'		0		'
Other operating expenses	140		3,837		'
Interest and other income	682		605		'
Interest expense, net	-20		-32		'
Fair value adjustments, net	0		0		'
Income tax benefit (expense)	-2,764		-4,328		'
Net income	1,928		5,178		'
Assets, Net	285,072	[2]	'		303,761	[2]
Capital expenditures	1,441	[3]	457	[3]	'
Kensington [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	36,061		39,274		'
Royalties	0		0		'
Total Revenue	36,061		39,274		'
Production costs applicable to sales	28,531		23,565		'
Amortization	10,709		13,286		'
Exploration	1,044		672		'
Write-downs	'		0		'
Other operating expenses	191		176		'
Interest and other income	0		130		'
Interest expense, net	-22		-259		'
Fair value adjustments, net	0		4,227		'
Income tax benefit (expense)	0		0		'
Net income	-4,436		5,673		'
Assets, Net	332,563	[2]	'		498,762	[2]
Capital expenditures	4,711	[3]	3,330	[3]	'
Rochester [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	24,154		39,474		'
Royalties	0		0		'
Total Revenue	24,154		39,474		'
Production costs applicable to sales	14,708		20,777		'
Amortization	4,451		1,852		'
Exploration	1,174		484		'
Write-downs	'		0		'
Other operating expenses	1,345		473		'
Interest and other income	19		57		'
Interest expense, net	-4		-5		'
Fair value adjustments, net	-673		0		'
Income tax benefit (expense)	0		-725		'
Net income	1,818		15,215		'
Assets, Net	192,409	[2]	'		114,381	[2]
Capital expenditures	959	[3]	3,299	[3]	'
La Preciosa [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	0		0		'
Royalties	0		0		'
Total Revenue	0		0		'
Production costs applicable to sales	0		0		'
Amortization	17		0		'
Exploration	184		0		'
Write-downs	'		0		'
Other operating expenses	4,971		0		'
Interest and other income	-16		0		'
Interest expense, net	0		0		'
Fair value adjustments, net	0		0		'
Income tax benefit (expense)	-107		0		'
Net income	-5,295		0		'
Assets, Net	410,998	[2]	'		0	[2]
Capital expenditures	138	[3]	0	[3]	'
Coeur Capital [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	2,890		2,983		'
Royalties	986		0		'
Total Revenue	3,876		2,983		'
Production costs applicable to sales	1,182		1,321		'
Amortization	1,702		828		'
Exploration	203		308		'
Write-downs	'		0		'
Other operating expenses	241		-54		'
Interest and other income	-2,548		11		'
Interest expense, net	0		0		'
Fair value adjustments, net	0		0		'
Income tax benefit (expense)	-288		-54		'
Net income	-2,288		537		'
Assets, Net	67,173	[2]	'		32,311	[2]
Capital expenditures	0		0		'
Other Mining Properties [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	0		-501		'
Royalties	0		0		'
Total Revenue	0		-501		'
Production costs applicable to sales	0		0		'
Amortization	464		336		'
Exploration	581		3,344		'
Write-downs	'		119		'
Other operating expenses	13,695		10,824		'
Interest and other income	-1,139		1,077		'
Interest expense, net	-10,184		-5,698		'
Fair value adjustments, net	-526		-860		'
Income tax benefit (expense)	4,020		-2,604		'
Net income	-22,569		-23,209		'
Assets, Net	110,768		'		114,378
Capital expenditures	945		427		'
Total [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	158,647		171,797		'
Royalties	986		0		'
Total Revenue	159,633		171,797		'
Production costs applicable to sales	-106,896		-88,059		'
Amortization	-40,459		-49,724		'
Exploration	4,217		6,841		'
Other operating expenses	20,880		15,424		'
Interest and other income	-4,571		3,821		'
Interest expense, net	13,054		9,732		'
Fair value adjustments, net	-11,436		17,796		'
Income tax benefit (expense)	-4,689		11,245		'
Net income	-37,191		12,270		'
Assets, Net	2,551,896	[2]	'		2,963,664	[2]
Capital expenditures	11,936		12,827		'
Bolivia [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	27,554		33,141		'
Royalties	0		0		'
Total Revenue	27,554		33,141		'
Bolivia [Member] | San Bartolome [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Total Revenue	'		33,141		'
Mexico [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Total Revenue	68,511		57,426		'
Mexico [Member] | Palmarejo [Member]	'		'		'
Financial information relating to reporting segments	'		'		'
Metal sales	67,988		57,426		'
Royalties	0		0		'
Total Revenue	$67,988		$57,426		'
[1]	Excludes amortization.
[2]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjlhMDI3OWY3YWMxOTRiZDliYTc2YzYyODY4ZWI2ZWEzfFRleHRTZWxlY3Rpb246QjgzODNEMzNCRUVDMUNBMDA2OEFERkQ3M0EwOEUwQTIM}
[3]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjlhMDI3OWY3YWMxOTRiZDliYTc2YzYyODY4ZWI2ZWEzfFRleHRTZWxlY3Rpb246M0MyOERCNDE4MDhEQkJCNEJEQTlERkQ3M0EwODM5NzcM}

Segment_Reporting_Details_1

Segment Reporting (Details 1) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Segment Reporting [Abstract]	'	'	'	'
Assets, Net	'	$2,558,819	'	'
Assets	'	'	'	'
Cash and cash equivalents	272,932	206,690	331,311	125,440
Short term investments	45,628	0	'	'
Other assets	116,529	120,469	'	'
TOTAL ASSETS	$2,986,985	$2,885,978	'	'

Segment_Reporting_Details_2

Segment Reporting (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Long Lived Assets	'	'	'
Entity Wide Disclosure on Geographic Areas Long Lived Assets in Entity's Country of Domicile and Foreign Countries	$2,217,311	'	$2,237,774
Revenues	'	'	'
Total Revenue	159,633	171,797	'
United States [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	378,459	'	384,626
Revenues	'	'	'
Total Revenue	60,215	78,748	'
Australia [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	24,715	'	25,668
Revenues	'	'	'
Total Revenue	2,889	2,983	'
Argentina [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	94,558	'	94,705
Bolivia [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	231,336	'	235,085
Revenues	'	'	'
Total Revenue	27,554	33,141	'
Mexico [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	1,472,092	'	1,487,228
Revenues	'	'	'
Total Revenue	68,511	57,426	'
Other Foreign Countries [Member]	'	'	'
Long Lived Assets	'	'	'
Long Lived Assets in Entity's Country of Domicile	16,151	'	10,462
Revenues	'	'	'
Total Revenue	$464	($501)	'

Reclamation_Details

Reclamation (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Asset retirement obligation	'	'	'
Asset retirement obligation - Beginning	$57,454,000	'	$34,457,000
Accretion	1,317,000	3,442,000	'
Addition and changes in estimates	0	20,236,000	'
Settlements	-311,000	-681,000	'
Asset retirement obligation - December 31	58,460,000	57,454,000	34,457,000
Reclamation and Mine Closure (Textual) [Abstract]	'	'	'
Accrued reclamation liabilities	$900,000	$1,000,000	'

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
January 17, 2014 [Member] | Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Restricted stock and Performance shares, grants in period (in shares)	243,351
Granted date fair value of Restricted and Performance shares (in dollars per share)	$11.12
January 17, 2014 [Member] | Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock options, grants in period (in shares)	32,417
Granted date fair value of stock options (in dollars per share)	$4.39
January 17, 2014 [Member] | Performance Shares [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Restricted stock and Performance shares, grants in period (in shares)	345,833
Granted date fair value of Restricted and Performance shares (in dollars per share)	$12.65
March 26, 2014 [Member] | Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Restricted stock and Performance shares, grants in period (in shares)	435,208
Granted date fair value of Restricted and Performance shares (in dollars per share)	$9.31
March 26, 2014 [Member] | Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Stock options, grants in period (in shares)	382,755
Granted date fair value of stock options (in dollars per share)	$3.74
March 26, 2014 [Member] | Performance Shares [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Restricted stock and Performance shares, grants in period (in shares)	0
Granted date fair value of Restricted and Performance shares (in dollars per share)	$0

StockBased_Compensation_Detail1

Stock-Based Compensation (Details 1) (USD $)	3 Months Ended
	Mar. 31, 2014
Stock Options [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of exercised units (in shares)	0
Weighted average exercised price (in dollars per share)	$0
Number of exercisable units (in shares)	233,473
Weighted average exercisable price (in dollars price)	$30.01
Stock Appreciation Rights (SARs) [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of exercised units (in shares)	0
Weighted average exercised price (in dollars per share)	$0
Number of exercisable units (in shares)	50,209
Weighted average exercisable price (in dollars price)	$14.15

StockBased_Compensation_Detail2

Stock-Based Compensation (Details Textual) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unrecognized stock-based compensation cost	$14.10	'
Unrecognized stock-based compensation cost, weighted-average period recognized	'1 year 10 months 12 days	'
Annual Incentive Plan and Long Term Incentive Plan [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Compensation expense for stock based compensation awards	$2.60	$1.10

Retirement_Savings_Plan_Detail

Retirement Savings Plan (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Postemployment Benefits [Abstract]	'	'
Percentage of employee compensation plus matching contribution	100.00%	'
Percentage of maximum limit for employees to contribute their cash compensation	75.00%	'
Percentage of employee contribution	4.00%	'
Total plan expenses	$1.40	$1.30

Income_and_Mining_Taxes_Detail

Income and Mining Taxes (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income tax provision from continuing operations	'	'
Income tax provision from continuing operations	$4,689	($11,245)
United States - Alternative minimum tax [Member]	'	'
Income tax provision from continuing operations	'	'
Federal tax expense (benefit)	-146	-3,212
Argentina [Member]	'	'
Income tax provision from continuing operations	'	'
Foreign tax expense (benefit)	4,432	73
Australia [Member]	'	'
Income tax provision from continuing operations	'	'
Foreign tax expense (benefit)	-303	-105
Mexico [Member]	'	'
Income tax provision from continuing operations	'	'
Foreign tax expense (benefit)	3,721	-3,673
Bolivia [Member]	'	'
Income tax provision from continuing operations	'	'
Foreign tax expense (benefit)	-2,764	-4,328
Canada [Member]	'	'
Income tax provision from continuing operations	'	'
Foreign tax expense (benefit)	($251)	$0

Income_and_Mining_Taxes_Detail1

Income and Mining Taxes (Details Textual) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Income Taxes (Textual) [Abstract]	'	'
Income tax expense (benefit)	($4,689)	$11,245

Net_Income_Loss_Per_Share_Deta

Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended				3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
			Convertible Senior Notes Due March 2028 [Member]	Convertible Senior Notes Due March 2028 [Member]	Stock Options [Member]	Stock Options [Member]
Earnings Per Share (Textual) [Abstract]	'	'	'	'	'	'
Number of shares of common stock equivalents related to convertible debt	'	'	'	'	2,071,279	780,421
Debt Instrument, Interest Rate, Stated Percentage	'	'	3.25%	3.25%	'	'
Basic EPS	'	'	'	'	'	'
Net income (loss) available to common stockholders	($37,191)	$12,270	'	'	'	'
Weighted average shares	'	'	'	'	'	'
Basic (in shares)	102,365,000	89,948,000	'	'	'	'
Effect of share based compensation plans (in shares)	0	88,000	'	'	'	'
Diluted (in shares)	102,365,000	90,036,000	'	'	'	'
Income (loss) per share	'	'	'	'	'	'
Basic (in dollars per share)	($0.36)	$0.14	'	'	'	'
Diluted (in dollars per share)	($0.36)	$0.14	'	'	'	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	($11,436)	$17,796
Embedded Derivative Financial Instruments [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	-4,019	23,534
Palmarejo royalty obligation [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	-6,218	-9,105
Rochester Royalty Obligation [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	-673	0
Gold Put Purchase and Call Sold Options Net [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	-1,494	4,227
Foreign Exchange Contract [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Gain (Loss) on Derivative Instruments, Net, Pretax	$968	($860)

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 1) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Total assets	$62,524	$14,656
Liabilities:	'	'
Total liabilities	66,886	63,558
Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	44,357	40,338
Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	22,303	'
Rochester Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	21,630
Other Derivative Instrument [Member]	'	'
Assets:	'	'
Fair value of derivative asset	258	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	1,590
Gold Put Purchase and Call Sold Options Net [Member]	'	'
Assets:	'	'
Fair value of derivative asset	992	'
Liabilities:	'	'
Derivative fair value of derivative liability	226	'
Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	45,628	14,521
Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	15,646	135
Fair Value, Inputs, Level 1 [Member]	'	'
Assets:	'	'
Total assets	61,274	14,521
Liabilities:	'	'
Total liabilities	0	0
Fair Value, Inputs, Level 1 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	0
Fair Value, Inputs, Level 1 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	'
Fair Value, Inputs, Level 1 [Member] | Rochester Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	0
Fair Value, Inputs, Level 1 [Member] | Other Derivative Instrument [Member]	'	'
Assets:	'	'
Fair value of derivative asset	0	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	0
Fair Value, Inputs, Level 1 [Member] | Gold Put Purchase and Call Sold Options Net [Member]	'	'
Assets:	'	'
Fair value of derivative asset	0	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	'
Fair Value, Inputs, Level 1 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	45,628	14,521
Fair Value, Inputs, Level 1 [Member] | Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	15,646	0
Fair Value, Inputs, Level 2 [Member]	'	'
Assets:	'	'
Total assets	1,250	135
Liabilities:	'	'
Total liabilities	226	1,590
Fair Value, Inputs, Level 2 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	0
Fair Value, Inputs, Level 2 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	'
Fair Value, Inputs, Level 2 [Member] | Rochester Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	0
Fair Value, Inputs, Level 2 [Member] | Other Derivative Instrument [Member]	'	'
Assets:	'	'
Fair value of derivative asset	258	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	1,590
Fair Value, Inputs, Level 2 [Member] | Gold Put Purchase and Call Sold Options Net [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	226	'
Fair Value, Inputs, Level 2 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	0	0
Fair Value, Inputs, Level 2 [Member] | Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	0	135
Fair Value, Inputs, Level 3 [Member]	'	'
Assets:	'	'
Total assets	0	0
Liabilities:	'	'
Total liabilities	66,660	61,968
Fair Value, Inputs, Level 3 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	44,357	40,338
Fair Value, Inputs, Level 3 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	22,303	'
Fair Value, Inputs, Level 3 [Member] | Rochester Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	21,630
Fair Value, Inputs, Level 3 [Member] | Other Derivative Instrument [Member]	'	'
Assets:	'	'
Fair value of derivative asset	0	'
Liabilities:	'	'
Derivative fair value of derivative liability	'	0
Fair Value, Inputs, Level 3 [Member] | Gold Put Purchase and Call Sold Options Net [Member]	'	'
Assets:	'	'
Fair value of derivative asset	0	'
Liabilities:	'	'
Derivative fair value of derivative liability	0	'
Fair Value, Inputs, Level 3 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	0	0
Fair Value, Inputs, Level 3 [Member] | Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	$0	$0

Fair_Value_Measurements_Fair_V

Fair Value Measurements Fair Value Measurements (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Palmarejo Royalty Obligation [Member]	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'
Balance at the beginning of the period	$40,338
Revaluation	4,019
Balance at the end of the period	44,357
Rochester Royalty Obligation [Member]	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'
Balance at the beginning of the period	21,630
Revaluation	673
Balance at the end of the period	$22,303

Fair_Value_Measurements_Fair_V1

Fair Value Measurements Fair Value Measurements (Details 3) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2013
	Property, Plant and Equipment [Member]	Property, Plant and Equipment [Member]	Mining Properties [Member]	Mining Properties [Member]	Other Derivative Instrument [Member]	Other Derivative Instrument [Member]
	Minimum [Member]	Maximum [Member]	Minimum [Member]	Maximum [Member]		Fair Value, Inputs, Level 3 [Member]
	Discounted Cash Flow [Member]	Discounted Cash Flow [Member]	Discounted Cash Flow [Member]	Discounted Cash Flow [Member]
	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'	'	'	'	'	'
Derivative fair value of derivative liability	'	'	'	'	$1,590	$0
Discount Rate	8.50%	10.50%	8.50%	10.50%	'	'

Fair_Value_Measurements_Fair_V2

Fair Value Measurements Fair Value Measurements (Details 4) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Convertible Senior Notes Due March 2028 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	$5,281	$5,067
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Convertible Senior Notes Due March 2028 [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	0	5,067
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Convertible Senior Notes Due March 2028 [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	5,281	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Convertible Senior Notes Due March 2028 [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	0	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Senior Notes due 2021 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair value of long-term debt	454,127	307,314
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair value of long-term debt	0	307,314
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair value of long-term debt	454,127	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair value of long-term debt	0	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Palmarejo gold production royalty [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	57,377	65,212
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Palmarejo gold production royalty [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	0	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Palmarejo gold production royalty [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	0	0
Portion at Other than Fair Value, Fair Value Disclosure [Member] | Palmarejo gold production royalty [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	57,377	65,212
Reported Value Measurement [Member] | Convertible Senior Notes Due March 2028 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	5,334	5,334
Reported Value Measurement [Member] | Senior Notes due 2021 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Fair value of long-term debt	452,964	300,000
Reported Value Measurement [Member] | Palmarejo gold production royalty [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	$45,980	$51,193

Fair_Value_Measurements_Fair_V3

Fair Value Measurements Fair Value Measurements (Details Textual)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Jan. 29, 2013	Mar. 31, 2014	Mar. 31, 2014
	Convertible Senior Notes Due March 2028 [Member]	Convertible Senior Notes Due March 2028 [Member]	Senior Notes due 2021 [Member]	Senior Notes due 2021 [Member]	Palmarejo [Member]	Rochester [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'
Expected Royalty Duration, Rochester	'	'	'	'	'2 years 3 months	'4 years 11 months
Debt Instrument, Interest Rate, Stated Percentage	3.25%	3.25%	7.88%	7.88%	'	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Details)

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

USD ($)

USD ($)

oz

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Silver concentrate sales agreements [Member]

Silver concentrate sales agreements [Member]

Silver concentrate sales agreements [Member]

Silver concentrate sales agreements [Member]

Silver concentrate sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold put options purchased [Member]

Gold put options purchased [Member]

Gold put options purchased [Member]

Gold put options purchased [Member]

Gold call options sold [Member]

Gold call options sold [Member]

Silver put options purchased [Member]

Silver put options purchased [Member]

Silver put options purchased [Member]

Silver put options purchased [Member]

Silver Put Options Sold [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Line of Credit [Member]

Line of Credit [Member]

Line of Credit [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2014 [Member]

2015 [Member]

2015 [Member]

Thereafter [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2014 [Member]

2015 [Member]

2015 [Member]

Thereafter [Member]

Thereafter [Member]

2013 [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2014 [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

2013 [Member]

2013 [Member]

Put Option [Member]

Put Option [Member]

Put Option [Member]

USD ($)

USD ($)

USD ($)

USD ($)

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

USD ($)

oz

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

oz

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

MXN

2013 [Member]

2013 [Member]

USD ($)

MXN

oz

Gold put options purchased [Member]

Silver put options purchased [Member]

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

oz

USD ($)

MXN

2013 [Member]

2013 [Member]

USD ($)

USD ($)

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) on Derivative Instruments, Net, Pretax

($11,436,000)

$17,796,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative instruments Settlement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, notional amount

'

'

'

21,708,000

24,764,000

14,860,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,041,000

'

0

0

0

24,204,000

'

0

0

0

60,000,000

0

0

0

-52,500,000

'

45,000,000

0

0

0

-40,000,000

45,000,000

'

'

'

'

'

'

'

'

Weighted Average Call Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18

Weighted Average Put Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,200

'

Derivative average gold price in excess of minimum contractual Deduction Rate

408

'

'

498

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional ounces

'

'

'

43,602

50,153

30,348

0

524,300,000

0

0

0

0

0

0

439,600,000

0

0

0

0

0

0

'

'

0

0

0

'

'

0

0

0

50,000

0

0

0

'

'

2,500,000

0

0

0

'

'

'

'

'

'

'

'

'

'

Foreign exchange contracts of MXP

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,000,000

'

35,000,000

'

35,000,000

'

'

'

'

Fair value of foreign exchange contracts

'

'

'

'

'

'

'

'

$0

'

$0

'

$0

'

'

$0

'

$0

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average rate (MXP/$)

'

'

'

'

'

'

'

'

'

0

'

0

'

0

'

'

0

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

14.8

'

12.56

'

14.98

'

'

'

Derivative average price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.47

20.98

0

0

0

1,310

1,259

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding Provisionally Priced Sales Consists of Gold

'

'

30,780

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,471

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding Provisionally Priced Sales Consists of Silver

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

148,594

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

0

'

'

'

0

0

0

'

'

'

'

'

'

'

'

'

'

Weighted Average Strike Price of Put Options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,050

'

'

'

'

16

'

'

'

'

'

'

'

'

'

Outstanding Put Options of Gold

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50,000

'

'

'

'

'

'

'

'

'

'

'

25,000

'

'

Outstanding Put Options of Silver

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,500,000

'

'

'

'

'

'

1,250,000

'

'

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Details 1) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	$1,592	$184
Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	568	1,640
Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	20,747	17,650
Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	23,610	22,688
Forward foreign exchange contracts [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	67	38
Forward foreign exchange contracts [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	7	947
Forward foreign exchange contracts [Member] | Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Forward foreign exchange contracts [Member] | Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Palmarejo gold production royalty [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	'	'
Palmarejo gold production royalty [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Palmarejo gold production royalty [Member] | Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	20,747	17,650
Palmarejo gold production royalty [Member] | Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	23,610	22,688
Put and call options, net [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	992	'
Derivative Liability, Fair Value	226	'
Put and call options, net [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	992	135
Put and call options, net [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	226	'
Put and call options, net [Member] | Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Put and call options, net [Member] | Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Concentrate sales contracts [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Fair value of derivative asset	533	11
Concentrate sales contracts [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	335	693
Concentrate sales contracts [Member] | Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Concentrate sales contracts [Member] | Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
Mexican peso forward purchase contracts [Member] | Forward foreign exchange contracts [Member]	'	'
Derivatives, Fair Value [Line Items]	'	'
Foreign exchange contracts of MXP	'	$12,000

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value adjustments, net	($11,436)	$17,796
Fair value adjustments, net	-10,808	16,669
Mexican peso forward purchase contracts [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value adjustments, net	968	738
Concentrate Sales Contracts [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Sales of Metals	879	-1,755
Forward foreign exchange contract [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Production costs applicable to sales	-924	627
Fair value adjustments, net	968	-860
Forward Contracts [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value adjustments, net	0	-1,598
Palmarejo gold production royalty [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value adjustments, net	-10,237	14,429
Put and call options [Member]	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'
Fair value adjustments, net	($1,494)	$4,228

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Details Textual)

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Jan. 21, 2009

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

USD ($)

oz

Put Option [Member]

Franco-Nevada warrant [Member]

Franco-Nevada warrant [Member]

Franco-Nevada warrant [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Gold Put Purchase and Call Sold Options Net [Member]

Commodity [Member]

Commodity [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Maximum [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year One [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Derivative Instruments Settle in Year Two [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

Prepaid Expenses and Other Current Assets [Member]

USD ($)

USD ($)

USD ($)

oz

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

USD ($)

USD ($)

USD ($)

Gold Put Option [Member]

Put Option on Silver [Member]

Palmarejo gold production royalty [Member]

Gold call options sold [Member]

Silver concentrate sales agreements [Member]

Silver concentrate sales agreements [Member]

Gold concentrates sales agreements [Member]

Gold concentrates sales agreements [Member]

Mexico Peso Put Options [Member]

Gold put options purchased [Member]

Silver put options purchased [Member]

Mexico Peso Call Options [Member]

Mexico Peso Call Options [Member]

Mexico Peso Put Options [Member]

Mexico Peso Put Options [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Gold call options sold [Member]

Silver concentrate sales agreements [Member]

Gold concentrates sales agreements [Member]

Mexico Peso Put Options [Member]

Gold put options purchased [Member]

Silver put options purchased [Member]

Silver Put Options Sold [Member]

USD ($)

USD ($)

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Gold Put Purchase and Call Sold Options Net [Member]

Gold Put Purchase and Call Sold Options Net [Member]

USD ($)

USD ($)

USD ($)

MXN

Put Option [Member]

Put Option [Member]

oz

USD ($)

USD ($)

oz

USD ($)

oz

USD ($)

USD ($)

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

USD ($)

MXN

Gold put options purchased [Member]

Silver put options purchased [Member]

USD ($)

USD ($)

MXN

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

oz

oz

oz

oz

USD ($)

MXN

Put Option [Member]

Put Option [Member]

oz

oz

oz

oz

oz

USD ($)

USD ($)

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Strike Price of Put Options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,150

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,050

'

'

'

'

'

16

'

'

'

'

'

'

'

'

Fair Value, Asian Put Options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$800,000

'

Additional Derivative Financial Instruments and Fair Value of Financial Instruments (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Life of Mine Production, Percentage

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payment made for gold on the end of royalty obligation

'

'

'

'

'

'

'

4,167

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Guarantees, Commitments, Ounces of Gold

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total gold remain outstanding

'

'

'

'

'

'

'

124,103

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Assumptions, Risk Free Interest Rate

6.08%

4.20%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value liability of the embedded derivative

'

'

'

'

44,400,000

'

40,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Company recognized Mark to Market loss

'

'

'

'

-4,000,000

23,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Gold Production

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Average Gold Price in Excess of Minimum Contractual Deduction Rate

408

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual Inflation Compounding Adjustment

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Realized losses

'

'

'

'

6,200,000

9,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign exchange contracts of MXP

'

'

'

'

'

'

'

'

'

'

'

12,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35,000,000

'

35,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average exchange rate

'

'

'

'

'

'

'

'

'

'

12.21

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average exchange rate of MXP

'

'

'

'

'

'

'

'

'

'

'

'

14.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12.56

'

14.98

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

Fair value of foreign exchange contracts

'

'

'

'

'

'

'

'

'

100,000

'

900

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Average Exchange Rate Floor

'

'

'

'

'

'

'

'

'

'

'

12.6

12.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Notional Amount

'

'

'

'

'

'

'

'

'

'

'

45,000,000

'

'

'

'

'

'

'

-52,500,000

3,041,000

'

24,204,000

'

'

60,000,000

45,000,000

'

'

'

'

'

'

'

0

0

'

0

0

-40,000,000

'

'

'

'

'

'

'

'

Mark-to-market gains and (losses) on forward foreign exchange contract

'

'

'

'

'

'

'

'

'

-900,000

600,000

'

'

'

300,000

-500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liability, Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

226,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Call Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Put Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,200

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contract expiration date

'

'

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional ounces

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

524,300,000

50,000

2,500,000

'

'

'

'

'

'

'

0

0

0

0

0

'

'

'

'

'

'

'

'

'

Average strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

Unrealized gain (loss)

'

'

'

'

'

'

'

'

'

1,000,000

700,000

'

'

'

-1,500,000

4,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of the contract

'

'

'

'

'

'

'

'

'

'

'

'

'

$992,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$1,592,000

$184,000

'

'

$67,000

$38,000

$992,000

$135,000

Derivative Financial Instruments and Fair Value of Financial Instruments (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding provisionally priced sales consists of silver

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

148,594

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding provisionally priced sales consists of Gold

'

'

30,780

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

18,471

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Average Price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.47

20.98

1,310

1,259

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

Investments_Details

Investments (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
			Short-term Investments [Member]	Marketable securities [Member]	Marketable securities [Member]
Schedule of Available-for-sale Securities [Line Items]	'	'	'	'	'
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	$600,000	'	'	'	'
Available-for-sale Securities	'	'	'	'	'
Cost	'	'	45,724,000	15,484,000	17,649,000
Gross Unrealized Losses	'	'	-96,000	-724,000	-3,300,000
Gross Unrealized Gains	'	'	0	886,000	172,000
Available-for-sale Securities, Estimated Fair Value	'	'	45,628,000	15,646,000	14,521,000
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'	'	'	'
Unrealized Losses Total	'	'	-96,000	-724,000	-3,300,000
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'	'	'	'
Less than twelve Months, Unrealized Losses	'	'	-96,000	0	'
Less than twelve Months, Fair Value	'	'	45,628,000	0	'
Twelve months or more, Unrealized Losses	'	'	0	-724,000	'
Twelve months or more, Fair Value	'	'	0	1,320,000	'
Unrealized Losses	'	'	-96,000	-724,000	'
Fair Value	'	'	45,628,000	1,320,000	'
Investment in Marketable Securities (Textual) [Abstract]	'	'	'	'	'
Unrealized gain (loss) on available for sale securities	371,000	-3,566,000	'	'	'
Impairment loss	$2,588,000	$35,000	'	'	'

Receivables_Details

Receivables (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Allowance for doubtful accounts	'	$0
Receivables - current portion	'	'
Accounts receivable - trade	10,679	17,303
Refundable income tax	7,856	6,240
Refundable value added tax	51,540	49,168
Accounts receivable - other	5,731	8,363
Receivables, net current portion	75,806	81,074
Receivables - non-current portion	'	'
Refundable value added tax	$36,271	$36,574

Metal_and_Other_Inventory_Deta

Metal and Other Inventory (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Inventories	'	'
Concentrate and dore inventory	$12,788	$14,855
Other Inventory, Net of Reserves	54,622	52,250
Supplies	66,168	64,918
Metal and other inventory	133,578	132,023
Ore on Leach Pad, Current	59,895	50,495
Ore on Leach Pad Non Current	34,485	31,528
Inventory, Ore Stockpiles on Leach Pads, Gross	94,380	82,023
Inventory and Ore on Leach Pads	$227,958	$214,046

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, plant and equipment	'	'
Land	$1,764	$1,764
Building improvements	870,251	855,318
Capitalized leases for machinery, equipment and buildings	9,015	16,133
Property, plant and equipment, gross	881,030	873,215
Accumulated depreciation and amortization	-411,446	-395,520
Property Plant and Equipment Net before Construction in Progress	469,584	477,695
Construction in Progress	7,253	8,578
Property, plant and equipment, net	$476,837	$486,273

Mining_Properties_Details

Mining Properties (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Mining Properties	'	'
Operational mining properties:	$648,140	$641,305
Accumulated depletion	-327,693	-315,541
Operational mining properties, net	320,447	325,764
Mineral interest	1,758,867	1,753,129
Accumulated depletion	-338,840	-327,392
Mineral interest, net	1,420,027	1,425,737
Total mining properties	1,740,474	1,751,501
Palmarejo [Member]	'	'
Mining Properties	'	'
Operational mining properties:	155,262	151,845
Accumulated depletion	-112,989	-110,143
Operational mining properties, net	42,273	41,702
Mineral interest	1,146,572	1,146,572
Accumulated depletion	-309,615	-300,187
Mineral interest, net	836,957	846,385
Total mining properties	879,230	888,087
San Bartolome [Member]	'	'
Mining Properties	'	'
Operational mining properties:	70,764	70,761
Accumulated depletion	-23,114	-22,236
Operational mining properties, net	47,650	48,525
Mineral interest	26,643	26,643
Accumulated depletion	-9,080	-8,759
Mineral interest, net	17,563	17,884
Total mining properties	65,213	66,409
Kensington [Member]	'	'
Mining Properties	'	'
Operational mining properties:	271,834	268,351
Accumulated depletion	-85,823	-80,032
Operational mining properties, net	186,011	188,319
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	186,011	188,319
Rochester [Member]	'	'
Mining Properties	'	'
Operational mining properties:	150,280	150,348
Accumulated depletion	-105,767	-103,130
Operational mining properties, net	44,513	47,218
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	44,513	47,218
Endeavor [Member]	'	'
Mining Properties	'	'
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	408,352	408,352
Accumulated depletion	0	0
Mineral interest, net	408,352	408,352
Total mining properties	408,352	408,352
Joaquin Project - Argentina [Member]	'	'
Mining Properties	'	'
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	93,429	93,429
Accumulated depletion	0	0
Mineral interest, net	93,429	93,429
Total mining properties	93,429	93,429
Other Mining Properties [Member]	'	'
Mining Properties	'	'
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	83,871	78,133
Accumulated depletion	-20,145	-18,446
Mineral interest, net	63,726	59,687
Total mining properties	$63,726	$59,687

Debt_Details

Debt (Details) (USD $)

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 12, 2014

Dec. 31, 2013

Jan. 29, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Feb. 12, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

oz

3.25% Convertible Senior Notes due March 2028 [Member]

Senior Notes due 2021 [Member]

Senior Notes due 2021 [Member]

Senior Notes due 2021 [Member]

Senior Notes due 2021 [Member]

Palmarejo gold production royalty [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Palmarejo gold production royalty [Member]

Maximum [Member]

Convertible Senior Notes Due March 2028 [Member]

Convertible Senior Notes Due March 2028 [Member]

Convertible Senior Notes Due March 2028 [Member]

Senior Notes due Two Thousand Twenty One [Member]

Senior Notes due Two Thousand Twenty One [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

oz

Palmarejo gold production royalty [Member]

oz

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Carrying Amount of Equity Component

'

'

'

$10,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Effective Percentage

'

'

'

'

'

'

'

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

Royalty Guarantees, Commitments, Ounces of Gold

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

'

'

'

'

'

'

Minimum Obligation Paid in Monthly Payments

'

'

'

'

'

'

'

'

'

'

'

4,167

'

'

'

'

'

'

'

'

Annual Inflation Compounding Adjustment

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

Percentage of Actual Gold Production

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Average Gold Price in Excess of Minimum Contractual Deduction Rate

408

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long term debt and capital lease obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current

8,095,000

'

2,505,000

'

'

'

'

'

'

'

'

'

'

5,334,000

0

48,700,000

0

0

2,761,000

2,505,000

Debt Instrument, Face Amount

'

'

'

'

450,000,000

150,000,000

'

300,000,000

'

'

'

'

'

0

5,334,000

'

'

'

'

'

Non-current

456,152,000

'

306,130,000

'

452,964,000

'

300,000,000

'

'

3,188,000

796,000

'

'

'

'

'

'

'

'

'

Payment of Royalty on Ounces of Gold

275,898

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Base Average Gold Price in Excess of Minimum Contractual Deduction Rate

400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest expenses incurred for various debt instruments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Paid on Senior Notes due 2021

6,464,000

4,134,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Paid on Convertible Notes due 2028

43,000

337,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Commitment Fee Amount

179,000

125,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Write off revolver costs, interest expense

3,035,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Paid on Capital Leases

59,000

168,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Expense

0

197,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of Franco Nevada royalty obligation

3,196,000

4,062,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of debt issuance costs

498,000

525,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of debt discount

-36,000

577,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized interest

-384,000

-393,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total interest expense, net of capitalized interest

$13,054,000

$9,732,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt_Details_Textual

Debt (Details Textual) (USD $)

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Jan. 21, 2009

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 12, 2014

Jan. 29, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Feb. 12, 2013

oz

Convertible Senior Notes Due March 2028 [Member]

Convertible Senior Notes Due March 2028 [Member]

Senior Notes due Two Thousand Twenty One [Member]

Senior Notes due Two Thousand Twenty One [Member]

Senior Notes due Two Thousand Twenty One [Member]

Banco Bisa Line of Credit [Member]

Banco de Credito Line of Credit [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

3.25% Convertible Senior Notes due March 2028 [Member]

3.25% Convertible Senior Notes due March 2028 [Member]

3.25% Convertible Senior Notes due March 2028 [Member]

oz

Maximum [Member]

oz

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ore on leach pads

$59,895,000

'

$50,495,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and capital lease obligations (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate on notes

'

'

'

'

3.25%

3.25%

7.88%

'

7.88%

'

'

'

'

'

'

3.25%

'

'

Debt Instrument, Face Amount

'

'

'

'

'

'

450,000,000

150,000,000

300,000,000

'

'

'

'

'

'

0

5,334,000

'

Debt

8,095,000

'

2,505,000

'

'

'

'

'

'

'

'

'

'

'

'

5,334,000

0

48,700,000

Debt Instrument, Repurchased Face Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

43,300,000

'

'

Interest Expense, Debt

0

197,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of debt discount

-36,000

577,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective interest rate on the notes

'

'

'

'

'

'

'

'

'

'

'

30.00%

'

'

'

'

'

'

Borrowing under term facility

100,000,000

'

'

'

'

'

'

'

'

7,000,000

4,000,000

'

'

'

'

'

'

'

Line of credit facility, increase, additional borrowings

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, commitment fee amount

179,000

125,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Interest Rate at Period End

'

'

'

'

'

'

'

'

'

3.00%

3.00%

'

'

'

'

'

'

'

Line of Credit Facility, Amount Outstanding

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on termination of revolving credit facility

3,035,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Expense

'

'

'

'

'

'

'

'

'

'

'

'

14,700,000

15,400,000

'

'

'

'

Sale Portion Life of Mine

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Guarantees, Commitments, Ounces of Gold

'

'

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

'

'

Royalty agreement minimum obligation for the period

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Agreement Minimum Obligation for Per Month

4,167

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Agreement Period

'

'

'

'8 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Actual Gold Production

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Base Average Gold Price in Excess of Minimum Contractual Deduction Rate

400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payment of Royalty on Ounces of Gold

275,898

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Further Payment Made on Number of Additional Ounces of Gold

'

'

'

'

'

'

'

'

'

'

'

'

124,103

'

'

'

'

'

Payments to Acquire Royalty Interests in Mining Properties

14,683,000

15,448,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional Long term debt and capital lease obligations(Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Implicit Interest Rate

30.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of Royalty Obligation

3,196,000

4,062,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining Minimum Obligation Under Royalty Agreements

46,000,000

'

51,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expensed Interest

13,054,000

9,732,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized interest

-384,000

-393,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Convertible, Carrying Amount of Equity Component

'

'

'

'

$10,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Supplemental_Guarantor_Informa2

Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013		Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 12, 2014	Jan. 29, 2013
				Coeur Mining, Inc.	Coeur Mining, Inc.	Guarantor Subsidiaries	Guarantor Subsidiaries	Non-Guarantor Subsidiaries	Non-Guarantor Subsidiaries	Eliminations	Eliminations	Senior Notes due Two Thousand Twenty One [Member]	Senior Notes due Two Thousand Twenty One [Member]	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	'	'		'	'	'	'	'	'	'	'	7.88%	'	7.88%
[1]	Excludes amortization.

Supplemental_Guarantor_Informa3

Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
			Coeur Mining, Inc.	Coeur Mining, Inc.	Guarantor Subsidiaries	Guarantor Subsidiaries	Non-Guarantor Subsidiaries	Non-Guarantor Subsidiaries	Eliminations	Eliminations
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'
Net Cash Provided by (Used in) Operating Activities	($9,627)	$12,934	($37,623)	$22,976	$4,932	$16,889	$10,082	$3,823	$12,982	($30,754)
Capital expenditures	-11,936	-12,827	-945	-428	-5,670	-6,626	-5,321	-5,773	0	0
Payments to Acquire Investments	-46,220	-4,649	-45,796	-1,598	-424	-16	0	-3,035	0	0
Payments for (Proceeds from) Investments	90	4,822	90	1,375	0	14	0	3,433	0	0
Proceeds from Discontinued Operations Sale of Assets and Other	-25	-10,610	0	-11,553	0	238	-25	705	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0	13,160	-30,754	-178	0	0	0	-12,982	30,754
Net Cash Provided by (Used in) Investing Activities	-58,091	-23,264	-33,491	-42,958	-6,272	-6,390	-5,346	-4,670	-12,982	30,754
Issuance of notes and bank borrowings	153,000	300,000	153,000	300,000	0	0	0	0	0	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	-4,111	-55,340	-3,196	-52,565	-412	-1,240	-503	-1,535	0	0
Payments to Acquire Royalty Interests in Mining Properties	-14,683	-15,448	0	0	0	0	-14,683	-15,448	0	0
Payments for Repurchase of Common Stock	0	-12,557	'	-12,557	'	0	'	0	'	0
Proceeds From Repayment Intercompany Borrowings	0	0	-11,475	7,355	1,515	-9,377	9,960	2,022	0	0
Proceeds from (Payments for) Other Financing Activities	-246	-454	-246	-454	0	0	0	0	0	0
Net Cash Provided by (Used in) Financing Activities	133,960	216,201	138,083	241,779	1,103	-10,617	-5,226	-14,961	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	66,242	205,871	66,969	221,797	-237	-118	-490	-15,808	0	0
Cash and Cash Equivalents, at Carrying Value	$272,932	$331,311	$204,045	$137,076	$754	$991	$68,133	$68,623	$0	$0

Supplemental_Guarantor_Informa4

Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) (USD $)	Mar. 31, 2014	Mar. 12, 2014	Dec. 31, 2013	Jan. 29, 2013
In Thousands, unless otherwise specified
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	$272,932	'	$206,690	'
Investments	45,628	'	0	'
Receivables	75,806	'	81,074	'
Ore on leach pads	59,895	'	50,495	'
Inventory	133,578	'	132,023	'
Deferred tax assets	34,998	'	35,008	'
Prepaid expenses and other	30,835	'	25,940	'
Assets, Current	653,672	'	531,230	'
Property, plant and equipment, net	476,837	'	486,273	'
Mining properties, net	1,740,474	'	1,751,501	'
Ore on leach pads	34,485	'	31,528	'
Restricted assets	7,426	'	7,014	'
Marketable securities	15,646	'	14,521	'
Receivables	36,271	'	36,574	'
Unamortized Debt Issuance Expense	11,356	'	10,812	'
Deferred tax assets	829	'	1,189	'
Other Assets, Noncurrent	9,989	'	15,336	'
Assets	2,986,985	'	2,885,978	'
Accounts payable	49,958	'	53,847	'
Accrued liabilities and other	29,861	'	38,266	'
Debt	8,095	'	2,505	'
Royalty obligations	50,250	'	48,019	'
Reclamation	762	'	913	'
Deferred tax liabilities	1,858	'	1,011	'
Liabilities, Current	140,784	'	144,561	'
Debt	456,152	'	306,130	'
Royalty obligations	62,390	'	65,142	'
Reclamation	58,630	'	57,515	'
Deferred tax liabilities	544,096	'	556,246	'
Other long-term liabilities	27,236	'	25,817	'
Intercompany Payable Receivable	0	'	0	'
Liabilities, Noncurrent	1,148,504	'	1,010,850	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	'	0	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	1,035	'	1,028	'
Additional paid-in capital	2,783,520	'	2,781,164	'
Accumulated deficit	-1,083,910	'	-1,046,719	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	-2,948	'	-4,906	'
Stockholders' Equity Attributable to Parent	1,697,697	'	1,730,567	'
Liabilities and Equity	2,986,985	'	2,885,978	'
Coeur Mining, Inc.	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	204,045	'	137,076	'
Investments	45,628	'	0	'
Receivables	102	'	530	'
Ore on leach pads	0	'	0	'
Inventory	0	'	0	'
Deferred tax assets	0	'	0	'
Prepaid expenses and other	3,729	'	4,128	'
Assets, Current	253,504	'	141,734	'
Property, plant and equipment, net	6,576	'	5,980	'
Mining properties, net	0	'	0	'
Ore on leach pads	0	'	0	'
Restricted assets	830	'	830	'
Marketable securities	0	'	0	'
Receivables	0	'	0	'
Unamortized Debt Issuance Expense	11,356	'	10,812	'
Deferred tax assets	955	'	955	'
Other Assets, Noncurrent	54,521	'	53,858	'
Assets	1,559,108	'	1,456,649	'
Accounts payable	1,301	'	1,963	'
Accrued liabilities and other	9,811	'	16,693	'
Debt	5,334	'	0	'
Royalty obligations	0	'	0	'
Reclamation	0	'	0	'
Deferred tax liabilities	0	'	0	'
Liabilities, Current	16,446	'	18,656	'
Debt	452,964	'	305,335	'
Royalty obligations	0	'	0	'
Reclamation	0	'	0	'
Deferred tax liabilities	37,096	'	37,095	'
Other long-term liabilities	2,634	'	2,467	'
Intercompany Payable Receivable	-647,729	'	-637,471	'
Liabilities, Noncurrent	-155,035	'	-292,574	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,231,366	'	1,242,480	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	1,035	'	1,028	'
Additional paid-in capital	2,783,520	'	2,781,164	'
Accumulated deficit	-1,083,910	'	-1,046,719	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	-2,948	'	-4,906	'
Stockholders' Equity Attributable to Parent	1,697,697	'	1,730,567	'
Liabilities and Equity	1,559,108	'	1,456,649	'
Guarantor Subsidiaries	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	754	'	991	'
Investments	0	'	0	'
Receivables	13,121	'	19,982	'
Ore on leach pads	59,895	'	50,495	'
Inventory	37,386	'	35,290	'
Deferred tax assets	0	'	0	'
Prepaid expenses and other	9,449	'	5,282	'
Assets, Current	120,605	'	112,040	'
Property, plant and equipment, net	141,364	'	143,118	'
Mining properties, net	236,130	'	235,537	'
Ore on leach pads	34,485	'	31,528	'
Restricted assets	50	'	50	'
Marketable securities	15,646	'	14,521	'
Receivables	0	'	0	'
Unamortized Debt Issuance Expense	0	'	0	'
Deferred tax assets	'	'	0	'
Other Assets, Noncurrent	31,372	'	14,616	'
Assets	603,854	'	597,625	'
Accounts payable	17,840	'	15,864	'
Accrued liabilities and other	7,904	'	8,016	'
Debt	1,903	'	1,262	'
Royalty obligations	4,951	'	3,934	'
Reclamation	0	'	0	'
Deferred tax liabilities	847	'	0	'
Liabilities, Current	33,445	'	29,076	'
Debt	2,765	'	255	'
Royalty obligations	17,352	'	17,696	'
Reclamation	46,627	'	45,894	'
Deferred tax liabilities	1,618	'	1,618	'
Other long-term liabilities	518	'	544	'
Intercompany Payable Receivable	428,962	'	427,085	'
Liabilities, Noncurrent	497,842	'	493,092	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	24,202	'	46,215	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	250	'	250	'
Additional paid-in capital	79,712	'	79,712	'
Accumulated deficit	-4,544	'	401	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	-2,851	'	-4,906	'
Stockholders' Equity Attributable to Parent	72,567	'	75,457	'
Liabilities and Equity	603,854	'	597,625	'
Non-Guarantor Subsidiaries	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	68,133	'	68,623	'
Investments	0	'	0	'
Receivables	62,583	'	60,562	'
Ore on leach pads	0	'	0	'
Inventory	96,192	'	96,733	'
Deferred tax assets	34,998	'	35,008	'
Prepaid expenses and other	17,657	'	16,530	'
Assets, Current	279,563	'	277,456	'
Property, plant and equipment, net	328,897	'	337,175	'
Mining properties, net	1,504,344	'	1,515,964	'
Ore on leach pads	0	'	0	'
Restricted assets	6,546	'	6,134	'
Marketable securities	0	'	0	'
Receivables	36,271	'	36,574	'
Unamortized Debt Issuance Expense	0	'	0	'
Deferred tax assets	-126	'	234	'
Other Assets, Noncurrent	324,489	'	320,425	'
Assets	4,080,974	'	4,072,761	'
Accounts payable	30,817	'	36,020	'
Accrued liabilities and other	13,214	'	14,611	'
Debt	335,137	'	309,472	'
Royalty obligations	45,299	'	44,085	'
Reclamation	643	'	794	'
Deferred tax liabilities	1,011	'	1,011	'
Liabilities, Current	426,121	'	405,993	'
Debt	65,469	'	64,820	'
Royalty obligations	45,038	'	47,446	'
Reclamation	12,122	'	11,740	'
Deferred tax liabilities	505,382	'	517,533	'
Other long-term liabilities	24,084	'	22,806	'
Intercompany Payable Receivable	218,767	'	210,386	'
Liabilities, Noncurrent	870,862	'	874,731	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,600,990	'	1,578,799	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	122,666	'	122,666	'
Additional paid-in capital	3,258,037	'	3,258,037	'
Accumulated deficit	-596,712	'	-588,666	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	'	0	'
Stockholders' Equity Attributable to Parent	2,783,991	'	2,792,037	'
Liabilities and Equity	4,080,974	'	4,072,761	'
Eliminations	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and cash equivalents	0	'	0	'
Investments	0	'	0	'
Receivables	0	'	0	'
Ore on leach pads	0	'	0	'
Inventory	0	'	0	'
Deferred tax assets	0	'	0	'
Prepaid expenses and other	0	'	0	'
Assets, Current	0	'	0	'
Property, plant and equipment, net	0	'	0	'
Mining properties, net	0	'	0	'
Ore on leach pads	0	'	0	'
Restricted assets	0	'	0	'
Marketable securities	0	'	0	'
Receivables	0	'	0	'
Unamortized Debt Issuance Expense	0	'	0	'
Deferred tax assets	0	'	0	'
Other Assets, Noncurrent	-400,393	'	-373,563	'
Assets	-3,256,951	'	-3,241,057	'
Accounts payable	0	'	0	'
Accrued liabilities and other	-1,068	'	-1,054	'
Debt	-334,279	'	-308,229	'
Royalty obligations	0	'	0	'
Reclamation	119	'	119	'
Deferred tax liabilities	0	'	0	'
Liabilities, Current	-335,228	'	-309,164	'
Debt	-65,046	'	-64,280	'
Royalty obligations	0	'	0	'
Reclamation	-119	'	-119	'
Deferred tax liabilities	0	'	0	'
Other long-term liabilities	0	'	0	'
Intercompany Payable Receivable	0	'	0	'
Liabilities, Noncurrent	-65,165	'	-64,399	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	-2,856,558	'	-2,867,494	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,584,671 at March 31, 2014 and 102,843,003 at December 31, 2013	-122,916	'	-122,916	'
Additional paid-in capital	-3,337,749	'	-3,337,749	'
Accumulated deficit	601,256	'	588,265	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	2,851	'	4,906	'
Stockholders' Equity Attributable to Parent	-2,856,558	'	-2,867,494	'
Liabilities and Equity	-3,256,951	'	-3,241,057	'
Senior Notes due Two Thousand Twenty One [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Debt Instrument, Face Amount	450,000	150,000	'	300,000
Debt	452,964	'	300,000	'
Debt Instrument, Interest Rate, Stated Percentage	7.88%	'	'	7.88%
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Marketable securities	$15,646	'	'	'

Commitments_and_Contigencies_D

Commitments and Contigencies (Details Textual) (USD $)

3 Months Ended

3 Months Ended

3 Months Ended

0 Months Ended

1 Months Ended

Mar. 31, 2014

Jun. 30, 2013

Oct. 14, 2009

Jan. 21, 2009

Mar. 31, 2014

Mar. 31, 2013

Jul. 07, 1995

Mar. 31, 2014

Jul. 07, 1995

Jul. 07, 1995

Jun. 05, 2012

Feb. 28, 2010

oz

m

Rochester [Member]

Rochester [Member]

Echo Bay [Member]

Kensington [Member]

Kensington [Member]

Coeur Alaska Inc [Member]

Hazardous Waste On-Site [Member]

Hazardous Waste On-Site [Member]

oz

Callahan Mining Corporation [Member]

Callahan Mining Corporation [Member]

defendant

Commitment and Contingencies (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition of ownership interest

'

'

'

'

'

'

50.00%

'

100.00%

'

'

'

Volume related to net smelter return royalty of future gold production

'

'

'

'

'

'

1,000,000

'

'

'

'

'

Purchase price and construction and development expenses

'

'

'

'

'

'

'

'

'

$32,500,000

'

'

Minimum royalty range for gold price per ounce

'

'

'

'

'

'

'

1.00%

'

'

'

'

Gold price per ounce for minimum royalty range

'

'

'

'

'

'

'

400

'

'

'

'

Maximum royalty range for gold price per ounce

'

'

'

'

5.00%

'

'

2.50%

'

'

'

'

Maximum royalty payable

'

'

'

'

250,000

'

'

'

'

'

'

'

Gold price per ounce for maximum royalty range

'

'

'

'

23.6

'

'

475

'

'

'

'

Royalty expenses

'

'

'

'

0

1,000,000

'

'

'

'

'

'

Litigation Settlement, Amount

'

'

'

'

'

'

'

'

'

'

'

3,500,000

Number of defendants

'

'

'

'

'

'

'

'

'

'

5

'

Maximum Height for Temporary Restriction on Mining

'

'

4,400

'

'

'

'

'

'

'

'

'

NSR royalty percentage

'

3.40%

'

'

'

'

'

'

'

'

'

'

NSR royalty maximum amount

'

$39,400,000

'

'

'

'

'

'

'

'

'

'

Number of labor agreements in South America

1

'

'

'

'

'

'

'

'

'

'

'

Percentage of labor force covered by collective bargaining agreements

9.90%

'

'

'

'

'

'

'

'

'

'

'

Royalty to be capped in terms of ounces of production

1,000,000

'

'

'

'

'

'

'

'

'

'

'

Purchased royalty

'

'

'

50.00%

'

'

'

'

'

'

'

'

Royalty agreement minimum obligation for the period

400,000

'

'

'

'

'

'

'

'

'

'

'

Royalty Agreement Minimum Obligation for Per Month

4,167

'

'

'

'

'

'

'

'

'

'

'

Royalty Agreement Period

'

'

'

'8 years

'

'

'

'

'

'

'

'