Coeur Mining (CDE) 10-K 26 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 21, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Coeur Mining, Inc.	'
Entity Central Index Key	'0000215466	'
Document Type	'10-K	'
Document Period End Date	31-Dec-13	'
Amendment Flag	'false	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'FY	'
Trading Symbol	'CDE	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	103,100,303
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Public Float	'	$1,347,701,848

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Other Comprehensive Income [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Sales of metal	$168,847	$200,825	$204,525	$171,797	$205,929	$230,593	$254,406	$204,564	$745,994	$895,492	$1,021,200
Production costs applicable to sales	-100,227	-131,728	-142,924	-88,784	-106,473	-124,365	-131,182	-92,542	-463,663	-454,562	-419,547
Amortization	-63,916	-60,874	-57,653	-50,436	-52,397	-52,844	-61,024	-52,592	-232,879	-218,857	-224,500
Gross profit	'	'	'	'	'	'	'	'	49,452	222,073	377,153
COSTS AND EXPENSES	'	'	'	'	'	'	'	'	'	'	'
Administrative and general	'	'	'	'	'	'	'	'	55,343	32,977	31,379
Exploration	5,440	3,305	6,774	6,841	6,441	6,957	6,305	6,567	22,360	26,270	19,128
Litigation settlement	'	'	-32,000	'	'	'	'	'	32,046	0	0
Write-downs	'	'	'	'	'	'	'	'	772,993	5,825	0
Pre-development, care, maintenance and other	'	'	'	'	'	'	'	'	11,869	1,261	19,441
Total cost and expenses	'	'	'	'	'	'	'	'	894,611	66,333	69,948
OPERATING INCOME	'	'	'	'	'	'	'	'	-845,159	155,740	307,205
OTHER INCOME AND EXPENSE	'	'	'	'	'	'	'	'	'	'	'
Loss on debt extinguishments	'	'	'	'	'	'	'	'	0	-1,036	-5,526
Fair value adjustments, net	'	'	'	'	'	'	'	'	82,768	-23,487	-52,050
Impairment of marketable securities	'	'	'	'	'	'	'	'	-18,308	-605	0
Interest and other income	'	'	'	'	'	'	'	'	13,323	15,041	-6,610
Interest expense, net of capitalized interest	'	'	'	'	'	'	'	'	-41,303	-26,169	-34,774
Total other income and expense	'	'	'	'	'	'	'	'	36,480	-36,256	-98,960
Income before income taxes	'	'	'	'	'	'	'	'	-808,679	119,484	208,245
Income tax benefit (expense)	'	'	'	'	'	'	'	'	158,116	-70,807	-114,746
NET INCOME (LOSS)	-581,528	-46,265	-35,040	12,270	37,550	-15,821	22,973	3,975	-650,563	48,677	93,499
Other Comprehensive Income (Loss), Net of Tax:	'	'	'	'	'	'	'	'	'	'	'
Unrealized gain (loss) on available for sale securities	'	'	'	'	'	'	'	'	-8,489	-3,351	-4,975
Reclassification adjustments for other than temporary impairment of marketable securities	'	'	'	'	'	'	'	'	11,221	605	0
Reclassification adjustments for realized loss on sale of marketable securities	'	'	'	'	'	'	'	'	83	0	0
Other comprehensive income (loss)	'	'	'	'	'	'	'	'	2,815	-2,746	-4,975
COMPREHENSIVE INCOME	'	'	'	'	'	'	'	'	($647,748)	$45,931	$88,524
BASIC AND DILUTED INCOME PER SHARE	'	'	'	'	'	'	'	'	'	'	'
Basic (in dollars per share)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.05
Diluted (in dollars per share)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.04

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:	'	'	'
NET INCOME (LOSS)	($650,563)	$48,677	$93,499
Add (deduct) non-cash items	'	'	'
Depreciation, depletion and amortization	232,879	218,857	224,500
Accretion of discount on debt and other assets, net	2,548	3,431	4,041
Accretion of royalty obligation	14,947	18,294	21,550
Deferred income taxes	-177,178	16,163	51,792
Loss on debt extinguishments	0	1,036	5,526
Fair value adjustments, net	-80,399	18,421	46,450
Gain (loss) on foreign currency transactions	-880	-1,381	380
Proceeds From Settlement	22,046	0	0
Share-based compensation	4,812	8,010	8,122
(Gain) loss on Disposition of Assets	-9,801	1,101	-1,145
Impairment of marketable securities	18,308	605	0
Writedowns	772,993	5,825	0
Other non-cash charges	136	-326	-335
Changes in operating assets and liabilities:	'	'	'
Receivables and other current assets	663	9,756	-21,950
Prepaid expenses and other	-15,165	2,489	-8,839
Inventories	4,031	-48,305	-30,408
Accounts payable and accrued liabilities	-25,910	-31,019	22,990
CASH PROVIDED BY OPERATING ACTIVITIES	113,467	271,634	416,173
CASH FLOWS FROM INVESTING ACTIVITIES	'	'	'
Purchase of short term investments and marketable securities	-8,052	-12,959	-49,501
Proceeds from sales and maturities of short term investments	34,796	21,695	6,246
Acquisitions	-116,898	-29,297	0
Capital expenditures	-100,813	-115,641	-119,988
Other	4,478	3,087	2,282
CASH USED IN INVESTING ACTIVITIES	-186,489	-133,115	-160,961
CASH FLOWS FROM FINANCING ACTIVITIES:	'	'	'
Proceeds from issuance of notes and bank borrowings	300,000	0	27,500
Payments on long-term debt, capital leases, and associated costs	-60,628	-97,170	-85,519
Payments on gold production royalty	-57,034	-74,734	-73,191
Payments on gold lease facility	0	0	-13,800
Additions to restricted assets associated with the Kensington Term Facility	0	4,645	-1,326
Payments for Repurchase of Common Stock	-27,552	-19,971	0
Other	-514	-861	18
CASH USED IN FINANCING ACTIVITIES:	154,272	-188,091	-146,318
INCREASE IN CASH AND CASH EQUIVALENTS	81,250	-49,572	108,894
Cash and cash equivalents at beginning of period	125,440	175,012	66,118
Cash and cash equivalents at end of period	$206,690	$125,440	$175,012

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents	$206,690	$125,440
Investments	0	999
Receivables	81,074	62,438
Ore on leach pads	50,495	22,991
Metal and other inventory	132,023	170,670
Deferred tax assets	35,008	2,458
Prepaid expenses and other	25,940	21,186
Current assets	531,230	406,182
NON-CURRENT ASSETS	'	'
Property, plant and equipment, net	486,273	683,860
Mining properties, net	1,751,501	1,991,951
Ore on leach pads	31,528	21,356
Restricted assets	7,014	24,970
Marketable securities	14,521	27,065
Receivables	36,574	48,767
Debt issuance costs, net	10,812	3,713
Deferred tax assets	1,189	955
Other	15,336	12,582
TOTAL ASSETS	2,885,978	3,221,401
CURRENT LIABILITIES	'	'
Accounts payable	53,847	57,482
Accrued liabilities and other	6,843	10,002
Accrued income taxes	3,119	27,108
Accrued payroll and related benefits	18,329	21,306
Accrued interest payable	9,975	478
Debt and capital leases	2,505	55,983
Royalty obligations	48,019	65,104
Reclamation and mine closure	913	668
Deferred tax liabilities	1,011	121
Current liabilities	144,561	238,252
NON-CURRENT LIABILITIES	'	'
Debt and capital leases	306,130	3,460
Royalty obligations	65,142	141,879
Reclamation and mine closure	57,515	34,670
Deferred tax liabilities	556,246	577,488
Other long-term liabilities	25,817	27,372
Non-current liabilities	1,010,850	784,869
COMMITMENTS AND CONTINGENCIES	'	'
SHAREHOLDERS' EQUITY	'	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 102,843,003 at December 31, 2013 and 90,342,338 at December 31, 2012	1,028	903
Additional paid-in capital	2,781,164	2,601,254
Accumulated other comprehensive loss	-4,906	-7,721
Accumulated deficit	-1,046,719	-396,156
Shareholders' Equity	1,730,567	2,198,280
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$2,885,978	$3,221,401

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
SHAREHOLDERS' EQUITY	'	'
Common stock, par value	$0.01	$0.01
Common stock, share authorized	150,000,000	150,000,000
Common stock, share issued	102,843,003	90,342,338

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Changes in Shareholders' Equity (USD $)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Orko Silver Corporation [Member]	Orko Silver Corporation [Member]	Orko Silver Corporation [Member]	Coeur Capital [Member]	Coeur Capital [Member]	Coeur Capital [Member]
In Thousands, unless otherwise specified							Common Stock	Additional Paid-In Capital		Common Stock	Additional Paid-In Capital
Balances at Dec. 31, 2010	$2,040,767	$893	$2,578,206	($538,332)	$0	'	'	'	'	'	'
Balances, in shares at Dec. 31, 2010	'	89,316	'	'	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Net income	93,499	'	'	93,499	'	'	'	'	'	'	'
Other comprehensive loss	-4,975	'	'	'	'	'	'	'	'	'	'
Common stock issued/cancelled under long-term incentive plans and director fees and options, net, in shares	'	339	'	'	'	'	'	'	'	'	'
Common stock issued/cancelled under long-term incentive plans and director fees and options, net	7,430	4	7,426	'	'	'	'	'	'	'	'
Other	-4,975	'	'	'	-4,975	'	'	'	'	'	'
Balances at Dec. 31, 2011	2,136,721	897	2,585,632	-444,833	-4,975	'	'	'	'	'	'
Balances, in shares at Dec. 31, 2011	'	89,655	'	'	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Net income	48,677	'	'	48,677	'	'	'	'	'	'	'
Other comprehensive loss	-2,746	'	'	'	-2,746	'	'	'	'	'	'
Common stock share buy back, in shares	'	-893	'	'	'	'	'	'	'	'	'
Common stock share buy back	-19,971	-9	-19,962	'	'	'	'	'	'	'	'
Common issued for acquisition, in shares	'	1,310	'	'	'	'	'	'	'	'	'
Common issued for acquisition	30,000	13	29,987	'	'	'	'	'	'	'	'
Common stock issued/cancelled under long-term incentive plans and director fees and options, net, in shares	'	270	'	'	'	'	'	'	'	'	'
Common stock issued/cancelled under long-term incentive plans and director fees and options, net	5,599	2	5,597	'	'	'	'	'	'	'	'
Balances at Dec. 31, 2012	2,198,280	903	2,601,254	-396,156	-7,721	'	'	'	'	'	'
Balances, in shares at Dec. 31, 2012	'	90,342	'	'	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'	'
Net income	-650,563	'	'	-650,563	'	'	'	'	'	'	'
Other comprehensive loss	2,815	'	'	'	2,815	'	'	'	'	'	'
Common stock share buy back, in shares	'	-1,691	'	'	'	'	'	'	'	'	'
Common stock share buy back	-27,552	-17	-27,535	'	'	'	'	'	'	'	'
Common issued for acquisition, in shares	'	'	'	'	'	'	11,573	'	'	2,130	'
Common issued for acquisition	'	'	'	'	'	179,140	116	179,024	22,198	21	22,177
Common stock issued/cancelled under long-term incentive plans and director fees and options, net, in shares	'	489	'	'	'	'	'	'	'	'	'
Common stock issued/cancelled under long-term incentive plans and director fees and options, net	6,249	5	6,244	'	'	'	'	'	'	'	'
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	'	'	'	'	'	'	'	'	'

Comprehensive_Income_Parenthet

Comprehensive Income Parenthetical (Parentheticals) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	($5,362)	$0	$0
Other Comprehensive Income (Loss), Reclassification Adjustment for Write-down of Securities Included in Net Income, Net of Tax	7,087	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	$53	$0	$0

Nature_of_Operations

Nature of Operations	12 Months Ended
	Dec. 31, 2013
Basis of Persentation [Abstract]	'
NATURE OF OPERATIONS	'
	NATURE OF OPERATIONS
	Coeur Mining, Inc. (“Coeur” or “the Company”) is a large primary silver producer with significant gold production and mines located in the United States, Mexico, and Bolivia; development projects in Mexico and Argentina; and streaming and royalty interests in Australia, Mexico, Ecuador, and Chile. The Palmarejo mine, San Bartolomé mine, Kensington mine, and Rochester mine, each of which is operated by the Company, and Coeur Capital, primarily comprised of the Endeavor silver stream and other precious metal royalties, constitute the Company’s principal sources of revenues.

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	Use of Estimates
	The Company's Consolidated Financial Statements have been prepared in accordance with United States Generally Accepted Accounting Principles. The preparation of the Company's Consolidated Financial Statements requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and the related disclosure of contingent assets and liabilities at the date of the Consolidated Financial Statements and reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions relate to mineral reserves that are the basis for future cash flow estimates utilized in impairment calculations and units-of-production amortization calculations, environmental, reclamation and closure obligations, estimates of recoverable silver and gold in leach pad inventories, estimates of fair value for certain reporting units and asset impairments, valuation allowances for deferred tax assets, and the fair value and accounting treatment of financial instruments, marketable securities, and derivative instruments. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results will differ from the amounts estimated in these financial statements.
	Principles of Consolidation
	The consolidated financial statements include the wholly-owned subsidiaries of the Company, the most significant of which are Empresa Minera Manquiri S.A., Coeur Mexicana S.A. de C.V., Coeur Rochester, Inc., Coeur Alaska, Inc., and Coeur Capital. All significant intercompany balances and transactions have been eliminated. The Company's investments in entities in which it has less than 20% ownership interest are accounted for using the cost method.
	Revenue Recognition
	Revenue is recognized, net of treatment and refining charges, when persuasive evidence of an arrangement exists, delivery has occurred, the price is fixed or determinable, no obligations remain and collection is probable.
	Under the Company’s concentrate sales contracts with third-party smelters, gold and silver prices are set on a specified future quotational period, typically one to three months, after the shipment date based on market prices. Revenues and production costs applicable to sales are recorded on a gross basis under these contracts at the time title passes to the buyer based on the forward price for the expected settlement period. The contracts, in general, provide for provisional payment based upon provisional assays and forward metal prices. Final settlement is based on the average applicable price for the specified future quotational period and generally occurs from three to six months after shipment. The Company’s 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 measured at the forward price at the time of sale. The embedded derivative does not qualify for hedge accounting and is adjusted to fair value through revenue each period until the date of final gold and silver settlement.
	Cash and Cash Equivalents
	Cash and cash equivalents include all highly-liquid investments with an original maturity of three months or less. The Company minimizes its credit risk by investing its cash and cash equivalents with major U.S. and international banks and financial institutions located principally in the United States with a minimum credit rating of A1, as defined by Standard & Poor’s. The Company’s management believes that no concentration of credit risk exists with respect to the investment of its cash and cash equivalents.
	Receivables
	Trade receivables and other receivable balances are reported at outstanding principal amounts, net of an allowance for doubtful accounts, if deemed necessary. Management evaluates the collectability of receivable account balances to determine the allowance, if any. Management considers the other party's credit risk and financial condition, as well as current and projected economic and market conditions, in determining the amount of the allowance. Receivable balances are written off when management determines that the balance is uncollectible.
	Ore on Leach Pads
	The heap leach process extracts silver and gold by placing ore on an impermeable pad and applying a diluted cyanide solution that dissolves a portion of the contained silver and gold, which are then recovered in metallurgical processes.
	The Company uses several integrated steps to scientifically measure the metal content of ore placed on the leach pads. As the ore body is drilled in preparation for the blasting process, samples are taken of the drill residue which are assayed to determine estimated quantities of contained metal. The Company estimates the quantity of ore by utilizing global positioning satellite survey techniques. The Company then processes the ore through crushing facilities where the output is again weighed and sampled for assaying. A metallurgical reconciliation with the data collected from the mining operation is completed with appropriate adjustments made to previous estimates. The crushed ore is then transported to the leach pad for application of the leaching solution. As the leach solution is collected from the leach pads, it is continuously sampled for assaying. The quantity of leach solution is measured by flow meters throughout the leaching and precipitation process. After precipitation, the product is converted to doré, which is the final product produced by the mine. The inventory is stated at lower of cost or market, with cost being determined using a weighted average cost method.
	The Company reported ore on the leach pads of $82.0 million as of December 31, 2013, and $44.3 million as of December 31, 2012. As of December 31, 2013, $50.5 million is reported as a current asset and $31.5 million is reported as a non-current asset. As of December 31, 2012, $23.0 million is reported as a current asset and $21.4 million is reported as a non-current asset. The historical cost of the metal that is expected to be extracted within twelve months is classified as current and the historical cost of metals contained within the broken ore that is expected to be extracted beyond twelve months is classified as non-current. Ore on leach pad is valued based on actual production costs incurred to produce and place ore on the leach pad, less costs allocated to minerals recovered through the leach process.
	The estimate of both the ultimate recovery expected over time and the quantity of metal that may be extracted relative to the time the leach process occurs requires the use of estimates, which are inherently inaccurate due to the nature of the leaching process. The quantities of metal contained in the ore are based upon actual weights and assay analysis. The rate at which the leach process extracts gold and silver from the crushed ore is based upon laboratory column tests and actual experience occurring over more than twenty years of leach pad operations at the Rochester mine. The assumptions used by the Company to measure metal content during each stage of the inventory conversion process includes estimated recovery rates based on laboratory testing and assaying. The Company periodically reviews its estimates compared to actual experience and revises its estimates when appropriate. Variations between actual and estimated quantities resulting from changes in assumptions and estimates that do not result in write-downs to net realizable value are accounted for on a prospective basis.
	Metal and Other Inventory
	Inventories include concentrate, doré, and operating materials and supplies. The classification of inventory is determined by the stage at which the ore is in the production process. All inventories are stated at the lower of cost or market, with cost being determined using a weighted average cost method. Concentrate and doré inventory includes product at the mine site and product held by refineries. Concentrate inventories associated with the Endeavor mine are held by third parties. Metal inventory costs include direct labor, materials, depreciation, depletion and amortization as well as overhead costs relating to mining activities.
	Property, Plant, and Equipment
	Expenditures for new facilities, assets acquired pursuant to capital leases, new assets or expenditures that extend the useful lives of existing facilities are capitalized and depreciated using the straight-line method at rates sufficient to depreciate such costs over the shorter of estimated productive lives of such facilities, lease term, or the useful life of the individual assets. Productive lives range from 7 to 31 years for buildings and improvements and 3 to 13 years for machinery and equipment. Certain mining equipment is depreciated using the units-of-production method based upon estimated total proven and probable reserves.
	Mining Properties and Mine Development
	Capitalization of mine development costs begins once all operating permits have been secured, mineralization is classified as proven and probable reserves and a final feasibility study has been completed. Mine development costs include engineering and metallurgical studies, drilling and other related costs to delineate an ore body, the removal of overburden to initially expose an ore body at open pit surface mines and the building of access ways, shafts, lateral access, drifts, ramps and other infrastructure at underground mines. Costs incurred before mineralization is classified as proven and probable reserves are expensed and classified as Exploration or Pre-development expense. Mine development costs are amortized using the units of production method over the estimated life of the ore body based on recoverable ounces to be mined from proven and probable reserves. Interest expense allocable to the cost of developing mining properties and to construct new facilities is capitalized until assets are ready for their intended use.
	Drilling and related costs incurred at the Company’s operating mines are expensed as incurred as exploration expense, unless the Company can conclude with a high degree of confidence, prior to the commencement of a drilling program, that the drilling costs will result in the conversion of a mineral resource into proven and probable reserves. The Company’s assessment is based on the following factors: results from previous drill programs; results from geological models; results from a mine scoping study confirming economic viability of the resource; and preliminary estimates of mine inventory, ore grade, cash flow and mine life. In addition, the Company must have all permitting and/or contractual requirements necessary to have the right to and/or control of the future benefit from the targeted ore body. The costs of a drilling program that meet these criteria are capitalized as mine development costs. Drilling and related costs of approximately $11.6 million and $13.9 million at December 31, 2013 and 2012, respectively, were capitalized.
	The cost of removing overburden and waste materials to access the ore body at an open pit mine prior to the production phase are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development of an open pit mine. Stripping costs incurred during the production phase of a mine are variable production costs that are included as a component of inventory to be recognized in production costs applicable to sales in the same period as the revenue from the sale of inventory.
	Mineral Interests
	Significant payments related to the acquisition of land and mineral rights are capitalized. Prior to acquiring such land or mineral rights, the Company generally makes a preliminary evaluation to determine that the property has significant potential to develop an economic ore body. The time between initial acquisition and full evaluation of a property’s potential is variable and is determined by many factors including: location relative to existing infrastructure, the property’s stage of development, geological controls and metal prices. If a mineable ore body is discovered, such costs are amortized when production begins using the units-of-production method based on recoverable ounces to be mined from proven and probable reserves. If no mineable ore body is discovered, such costs are expensed in the period in which it is determined the property has no future economic value.
	Asset Impairment
	Management reviews and evaluates its long-lived assets for impairment when events and changes in circumstances indicate that the related carrying amounts of its assets may not be recoverable. Impairment is considered to exist if the total probability-weighted estimate or other appropriate estimate of future cash flows on an undiscounted basis are less than the carrying amount of the asset group, including property plant and equipment, mineral property, development property, and any deferred costs. An impairment loss is measured and recorded based on the difference between book value and estimated fair value of the asset group. Future cash flows include estimates of recoverable ounces, gold and silver prices (considering current and historical prices, price trends and related factors), production levels and required capital investment, all based on life-of-mine plans and projections. Assumptions underlying future cash flow estimates are subject to risks and uncertainties. Any differences between these assumptions and actual market conditions or the Company’s actual operating performance could have a material effect on the Company’s determination of its ability to recover the carrying amounts of its long-lived assets resulting in impairment charges. In estimating future cash flows, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of cash flows from other asset groups. Generally, in estimating future cash flows, all assets are grouped at a particular mine for which there is identifiable cash flow.
	Restricted Assets
	The Company, under the terms of its self-insurance and bonding agreements with certain banks, lending institutions and regulatory agencies, is required to collateralize certain portions of its obligations. The Company has collateralized these obligations by assigning certificates of deposit that have maturity dates ranging from three months to a year, to the respective institutions or agencies. At December 31, 2013 and 2012, the Company held certificates of deposit and cash under these agreements of $7.0 million and $25.0 million, respectively, restricted for these purposes. The ultimate timing of the release of the collateralized amounts is dependent on the timing and closure of each mine and repayment of the facility. In order to release the collateral, the Company must seek approval from certain government agencies responsible for monitoring the mine closure status. Collateral could also be released to the extent the Company is able to secure alternative financial assurance satisfactory to the regulatory agencies. The Company believes there is a reasonable probability that the collateral will remain in place beyond a twelve-month period and has therefore classified these investments as long-term.
	Reclamation and Remediation Costs
	The Company recognizes obligations for the expected future retirement of tangible long-lived assets and other associated asset retirement costs. The fair value of a liability for an asset retirement obligation will be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the life of the asset. An accretion cost, representing the increase over time in the present value of the liability, is recorded each period in Amortization expense. As reclamation work is performed or liabilities are otherwise settled, the recorded amount of the liability is reduced.
	Future remediation costs for inactive mines are accrued based on management’s best estimate at the end of each period of the undiscounted costs expected to be incurred at the site. Such cost estimates include, where applicable, ongoing care and maintenance and monitoring costs. Changes in estimates are reflected prospectively in the period an estimate is revised.
	Foreign Currency
	The assets and liabilities of the Company’s foreign subsidiaries are measured using U.S. dollars as their functional currency. Revenues and expenses are translated at the average exchange rate for the period. Foreign currency transaction gains and losses are included in the determination of net income or loss.
	Derivative Financial Instruments
	The Company recognizes all derivatives as either assets or liabilities on the balance sheet and measures those instruments at fair value. Changes in the value of derivative instruments are recorded each period in the Consolidated Statement of Comprehensive Income (Loss) in Fair value adjustments, net. Management applies judgment in estimating the fair value of instruments that are highly sensitive to assumptions regarding commodity prices, market volatilities, and foreign currency exchange rates.
	Stock-based Compensation Plans
	The Company estimates the fair value of stock options and stock appreciation rights (“SARs”) awards using the Black-Scholes option pricing model. Stock options granted are accounted for as equity-based awards and SARs are accounted for as liability-based awards. The value of the SARs is remeasured at each reporting date. The Company estimates the fair value of performance share and performance unit grants using a Monte Carlo simulation valuation model. Performance shares granted are accounted for as equity based awards and performance shares units are accounted for as liability-based awards. The Company estimates forfeitures of stock-based awards based on historical data and periodically adjusts the forfeiture rate. The adjustment of the forfeiture rate is recorded as a cumulative adjustment in the period the forfeiture estimate is changed. Compensation costs related to stock based compensation are included in General and administrative expenses, Production costs applicable to sales and the cost of self-constructed property, plant and equipment as deemed appropriate.
	Restricted stock and restricted stock units granted under the Company’s incentive plans are accounted for based on the market value of the underlying shares on the date of grant and vest in equal installments annually over three years. Restricted stock awards are accounted for as equity-based awards and restricted stock unit awards are accounted for as liability-based awards. Restricted stock units are remeasured at each reporting date. Restricted stock units are settled in cash based on the number of vested restricted stock units multiplied by the current market price of the common shares when vested. Holders of the restricted stock are entitled to vote the shares and to receive any dividends declared on the shares.
	Income Taxes
	The Company uses an asset and liability approach which results in the recognition of deferred tax liabilities and assets for the expected future tax consequences or benefits of temporary differences between the financial reporting basis and the tax basis of assets and liabilities, as well as operating loss and tax credit carryforwards, using enacted tax rates in effect in the years in which the differences are expected to reverse.
	In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of its deferred tax assets will not be realized. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. A valuation allowance has been provided for the portion of the Company’s net deferred tax assets for which it is more likely than not that they will not be realized.
	Revisions
	Certain immaterial amounts in prior years have been corrected to conform to current presentation. The Company reclassified certain income-based state taxes from Production costs applicable to sales to Income tax provision (benefit).
	Recent Accounting Standards
	On January 1, 2013, the Company adopted ASU 2011-11, "Balance Sheet (Topic 201): Disclosures about Offsetting Assets and Liabilities." This ASU adds certain additional disclosure requirements about financial instruments and derivative instruments that are subject to netting arrangements. The adoption of ASU 2011-11 had no effect on the Company's financial position, results of operations or cash flows.
	On January 1, 2013, the Company adopted ASU 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." The new standard requires either in a single note or parenthetically on the face of the financial statements: (i) the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and (ii) the income statement line items affected by the reclassification. The adoption of ASU 2013-02 had no effect on the Company's financial position, results of operations or cash flows.
	In July 2013, the FASB issued 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 update is effective prospectively for the Company's fiscal year beginning January 1, 2014.

Segment_Reporting

Segment Reporting	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
SEGMENT REPORTING	'
	SEGMENT REPORTING
	The Company’s reportable operating segments include the Palmarejo, San Bartolomé, Rochester, Kensington, and Martha mines, as well as La Preciosa 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, corporate headquarters, elimination of intersegment transactions and other items necessary to reconcile to consolidated amounts.
	Revenues from silver sales were $394.5 million, $549.7 million and $662.6 million in 2013, 2012, and 2011, respectively. Revenues from gold sales were $351.5 million, $345.8 million and $358.6 million in 2013, 2012, and 2011, respectively.
	Financial information relating to the Company’s segments is as follows (in thousands):
	Year ended December 31, 2013	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	324,040		$	141,721		$	148,769		$	119,254		$	(661	)	$	—		$	12,871		$	—		$	745,994
	Production costs applicable to sales	(188,572		)	(86,827		)	(104,575		)	(77,869		)	—			—			(5,818		)	(2		)	(463,663		)
	Amortization	(134,240		)	(19,565		)	(63,216		)	(10,571		)	(438		)	(24		)	(3,755		)	(1,070		)	(232,879		)
	Gross profit (loss)	1,228			35,329			(19,022		)	30,814			(1,099		)	(24		)	3,298			(1,072		)	49,452
	Exploration expense	7,161			111			4,199			2,653			4,485			80			2,069			1,602			22,360
	Write-downs	642,094			—			130,694			—			—			—			—			205			772,993
	Other operating expenses	—			5,743			269			34,584			2,650			3,237			1,397			51,378			99,258
	OPERATING INCOME (LOSS)	(648,027		)	29,475			(154,184		)	(6,423		)	(8,234		)	(3,341		)	(168		)	(54,257		)	(845,159		)
	Interest and other income, net	906			2,582			(187		)	(318		)	865			15			(19,474		)	10,626			(4,985		)
	Interest expense, net	(15,123		)	(74		)	(424		)	(20		)	(1		)	—			—			(25,661		)	(41,303		)
	Fair value adjustments, net	76,218			—			7,480			416			—			—			—			(1,346		)	82,768
	Income tax (provision) benefit	107,748			(10,938		)	(1		)	(2,332		)	(137		)	(20,856		)	2,179			82,453			158,116
	Net income (loss)	$	(478,278	)	$	21,045		$	(147,316	)	$	(8,677	)	$	(7,507	)	$	(24,182	)	$	(17,463	)	$	11,815		$	(650,563	)
	Segment assets(1)	$	1,164,852		$	289,272		$	343,144		$	176,789		$	6,168		$	410,335		$	62,678		$	105,581		$	2,558,819
	Capital expenditures	$	33,730		$	11,568		$	21,404		$	29,406		$	10		$	1,122		$	—		$	3,573		$	100,813
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
	Year ended December 31, 2012	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	442,098		$	178,005		$	110,987		$	132,392		$	13,162		$	18,848		$	—		$	895,492
	Production costs applicable to sales	(197,478		)	(71,428		)	(87,089		)	(72,061		)	(17,682		)	(8,824		)	—			(454,562		)
	Amortization	(146,595		)	(16,709		)	(41,645		)	(8,065		)	(692		)	(4,632		)	(519		)	(218,857		)
	Gross profit (loss)	98,025			89,868			(17,747		)	52,266			(5,212		)	5,392			(519		)	222,073
	Exploration expense	7,575			159			3,283			3,591			8,648			1,056			1,958			26,270
	Write-downs	—			—			—			—			5,825			—			—			5,825
	Other operating expenses	11			80			74			1,401			2,108			(736		)	31,300			34,238
	OPERATING INCOME (LOSS)	90,439			89,629			(21,104		)	47,274			(21,793		)	5,072			(33,777		)	155,740
	Interest and other income, net	4,017			9,719			(77		)	358			(1,153		)	(77		)	1,649			14,436
	Interest expense, net	(18,938		)	(72		)	(2,972		)	(26		)	(3		)	—			(4,158		)	(26,169		)
	Loss on debt extinguishment	—			—			(1,036		)	—			—			—			—			(1,036		)
	Fair value adjustments, net	(31,054		)	—			4,089			—			—			—			3,478			(23,487		)
	Income tax (provision) benefit	(18,066		)	(44,632		)	—			(2,195		)	976			(327		)	(6,563		)	(70,807		)
	Net income (loss)	$	26,398		$	54,644		$	(21,100	)	$	45,411		$	(21,973	)	$	4,668		$	(39,371	)	$	48,677
	Segment assets(1)	$	1,905,269		$	302,922		$	508,658		$	104,373		$	9,813		$	32,656		$	110,365		$	2,974,056
	Capital expenditures	$	38,456		$	25,672		$	36,994		$	11,794		$	1,193		$	—		$	1,532		$	115,641
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
	Year ended December 31, 2011	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	513,097		$	267,502		$	151,186		$	57,331		$	13,347		$	18,737		$	—		$	1,021,200
	Production costs applicable to sales	(186,201		)	(79,679		)	(101,672		)	(27,848		)	(15,513		)	(8,634		)	—			(419,547		)
	Amortization	(159,264		)	(22,410		)	(35,839		)	(2,824		)	(556		)	(3,155		)	(452		)	(224,500		)
	Gross profit (loss)	167,632			165,413			13,675			26,659			(2,722		)	6,948			(452		)	377,153
	Exploration expense	6,863			248			1,102			1,989			6,367			662			1,897			19,128
	Other operating expenses	949			342			317			19,931			156			(1		)	29,126			50,820
	OPERATING INCOME (LOSS)	159,820			164,823			12,256			4,739			(9,245		)	6,287			(31,475		)	307,205
	Interest and other income, net	(9,099		)	156			4			57			(544		)	1,108			1,708			(6,610		)
	Interest expense, net	(23,453		)	(45		)	(4,889		)	(21		)	(458		)	—			(5,908		)	(34,774		)
	Loss on debt extinguishment	—			—			—			—			—			—			(5,526		)	(5,526		)
	Fair value adjustments, net	(40,046		)	—			(8,438		)	—			—			—			(3,566		)	(52,050		)
	Income tax (provision) benefit	(28,023		)	(59,867		)	(31		)	(409		)	(1,219		)	—			(25,197		)	(114,746		)
	Net income (loss)	$	59,199		$	105,067		$	(1,098	)	$	4,366		$	(11,466	)	$	7,395		$	(69,964	)	$	93,499
	Segment assets(1)	$	2,029,769		$	276,423		$	507,891		$	76,852		$	19,717		$	36,349		$	16,129		$	2,963,130
	Capital expenditures	$	36,976		$	17,731		$	34,013		$	27,217		$	3,426		$	59		$	566		$	119,988
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
		As of December 31,
	(in thousands)	2013			2012			2011
	Assets
	Total assets for reportable segments	$	2,558,819		$	2,974,056		$	2,963,130
Cash and cash equivalents	206,690			125,440			175,012
Short term investments	—			999			20,254
Other assets	120,469			120,906			106,045
Total consolidated assets	$	2,885,978		$	3,221,401		$	3,264,441
Geographic Information
	As of December 31,
(in thousands)	2013			2012			2011
Long Lived Assets
United States	$	384,626		$	608,051		$	515,096
Australia	25,668			29,408			33,999
Argentina	94,705			1,705			5,213
Bolivia	235,085			240,905			230,956
Mexico	1,487,228			1,795,677			1,903,374
Other Foreign Countries	10,462			65			65
Total	$	2,237,774		$	2,675,811		$	2,688,703
	Twelve months ended December 31,
(in thousands)	2013			2012			2011
Revenues
United States	$	268,023		$	243,379		$	208,517
Mexico	324,040			442,098			513,097
Bolivia	141,721			178,005			267,502
Australia	12,871			18,848			18,737
Argentina	(661		)	13,162			13,347
Total	$	745,994		$	895,492		$	1,021,200
The Company markets its doré to bullion trading houses, market makers and members of the London Bullion Market Association, industrial companies and other financial institutions. The Company has eight trading counterparties and the sales of metals to these companies amounted to approximately 72%, 91%, and 82% of total metal sales for the years ended December 31, 2013, 2012, and 2011, respectively. Generally, the loss of a single bullion trading counterparty would not adversely affect the Company due to the liquidity of the markets and the availability of alternative trading counterparties.
The Company currently has five trading counterparties for its silver and gold concentrates and the sales to these companies amounted to approximately 28%, 9%, and 18% of total metal sales for the years ended December 31, 2013, 2012, and 2011, respectively. The loss of any one smelting and refining client may have a material adverse effect if alternate smelters and refiners are not available. The Company believes there is sufficient global capacity available to address the loss of any one smelter.
The following table indicates customers that represent 10% or more of total sales of metal for at least one of the years December 31, 2013, 2012, and 2011 (in millions):
		Year Ended December 31,
Customer		2013			2012			2011			Segments reporting revenue
Auramet		$	111.7		$	94.6		$	50.8		Palmarejo, San Bartolomé, Kensington, Rochester
Toronto-Dominion Bank		106.7			65.8			—			Palmarejo, Rochester
INTL Commodities		84.6			58			112.6			Palmarejo, San Bartolomé, Rochester
China Gold		81.5			43.8			108.9			Kensington
Valcambi		77.2			414.4			385.5			Palmarejo, San Bartolomé
Mitsui		70.3			65.6			105.1			Palmarejo, Rochester

WriteDowns

Write-Downs	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Write-Downs	'
	WRITE-DOWNS
		Year ended December 31,
		2013		2012		2011
	Property, plant, and equipment
	Palmarejo	$	102,735	$	—	$	—
	Kensington	48,357		—		—
		151,092		—		—
	Mining properties
	Palmarejo	539,359		—		—
	Kensington	82,337		—		—
	Martha	205		5,825		—
		621,901		5,825		—
	Total	$	772,993	$	5,825	$	—
	Write-downs were $773.0 million, $5.8 million, and $0.0 million in 2013, 2012, and 2011, respectively. The 2013 write-down was primarily due to a $642.1 million impairment of the Palmarejo mine (excluding $179.8 million tax benefit) and a $130.7 million impairment of the Kensington mine due to a decrease in the Company's long-term silver and gold price assumptions. The decrease in silver and gold price assumptions represented significant changes in the business, requiring the Company to evaluate for impairment. For purposes of this evaluation, estimates of future cash flows of the individual reporting units were used to determine fair value. The estimated cash flows were derived from life-of-mine plans, developed using long-term pricing reflective of the current price environment and management’s projections for operating costs.
	The 2012 write-down was due to the cessation of mining operations at the Martha Mine in September 2012. Refer to Note 11 -- Fair Value Measurements for additional information related to the fair value determination of the impairment.

Reclamation_and_Mine_Closure

Reclamation and Mine Closure	12 Months Ended
	Dec. 31, 2013
Asset Retirement Obligation Disclosure [Abstract]	'
RECLAMATION AND MINE CLOSURE	'
	RECLAMATION AND MINE CLOSURE
	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. Such assumptions are based on the Company’s current mining plan and the best available information for making such estimates. The sum of the expected costs by year is discounted, using the Company's credit-adjusted risk-free interest rate. On an ongoing basis, management evaluates its estimates and assumptions; however, future expenditures could differ from those based on such estimates and assumptions.
	Changes to the Company’s asset retirement obligations are as follows (in thousands):
		Years ended December 31,
		2013			2012
	Asset retirement obligation - Beginning	$	34,457		$	32,714
	Accretion	3,442			2,911
	Additions and changes in estimates	20,236			(1,073		)
	Settlements	(681		)	(95		)
	Asset retirement obligation - Ending	$	57,454		$	34,457
	During the year ended December 31, 2013, Rochester and Kensington submitted updated reclamation plans to state and federal agencies based on new regulations, mine plans, and cost estimates. As a result of the new reclamation plans, the Company increased asset retirement obligations by $20.2 million in 2013. The Company did not have a similar change to the reclamation plans in the year ended December 31, 2012.
	The Company has accrued $1.0 million and $0.9 million at December 31, 2013 and December 31, 2012, respectively, for reclamation liabilities related to former mining activities. These amounts are also included in Reclamation and mine closure in the Consolidated Balance Sheets.

StockBased_Compensation_Plans

Stock-Based Compensation Plans	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
STOCK-BASED COMPENSATION PLANS	'
	-BASED COMPENSATION PLANS
	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. Share-based compensation expense for the years ended December 31, 2013, 2012, and 2011 was $4.8 million, $8.0 million, and $8.1 million, respectively. At December 31, 2013, there was $7.0 million of unrecognized stock-based compensation cost which is expected to be recognized over a weighted-average remaining vesting period of 1.7 years.
	Stock Options and Stock Appreciation Rights
	Stock options and stock appreciation rights (SARs) granted under the Company’s incentive plans vest over three years and are exercisable over a period not to exceed ten years from the grant date. The exercise price of the stock options and SARs is equal to the fair market value of the shares on the date of the grant. The value of each stock option award and SAR is estimated using the Black-Scholes option pricing model. Stock options are accounted for as equity awards and SARs are accounted for as liability awards and remeasured at each reporting date. SARs, when vested, provide the participant the right to receive cash equal to the excess of the market price of the shares over the exercise price when exercised. Cash used to settle SARs for the years ended December 31, 2013, 2012 and 2011 was $0.0 million, $0.4 million and $1.9 million, respectively.
	The following table sets forth the weighted average fair value of stock options and the assumptions used to estimate the fair value of the stock options using the Black-Scholes option valuation model:
		2013				2012				2011
	Weighted average fair value of stock options granted	$	12.6			$	15.77			$	17.85
	Volatility	76.74		%		70.56		%		72.56		%
	Expected life in years	5				5.5				6
	Risk-free interest rate	0.84		%		0.89		%		2.3		%
	Dividend yield	—				—				—
	The following table summarizes stock option and SARs activity for the years ended December 31, 2013, 2012 and 2011:
		Stock Options							SARs
		Shares			Weighted				Shares			Weighted
					Average							Average
					Exercise							Exercise
					Price							Price
	Outstanding at December 31, 2010	330,840			$	24.6			230,563			$	13.46
	Granted	139,916			27.39				—			—
	Exercised	(129,785	)		11.41				(119,801	)		13.1
	Canceled/forfeited	(19,364	)		40.16				(3,123	)		14.46
	Outstanding at December 31, 2011	321,607			24.6				107,639			13.46
	Granted	151,102			26.97				—			—
	Exercised	(40,173	)		11.84				(34,385	)		12.73
	Canceled/forfeited	(62,536	)		29.22				(4,389	)		15.4
	Outstanding at December 31, 2012	370,000			30.2				68,865			13.83
	Granted	190,452			20.41				—			—
	Exercised	(13,027	)		10.77				(6,617	)		13.14
	Canceled/forfeited	(131,855	)		29.3				(12,039	)		15.4
	Outstanding at December 31, 2013	415,570			$	27.36			50,209			$	14.15
			Options Outstanding									Options Exercisable
	Range of		Number			Weighted Average				Weighted		Number		Weighted		Weighted
	Exercise Price		Outstanding			Exercise				Average		Exercisable		Average		Average
						Price				Remaining				Exercise		Remaining
										Contractual				Price		Contractual Life (Years)
										Life (Years)
	$ 0.00-$10.00		13,262			$	10			5.09		13,262		$	10	5.09
	$10.00-$20.00		99,245			$	17.25			9.21		3,936		$	19.01	8.35
	$20.00-$30.00		227,896			$	26.07			6.61		99,310		$	27.29	4.05
	$30.00-$40.00		38,369			$	39			1.25		37,515		$	39.09	1.12
	$40.00-$50.00		14,386			$	48.5			1.34		14,386		$	48.5	1.34
	$50.00-$60.00		9,544			$	51.4			0.91		9,544		$	51.4	0.91
	$60.00-$70.00		3,219			$	66.6			0.02		3,219		$	66.6	0.02
	$70.00-$80.00		9,649			$	70.9			0.14		9,649		$	70.9	0.14
			415,570			$	27.36					190,821		$	33.91
	At December 31, 2013, there was $0.9 million of unrecognized compensation cost related to non-vested stock options and SARs to be recognized over a weighted average period of 1.4 years.
	Restricted Stock and Restricted Stock Units
	Restricted stock and restricted stock units granted under the Company’s incentive plans are accounted for based on the market value of the underlying shares on the date of grant and vest in equal installments annually over three years. Restricted stock awards are accounted for as equity awards and restricted stock unit awards are accounted for as liability awards. Restricted stock units are remeasured at each reporting date. Restricted stock units are settled in cash based on the number of vested restricted stock units multiplied by the current market price of the common shares when vested. Holders of the restricted stock are entitled to vote the shares and to receive any dividends declared on the shares. Cash used to settle restricted stock units for the years ended December 31, 2013, 2012, and 2011 was $0.2 million, $0.9 million, and $2.2 million, respectively.
	The following table summarizes restricted stock and restricted stock units activity for the years ended December 31, 2013, 2012 and 2011:
		Restricted Stock							Restricted Stock Units
		Number of			Weighted				Number of			Weighted Average
		Shares			Average				Units			Fair Value
					Grant Date
					Fair Value
	Outstanding at December 31, 2010	64,623			$	11.37			126,416			$	27.32
	Granted	205,463			27.37				—			—
	Vested	(85,323	)		19.36				(79,014	)		27.87
	Cancelled/Forfeited	(11,254	)		26.89				(1,884	)		25.03
	Outstanding at December 31, 2011	173,509			11.37				45,518			27.32
	Granted	230,096			26.4				—			—
	Vested	(95,336	)		23.15				(31,456	)		25.92
	Cancelled/Forfeited	(68,571	)		27.43				(2,651	)		24.6
	Outstanding at December 31, 2012	239,698			25.38				11,411			24.14
Granted	573,467			15.38				—			—
Vested	(90,963	)		26.83				(11,411	)		22.74
Cancelled/Forfeited	(109,116	)		23.3				—			—
Outstanding at December 31, 2013	613,086			$	16.68			—			$	—
At December 31, 2013, there was $3.6 million of total unrecognized compensation cost related to restricted stock and restricted stock unit awards to be recognized over a weighted-average period of 1.7 years.
Performance Shares and Performance Share Units
Performance shares and performance share units granted under the Company’s incentive plans are accounted for at fair value. Performance share awards are accounted for as equity awards and performance units are accounted for as liability-based awards. Performance shares and performance units are valued using a Monte Carlo simulation valuation model on the date of grant. The value of the performance units is remeasured each reporting date. Vesting is contingent on meeting certain market conditions based on relative total stockholder return. The performance shares and units vest at the end of the three-year service period if market and service conditions are met. The existence of a market condition requires recognition of compensation cost for the performance share awards over the requisite period regardless of whether the market condition is satisfied. Performance units are cash-based awards and are settled in cash based on the current market price of the common shares when vested. Cash used to settle performance units for the years ended December 31, 2013, 2012, and 2011 was $1.2 million, $2.1 million, and $1.4 million, respectively.
The following table summarizes performance shares and performance units’ activity for the years-ended December 31, 2013, 2012, and 2011:
	Performance Shares							Performance Units
	Number of			Weighted				Number of			Weighted Average
	Shares			Average				Units			Fair Value
				Grant Date
				Fair Value
Outstanding at December 31, 2010	100,828			$	16.29			145,023			$	35.41
Granted	81,489			42.72				—			—
Vested	(56,830	)		23.24				(57,948	)		24.68
Cancelled/Forfeited	(19,558	)		48.62				(2,536	)		25.03
Outstanding at December 31, 2011	105,929			16.29				84,539			35.41
Granted	145,508			25.78				32,498			—
Vested	(111,703	)		7.96				(74,845	)		31.17
Cancelled/Forfeited	(30,575	)		42.11				(7,953	)		49.2
Outstanding at December 31, 2012	109,159			26.92				34,239			39.78
Granted	173,773			23.35				34,239			38.02
Vested	(4,160	)		30.97				(68,478	)		38.02
Cancelled/Forfeited	(68,377	)		34.49				—			—
Outstanding at December 31, 2013	210,395			$	28.04			—			$	—
At December 31, 2013, there was $2.4 million of total unrecognized compensation cost related to performance shares to be recognized over a weighted average period of 1.9 years.

Defined_Contribution_and_401k_

Defined Contribution and 401(k) Plans	12 Months Ended
	Dec. 31, 2013
Postemployment Benefits [Abstract]	'
DEFINED CONTRIBUTION AND 401(k) PLANS	'
	DEFINED CONTRIBUTION AND 401(k) 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 adopted a Safe Harbor Tiered Match and is required to make matching contributions equal to 100% of the employee’s contribution up to 3% of the employee’s compensation plus matching contributions equal to 50% of the employee’s contribution up to an additional 2% of the employee’s compensation. In addition, the Company provides a noncontributory defined contribution based on a percentage of eligible employee's salary. Total plan expenses recognized for the years ended December 31, 2013, 2012, and 2011 were $4.1 million, $4.1 million, and $2.9 million, respectively.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'
	INCOME TAXES
	The components of income (loss) before income taxes were as follows (in thousands):
		Years Ended December 31,
		2013				2012			2011
	United States	$	(242,562	)		$	(3,443	)	$	(38,372	)
	Foreign	(566,117		)		122,927			246,617
	Total	$	(808,679	)		$	119,484		$	208,245
	For the years ended December 31, 2013, 2012, and 2011 the Company reported an income tax (provision) benefit of $158.1 million, $(70.8) million, and $(114.7) million, respectively.
	The following table summarizes the components of the Company’s income tax provision from continuing operations for the three years ended December 31, 2013, 2012, and 2011 (in thousands):
	The components of the consolidated income tax benefit (expense) from continuing operations were as follows:
		Years Ended December 31,
		2013				2012			2011
	Current:
	United States	$	4			$	(257	)	$	2,015
	United States — State mining taxes	(714		)		(2,195		)	(409		)
	United States — Foreign withholding tax	397				(736		)	(842		)
	Argentina	(137		)		976			(1,219		)
	Australia	(914		)		(1,760		)	(1,755		)
	Mexico	(9,046		)		(7,814		)	(1,084		)
	Bolivia	(6,716		)		(43,546		)	(59,660		)
	Canada	(1,936		)		—			—
	Deferred:
	Argentina	8,062				—			—
	Australia	(2		)		(223		)	(661		)
	Bolivia	(4,222		)		(1,087		)	(207		)
	Mexico	94,851				(10,579		)	(28,022		)
	United States	78,489				(3,586		)	(22,902		)
	Income tax benefit (expense)	$	158,116			$	(70,807	)	$	(114,746	)
	A reconciliation of the Company’s effective tax rate with the federal statutory tax rate for the periods indicated is as follows:
		Years Ended December 31
		2013				2012			2011
	Tax benefit (expense) from continuing operations	$	283,038			$	(41,819	)	$	(72,886	)
	State tax provision from continuing operations	2,245				(3,151		)	(11,009		)
	Percentage depletion and related deductions	—				7,461			—
	Change in valuation allowance	(106,802		)		(12,651		)	(6,032		)
	Non-deductible imputed interest	(214		)		(525		)	(808		)
	Uncertain tax positions	(5,209		)		(9,849		)	(1,279		)
	U.S. and foreign non-deductible expenses	(2,383		)		(4,206		)	(10,648		)
	Foreign exchange rates	13,937				(10,416		)	(4,440		)
	Foreign inflation and indexing	2,937				712			(3,829		)
	Foreign tax rate differences	(24,108		)		3,967			22,795
	Foreign withholding and other foreign taxes	(100,331		)		(5,861		)	(23,246		)
	Foreign tax credits and other, net	13,153				5,531			(3,364		)
	Change in Mexico permanent reinvestment assertion	81,853				—			—
		$	158,116			$	(70,807	)	$	(114,746	)
	As of December 31, 2013 and 2012, the significant components of the Company’s deferred tax assets and liabilities were as follows:
		Years Ended December 31
		2013				2012
	Deferred tax liabilities:
	Mineral properties	$	344,152			$	461,742
	Mexican mining royalty tax	76,386				—
	Foreign subsidiaries — unremitted earnings	182,464				247,000
	Inventory	2,746				—
	Property, plant and equipment, net	33,094				60,266
		$	638,842			$	769,008
	Deferred tax assets:
	Net operating loss carryforwards	130,170				99,323
	Foreign subsidiaries — future tax credits	163,947				145,395
	Royalty and other long-term debt	11,616				42,221
	Capital loss carryforwards	34,930				35,315
	Asset retirement obligation	18,589				8,623
	Unrealized foreign currency loss and other	9,567				1,590
	Accrued expenses	14,756				20,692
Tax credit carryforwards	23,585				22,811
Inventory	—				1,418
	407,160				377,388
Valuation allowance	(289,378		)		(182,576		)
	117,782				194,812
Net deferred tax liabilities	$	(521,060	)		$	(574,196	)
The Company has evaluated the amount of taxable income and periods over which it must be earned to allow for realization of the deferred tax assets. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this decision. Based upon this analysis, the Company has recorded valuation allowances as follows:
	Years Ended December 31
	2013				2012
U.S.	$	236,653			$	132,790
Argentina	17,005				18,442
Canada	4,453				2,227
New Zealand	27,292				27,125
Other	3,975				1,992
	$	289,378			$	182,576
A reconciliation of the beginning and ending amount related to unrecognized tax benefits is as follows (in thousands):
Unrecognized tax benefits at January 1, 2012	$	1,980
Gross increase to current period tax positions	9,227
Gross decrease to prior period tax positions	(696		)
Unrecognized tax benefits at December 31, 2012	$	10,511
Gross increase to current period tax positions	2,231
Gross increase to prior period tax positions	2,761
Reductions in unrecognized tax benefits resulting from a lapse of the applicable statue of limitations	(32		)
Unrecognized tax benefits at December 31, 2013	$	15,471
At December 31, 2013, 2012, and 2011, $14.3 million, $10.3 million, and $1.1 million, respectively, of these gross unrecognized benefits would, if recognized, decrease the Company's effective tax rate. The Company is not able to estimate the amount of change in the Company's gross unrecognized tax benefits within the next twelve months.
The Company classifies interest and penalties associated with uncertain tax positions as a component of income tax expense and has recognized interest and penalties of $3.8 million, $2.5 million, and $0.4 million as of 2013, 2012, and 2011, respectively.
The Company files income tax returns in various U.S. federal and state jurisdictions, in all identified foreign jurisdictions and various others. The statute of limitations remains open from 2009 for the US federal jurisdiction and from 2004 for certain other foreign jurisdictions.
In the fourth quarter of 2013, the Company made an assertion that earnings are permanently reinvested in its Coeur Mexicana mining operations entity which results in an income tax benefit in the current year of $81 million. Therefore, at December 31, 2013, no provision has been made for United States federal and state income taxes on the Company's outside tax basis differences in Mexico, which primarily relate to accumulated foreign earnings which have been reinvested and are expected to be reinvested outside the United States indefinitely.
During 2007, the Company incurred an ownership change which generally limits the availability of existing tax attributes, including net operating loss carryforwards to reduce future taxable income. The Company has the following tax attribute carryforwards as of December 31, 2013, by jurisdiction:
	U.S.			Argentina			Canada		Mexico		New Zealand	Other	Total
Regular net operating losses	226,985			21,061			7,203		4,170		97,470	6,641	363,530
Alternative minimum tax net operating losses	99,954			—			—		—		—	—	99,954
Capital losses	90,258			—			3,579		—		—	—	93,837
Alternative minimum tax credits	3,136			—			—		—		—	—	3,136
Foreign tax credits	19,494			—			—		—		—	—	19,494
The U.S. net operating losses expire from 2019 through 2033 and the Canada net operating losses will expire from 2029 through 2033. The Mexico net operating losses expire from 2017 to 2023, while the remaining net operating losses from the foreign jurisdictions have an indefinite carryforward period. The U.S. capital losses expire in 2015 while the Canada capital losses generally have an indefinite carryforward period. Alternative minimum tax credits do not expire and foreign tax credits expire if unused beginning in 2019.

Net_Income_Loss_Per_Share

Net Income (Loss) Per Share	12 Months Ended
	Dec. 31, 2013
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 year ended December 31, 2013, 1,111,021 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 year ended December 31, 2012, 479,767 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. For the year ended December 31, 2011, 1,059,228 shares of common stock equivalents related to convertible debt and 4,258 equity based awards have not been included in the diluted per share calculation as the impact of share conversion would be antidilutive. The 3.25% Convertible Senior Notes were not included in the computation of diluted earnings per share for the years ended December 31, 2013, 2012, and 2011 because there is no excess value upon conversion over the principal amount of the Notes.
		Year ended December 31,
	In thousands except per share amounts	2013			2012		2011
	Net income (loss) available to common stockholders	$	(650,563	)	$	48,677	$	93,499
	Weighted average shares
	Basic	97,864			89,437		89,383
	Effect of share based compensation plans	—			166		342
	Diluted	97,864			89,603		89,725
	Income (loss) per share:
	Basic	$	(6.65	)	$	0.54	$	1.05
	Diluted	$	(6.65	)	$	0.54	$	1.04

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
ACQUISITIONS	'
	ACQUISITIONS
	The Company completed the acquisition of Orko Silver Corporation (“Orko”) in April 2013. Upon completion of the acquisition, the Company holds the La Preciosa silver-gold project in the state of Durango, Mexico. The transaction was accounted for as a purchase of mineral interests since La Preciosa is a development stage project. The Company incurred $17.6 million of acquisition costs related to the acquisition of Orko which were capitalized.
	Total consideration paid for the asset acquisition (in thousands):
	Common shares issued (11,572,918 at $14.98)	$	173,363
	Cash	99,059
	Warrants (1,588,768 valued at $3.64 per warrant)	5,777
	Transaction advisory fees and other acquisition costs	17,642
	Total purchase price	295,841
	Current liabilities	2,616
	Deferred income taxes	114,339
	Total liabilities assumed	116,955
	Total consideration	$	412,796
	Estimated fair value of the assets acquired (in thousands):
	Cash	$	3,487
	Other current assets	635
	Mineral interests	408,352
	Other assets	322
	Total assets acquired	$	412,796
	The Company completed the acquisition of Global Royalty Corporation (“GRC”) in December 2013. The transaction was accounted for as a business combination. Upon completion of the acquisition, the Company holds net smelter royalties on the El Gallo complex in Mexico and the Zaruma mine in Ecuador. The Company incurred $0.3 million of acquisition related costs in 2013 related to the acquisition of GRC which are included in General and administrative expenses in the Consolidated Statement of Comprehensive Income (Loss).
	Total consideration paid for the acquisition (in thousands):
	Common shares issued (2,130,351 at $10.42)	$	22,198
	Cash	3,849
	Total purchase price	26,047
	Current liabilities	679
	Deferred income taxes	7,926
	Total liabilities assumed	8,605
	Total consideration	$	34,652
	Estimated fair value of the assets acquired (in thousands):
	Cash	$	165
	Receivables	276
	Metal and other inventory	111
	Mineral interests	34,100
	Total assets acquired	$	34,652

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
FAIR VALUE MEASUREMENTS	'
	FAIR VALUE MEASUREMENTS
	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 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 NSR royalty obligation	21,630			—		—			21,630
	Other derivative instruments, net	1,590			—		1,590			—
		$	63,558		$	—	$	1,590		$	61,968
		Fair Value at December 31, 2012
		Total			Level 1		Level 2			Level 3
	Assets:
	Short-term investments	$	999		$	999	$	—		$	—
	Marketable equity securities	27,065			27,065		—			—
	Put and call options	943			—		943			—
		$	29,007		$	28,064	$	943		$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	145,098		$	—	$	145,098		$	—
	Put and call options	9,299			—		9,299			—
		$	154,397		$	—	$	154,397		$	—
	The Company’s short-term investments are readily convertible to cash and, therefore, these investments are classified within Level 1 of the fair value hierarchy.
	The Company’s 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. Please see Note 13 -- Investments for additional details on marketable equity securities.
	The Company’s gold 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 NSR 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 NSR royalty obligation and is considered company specific and unobservable.  Therefore, the Company has classified the Palmarejo royalty obligation embedded derivative and Rochester NSR royalty obligation as Level 3 financial liabilities. Based on the current mine plans, an expected royalty duration of 2.5 years and 5.1 years were used to estimate the fair value of the Palmarejo royalty obligation embedded derivative and Rochester NSR royalty obligation, respectively, as of December 31, 2013. The Company had no Level 3 financial assets or liabilities as of December 31, 2012.
	The following table presents the changes in the fair value of the Company's Level 3 financial liabilities for the twelve months ended December 31, 2013.
		Balance at the beginning of the period			Additions		Revaluation			Transfers from Level 2		Balance at the end of the period		Unrealized gains (losses) recognized in income statement
	Palmarejo royalty obligation embedded derivative	$	—		$	—	$	(104,760	)	$	145,098	$	40,338	$	104,760
	Rochester NSR royalty obligation	—			22,046		(416		)	—		21,630		416
	During 2013, Coeur recorded write-downs related to Property, Plant, and Equipment and Mining Properties totaling $773.0 million. The fair values of Property, Plant, and Equipment and Mining Properties were estimated using a discounted cash flow approach. The discounted cash flow model used significant unobservable inputs and is therefore classified within Level 3 for the fair value hierarchy. The following table sets forth the quantitative and qualitative information related to the unobservable inputs used in the calculation of the Company's non-recurring Level 3 fair value measurements:
	Description	Valuation technique	Unobservable input	Range / Weighted Average
	Property, plant, and equipment	Discounted cash flow	Discount rate	8.5% - 10.5%
			Long-term silver price	$25.00
			Long-term gold price	$1,450
	Mining properties	Discounted cash flow	Discount rate	8.5% - 10.5%
			Long-term silver price	$25.00
			Long-term gold price	$1,450
	The fair value of financial assets and liabilities that are measured at book value in the financial statements at December 31, 2013 and December 31, 2012 are presented in the following table (in thousands):
		Fair Value at December 31, 2013
		Total			Level 1		Level 2			Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,067		$	5,067	$	—		$	—
	7.875% Senior Notes due 2021	307,314			307,314		—			—
	Palmarejo Gold Production Royalty Obligation	65,212			—		—			65,212
		Fair Value at December 31, 2012
		Total			Level 1		Level 2			Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	48,220		$	48,220	$	—		$	—
	Palmarejo Gold Production Royalty Obligation	90,617			—		90,617			—
	The fair value at December 31, 2013 and December 31, 2012 of the 3.25% Convertible Senior Notes and 7.875% Senior Notes outstanding were determined by active market transactions. As such, the notes are classified as Level 1 in the fair value hierarchy.
	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 2.5 years was used to estimate the fair value of the Palmarejo Gold Production Royalty Obligation as of December 31, 2013.
	The fair value of the Company's cash equivalents, receivables, restricted assets, accounts payable, accrued liabilities, and capital leases approximate book value due to the nature of these assets and liabilities and are classified as Level 1 in the fair value hierarchy, except for capital leases which are classified as Level 2.
	The fair value of the Company's non-current portion of the refundable value added tax is not practicable to estimate due to the uncertainty of the timing of the expected future cash flows to be received.

Derivative_Financial_Instrumen

Derivative Financial Instruments	12 Months Ended
	Dec. 31, 2013
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 included 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 December 31, 2013, a total of 140,931 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 5.7% and 4.2% at December 31, 2013 and 2012, respectively. The fair value of the embedded derivative at December 31, 2013 and 2012 was a liability of $40.3 million and $145.1 million, respectively. During the years ended December 31, 2013, 2012, and 2011, the mark-to-market adjustments for this embedded derivative amounted to gains of $104.8 million, losses of $14.3 million, and losses of $2.6 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 $400 per ounce, which is subject to a 1% annual inflation compounding adjustment beginning on January 21, 2013). For the years ended December 31, 2013, 2012, and 2011 realized losses on settlement of the liabilities were $28.7 million, $45.4 million, and $42.8 million, respectively. The mark-to-market adjustments and realized losses are included in Fair value adjustments, net in the Consolidated Statement of Comprehensive Income (Loss).
	Foreign Exchange Contracts and Hedges
	The Company periodically enters into forward foreign currency contracts to reduce the foreign exchange risk associated with forecasted Mexican peso (“MXN”) operating costs at its Palmarejo mine. At December 31, 2013, the Company had MXN foreign exchange forward contracts with a notional amount of $12.0 million. These contracts require 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 Company had a liability related to these contracts with a fair value of $0.9 million at December 31, 2013. In addition, at December 31, 2013, the Company had outstanding call options requiring it to sell $45.0 million in U.S. dollars in exchange for MXN at a weighted average strike price of 14.80 MXN to each U.S. dollar if the foreign exchange rate exceeds the strike price. Further, at December 31, 2013, the Company had outstanding put options allowing it to buy $45.0 million in U.S. dollars in exchange for MXN at a weighted average strike price of 12.60 MXN to each U.S. dollar if the foreign exchange rate exceeds the strike price. The Company had a liability related to these contracts with an insignificant fair value at December 31, 2013. The Company recorded a mark-to-market loss on its MXN contracts of $1.0 million for the twelve months ended December 31, 2013.
	At December 31, 2012, the Company had MXN foreign exchange forward contracts on $26.1 million in U.S. dollars. These contracts required the Company to exchange U.S. dollars for MXN at a weighted average exchange rate of 13.11 MXN to each U.S. dollar and the Company had a liability with a fair value of $0.1 million at December 31, 2012. The Company recorded mark-to-market gains of $3.3 million and losses of $3.2 million for the years ended December 31, 2012 and 2011, respectively. These mark-to-market adjustments are reflected in fair value adjustments, net. The Company recorded realized gains of $0.6 million, realized losses of $1.6 million, and realized gains of $0.4 million in production costs applicable to sales during the years ended December 31, 2013, 2012, and 2011, respectively.
	Gold Lease Facility
	On December 12, 2008, the Company entered into a gold lease facility with Mitsubishi International Corporation (“MIC”). This gold lease facility was terminated in 2011. The Company recorded realized losses of $2.3 million for the year ended December 31, 2011, included in fair value adjustments, net.
	Concentrate Sales Contracts
	The Company enters into concentrate sales contracts with third-party smelters. The contracts, in general, provide for a provisional payment based upon provisional 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 adjusted to fair value through earnings each period until the date of final settlement. At December 31, 2013, the Company had outstanding provisionally priced sales of $42.4 million, consisting of 0.2 million ounces of silver and 30,780 ounces of gold. At December 31, 2012, the Company had outstanding provisionally priced sales of $33.2 million consisting of 0.4 million ounces of silver and 11,957 ounces of gold.
	Commodity Derivatives
	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 strike 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. The contracts expire during the first quarter of 2014. At December 31, 2013, the fair market value of these contracts was a net asset of $0.1 million.
	At December 31, 2012, the Company had written outstanding call options requiring it to deliver 97,000 ounces of gold at a weighted average price of $1,968 per ounce if the market price of gold exceeds that price. At December 31, 2012, the Company had outstanding put options allowing it to sell 122,000 ounces of gold at a weighted average price of $968 per ounce if the market price of gold were to fall below that price. At December 31, 2012, the fair market value of these contracts was a net liability of $9.3 million. During the year ended December 31, 2013, the Company settled the remaining 97,000 ounces of gold put options and 84,500 ounces of gold call options for a net realized gain of $0.4 million.
	During the year ended December 31, 2011, the Company settled an outstanding forward gold contract of 10,000 ounces at a fixed price of $1,380 per ounce, which resulted in a realized gain of $0.5 million.
	During the year ended December 31, 2013, 2012, and 2011, the Company recorded unrealized gains of $8.9 million, unrealized gains of $8.6 million, and unrealized losses of $3.1 million, respectively, related to the outstanding options which was included in fair value adjustments, net.
	In connection with the sale of the Cerro Bayo mine to Mandalay Resources Corporation, the Company received the right to 125,000 ounces of silver to be delivered in six equal quarterly installments commencing in the third quarter of 2011. The Company recognized mark-to-market losses of $0.6 million for the year ended December 31, 2012 and mark-to-market gains of $0.8 million for the year ended December 31, 2011 associated with this silver.
	At December 31, 2013, 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	$	29,831			$	24,764			$	15,141			$	—
	Average gold price in excess of minimum contractual deduction	498				494				490				—
	Notional ounces	59,856				50,153				30,922				—
	Mexican peso forward purchase contracts	$	12,000			$	—			$	—			$	—
	Average rate (MXN/$)	12.21				—				—				—
	Mexican peso notional amount	146,460				—				—				—
	Mexican peso put options purchased	$	45,000			$	—			$	—			$	—
	Average rate (MXN/$)	12.6				—				—				—
	Mexican peso notional amount	567,150				—				—				—
	Mexican peso call options sold	$	45,000			$	—			$	—			$	—
	Average rate (MXN/$)	14.8				—				—				—
	Mexican peso notional amount	666,075				—				—				—
	Silver concentrate sales agreements	$	3,645			$	—			$	—			$	—
	Average silver price	$	20.98			$	—			$	—			$	—
	Notional ounces	173,752				—				—				—
	Gold concentrate sales agreements	$	38,760			$	—			$	—			$	—
	Average gold price	$	1,259			$	—			$	—			$	—
	Notional ounces	30,780				—				—				—
	Gold put options purchased	$	274			$	—			$	—			$	—
	Average gold strike price	$	1,150			$	—			$	—			$	—
	Notional ounces	25,000				—				—				—
	Silver put options purchased	$	238			$	—			$	—			$	—
	Average silver strike price	$	17			$	—			$	—			$	—
	Notional ounces	1,250,000				—				—				—
	The following summarizes the classification of the fair value of the derivative instruments (in thousands):
		December 31, 2013
		Prepaid				Accrued				Other long-				Current		Non-current
		expenses and				liabilities and				term				portion of		portion of
		other				other				liabilities				royalty		royalty
														obligation		obligation
	Foreign exchange contracts, peso	$	38			$	947			$	—			$	—	$	—
	Palmarejo gold production royalty	—				—				—				17,650		22,688
	Gold and silver put options	135				—				—				—		—
	Concentrate sales contracts	11				693				—				—		—
		$	184			$	1,640			$	—			$	17,650	$	22,688
		December 31, 2012
		Prepaid				Accrued				Other long-				Current		Non-current
		expenses and				liabilities and				term				portion of		portion of
		other				other				Liabilities				royalty		royalty
														obligation		obligation
	Foreign exchange contracts, peso	$	376			$	300			$	—			$	—	$	—
	Palmarejo gold production royalty	—				—				—				41,146		103,952
	Gold and silver put options, net	—				2,025				7,274				—		—
Concentrate sales contracts	1,030				163				—				—		—
	$	1,406			$	2,488			$	7,274			$	41,146	$	103,952
The following represent mark-to-market gains (losses) on derivative instruments for the years ended December 31, 2013, 2012, and 2011 (in thousands):
			Year ended December 31,
Financial statement line	Derivative		2013				2012				2011
Sales of metal	Concentrate sales contracts		$	(1,995	)		$	1,682			$	2,505
Production costs applicable to sales	Forward foreign exchange contracts		589				(1,621		)		383
Fair value adjustments, net	Gold lease facility		—				—				(132		)
Fair value adjustments, net	Forward foreign exchange contracts		(985		)		3,264				(3,192		)
Fair value adjustments, net	Forward gold contract		—				—				34
Fair value adjustments, net	Silver ounces receivable		—				213				(276		)
Fair value adjustments, net	Palmarejo gold royalty		76,200				(31,053		)		(40,046		)
Fair value adjustments, net	Put and call options		7,119				4,089				(8,438		)
			$	80,928			$	(23,426	)		$	(49,162	)
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.

Investment_in_Marketable_Secur

Investment in Marketable Securities	12 Months Ended
	Dec. 31, 2013
Investment in Marketable Securities [Abstract]	'
INVESTMENTS	'
	INVESTMENTS
	The Company 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 December 31, 2013
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable securities	$	17,649			$	(3,300	)		$	172			$	14,521
		At December 31, 2012
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable securities	$	34,786			$	(10,443	)		$	2,722			$	27,065
	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 December 31, 2013 (in thousands):
		Less than twelve months							Twelve months or more							Total
		Unrealized Losses			Fair Value				Unrealized Losses			Fair Value				Unrealized Losses			Fair Value
	Marketable equity securities	$	(3,300	)	$	4,146			$	—		$	—			$	(3,300	)	$	4,146
	In the years ended December 31, 2013 and 2012, the Company recognized a net unrealized loss of $13.9 million and an unrealized loss of $3.4 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 $18.3 million and $0.6 million for the year ended December 31, 2013 and 2012, respectively.
	The Company had $1.0 million of short-term investments at December 31, 2012, primarily certificates of deposit with maturity dates of less than one year.

Receivables

Receivables	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
RECEIVABLES	'
	RECEIVABLES
	Receivables consist of the following (in thousands):
		December 31, 2013		31-Dec-12
	Receivables - current
	Accounts receivable - trade	$	17,303	$	8,701
	Refundable income tax	6,240		9,331
	Refundable value added tax	49,168		40,020
	Accounts receivable - other	8,363		4,386
		$	81,074	$	62,438
	Receivables - non-current
	Refundable value added tax	$	36,574	$	48,767
	Trade receivables and other receivable balances are reported at outstanding principal amounts, net of an allowance for doubtful accounts. Management evaluates the collectability of receivable account balances to determine the allowance, if any. There were no allowances against receivable balances at December 31, 2013 or December 31, 2012.

Metal_and_Other_Inventory

Metal and Other Inventory	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
METAL AND OTHER INVENTORY	'
	METAL AND OTHER INVENTORY
	Metal and other inventory consist of the following (in thousands):
		December 31, 2013		31-Dec-12
	Concentrate and doré inventory	$	67,105	$	91,130
	Supplies	64,918		79,540
		$	132,023	$	170,670

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
PROPERTY, PLANT AND EQUIPMENT	'
	PROPERTY, PLANT AND EQUIPMENT
	Property, plant and equipment consist of the following (in thousands):
		December 31, 2013			31-Dec-12
	Land	$	1,764		$	2,010
	Buildings and improvements	489,535			581,286
	Machinery and equipment	365,783			360,199
	Capitalized leases for machinery, equipment, buildings, and land	16,133			35,129
		873,215			978,624
	Accumulated amortization	(395,520		)	(313,067		)
		477,695			665,557
	Construction in progress	8,578			18,303
		$	486,273		$	683,860
	Rent expense for operating lease agreements was $16.7 million, $14.1 million and $14.2 million for the years ended December 31, 2013, 2012 and 2011, respectively.

Mining_Properties

Mining Properties	12 Months Ended
	Dec. 31, 2013
Mining Properties [Abstract]	'
MINING PROPERTIES	'
	MINING PROPERTIES
	Mining properties consist of the following (in thousands):
	December 31, 2013	Palmarejo			San			Kensington			Rochester			La Preciosa			Joaquin		Coeur Capital			Total
					Bartolomé
	Mining properties	$	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
	Total mining properties	$	888,087		$	66,409		$	188,319		$	47,218		$	408,352		$	93,429	$	59,687		$	1,751,501
	December 31, 2012	Palmarejo			San			Kensington			Rochester			Endeavor			Joaquin		Total
					Bartolomé
	Mining properties	$	155,722		$	70,322		$	333,619		$	114,973		$	—		$	—	$	674,636
	Accumulated amortization	(82,037		)	(18,439		)	(46,649		)	(100,437		)	—			—		(247,562		)
		73,685			51,883			286,970			14,536			—			—		427,074
	Mineral interests	1,658,389			26,642			—			—			44,033			93,571		1,822,635
	Accumulated amortization	(235,795		)	(7,338		)	—			—			(14,625		)	—		(257,758		)
		1,422,594			19,304			—			—			29,408			93,571		1,564,877
	Total mining properties	$	1,496,279		$	71,187		$	286,970		$	14,536		$	29,408		$	93,571	$	1,991,951
	Palmarejo is located in the State of Chihuahua in northern Mexico, and its principal silver and gold properties are collectively referred to as the “Palmarejo mine.” The Palmarejo mine commenced production in April 2009.
	The San Bartolomé mine is a silver mine located near the city of Potosi, Bolivia. The mineral rights for the San Bartolomé project are held through long-term joint venture/lease agreements with several local independent mining co-operatives and the Bolivian state owned mining organization, (“COMIBOL”). The Company commenced commercial production at San Bartolomé in June 2008.
	The Kensington mine is an underground gold mine and consists of the Kensington and adjacent Jualin properties located on the east side of the Lynn Canal about 45 miles north-northwest of Juneau, Alaska. The Company commenced commercial production in July of 2010.
	The Company has conducted operations at the Rochester mine, located in Western Nevada, since September 1986. The mine utilizes the heap-leaching process to extract both silver and gold from ore mined using open pit methods. Rochester’s primary product is silver with gold produced as a by-product.
	On April 16, 2013, the Company completed its acquisition of Orko Silver Corporation (“Orko”), which holds the La Preciosa silver-gold project in Durango, Mexico. Please see Note 10 -- Acquisitions for more information.
	The Joaquin project is located in the Santa Cruz province of southern Argentina. The Company commenced exploration of this large property located north of the Company's Martha silver mine in November 2007. Since that time, the Company has defined silver and gold mineralization in two deposits at Joaquin, La Negra and La Morocha, collectively referred to as the "Joaquin Project," and has recently commenced work on detailed drilling and other technical, economic and environmental programs.
	The Company's mineral interests held by Coeur Capital primarily consist of the Endeavor silver stream, the royalty interests obtained through the acquisition of Global Royalty Corp., and the Cerro Bayo royalty. In May 2005, CDE Australia Pty Ltd, (“CDE Australia”), a wholly-owned subsidiary of Coeur Capital, acquired the silver production and reserves, up to a maximum 17.7 million payable ounces, contained at the Endeavor mine in Australia, which is owned and operated by Cobar Operations Pty. Limited (“Cobar”), a wholly-owned subsidiary of CBH Resources Ltd. (“CBH”). In March 2006, CDE Australia entered into an amended agreement under which it owns all silver production and reserves up to a total of 20.0 million payable ounces. CDE Australia has received approximately 4.8 million payable ounces to-date and the current ore reserve contains approximately 3.7 million payable ounces based on current metallurgical recovery and current smelter contract terms.
	Coeur Capital also holds a tiered royalty on McEwen Mining Inc.’s El Gallo/Magistral mine in Mexico, currently paying a 3.5% NSR, a 1.5% NSR on Dynasty Metals & Mining, Inc.’s Zaruma mine in Ecuador, and a 2.0% NSR on Mandalay Resources Corp.’s Cerro Bayo mine in Chile. Please see Note 10 -- Acquisitions for more information related to the Global Royalty acquisition.

Debt

Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
DEBT	'
	DEBT
	The current and non-current portions of long-term debt and capital lease obligations at December 31, 2013 and December 31, 2012 are as follows (in thousands):
		December 31,						December 31,
		2013						2012
		Current			Non-Current			Current			Non-Current
	3.25% Convertible Senior Notes due 2028	$	—		$	5,334		$	48,081		$	—
	7.875% Senior Notes due 2021	—			300,000			—			—
	Capital lease obligations	2,505			796			7,902			3,460
		$	2,505		$	306,130		$	55,983		$	3,460
	Minimum future lease payments under capital and operating leases with terms longer than one year are $8.2 million in 2014, $5.1 million in 2015, $1.6 million in 2016, $0.8 million in 2017, $0.8 million in 2018, and $3.3 million thereafter.
	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 its outstanding 3.25% Convertible Senior Notes due 2028. 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 as of December 31, 2013.
	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 “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.
	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 provides 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 twelve months ended December 31, 2013 and 2012, respectively, was $0.6 million and $0.2 million, charged to interest expense. On January 16, 2014, the Company and the Borrowers entered into that certain 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.
	The term of the Revolving Credit Facility is four years. Amounts may be borrowed under the Revolving Credit Facility to finance working capital and general corporate purposes of the Company and its subsidiaries, including the payment of fees and expenses incurred in connection with the Revolving Credit Facility. The obligations under the Revolving Credit Facility will be secured by substantially all of the assets of the Company and its domestic subsidiaries, including the land, mineral rights and infrastructure at the Kensington and Rochester mines, as well as a pledge of the shares of certain of the Company's subsidiaries.
	Borrowings under the Revolving Credit Facility, as amended by the Amendment, bear interest at a rate selected by the Borrowers equal to either LIBOR plus a margin of 2.25% to 4.00% or an alternate base rate plus a margin of 1.25% to 3.00%, with the margin determined by reference to the Company's ratio of consolidated debt to adjusted EBITDA.
	Voluntary prepayments of the loans and voluntary reductions of the unutilized portion of the commitments under the Revolving Credit Facility are permitted without prepayment premium or penalty, subject to payment of customary LIBOR breakage costs. Amounts so repaid may be re-borrowed subject to customary requirements.
	The Revolving Credit Facility, as amended by the Amendment, contains representations and warranties, events of default and affirmative and negative covenants that are usual and customary, including covenants that, among other things, restrict the ability of the Company and its subsidiaries to incur additional debt, incur or permit liens on assets, make investments and acquisitions, consolidate or merge with any other company, engage in asset sales and make dividends and distributions and share repurchases. The Revolving Credit Facility, as amended by the Amendment, also contains financial covenants that require (i) the ratio of consolidated debt to adjusted EBITDA to be not greater than 3.25 to 1.00 for the quarter ended December 31, 2013 and not greater than 4.75 to 1.00 for any fiscal quarter ending after October 1, 2015 (for quarters ending between January 1, 2014 to September 30, 2015, the ratio of consolidated debt to adjusted EBITDA will not be tested), (ii) the ratio of adjusted EBITDA to interest expense to be not less than 3.00 to 1.00 for fiscal quarters ending between October 1, 2013 and June 30, 2014, after which the ratio may not be less than (a) 2.75 to 1.00 for the quarter ending September 30, 2014, (b) 1.50 to 1.00 for the quarters ended December 31, 2014 and March 31, 2015, (c) 2.00 to 1.00 for the quarter ending June 30, 2015, (d) 2.75 to 1.00 for the quarters ending September 30, 2015 and December 31, 2015 and (e) 3.00 to 1.00 for any quarter ending after January 1, 2016, (iii) the tangible net worth to be not less than the greater of (a) $900 million and (b)(1) for quarters ending between October 1, 2013 and September 30, 2014, 85% of our tangible net worth as of the fiscal year ending December 31, 2013 and (2) for quarters ending thereafter, 85% of the tangible net worth as of December 31 of the previous fiscal year plus 25% of net income, if positive, for the period after December 31 of such previous fiscal year to the date of measurement, or minus any net losses with limits of $50 million on any net losses in any fiscal year, (iv) minimum adjusted EBITDA to be at least $100 million for the most recently ended four fiscal quarter period for quarters ending between January 1, 2014 and September 30, 2014, after which minimum adjusted EBITDA must be at least (a) $50 million for the fiscal quarters ending December 31, 2014 and March 31, 2015, (b) $75 million for the fiscal quarter ending June 30, 2015, (c) $100 million for the fiscal quarters ending September 30, 2015 and December 31, 2015 and (d) $110 million for any fiscal quarter after January 1, 2016, (v) the ratio of consolidated secured debt to adjusted EBITDA, tested quarterly, to be not greater than 1.25 to 1.00, and (vi) the minimum cash balance, tested quarterly, to be not less than $50 million. The Amendment further restricted the Company's ability to pay dividends and make share repurchases for so long as the ratio of consolidated debt to adjusted EBITDA is greater than 3.00 to 1.00.
	The Company was in compliance with all covenants under the Revolving Credit Facility as of December 31, 2013. As of December 31, 2013, no amounts were outstanding under the Revolving Credit Facility.
	Lines of Credit
	At December 31, 2013, Manquiri had two outstanding lines of credit supporting value added tax recoveries in Bolivia. The lines are held with Banco Bisa, $7.0 million bearing interest at 2.75% per annum, and Banco de Crédito, $4.0 million bearing interest at 2.5% per annum. There was no balance outstanding on the two lines of credit at December 31, 2013 and December 31, 2012, respectively.
	Kensington Term Facility
	On August 16, 2012, Coeur Alaska repaid all obligations and indebtedness outstanding under the Coeur Alaska, Inc. Term Facility Agreement, as amended and restated on December 20, 2010, with Credit Suisse AG (the "Kensington Term Facility"), which totaled approximately $68.6 million and resulted in a $1.0 million loss on the debt extinguishment in 2012. Upon payment in full, the Kensington Term Facility was terminated and all of the liens granted under the Kensington Term Facility were released.
	As a condition to the Kensington Term Facility with Credit Suisse, the Company agreed to enter into a gold hedging program which protects a minimum of 243,750 ounces of gold production over the life of the term facility against the risk associated with fluctuations in the market price of gold. This program consists of a series of zero cost collars which consist of a floor price and a ceiling price of gold. Coeur Alaska has transferred these hedge positions to Wells Fargo Bank, N.A., as hedge provider. Call options protecting 97,000 ounces of gold were outstanding at December 31, 2012. The weighted average strike price of the call options was $1,968. Put options protecting 122,000 ounces of gold were outstanding at December 31, 2012. The weighted average strike price of the put options was $968. During the year ended December 31, 2013, the Company unwound the gold hedging program.
	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 $400 per ounce, subject to a 1% annual inflation compounding adjustment commencing January 21, 2013. As of December 31, 2013, payments had been made on a total of 259,069 ounces of gold with further payments to be made on an additional 140,931 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 years ended December 31, 2013 and 2012, the Company paid $57.0 million and $74.7 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 years ended December 31, 2013, 2012, and 2011 of $17.6 million, $19.1 million, and $22.2 million respectively. As of December 31, 2013 and 2012, the remaining minimum obligation under the royalty agreement was $51.2 million and $61.9 million, respectively.
	Interest Expense
	Interest expense is made up of the following (in thousands):
		Years Ended December 31,
		2013			2012			2011
		(in thousands)
	3.25% Convertible Senior Notes due 2028	$	466		$	1,581		$	1,581
	7.875 % Senior Notes due 2021	21,853			—			—
	Revolving Credit Facility	612			213			—
	1.25% Convertible Senior Notes due 2024 (terminated in 2011)	—			—			1
	Senior Term Notes (terminated in 2011)	—			—			1,381
	Kensington Term Facility (terminated in 2012)	—			2,339			4,383
	Capital lease obligations	415			997			1,620
	Other debt obligations	291			881			1,379
	Accretion of Franco Nevada royalty obligation	17,641			19,139			22,230
	Amortization of debt issuance costs	2,143			1,146			2,050
	Accretion of debt discount	576			2,536			2,324
	Capitalized interest	(2,694		)	(2,663		)	(2,175		)
	Total interest expense, net of capitalized interest	$	41,303		$	26,169		$	34,774

Supplemental_Guarantor_Informa

Supplemental Guarantor Information	12 Months Ended
	Dec. 31, 2013
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 $300 million aggregate principal amount of 7.875% senior notes issued by Coeur on January 29, 2013. 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, the guarantees are full and unconditional and no other subsidiary of Coeur guaranteed any security issued under the Registration Statement. There are no restrictions on the ability of Coeur to obtain funds from its subsidiaries by dividend or loan.
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	YEAR ENDED DECEMBER 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Sales of metal	$	—		$	268,023		$	477,971		$	—		$	745,994
	Production costs applicable to sales	—			(182,444		)	(281,219		)	—			(463,663		)
	Depreciation, depletion and amortization	(1,066		)	(73,802		)	(158,011		)	—			(232,879		)
	Gross profit	(1,066		)	11,777			38,741			—			49,452
	COSTS AND EXPENSES
	General and administrative	50,213			3,245			1,885			—			55,343
	Exploration	1,602			8,920			11,838			—			22,360
	Litigation settlement	—			32,046			—			—			32,046
	Write-downs	—			130,694			642,299			—			772,993
	Pre-development, care, maintenance and other	—			946			10,923			—			11,869
	Total costs and expenses	51,815			175,851			666,945			—			894,611
	OPERATING LOSS	(52,881		)	(164,074		)	(628,204		)	—			(845,159		)
	OTHER INCOME AND EXPENSE
	Fair value adjustments, net	(1,346		)	7,896			76,218			—			82,768
	Other than temporary impairment of marketable securities	(18,097		)	(211		)	—			—			(18,308		)
	Interest income and other, net	13,408			(1,539		)	4,602			(3,148		)	13,323
	Interest expense, net of capitalized interest	(25,652		)	(445		)	(18,354		)	3,148			(41,303		)
	Total other income and expense, net	(31,687		)	5,701			62,466			—			36,480
	Loss before income taxes	(84,568		)	(158,373		)	(565,738		)	—			(808,679		)
	Income tax benefit	78,332			(155		)	79,939			—			158,116
	Total loss after taxes	(6,236		)	(158,528		)	(485,799		)	—			(650,563		)
	Equity income (loss) in consolidated subsidiaries	(644,327		)	(68		)	—			644,395			—
	NET INCOME (LOSS)	$	(650,563	)	$	(158,596	)	$	(485,799	)	$	644,395		$	(650,563	)
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on available for sale securities	(8,489		)	(552		)	—			552			(8,489		)
	Reclassification adjustments for losses included in net income	11,221			211			—			(211		)	11,221
	Reclassification adjustments for realized loss on sale of marketable securities	83			—			—			—			83
	Other comprehensive income (loss)	2,815			(341		)	—			341			2,815
	COMPREHENSIVE INCOME (LOSS)	$	(647,748	)	$	(158,937	)	$	(485,799	)	$	644,736		$	(647,748	)
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	YEAR ENDED DECEMBER 31, 2012
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Sales of metal	$	—		$	243,380		$	652,112		$	—		$	895,492
	Production costs applicable to sales	—			(159,151		)	(295,411		)	—			(454,562		)
	Depreciation, depletion and amortization	(521		)	(49,750		)	(168,586		)	—			(218,857		)
	Gross profit	(521		)	34,479			188,115			—			222,073
	COSTS AND EXPENSES
	General and administrative	30,699			1,101			1,177			—			32,977
	Exploration	1,946			7,930			16,394			—			26,270
	Write-downs	—			—			5,825			—			5,825
	Pre-development, care, maintenance and other	—			(362		)	1,623			—			1,261
	Total costs and expenses	32,645			8,669			25,019			—			66,333
	OPERATING INCOME (LOSS)	(33,166		)	25,810			163,096			—			155,740
	OTHER INCOME AND EXPENSE
	Loss on debt extinguishments	—			(1,036		)	—			—			(1,036		)
	Fair value adjustments, net	3,477			4,089			(31,053		)	—			(23,487		)
	Other than temporary impairment of marketable securities	(605		)	—			—			—			(605		)
	Interest income and other, net	5,744			859			13,071			(4,633		)	15,041
	Interest expense, net of capitalized interest	(4,158		)	(2,997		)	(23,647		)	4,633			(26,169		)
	Total other income and expense, net	4,458			915			(41,629		)	—			(36,256		)
	Income (loss) before income taxes	(28,708		)	26,725			121,467			—			119,484
	Income tax provision	(3,844		)	(2,930		)	(64,033		)	—			(70,807		)
	Total income (loss) after taxes	(32,552		)	23,795			57,434			—			48,677
	Equity income (loss) in consolidated subsidiaries	81,229			—			—			(81,229		)	—
	NET INCOME (LOSS)	$	48,677		$	23,795		$	57,434		$	(81,229	)	$	48,677
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized loss on available for sale securities	(3,351		)	—			—			—			(3,351		)
	Reclassification adjustments for losses included in net income	605			—			—			—			605
Other comprehensive loss	(2,746		)	—			—			—			(2,746		)
COMPREHENSIVE INCOME (LOSS)	$	45,931		$	23,795		$	57,434		$	(81,229	)	$	45,931
CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
YEAR ENDED DECEMBER 31, 2011
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Sales of metal	$	—		$	208,517		$	812,683		$	—		$	1,021,200
Production costs applicable to sales	—			(129,520		)	(290,027		)	—			(419,547		)
Depreciation, depletion and amortization	(450		)	(38,670		)	(185,380		)	—			(224,500		)
Gross profit	(450		)	40,327			337,276			—			377,153
COSTS AND EXPENSES
General and administrative	28,407			937			2,035			—			31,379
Exploration	1,504			3,754			13,870			—			19,128
Pre-development, care, maintenance and other	—			19,311			130			—			19,441
Total costs and expenses	29,911			24,002			16,035			—			69,948
OPERATING INCOME (LOSS)	(30,361		)	16,325			321,241			—			307,205
OTHER INCOME AND EXPENSE
Loss on debt extinguishments	(5,526		)	—			—			—			(5,526		)
Fair value adjustments, net	(3,566		)	(8,438		)	(40,046		)	—			(52,050		)
Interest income and other, net	8,871			1,170			(7,372		)	(9,279		)	(6,610		)
Interest expense, net of capitalized interest	(6,328		)	(4,910		)	(32,815		)	9,279			(34,774		)
Total other income and expense, net	(6,549		)	(12,178		)	(80,233		)	—			(98,960		)
Income (loss) before income taxes	(36,910		)	4,147			241,008			—			208,245
Income tax provision	(20,904		)	(440		)	(93,402		)	—			(114,746		)
Total income (loss) after taxes	(57,814		)	3,707			147,606			—			93,499
Equity income (loss) in consolidated subsidiaries	151,313			—			—			(151,313		)	—
NET INCOME (LOSS)	$	93,499		$	3,707		$	147,606		$	(151,313	)	$	93,499
OTHER COMPREHENSIVE INCOME (LOSS) net of tax:
Unrealized loss on available for sale securities	(4,975		)	—			—			—			(4,975		)
Reclassification adjustments for losses included in net income	—			—			—			—			—
Other comprehensive loss	(4,975		)	—			—			—			(4,975		)
COMPREHENSIVE INCOME (LOSS)	$	88,524		$	3,707		$	147,606		$	(151,313	)	$	88,524
CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2013
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Cash provided by operating activities	$	(701,653	)	$	17,456		$	151,491		$	646,173		113,467
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of short term investments and marketable securities	(2,921		)	(66		)	(5,065		)	—			(8,052		)
Proceeds from sales and maturities of short term investments	29,274			75			5,447			—			34,796
Capital expenditures	(3,573		)	(50,810		)	(46,430		)	—			(100,813		)
Acquisitions	(113,214		)	(3,684		)	—			—			(116,898		)
Other	3,266			444			768			—			4,478
Investments in consolidated subsidiaries	642,617			68			3,488			(646,173		)	—
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	555,449			(53,973		)	(41,792		)	(646,173		)	(186,489		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of notes and bank borrowings	300,000			—			—			—			300,000
Payments on long-term debt, capital leases, and associated costs	(52,568		)	(3,171		)	(4,889		)	—			(60,628		)
Payments on gold production royalty	—			—			(57,034		)	—			(57,034		)
Share repurchases	(27,552		)	—			—			—			(27,552		)
Net intercompany borrowings (lending)	(22,874		)	40,279			(17,405		)	—			—
Other	(514		)	—			—			—			(514		)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	196,492			37,108			(79,328		)	—			154,272
NET CHANGE IN CASH AND CASH EQUIVALENTS	50,288			591			30,371			—			81,250
Cash and cash equivalents at beginning of period	86,788			400			38,252			—			125,440
Cash and cash equivalents at end of period	$	137,076		$	991		$	68,623		$	—		$	206,690
CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2012
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Cash provided by operating activities	$	58,754		$	37,426		$	256,683		$	(81,229	)	$	271,634
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of short term investments and marketable securities	(12,913		)	(46		)	—			—			(12,959		)
Proceeds from sales and maturities of short term investments	21,590			45			60			—			21,695
Capital expenditures	(1,531		)	(48,788		)	(65,322		)	—			(115,641		)
Acquisition of Joaquin mineral rights	(29,338		)	—			41			—			(29,297		)
Other	3,538			130			(581		)	—			3,087
Investments in consolidated subsidiaries	(81,229		)	—			—			81,229			—
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(99,883		)	(48,659		)	(65,802		)	81,229			(133,115		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Payments on long-term debt, capital leases, and associated costs	(4,005		)	(79,839		)	(13,326		)	—			(97,170		)
Payments on gold production royalty	—			—			(74,734		)	—			(74,734		)
Reductions of restricted assets associated with the Kensington Term Facility	—			4,645			—			—			4,645
Share repurchases	(19,971		)	—			—			—			(19,971		)
Net intercompany borrowings (lending)	67,082			86,394			(153,476		)	—			—
Other	(861		)	—			—			—			(861		)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	42,245			11,200			(241,536		)	—			(188,091		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	1,116			(33		)	(50,655		)	—			(49,572		)
Cash and cash equivalents at beginning of period	85,672			433			88,907			—			175,012
Cash and cash equivalents at end of period	$	86,788		$	400		$	38,252		$	—		$	125,440
CONSOLIDATING STATEMENT OF CASH FLOWS
YEAR ENDED DECEMBER 31, 2011
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
CASH FLOWS FROM OPERATING ACTIVITIES:
Cash provided by operating activities	$	132,318		$	38,152		$	397,016		$	(151,313	)	$	416,173
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of short term investments and marketable securities	(49,321		)	(60		)	(120		)	—			(49,501		)
Proceeds from sales and maturities of short term investments	6,138			48			60			—			6,246
Capital expenditures	(567		)	(61,288		)	(58,133		)	—			(119,988		)
Other	1,216			903			163			—			2,282
Investments in consolidated subsidiaries	(151,313		)	—			—			151,313			—
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(193,847		)	(60,397		)	(58,030		)	151,313			(160,961		)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of notes and bank borrowings	—			27,500			—			—			27,500
Payments on long-term debt, capital leases, and associated costs	(37,983		)	(30,493		)	(17,043		)	—			(85,519		)
Additions to funds held financing	—			(1,326		)	—			—			(1,326		)
Payments on gold production royalty	—			—			(73,191		)	—			(73,191		)
Payments on gold lease facility	(13,800		)	—			—			—			(13,800		)
Net intercompany borrowings (lending)	163,224			26,239			(189,463		)	—			—
Other	18			—			—			—			18
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	111,459			21,920			(279,697		)	—			(146,318		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	49,930			(325		)	59,289			—			108,894
Cash and cash equivalents at beginning of period	35,742			758			29,618			—			66,118
Cash and cash equivalents at end of period	$	85,672		$	433		$	88,907		$	—		$	175,012
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 pad	—			50,495			—			—			50,495
Metal and other 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 pad	—			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	1,545			950			4,348			—			6,843
Accrued income taxes	34			—			3,085			—			3,119
Accrued payroll and related benefits	5,152			7,062			6,115			—			18,329
Accrued interest payable	9,962			4			1,063			(1,054		)	9,975
Debt and capital leases	—			1,262			309,472			(308,229		)	2,505
Royalty obligations	—			3,934			44,085			—			48,019
Reclamation and mine closure	—			—			794			119			913
Deferred tax liabilities	—			—			1,011			—			1,011
	18,656			29,076			405,993			(309,164		)	144,561
NON-CURRENT LIABILITIES
Debt and capital leases	305,335			255			64,820			(64,280		)	306,130
Royalty obligations	—			17,696			47,446			—			65,142
Reclamation and mine closure	—			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
CONSOLIDATING BALANCE SHEET
31-Dec-12
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
ASSETS
CURRENT ASSETS
Cash and cash equivalents	$	86,788		$	400		$	38,252		$	—		$	125,440
Investments	999			—			—			—			999
Receivables	8,520			7,643			46,275			—			62,438
Ore on leach pad	—			22,991			—			—			22,991
Metal and other inventory	—			45,906			124,764			—			170,670
Deferred tax assets	—			—			2,458			—			2,458
Prepaid expenses and other	3,395			5,947			11,844			—			21,186
	99,702			82,887			223,593			—			406,182
NON-CURRENT ASSETS
Property, plant and equipment, net	4,183			208,857			470,820			—			683,860
Mining properties, net	—			301,506			1,690,445			—			1,991,951
Ore on leach pad	—			21,356			—			—			21,356
Restricted assets	18,922			60			5,988			—			24,970
Marketable securities	27,065			—			—			—			27,065
Receivables	—			—			48,767			—			48,767
Debt issuance costs, net	3,713			—			—			—			3,713
Deferred tax assets	955			—			—			—			955
Net investment in subsidiaries	1,553,434			—			1,285,862			(2,839,296		)	—
Other	39,120			12,360			318,330			(357,228		)	12,582
TOTAL ASSETS	$	1,747,094		$	627,026		$	4,043,805		$	(3,196,524	)	$	3,221,401
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES
Accounts payable	$	2,954		$	17,211		$	37,317		$	—		$	57,482
Accrued liabilities and other	1,418			4,014			4,570			—			10,002
Accrued income taxes	257			—			26,851			—			27,108
Accrued payroll and related benefits	7,477			8,158			5,671			—			21,306
Accrued interest payable	463			5			1,002			(992		)	478
Debt and capital leases	48,081			3,013			309,539			(304,650		)	55,983
Royalty obligations	—			—			65,104			—			65,104
Reclamation and mine closure	—			—			1,445			(777		)	668
Deferred tax liabilities	—			—			121			—			121
	60,650			32,401			451,620			(306,419		)	238,252
NON-CURRENT LIABILITIES
Debt and capital leases	—			1,675			53,367			(51,582		)	3,460
Royalty obligations	—			—			141,879			—			141,879
Reclamation and mine closure	—			23,149			10,744			777			34,670
Deferred tax liabilities	115,425			—			462,063			—			577,488
Other long-term liabilities	955			8,086			18,331			—			27,372
Intercompany payable (receivable)	(628,216		)	390,480			237,736			—			—
	(511,836		)	423,390			924,120			(50,805		)	784,869
STOCKHOLDERS’ EQUITY
Common stock	903			350			22,760			(23,110		)	903
Additional paid-in capital	2,601,254			107,734			2,748,173			(2,855,907		)	2,601,254
Accumulated deficit	(396,156		)	63,151			(102,868		)	39,717			(396,156		)
Accumulated other comprehensive loss	(7,721		)	—			—			—			(7,721		)
	2,198,280			171,235			2,668,065			(2,839,300		)	2,198,280
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,747,094		$	627,026		$	4,043,805		$	(3,196,524	)	$	3,221,401

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
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 Minera Manquiri S.A. at the San Bartolomé mine in Bolivia. The San Bartolomé mine labor agreement, which became effective January 28, 2010, does not have a fixed term and is in effect for 2014. As of December 31, 2013, approximately 10.4% 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.
	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 (income) expense was ($1.5) million, $3.5 million, and $2.2 million for the years ended December 31, 2013, 2012, and 2011, respectively.
	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 in cash on a quarterly basis. For each calendar quarter, the royalty will be payable on the actual sales prices received at the time of sale (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. Payments on the royalty obligation will occur quarterly reducing the carrying amount of the royalty liability and changes in silver and gold prices will result in the recognition of mark-to-market gains or losses in Fair value adjustments, net, in the 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 12 -- 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.
	Settlement of Unpatented Mining Claims Dispute at Rochester in Nevada
	In the second quarter of 2013, Coeur Rochester settled all claims associated with a dispute involving ownership of unpatented mining claims surrounding the Coeur Rochester operation and, in connection therewith, agreed to make a one-time $10.0 million cash payment and granted the 3.4% net smelter returns royalty described above under "Rochester Production Royalties." The above settlement resulted in a $32.0 million charge in the second quarter of 2013.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information (Notes)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Cash Flow Information	'
	SUPPLEMENTAL CASH FLOW INFORMATION
	The following table sets forth non-cash financing and investing activities and other cash flow information for the years ended:
		Year Ended December 31,
	Non-cash financing and investing activities:	2013		2012		2011
	Capital expenditures(1)	$	1,183	$	3,402	$	2,936
	Capital lease obligations	—		1,857		4,510
	Non-cash capitalized interest	2,694		845		681
	Non-cash acquisitions and related deferred taxes	317,826		64,133		—
	Other cash flow information:
	Interest paid	14,139		6,092		11,033
	Capitalized interest	2,694		2,663		2,175
	Income taxes paid	26,585		54,680		44,396
	-1	Accrued capital expenditures are recognized in the consolidated statements of cash flows in the period in which they are paid.

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2013
Subsequent Events [Abstract]	'
SUBSEQUENT EVENTS	'
	SUBSEQUENT EVENTS
	Shelf Registration
	In January 2014, the Company filed with the Securities and Exchange Commission a shelf registration statement on Form S-3 which enables it to issue an indeterminate number or amount of common stock, preferred stock, debt securities, guarantees of debt securities and warrants from time to time at indeterminate prices.

Summary_of_Quarterly_Financial

Summary of Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Data [Abstract]	'
SUMMARY OF QUARTERLY FINANCIAL DATA (UNAUDITED)	'
	UMMARY OF QUARTERLY FINANCIAL DATA (UNAUDITED)
	The following table sets forth a summary of the unaudited quarterly results of operations for the years ended December 31, 2013 and 2012 (in thousands, except per share data):
		Q1		Q2			Q3			Q4
	2013
	Sales of metals	$	171,797	$	204,525		$	200,825		$	168,847
	Net income (loss)	12,270		(35,040		)	(46,265		)	(581,528		)
	Amortization	50,436		57,653			60,874			63,916
	Production costs	88,784		142,924			131,728			100,227
	Exploration expenses	6,841		6,774			3,305			5,440
	Other operating expenses (general and administrative, pre-development, and write-downs)	14,831		48,131			20,195			789,094
	Cash provided by operating activities	12,934		63,338			26,804			10,391
	Capital expenditures	12,827		27,201			32,726			28,059
	Basic net income (loss) per share	$	0.14	$	(0.35	)	$	(0.46	)	$	(5.77	)
	Diluted net income (loss) per share	$	0.14	$	(0.35	)	$	(0.46	)	$	(5.77	)
		Q1		Q2			Q3			Q4
	2012
	Sales of metals	$	204,564	$	254,406		$	230,593		$	205,929
	Net income (loss)	3,975		22,973			(15,821		)	37,550
	Amortization	52,592		61,024			52,844			52,397
	Production costs	92,542		131,182			124,365			106,473
	Exploration expenses	6,567		6,305			6,957			6,441
	Other operating expenses	8,664		13,680			11,836			5,883
	Cash provided by operating activities	17,002		113,203			79,735			61,694
	Capital expenditures	31,647		32,238			29,972			21,784
	Basic net income (loss) per share	$	0.04	$	0.26		$	(0.18	)	$	0.42
	Diluted net income (loss) per share	$	0.04	$	0.26		$	(0.18	)	$	0.42

Recovered_Sheet1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Principles of Consolidation	'
	Principles of Consolidation
	The consolidated financial statements include the wholly-owned subsidiaries of the Company, the most significant of which are Empresa Minera Manquiri S.A., Coeur Mexicana S.A. de C.V., Coeur Rochester, Inc., Coeur Alaska, Inc., and Coeur Capital. All significant intercompany balances and transactions have been eliminated. The Company's investments in entities in which it has less than 20% ownership interest are accounted for using the cost method.
Revenue Recognition	'
	Revenue Recognition
	Revenue is recognized, net of treatment and refining charges, when persuasive evidence of an arrangement exists, delivery has occurred, the price is fixed or determinable, no obligations remain and collection is probable.
	Under the Company’s concentrate sales contracts with third-party smelters, gold and silver prices are set on a specified future quotational period, typically one to three months, after the shipment date based on market prices. Revenues and production costs applicable to sales are recorded on a gross basis under these contracts at the time title passes to the buyer based on the forward price for the expected settlement period. The contracts, in general, provide for provisional payment based upon provisional assays and forward metal prices. Final settlement is based on the average applicable price for the specified future quotational period and generally occurs from three to six months after shipment. The Company’s 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 measured at the forward price at the time of sale. The embedded derivative does not qualify for hedge accounting and is adjusted to fair value through revenue each period until the date of final gold and silver settlement.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	Cash and cash equivalents include all highly-liquid investments with an original maturity of three months or less. The Company minimizes its credit risk by investing its cash and cash equivalents with major U.S. and international banks and financial institutions located principally in the United States with a minimum credit rating of A1, as defined by Standard & Poor’s. The Company’s management believes that no concentration of credit risk exists with respect to the investment of its cash and cash equivalents.
Receivables	'
	Receivables
	Trade receivables and other receivable balances are reported at outstanding principal amounts, net of an allowance for doubtful accounts, if deemed necessary. Management evaluates the collectability of receivable account balances to determine the allowance, if any. Management considers the other party's credit risk and financial condition, as well as current and projected economic and market conditions, in determining the amount of the allowance. Receivable balances are written off when management determines that the balance is uncollectible.
Ore on Leach Pad	'
	Ore on Leach Pads
	The heap leach process extracts silver and gold by placing ore on an impermeable pad and applying a diluted cyanide solution that dissolves a portion of the contained silver and gold, which are then recovered in metallurgical processes.
	The Company uses several integrated steps to scientifically measure the metal content of ore placed on the leach pads. As the ore body is drilled in preparation for the blasting process, samples are taken of the drill residue which are assayed to determine estimated quantities of contained metal. The Company estimates the quantity of ore by utilizing global positioning satellite survey techniques. The Company then processes the ore through crushing facilities where the output is again weighed and sampled for assaying. A metallurgical reconciliation with the data collected from the mining operation is completed with appropriate adjustments made to previous estimates. The crushed ore is then transported to the leach pad for application of the leaching solution. As the leach solution is collected from the leach pads, it is continuously sampled for assaying. The quantity of leach solution is measured by flow meters throughout the leaching and precipitation process. After precipitation, the product is converted to doré, which is the final product produced by the mine. The inventory is stated at lower of cost or market, with cost being determined using a weighted average cost method.
	The Company reported ore on the leach pads of $82.0 million as of December 31, 2013, and $44.3 million as of December 31, 2012. As of December 31, 2013, $50.5 million is reported as a current asset and $31.5 million is reported as a non-current asset. As of December 31, 2012, $23.0 million is reported as a current asset and $21.4 million is reported as a non-current asset. The historical cost of the metal that is expected to be extracted within twelve months is classified as current and the historical cost of metals contained within the broken ore that is expected to be extracted beyond twelve months is classified as non-current. Ore on leach pad is valued based on actual production costs incurred to produce and place ore on the leach pad, less costs allocated to minerals recovered through the leach process.
	The estimate of both the ultimate recovery expected over time and the quantity of metal that may be extracted relative to the time the leach process occurs requires the use of estimates, which are inherently inaccurate due to the nature of the leaching process. The quantities of metal contained in the ore are based upon actual weights and assay analysis. The rate at which the leach process extracts gold and silver from the crushed ore is based upon laboratory column tests and actual experience occurring over more than twenty years of leach pad operations at the Rochester mine. The assumptions used by the Company to measure metal content during each stage of the inventory conversion process includes estimated recovery rates based on laboratory testing and assaying. The Company periodically reviews its estimates compared to actual experience and revises its estimates when appropriate. Variations between actual and estimated quantities resulting from changes in assumptions and estimates that do not result in write-downs to net realizable value are accounted for on a prospective basis.
Metal and Other Inventory	'
	Metal and Other Inventory
	Inventories include concentrate, doré, and operating materials and supplies. The classification of inventory is determined by the stage at which the ore is in the production process. All inventories are stated at the lower of cost or market, with cost being determined using a weighted average cost method. Concentrate and doré inventory includes product at the mine site and product held by refineries. Concentrate inventories associated with the Endeavor mine are held by third parties. Metal inventory costs include direct labor, materials, depreciation, depletion and amortization as well as overhead costs relating to mining activities.
Property, Plant, and Equipment	'
	Property, Plant, and Equipment
	Expenditures for new facilities, assets acquired pursuant to capital leases, new assets or expenditures that extend the useful lives of existing facilities are capitalized and depreciated using the straight-line method at rates sufficient to depreciate such costs over the shorter of estimated productive lives of such facilities, lease term, or the useful life of the individual assets. Productive lives range from 7 to 31 years for buildings and improvements and 3 to 13 years for machinery and equipment. Certain mining equipment is depreciated using the units-of-production method based upon estimated total proven and probable reserves.
Operational Mining Properties and Mine Development	'
	Mining Properties and Mine Development
	Capitalization of mine development costs begins once all operating permits have been secured, mineralization is classified as proven and probable reserves and a final feasibility study has been completed. Mine development costs include engineering and metallurgical studies, drilling and other related costs to delineate an ore body, the removal of overburden to initially expose an ore body at open pit surface mines and the building of access ways, shafts, lateral access, drifts, ramps and other infrastructure at underground mines. Costs incurred before mineralization is classified as proven and probable reserves are expensed and classified as Exploration or Pre-development expense. Mine development costs are amortized using the units of production method over the estimated life of the ore body based on recoverable ounces to be mined from proven and probable reserves. Interest expense allocable to the cost of developing mining properties and to construct new facilities is capitalized until assets are ready for their intended use.
	Drilling and related costs incurred at the Company’s operating mines are expensed as incurred as exploration expense, unless the Company can conclude with a high degree of confidence, prior to the commencement of a drilling program, that the drilling costs will result in the conversion of a mineral resource into proven and probable reserves. The Company’s assessment is based on the following factors: results from previous drill programs; results from geological models; results from a mine scoping study confirming economic viability of the resource; and preliminary estimates of mine inventory, ore grade, cash flow and mine life. In addition, the Company must have all permitting and/or contractual requirements necessary to have the right to and/or control of the future benefit from the targeted ore body. The costs of a drilling program that meet these criteria are capitalized as mine development costs. Drilling and related costs of approximately $11.6 million and $13.9 million at December 31, 2013 and 2012, respectively, were capitalized.
	The cost of removing overburden and waste materials to access the ore body at an open pit mine prior to the production phase are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development of an open pit mine. Stripping costs incurred during the production phase of a mine are variable production costs that are included as a component of inventory to be recognized in production costs applicable to sales in the same period as the revenue from the sale of inventory.
Mineral Interests	'
	Mineral Interests
	Significant payments related to the acquisition of land and mineral rights are capitalized. Prior to acquiring such land or mineral rights, the Company generally makes a preliminary evaluation to determine that the property has significant potential to develop an economic ore body. The time between initial acquisition and full evaluation of a property’s potential is variable and is determined by many factors including: location relative to existing infrastructure, the property’s stage of development, geological controls and metal prices. If a mineable ore body is discovered, such costs are amortized when production begins using the units-of-production method based on recoverable ounces to be mined from proven and probable reserves. If no mineable ore body is discovered, such costs are expensed in the period in which it is determined the property has no future economic value.
Asset Impairment	'
	Asset Impairment
	Management reviews and evaluates its long-lived assets for impairment when events and changes in circumstances indicate that the related carrying amounts of its assets may not be recoverable. Impairment is considered to exist if the total probability-weighted estimate or other appropriate estimate of future cash flows on an undiscounted basis are less than the carrying amount of the asset group, including property plant and equipment, mineral property, development property, and any deferred costs. An impairment loss is measured and recorded based on the difference between book value and estimated fair value of the asset group. Future cash flows include estimates of recoverable ounces, gold and silver prices (considering current and historical prices, price trends and related factors), production levels and required capital investment, all based on life-of-mine plans and projections. Assumptions underlying future cash flow estimates are subject to risks and uncertainties. Any differences between these assumptions and actual market conditions or the Company’s actual operating performance could have a material effect on the Company’s determination of its ability to recover the carrying amounts of its long-lived assets resulting in impairment charges. In estimating future cash flows, assets are grouped at the lowest level for which there are identifiable cash flows that are largely independent of cash flows from other asset groups. Generally, in estimating future cash flows, all assets are grouped at a particular mine for which there is identifiable cash flow.
Restricted Assets	'
	Restricted Assets
	The Company, under the terms of its self-insurance and bonding agreements with certain banks, lending institutions and regulatory agencies, is required to collateralize certain portions of its obligations. The Company has collateralized these obligations by assigning certificates of deposit that have maturity dates ranging from three months to a year, to the respective institutions or agencies. At December 31, 2013 and 2012, the Company held certificates of deposit and cash under these agreements of $7.0 million and $25.0 million, respectively, restricted for these purposes. The ultimate timing of the release of the collateralized amounts is dependent on the timing and closure of each mine and repayment of the facility. In order to release the collateral, the Company must seek approval from certain government agencies responsible for monitoring the mine closure status. Collateral could also be released to the extent the Company is able to secure alternative financial assurance satisfactory to the regulatory agencies. The Company believes there is a reasonable probability that the collateral will remain in place beyond a twelve-month period and has therefore classified these investments as long-term.
Reclamation and Remediation Costs	'
	Reclamation and Remediation Costs
	The Company recognizes obligations for the expected future retirement of tangible long-lived assets and other associated asset retirement costs. The fair value of a liability for an asset retirement obligation will be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The fair value of the liability is added to the carrying amount of the associated asset and this additional carrying amount is depreciated over the life of the asset. An accretion cost, representing the increase over time in the present value of the liability, is recorded each period in Amortization expense. As reclamation work is performed or liabilities are otherwise settled, the recorded amount of the liability is reduced.
	Future remediation costs for inactive mines are accrued based on management’s best estimate at the end of each period of the undiscounted costs expected to be incurred at the site. Such cost estimates include, where applicable, ongoing care and maintenance and monitoring costs. Changes in estimates are reflected prospectively in the period an estimate is revised.
Foreign Currency	'
	Foreign Currency
	The assets and liabilities of the Company’s foreign subsidiaries are measured using U.S. dollars as their functional currency. Revenues and expenses are translated at the average exchange rate for the period. Foreign currency transaction gains and losses are included in the determination of net income or loss.
Derivative Financial Instruments	'
	Derivative Financial Instruments
	The Company recognizes all derivatives as either assets or liabilities on the balance sheet and measures those instruments at fair value. Changes in the value of derivative instruments are recorded each period in the Consolidated Statement of Comprehensive Income (Loss) in Fair value adjustments, net. Management applies judgment in estimating the fair value of instruments that are highly sensitive to assumptions regarding commodity prices, market volatilities, and foreign currency exchange rates.
Stock-based Compensation Plans	'
	Stock-based Compensation Plans
	The Company estimates the fair value of stock options and stock appreciation rights (“SARs”) awards using the Black-Scholes option pricing model. Stock options granted are accounted for as equity-based awards and SARs are accounted for as liability-based awards. The value of the SARs is remeasured at each reporting date. The Company estimates the fair value of performance share and performance unit grants using a Monte Carlo simulation valuation model. Performance shares granted are accounted for as equity based awards and performance shares units are accounted for as liability-based awards. The Company estimates forfeitures of stock-based awards based on historical data and periodically adjusts the forfeiture rate. The adjustment of the forfeiture rate is recorded as a cumulative adjustment in the period the forfeiture estimate is changed. Compensation costs related to stock based compensation are included in General and administrative expenses, Production costs applicable to sales and the cost of self-constructed property, plant and equipment as deemed appropriate.
	Restricted stock and restricted stock units granted under the Company’s incentive plans are accounted for based on the market value of the underlying shares on the date of grant and vest in equal installments annually over three years. Restricted stock awards are accounted for as equity-based awards and restricted stock unit awards are accounted for as liability-based awards. Restricted stock units are remeasured at each reporting date. Restricted stock units are settled in cash based on the number of vested restricted stock units multiplied by the current market price of the common shares when vested. Holders of the restricted stock are entitled to vote the shares and to receive any dividends declared on the shares.
Income Taxes	'
	Income Taxes
	The Company uses an asset and liability approach which results in the recognition of deferred tax liabilities and assets for the expected future tax consequences or benefits of temporary differences between the financial reporting basis and the tax basis of assets and liabilities, as well as operating loss and tax credit carryforwards, using enacted tax rates in effect in the years in which the differences are expected to reverse.
	In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of its deferred tax assets will not be realized. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income and tax planning strategies in making this assessment. A valuation allowance has been provided for the portion of the Company’s net deferred tax assets for which it is more likely than not that they will not be realized.
Use of Estimates	'
	Recent Accounting Standards
	On January 1, 2013, the Company adopted ASU 2011-11, "Balance Sheet (Topic 201): Disclosures about Offsetting Assets and Liabilities." This ASU adds certain additional disclosure requirements about financial instruments and derivative instruments that are subject to netting arrangements. The adoption of ASU 2011-11 had no effect on the Company's financial position, results of operations or cash flows.
	On January 1, 2013, the Company adopted ASU 2013-02, "Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." The new standard requires either in a single note or parenthetically on the face of the financial statements: (i) the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source and (ii) the income statement line items affected by the reclassification. The adoption of ASU 2013-02 had no effect on the Company's financial position, results of operations or cash flows.
	In July 2013, the FASB issued 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 update is effective prospectively for the Company's fiscal year beginning January 1, 2014.

Segment_Reporting_Tables

Segment Reporting (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Financial information relating to the reporting segments	'
	Financial information relating to the Company’s segments is as follows (in thousands):
	Year ended December 31, 2013	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			La Preciosa			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	324,040		$	141,721		$	148,769		$	119,254		$	(661	)	$	—		$	12,871		$	—		$	745,994
	Production costs applicable to sales	(188,572		)	(86,827		)	(104,575		)	(77,869		)	—			—			(5,818		)	(2		)	(463,663		)
	Amortization	(134,240		)	(19,565		)	(63,216		)	(10,571		)	(438		)	(24		)	(3,755		)	(1,070		)	(232,879		)
	Gross profit (loss)	1,228			35,329			(19,022		)	30,814			(1,099		)	(24		)	3,298			(1,072		)	49,452
	Exploration expense	7,161			111			4,199			2,653			4,485			80			2,069			1,602			22,360
	Write-downs	642,094			—			130,694			—			—			—			—			205			772,993
	Other operating expenses	—			5,743			269			34,584			2,650			3,237			1,397			51,378			99,258
	OPERATING INCOME (LOSS)	(648,027		)	29,475			(154,184		)	(6,423		)	(8,234		)	(3,341		)	(168		)	(54,257		)	(845,159		)
	Interest and other income, net	906			2,582			(187		)	(318		)	865			15			(19,474		)	10,626			(4,985		)
	Interest expense, net	(15,123		)	(74		)	(424		)	(20		)	(1		)	—			—			(25,661		)	(41,303		)
	Fair value adjustments, net	76,218			—			7,480			416			—			—			—			(1,346		)	82,768
	Income tax (provision) benefit	107,748			(10,938		)	(1		)	(2,332		)	(137		)	(20,856		)	2,179			82,453			158,116
	Net income (loss)	$	(478,278	)	$	21,045		$	(147,316	)	$	(8,677	)	$	(7,507	)	$	(24,182	)	$	(17,463	)	$	11,815		$	(650,563	)
	Segment assets(1)	$	1,164,852		$	289,272		$	343,144		$	176,789		$	6,168		$	410,335		$	62,678		$	105,581		$	2,558,819
	Capital expenditures	$	33,730		$	11,568		$	21,404		$	29,406		$	10		$	1,122		$	—		$	3,573		$	100,813
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
	Year ended December 31, 2012	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	442,098		$	178,005		$	110,987		$	132,392		$	13,162		$	18,848		$	—		$	895,492
	Production costs applicable to sales	(197,478		)	(71,428		)	(87,089		)	(72,061		)	(17,682		)	(8,824		)	—			(454,562		)
	Amortization	(146,595		)	(16,709		)	(41,645		)	(8,065		)	(692		)	(4,632		)	(519		)	(218,857		)
	Gross profit (loss)	98,025			89,868			(17,747		)	52,266			(5,212		)	5,392			(519		)	222,073
	Exploration expense	7,575			159			3,283			3,591			8,648			1,056			1,958			26,270
	Write-downs	—			—			—			—			5,825			—			—			5,825
	Other operating expenses	11			80			74			1,401			2,108			(736		)	31,300			34,238
	OPERATING INCOME (LOSS)	90,439			89,629			(21,104		)	47,274			(21,793		)	5,072			(33,777		)	155,740
	Interest and other income, net	4,017			9,719			(77		)	358			(1,153		)	(77		)	1,649			14,436
	Interest expense, net	(18,938		)	(72		)	(2,972		)	(26		)	(3		)	—			(4,158		)	(26,169		)
	Loss on debt extinguishment	—			—			(1,036		)	—			—			—			—			(1,036		)
	Fair value adjustments, net	(31,054		)	—			4,089			—			—			—			3,478			(23,487		)
	Income tax (provision) benefit	(18,066		)	(44,632		)	—			(2,195		)	976			(327		)	(6,563		)	(70,807		)
	Net income (loss)	$	26,398		$	54,644		$	(21,100	)	$	45,411		$	(21,973	)	$	4,668		$	(39,371	)	$	48,677
	Segment assets(1)	$	1,905,269		$	302,922		$	508,658		$	104,373		$	9,813		$	32,656		$	110,365		$	2,974,056
	Capital expenditures	$	38,456		$	25,672		$	36,994		$	11,794		$	1,193		$	—		$	1,532		$	115,641
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
	Year ended December 31, 2011	Palmarejo			San Bartolomé			Kensington			Rochester			Martha			Coeur Capital			Other			Total
		Mine			Mine			Mine			Mine			Mine
	Sales of metals	$	513,097		$	267,502		$	151,186		$	57,331		$	13,347		$	18,737		$	—		$	1,021,200
	Production costs applicable to sales	(186,201		)	(79,679		)	(101,672		)	(27,848		)	(15,513		)	(8,634		)	—			(419,547		)
	Amortization	(159,264		)	(22,410		)	(35,839		)	(2,824		)	(556		)	(3,155		)	(452		)	(224,500		)
	Gross profit (loss)	167,632			165,413			13,675			26,659			(2,722		)	6,948			(452		)	377,153
	Exploration expense	6,863			248			1,102			1,989			6,367			662			1,897			19,128
	Other operating expenses	949			342			317			19,931			156			(1		)	29,126			50,820
	OPERATING INCOME (LOSS)	159,820			164,823			12,256			4,739			(9,245		)	6,287			(31,475		)	307,205
	Interest and other income, net	(9,099		)	156			4			57			(544		)	1,108			1,708			(6,610		)
	Interest expense, net	(23,453		)	(45		)	(4,889		)	(21		)	(458		)	—			(5,908		)	(34,774		)
	Loss on debt extinguishment	—			—			—			—			—			—			(5,526		)	(5,526		)
	Fair value adjustments, net	(40,046		)	—			(8,438		)	—			—			—			(3,566		)	(52,050		)
	Income tax (provision) benefit	(28,023		)	(59,867		)	(31		)	(409		)	(1,219		)	—			(25,197		)	(114,746		)
	Net income (loss)	$	59,199		$	105,067		$	(1,098	)	$	4,366		$	(11,466	)	$	7,395		$	(69,964	)	$	93,499
	Segment assets(1)	$	2,029,769		$	276,423		$	507,891		$	76,852		$	19,717		$	36,349		$	16,129		$	2,963,130
	Capital expenditures	$	36,976		$	17,731		$	34,013		$	27,217		$	3,426		$	59		$	566		$	119,988
	(1)     Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties
		As of December 31,
	(in thousands)	2013			2012			2011
	Assets
	Total assets for reportable segments	$	2,558,819		$	2,974,056		$	2,963,130
	Cash and cash equivalents	206,690			125,440			175,012
	Short term investments	—			999			20,254
	Other assets	120,469			120,906			106,045
Total consolidated assets	$	2,885,978		$	3,221,401		$	3,264,441
Consolidated Assets	'
		As of December 31,
	(in thousands)	2013			2012			2011
	Assets
	Total assets for reportable segments	$	2,558,819		$	2,974,056		$	2,963,130
	Cash and cash equivalents	206,690			125,440			175,012
	Short term investments	—			999			20,254
	Other assets	120,469			120,906			106,045
	Total consolidated assets	$	2,885,978		$	3,221,401		$	3,264,441
Long Lived Assets by Country	'
	Geographic Information
		As of December 31,
	(in thousands)	2013			2012			2011
	Long Lived Assets
	United States	$	384,626		$	608,051		$	515,096
	Australia	25,668			29,408			33,999
	Argentina	94,705			1,705			5,213
	Bolivia	235,085			240,905			230,956
	Mexico	1,487,228			1,795,677			1,903,374
	Other Foreign Countries	10,462			65			65
	Total	$	2,237,774		$	2,675,811		$	2,688,703
Revenue by Country	'
		Twelve months ended December 31,
	(in thousands)	2013			2012			2011
	Revenues
	United States	$	268,023		$	243,379		$	208,517
	Mexico	324,040			442,098			513,097
	Bolivia	141,721			178,005			267,502
	Australia	12,871			18,848			18,737
	Argentina	(661		)	13,162			13,347
	Total	$	745,994		$	895,492		$	1,021,200
	The Company markets its doré to bullion trading houses, market makers and members of the London Bullion Market Association, industrial companies and other financial institutions. The Company has eight trading counterparties and the sales of metals to these companies amounted to approximately 72%, 91%, and 82% of total metal sales for the years ended December 31, 2013, 2012, and 2011, respectively. Generally, the loss of a single bullion trading counterparty would not adversely affect the Company due to the liquidity of the markets and the availability of alternative trading counterparties.
	The Company currently has five trading counterparties for its silver and gold concentrates and the sales to these companies amounted to approximately 28%, 9%, and 18% of total metal sales for the years ended December 31, 2013, 2012, and 2011, respectively. The loss of any one smelting and refining client may have a material adverse effect if alternate smelters and refiners are not available. The Company believes there is sufficient global capacity available to address the loss of any one smelter.
	The following table indicates customers that represent 10% or more of total sales of metal for at least one of the years December 31, 2013, 2012, and 2011 (in millions):
			Year Ended December 31,
	Customer		2013			2012			2011			Segments reporting revenue
	Auramet		$	111.7		$	94.6		$	50.8		Palmarejo, San Bartolomé, Kensington, Rochester
	Toronto-Dominion Bank		106.7			65.8			—			Palmarejo, Rochester
	INTL Commodities		84.6			58			112.6			Palmarejo, San Bartolomé, Rochester
	China Gold		81.5			43.8			108.9			Kensington
	Valcambi		77.2			414.4			385.5			Palmarejo, San Bartolomé
	Mitsui		70.3			65.6			105.1			Palmarejo, Rochester

WriteDowns_Tables

Write-Downs (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Write-Downs	'
		Year ended December 31,
		2013		2012		2011
	Property, plant, and equipment
	Palmarejo	$	102,735	$	—	$	—
	Kensington	48,357		—		—
		151,092		—		—
	Mining properties
	Palmarejo	539,359		—		—
	Kensington	82,337		—		—
	Martha	205		5,825		—
		621,901		5,825		—
	Total	$	772,993	$	5,825	$	—

Reclamation_and_Mine_Closure_T

Reclamation and Mine Closure (Tables)	12 Months Ended
	Dec. 31, 2013
Asset Retirement Obligation Disclosure [Abstract]	'
Asset Retirement Obligation	'
	Changes to the Company’s asset retirement obligations are as follows (in thousands):
		Years ended December 31,
		2013			2012
	Asset retirement obligation - Beginning	$	34,457		$	32,714
	Accretion	3,442			2,911
	Additions and changes in estimates	20,236			(1,073		)
	Settlements	(681		)	(95		)
	Asset retirement obligation - Ending	$	57,454		$	34,457

StockBased_Compensation_Plans_

Stock-Based Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Assumptions to estimate fair value of stock options and SAR's	'
	The following table sets forth the weighted average fair value of stock options and the assumptions used to estimate the fair value of the stock options using the Black-Scholes option valuation model:
		2013				2012				2011
	Weighted average fair value of stock options granted	$	12.6			$	15.77			$	17.85
	Volatility	76.74		%		70.56		%		72.56		%
	Expected life in years	5				5.5				6
	Risk-free interest rate	0.84		%		0.89		%		2.3		%
	Dividend yield	—				—				—
Summary of stock option and SAR's activity	'
	The following table summarizes stock option and SARs activity for the years ended December 31, 2013, 2012 and 2011:
		Stock Options							SARs
		Shares			Weighted				Shares			Weighted
					Average							Average
					Exercise							Exercise
					Price							Price
	Outstanding at December 31, 2010	330,840			$	24.6			230,563			$	13.46
	Granted	139,916			27.39				—			—
	Exercised	(129,785	)		11.41				(119,801	)		13.1
	Canceled/forfeited	(19,364	)		40.16				(3,123	)		14.46
	Outstanding at December 31, 2011	321,607			24.6				107,639			13.46
	Granted	151,102			26.97				—			—
	Exercised	(40,173	)		11.84				(34,385	)		12.73
	Canceled/forfeited	(62,536	)		29.22				(4,389	)		15.4
	Outstanding at December 31, 2012	370,000			30.2				68,865			13.83
	Granted	190,452			20.41				—			—
	Exercised	(13,027	)		10.77				(6,617	)		13.14
	Canceled/forfeited	(131,855	)		29.3				(12,039	)		15.4
	Outstanding at December 31, 2013	415,570			$	27.36			50,209			$	14.15
Exercise Price Range	'
			Options Outstanding									Options Exercisable
	Range of		Number			Weighted Average				Weighted		Number		Weighted		Weighted
	Exercise Price		Outstanding			Exercise				Average		Exercisable		Average		Average
						Price				Remaining				Exercise		Remaining
										Contractual				Price		Contractual Life (Years)
										Life (Years)
	$ 0.00-$10.00		13,262			$	10			5.09		13,262		$	10	5.09
	$10.00-$20.00		99,245			$	17.25			9.21		3,936		$	19.01	8.35
	$20.00-$30.00		227,896			$	26.07			6.61		99,310		$	27.29	4.05
	$30.00-$40.00		38,369			$	39			1.25		37,515		$	39.09	1.12
	$40.00-$50.00		14,386			$	48.5			1.34		14,386		$	48.5	1.34
	$50.00-$60.00		9,544			$	51.4			0.91		9,544		$	51.4	0.91
	$60.00-$70.00		3,219			$	66.6			0.02		3,219		$	66.6	0.02
	$70.00-$80.00		9,649			$	70.9			0.14		9,649		$	70.9	0.14
			415,570			$	27.36					190,821		$	33.91
Summary of restricted stock and restricted stock units activity	'
	he following table summarizes restricted stock and restricted stock units activity for the years ended December 31, 2013, 2012 and 2011:
		Restricted Stock							Restricted Stock Units
		Number of			Weighted				Number of			Weighted Average
		Shares			Average				Units			Fair Value
					Grant Date
					Fair Value
	Outstanding at December 31, 2010	64,623			$	11.37			126,416			$	27.32
	Granted	205,463			27.37				—			—
	Vested	(85,323	)		19.36				(79,014	)		27.87
	Cancelled/Forfeited	(11,254	)		26.89				(1,884	)		25.03
	Outstanding at December 31, 2011	173,509			11.37				45,518			27.32
	Granted	230,096			26.4				—			—
	Vested	(95,336	)		23.15				(31,456	)		25.92
	Cancelled/Forfeited	(68,571	)		27.43				(2,651	)		24.6
	Outstanding at December 31, 2012	239,698			25.38				11,411			24.14
	Granted	573,467			15.38				—			—
	Vested	(90,963	)		26.83				(11,411	)		22.74
	Cancelled/Forfeited	(109,116	)		23.3				—			—
	Outstanding at December 31, 2013	613,086			$	16.68			—			$	—
Summary of performance shares and performance unit activity	'
	The following table summarizes performance shares and performance units’ activity for the years-ended December 31, 2013, 2012, and 2011:
		Performance Shares							Performance Units
		Number of			Weighted				Number of			Weighted Average
		Shares			Average				Units			Fair Value
					Grant Date
					Fair Value
	Outstanding at December 31, 2010	100,828			$	16.29			145,023			$	35.41
	Granted	81,489			42.72				—			—
	Vested	(56,830	)		23.24				(57,948	)		24.68
	Cancelled/Forfeited	(19,558	)		48.62				(2,536	)		25.03
	Outstanding at December 31, 2011	105,929			16.29				84,539			35.41
	Granted	145,508			25.78				32,498			—
	Vested	(111,703	)		7.96				(74,845	)		31.17
	Cancelled/Forfeited	(30,575	)		42.11				(7,953	)		49.2
	Outstanding at December 31, 2012	109,159			26.92				34,239			39.78
	Granted	173,773			23.35				34,239			38.02
	Vested	(4,160	)		30.97				(68,478	)		38.02
	Cancelled/Forfeited	(68,377	)		34.49				—			—
	Outstanding at December 31, 2013	210,395			$	28.04			—			$	—

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
	The components of income (loss) before income taxes were as follows (in thousands):
		Years Ended December 31,
		2013				2012			2011
	United States	$	(242,562	)		$	(3,443	)	$	(38,372	)
	Foreign	(566,117		)		122,927			246,617
	Total	$	(808,679	)		$	119,484		$	208,245
	For the years ended December 31, 2013, 2012, and 2011 the Company reported an income tax (provision) benefit of $158.1 million, $(70.8) million, and $(114.7) million, respectively.
	The following table summarizes the components of the Company’s income tax provision from continuing operations for the three years ended December 31, 2013, 2012, and 2011 (in thousands):
	The components of the consolidated income tax benefit (expense) from continuing operations were as follows:
		Years Ended December 31,
		2013				2012			2011
	Current:
	United States	$	4			$	(257	)	$	2,015
	United States — State mining taxes	(714		)		(2,195		)	(409		)
	United States — Foreign withholding tax	397				(736		)	(842		)
	Argentina	(137		)		976			(1,219		)
	Australia	(914		)		(1,760		)	(1,755		)
	Mexico	(9,046		)		(7,814		)	(1,084		)
	Bolivia	(6,716		)		(43,546		)	(59,660		)
	Canada	(1,936		)		—			—
	Deferred:
	Argentina	8,062				—			—
	Australia	(2		)		(223		)	(661		)
	Bolivia	(4,222		)		(1,087		)	(207		)
	Mexico	94,851				(10,579		)	(28,022		)
	United States	78,489				(3,586		)	(22,902		)
	Income tax benefit (expense)	$	158,116			$	(70,807	)	$	(114,746	)
Reconciliation of effective tax rate with the federal statutory tax rate	'
	A reconciliation of the Company’s effective tax rate with the federal statutory tax rate for the periods indicated is as follows:
		Years Ended December 31
		2013				2012			2011
	Tax benefit (expense) from continuing operations	$	283,038			$	(41,819	)	$	(72,886	)
	State tax provision from continuing operations	2,245				(3,151		)	(11,009		)
	Percentage depletion and related deductions	—				7,461			—
	Change in valuation allowance	(106,802		)		(12,651		)	(6,032		)
	Non-deductible imputed interest	(214		)		(525		)	(808		)
	Uncertain tax positions	(5,209		)		(9,849		)	(1,279		)
	U.S. and foreign non-deductible expenses	(2,383		)		(4,206		)	(10,648		)
	Foreign exchange rates	13,937				(10,416		)	(4,440		)
	Foreign inflation and indexing	2,937				712			(3,829		)
	Foreign tax rate differences	(24,108		)		3,967			22,795
	Foreign withholding and other foreign taxes	(100,331		)		(5,861		)	(23,246		)
	Foreign tax credits and other, net	13,153				5,531			(3,364		)
	Change in Mexico permanent reinvestment assertion	81,853				—			—
		$	158,116			$	(70,807	)	$	(114,746	)
Deferred tax assets and liabilities	'
	As of December 31, 2013 and 2012, the significant components of the Company’s deferred tax assets and liabilities were as follows:
		Years Ended December 31
		2013				2012
	Deferred tax liabilities:
	Mineral properties	$	344,152			$	461,742
	Mexican mining royalty tax	76,386				—
	Foreign subsidiaries — unremitted earnings	182,464				247,000
	Inventory	2,746				—
	Property, plant and equipment, net	33,094				60,266
		$	638,842			$	769,008
	Deferred tax assets:
	Net operating loss carryforwards	130,170				99,323
	Foreign subsidiaries — future tax credits	163,947				145,395
	Royalty and other long-term debt	11,616				42,221
	Capital loss carryforwards	34,930				35,315
	Asset retirement obligation	18,589				8,623
	Unrealized foreign currency loss and other	9,567				1,590
	Accrued expenses	14,756				20,692
	Tax credit carryforwards	23,585				22,811
	Inventory	—				1,418
		407,160				377,388
	Valuation allowance	(289,378		)		(182,576		)
		117,782				194,812
	Net deferred tax liabilities	$	(521,060	)		$	(574,196	)
Recorded valuation allowances	'
	The Company has evaluated the amount of taxable income and periods over which it must be earned to allow for realization of the deferred tax assets. Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this decision. Based upon this analysis, the Company has recorded valuation allowances as follows:
		Years Ended December 31
		2013				2012
	U.S.	$	236,653			$	132,790
	Argentina	17,005				18,442
	Canada	4,453				2,227
	New Zealand	27,292				27,125
	Other	3,975				1,992
		$	289,378			$	182,576
Reconciliation of the beginning and ending amount related to unrecognized tax benefits	'
	A reconciliation of the beginning and ending amount related to unrecognized tax benefits is as follows (in thousands):
	Unrecognized tax benefits at January 1, 2012	$	1,980
	Gross increase to current period tax positions	9,227
	Gross decrease to prior period tax positions	(696		)
	Unrecognized tax benefits at December 31, 2012	$	10,511
	Gross increase to current period tax positions	2,231
	Gross increase to prior period tax positions	2,761
	Reductions in unrecognized tax benefits resulting from a lapse of the applicable statue of limitations	(32		)
	Unrecognized tax benefits at December 31, 2013	$	15,471
Tax attribute carryforwards	'
	The Company has the following tax attribute carryforwards as of December 31, 2013, by jurisdiction:
		U.S.			Argentina			Canada		Mexico		New Zealand	Other	Total
	Regular net operating losses	226,985			21,061			7,203		4,170		97,470	6,641	363,530
	Alternative minimum tax net operating losses	99,954			—			—		—		—	—	99,954
	Capital losses	90,258			—			3,579		—		—	—	93,837
	Alternative minimum tax credits	3,136			—			—		—		—	—	3,136
	Foreign tax credits	19,494			—			—		—		—	—	19,494

Net_Income_Loss_Per_Share_Tabl

Net Income (Loss) Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	'
		Year ended December 31,
	In thousands except per share amounts	2013			2012		2011
	Net income (loss) available to common stockholders	$	(650,563	)	$	48,677	$	93,499
	Weighted average shares
	Basic	97,864			89,437		89,383
	Effect of share based compensation plans	—			166		342
	Diluted	97,864			89,603		89,725
	Income (loss) per share:
	Basic	$	(6.65	)	$	0.54	$	1.05
	Diluted	$	(6.65	)	$	0.54	$	1.04

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2013
Orko Silver Corporation [Member]	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	Total consideration paid for the asset acquisition (in thousands):
	Common shares issued (11,572,918 at $14.98)	$	173,363
	Cash	99,059
	Warrants (1,588,768 valued at $3.64 per warrant)	5,777
	Transaction advisory fees and other acquisition costs	17,642
	Total purchase price	295,841
	Current liabilities	2,616
	Deferred income taxes	114,339
	Total liabilities assumed	116,955
	Total consideration	$	412,796
Schedule of Assets Acquired Through Business Combination at Fair Value	'
	Estimated fair value of the assets acquired (in thousands):
	Cash	$	3,487
	Other current assets	635
	Mineral interests	408,352
	Other assets	322
	Total assets acquired	$	412,796
Global Royalty Corp [Member]	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	Total consideration paid for the acquisition (in thousands):
	Common shares issued (2,130,351 at $10.42)	$	22,198
	Cash	3,849
	Total purchase price	26,047
	Current liabilities	679
	Deferred income taxes	7,926
	Total liabilities assumed	8,605
	Total consideration	$	34,652
Schedule of Assets Acquired Through Business Combination at Fair Value	'
	Estimated fair value of the assets acquired (in thousands):
	Cash	$	165
	Receivables	276
	Metal and other inventory	111
	Mineral interests	34,100
	Total assets acquired	$	34,652

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
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 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 NSR royalty obligation	21,630			—		—			21,630
	Other derivative instruments, net	1,590			—		1,590			—
		$	63,558		$	—	$	1,590		$	61,968
		Fair Value at December 31, 2012
		Total			Level 1		Level 2			Level 3
	Assets:
	Short-term investments	$	999		$	999	$	—		$	—
	Marketable equity securities	27,065			27,065		—			—
	Put and call options	943			—		943			—
		$	29,007		$	28,064	$	943		$	—
	Liabilities:
	Palmarejo royalty obligation embedded derivative	$	145,098		$	—	$	145,098		$	—
	Put and call options	9,299			—		9,299			—
		$	154,397		$	—	$	154,397		$	—
Changes in the fair value of the Comany's Level 3 financial liabilities	'
		Balance at the beginning of the period			Additions		Revaluation			Transfers from Level 2		Balance at the end of the period		Unrealized gains (losses) recognized in income statement
	Palmarejo royalty obligation embedded derivative	$	—		$	—	$	(104,760	)	$	145,098	$	40,338	$	104,760
	Rochester NSR royalty obligation	—			22,046		(416		)	—		21,630		416
Quantitative and qualitative information related to unobservable inputs	'
	The following table sets forth the quantitative and qualitative information related to the unobservable inputs used in the calculation of the Company's non-recurring Level 3 fair value measurements:
	Description	Valuation technique	Unobservable input	Range / Weighted Average
	Property, plant, and equipment	Discounted cash flow	Discount rate	8.5% - 10.5%
			Long-term silver price	$25.00
			Long-term gold price	$1,450
	Mining properties	Discounted cash flow	Discount rate	8.5% - 10.5%
			Long-term silver price	$25.00
			Long-term gold price	$1,450
Financial Assets and Liabilities not Measured at Fair Value	'
	inancial assets and liabilities that are measured at book value in the financial statements at December 31, 2013 and December 31, 2012 are presented in the following table (in thousands):
		Fair Value at December 31, 2013
		Total			Level 1		Level 2			Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	5,067		$	5,067	$	—		$	—
	7.875% Senior Notes due 2021	307,314			307,314		—			—
	Palmarejo Gold Production Royalty Obligation	65,212			—		—			65,212
		Fair Value at December 31, 2012
		Total			Level 1		Level 2			Level 3
	Liabilities:
	3.25% Convertible Senior Notes due 2028	$	48,220		$	48,220	$	—		$	—
	Palmarejo Gold Production Royalty Obligation	90,617			—		90,617			—

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative instruments Settlement	'
	At December 31, 2013, 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	$	29,831			$	24,764			$	15,141			$	—
	Average gold price in excess of minimum contractual deduction	498				494				490				—
	Notional ounces	59,856				50,153				30,922				—
	Mexican peso forward purchase contracts	$	12,000			$	—			$	—			$	—
	Average rate (MXN/$)	12.21				—				—				—
	Mexican peso notional amount	146,460				—				—				—
	Mexican peso put options purchased	$	45,000			$	—			$	—			$	—
	Average rate (MXN/$)	12.6				—				—				—
	Mexican peso notional amount	567,150				—				—				—
	Mexican peso call options sold	$	45,000			$	—			$	—			$	—
	Average rate (MXN/$)	14.8				—				—				—
	Mexican peso notional amount	666,075				—				—				—
	Silver concentrate sales agreements	$	3,645			$	—			$	—			$	—
	Average silver price	$	20.98			$	—			$	—			$	—
	Notional ounces	173,752				—				—				—
	Gold concentrate sales agreements	$	38,760			$	—			$	—			$	—
	Average gold price	$	1,259			$	—			$	—			$	—
	Notional ounces	30,780				—				—				—
	Gold put options purchased	$	274			$	—			$	—			$	—
	Average gold strike price	$	1,150			$	—			$	—			$	—
	Notional ounces	25,000				—				—				—
	Silver put options purchased	$	238			$	—			$	—			$	—
	Average silver strike price	$	17			$	—			$	—			$	—
	Notional ounces	1,250,000				—				—				—
Fair value of the derivative instruments	'
	The following summarizes the classification of the fair value of the derivative instruments (in thousands):
		December 31, 2013
		Prepaid				Accrued				Other long-				Current		Non-current
		expenses and				liabilities and				term				portion of		portion of
		other				other				liabilities				royalty		royalty
														obligation		obligation
	Foreign exchange contracts, peso	$	38			$	947			$	—			$	—	$	—
	Palmarejo gold production royalty	—				—				—				17,650		22,688
	Gold and silver put options	135				—				—				—		—
	Concentrate sales contracts	11				693				—				—		—
		$	184			$	1,640			$	—			$	17,650	$	22,688
		December 31, 2012
		Prepaid				Accrued				Other long-				Current		Non-current
		expenses and				liabilities and				term				portion of		portion of
		other				other				Liabilities				royalty		royalty
														obligation		obligation
	Foreign exchange contracts, peso	$	376			$	300			$	—			$	—	$	—
	Palmarejo gold production royalty	—				—				—				41,146		103,952
	Gold and silver put options, net	—				2,025				7,274				—		—
	Concentrate sales contracts	1,030				163				—				—		—
		$	1,406			$	2,488			$	7,274			$	41,146	$	103,952
Gain losses on derivative instruments	'
	The following represent mark-to-market gains (losses) on derivative instruments for the years ended December 31, 2013, 2012, and 2011 (in thousands):
				Year ended December 31,
	Financial statement line	Derivative		2013				2012				2011
	Sales of metal	Concentrate sales contracts		$	(1,995	)		$	1,682			$	2,505
	Production costs applicable to sales	Forward foreign exchange contracts		589				(1,621		)		383
	Fair value adjustments, net	Gold lease facility		—				—				(132		)
	Fair value adjustments, net	Forward foreign exchange contracts		(985		)		3,264				(3,192		)
	Fair value adjustments, net	Forward gold contract		—				—				34
	Fair value adjustments, net	Silver ounces receivable		—				213				(276		)
	Fair value adjustments, net	Palmarejo gold royalty		76,200				(31,053		)		(40,046		)
	Fair value adjustments, net	Put and call options		7,119				4,089				(8,438		)
				$	80,928			$	(23,426	)		$	(49,162	)

Investments_Tables

Investments (Tables)	12 Months Ended
	Dec. 31, 2013
Investment in Marketable Securities [Abstract]	'
Investments	'
		At December 31, 2013
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable securities	$	17,649			$	(3,300	)		$	172			$	14,521
		At December 31, 2012
		Cost				Gross				Gross				Estimated
						Unrealized				Unrealized				Fair Value
						Losses				Gains
	Marketable securities	$	34,786			$	(10,443	)		$	2,722			$	27,065
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 December 31, 2013 (in thousands):
		Less than twelve months							Twelve months or more							Total
		Unrealized Losses			Fair Value				Unrealized Losses			Fair Value				Unrealized Losses			Fair Value
	Marketable equity securities	$	(3,300	)	$	4,146			$	—		$	—			$	(3,300	)	$	4,146

Receivables_Tables

Receivables (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Receivables	'
	Receivables consist of the following (in thousands):
		December 31, 2013		31-Dec-12
	Receivables - current
	Accounts receivable - trade	$	17,303	$	8,701
	Refundable income tax	6,240		9,331
	Refundable value added tax	49,168		40,020
	Accounts receivable - other	8,363		4,386
		$	81,074	$	62,438
	Receivables - non-current
	Refundable value added tax	$	36,574	$	48,767

Metal_and_Other_Inventory_Tabl

Metal and Other Inventory (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventories	'
	Metal and other inventory consist of the following (in thousands):
		December 31, 2013		31-Dec-12
	Concentrate and doré inventory	$	67,105	$	91,130
	Supplies	64,918		79,540
		$	132,023	$	170,670

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment consist of the following (in thousands):
		December 31, 2013			31-Dec-12
	Land	$	1,764		$	2,010
	Buildings and improvements	489,535			581,286
	Machinery and equipment	365,783			360,199
	Capitalized leases for machinery, equipment, buildings, and land	16,133			35,129
		873,215			978,624
	Accumulated amortization	(395,520		)	(313,067		)
		477,695			665,557
	Construction in progress	8,578			18,303
		$	486,273		$	683,860

Mining_Properties_Tables

Mining Properties (Tables)	12 Months Ended
	Dec. 31, 2013
Mining Properties [Abstract]	'
Mining Properties	'
	Mining properties consist of the following (in thousands):
	December 31, 2013	Palmarejo			San			Kensington			Rochester			La Preciosa			Joaquin		Coeur Capital			Total
					Bartolomé
	Mining properties	$	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
	Total mining properties	$	888,087		$	66,409		$	188,319		$	47,218		$	408,352		$	93,429	$	59,687		$	1,751,501
	December 31, 2012	Palmarejo			San			Kensington			Rochester			Endeavor			Joaquin		Total
					Bartolomé
	Mining properties	$	155,722		$	70,322		$	333,619		$	114,973		$	—		$	—	$	674,636
	Accumulated amortization	(82,037		)	(18,439		)	(46,649		)	(100,437		)	—			—		(247,562		)
		73,685			51,883			286,970			14,536			—			—		427,074
	Mineral interests	1,658,389			26,642			—			—			44,033			93,571		1,822,635
	Accumulated amortization	(235,795		)	(7,338		)	—			—			(14,625		)	—		(257,758		)
		1,422,594			19,304			—			—			29,408			93,571		1,564,877
	Total mining properties	$	1,496,279		$	71,187		$	286,970		$	14,536		$	29,408		$	93,571	$	1,991,951

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long term debt and capital lease obligations	'
	The current and non-current portions of long-term debt and capital lease obligations at December 31, 2013 and December 31, 2012 are as follows (in thousands):
		December 31,						December 31,
		2013						2012
		Current			Non-Current			Current			Non-Current
	3.25% Convertible Senior Notes due 2028	$	—		$	5,334		$	48,081		$	—
	7.875% Senior Notes due 2021	—			300,000			—			—
	Capital lease obligations	2,505			796			7,902			3,460
		$	2,505		$	306,130		$	55,983		$	3,460
Interest expenses incurred for various debt instruments	'
		Years Ended December 31,
		2013			2012			2011
		(in thousands)
	3.25% Convertible Senior Notes due 2028	$	466		$	1,581		$	1,581
	7.875 % Senior Notes due 2021	21,853			—			—
	Revolving Credit Facility	612			213			—
	1.25% Convertible Senior Notes due 2024 (terminated in 2011)	—			—			1
	Senior Term Notes (terminated in 2011)	—			—			1,381
	Kensington Term Facility (terminated in 2012)	—			2,339			4,383
	Capital lease obligations	415			997			1,620
	Other debt obligations	291			881			1,379
	Accretion of Franco Nevada royalty obligation	17,641			19,139			22,230
	Amortization of debt issuance costs	2,143			1,146			2,050
	Accretion of debt discount	576			2,536			2,324
	Capitalized interest	(2,694		)	(2,663		)	(2,175		)
	Total interest expense, net of capitalized interest	$	41,303		$	26,169		$	34,774

Supplemental_Guarantor_Informa1

Supplemental Guarantor Information (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Schedule of Comprehensive Income (Loss)	'
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	YEAR ENDED DECEMBER 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Sales of metal	$	—		$	268,023		$	477,971		$	—		$	745,994
	Production costs applicable to sales	—			(182,444		)	(281,219		)	—			(463,663		)
	Depreciation, depletion and amortization	(1,066		)	(73,802		)	(158,011		)	—			(232,879		)
	Gross profit	(1,066		)	11,777			38,741			—			49,452
	COSTS AND EXPENSES
	General and administrative	50,213			3,245			1,885			—			55,343
	Exploration	1,602			8,920			11,838			—			22,360
	Litigation settlement	—			32,046			—			—			32,046
	Write-downs	—			130,694			642,299			—			772,993
	Pre-development, care, maintenance and other	—			946			10,923			—			11,869
	Total costs and expenses	51,815			175,851			666,945			—			894,611
	OPERATING LOSS	(52,881		)	(164,074		)	(628,204		)	—			(845,159		)
	OTHER INCOME AND EXPENSE
	Fair value adjustments, net	(1,346		)	7,896			76,218			—			82,768
	Other than temporary impairment of marketable securities	(18,097		)	(211		)	—			—			(18,308		)
	Interest income and other, net	13,408			(1,539		)	4,602			(3,148		)	13,323
	Interest expense, net of capitalized interest	(25,652		)	(445		)	(18,354		)	3,148			(41,303		)
	Total other income and expense, net	(31,687		)	5,701			62,466			—			36,480
	Loss before income taxes	(84,568		)	(158,373		)	(565,738		)	—			(808,679		)
	Income tax benefit	78,332			(155		)	79,939			—			158,116
	Total loss after taxes	(6,236		)	(158,528		)	(485,799		)	—			(650,563		)
	Equity income (loss) in consolidated subsidiaries	(644,327		)	(68		)	—			644,395			—
	NET INCOME (LOSS)	$	(650,563	)	$	(158,596	)	$	(485,799	)	$	644,395		$	(650,563	)
	OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
	Unrealized gain (loss) on available for sale securities	(8,489		)	(552		)	—			552			(8,489		)
	Reclassification adjustments for losses included in net income	11,221			211			—			(211		)	11,221
	Reclassification adjustments for realized loss on sale of marketable securities	83			—			—			—			83
	Other comprehensive income (loss)	2,815			(341		)	—			341			2,815
	COMPREHENSIVE INCOME (LOSS)	$	(647,748	)	$	(158,937	)	$	(485,799	)	$	644,736		$	(647,748	)
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	YEAR ENDED DECEMBER 31, 2011
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	Sales of metal	$	—		$	208,517		$	812,683		$	—		$	1,021,200
	Production costs applicable to sales	—			(129,520		)	(290,027		)	—			(419,547		)
	Depreciation, depletion and amortization	(450		)	(38,670		)	(185,380		)	—			(224,500		)
	Gross profit	(450		)	40,327			337,276			—			377,153
	COSTS AND EXPENSES
	General and administrative	28,407			937			2,035			—			31,379
	Exploration	1,504			3,754			13,870			—			19,128
	Pre-development, care, maintenance and other	—			19,311			130			—			19,441
	Total costs and expenses	29,911			24,002			16,035			—			69,948
	OPERATING INCOME (LOSS)	(30,361		)	16,325			321,241			—			307,205
	OTHER INCOME AND EXPENSE
	Loss on debt extinguishments	(5,526		)	—			—			—			(5,526		)
	Fair value adjustments, net	(3,566		)	(8,438		)	(40,046		)	—			(52,050		)
	Interest income and other, net	8,871			1,170			(7,372		)	(9,279		)	(6,610		)
	Interest expense, net of capitalized interest	(6,328		)	(4,910		)	(32,815		)	9,279			(34,774		)
	Total other income and expense, net	(6,549		)	(12,178		)	(80,233		)	—			(98,960		)
	Income (loss) before income taxes	(36,910		)	4,147			241,008			—			208,245
	Income tax provision	(20,904		)	(440		)	(93,402		)	—			(114,746		)
	Total income (loss) after taxes	(57,814		)	3,707			147,606			—			93,499
	Equity income (loss) in consolidated subsidiaries	151,313			—			—			(151,313		)	—
	NET INCOME (LOSS)	$	93,499		$	3,707		$	147,606		$	(151,313	)	$	93,499
	OTHER COMPREHENSIVE INCOME (LOSS) net of tax:
	Unrealized loss on available for sale securities	(4,975		)	—			—			—			(4,975		)
	Reclassification adjustments for losses included in net income	—			—			—			—			—
	Other comprehensive loss	(4,975		)	—			—			—			(4,975		)
	COMPREHENSIVE INCOME (LOSS)	$	88,524		$	3,707		$	147,606		$	(151,313	)	$	88,524
	CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME (LOSS)
	YEAR ENDED DECEMBER 31, 2012
	Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
Sales of metal	$	—		$	243,380		$	652,112		$	—		$	895,492
Production costs applicable to sales	—			(159,151		)	(295,411		)	—			(454,562		)
Depreciation, depletion and amortization	(521		)	(49,750		)	(168,586		)	—			(218,857		)
Gross profit	(521		)	34,479			188,115			—			222,073
COSTS AND EXPENSES
General and administrative	30,699			1,101			1,177			—			32,977
Exploration	1,946			7,930			16,394			—			26,270
Write-downs	—			—			5,825			—			5,825
Pre-development, care, maintenance and other	—			(362		)	1,623			—			1,261
Total costs and expenses	32,645			8,669			25,019			—			66,333
OPERATING INCOME (LOSS)	(33,166		)	25,810			163,096			—			155,740
OTHER INCOME AND EXPENSE
Loss on debt extinguishments	—			(1,036		)	—			—			(1,036		)
Fair value adjustments, net	3,477			4,089			(31,053		)	—			(23,487		)
Other than temporary impairment of marketable securities	(605		)	—			—			—			(605		)
Interest income and other, net	5,744			859			13,071			(4,633		)	15,041
Interest expense, net of capitalized interest	(4,158		)	(2,997		)	(23,647		)	4,633			(26,169		)
Total other income and expense, net	4,458			915			(41,629		)	—			(36,256		)
Income (loss) before income taxes	(28,708		)	26,725			121,467			—			119,484
Income tax provision	(3,844		)	(2,930		)	(64,033		)	—			(70,807		)
Total income (loss) after taxes	(32,552		)	23,795			57,434			—			48,677
Equity income (loss) in consolidated subsidiaries	81,229			—			—			(81,229		)	—
NET INCOME (LOSS)	$	48,677		$	23,795		$	57,434		$	(81,229	)	$	48,677
OTHER COMPREHENSIVE INCOME (LOSS), net of tax:
Unrealized loss on available for sale securities	(3,351		)	—			—			—			(3,351		)
Reclassification adjustments for losses included in net income	605			—			—			—			605
Other comprehensive loss	(2,746		)	—			—			—			(2,746		)
COMPREHENSIVE INCOME (LOSS)	$	45,931		$	23,795		$	57,434		$	(81,229	)	$	45,931
Schedule of Condensed Cash Flow Statement	'
	CONSOLIDATING STATEMENT OF CASH FLOWS
	YEAR ENDED DECEMBER 31, 2013
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Cash provided by operating activities	$	(701,653	)	$	17,456		$	151,491		$	646,173		113,467
	CASH FLOWS FROM INVESTING ACTIVITIES
	Purchase of short term investments and marketable securities	(2,921		)	(66		)	(5,065		)	—			(8,052		)
	Proceeds from sales and maturities of short term investments	29,274			75			5,447			—			34,796
	Capital expenditures	(3,573		)	(50,810		)	(46,430		)	—			(100,813		)
	Acquisitions	(113,214		)	(3,684		)	—			—			(116,898		)
	Other	3,266			444			768			—			4,478
	Investments in consolidated subsidiaries	642,617			68			3,488			(646,173		)	—
	CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	555,449			(53,973		)	(41,792		)	(646,173		)	(186,489		)
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Proceeds from issuance of notes and bank borrowings	300,000			—			—			—			300,000
	Payments on long-term debt, capital leases, and associated costs	(52,568		)	(3,171		)	(4,889		)	—			(60,628		)
	Payments on gold production royalty	—			—			(57,034		)	—			(57,034		)
	Share repurchases	(27,552		)	—			—			—			(27,552		)
	Net intercompany borrowings (lending)	(22,874		)	40,279			(17,405		)	—			—
	Other	(514		)	—			—			—			(514		)
	CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	196,492			37,108			(79,328		)	—			154,272
	NET CHANGE IN CASH AND CASH EQUIVALENTS	50,288			591			30,371			—			81,250
	Cash and cash equivalents at beginning of period	86,788			400			38,252			—			125,440
	Cash and cash equivalents at end of period	$	137,076		$	991		$	68,623		$	—		$	206,690
	CONSOLIDATING STATEMENT OF CASH FLOWS
	YEAR ENDED DECEMBER 31, 2012
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Cash provided by operating activities	$	58,754		$	37,426		$	256,683		$	(81,229	)	$	271,634
	CASH FLOWS FROM INVESTING ACTIVITIES
	Purchase of short term investments and marketable securities	(12,913		)	(46		)	—			—			(12,959		)
	Proceeds from sales and maturities of short term investments	21,590			45			60			—			21,695
	Capital expenditures	(1,531		)	(48,788		)	(65,322		)	—			(115,641		)
	Acquisition of Joaquin mineral rights	(29,338		)	—			41			—			(29,297		)
	Other	3,538			130			(581		)	—			3,087
	Investments in consolidated subsidiaries	(81,229		)	—			—			81,229			—
	CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(99,883		)	(48,659		)	(65,802		)	81,229			(133,115		)
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Payments on long-term debt, capital leases, and associated costs	(4,005		)	(79,839		)	(13,326		)	—			(97,170		)
	Payments on gold production royalty	—			—			(74,734		)	—			(74,734		)
	Reductions of restricted assets associated with the Kensington Term Facility	—			4,645			—			—			4,645
	Share repurchases	(19,971		)	—			—			—			(19,971		)
	Net intercompany borrowings (lending)	67,082			86,394			(153,476		)	—			—
	Other	(861		)	—			—			—			(861		)
	CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	42,245			11,200			(241,536		)	—			(188,091		)
	NET CHANGE IN CASH AND CASH EQUIVALENTS	1,116			(33		)	(50,655		)	—			(49,572		)
	Cash and cash equivalents at beginning of period	85,672			433			88,907			—			175,012
	Cash and cash equivalents at end of period	$	86,788		$	400		$	38,252		$	—		$	125,440
	CONSOLIDATING STATEMENT OF CASH FLOWS
	YEAR ENDED DECEMBER 31, 2011
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	CASH FLOWS FROM OPERATING ACTIVITIES:
	Cash provided by operating activities	$	132,318		$	38,152		$	397,016		$	(151,313	)	$	416,173
	CASH FLOWS FROM INVESTING ACTIVITIES
	Purchase of short term investments and marketable securities	(49,321		)	(60		)	(120		)	—			(49,501		)
	Proceeds from sales and maturities of short term investments	6,138			48			60			—			6,246
	Capital expenditures	(567		)	(61,288		)	(58,133		)	—			(119,988		)
	Other	1,216			903			163			—			2,282
	Investments in consolidated subsidiaries	(151,313		)	—			—			151,313			—
	CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(193,847		)	(60,397		)	(58,030		)	151,313			(160,961		)
	CASH FLOWS FROM FINANCING ACTIVITIES:
	Proceeds from issuance of notes and bank borrowings	—			27,500			—			—			27,500
	Payments on long-term debt, capital leases, and associated costs	(37,983		)	(30,493		)	(17,043		)	—			(85,519		)
Additions to funds held financing	—			(1,326		)	—			—			(1,326		)
Payments on gold production royalty	—			—			(73,191		)	—			(73,191		)
Payments on gold lease facility	(13,800		)	—			—			—			(13,800		)
Net intercompany borrowings (lending)	163,224			26,239			(189,463		)	—			—
Other	18			—			—			—			18
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	111,459			21,920			(279,697		)	—			(146,318		)
NET CHANGE IN CASH AND CASH EQUIVALENTS	49,930			(325		)	59,289			—			108,894
Cash and cash equivalents at beginning of period	35,742			758			29,618			—			66,118
Cash and cash equivalents at end of period	$	85,672		$	433		$	88,907		$	—		$	175,012
Schedule of Condensed Balance Sheet	'
	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 pad	—			50,495			—			—			50,495
	Metal and other 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 pad	—			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	1,545			950			4,348			—			6,843
	Accrued income taxes	34			—			3,085			—			3,119
	Accrued payroll and related benefits	5,152			7,062			6,115			—			18,329
	Accrued interest payable	9,962			4			1,063			(1,054		)	9,975
	Debt and capital leases	—			1,262			309,472			(308,229		)	2,505
	Royalty obligations	—			3,934			44,085			—			48,019
	Reclamation and mine closure	—			—			794			119			913
	Deferred tax liabilities	—			—			1,011			—			1,011
		18,656			29,076			405,993			(309,164		)	144,561
	NON-CURRENT LIABILITIES
	Debt and capital leases	305,335			255			64,820			(64,280		)	306,130
	Royalty obligations	—			17,696			47,446			—			65,142
	Reclamation and mine closure	—			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
	CONSOLIDATING BALANCE SHEET
	31-Dec-12
		Coeur Mining, Inc.			Guarantor Subsidiaries			Non-Guarantor Subsidiaries			Eliminations			Consolidated
	ASSETS
	CURRENT ASSETS
	Cash and cash equivalents	$	86,788		$	400		$	38,252		$	—		$	125,440
	Investments	999			—			—			—			999
	Receivables	8,520			7,643			46,275			—			62,438
	Ore on leach pad	—			22,991			—			—			22,991
	Metal and other inventory	—			45,906			124,764			—			170,670
	Deferred tax assets	—			—			2,458			—			2,458
Prepaid expenses and other	3,395			5,947			11,844			—			21,186
	99,702			82,887			223,593			—			406,182
NON-CURRENT ASSETS
Property, plant and equipment, net	4,183			208,857			470,820			—			683,860
Mining properties, net	—			301,506			1,690,445			—			1,991,951
Ore on leach pad	—			21,356			—			—			21,356
Restricted assets	18,922			60			5,988			—			24,970
Marketable securities	27,065			—			—			—			27,065
Receivables	—			—			48,767			—			48,767
Debt issuance costs, net	3,713			—			—			—			3,713
Deferred tax assets	955			—			—			—			955
Net investment in subsidiaries	1,553,434			—			1,285,862			(2,839,296		)	—
Other	39,120			12,360			318,330			(357,228		)	12,582
TOTAL ASSETS	$	1,747,094		$	627,026		$	4,043,805		$	(3,196,524	)	$	3,221,401
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES
Accounts payable	$	2,954		$	17,211		$	37,317		$	—		$	57,482
Accrued liabilities and other	1,418			4,014			4,570			—			10,002
Accrued income taxes	257			—			26,851			—			27,108
Accrued payroll and related benefits	7,477			8,158			5,671			—			21,306
Accrued interest payable	463			5			1,002			(992		)	478
Debt and capital leases	48,081			3,013			309,539			(304,650		)	55,983
Royalty obligations	—			—			65,104			—			65,104
Reclamation and mine closure	—			—			1,445			(777		)	668
Deferred tax liabilities	—			—			121			—			121
	60,650			32,401			451,620			(306,419		)	238,252
NON-CURRENT LIABILITIES
Debt and capital leases	—			1,675			53,367			(51,582		)	3,460
Royalty obligations	—			—			141,879			—			141,879
Reclamation and mine closure	—			23,149			10,744			777			34,670
Deferred tax liabilities	115,425			—			462,063			—			577,488
Other long-term liabilities	955			8,086			18,331			—			27,372
Intercompany payable (receivable)	(628,216		)	390,480			237,736			—			—
	(511,836		)	423,390			924,120			(50,805		)	784,869
STOCKHOLDERS’ EQUITY
Common stock	903			350			22,760			(23,110		)	903
Additional paid-in capital	2,601,254			107,734			2,748,173			(2,855,907		)	2,601,254
Accumulated deficit	(396,156		)	63,151			(102,868		)	39,717			(396,156		)
Accumulated other comprehensive loss	(7,721		)	—			—			—			(7,721		)
	2,198,280			171,235			2,668,065			(2,839,300		)	2,198,280
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$	1,747,094		$	627,026		$	4,043,805		$	(3,196,524	)	$	3,221,401

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Cash Flow Information	'
	The following table sets forth non-cash financing and investing activities and other cash flow information for the years ended:
		Year Ended December 31,
	Non-cash financing and investing activities:	2013		2012		2011
	Capital expenditures(1)	$	1,183	$	3,402	$	2,936
	Capital lease obligations	—		1,857		4,510
	Non-cash capitalized interest	2,694		845		681
	Non-cash acquisitions and related deferred taxes	317,826		64,133		—
	Other cash flow information:
	Interest paid	14,139		6,092		11,033
	Capitalized interest	2,694		2,663		2,175
	Income taxes paid	26,585		54,680		44,396
	-1	Accrued capital expenditures are recognized in the consolidated statements of cash flows in the period in which they are paid.

Summary_of_Quarterly_Financial1

Summary of Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Data [Abstract]	'
Summary of quarterly results of operations	'
	The following table sets forth a summary of the unaudited quarterly results of operations for the years ended December 31, 2013 and 2012 (in thousands, except per share data):
		Q1		Q2			Q3			Q4
	2013
	Sales of metals	$	171,797	$	204,525		$	200,825		$	168,847
	Net income (loss)	12,270		(35,040		)	(46,265		)	(581,528		)
	Amortization	50,436		57,653			60,874			63,916
	Production costs	88,784		142,924			131,728			100,227
	Exploration expenses	6,841		6,774			3,305			5,440
	Other operating expenses (general and administrative, pre-development, and write-downs)	14,831		48,131			20,195			789,094
	Cash provided by operating activities	12,934		63,338			26,804			10,391
	Capital expenditures	12,827		27,201			32,726			28,059
	Basic net income (loss) per share	$	0.14	$	(0.35	)	$	(0.46	)	$	(5.77	)
	Diluted net income (loss) per share	$	0.14	$	(0.35	)	$	(0.46	)	$	(5.77	)
		Q1		Q2			Q3			Q4
	2012
	Sales of metals	$	204,564	$	254,406		$	230,593		$	205,929
	Net income (loss)	3,975		22,973			(15,821		)	37,550
	Amortization	52,592		61,024			52,844			52,397
	Production costs	92,542		131,182			124,365			106,473
	Exploration expenses	6,567		6,305			6,957			6,441
	Other operating expenses	8,664		13,680			11,836			5,883
	Cash provided by operating activities	17,002		113,203			79,735			61,694
	Capital expenditures	31,647		32,238			29,972			21,784
	Basic net income (loss) per share	$	0.04	$	0.26		$	(0.18	)	$	0.42
	Diluted net income (loss) per share	$	0.04	$	0.26		$	(0.18	)	$	0.42

Summary_of_Significant_Account1

Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2013
Building and Building Improvements [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Useful Life	'7 years
Building and Building Improvements [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Useful Life	'31 years
Machinery and Equipment [Member] | Minimum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Useful Life	'3 years
Machinery and Equipment [Member] | Maximum [Member]	'
Property, Plant and Equipment [Line Items]	'
Property, Plant and Equipment, Useful Life	'13 years

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounting Policies [Abstract]	'	'
Reported ore on the leach pads, total assets	$82,000,000	$44,300,000
Reported ore on the leach pads, current assets	50,495,000	22,991,000
Reported ore on the leach pads, non-current assets	31,528,000	21,356,000
Drilling and Related Costs	$11,600,000	$13,900,000

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Details Textual) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012
Accounting Policies [Abstract]	'	'	'
Maturity of cash and cash equivalents include all highly-liquid investments	'	'three months	'
Maturity Period of Certificates of Deposits	'three months to a year	'	'
Certificates of deposit and cash	$7,014	'	$24,970

Segment_Reporting_Details

Segment Reporting (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

$168,847

$200,825

$204,525

$171,797

$205,929

$230,593

$254,406

$204,564

$745,994

$895,492

$1,021,200

Production costs applicable to sales

-100,227

-131,728

-142,924

-88,784

-106,473

-124,365

-131,182

-92,542

-463,663

-454,562

-419,547

Amortization

-63,916

-60,874

-57,653

-50,436

-52,397

-52,844

-61,024

-52,592

-232,879

-218,857

-224,500

Gross profit (loss)

'

'

'

'

'

'

'

'

49,452

222,073

377,153

Exploration

5,440

3,305

6,774

6,841

6,441

6,957

6,305

6,567

22,360

26,270

19,128

Write-downs

'

'

'

'

'

'

'

'

772,993

5,825

0

Other operating expenses

789,094

20,195

48,131

14,831

5,883

11,836

13,680

8,664

'

'

'

OPERATING INCOME

'

'

'

'

'

'

'

'

-845,159

155,740

307,205

Interest and other income

'

'

'

'

'

'

'

'

13,323

15,041

-6,610

Interest expense, net

'

'

'

'

'

'

'

'

-41,303

-26,169

-34,774

Loss on debt extinguishments

'

'

'

'

'

'

'

'

0

-1,036

-5,526

Fair value adjustments, net

'

'

'

'

'

'

'

'

82,768

-23,487

-52,050

Income tax benefit (expense)

'

'

'

'

'

'

'

'

158,116

-70,807

-114,746

Net income

-581,528

-46,265

-35,040

12,270

37,550

-15,821

22,973

3,975

-650,563

48,677

93,499

Segment assets

'

'

'

'

2,974,056

'

'

'

'

2,974,056

2,963,130

Capital expenditures

28,059

32,726

27,201

12,827

21,784

29,972

32,238

31,647

100,813

115,641

119,988

Palmarejo [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Production costs applicable to sales

'

'

'

'

'

'

'

'

-188,572

-197,478

-186,201

Amortization

'

'

'

'

'

'

'

'

-134,240

-146,595

-159,264

Gross profit (loss)

'

'

'

'

'

'

'

'

1,228

98,025

167,632

Exploration

'

'

'

'

'

'

'

'

7,161

7,575

6,863

Write-downs

'

'

'

'

'

'

'

'

642,094

0

'

Other operating expenses

'

'

'

'

'

'

'

'

0

11

949

OPERATING INCOME

'

'

'

'

'

'

'

'

-648,027

90,439

159,820

Interest and other income

'

'

'

'

'

'

'

'

906

4,017

-9,099

Interest expense, net

'

'

'

'

'

'

'

'

-15,123

-18,938

-23,453

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

76,218

-31,054

-40,046

Income tax benefit (expense)

'

'

'

'

'

'

'

'

107,748

-18,066

-28,023

Net income

'

'

'

'

'

'

'

'

-478,278

26,398

59,199

Segment assets

1,164,852

[1]

'

'

'

1,905,269

[1]

'

'

'

1,164,852

[1]

1,905,269

[1]

2,029,769

[1]

Capital expenditures

'

'

'

'

'

'

'

'

33,730

[1]

38,456

[1]

36,976

[1]

San Bartolome [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Production costs applicable to sales

'

'

'

'

'

'

'

'

-86,827

-71,428

-79,679

Amortization

'

'

'

'

'

'

'

'

-19,565

-16,709

-22,410

Gross profit (loss)

'

'

'

'

'

'

'

'

35,329

89,868

165,413

Exploration

'

'

'

'

'

'

'

'

111

159

248

Write-downs

'

'

'

'

'

'

'

'

0

0

'

Other operating expenses

'

'

'

'

'

'

'

'

5,743

80

342

OPERATING INCOME

'

'

'

'

'

'

'

'

29,475

89,629

164,823

Interest and other income

'

'

'

'

'

'

'

'

2,582

9,719

156

Interest expense, net

'

'

'

'

'

'

'

'

-74

-72

-45

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

0

0

0

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-10,938

-44,632

-59,867

Net income

'

'

'

'

'

'

'

'

21,045

54,644

105,067

Segment assets

289,272

[1]

'

'

'

302,922

[1]

'

'

'

289,272

[1]

302,922

[1]

276,423

[1]

Capital expenditures

'

'

'

'

'

'

'

'

11,568

[1]

25,672

[1]

17,731

[1]

Kensington [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

148,769

110,987

151,186

Production costs applicable to sales

'

'

'

'

'

'

'

'

-104,575

-87,089

-101,672

Amortization

'

'

'

'

'

'

'

'

-63,216

-41,645

-35,839

Gross profit (loss)

'

'

'

'

'

'

'

'

-19,022

-17,747

13,675

Exploration

'

'

'

'

'

'

'

'

4,199

3,283

1,102

Write-downs

'

'

'

'

'

'

'

'

130,694

0

'

Other operating expenses

'

'

'

'

'

'

'

'

269

74

317

OPERATING INCOME

'

'

'

'

'

'

'

'

-154,184

-21,104

12,256

Interest and other income

'

'

'

'

'

'

'

'

-187

-77

4

Interest expense, net

'

'

'

'

'

'

'

'

-424

-2,972

-4,889

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

-1,036

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

7,480

4,089

-8,438

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-1

0

-31

Net income

'

'

'

'

'

'

'

'

-147,316

-21,100

-1,098

Segment assets

343,144

[1]

'

'

'

508,658

[1]

'

'

'

343,144

[1]

508,658

[1]

507,891

[1]

Capital expenditures

'

'

'

'

'

'

'

'

21,404

[1]

36,994

[1]

34,013

[1]

Rochester [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

119,254

132,392

57,331

Production costs applicable to sales

'

'

'

'

'

'

'

'

-77,869

-72,061

-27,848

Amortization

'

'

'

'

'

'

'

'

-10,571

-8,065

-2,824

Gross profit (loss)

'

'

'

'

'

'

'

'

30,814

52,266

26,659

Exploration

'

'

'

'

'

'

'

'

2,653

3,591

1,989

Write-downs

'

'

'

'

'

'

'

'

0

0

'

Other operating expenses

'

'

'

'

'

'

'

'

34,584

1,401

19,931

OPERATING INCOME

'

'

'

'

'

'

'

'

-6,423

47,274

4,739

Interest and other income

'

'

'

'

'

'

'

'

-318

358

57

Interest expense, net

'

'

'

'

'

'

'

'

-20

-26

-21

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

416

0

0

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-2,332

-2,195

-409

Net income

'

'

'

'

'

'

'

'

-8,677

45,411

4,366

Segment assets

176,789

[1]

'

'

'

104,373

[1]

'

'

'

176,789

[1]

104,373

[1]

76,852

[1]

Capital expenditures

'

'

'

'

'

'

'

'

29,406

[1]

11,794

[1]

27,217

[1]

Martha [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Production costs applicable to sales

'

'

'

'

'

'

'

'

0

-17,682

-15,513

Amortization

'

'

'

'

'

'

'

'

-438

-692

-556

Gross profit (loss)

'

'

'

'

'

'

'

'

-1,099

-5,212

-2,722

Exploration

'

'

'

'

'

'

'

'

4,485

8,648

6,367

Write-downs

'

'

'

'

'

'

'

'

0

5,825

'

Other operating expenses

'

'

'

'

'

'

'

'

2,650

2,108

156

OPERATING INCOME

'

'

'

'

'

'

'

'

-8,234

-21,793

-9,245

Interest and other income

'

'

'

'

'

'

'

'

865

-1,153

-544

Interest expense, net

'

'

'

'

'

'

'

'

-1

-3

-458

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

0

0

0

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-137

976

-1,219

Net income

'

'

'

'

'

'

'

'

-7,507

-21,973

-11,466

Segment assets

6,168

[1]

'

'

'

9,813

[1]

'

'

'

6,168

[1]

9,813

[1]

19,717

[1]

Capital expenditures

'

'

'

'

'

'

'

'

10

[1]

1,193

[1]

3,426

[1]

La Preciosa [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

0

'

'

Production costs applicable to sales

'

'

'

'

'

'

'

'

0

'

'

Amortization

'

'

'

'

'

'

'

'

-24

'

'

Gross profit (loss)

'

'

'

'

'

'

'

'

-24

'

'

Exploration

'

'

'

'

'

'

'

'

80

'

'

Write-downs

'

'

'

'

'

'

'

'

0

'

'

Other operating expenses

'

'

'

'

'

'

'

'

3,237

'

'

OPERATING INCOME

'

'

'

'

'

'

'

'

-3,341

'

'

Interest and other income

'

'

'

'

'

'

'

'

15

'

'

Interest expense, net

'

'

'

'

'

'

'

'

0

'

'

Fair value adjustments, net

'

'

'

'

'

'

'

'

0

'

'

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-20,856

'

'

Net income

'

'

'

'

'

'

'

'

-24,182

'

'

Segment assets

410,335

[1]

'

'

'

'

'

'

'

410,335

[1]

'

'

Capital expenditures

'

'

'

'

'

'

'

'

1,122

[1]

'

'

Coeur Capital [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

12,871

18,848

18,737

Production costs applicable to sales

'

'

'

'

'

'

'

'

-5,818

-8,824

-8,634

Amortization

'

'

'

'

'

'

'

'

-3,755

-4,632

-3,155

Gross profit (loss)

'

'

'

'

'

'

'

'

3,298

5,392

6,948

Exploration

'

'

'

'

'

'

'

'

2,069

1,056

662

Write-downs

'

'

'

'

'

'

'

'

0

0

'

Other operating expenses

'

'

'

'

'

'

'

'

1,397

-736

-1

OPERATING INCOME

'

'

'

'

'

'

'

'

-168

5,072

6,287

Interest and other income

'

'

'

'

'

'

'

'

-19,474

-77

1,108

Interest expense, net

'

'

'

'

'

'

'

'

0

0

0

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

0

Fair value adjustments, net

'

'

'

'

'

'

'

'

0

0

0

Income tax benefit (expense)

'

'

'

'

'

'

'

'

2,179

-327

0

Net income

'

'

'

'

'

'

'

'

-17,463

4,668

7,395

Segment assets

62,678

[1]

'

'

'

32,656

[1]

'

'

'

62,678

[1]

32,656

[1]

36,349

[1]

Capital expenditures

'

'

'

'

'

'

'

'

0

0

59

Other Mining Properties [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

0

0

0

Production costs applicable to sales

'

'

'

'

'

'

'

'

-2

0

0

Amortization

'

'

'

'

'

'

'

'

-1,070

-519

-452

Gross profit (loss)

'

'

'

'

'

'

'

'

-1,072

-519

-452

Exploration

'

'

'

'

'

'

'

'

1,602

1,958

1,897

Write-downs

'

'

'

'

'

'

'

'

205

0

'

Other operating expenses

'

'

'

'

'

'

'

'

51,378

31,300

29,126

OPERATING INCOME

'

'

'

'

'

'

'

'

-54,257

-33,777

-31,475

Interest and other income

'

'

'

'

'

'

'

'

10,626

1,649

1,708

Interest expense, net

'

'

'

'

'

'

'

'

-25,661

-4,158

-5,908

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

0

-5,526

Fair value adjustments, net

'

'

'

'

'

'

'

'

-1,346

3,478

-3,566

Income tax benefit (expense)

'

'

'

'

'

'

'

'

82,453

-6,563

-25,197

Net income

'

'

'

'

'

'

'

'

11,815

-39,371

-69,964

Segment assets

105,581

'

'

'

110,365

'

'

'

105,581

110,365

16,129

Capital expenditures

'

'

'

'

'

'

'

'

3,573

1,532

566

Total [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

745,994

895,492

1,021,200

Production costs applicable to sales

'

'

'

'

'

'

'

'

463,663

-454,562

-419,547

Amortization

'

'

'

'

'

'

'

'

232,879

-218,857

-224,500

Gross profit (loss)

'

'

'

'

'

'

'

'

49,452

222,073

377,153

Exploration

'

'

'

'

'

'

'

'

22,360

26,270

19,128

Write-downs

'

'

'

'

'

'

'

'

772,993

5,825

'

Other operating expenses

'

'

'

'

'

'

'

'

99,258

34,238

50,820

OPERATING INCOME

'

'

'

'

'

'

'

'

-845,159

155,740

307,205

Interest and other income

'

'

'

'

'

'

'

'

-4,985

14,436

-6,610

Interest expense, net

'

'

'

'

'

'

'

'

41,303

-26,169

-34,774

Loss on debt extinguishments

'

'

'

'

'

'

'

'

'

-1,036

-5,526

Fair value adjustments, net

'

'

'

'

'

'

'

'

82,768

-23,487

-52,050

Income tax benefit (expense)

'

'

'

'

'

'

'

'

-158,116

-70,807

-114,746

Net income

'

'

'

'

'

'

'

'

-650,563

48,677

93,499

Segment assets

2,558,819

[1]

'

'

'

2,974,056

[1]

'

'

'

2,558,819

[1]

2,974,056

[1]

2,963,130

[1]

Capital expenditures

'

'

'

'

'

'

'

'

100,813

115,641

119,988

Bolivia [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

'

178,005

267,502

Bolivia [Member] | San Bartolome [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

141,721

178,005

267,502

Argentina [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

'

13,162

13,347

Argentina [Member] | Martha [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

-661

13,162

13,347

Mexico [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

'

442,098

513,097

Mexico [Member] | Palmarejo [Member]

'

'

'

'

'

'

'

'

'

'

'

Financial information relating to reporting segments

'

'

'

'

'

'

'

'

'

'

'

Sales of metal

'

'

'

'

'

'

'

'

$324,040

$442,098

$513,097

[1]

(1) Segment assets consist of receivables, prepaids, inventories, property, plant and equipment, and mining properties

Segment_Reporting_Details_1

Segment Reporting (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2010
In Thousands, unless otherwise specified
Assets	'	'	'	'	'	'
Total assets for reportable segments	'	$2,974,056	'	$2,963,130	'	'
Cash and cash equivalents	206,690	125,440	175,012	175,012	66,118	66,118
Short term investments	0	999	'	20,254	'	'
Other assets	120,469	120,906	'	106,045	'	'
TOTAL ASSETS	$2,885,978	$3,221,401	'	$3,264,441	'	'

Segment_Reporting_Details_2

Segment Reporting (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets, Total	$2,237,774	'	'	'	$2,675,811	'	'	'	$2,237,774	$2,675,811	$2,688,703
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	168,847	200,825	204,525	171,797	205,929	230,593	254,406	204,564	745,994	895,492	1,021,200
United States [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Entity's Country of Domicile	384,626	'	'	'	608,051	'	'	'	384,626	608,051	515,096
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	268,023	243,379	208,517
Australia [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Individual Foreign Countries	25,668	'	'	'	29,408	'	'	'	25,668	29,408	33,999
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	'	18,848	18,737
Argentina [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Individual Foreign Countries	94,705	'	'	'	1,705	'	'	'	94,705	1,705	5,213
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	'	13,162	13,347
Bolivia [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Individual Foreign Countries	235,085	'	'	'	240,905	'	'	'	235,085	240,905	230,956
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	'	178,005	267,502
Mexico [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Individual Foreign Countries	1,487,228	'	'	'	1,795,677	'	'	'	1,487,228	1,795,677	1,903,374
Revenues	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	'	442,098	513,097
Other Foreign Countries [Member]	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets	'	'	'	'	'	'	'	'	'	'	'
Long Lived Assets in Individual Foreign Countries	$10,462	'	'	'	$65	'	'	'	$10,462	$65	$65

Segment_Reporting_Segment_Repo

Segment Reporting Segment Reporting (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Auramet [Member] | Palmarejo, San Bartolome, Kensington, Rochester [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	$111.70	$94.60	$50.80
Toronto-Dominion Bank [Member] | Palmarejo, Rochester [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	106.7	65.8	0
INTL Commodities [Member] | Palmarejo, San Bartolome, Rochester [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	84.6	58	112.6
China Gold [Member] | Kensington [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	81.5	43.8	108.9
Valcambi [Member] | Palmarejo, San Bartolome [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	77.2	414.4	385.5
Mitsui [Member] | Palmarejo, Rochester [Member]	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenues	$70.30	$65.60	$105.10

Segment_Reporting_Details_Text

Segment Reporting (Details Textual) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	$168,847	$200,825	$204,525	$171,797	$205,929	$230,593	$254,406	$204,564	$745,994	$895,492	$1,021,200
Silver [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	394,500	549,700	662,600
Gold [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total Revenue	'	'	'	'	'	'	'	'	$351,500	$345,800	$358,600
Metals [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Number of Trading Counterparties	'	'	'	'	'	'	'	'	5	'	'
Metals [Member] | Sales [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Concentration Risk, Percentage	'	'	'	'	'	'	'	'	72.00%	91.00%	82.00%
Gold and Silver [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Number of Trading Counterparties	'	'	'	'	'	'	'	'	8	'	'
Gold and Silver [Member] | Sales [Member]	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Concentration Risk, Percentage	'	'	'	'	'	'	'	'	28.00%	9.00%	18.00%

WriteDowns_Details

Write-Downs (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	$772,993	$5,825	$0
Palmarejo [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	642,100	'	'
Kensington [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	130,700	'	'
Property, Plant and Equipment [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	151,092	0	0
Property, Plant and Equipment [Member] | Palmarejo [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	102,735	0	0
Property, Plant and Equipment [Member] | Kensington [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	48,357	0	0
Mining Properties [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	621,901	5,825	0
Mining Properties [Member] | Palmarejo [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	539,359	0	0
Mining Properties [Member] | Kensington [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	82,337	0	0
Mining Properties [Member] | Martha [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	$205	$5,825	$0

WriteDowns_WriteDowns_Details_

Write-Downs Write-Downs (Details Textual) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	$772,993,000	$5,825,000	$0
Palmarejo [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	642,100,000	'	'
Impairment, tax benefit	179,800,000	'	'
Kensington [Member]	'	'	'
Impaired Long-Lived Assets Held and Used [Line Items]	'	'	'
Write-downs	$130,700,000	'	'

Reclamation_and_Mine_Closure_D

Reclamation and Mine Closure (Details) (USD $)	3 Months Ended	15 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Asset retirement obligation	'	'	'
Asset retirement obligation - Beginning	'	'	$32,714,000
Accretion	3,442,000	2,911,000	'
Addition and changes in estimates	20,236,000	-1,073,000	'
Settlements	-681,000	-95,000	'
Asset retirement obligation - December 31	57,454,000	34,457,000	32,714,000
Reclamation and Mine Closure (Textual) [Abstract]	'	'	'
Accrued reclamation liabilities	$1,000,000	$900,000	'

StockBased_Compensation_Plans_1

Stock-Based Compensation Plans (Details) (Stock Options [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Options [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Weighted average fair value of stock options granted	$12.60	$15.77	$17.85
Expected volatility	76.74%	70.56%	72.56%
Expected life	'5 years 0 months	'5 years 6 months	'6 years 0 months
Risk-free interest rate	0.84%	0.89%	2.30%
Expected dividend yield	0.00%	0.00%	0.00%

StockBased_Compensation_Plans_2

Stock-Based Compensation Plans (Details 1) (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'
Stock options, Shares, Beginning balance	370,000	321,607	330,840
Stock options, Granted, Shares	190,452	151,102	139,916
Stock options, Exercised, Shares	-13,027	-40,173	-129,785
Stock options, Shares, Canceled/Forfeited	-131,855	-62,536	-19,364
Stock options, Shares, Ending balance	415,570	370,000	321,607
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]	'	'	'
Stock options, Weighted Average Exercise Price, Beginning balance	$30.20	$24.60	$24.60
Stock options, Weighted average exercise, granted	$20.41	$26.97	$27.39
Stock options, Weighted average exercise, exercised	$10.77	$11.84	$11.41
Stock options, Weighted average exercise, Canceled/Forfeited	$29.30	$29.22	$40.16
Stock options, Weighted Average Exercise Price, Ending balance	$27.36	$30.20	$24.60
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]	'	'	'
SAR's, Shares, Beginning balance	68,865	107,639	230,563
SAR's, Granted, Shares	0	0	0
SAR's, Shares, Exercised	-6,617	-34,385	-119,801
SAR's, Shares, Canceled/Forfeited	-12,039	-4,389	-3,123
SAR's, Shares, Ending balance	50,209	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
SAR's, Weighted Average Exercise Price, Beginning balance	$13.83	$13.46	$13.46
SAR's, Weighted Average Exercise, Granted	$0	$0	$0
SAR's, Weighted Average Exercise, Exercised	$13.14	$12.73	$13.10
SAR's, Weighted Average Exercise, Canceled/Forfeited	$15.40	$15.40	$14.46
SAR's, Weighted Average Exercise Price, Ending balance	$14.15	$13.83	$13.46

StockBased_Compensation_Plans_3

Stock-Based Compensation Plans (Details 2) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

$ 0.00-$10.00

$10.00-$20.00

$20.00-$30.00

$30.00-$40.00

$40.00-$50.00

$50.00-$60.00

$60.00-$70.00

$70.00-$80.00

Exercise Price Range [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Number of Outstanding Options

'

'

'

'

13,262,000

99,245,000

227,896,000

38,369,000

14,386,000

9,544,000

3,219,000

9,649,000

Outstanding Options, Weighted Average Exercise Price

'

'

'

'

$10

$17.25

$26.07

$39

$48.50

$51.40

$66.60

$70.90

Outstanding Options, Weighted Average Remaining Contractual Term

'

'

'

'

'5 years 1 month 2 days

'9 years 2 months 16 days

'6 years 7 months 10 days

'1 year 3 months

'1 year 4 months 2 days

'10 months 28 days

'7 days

'1 month 21 days

Number of Exercisable Options

'

'

'

'

13,262,000

3,936,000

99,310,000

37,515,000

14,386,000

9,544,000

3,219,000

9,649,000

Exercisable Options, Weighted Average Exercise Price

'

'

'

'

$10

$19.01

$27.29

$39.09

$48.50

$51.40

$66.60

$70.90

Exercisable Options, Weighted Average Remaining Contractual Term

'

'

'

'

'5 years 1 month 2 days

'8 years 4 months 6 days

'4 years 0 months 18 days

'1 year 1 month 13 days

'1 year 4 months 2 days

'10 months 28 days

'7 days

'1 month 21 days

Range of Exercise Price, Lower Range

'

'

'

'

$0

$10

$20

$30

$40

$50

$60

$70

Range of Exercise Price, Upper Range

'

'

'

'

$10

$20

$30

$40

$50

$60

$70

$80

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number

415,570,000

370,000,000

321,607,000

330,840,000

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price

$27.36

$30.20

$24.60

$24.60

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number

190,821,000

'

'

'

'

'

'

'

'

'

'

'

Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price

$33.91

'

'

'

'

'

'

'

'

'

'

'

StockBased_Compensation_Plans_4

Stock-Based Compensation Plans (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Outstanding, beginning balance	239,698	173,509	64,623
Granted, Number of Shares	573,467	230,096	205,463
Vested, Number of Shares	-90,963	-95,336	-85,323
Cancelled/forfeited, Number of Shares	-109,116	-68,571	-11,254
Outstanding, Ending Balance	613,086	239,698	173,509
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
Weighted Average Grant Date Fair Value, beginning balance	$25.38	$11.37	$11.37
Granted, Weighted Average Exercise Price	$15.38	$26.40	$27.37
Vested, Weighted Average Exercise Price	$26.83	$23.15	$19.36
Cancelled/forfeited, Weighted Average Grant Date Fair Value	$23.30	$27.43	$26.89
Weighted Average Grant Date Fair Value, Ending Balance	$16.68	$25.38	$11.37
Restricted Stock Units (RSUs) [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Outstanding, beginning balance	11,411	45,518	126,416
Granted, Number of Shares	0	0	0
Vested, Number of Shares	-11,411	-31,456	-79,014
Cancelled/forfeited, Number of Shares	0	-2,651	-1,884
Outstanding, Ending Balance	0	11,411	45,518
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
Weighted Average Grant Date Fair Value, beginning balance	$24.14	$27.32	$27.32
Granted, Weighted Average Exercise Price	$0	$0	$0
Vested, Weighted Average Exercise Price	$22.74	$25.92	$27.87
Cancelled/forfeited, Weighted Average Grant Date Fair Value	$0	$24.60	$25.03
Weighted Average Grant Date Fair Value, Ending Balance	$0	$24.14	$27.32
Performance Shares [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Outstanding, beginning balance	109,159,000	105,929,000	100,828,000
Granted, Number of Shares	173,773,000	145,508,000	81,489,000
Vested, Number of Shares	-4,160,000	-111,703,000	-56,830,000
Cancelled/forfeited, Number of Shares	-68,377,000	-30,575,000	-19,558,000
Outstanding, Ending Balance	210,395,000	109,159,000	105,929,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
Weighted Average Grant Date Fair Value, beginning balance	$26.92	$16.29	$16.29
Granted, Weighted Average Exercise Price	$23.35	$25.78	$42.72
Vested, Weighted Average Exercise Price	$30.97	$7.96	$23.24
Cancelled/forfeited, Weighted Average Grant Date Fair Value	$34.49	$42.11	$48.62
Weighted Average Grant Date Fair Value, Ending Balance	$28.04	$26.92	$16.29
Performance Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'	'	'
Outstanding, beginning balance	34,239,000	84,539,000	145,023,000
Granted, Number of Shares	34,239,000	32,498,000	0
Vested, Number of Shares	-68,478,000	-74,845,000	-57,948,000
Cancelled/forfeited, Number of Shares	0	-7,953,000	-2,536,000
Outstanding, Ending Balance	0	34,239,000	84,539,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'	'	'
Weighted Average Grant Date Fair Value, beginning balance	$39.78	$35.41	$35.41
Granted, Weighted Average Exercise Price	$38.02	$0	$0
Vested, Weighted Average Exercise Price	$38.02	$31.17	$24.68
Cancelled/forfeited, Weighted Average Grant Date Fair Value	$0	$49.20	$25.03
Weighted Average Grant Date Fair Value, Ending Balance	$0	$39.78	$35.41

StockBased_Compensation_Plans_5

Stock-Based Compensation Plans (Details Textual) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Unrecognized stock-based compensation cost	$7	'	'
Unrecognized stock-based compensation cost, weighted-average period recognized	'1 year 8 months 12 days	'	'
Stock options exercisable	190,821,000	'	'
Weighted average exercise price to exercise stock options exercisable	$33.91	'	'
Stock Appreciation Rights (SARs) [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Cash used to settle awards	0	0.4	1.9
Restricted Stock Units (RSUs) [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Cash used to settle awards	0.2	0.9	2.2
Performance Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Cash used to settle awards	1.2	2.1	1.4
Stock Options and Stock Appreciation Rights [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Unrecognized stock-based compensation cost	0.9	'	'
Unrecognized stock-based compensation cost, weighted-average period recognized	'1 year 4 months 24 days	'	'
Restricted stock and restricted stock unit [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Unrecognized stock-based compensation cost	3.6	'	'
Unrecognized stock-based compensation cost, weighted-average period recognized	'1 year 8 months 24 days	'	'
Performance Shares and Units [Member]	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Unrecognized stock-based compensation cost	2.4	'	'
Unrecognized stock-based compensation cost, weighted-average period recognized	'1 year 10 months 18 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	$4.80	$8	$8.10

Defined_Contribution_and_401k_1

Defined Contribution and 401(k) Plans (Details) (Retirement Savings Plan under Section 401 (k) [Member], USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Retirement Savings Plan under Section 401 (k) [Member]	'	'	'	'
Additional Defined Contribution And 401(k) (Textual) [Abstract]	'	'	'	'
Percentage of maximum limit for employees to contribute their cash compensation	75.00%	'	'	'
Percentage of employee compensation plus matching contribution	100.00%	'	'	'
Percentage of employee contribution	3.00%	'	'	'
Percentage of employers matching contribution	50.00%	'	'	'
Percentage of additional employee contribution	2.00%	'	'	'
Total plan expenses	'	$4.10	$4.10	$2.90

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Deferred:	'	'	'
Income tax provision from continuing operations	$158,116	($70,807)	($114,746)
Components of loss from continuing operations before income taxes	'	'	'
United States	-242,562	-3,443	-38,372
Foreign	-566,117	122,927	246,617
Income before income taxes	-808,679	119,484	208,245
United States - Alternative minimum tax [Member]	'	'	'
Current:	'	'	'
Federal tax expense (benefit)	4	-257	2,015
United States - State Mining Taxes [Member]	'	'	'
Current:	'	'	'
Federal tax expense (benefit)	-714	-2,195	-409
United States - Foreign withholding tax [Member]	'	'	'
Current:	'	'	'
Federal tax expense (benefit)	397	-736	-842
Argentina [Member]	'	'	'
Current:	'	'	'
Foreign tax expense (benefit)	-137	976	-1,219
Deferred:	'	'	'
Foreign tax expense (benefit)	8,062	0	0
Australia [Member]	'	'	'
Current:	'	'	'
Foreign tax expense (benefit)	-914	-1,760	-1,755
Deferred:	'	'	'
Foreign tax expense (benefit)	-2	-223	-661
Mexico [Member]	'	'	'
Current:	'	'	'
Foreign tax expense (benefit)	-9,046	-7,814	-1,084
Deferred:	'	'	'
Foreign tax expense (benefit)	94,851	-10,579	-28,022
Bolivia [Member]	'	'	'
Current:	'	'	'
Foreign tax expense (benefit)	-6,716	-43,546	-59,660
Deferred:	'	'	'
Foreign tax expense (benefit)	-4,222	-1,087	-207
Canada [Member]	'	'	'
Current:	'	'	'
Foreign tax expense (benefit)	-1,936	0	0
United States [Member]	'	'	'
Deferred:	'	'	'
Federal tax expense (benefit)	$78,489	($3,586)	($22,902)

Income_Taxes_Details_1

Income Taxes (Details 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of effective tax rate with the federal statutory tax rate	'	'	'
Tax benefit (expense) from continuing operations	$283,038	($41,819)	($72,886)
State tax provision from continuing operations	2,245	-3,151	-11,009
Percentage depletion and related deductions	0	7,461	0
Change in valuation allowance	-106,802	-12,651	-6,032
Non-deductible imputed interest	-214	-525	-808
Uncertain tax positions	-5,209	-9,849	-1,279
U.S. and foreign non-deductible expenses	-2,383	-4,206	-10,648
Foreign exchange rates	13,937	-10,416	-4,440
Foreign inflation and indexing	2,937	712	-3,829
Foreign tax rate differences	-24,108	3,967	22,795
Foreign withholding taxes	-100,331	-5,861	-23,246
Other, net	13,153	5,531	-3,364
Change in Mexico permanent reinvestment assertion	81,853	0	0
Income tax provision from continuing operations	$158,116	($70,807)	($114,746)

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred tax liabilities:	'	'
Mineral Properties	$344,152	$461,742
Mexican mining royalty tax	76,386	0
Foreign subsidiaries - unremitted earnings	182,464	247,000
Inventory	2,746	'
Property, plant and equipment, net	33,094	60,266
Deferred tax liabilities, Total	638,842	769,008
Deferred tax assets:	'	'
Net operating loss carryforwards	130,170	99,323
Foreign subsidiaries - future tax credits	163,947	145,395
Royalty and other long-term debt	11,616	42,221
Capital loss carryforwards	34,930	35,315
Asset retirement obligation	18,589	8,623
Unrealized foreign currency loss and other	9,567	1,590
Accrued expenses	14,756	20,692
Tax credit carryforwards	23,585	22,811
Inventory	0	1,418
Deferred tax assets, gross	407,160	377,388
Valuation allowance	289,378	182,576
Deferred tax assets, net	117,782	194,812
Net deferred tax liabilities	($521,060)	($574,196)

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Recorded valuation allowances	'	'
Recorded valuation allowances	$289,378	$182,576
United States [Member]	'	'
Recorded valuation allowances	'	'
Recorded valuation allowances	236,653	132,790
Argentina [Member]	'	'
Recorded valuation allowances	'	'
Recorded valuation allowances	17,005	18,442
Canada [Member]	'	'
Recorded valuation allowances	'	'
Recorded valuation allowances	4,453	2,227
New Zealand [Member]	'	'
Recorded valuation allowances	'	'
Recorded valuation allowances	27,292	27,125
Other [Member]	'	'
Recorded valuation allowances	'	'
Recorded valuation allowances	$3,975	$1,992

Income_Taxes_Details_4

Income Taxes (Details 4) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Reconciliation of the beginning and ending amount related to unrecognized tax benefits	'	'
Unrecognized tax benefits at January 1	$10,511	$1,980
Gross increase to current period tax positions	2,231	9,227
Gross decrease to prior period tax positions	2,761	-696
Unrecognized tax benefits at December 31	15,471	10,511
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	($32)	'

Income_Taxes_Details_5

Income Taxes (Details 5) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Tax attribute carryforwards	'
Regular net operating losses	$363,530
Alternative minimum tax net operating losses	99,954
Capital losses	93,837
Alternative minimum tax credits	3,136
Foreign tax credits	19,494
United States [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	226,985
Alternative minimum tax net operating losses	99,954
Capital losses	90,258
Alternative minimum tax credits	3,136
Foreign tax credits	19,494
Argentina [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	21,061
Alternative minimum tax net operating losses	0
Capital losses	0
Alternative minimum tax credits	0
Foreign tax credits	0
Canada [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	7,203
Alternative minimum tax net operating losses	0
Capital losses	3,579
Alternative minimum tax credits	0
Foreign tax credits	0
Mexico [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	4,170
Alternative minimum tax net operating losses	0
Capital losses	0
Alternative minimum tax credits	0
Foreign tax credits	0
New Zealand [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	97,470
Alternative minimum tax net operating losses	0
Capital losses	0
Alternative minimum tax credits	0
Foreign tax credits	0
Other [Member]	'
Tax attribute carryforwards	'
Regular net operating losses	6,641
Alternative minimum tax net operating losses	0
Capital losses	0
Alternative minimum tax credits	0
Foreign tax credits	$0

Income_Taxes_Details_Textual

Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]	'	'	'
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Other Information	'14.3	'10.3	'1.1
Income Taxes (Textual) [Abstract]	'	'	'
Income tax expense (benefit)	$158,116,000	($70,807,000)	($114,746,000)
Additional Income Taxes (Textual) [Abstract]	'	'	'
Interest and penalties associated with uncertain tax positions	0	0	0
Cumulative amount of temporary differences related to investments in foreign subsidiaries	$81,000,000	'	'

Net_Income_Loss_Per_Share_Deta

Net Income (Loss) Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Basic EPS	'	'	'	'	'	'	'	'	'	'	'
Net income (loss) available to common stockholders	($581,528)	($46,265)	($35,040)	$12,270	$37,550	($15,821)	$22,973	$3,975	($650,563)	$48,677	$93,499
Weighted average shares	'	'	'	'	'	'	'	'	'	'	'
Basic (in shares)	'	'	'	'	'	'	'	'	97,864,000	89,437,000	89,383,000
Effect of share based compensation plans (in shares)	'	'	'	'	'	'	'	'	0	166,000	342,000
Diluted (in shares)	'	'	'	'	'	'	'	'	97,864,000	89,603,000	89,725,000
Income (loss) per share	'	'	'	'	'	'	'	'	'	'	'
Basic (in dollars per share)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.05
Diluted (in dollars per share)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.04
Convertible Senior Notes Due March 2028 [Member]	'	'	'	'	'	'	'	'	'	'	'
Earnings Per Share (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Debt Instrument, Interest Rate, Stated Percentage	3.25%	'	'	'	3.25%	'	'	'	3.25%	3.25%	'
Stock Options [Member]	'	'	'	'	'	'	'	'	'	'	'
Earnings Per Share (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Number of shares of common stock equivalents related to convertible debt	'	'	'	'	'	'	'	'	1,111,021	479,767	4,258
Convertible Debt [Member]	'	'	'	'	'	'	'	'	'	'	'
Earnings Per Share (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Number of shares of common stock equivalents related to convertible debt	'	'	'	'	'	'	'	'	'	'	1,059,228

Acquisitions_Details

Acquisitions (Details) (USD $)	0 Months Ended	1 Months Ended
In Thousands, except Share data, unless otherwise specified	Apr. 16, 2013	Dec. 31, 2013
	Orko Silver Corporation [Member]	Global Royalty Corp [Member]
Business Combination, Consideration Transferred [Abstract]	'	'
Common shares issued	$173,363	$22,198
Cash	99,059	3,849
Warrants (1,588,768 valued at $3.64 per warrant)	5,777	'
Transaction advisory fees and other acquisition costs	17,642	300
Total purchase price	295,841	26,047
Current liabilities	2,616	679
Deferred income taxes	114,339	7,926
Total liabilities assumed	116,955	8,605
Total Consideration	412,796	34,652
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]	'	'
Cash	3,487	165
Other current assets	635	276
Metal and other inventory	'	111
Mineral interests	408,352	34,100
Other assets	322	'
Total assets acquired	$412,796	$34,652
Common shares issued for acquisition	11,572,918	2,130,351,000
Common shares issued, price per share	$14.98	$10,420
Number of warrants issued	1,588,768,000	'
Warrants, price per warrant	$3,640	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets:	'	'
Derivative Asset, Fair Value	$135	'
Total assets	14,656	29,007
Liabilities:	'	'
Total liabilities	63,558	154,397
Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	40,338	145,098
Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	21,630	'
Put and call options [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	'	943
Liabilities:	'	'
Derivative Liability, Fair Value	1,590	9,299
Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	'	999
Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	14,521	27,065
Fair Value, Inputs, Level 1 [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	0	'
Total assets	14,521	28,064
Liabilities:	'	'
Total liabilities	0	0
Fair Value, Inputs, Level 1 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	0	'
Fair Value, Inputs, Level 1 [Member] | Put and call options [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	'	0
Liabilities:	'	'
Derivative Liability, Fair Value	0	0
Fair Value, Inputs, Level 1 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	'	999
Fair Value, Inputs, Level 1 [Member] | Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	14,521	27,065
Fair Value, Inputs, Level 2 [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	135	'
Total assets	135	943
Liabilities:	'	'
Total liabilities	1,590	154,397
Fair Value, Inputs, Level 2 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	0	145,098
Fair Value, Inputs, Level 2 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	0	'
Fair Value, Inputs, Level 2 [Member] | Put and call options [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	'	943
Liabilities:	'	'
Derivative Liability, Fair Value	1,590	9,299
Fair Value, Inputs, Level 2 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	'	0
Fair Value, Inputs, Level 2 [Member] | Marketable securities [Member]	'	'
Assets:	'	'
Restricted certificates of deposits	0	0
Fair Value, Inputs, Level 3 [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	0	'
Total assets	0	0
Liabilities:	'	'
Total liabilities	61,968	0
Fair Value, Inputs, Level 3 [Member] | Royalty obligation embedded derivative [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	40,338	0
Fair Value, Inputs, Level 3 [Member] | Royalty Obligation [Member]	'	'
Liabilities:	'	'
Derivative Liability, Fair Value	21,630	'
Fair Value, Inputs, Level 3 [Member] | Put and call options [Member]	'	'
Assets:	'	'
Derivative Asset, Fair Value	'	0
Liabilities:	'	'
Derivative Liability, Fair Value	0	0
Fair Value, Inputs, Level 3 [Member] | Short-term Deposit [Member]	'	'
Assets:	'	'
Short-term Deposits	'	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 1) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Palmarejo Royalty Obligation [Member]	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'
Balance at the beginning of the period	$0
Additions	0
Revaluation	-104,760
Transfers from Level 2	145,098
Balance at the end of the period	40,338
Unrealized gains (losses) recognized in income statement	104,760
Rochester Royalty Obligation [Member]	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'
Balance at the beginning of the period	0
Additions	22,046
Revaluation	-416
Transfers from Level 2	0
Balance at the end of the period	21,630
Unrealized gains (losses) recognized in income statement	$416

Fair_Value_Measurements_Fair_V1

Fair Value Measurements Fair Value Measurements (Details 2) (Fair Value, Inputs, Level 3 [Member])	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Price per ounce	25
Property, Plant and Equipment [Member] | Minimum [Member] | Discounted Cash Flow [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Discount Rate	8.50%
Property, Plant and Equipment [Member] | Maximum [Member] | Discounted Cash Flow [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Discount Rate	10.50%
Mining Properties [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Price per ounce	1,450
Mining Properties [Member] | Minimum [Member] | Discounted Cash Flow [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Discount Rate	8.50%
Mining Properties [Member] | Maximum [Member] | Discounted Cash Flow [Member]	'
Fair Value Inputs, Assets, Quantitative Information [Line Items]	'
Discount Rate	10.50%

Fair_Value_Measurements_Fair_V2

Fair Value Measurements Fair Value Measurements (Details 3) (Portion at Other than Fair Value, Fair Value Disclosure [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Convertible Senior Notes Due March 2028 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	$5,067	$48,220
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	5,067	48,220
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	0	0
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
Senior Notes due 2021 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term Debt, Fair Value	307,314	'
Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 1 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term Debt, Fair Value	307,314	'
Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 2 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term Debt, Fair Value	0	'
Senior Notes due 2021 [Member] | Fair Value, Inputs, Level 3 [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Long-term Debt, Fair Value	0	'
Palmarejo gold production royalty [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Financial Liabilities Not Measured at Fair Value	65,212	90,617
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
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	90,617
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	$65,212	$0

Fair_Value_Measurements_Fair_V3

Fair Value Measurements Fair Value Measurements (Details Textual) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Jan. 29, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
				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, Inputs, Level 3 [Member]	Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Expected Royalty Duration, Rochester	'	'	'	'	'	'	'	'2 years 6 months	'5 years 1 month 6 days	'	'
Liabilities, Fair Value Disclosure	$63,558	$154,397	'	'	'	'	'	'	'	$61,968	$0
Impairment of Long-Lived Assets Held-for-use	$772,993	$5,825	$0	'	'	'	'	'	'	'	'
Debt Instrument, Interest Rate, Stated Percentage	'	'	'	3.25%	3.25%	7.88%	7.88%	'	'	'	'

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Details)

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

USD ($)

MXN

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [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]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [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]

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]

Gold call options sold [Member]

Gold call options sold [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [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]

2014 [Member]

2014 [Member]

2015 [Member]

2015 [Member]

Thereafter [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [Member]

2013 [Member]

2014 [Member]

2015 [Member]

Thereafter [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]

Mexico peso put options [Member]

Mexico peso put options [Member]

Mexico peso call options [Member]

Mexico peso call options [Member]

USD ($)

USD ($)

USD ($)

USD ($)

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

MXN

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [Member]

2013 [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

oz

oz

USD ($)

MXN

USD ($)

MXN

USD ($)

MXN

Derivative instruments Settlement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, notional amount

'

'

$29,831,000

$24,764,000

$15,141,000

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3,645,000

$0

$0

$0

$38,760,000

$0

$0

$0

$274,000

$0

$0

$0

$238,000

$0

$0

$0

'

'

'

'

'

'

'

'

Derivative average gold price in excess of minimum contractual Deduction Rate

400

'

498

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional ounces

'

'

59,856

50,153

30,922

0

146,460

0

0

0

0

0

0

567,150,000

0

0

0

0

0

0

666,075,000

0

0

0

0

0

0

173,752

0

0

0

30,780

0

0

0

25,000

0

0

0

1,250,000

0

0

0

'

'

'

'

'

'

'

'

Foreign exchange contracts of MXP

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

26,100,000

'

12,000,000

'

45,000,000

'

45,000,000

'

Fair value of foreign exchange contracts

'

'

'

'

'

'

'

$0

'

$0

'

$0

'

'

$0

'

$0

'

$0

'

'

$0

'

$0

'

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average rate (MXP/$)

'

14.8

'

'

'

'

'

'

0

'

0

'

0

'

'

0

'

0

'

0

'

'

0

'

0

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13.11

'

12.21

'

12,600

'

14,800

Derivative average price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.98

0

0

0

1,259

0

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,150

0

0

0

17

0

0

0

'

'

'

'

'

'

'

'

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair value of the derivative instruments	'	'
Derivative Asset, Fair Value	$135	'
Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Asset, Fair Value	184	1,406
Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	1,640	2,488
Other long-term liabilities [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	7,274
Current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	17,650	41,146
Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	22,688	103,952
Forward foreign exchange contracts [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Asset, Fair Value	38	376
Forward foreign exchange contracts [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	947	300
Forward foreign exchange contracts [Member] | Other long-term liabilities [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
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	'	'
Derivative Asset, Fair Value	'	'
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] | Other long-term liabilities [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	17,650	41,146
Palmarejo gold production royalty [Member] | Non-current portion of royalty obligation [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	22,688	103,952
Put and call options, net [Member] | Prepaid expenses and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Asset, Fair Value	135	'
Put and call options, net [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	2,025
Put and call options, net [Member] | Other long-term liabilities [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	7,274
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	'	'
Derivative Asset, Fair Value	11	1,030
Concentrate sales contracts [Member] | Accrued liabilities and other [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	693	163
Concentrate sales contracts [Member] | Other long-term liabilities [Member]	'	'
Fair value of the derivative instruments	'	'
Derivative Liability, Fair Value	'	'
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	'	26,100
Derivative Instruments Settle in Year One [Member] | 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 $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	$82,768	($23,487)	($52,050)
Fair value adjustments, net	80,928	-23,426	-49,162
Concentrate Sales Contracts [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Sales of Metals	-1,995	1,682	2,505
Forward foreign exchange contract [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Production costs applicable to sales	589	-1,621	383
Fair value adjustments, net	-985	3,264	-3,192
Gold lease facility [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	0	0	-132
Forward gold contract [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	0	0	34
Silver Ounces Receivables [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	0	213	-276
Palmarejo gold production royalty [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	76,200	-31,053	-40,046
Put and call options [Member]	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'
Fair value adjustments, net	$7,119	$4,089	($8,438)

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Details Textual)

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Sep. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Sep. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Jan. 21, 2009

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

USD ($)

USD ($)

USD ($)

MXN

oz

Put Option [Member]

Cerro Bayo Mine [Member]

Cerro Bayo Mine [Member]

Franco-Nevada warrant [Member]

Franco-Nevada warrant [Member]

Franco-Nevada warrant [Member]

Gold lease forward purchase contracts [Member]

Forward Gold Contract [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]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Commodity [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [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]

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]

oz

oz

oz

USD ($)

USD ($)

USD ($)

USD ($)

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 ($)

Call Option [Member]

USD ($)

USD ($)

USD ($)

USD ($)

Put Option [Member]

Put Option [Member]

Palmarejo gold production royalty [Member]

Mexican peso forward purchase contracts [Member]

Gold call options sold [Member]

Gold put options purchased [Member]

Silver put options purchased [Member]

Forward foreign exchange contracts [Member]

Forward foreign exchange contracts [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]

delivery

oz

USD ($)

USD ($)

USD ($)

MXN

oz

USD ($)

oz

oz

oz

oz

oz

oz

Mexican peso forward purchase contracts [Member]

Mexican peso forward purchase contracts [Member]

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

oz

USD ($)

MXN

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

'

'

'

'

'

'

'

'

'

'

'

'

'

140,931

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value Assumptions, Risk Free Interest Rate

'

5.70%

4.20%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value liability of the embedded derivative

'

'

'

'

'

'

'

'

$40,300,000

$145,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Company recognized Mark to Market loss

'

'

'

'

'

'

'

'

104,800,000

14,300,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of Gold Production

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual Inflation Compounding Adjustment

'

'

'

'

'

'

'

'

'

'

'

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Realized losses

'

'

'

'

'

'

'

'

28,700,000

45,400,000

0

2,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Foreign exchange contracts of MXP

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

26,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,000,000

'

'

'

'

'

'

'

'

'

Weighted average exchange rate of MXP

'

'

'

14.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13.11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12.21

'

'

'

'

'

'

'

'

Fair value of foreign exchange contracts

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-900,000

-100

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Strike Price of Put Options

'

'

'

12.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional Amount of Foreign Currency Derivatives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

45,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

400,000

'

'

'

'

'

'

'

'

'

'

'

500,000

'

'

1,000,000

3,300,000

3,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Mark-to-market Realized gains on forward foreign exchange contract

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,000

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative Liability, Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Call Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,968

1,968

97,000

'

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding Put Options of Gold

97,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

122,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair Value, Asian Put Options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

'

Outstanding Call Options of Gold

'

'

'

'

84,500

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

97,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Average Put Feature of Each Collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

968

968

1,150

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contract expiration date

'

'

'

'

'

'3 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional ounces

'

'

'

'

'

'

'

'

'

'

'

'

10,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

146,460

1,250,000

25,000

1,250,000

'

'

'

'

'

'

'

'

'

'

Derivative swap fixed price (in usd per oz)

'

'

'

'

'

'

'

'

'

'

'

'

1,380

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Average strike price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17

1,150

'

'

'

'

'

'

'

'

'

'

'

Unrealized gain (loss)

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Received silver in connection with sales of asset

'

'

'

'

'

'

125,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of equal quarterly installments to be delivered

'

'

'

'

'

'

6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Company recognized mark to market gain

'

'

'

'

'

'

600,000

800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of the contract

'

135,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

184,000

1,406,000

'

'

38,000

376,000

135,000

'

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding provisionally priced sales consists of silver

'

200,000

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding provisionally priced sales consists of Gold

'

30,780

11,957

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of gold and silver including embedded derivative

'

42,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Outstanding provisionally priced sales

'

'

$33,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investments_Details

Investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]	'	'	'
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax	($13,900,000)	'	'
Investment in Marketable Securities (Textual) [Abstract]	'	'	'
Unrealized gain (loss) on available for sale securities	-8,489,000	-3,351,000	-4,975,000
Impairment loss	18,308,000	605,000	0
Short term investments	0	999,000	20,254,000
Marketable securities [Member]	'	'	'
Available-for-sale Securities	'	'	'
Cost	17,649,000	34,786,000	'
Gross Unrealized Losses	-3,300,000	-10,443,000	'
Gross Unrealized Gains	172,000	2,722,000	'
Available-for-sale Securities, Estimated Fair Value	14,521,000	27,065,000	'
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]	'	'	'
Unrealized Losses, Less than twelve months	-3,300,000	'	'
Unrealized Losses, Twelve months or more	0	'	'
Unrealized Losses Total	-3,300,000	-10,443,000	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]	'	'	'
Fair Value, Less than twelve months	4,146,000	'	'
Fair Value, Twelve months or more	0	'	'
Fair Value, Total	$4,146,000	'	'

Receivables_Details

Receivables (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]	'	'
Allowance for doubtful accounts	$0	$0
Receivables - current portion	'	'
Accounts receivable - trade	17,303,000	8,701,000
Refundable income tax	6,240,000	9,331,000
Refundable value added tax	49,168,000	40,020,000
Accounts receivable - other	8,363,000	4,386,000
Receivables, net current portion	81,074,000	62,438,000
Receivables - non-current portion	'	'
Refundable value added tax	$36,574,000	$48,767,000

Metal_and_Other_Inventory_Deta

Metal and Other Inventory (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Inventories	'	'
Concentrate and dore inventory	$67,105	$91,130
Supplies	64,918	79,540
Metal and other inventory	$132,023	$170,670

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, plant and equipment	'	'
Land	$1,764	$2,010
Building improvements	489,535	581,286
Machinery and equipment	365,783	360,199
Capitalized leases for machinery, equipment and buildings	16,133	35,129
Property, plant and equipment, gross	873,215	978,624
Accumulated depreciation and amortization	-395,520	-313,067
Property Plant and Equipment Net before Construction in Progress	477,695	665,557
Construction in Progress	8,578	18,303
Property, plant and equipment, net	$486,273	$683,860

Property_Plant_and_Equipment_D1

Property, Plant and Equipment (Details Textual) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]	'	'	'
Rent expense charged for all operating lease agreements	$16.70	$14.10	$14.20

Mining_Properties_Details

Mining Properties (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Mining Properties	'	'
Operational mining properties:	$641,305	$674,636
Accumulated depletion	-315,541	-247,562
Operational mining properties, net	325,764	427,074
Mineral interest	1,753,129	1,822,635
Accumulated depletion	-327,392	-257,758
Mineral interest, net	1,425,737	1,564,877
Total mining properties	1,751,501	1,991,951
Palmarejo [Member]	'	'
Mining Properties	'	'
Operational mining properties:	151,845	155,722
Accumulated depletion	-110,143	-82,037
Operational mining properties, net	41,702	73,685
Mineral interest	1,146,572	1,658,389
Accumulated depletion	-300,187	-235,795
Mineral interest, net	846,385	1,422,594
Total mining properties	888,087	1,496,279
San Bartolome [Member]	'	'
Mining Properties	'	'
Operational mining properties:	70,761	70,322
Accumulated depletion	-22,236	-18,439
Operational mining properties, net	48,525	51,883
Mineral interest	26,643	26,642
Accumulated depletion	-8,759	-7,338
Mineral interest, net	17,884	19,304
Total mining properties	66,409	71,187
Kensington [Member]	'	'
Mining Properties	'	'
Operational mining properties:	268,351	333,619
Accumulated depletion	-80,032	-46,649
Operational mining properties, net	188,319	286,970
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	188,319	286,970
Rochester [Member]	'	'
Mining Properties	'	'
Operational mining properties:	150,348	114,973
Accumulated depletion	-103,130	-100,437
Operational mining properties, net	47,218	14,536
Mineral interest	0	0
Accumulated depletion	0	0
Mineral interest, net	0	0
Total mining properties	47,218	14,536
Endeavor [Member]	'	'
Mining Properties	'	'
Operational mining properties:	0	0
Accumulated depletion	0	0
Operational mining properties, net	0	0
Mineral interest	408,352	44,033
Accumulated depletion	0	-14,625
Mineral interest, net	408,352	29,408
Total mining properties	408,352	29,408
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	93,571
Accumulated depletion	0	0
Mineral interest, net	93,429	93,571
Total mining properties	93,429	93,571
Other Mining Properties [Member]	'	'
Mining Properties	'	'
Operational mining properties:	0	'
Accumulated depletion	0	'
Operational mining properties, net	0	'
Mineral interest	78,133	'
Accumulated depletion	-18,446	'
Mineral interest, net	59,687	'
Total mining properties	$59,687	'

Mining_Properties_Details_Text

Mining Properties (Details Textual)	1 Months Ended	12 Months Ended			12 Months Ended
	Mar. 31, 2006	Dec. 31, 2013	Dec. 31, 2012	23-May-05	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
	oz	oz	mi	Endeavor [Member]	McEwen Mining Inc, El Gallo, Magistral Mine [Member]	Dynasty Metals and Mining, Inc Zaruma Mine [Member]	Cerro Bayo Mine [Member]
				oz
Property, Plant and Equipment [Line Items]	'	'	'	'	'	'	'
Distance of Lynn Canal from mines	'	'	45	'	'	'	'
Quantity of acquired silver production and reserves	'	'	'	17,700,000	'	'	'
Silver production and reserves payable ounces	20,000,000	'	'	'	'	'	'
Cumulative ounces of silver received by CDE Australia	'	4,800,000	'	'	'	'	'
Current ore reserve payable ounces based on current metallurgical recovery and current smelter contract terms	'	3,700,000	'	'	'	'	'
Net smelter return (in percent)	'	'	'	'	3.50%	1.50%	2.00%

Debt_Details

Debt (Details) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Feb. 12, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

oz

oz

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]

3.25% Convertible Senior Notes due March 2028 [Member]

Senior Notes due 2021 [Member]

Senior Notes due 2021 [Member]

Senior Notes due 2021 [Member]

1.25% Convertible Senior Notes due January 2024 (terminated in 2011) [Member]

1.25% Convertible Senior Notes due January 2024 (terminated in 2011) [Member]

1.25% Convertible Senior Notes due January 2024 (terminated in 2011) [Member]

Senior Term Notes due December 31, 2012 [Member]

Senior Term Notes due December 31, 2012 [Member]

Senior Term Notes due December 31, 2012 [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Capital Lease Obligations [Member]

Other debt obligations [Member]

Other debt obligations [Member]

Other debt obligations [Member]

Call Option [Member]

Palmarejo gold production royalty [Member]

Maximum [Member]

Maximum [Member]

Kensington Term Facility [Member]

oz

Rate

Palmarejo gold production royalty [Member]

oz

oz

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ratio of Adjusted Earnings Before Interest Taxes Depreciation and Amortization to Interest Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3

'

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

$400

$400

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gold under collars protection

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

243,750

'

'

'

Long term debt and capital lease obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current

2,505,000

2,505,000

55,983,000

'

0

48,081,000

'

48,700,000

0

0

'

'

'

'

'

'

'

'

'

'

2,505,000

7,902,000

'

'

'

'

'

'

'

'

Non-current

306,130,000

306,130,000

3,460,000

'

5,334,000

0

'

'

300,000,000

0

'

'

'

'

'

'

'

'

'

'

796,000

3,460,000

'

'

'

'

'

'

'

'

Interest expenses incurred for various debt instruments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Expense

'

'

'

'

466,000

1,581,000

1,581,000

'

21,853,000

0

0

0

0

1,000

0

0

1,381,000

0

2,339,000

4,383,000

415,000

997,000

1,620,000

291,000

881,000

1,379,000

'

'

'

'

Line of Credit Facility, Commitment Fee Amount

612,000

'

213,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of Franco Nevada royalty obligation

'

17,641,000

19,139,000

22,230,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amortization of debt issuance costs

'

2,143,000

1,146,000

2,050,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of debt discount

'

576,000

2,536,000

2,324,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized interest

'

-2,694,000

-2,663,000

-2,175,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total interest expense, net of capitalized interest

'

$41,303,000

$26,169,000

$34,774,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payment of Royalty on Ounces of Gold

259,069

259,069

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt_Details_Textual

Debt (Details Textual) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jan. 21, 2009

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Feb. 12, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jan. 29, 2013

Dec. 31, 2013

Dec. 31, 2013

Aug. 16, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

oz

oz

Debt Instrument, Redemption Period, End of 2015 [Member]

Debt Instrument, Redemption Period, After 2016 [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]

3.25% 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]

Senior Notes due Two Thousand Twenty One [Member]

Banco Bisa Line of Credit [Member]

Banco de Credito Line of Credit [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Kensington Term Facility [Member]

Palmarejo gold production royalty [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

LIBOR [Member]

LIBOR [Member]

Alternate Base Rate [Member]

Alternate Base Rate [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Palmarejo gold production royalty [Member]

Call Option [Member]

Put Option [Member]

Rate

Debt Instrument Redemption Period, Quarter ended September 30, 2014 [Member]

Rate

Rate

Debt Instrument, Redemption Period, End of 2015 [Member]

Debt Instrument, Redemption Period, After 2016 [Member]

Rate

Debt Instrument Redemption Period, Quarter ended September 30, 2014 [Member]

Rate

Rate

Debt Instrument, Redemption Period, End of 2015 [Member]

Debt Instrument, Redemption Period, After 2016 [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

oz

Maximum [Member]

oz

oz

Rate

Rate

Rate

Rate

Rate

Rate

oz

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ore on leach pads

$50,495,000

$50,495,000

$22,991,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and capital lease obligations (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, 2014

8,200,000

8,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, 2015

5,100,000

5,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, 2016

1,600,000

1,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, 2017

800,000

800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, 2018

800,000

800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Future lease payments, Thereafter

3,300,000

3,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate on notes

'

'

'

'

'

'

'

'

'

3.25%

3.25%

'

'

7.88%

'

'

7.88%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal amount of bank loan

'

'

'

'

'

'

'

'

'

5,300,000

'

'

'

'

'

'

300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt and capital leases

2,505,000

2,505,000

55,983,000

'

'

'

'

'

'

0

48,081,000

'

48,700,000

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Repurchased Face Amount

'

'

'

'

'

'

'

'

'

43,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Carrying value of the equity component

'

'

'

'

'

'

'

'

'

10,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest Expense, Debt

'

'

'

'

'

'

'

'

'

466,000

1,581,000

1,581,000

'

21,853,000

0

0

'

'

'

'

'

0

2,339,000

'

4,383,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of debt discount

'

576,000

2,536,000

2,324,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Effective interest rate on the notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Borrowing under term facility

100,000,000

100,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, increase, additional borrowings

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, commitment fee amount

612,000

'

213,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Description of variable rate basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'0.0225

'

'

'

'

'

'

Basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.00%

1.25%

3.00%

'

'

'

Ratio of consolidated debt to adjusted EBITDA

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

1

'

3.25

'

'

'

4.75

'

'

'

'

'

'

'

'

Ratio of adjusted EBITDA to interest expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

1

1

1

1

1

3

2.75

1.5

2

2.75

3

'

'

'

'

'

'

'

Line of Credit Facility, Limit on Losses

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum tangible net worth required for credit facility

900,000,000

900,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Minimum Adjusted EBITDA

'

100,000,000

'

'

'

50,000,000

75,000,000

100,000,000

110,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ratio of Secured Indebtedness to EBITDA

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

1.25

'

'

'

'

'

'

'

'

'

'

'

'

Minimum Cash Balance Tested Quarterly

'

50,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ratio of Consolidated Debt to Adjusted EBITDA

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of tangible net worth

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

85.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of net income

25.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Interest Rate at Period End

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.75%

2.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of Credit Facility, Amount Outstanding

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of Long-term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

68,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loss on debt extinguishments

'

0

1,036,000

5,526,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gold under collars protection

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

243,750

122,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average call feature of each collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,968

1,968

97,000

'

'

'

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted average put feature of each collar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

968

968

'

'

1,150

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Royalty Expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

57,000,000

74,700,000

'

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%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payment of Royalty on Ounces of Gold

259,069

259,069

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Further Payment Made on Number of Additional Ounces of Gold

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

140,931

'

'

Payments to Acquire Royalty Interests in Mining Properties

'

57,034,000

74,734,000

73,191,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Implicit Interest Rate

'

30.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretion of Royalty Obligation

'

17,641,000

19,139,000

22,230,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining Minimum Obligation Under Royalty Agreements

51,200,000

51,200,000

61,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expensed Interest

'

41,303,000

26,169,000

34,774,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capitalized interest

'

($2,694,000)

($2,663,000)

($2,175,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Supplemental_Guarantor_Informa2

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

Supplemental_Guarantor_Informa3

Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Financial Statements, Captions [Line Items]	'	'	'
Net Cash Provided by (Used in) Operating Activities	$113,467	$271,634	$416,173
Payments to Acquire Investments	-8,052	-12,959	-49,501
Payments for (Proceeds from) Investments	34,796	21,695	6,246
Payments to Acquire Productive Assets	-100,813	-115,641	-119,988
Payments to Acquire Businesses, Net of Cash Acquired	116,898	-29,297	'
Proceeds from Discontinued Operations Sale of Assets and Other	4,478	3,087	2,282
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0	0
Net Cash Provided by (Used in) Investing Activities	-186,489	-133,115	-160,961
Proceeds from Convertible Debt	300,000	0	27,500
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	-60,628	-97,170	-85,519
Payments to Acquire Royalty Interests in Mining Properties	-57,034	-74,734	-73,191
Payments on gold lease facility	0	0	-13,800
Additions to Restricted Assets	0	4,645	-1,326
Additions to funds held financing	'	'	-1,326
Payments for Repurchase of Common Stock	-27,552	-19,971	0
Proceeds From Repayment Intercompany Borrowings	0	0	0
Proceeds from (Payments for) Other Financing Activities	-514	-861	18
Net Cash Provided by (Used in) Financing Activities	154,272	-188,091	-146,318
Cash and Cash Equivalents, Period Increase (Decrease)	81,250	-49,572	108,894
Cash and Cash Equivalents, at Carrying Value	206,690	125,440	175,012
Coeur Mining, Inc.	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'
Net Cash Provided by (Used in) Operating Activities	-701,653	58,754	132,318
Payments to Acquire Investments	-2,921	-12,913	-49,321
Payments for (Proceeds from) Investments	29,274	21,590	6,138
Payments to Acquire Productive Assets	-3,573	-1,531	-567
Payments to Acquire Businesses, Net of Cash Acquired	-113,214	-29,338	'
Proceeds from Discontinued Operations Sale of Assets and Other	3,266	3,538	1,216
Payments to Acquire Interest in Subsidiaries and Affiliates	642,617	-81,229	-151,313
Net Cash Provided by (Used in) Investing Activities	555,449	-99,883	-193,847
Proceeds from Convertible Debt	300,000	'	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	-52,568	-4,005	-37,983
Payments to Acquire Royalty Interests in Mining Properties	0	0	0
Payments on gold lease facility	'	'	-13,800
Additions to Restricted Assets	'	0	'
Additions to funds held financing	'	'	0
Payments for Repurchase of Common Stock	-27,552	-19,971	'
Proceeds From Repayment Intercompany Borrowings	-22,874	67,082	163,224
Proceeds from (Payments for) Other Financing Activities	-514	-861	18
Net Cash Provided by (Used in) Financing Activities	196,492	42,245	111,459
Cash and Cash Equivalents, Period Increase (Decrease)	50,288	1,116	49,930
Cash and Cash Equivalents, at Carrying Value	137,076	86,788	85,672
Guarantor Subsidiaries	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'
Net Cash Provided by (Used in) Operating Activities	17,456	37,426	38,152
Payments to Acquire Investments	-66	-46	-60
Payments for (Proceeds from) Investments	75	45	48
Payments to Acquire Productive Assets	-50,810	-48,788	-61,288
Payments to Acquire Businesses, Net of Cash Acquired	-3,684	0	'
Proceeds from Discontinued Operations Sale of Assets and Other	444	130	903
Payments to Acquire Interest in Subsidiaries and Affiliates	68	0	0
Net Cash Provided by (Used in) Investing Activities	-53,973	-48,659	-60,397
Proceeds from Convertible Debt	0	'	27,500
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	-3,171	-79,839	-30,493
Payments to Acquire Royalty Interests in Mining Properties	0	0	0
Payments on gold lease facility	'	'	0
Additions to Restricted Assets	'	4,645	'
Additions to funds held financing	'	'	-1,326
Payments for Repurchase of Common Stock	0	0	'
Proceeds From Repayment Intercompany Borrowings	40,279	86,394	26,239
Proceeds from (Payments for) Other Financing Activities	0	0	0
Net Cash Provided by (Used in) Financing Activities	37,108	11,200	21,920
Cash and Cash Equivalents, Period Increase (Decrease)	591	-33	-325
Cash and Cash Equivalents, at Carrying Value	991	400	433
Non-Guarantor Subsidiaries	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'
Net Cash Provided by (Used in) Operating Activities	151,491	256,683	397,016
Payments to Acquire Investments	-5,065	0	-120
Payments for (Proceeds from) Investments	5,447	60	60
Payments to Acquire Productive Assets	-46,430	-65,322	-58,133
Payments to Acquire Businesses, Net of Cash Acquired	0	41	'
Proceeds from Discontinued Operations Sale of Assets and Other	768	-581	163
Payments to Acquire Interest in Subsidiaries and Affiliates	3,488	0	0
Net Cash Provided by (Used in) Investing Activities	-41,792	-65,802	-58,030
Proceeds from Convertible Debt	0	'	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	-4,889	-13,326	-17,043
Payments to Acquire Royalty Interests in Mining Properties	-57,034	-74,734	-73,191
Payments on gold lease facility	'	'	0
Additions to Restricted Assets	'	0	'
Additions to funds held financing	'	'	0
Payments for Repurchase of Common Stock	0	0	'
Proceeds From Repayment Intercompany Borrowings	-17,405	-153,476	-189,463
Proceeds from (Payments for) Other Financing Activities	0	0	0
Net Cash Provided by (Used in) Financing Activities	-79,328	-241,536	-279,697
Cash and Cash Equivalents, Period Increase (Decrease)	30,371	-50,655	59,289
Cash and Cash Equivalents, at Carrying Value	68,623	38,252	88,907
Eliminations	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'
Net Cash Provided by (Used in) Operating Activities	646,173	-81,229	-151,313
Payments to Acquire Investments	0	0	0
Payments for (Proceeds from) Investments	0	0	0
Payments to Acquire Productive Assets	0	0	0
Payments to Acquire Businesses, Net of Cash Acquired	0	0	'
Proceeds from Discontinued Operations Sale of Assets and Other	0	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	-646,173	81,229	151,313
Net Cash Provided by (Used in) Investing Activities	-646,173	81,229	151,313
Proceeds from Convertible Debt	0	'	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	0	0	0
Payments to Acquire Royalty Interests in Mining Properties	0	0	0
Payments on gold lease facility	'	'	0
Additions to Restricted Assets	'	0	'
Additions to funds held financing	'	'	0
Payments for Repurchase of Common Stock	0	0	'
Proceeds From Repayment Intercompany Borrowings	0	0	0
Proceeds from (Payments for) Other Financing Activities	0	0	0
Net Cash Provided by (Used in) Financing Activities	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	0	0	0
Cash and Cash Equivalents, at Carrying Value	$0	$0	$0

Supplemental_Guarantor_Informa4

Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Jan. 29, 2013	Dec. 31, 2012	Dec. 31, 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]	Equity Securities [Member]
																Fair Value, Inputs, Level 1 [Member]
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Debt Instrument, Face Amount	'	'	'	'	'	'	'	'	'	'	'	'	'	$300,000,000	'	'
Cash and cash equivalents	206,690,000	125,440,000	'	'	137,076,000	86,788,000	991,000	400,000	68,623,000	38,252,000	0	0	'	'	'	'
Investments	0	999,000	20,254,000	'	0	999,000	0	0	0	0	0	0	'	'	'	'
Receivables	81,074,000	62,438,000	'	'	530,000	8,520,000	19,982,000	7,643,000	60,562,000	46,275,000	0	0	'	'	'	'
Ore on leach pads	50,495,000	22,991,000	'	'	0	0	50,495,000	22,991,000	0	0	0	0	'	'	'	'
Metal and other inventory	132,023,000	170,670,000	'	'	0	0	35,290,000	45,906,000	96,733,000	124,764,000	0	0	'	'	'	'
Deferred tax assets	35,008,000	2,458,000	'	'	0	0	0	0	35,008,000	2,458,000	0	0	'	'	'	'
Prepaid expenses and other	25,940,000	21,186,000	'	'	4,128,000	3,395,000	5,282,000	5,947,000	16,530,000	11,844,000	0	0	'	'	'	'
Assets, Current	531,230,000	406,182,000	'	'	141,734,000	99,702,000	112,040,000	82,887,000	277,456,000	223,593,000	0	0	'	'	'	'
Property, plant and equipment, net	486,273,000	683,860,000	'	'	5,980,000	4,183,000	143,118,000	208,857,000	337,175,000	470,820,000	0	0	'	'	'	'
Mining properties, net	1,751,501,000	1,991,951,000	'	'	0	0	235,537,000	301,506,000	1,515,964,000	1,690,445,000	0	0	'	'	'	'
Ore on leach pads	31,528,000	21,356,000	'	'	0	0	31,528,000	21,356,000	0	0	0	0	'	'	'	'
Restricted assets	7,014,000	24,970,000	'	'	830,000	18,922,000	50,000	60,000	6,134,000	5,988,000	0	0	'	'	'	'
Marketable securities	14,521,000	27,065,000	'	'	0	27,065,000	14,521,000	0	0	0	0	0	'	'	'	14,521,000
Receivables	36,574,000	48,767,000	'	'	0	0	0	0	36,574,000	48,767,000	0	0	'	'	'	'
Unamortized Debt Issuance Expense	10,812,000	3,713,000	'	'	10,812,000	3,713,000	0	0	0	0	0	0	'	'	'	'
Deferred tax assets	1,189,000	955,000	'	'	955,000	955,000	0	0	234,000	0	0	0	'	'	'	'
Other Assets, Noncurrent	15,336,000	12,582,000	'	'	53,858,000	39,120,000	14,616,000	12,360,000	320,425,000	318,330,000	-373,563,000	-357,228,000	'	'	'	'
Assets	2,885,978,000	3,221,401,000	3,264,441,000	'	1,456,649,000	1,747,094,000	597,625,000	627,026,000	4,072,761,000	4,043,805,000	-3,241,057,000	-3,196,524,000	'	'	'	'
Accounts payable	53,847,000	57,482,000	'	'	1,963,000	2,954,000	15,864,000	17,211,000	36,020,000	37,317,000	0	0	'	'	'	'
Accrued liabilities and other	6,843,000	10,002,000	'	'	1,545,000	1,418,000	950,000	4,014,000	4,348,000	4,570,000	0	0	'	'	'	'
Accrued income taxes	3,119,000	27,108,000	'	'	34,000	257,000	0	0	3,085,000	26,851,000	0	0	'	'	'	'
Accrued payroll and related benefits	18,329,000	21,306,000	'	'	5,152,000	7,477,000	7,062,000	8,158,000	6,115,000	5,671,000	0	0	'	'	'	'
Accrued interest payable	9,975,000	478,000	'	'	9,962,000	463,000	4,000	5,000	1,063,000	1,002,000	-1,054,000	-992,000	'	'	'	'
Debt and capital leases	2,505,000	55,983,000	'	'	0	48,081,000	1,262,000	3,013,000	309,472,000	309,539,000	-308,229,000	-304,650,000	0	'	0	'
Royalty obligations	48,019,000	65,104,000	'	'	0	0	3,934,000	0	44,085,000	65,104,000	0	0	'	'	'	'
Reclamation and mine closure	913,000	668,000	'	'	0	0	0	0	794,000	1,445,000	119,000	-777,000	'	'	'	'
Deferred tax liabilities	1,011,000	121,000	'	'	0	0	0	0	1,011,000	121,000	0	0	'	'	'	'
Liabilities, Current	144,561,000	238,252,000	'	'	18,656,000	60,650,000	29,076,000	32,401,000	405,993,000	451,620,000	-309,164,000	-306,419,000	'	'	'	'
Debt and capital leases	306,130,000	3,460,000	'	'	305,335,000	0	255,000	1,675,000	64,820,000	53,367,000	-64,280,000	-51,582,000	300,000,000	'	0	'
Royalty obligations	65,142,000	141,879,000	'	'	0	0	17,696,000	0	47,446,000	141,879,000	0	0	'	'	'	'
Reclamation and mine closure	57,515,000	34,670,000	'	'	0	0	45,894,000	23,149,000	11,740,000	10,744,000	-119,000	777,000	'	'	'	'
Deferred tax liabilities	556,246,000	577,488,000	'	'	37,095,000	115,425,000	1,618,000	0	517,533,000	462,063,000	0	0	'	'	'	'
Other long-term liabilities	25,817,000	27,372,000	'	'	2,467,000	955,000	544,000	8,086,000	22,806,000	18,331,000	0	0	'	'	'	'
Intercompany Payable Receivable	0	0	'	'	-637,471,000	-628,216,000	427,085,000	390,480,000	210,386,000	237,736,000	0	0	'	'	'	'
Liabilities, Noncurrent	1,010,850,000	784,869,000	'	'	-292,574,000	-511,836,000	493,092,000	423,390,000	874,731,000	924,120,000	-64,399,000	-50,805,000	'	'	'	'
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0	'	'	1,242,480,000	1,553,434,000	46,215,000	0	1,578,799,000	1,285,862,000	-2,867,494,000	-2,839,296,000	'	'	'	'
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 102,843,003 at December 31, 2013 and 90,342,338 at December 31, 2012	1,028,000	903,000	'	'	1,028,000	903,000	250,000	350,000	122,666,000	22,760,000	-122,916,000	-23,110,000	'	'	'	'
Additional paid-in capital	2,781,164,000	2,601,254,000	'	'	2,781,164,000	2,601,254,000	79,712,000	107,734,000	3,258,037,000	2,748,173,000	-3,337,749,000	-2,855,907,000	'	'	'	'
Accumulated deficit	-1,046,719,000	-396,156,000	'	'	-1,046,719,000	-396,156,000	401,000	63,151,000	-588,666,000	-102,868,000	588,265,000	39,717,000	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax	-4,906,000	-7,721,000	'	'	-4,906,000	-7,721,000	-4,906,000	0	0	0	4,906,000	0	'	'	'	'
Debt Instrument, Interest Rate, Stated Percentage	'	'	'	'	'	'	'	'	'	'	'	'	7.88%	7.88%	'	'
Stockholders' Equity Attributable to Parent	1,730,567,000	2,198,280,000	2,136,721,000	2,040,767,000	1,730,567,000	2,198,280,000	75,457,000	171,235,000	2,792,037,000	2,668,065,000	-2,867,494,000	-2,839,300,000	'	'	'	'
Liabilities and Equity	$2,885,978,000	$3,221,401,000	'	'	$1,456,649,000	$1,747,094,000	$597,625,000	$627,026,000	$4,072,761,000	$4,043,805,000	($3,241,057,000)	($3,196,524,000)	'	'	'	'

Commitment_and_Contigencies_De

Commitment and Contigencies (Details Textual) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

15 Months Ended

3 Months Ended

0 Months Ended

1 Months Ended

Dec. 31, 2013

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Oct. 14, 2009

Jan. 21, 2009

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2012

Jul. 07, 1995

Dec. 31, 2013

Jul. 07, 1995

Jul. 07, 1995

Jun. 05, 2012

Feb. 28, 2010

oz

m

Rochester [Member]

Rochester [Member]

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

250,000

'

'

'

'

'

'

'

'

Gold price per ounce for maximum royalty range

'

'

'

'

'

'

'

23.6

'

'

'

'

475

'

'

'

'

Royalty expenses

'

'

'

'

'

'

'

'

-1,500,000

2,200,000

3,500,000

'

'

'

'

'

'

Litigation Settlement, Amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3,500,000

Number of defendants

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5

'

Maximum Height for Temporary Restriction on Mining

'

'

'

'

'

4,400

'

'

'

'

'

'

'

'

'

'

'

One-Time Cash Payment for Mining Claim Settlement

'

10,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

NSR royalty percentage

'

3.40%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

NSR royalty maximum amount

'

39,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) Related to Litigation Settlement

'

$32,000,000

($32,046,000)

$0

$0

'

'

'

'

'

'

'

'

'

'

'

'

Additional Commitment and Contingencies (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of labor agreements in South America

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of labor force covered by collective bargaining agreements

10.40%

'

10.40%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

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

'

'

'

'

'

'

'

'

'

'

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Non-cash financing and investing activities:	'		'		'
Capital expenditures	$1,183	[1]	$3,402	[1]	$2,936	[1]
Capital lease obligations	0		1,857		4,510
Non-cash capitalized interest	2,694		845		681
Non-cash acquisitions and related deferred taxes	317,826		64,133		0
Other cash flow information:	'		'		'
Interest paid	14,139		6,092		11,033
Capitalized interest	2,694		2,663		2,175
Income taxes paid	$26,585		$54,680		$44,396
[1]	Accrued capital expenditures are recognized in the consolidated statements of cash flows in the period in which they are paid.

Summary_of_Quarterly_Financial2

Summary of Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Summary of quarterly results of operations	'	'	'	'	'	'	'	'	'	'	'
Sales of metal	$168,847	$200,825	$204,525	$171,797	$205,929	$230,593	$254,406	$204,564	$745,994	$895,492	$1,021,200
NET INCOME (LOSS)	-581,528	-46,265	-35,040	12,270	37,550	-15,821	22,973	3,975	-650,563	48,677	93,499
Amortization	63,916	60,874	57,653	50,436	52,397	52,844	61,024	52,592	232,879	218,857	224,500
Production costs	100,227	131,728	142,924	88,784	106,473	124,365	131,182	92,542	463,663	454,562	419,547
Exploration	5,440	3,305	6,774	6,841	6,441	6,957	6,305	6,567	22,360	26,270	19,128
Other operating expenses	789,094	20,195	48,131	14,831	5,883	11,836	13,680	8,664	'	'	'
Cash provided by operating activities	10,391	26,804	63,338	12,934	61,694	79,735	113,203	17,002	113,467	271,634	416,173
Capital expenditures	$28,059	$32,726	$27,201	$12,827	$21,784	$29,972	$32,238	$31,647	$100,813	$115,641	$119,988
Basic income per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.05
Diluted income per share:	'	'	'	'	'	'	'	'	'	'	'
Net income (loss)	($5.77)	($0.46)	($0.35)	$0.14	$0.42	($0.18)	$0.26	$0.04	($6.65)	$0.54	$1.04