$MUX
McEwen Mining Inc. Stock $mux

$mux Overview Financials Valuation SEC Filings Company Website

2011 Q4 Form 10-K Financial Statement

#000104746913002450 Filed on March 11, 2013

Income Statement

Concept	2011 Q4	2011 Q1	2010
Revenue	$0.00	$0.00	$0.00
YoY Change
Cost Of Revenue	$0.00
YoY Change
Gross Profit	$0.00
YoY Change
Gross Profit Margin
Selling, General & Admin	$3.720M	$2.330M	$9.800M
YoY Change	202.44%	-22.85%	8.89%
% of Gross Profit
Research & Development	$10.33M	$6.910M	$19.20M
YoY Change	70.18%	64.13%	134.15%
% of Gross Profit
Depreciation & Amortization	$140.0K	$120.0K	$454.0K
YoY Change	27.27%	-7.69%	-27.36%
% of Gross Profit
Operating Expenses	$14.31M	$9.490M	$30.00M
YoY Change	87.06%	27.73%	60.43%
Operating Profit	-$14.31M	-$9.477M	-$35.78M
YoY Change			0.07%
Interest Expense	-$420.0K	$740.0K	$700.0K
YoY Change	-244.83%	34.55%	-58.82%
% of Operating Profit
Other Income/Expense, Net		$743.0K	$694.0K
YoY Change			-58.81%
Pretax Income	-$16.48M	-$8.734M	-$35.09M
YoY Change	124.52%	26.95%	2.98%
Income Tax	-$180.0K	$0.00	-$1.998M
% Of Pretax Income
Net Earnings	-$16.30M	-$8.730M	-$33.10M
YoY Change	122.07%	26.89%	19.49%
Net Earnings / Revenue
Basic Earnings Per Share			$0.25
Diluted Earnings Per Share	-$99.75K	-$64.70K	-$259.2K
COMMON SHARES
Basic Shares Outstanding	136.5M shares	128.9M shares	132.6M shares
Diluted Shares Outstanding		128.9M shares	122.0M shares

Balance Sheet

Concept	2011 Q4	2011 Q1	2010
SHORT-TERM ASSETS
Cash & Short-Term Investments	$41.60M	$113.3M	$16.00M
YoY Change	160.0%	210.41%	-63.13%
Cash & Equivalents	$13.42M	$75.04M	$6.800M
Short-Term Investments	$28.20M	$38.30M	$9.100M
Other Short-Term Assets	$3.122M
YoY Change	147.97%
Inventory	$139.0K
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$47.88M	$115.7M	$17.20M
YoY Change	178.03%	206.9%	-61.26%
LONG-TERM ASSETS
Property, Plant & Equipment	$11.77M	$240.3M	$239.5M
YoY Change	168.09%	-1.31%	-1.32%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$0.00
YoY Change
Other Assets	$56.00K	$4.900M	$4.900M
YoY Change	-31.71%	0.0%	0.0%
Total Long-Term Assets	$262.5M	$245.2M	$244.4M
YoY Change	7.39%	-1.29%	-1.29%
TOTAL ASSETS
Total Short-Term Assets	$47.88M	$115.7M	$17.20M
Total Long-Term Assets	$262.5M	$245.2M	$244.4M
Total Assets	$310.4M	$360.9M	$261.6M
YoY Change	18.63%	26.14%	-10.41%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.600M	$3.500M	$2.700M
YoY Change	107.41%	105.88%	125.0%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$6.124M	$4.500M	$3.700M
YoY Change	66.41%	87.5%	105.56%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$400.0K	$6.200M	$6.100M
YoY Change	0.0%	-3.13%	-3.17%
Total Long-Term Liabilities	$400.0K	$6.200M	$6.100M
YoY Change	0.0%	-3.13%	-3.17%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.124M	$4.500M	$3.700M
Total Long-Term Liabilities	$400.0K	$6.200M	$6.100M
Total Liabilities	$91.05M	$89.30M	$88.30M
YoY Change	3.06%	-0.11%	-0.56%
SHAREHOLDERS EQUITY
Retained Earnings	-$393.2M
YoY Change	18.67%
Common Stock	$613.8M
YoY Change	21.7%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$219.3M	$271.6M	$173.3M
YoY Change
Total Liabilities & Shareholders Equity	$310.4M	$360.9M	$261.6M
YoY Change	18.63%	26.14%	-10.41%

Cashflow Statement

Concept	2011 Q4	2011 Q1	2010
OPERATING ACTIVITIES
Net Income	-$16.30M	-$8.730M	-$33.10M
YoY Change	122.07%	26.89%	19.49%
Depreciation, Depletion And Amortization	$140.0K	$120.0K	$454.0K
YoY Change	27.27%	-7.69%	-27.36%
Cash From Operating Activities	-$31.12M	$130.0K	$570.0K
YoY Change	-19550.0%	0.0%	-24.0%
INVESTING ACTIVITIES
Capital Expenditures	-$420.0K	$396.0K	$1.978M
YoY Change	-74.55%	-142.58%	508.62%
Acquisitions
YoY Change
Other Investing Activities	$18.59M	-$27.97M	$7.160M
YoY Change	-711.51%	3152.33%	-148.28%
Cash From Investing Activities	$18.17M	-$28.60M	$3.880M
YoY Change	-487.42%	1506.74%	-125.59%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net		$105.4M
YoY Change		1053900.0%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	0.000	105.7M	810.0K
YoY Change	-100.0%	1056900.0%	-98.26%
NET CHANGE
Cash From Operating Activities	-31.12M	130.0K	570.0K
Cash From Investing Activities	18.17M	-28.60M	3.880M
Cash From Financing Activities	0.000	105.7M	810.0K
Net Change In Cash	-12.95M	77.23M	5.260M
YoY Change	223.75%	-4809.15%	-83.58%
FREE CASH FLOW
Cash From Operating Activities	-$31.12M	$130.0K	$570.0K
Capital Expenditures	-$420.0K	$396.0K	$1.978M
Free Cash Flow	-$30.70M	-$266.0K	-$1.408M
YoY Change	-1796.13%	-125.09%	-431.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2010Q4	us-gaap	Investment In Physical Commodities InvestmentInPhysicalCommodities	4569000	USD
CY2012Q4	us-gaap	Investment In Physical Commodities InvestmentInPhysicalCommodities	1690000	USD
CY2012	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	23836000	USD
CY2012Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	5183000	USD
CY2012	us-gaap	Payments To Suppliers And Employees PaymentsToSuppliersAndEmployees	87061000	USD
CY2010	us-gaap	Payments To Suppliers And Employees PaymentsToSuppliersAndEmployees	26034000	USD
CY2012	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	100000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	6359000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	6253000	USD
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	6153000	USD
CY2011	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	82000	USD
CY2012	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	447000	USD
CY2011	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-342000	USD
CY2012	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-294000	USD
CY2012Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	130000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	15714000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	14089000	USD
CY2012Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2947000	USD
CY2011Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	2317000	USD
CY2012Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	12767000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1033000	USD
CY2012Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	252900000	USD
CY2011Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	140500000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	41000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	80975000	USD
CY2012	us-gaap	Revenues Revenues	26801000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7035000	USD
CY2010	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	5397000	USD
CY2011	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	3893000	USD
CY2011	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	3464000	USD
CY2010	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	4358000	USD
CY2011	us-gaap	Exploration Expense Mining ExplorationExpenseMining	42983000	USD
CY2010	us-gaap	Exploration Expense Mining ExplorationExpenseMining	19210000	USD
CY2011	us-gaap	Other Construction Costs OtherConstructionCosts	1745000	USD
CY2011	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	524000	USD
CY2010	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	515000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	577000	USD
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	454000	USD
CY2010	us-gaap	Asset Impairment Charges AssetImpairmentCharges	5878000	USD
CY2012	us-gaap	Costs And Expenses CostsAndExpenses	118206000	USD
CY2011	us-gaap	Costs And Expenses CostsAndExpenses	60185000	USD
CY2010	us-gaap	Costs And Expenses CostsAndExpenses	35783000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	-60185000	USD
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	-35783000	USD
CY2011	us-gaap	Investment Income Interest InvestmentIncomeInterest	94000	USD
CY2010	us-gaap	Investment Income Interest InvestmentIncomeInterest	112000	USD
CY2011	mux	Interest Expenses InterestExpenses	-108000	USD
CY2010	mux	Interest Expenses InterestExpenses	15000	USD
CY2011	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	2075000	USD
CY2011	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-3394000	USD
CY2011	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	19000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-769000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	597000	USD
CY2011	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-1867000	USD
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	694000	USD
CY2012	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-2493000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-62052000	USD
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-35089000	USD
CY2011	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-180000	USD
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1998000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-66654000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-61872000	USD
CY2010	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-33091000	USD
CY2012	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-5000	USD
CY2011	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-1546000	USD
CY2010	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	542000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-65659000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-63418000	USD
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-32549000	USD
CY2011	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.42
CY2010	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.25
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	147692000	shares
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	132633000	shares
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	70921000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	13416000	USD
CY2011Q4	us-gaap	Short Term Investments ShortTermInvestments	3933000	USD
CY2011Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1480000	USD
CY2011Q4	us-gaap	Investment In Physical Commodities InvestmentInPhysicalCommodities	22810000	USD
CY2011Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	2983000	USD
CY2011Q4	us-gaap	Other Assets Current OtherAssetsCurrent	3122000	USD
CY2011Q4	us-gaap	Assets Current AssetsCurrent	47883000	USD
CY2011Q4	mux	Mineral Property Interests Net MineralPropertyInterestsNet	245454000	USD
CY2011Q4	us-gaap	Restricted Cash And Investments Noncurrent RestrictedCashAndInvestmentsNoncurrent	5190000	USD
CY2011Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	11772000	USD
CY2011Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	56000	USD
CY2011Q4	us-gaap	Assets Assets	310355000	USD
CY2011Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	5612000	USD
CY2011Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	512000	USD
CY2011Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6124000	USD
CY2012Q4	us-gaap	Liabilities Current LiabilitiesCurrent	25195000	USD
CY2011Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	5741000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	78786000	USD
CY2011Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	400000	USD
CY2011Q4	us-gaap	Liabilities Liabilities	91051000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	261346000	USD
CY2011Q4	us-gaap	Common Stock Value CommonStockValue	613831000	USD
CY2011Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-393238000	USD
CY2011Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1289000	USD
CY2011Q4	us-gaap	Stockholders Equity StockholdersEquity	219304000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	889591000	USD
CY2012Q4	mux	Gold Bullion Investments Market Value GoldBullionInvestmentsMarketValue	2062000	USD
CY2011Q4	mux	Gold Bullion Investments Market Value GoldBullionInvestmentsMarketValue	24483000	USD
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2011Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2011Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	136572000	shares
CY2011Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	136572000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	212646000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	212646000	shares
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1595000	USD
CY2010	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	201000	USD
CY2010	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	608000	USD
CY2010	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	199000	USD
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	203226000	USD
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	173280000	USD
CY2011	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	2671000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	105415000	USD
CY2011	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	412000	USD
CY2011	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	361000	USD
CY2011	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	583000	USD
CY2012	mux	Exchangeable Stock Issued During Period Value Acquisitions ExchangeableStockIssuedDuringPeriodValueAcquisitions	664671000	USD
CY2012	mux	Stock Issued During Period Value Stock Options Assumed In Acquisition Of Business StockIssuedDuringPeriodValueStockOptionsAssumedInAcquisitionOfBusiness	3175000	USD
CY2011	us-gaap	Payments To Suppliers And Employees PaymentsToSuppliersAndEmployees	59087000	USD
CY2011	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	94000	USD
CY2010	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	112000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-71506000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-58993000	USD
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-25922000	USD
CY2011	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	-3933000	USD
CY2010	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	12946000	USD
CY2011	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	7973000	USD
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1978000	USD
CY2011	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	51000	USD
CY2010	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	49000	USD
CY2011	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	31299000	USD
CY2010	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1810000	USD
CY2011	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	11739000	USD
CY2011	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	284000	USD
CY2010	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	4023000	USD
CY2011	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	1853000	USD
CY2011	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	413000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	65073000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-40318000	USD
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	3884000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	105415000	USD
CY2011	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	773000	USD
CY2010	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	809000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	64304000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	106188000	USD
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	809000	USD
CY2011	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-279000	USD
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	357000	USD
CY2011	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	6598000	USD
CY2010	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-20872000	USD
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	27690000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6818000	USD
CY2011	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-180000	USD
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1998000	USD
CY2011	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	2671000	USD
CY2010	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1595000	USD
CY2011	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-279000	USD
CY2010	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	357000	USD
CY2011	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-82000	USD
CY2012	us-gaap	Proceeds From Interest Received ProceedsFromInterestReceived	228000	USD
CY2011	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5042000	USD
CY2010	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	292000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	2704000	USD
CY2010	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1403000	USD
CY2012	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2012
CY2012	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2012	dei	Entity Registrant Name EntityRegistrantName	McEwen Mining Inc.
CY2012	dei	Entity Central Index Key EntityCentralIndexKey	0000314203
CY2012	dei	Document Type DocumentType	10-K
CY2012	dei	Document Period End Date DocumentPeriodEndDate	2012-12-31
CY2012	dei	Amendment Flag AmendmentFlag	false
CY2012	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2012	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2012	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2012	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2012	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2013Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	215205891	shares
CY2012Q2	dei	Entity Public Float EntityPublicFloat	602360000	USD
CY2012	us-gaap	Use Of Estimates UseOfEstimates	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'><font size="2"><b>Use of Estimates:</b></font><font size="2">    The Company's consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America. 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 the reported amounts of expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions relate to environmental, reclamation and closure obligations; estimates of fair value for reporting units and asset impairments; valuation allowances for deferred tax assets; reserves for contingencies and litigation; and estimates with respect to assumptions regarding stock-based compensation expense. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Actual results may differ significantly from these estimates.</font></div>
CY2012	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'><font size="2"><b>Concentrations:</b></font><font size="2">    The Company maintains cash in accounts which may, at times, exceed federally insured limits. At December 31, 2012, the Company has bank account balances of approximately $59.7 million in excess of the federally insured limits of $100,000 in Canada. The Company held an insignificant amount of cash in the U.S.</font></div>
CY2012Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	59700000	USD
CY2012Q4	us-gaap	Cash Fdic Insured Amount CashFDICInsuredAmount	100000	USD
CY2012	mux	Period For Determining Current Portion Of Ore Stockpile Inventory PeriodForDeterminingCurrentPortionOfOreStockpileInventory	P12M
CY2012	mux	Period For Classifying Ore Stockpile Inventory As Long Term PeriodForClassifyingOreStockpileInventoryAsLongTerm	P12M
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	409000	USD
CY2012	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	-70000	USD
CY2011	us-gaap	Availableforsale Securities Gross Realized Gain Loss Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedGainLossExcludingOtherThanTemporaryImpairments	19000	USD
CY2012	us-gaap	Availableforsale Securities Transfers To Trading Gains Losses Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesTransfersToTradingGainsLossesExcludingOtherThanTemporaryImpairments	-5000	USD
CY2011	us-gaap	Availableforsale Securities Transfers To Trading Gains Losses Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesTransfersToTradingGainsLossesExcludingOtherThanTemporaryImpairments	-1546000	USD
CY2010Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	4576000	USD
CY2012Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	3000	USD
CY2012Q1	us-gaap	Share Price SharePrice	5.22
CY2012	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	31780000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	44982000	USD
CY2012	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-63156000	USD
CY2011	us-gaap	Business Acquisitions Pro Forma Net Income Loss BusinessAcquisitionsProFormaNetIncomeLoss	-35330000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	9521000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	241000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	91075000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	90477000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	598000	USD
CY2012Q4	mux	Deferred Tax Liabilities Reclamation Obligation DeferredTaxLiabilitiesReclamationObligation	-416000	USD
CY2012Q4	mux	Deferred Tax Liabilities Basis In Tsvlp DeferredTaxLiabilitiesBasisInTSVLP	1014000	USD
CY2012Q4	mux	Deferred Tax Liabilities Acquisition DeferredTaxLiabilitiesAcquisition	229522000	USD
CY2012Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	230120000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	229522000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Alternative Minimum Tax DeferredTaxAssetsTaxCreditCarryforwardsAlternativeMinimumTax	41000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	46211000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	2528000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	5330000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	241000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	54351000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	53578000	USD
CY2011Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	773000	USD
CY2011Q4	mux	Deferred Tax Liabilities Reclamation Obligation DeferredTaxLiabilitiesReclamationObligation	-282000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	41000	USD
CY2011Q4	mux	Deferred Tax Liabilities Basis In Tsvlp DeferredTaxLiabilitiesBasisInTSVLP	1014000	USD
CY2011Q4	mux	Deferred Tax Liabilities Acquisition DeferredTaxLiabilitiesAcquisition	78786000	USD
CY2011Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	79559000	USD
CY2011Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	78786000	USD
CY2012	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	36900000	USD
CY2012Q4	mux	Deferred Tax Liabilities Acquisition Of Fixed Assets DeferredTaxLiabilitiesAcquisitionOfFixedAssets	400000	USD
CY2012	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-31925000	USD
CY2012	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	781000	USD
CY2012	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	3245000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-1869000	USD
CY2012	mux	Income Tax Reconciliation Imputed Interest IncomeTaxReconciliationImputedInterest	135000	USD
CY2012	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-3259000	USD
CY2012	mux	Income Tax Reconciliation Net Operating Loss Expired IncomeTaxReconciliationNetOperatingLossExpired	-2696000	USD
CY2012	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	36899000	USD
CY2012	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	-27244000	USD
CY2011	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-21098000	USD
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.76	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.90	pure
CY2011	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-180000	USD
CY2011	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	-8074000	USD
CY2011	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1342000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	-24000	USD
CY2011	mux	Income Tax Reconciliation Imputed Interest IncomeTaxReconciliationImputedInterest	119000	USD
CY2011	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	8869000	USD
CY2011	mux	Income Tax Reconciliation Net Operating Loss Expired IncomeTaxReconciliationNetOperatingLossExpired	2862000	USD
CY2011	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	16035000	USD
CY2011	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	-180000	USD
CY2010	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-11895000	USD
CY2010	us-gaap	Income Tax Reconciliation Prior Year Income Taxes IncomeTaxReconciliationPriorYearIncomeTaxes	56000	USD
CY2010	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	853000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	2000	USD
CY2010	mux	Income Tax Reconciliation Imputed Interest IncomeTaxReconciliationImputedInterest	104000	USD
CY2010	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	1621000	USD
CY2010	mux	Income Tax Reconciliation Net Operating Loss Expired IncomeTaxReconciliationNetOperatingLossExpired	746000	USD
CY2010	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	6376000	USD
CY2010	us-gaap	Income Tax Expense Benefit Continuing Operations IncomeTaxExpenseBenefitContinuingOperations	-1998000	USD
CY2012Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2011Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	17250000	shares
CY2011Q1	us-gaap	Share Price SharePrice	6.50
CY2011Q1	mux	Proceeds From Issuance Of Common Stock Gross ProceedsFromIssuanceOfCommonStockGross	112100000	USD
CY2011Q1	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	105400000	USD
CY2012	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	445000	shares
CY2011	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	163000	shares
CY2012	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	3885000	USD
CY2012	us-gaap	Conversion Of Stock Shares Converted1 ConversionOfStockSharesConverted1	51800000	shares
CY2012Q4	us-gaap	Common Stock Other Shares Outstanding CommonStockOtherSharesOutstanding	83400000	shares
CY2005Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	5000000	shares
CY2006Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized	4000000	shares
CY2006Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	9000000	shares
CY2006Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Maximum Number Of Shares Per Employee ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesPerEmployee	1000000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0097	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0174	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.0218	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0233	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0297	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.87	pure
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	1.00	pure
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.94	pure
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y7M6D
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y4M24D
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.80
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	4.86
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	2.84
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	3400000	USD
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2700000	USD
CY2010	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1600000	USD
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3561000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3870000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3086000	shares
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2632000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	300000	shares
CY2011	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	947000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	726000	shares
CY2010	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	109000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	128000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	100000	shares
CY2012	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	36000	shares
CY2010	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	63000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	2503000	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.47
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.24
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	2.02
CY2009Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	2.13
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	5.80
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	7.10
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	2.51
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.84
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	1.86
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	6.27
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	8.30
CY2012	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	7.96
CY2010	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	2.71
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	2.47
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y7M6D
CY2010	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y1M6D
CY2012	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	4887000	USD
CY2012Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	4619000	USD
CY2012Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	1100000	USD
CY2012	mux	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Number EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptionsNumber	1100000	shares
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	864000	USD
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	225000	USD
CY2012	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y2M12D
CY2012	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	261223000	shares
CY2011	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	147692000	shares
CY2010	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	132633000	shares
CY2012	us-gaap	Revenue Mineral Sales RevenueMineralSales	5966000	USD
CY2012	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	700000	USD
CY2011	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	100000	USD
CY2010	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	100000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	3971000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	3861000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4883000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	521000	USD
CY2012Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	522000	USD
CY2012Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-17351000	USD
CY2012Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-20364000	USD
CY2012Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-2654000	USD
CY2012Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-26285000	USD
CY2011Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8734000	USD
CY2011Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-13154000	USD
CY2011Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-23680000	USD
CY2011Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-16304000	USD
CY2010Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-6870000	USD
CY2010Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-10703000	USD
CY2010Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-8170000	USD
CY2010Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-7348000	USD
CY2012	us-gaap	Other Construction Costs OtherConstructionCosts	14260000	USD
CY2012	us-gaap	Exploration Expense Mining ExplorationExpenseMining	47179000	USD
CY2012	us-gaap	Construction And Development Costs ConstructionAndDevelopmentCosts	8507000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	-91405000	USD
CY2012Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	273948000	USD
CY2012Q4	mux	Mineral Property Interests Net MineralPropertyInterestsNet	767067000	USD
CY2012Q4	mux	Deferred Tax Liabilities Acquisition Of Mineral Properties DeferredTaxLiabilitiesAcquisitionOfMineralProperties	229100000	USD
CY2012	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.26
CY2012	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	47000	USD
CY2012Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	13500000	shares
CY2011	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.52
CY2011	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y7M6D
CY2012	us-gaap	Proceeds From Customers ProceedsFromCustomers	5557000	USD
CY2012	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	9770000	USD
CY2013Q1	mux	Exchangeable Common Stock Shares Outstanding Dei ExchangeableCommonStockSharesOutstandingDEI	81880468	shares
CY2012	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3405000	USD
CY2012	us-gaap	Nature Of Operations NatureOfOperations	<div style='font-size:10.0pt;FONT-FAMILY: Times New Roman;'> <p style="FONT-FAMILY: times"><font size="2"><b>NOTE 1 THE COMPANY</b></font></p> <p style="FONT-FAMILY: times"><font size="2">        McEwen Mining Inc. (the "Company" or "McEwen Mining") was organized under the laws of the State of Colorado on July 24, 1979 and formerly operated under the name of US Gold Corporation. On January 24, 2012, the Company changed its name to McEwen Mining Inc. after the completion of the acquisition, by way of a statutory plan of arrangement under the laws of the Province of Alberta, Canada, of Minera Andes Inc. ("Minera Andes"). McEwen Mining is a mining and exploration company focused on precious metals in Argentina, Mexico and the United States.</font></p> <p style="FONT-FAMILY: times"><font size="2">        As a result of the acquisition of Minera Andes, the Company acquired a 49% interest in Minera Santa Cruz S.A. ("MSC"), owner of the producing San José Silver-Gold Mine in Santa Cruz, Argentina; a 100% interest in the Los Azules Copper Deposit in San Juan, Argentina, and a large portfolio of exploration properties in Santa Cruz, Argentina. The San José Mine is operated by the majority owner of the joint venture, Hochschild Mining plc ("Hochschild").</font></p> <p style="FONT-FAMILY: times"><font size="2">        The Company began production at Phase 1 of the El Gallo Complex in Mexico in September 2012, and for the year ended December 31, 2012, produced a total of 6,863 oz of gold and 4,492 oz of silver.</font></p></div>
CY2012	mux	Mineral Property Interest Increase MineralPropertyInterestIncrease	521600000	USD
CY2011	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	100000	USD
CY2012	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	36337000	USD
CY2011Q1	mux	Stock Issued During Period Shares Issued To Underwriters Over Allotment Option StockIssuedDuringPeriodSharesIssuedToUnderwritersOverAllotmentOption	2250000	shares
CY2005Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	3500000	shares
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	261223000	shares
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.25
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.26
CY2011	us-gaap	Stock Issued During Period Shares Purchase Of Assets StockIssuedDuringPeriodSharesPurchaseOfAssets	84000	shares
CY2012	us-gaap	Stock Issued During Period Shares Purchase Of Assets StockIssuedDuringPeriodSharesPurchaseOfAssets	83000	shares
CY2011	us-gaap	Payments To Acquire Mining Assets PaymentsToAcquireMiningAssets	10059000	USD
CY2010	us-gaap	Payments To Acquire Mining Assets PaymentsToAcquireMiningAssets	1300000	USD
CY2012	us-gaap	Payments To Acquire Mining Assets PaymentsToAcquireMiningAssets	712000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	1993000	USD
CY2012Q2	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	2000000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	20835000	USD
CY2011	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	36000	USD
CY2010	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	29000	USD
CY2012	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	3933000	USD
CY2012	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1879000	USD
CY2012	us-gaap	Availableforsale Securities Gross Realized Losses Excluding Other Than Temporary Impairments AvailableforsaleSecuritiesGrossRealizedLossesExcludingOtherThanTemporaryImpairments	993000	USD
CY2012	mux	Exchangeable Stock Issued During Period Shares Acquisitions ExchangeableStockIssuedDuringPeriodSharesAcquisitions	7800000	shares
CY2012	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	7207000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	16841000	USD
CY2012	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	1513000	USD
CY2012	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1110000	USD
CY2012	us-gaap	Asset Impairment Charges AssetImpairmentCharges	18468000	USD
CY2012	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3143000	USD
CY2012	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	-6000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	60419000	USD
CY2012	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents Continuing Operations EffectOfExchangeRateOnCashAndCashEquivalentsContinuingOperations	-366000	USD
CY2012	us-gaap	Investment Income Interest InvestmentIncomeInterest	228000	USD
CY2012	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	57505000	USD
CY2012	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	-70000	USD
CY2012	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	1993000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	456000	USD
CY2012	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-27244000	USD
CY2012	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	3405000	USD
CY2012	us-gaap	Foreign Currency Transaction Gain Loss Unrealized ForeignCurrencyTransactionGainLossUnrealized	-366000	USD
CY2012	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2175000	USD
CY2012	us-gaap	Noncash Or Part Noncash Acquisition Other Assets Acquired1 NoncashOrPartNoncashAcquisitionOtherAssetsAcquired1	9363000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	10253000	USD
CY2012	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-93898000	USD
CY2012	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-27244000	USD
CY2012Q4	us-gaap	Value Added Tax Receivable Current ValueAddedTaxReceivableCurrent	9150000	USD
CY2012Q4	us-gaap	Other Assets Current OtherAssetsCurrent	2892000	USD
CY2012Q4	us-gaap	Assets Current AssetsCurrent	91918000	USD
CY2012Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	54000	USD
CY2012Q4	us-gaap	Assets Assets	1150937000	USD
CY2012Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	21235000	USD
CY2012Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	6229000	USD
CY2012Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	229522000	USD
CY2012Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	400000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	1349777000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-459892000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-294000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1150937000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	43047000	USD
CY2012	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	819000	USD
CY2012	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	3066000	USD
CY2012	us-gaap	Stock Issued During Period Value Purchase Of Assets StockIssuedDuringPeriodValuePurchaseOfAssets	391000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment For Sale Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentForSaleOfSecuritiesIncludedInNetIncomeNetOfTax	-993000	USD
CY2012Q4	mux	Inventory Ore On Leach Pads Net Of Reserves InventoryOreOnLeachPadsNetOfReserves	685000	USD
CY2012Q4	us-gaap	Inventory Work In Process Net Of Reserves InventoryWorkInProcessNetOfReserves	3604000	USD
CY2012Q4	mux	Inventory Ore Stockpiles Net Of Reserves InventoryOreStockpilesNetOfReserves	308000	USD
CY2012Q4	mux	Inventory Precious Metals Net Of Reserves InventoryPreciousMetalsNetOfReserves	1322000	USD
CY2012Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	1343000	USD
CY2012Q4	us-gaap	Inventory Net InventoryNet	7262000	USD
CY2011Q4	us-gaap	Inventory Raw Materials And Supplies Net Of Reserves InventoryRawMaterialsAndSuppliesNetOfReserves	139000	USD
CY2011Q4	us-gaap	Inventory Net InventoryNet	139000	USD
CY2012	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	3830000	USD
CY2012	mux	Other Comprehensive Income Loss Reclassification Adjustment Related To Sale Of Securities And Writedown Of Securities Included In Net Income Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentRelatedToSaleOfSecuritiesAndWritedownOfSecuritiesIncludedInNetIncomeNetOfTax	1000000	USD
CY2012	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	19552000	shares
CY2012	mux	Exchangeable Stock Issued During Period Shares New Issues ExchangeableStockIssuedDuringPeriodSharesNewIssues	7800000	shares
CY2012	mux	Exchangeable Stock Issued During Period Shares ExchangeableStockIssuedDuringPeriodShares	135100000	shares
CY2011Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.06
CY2011Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.08
CY2011Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.16
CY2011Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.11
CY2011Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	139560000	shares
CY2011Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	150292000	shares
CY2011Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	150371000	shares
CY2011Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	150399000	shares
CY2010Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.05
CY2010Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.08
CY2010Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.06
CY2010Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.05
CY2010Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	132544000	shares
CY2010Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	132564000	shares
CY2010Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	132642000	shares
CY2010Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	147692000	shares
CY2012	mux	Exchangeable Stock Issued During Period Value New Issues ExchangeableStockIssuedDuringPeriodValueNewIssues	17372000	USD
CY2012	mux	Proceeds From Sale Of Inactive Milling Equipment And Related Assets Nevada Property ProceedsFromSaleOfInactiveMillingEquipmentAndRelatedAssetsNevadaProperty	1700000	USD
CY2012Q4	mux	Percentage Of Discount To Closing Share Price PercentageOfDiscountToClosingSharePrice	0.50	pure
CY2012	mux	Mineral Concessions Number Of Option Agreements Cancelled MineralConcessionsNumberOfOptionAgreementsCancelled	2	item
CY2012Q1	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.07
CY2012Q2	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.07
CY2012Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.01
CY2012Q4	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.10
CY2012Q1	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	244640000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	278655000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	279019000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	274295000	shares
CY2012Q4	us-gaap	Litigation Reserve Current LitigationReserveCurrent	3830000	USD
CY2012	us-gaap	Cost Of Goods Sold CostOfGoodsSold	3861000	USD
CY2012	us-gaap	Income Tax Reconciliation Equity In Earnings Losses Of Unconsolidated Subsidiary IncomeTaxReconciliationEquityInEarningsLossesOfUnconsolidatedSubsidiary	7292000	USD
CY2012	mux	Income Tax Reconciliation Unrealized Foreign Currency Exchange Rate Gain Loss IncomeTaxReconciliationUnrealizedForeignCurrencyExchangeRateGainLoss	-21263000	USD
CY2011	mux	Income Tax Reconciliation Unrealized Foreign Currency Exchange Rate Gain Loss IncomeTaxReconciliationUnrealizedForeignCurrencyExchangeRateGainLoss	-31000	USD
CY2010	mux	Income Tax Reconciliation Unrealized Foreign Currency Exchange Rate Gain Loss IncomeTaxReconciliationUnrealizedForeignCurrencyExchangeRateGainLoss	139000	USD
CY2012Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	297000	USD

Files In Submission

Name	View Source	Status
0001047469-13-002450-index-headers.html	Edgar Link	pending
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0001047469-13-002450.txt	Edgar Link	pending
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mux-20121231.xml	Edgar Link	completed
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mux-20121231_cal.xml	Edgar Link	unprocessable
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mux-20121231_lab.xml	Edgar Link	unprocessable
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$MUX
McEwen Mining Inc. Stock $mux

2011 Q4 Form 10-K Financial Statement

#000104746913002450 Filed on March 11, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MUX McEwen Mining Inc. Stock $mux

2011 Q4 Form 10-K Financial Statement

#000104746913002450 Filed on March 11, 2013

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MUX
McEwen Mining Inc. Stock $mux