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Derivative Financial Instruments (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Fair value adjustments, net | $ 3,618 us-gaap_GainLossOnDerivativeInstrumentsNetPretax | $ 82,768 us-gaap_GainLossOnDerivativeInstrumentsNetPretax | $ (23,487)us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Mark-to-market gains or losses on derivatives | (158)cde_Marktomarketgainsorlossesonderivatives | 80,928 cde_Marktomarketgainsorlossesonderivatives | (23,426)cde_Marktomarketgainsorlossesonderivatives
Concentrate Sales Contracts [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Unrealized Gain (Loss) on Derivatives and Commodity Contracts | (123)us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts / us-gaap_DerivativeInstrumentRiskAxis = cde_ConcentrateSalesContractsMember | (1,995)us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts / us-gaap_DerivativeInstrumentRiskAxis = cde_ConcentrateSalesContractsMember | 1,682 us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts / us-gaap_DerivativeInstrumentRiskAxis = cde_ConcentrateSalesContractsMember
Forward foreign exchange contract [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Costs applicable to sales | 924 cde_ProductionCostsApplicableToSales / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember | 589 cde_ProductionCostsApplicableToSales / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember | 1,621 cde_ProductionCostsApplicableToSales / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember
Fair value adjustments, net | (16)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember | (985)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember | 3,264 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember
Palmarejo gold production royalty [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Fair value adjustments, net | (2,001)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = cde_PalmarejoGoldProductionRoyaltyMember | 76,200 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = cde_PalmarejoGoldProductionRoyaltyMember | (31,053)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = cde_PalmarejoGoldProductionRoyaltyMember
Silver and gold options [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Fair value adjustments, net | $ 1,058 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember | $ 7,119 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember | $ 4,302 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember

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- Definition Mark-to-market gains or losses on derivatives + References No definition available. + Details
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- Definition Production costs applicable to sales. + References No definition available. + Details
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- Details
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- Definition Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5618551-113959 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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