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Fair Value Measurements (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on derivative instruments | $ (4,884)us-gaap_GainLossOnDerivativeInstrumentsNetPretax | $ (11,436)us-gaap_GainLossOnDerivativeInstrumentsNetPretax
Embedded Derivative Financial Instruments [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on derivative instruments | (1,545)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember | (10,237)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_EmbeddedDerivativeFinancialInstrumentsMember
Rochester Royalty Obligation [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on derivative instruments | (2,292)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = cde_RochesterRoyaltyObligationMember | (673)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = cde_RochesterRoyaltyObligationMember
Silver and gold options [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on derivative instruments | (1,046)us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember |
Unrealized Gain (Loss) on Derivatives | 200 us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember | (1,494)us-gaap_UnrealizedGainLossOnDerivatives / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CommodityOptionMember
Foreign Exchange Contract [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Gain (loss) on derivative instruments | $ 0 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember | $ 968 us-gaap_GainLossOnDerivativeInstrumentsNetPretax / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember

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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=56946850&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 derivative instruments, including options, swaps, futures, and forward 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=56944662&loc=d3e3602-108585 + Details
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