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Mining Properties (Details Textual) (USD $)
12 Months Ended
Dec. 31, 2014
oz
Property, Plant and Equipment [Line Items]  
Cumulative Ounces of Silver Received by the Subsidiary 5,400,000cde_CumulativeOuncesOfSilverReceivedBySubsidiary
Current Ore Reserve payable Ounces Based on Current Metallurgical Recovery and Current Smelter Contract Terms 1,700,000cde_CurrentOreReservePayableOuncesBasedOnCurrentMetallurgicalRecoveryAndCurrentSmelterContractTerms
McEwen Mining Inc, El Gallo, Magistral Mine [Member]  
Property, Plant and Equipment [Line Items]  
Net Smelter Return Percentage Paid 3.50%cde_NetSmelterReturnPercentagePaid
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cde_McEwenMiningIncElGalloMagistralMineMember
Dynasty Metals and Mining, Inc Zaruma Mine [Member]  
Property, Plant and Equipment [Line Items]  
Net Smelter Return Percentage Paid 1.50%cde_NetSmelterReturnPercentagePaid
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cde_DynastyMetalsandMiningIncZarumaMineMember
Cerro Bayo Mine [Member]  
Property, Plant and Equipment [Line Items]  
Net Smelter Return Percentage Paid 2.00%cde_NetSmelterReturnPercentagePaid
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= cde_CerroBayoMineMember
New Zealand [Members]  
Property, Plant and Equipment [Line Items]  
Net Smelter Return Percentage Paid 2.50%cde_NetSmelterReturnPercentagePaid
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= country_NZ
Due from Joint Ventures 0.80us-gaap_DueFromJointVentures
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= country_NZ