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Mining Properties (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Mining Properties |  |
Operational mining properties: | $ 598,579 cde_OperationalMiningPropertiesGross | $ 557,799 cde_OperationalMiningPropertiesGross
Accumulated depletion | (382,467)cde_OperationalMiningPropertiesAccumulatedDepletion | (368,410)cde_OperationalMiningPropertiesAccumulatedDepletion
Operational mining properties, net | 216,112 cde_OperationalMiningPropertiesNet | 189,389 cde_OperationalMiningPropertiesNet
Mineral interest | 731,234 cde_MineralInterest | 679,429 cde_MineralInterest
Accumulated depletion | (374,504)cde_MineralInterestAccumulatedDepletion | (367,626)cde_MineralInterestAccumulatedDepletion
Mineral interest, net | 356,730 cde_MineralInterestNet | 311,803 cde_MineralInterestNet
Total mining properties | 572,842 cde_MiningProperties | 501,192 cde_MiningProperties
Palmarejo [Member] |  |
Mining Properties |  |
Operational mining properties: | 143,012 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 137,821 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Accumulated depletion | (124,306)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | (121,906)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Operational mining properties, net | 18,706 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 15,915 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Mineral interest | 521,349 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 521,349 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Accumulated depletion | (335,791)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | (332,032)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Mineral interest, net | 185,558 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 189,317 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Total mining properties | 204,264 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 205,232 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
San Bartolome [Member] |  |
Mining Properties |  |
Operational mining properties: | 49,379 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 49,305 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Accumulated depletion | (27,411)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | (26,106)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Operational mining properties, net | 21,968 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 23,199 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Mineral interest | 17,560 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 17,560 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Accumulated depletion | (10,435)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | (10,143)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Mineral interest, net | 7,125 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 7,417 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Total mining properties | 29,093 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 30,616 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Kensington [Member] |  |
Mining Properties |  |
Operational mining properties: | 220,957 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 217,138 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Accumulated depletion | (113,005)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | (106,865)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Operational mining properties, net | 107,952 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 110,273 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Mineral interest | 0 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 0 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Accumulated depletion | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Mineral interest, net | 0 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 0 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Total mining properties | 107,952 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 110,273 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Rochester [Member] |  |
Mining Properties |  |
Operational mining properties: | 153,613 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 153,535 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Accumulated depletion | (117,414)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | (113,533)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Operational mining properties, net | 36,199 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 40,002 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Mineral interest | 0 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 0 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Accumulated depletion | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Mineral interest, net | 0 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 0 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Total mining properties | 36,199 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 40,002 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Wharf [Member] |  |
Mining Properties |  |
Operational mining properties: | 31,618 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Accumulated depletion | (331)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Operational mining properties, net | 31,287 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Mineral interest | 51,779 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Accumulated depletion | (676)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Mineral interest, net | 51,103 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Total mining properties | 82,390 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_WharfMember |
Endeavor [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Accumulated depletion | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Operational mining properties, net | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Mineral interest | 49,085 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 49,059 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Accumulated depletion | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Mineral interest, net | 49,085 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 49,059 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Total mining properties | 49,085 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 49,059 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Joaquin Project - Argentina [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Accumulated depletion | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Operational mining properties, net | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Mineral interest | 10,000 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 10,000 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Accumulated depletion | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 0 cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Mineral interest, net | 10,000 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 10,000 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Total mining properties | 10,000 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 10,000 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Other Mining Properties [Member] |  |
Mining Properties |  |
Operational mining properties: | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 0 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Accumulated depletion | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 0 cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Operational mining properties, net | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 0 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Mineral interest | 81,461 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 81,461 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Accumulated depletion | (27,602)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | (25,451)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Mineral interest, net | 53,859 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 56,010 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Total mining properties | $ 53,859 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | $ 56,010 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember

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Data Type: | xbrli:monetaryItemType
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- Definition Mining properties. + References No definition available. + Details
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Namespace Prefix: | cde_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Data Type: | xbrli:stringItemType
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- Definition Operational Mining Properties Accumulated Depletion. + References No definition available. + Details
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- Definition Operational mining properties. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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Period Type: | instant

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- Definition Operational mining properties, net. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Period Type: |