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Mining Properties (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Mining Properties |  |
Operational mining properties: | $ 557,799 cde_OperationalMiningPropertiesGross | $ 641,305 cde_OperationalMiningPropertiesGross
Accumulated depletion | (368,410)cde_OperationalMiningPropertiesAccumulatedDepletion | (315,541)cde_OperationalMiningPropertiesAccumulatedDepletion
Operational mining properties, net | 189,389 cde_OperationalMiningPropertiesNet | 325,764 cde_OperationalMiningPropertiesNet
Mineral interest | 679,429 cde_MineralInterest | 1,753,129 cde_MineralInterest
Accumulated depletion | (367,626)cde_MineralInterestAccumulatedDepletion | (327,392)cde_MineralInterestAccumulatedDepletion
Mineral interest, net | 311,803 cde_MineralInterestNet | 1,425,737 cde_MineralInterestNet
Total mining properties | 501,192 cde_MiningProperties | 1,751,501 cde_MiningProperties
Palmarejo [Member] |  |
Mining Properties |  |
Operational mining properties: | 137,821 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 151,845 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Accumulated depletion | (121,906)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | (110,143)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Operational mining properties, net | 15,915 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 41,702 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Mineral interest | 521,349 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 1,146,572 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Accumulated depletion | (332,032)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | (300,187)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Mineral interest, net | 189,317 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 846,385 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
Total mining properties | 205,232 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember | 888,087 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_PalmarejoMember
San Bartolome [Member] |  |
Mining Properties |  |
Operational mining properties: | 49,305 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 70,761 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Accumulated depletion | (26,106)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | (22,236)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Operational mining properties, net | 23,199 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 48,525 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Mineral interest | 17,560 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 26,643 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Accumulated depletion | (10,143)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | (8,759)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Mineral interest, net | 7,417 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 17,884 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Total mining properties | 30,616 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember | 66,409 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_SanBartolomeMember
Kensington [Member] |  |
Mining Properties |  |
Operational mining properties: | 217,138 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 268,351 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Accumulated depletion | (106,865)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | (80,032)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Operational mining properties, net | 110,273 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 188,319 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 | 110,273 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember | 188,319 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_KensingtonMember
Rochester [Member] |  |
Mining Properties |  |
Operational mining properties: | 153,535 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 150,348 cde_OperationalMiningPropertiesGross / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Accumulated depletion | (113,533)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | (103,130)cde_OperationalMiningPropertiesAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
Operational mining properties, net | 40,002 cde_OperationalMiningPropertiesNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 47,218 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 | 40,002 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember | 47,218 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_RochesterMember
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 | 49,059 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 408,352 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 | 49,059 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 408,352 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember
Total mining properties | 49,059 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_EndeavorMember | 408,352 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 | 93,429 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 | 93,429 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember
Total mining properties | 10,000 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_JoaquinProjectArgentinaMember | 93,429 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 | 78,133 cde_MineralInterest / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Accumulated depletion | (25,451)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | (18,446)cde_MineralInterestAccumulatedDepletion / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Mineral interest, net | 56,010 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | 59,687 cde_MineralInterestNet / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember
Total mining properties | $ 56,010 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember | $ 59,687 cde_MiningProperties / us-gaap_PropertyPlantAndEquipmentByTypeAxis = cde_OtherMiningPropertiesMember

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- Definition Mineral interest. + 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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- Definition Mineral interest, accumulated depletion. + References No definition available. + Details
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Namespace Prefix: | cde_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Mineral interest, net. + 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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- 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
Name: | cde_MiningPropertyAbstract
Namespace Prefix: | cde_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Operational Mining Properties Accumulated Depletion. + References No definition available. + Details
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Namespace Prefix: | cde_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operational 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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- Definition Operational mining properties, net. + 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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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cde_JoaquinProjectArgentinaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cde_KensingtonMember
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
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cde_PalmarejoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cde_RochesterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=cde_SanBartolomeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |