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Retirement Savings Plan (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Postemployment Benefits [Abstract] |  |  |
Percentage of employee compensation plus matching contribution | 100.00%cde_PercentageOfEmployeeCompensationPlusMatchingContribution |  |
Percentage of maximum limit for employees to contribute their cash compensation | 75.00%cde_PercentageOfMaximumLimitForEmployeesToContributeTheirCashCompensationUnderPlan |  |
Percentage of employee contribution | 4.00%cde_PercentageOfEmployeeContribution |  |
Total plan expenses | $ 2.6 us-gaap_DefinedContributionPlanCostRecognized | $ 4.1 us-gaap_DefinedContributionPlanCostRecognized | $ 4.1 us-gaap_DefinedContributionPlanCostRecognized

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- Definition Percentage of employee compensation plus matching contribution. + References No definition available. + Details
Name: | cde_PercentageOfEmployeeCompensationPlusMatchingContribution
Namespace Prefix: | cde_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of employee contribution. + References No definition available. + Details
Name: | cde_PercentageOfEmployeeContribution
Namespace Prefix: | cde_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Maximum Limit For Employees To Contribute Their Cash Compensation Under Plan. + References No definition available. + Details
Name: | cde_PercentageOfMaximumLimitForEmployeesToContributeTheirCashCompensationUnderPlan
Namespace Prefix: | cde_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_PostemploymentBenefitsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration