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Income and Mining Taxes (Details 2) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Income and mining tax (expense) benefit | $ 459,244 us-gaap_IncomeTaxExpenseBenefit | $ 158,116 us-gaap_IncomeTaxExpenseBenefit | $ (70,807)us-gaap_IncomeTaxExpenseBenefit
United States - Alternative minimum tax [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Federal tax expense (benefit) | 904 us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesAlternativeMinimumTaxMember | 4 us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesAlternativeMinimumTaxMember | (257)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesAlternativeMinimumTaxMember
United States - State Mining Taxes [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Federal tax expense (benefit) | (879)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesStateMiningTaxesMember | (714)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesStateMiningTaxesMember | (2,195)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesStateMiningTaxesMember
United States - Foreign Withholding [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Federal tax expense (benefit) | (6,250)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesForeignWithholdingMember | 397 us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesForeignWithholdingMember | (736)us-gaap_CurrentFederalTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = cde_UnitedStatesForeignWithholdingMember
Argentina [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Foreign tax expense (benefit) | (71)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR | (137)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR | 976 us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred foreign (expense) benefit | 24,478 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR | 8,062 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR | 0 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AR
Australia [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Foreign tax expense (benefit) | 0 us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU | (914)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU | (1,760)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred foreign (expense) benefit | (401)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU | (2)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU | (223)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_AU
Mexico [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Foreign tax expense (benefit) | (1,124)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX | (9,046)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX | (7,814)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred foreign (expense) benefit | 417,068 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX | 94,851 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX | (10,579)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_MX
Bolivia [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Foreign tax expense (benefit) | (4,008)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO | (6,716)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO | (43,546)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred foreign (expense) benefit | 22,122 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO | (4,222)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO | (1,087)us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_BO
Canada [Member] |  |  |
Current Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Foreign tax expense (benefit) | (145)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA | (1,936)us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA | 0 us-gaap_CurrentForeignTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred foreign (expense) benefit | 1,807 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA | 0 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA | 0 us-gaap_DeferredForeignIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_CA
United States [Member] |  |  |
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] |  |  |
Deferred federal (expense) benefit | $ 5,743 us-gaap_DeferredFederalIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_US | $ 78,489 us-gaap_DeferredFederalIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_US | $ (3,586)us-gaap_DeferredFederalIncomeTaxExpenseBenefit / us-gaap_IncomeTaxAuthorityAxis = country_US

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