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Leases - Leases - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Leases [Abstract] |  |
(Gain) Loss on Modification of Lease | $ 4,051 | $ 0

X
- Definition The (gain) loss recorded for the remaining operating lease liability remeasured after a lease modification. + References No definition available. + Details
Name: | cde_GainLossonModificationofLease
Namespace Prefix: | cde_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration