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

The (gain) loss recorded for the remaining operating lease liability remeasured after a lease modification.

No definition available.

Name:	cde_GainLossonModificationofLease
Namespace Prefix:	cde_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration