Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Loss on debt extinguishments	$ (9,173)	$ 0
Revenue	202,117	173,167
NET INCOME (LOSS)	2,060	(11,900)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	2,060	$ (11,900)
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Revenue	0
Gross Profit	(153)
NET INCOME (LOSS)	2,060
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	2,060
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue	121,770
Gross Profit	27,971
NET INCOME (LOSS)	12,223
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ 12,223