Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Condensed Financial Statements, Captions [Line Items]
Loss on debt extinguishments	$ 0			$ 0			$ (9,173)	$ 0
Revenue	207,969			229,728			624,944	557,144
NET INCOME (LOSS)	(54,768)	$ 32,146	$ 2,060	26,856	$ (1,209)	$ (11,900)	(20,562)	13,747
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ (54,768)			$ 26,856			(20,562)	$ 13,747
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Revenue							0
Gross Profit							(507)
NET INCOME (LOSS)							(20,560)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent							(20,560)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Revenue							384,918
Gross Profit							62,007
NET INCOME (LOSS)							12,074
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent							$ 12,074