Supplemental Guarantor Information Condensed Consolidated Statements of Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	$ (46,265)	$ (15,821)	$ (69,035)	$ 11,127
Marketable Securities, Unrealized Gain (Loss)	301	6,026	(10,756)	774
Reclassification adjustments for losses included in net income	1,006	605	18,233	605
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1,307	6,631	7,477	1,379
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(44,958)	(9,190)	(61,558)	12,506
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	(46,265)	(15,821)	(69,035)	11,127
Marketable Securities, Unrealized Gain (Loss)	301	6,026	(10,756)	774
Reclassification adjustments for losses included in net income	1,006	605	18,233	605
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	1,307	6,631	7,477	1,379
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(44,958)	(9,190)	(61,558)	12,506
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	(10,970)	1,065	(22,607)	(2,460)
Marketable Securities, Unrealized Gain (Loss)	0	0	0	0
Reclassification adjustments for losses included in net income	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(10,970)	1,065	(22,607)	(2,460)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	(17,714)	(7,060)	26,790	38,473
Marketable Securities, Unrealized Gain (Loss)	0	0	0	0
Reclassification adjustments for losses included in net income	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	(17,714)	(7,060)	26,790	38,473
Eliminations
Condensed Financial Statements, Captions [Line Items]
NET INCOME (LOSS)	28,684	5,995	(4,183)	(36,013)
Marketable Securities, Unrealized Gain (Loss)	0	0	0	0
Reclassification adjustments for losses included in net income	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	0	0	0	0
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 28,684	$ 5,995	$ (4,183)	$ (36,013)