Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jan. 29, 2013
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 269,133	$ 206,690
Investments	47,642	0
Receivables	68,693	81,074
Ore on leach pads	44,964	50,495
Inventory	137,644	132,023
Deferred tax assets	35,079	35,008
Prepaid expenses and other	23,593	25,940
Assets, Current	626,748	531,230
Property, plant and equipment, net	482,787	486,273
Mining properties, net	1,728,667	1,751,501
Ore on leach pads	46,956	31,528
Restricted assets	7,510	7,014
Marketable securities	13,761	14,521
Receivables	38,424	36,574
Unamortized Debt Issuance Expense	11,031	10,812
Deferred tax assets	808	1,189
Other Assets, Noncurrent	10,830	15,336
TOTAL ASSETS	2,967,522	2,885,978
Accounts payable	49,651	53,847
Accrued liabilities and other	40,632	38,266
Debt	11,565	2,505
Royalty obligations	51,087	48,019
Reclamation	752	913
Deferred tax liabilities	1,858	1,011
Liabilities, Current	155,545	144,561
Debt	468,570	306,130
Royalty obligations	58,505	65,142
Reclamation	59,757	57,515
Deferred tax liabilities	540,232	556,246
Other long-term liabilities	28,280	25,817
Intercompany Payable Receivable	0	0
Non-current liabilities	1,155,344	1,010,850
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,485,960 at June 30, 2014 and 102,843,003 at December 31, 2013	1,034	1,028
Additional paid-in capital	2,785,761	2,781,164
Accumulated deficit	(1,127,031)	(1,046,719)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,131)	(4,906)
Stockholders' Equity Attributable to Parent	1,656,633	1,730,567
Liabilities and Equity	2,967,522	2,885,978
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	211,664	137,076
Investments	47,642	0
Receivables	83	530
Ore on leach pads	0	0
Inventory	0	0
Deferred tax assets	0	0
Prepaid expenses and other	2,573	4,128
Assets, Current	261,962	141,734
Property, plant and equipment, net	6,234	5,980
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	830	830
Marketable securities	0	0
Receivables	0	0
Unamortized Debt Issuance Expense	11,031	10,812
Deferred tax assets	955	955
Other Assets, Noncurrent	55,212	53,858
TOTAL ASSETS	1,501,498	1,456,649
Accounts payable	2,209	1,963
Accrued liabilities and other	19,768	16,693
Debt	5,334	0
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	0	0
Liabilities, Current	27,311	18,656
Debt	452,855	305,335
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	31,595	37,095
Other long-term liabilities	2,901	2,467
Intercompany Payable Receivable	(669,797)	(637,471)
Non-current liabilities	(182,446)	(292,574)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,165,274	1,242,480
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,485,960 at June 30, 2014 and 102,843,003 at December 31, 2013	1,034	1,028
Additional paid-in capital	2,785,761	2,781,164
Accumulated deficit	(1,127,031)	(1,046,719)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,131)	(4,906)
Stockholders' Equity Attributable to Parent	1,656,633	1,730,567
Liabilities and Equity	1,501,498	1,456,649
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	899	991
Investments		0
Receivables	10,420	19,982
Ore on leach pads	44,964	50,495
Inventory	47,331	35,290
Deferred tax assets	0	0
Prepaid expenses and other	8,546	5,282
Assets, Current	112,160	112,040
Property, plant and equipment, net	153,551	143,118
Mining properties, net	235,216	235,537
Ore on leach pads	46,956	31,528
Restricted assets	50	50
Marketable securities	13,761	14,521
Receivables	0	0
Unamortized Debt Issuance Expense	0	0
Deferred tax assets		0
Other Assets, Noncurrent	31,601	14,616
TOTAL ASSETS	617,572	597,625
Accounts payable	16,456	15,864
Accrued liabilities and other	7,370	8,016
Debt	5,637	1,262
Royalty obligations	4,716	3,934
Reclamation	0	0
Deferred tax liabilities	847	0
Liabilities, Current	35,026	29,076
Debt	15,345	255
Royalty obligations	18,941	17,696
Reclamation	47,467	45,894
Deferred tax liabilities	1,618	1,618
Other long-term liabilities	518	544
Intercompany Payable Receivable	437,030	427,085
Non-current liabilities	520,919	493,092
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	24,277	46,215
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,485,960 at June 30, 2014 and 102,843,003 at December 31, 2013	250	250
Additional paid-in capital	79,712	79,712
Accumulated deficit	(15,226)	401
Accumulated Other Comprehensive Income (Loss), Net of Tax	(3,109)	(4,906)
Stockholders' Equity Attributable to Parent	61,627	75,457
Liabilities and Equity	617,572	597,625
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	56,570	68,623
Investments		0
Receivables	58,190	60,562
Ore on leach pads	0	0
Inventory	90,313	96,733
Deferred tax assets	35,079	35,008
Prepaid expenses and other	12,474	16,530
Assets, Current	252,626	277,456
Property, plant and equipment, net	323,002	337,175
Mining properties, net	1,493,451	1,515,964
Ore on leach pads	0	0
Restricted assets	6,630	6,134
Marketable securities	0	0
Receivables	38,424	36,574
Unamortized Debt Issuance Expense	0	0
Deferred tax assets	(147)	234
Other Assets, Noncurrent	324,941	320,425
TOTAL ASSETS	4,039,965	4,072,761
Accounts payable	30,986	36,020
Accrued liabilities and other	14,577	14,611
Debt	334,873	309,472
Royalty obligations	46,371	44,085
Reclamation	633	794
Deferred tax liabilities	1,011	1,011
Liabilities, Current	428,451	405,993
Debt	65,932	64,820
Royalty obligations	39,564	47,446
Reclamation	12,409	11,740
Deferred tax liabilities	507,019	517,533
Other long-term liabilities	24,861	22,806
Intercompany Payable Receivable	232,767	210,386
Non-current liabilities	882,552	874,731
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	1,601,038	1,578,799
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,485,960 at June 30, 2014 and 102,843,003 at December 31, 2013	123,167	122,666
Additional paid-in capital	3,258,037	3,258,037
Accumulated deficit	(652,242)	(588,666)
Accumulated Other Comprehensive Income (Loss), Net of Tax	0	0
Stockholders' Equity Attributable to Parent	2,728,962	2,792,037
Liabilities and Equity	4,039,965	4,072,761
Eliminations
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0
Investments	0	0
Receivables	0	0
Ore on leach pads	0	0
Inventory	0	0
Deferred tax assets	0	0
Prepaid expenses and other	0	0
Assets, Current	0	0
Property, plant and equipment, net	0	0
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	0	0
Marketable securities	0	0
Receivables	0	0
Unamortized Debt Issuance Expense	0	0
Deferred tax assets	0	0
Other Assets, Noncurrent	(400,924)	(373,563)
TOTAL ASSETS	(3,191,513)	(3,241,057)
Accounts payable	0	0
Accrued liabilities and other	(1,083)	(1,054)
Debt	(334,279)	(308,229)
Royalty obligations	0	0
Reclamation	119	119
Deferred tax liabilities	0	0
Liabilities, Current	(335,243)	(309,164)
Debt	(65,562)	(64,280)
Royalty obligations	0	0
Reclamation	(119)	(119)
Deferred tax liabilities	0	0
Other long-term liabilities	0	0
Intercompany Payable Receivable	0	0
Non-current liabilities	(65,681)	(64,399)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(2,790,589)	(2,867,494)
Common stock, par value $0.01 per share; authorized 150,000,000 shares, issued and outstanding 103,485,960 at June 30, 2014 and 102,843,003 at December 31, 2013	(123,417)	(122,916)
Additional paid-in capital	(3,337,749)	(3,337,749)
Accumulated deficit	667,468	588,265
Accumulated Other Comprehensive Income (Loss), Net of Tax	3,109	4,906
Stockholders' Equity Attributable to Parent	(2,790,589)	(2,867,494)
Liabilities and Equity	(3,191,513)	(3,241,057)
Senior Notes due Two Thousand Twenty One [Member]
Condensed Financial Statements, Captions [Line Items]
Debt	$ 452,855	$ 300,000
Debt Instrument, Interest Rate, Stated Percentage	7.875%	7.875%	7.875%