Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 257,591	$ 200,714
Receivables	79,932	85,992
Ore on leach pads	76,335	67,329
Inventory, Net	84,074	81,711
Prepaid expenses and other	11,614	10,942
Current assets	509,546	446,688
Property, plant and equipment, net	217,345	195,999
Mining properties, net	552,035	589,219
Ore on leach pads	52,885	44,582
Restricted assets	14,792	11,633
Equity securities	11,250	2,766
Receivables	39,739	24,768
Deferred tax assets	1,370	1,942
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other Assets, Noncurrent	12,893	14,892
TOTAL ASSETS	1,411,855	1,332,489
Accounts payable	49,219	48,732
Accrued liabilities and other	50,169	53,953
Debt	108,809	10,431
Royalty obligations	12,915	24,893
Reclamation	1,790	2,071
Liabilities, Current	222,902	140,080
Debt	402,257	479,979
Royalty obligations	7,069	4,864
Reclamation	85,048	83,197
Deferred tax liabilities	131,459	147,132
Other long-term liabilities	66,961	55,761
Intercompany Payable Receivable	0	0
Non-current liabilities	692,794	770,933
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 162,370,864 at June 30, 2016 and 151,339,136 at December 31, 2015	1,624	1,513
Additional paid-in capital	3,101,493	3,024,461
Accumulated deficit	(2,606,675)	(2,600,776)
Accumulated other comprehensive income (loss)	(283)	(3,722)
Stockholders' equity	496,159	421,476
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,411,855	1,332,489
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	127,803	96,123
Receivables	26	11
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	2,314	3,496
Current assets	130,143	99,630
Property, plant and equipment, net	3,844	4,546
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	8,901	5,755
Equity securities	0	434
Receivables	0	0
Deferred tax assets	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	151,006	127,671
Other Assets, Noncurrent	218,195	54,578
TOTAL ASSETS	512,089	292,614
Accounts payable	1,481	1,743
Accrued liabilities and other	16,958	20,555
Debt	95,257	1,000
Royalty obligations	0	0
Reclamation	0	0
Liabilities, Current	113,696	23,298
Debt	373,956	467,634
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	28,430	28,600
Other long-term liabilities	2,070	2,171
Intercompany Payable Receivable	(502,222)	(650,565)
Non-current liabilities	(97,766)	(152,160)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 162,370,864 at June 30, 2016 and 151,339,136 at December 31, 2015	1,624	1,513
Additional paid-in capital	3,101,493	3,024,461
Accumulated deficit	(2,606,675)	(2,600,776)
Accumulated other comprehensive income (loss)	(283)	(3,722)
Stockholders' equity	496,159	421,476
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	512,089	292,614
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	53,548	34,228
Receivables	12,454	12,773
Ore on leach pads	76,335	67,329
Inventory, Net	46,484	45,491
Prepaid expenses and other	2,313	1,075
Current assets	191,134	160,896
Property, plant and equipment, net	144,514	138,706
Mining properties, net	183,649	199,303
Ore on leach pads	52,885	44,582
Restricted assets	185	381
Equity securities	11,250	2,332
Receivables	0	0
Deferred tax assets	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	10,850	27,657
Other Assets, Noncurrent	9,352	9,197
TOTAL ASSETS	603,819	583,054
Accounts payable	19,431	18,535
Accrued liabilities and other	12,718	14,598
Debt	8,288	8,120
Royalty obligations	5,490	4,729
Reclamation	1,402	1,401
Liabilities, Current	47,329	47,383
Debt	17,848	4,947
Royalty obligations	7,069	4,864
Reclamation	64,334	61,924
Deferred tax liabilities	6,778	6,927
Other long-term liabilities	4,731	3,838
Intercompany Payable Receivable	392,069	411,103
Non-current liabilities	492,829	493,603
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 162,370,864 at June 30, 2016 and 151,339,136 at December 31, 2015	250	250
Additional paid-in capital	179,553	179,553
Accumulated deficit	(115,859)	(135,049)
Accumulated other comprehensive income (loss)	(283)	(2,686)
Stockholders' equity	63,661	42,068
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	603,819	583,054
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	76,240	70,363
Receivables	67,452	73,208
Ore on leach pads	0	0
Inventory, Net	37,590	36,220
Prepaid expenses and other	6,987	6,371
Current assets	188,269	186,162
Property, plant and equipment, net	68,987	52,747
Mining properties, net	368,386	389,916
Ore on leach pads	0	0
Restricted assets	5,706	5,497
Equity securities	0	0
Receivables	39,739	24,768
Deferred tax assets	1,370	1,942
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other Assets, Noncurrent	3,540	5,695
TOTAL ASSETS	675,997	666,727
Accounts payable	28,307	28,454
Accrued liabilities and other	20,493	18,800
Debt	5,264	1,311
Royalty obligations	7,425	20,164
Reclamation	388	1,821
Liabilities, Current	61,877	70,550
Debt	228,647	61,976
Royalty obligations	0	0
Reclamation	20,714	20,122
Deferred tax liabilities	96,251	111,605
Other long-term liabilities	60,160	49,752
Intercompany Payable Receivable	110,153	239,462
Non-current liabilities	515,925	482,917
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 162,370,864 at June 30, 2016 and 151,339,136 at December 31, 2015	163,455	130,885
Additional paid-in capital	1,863,739	1,896,047
Accumulated deficit	(1,928,999)	(1,913,672)
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	98,195	113,260
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	675,997	666,727
Eliminations
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0
Receivables	0	0
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	0	0
Current assets	0	0
Property, plant and equipment, net	0	0
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	0	0
Equity securities	0	0
Receivables	0	0
Deferred tax assets	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(161,856)	(155,328)
Other Assets, Noncurrent	(218,194)	(54,578)
TOTAL ASSETS	(380,050)	(209,906)
Accounts payable	0	0
Accrued liabilities and other	0	0
Debt	0	0
Royalty obligations	0	0
Reclamation	0	(1,151)
Liabilities, Current	0	(1,151)
Debt	(218,194)	(54,578)
Royalty obligations	0	0
Reclamation	0	1,151
Deferred tax liabilities	0	0
Other long-term liabilities	0	0
Intercompany Payable Receivable	0	0
Non-current liabilities	(218,194)	(53,427)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 162,370,864 at June 30, 2016 and 151,339,136 at December 31, 2015	(163,705)	(131,135)
Additional paid-in capital	(2,043,292)	(2,075,600)
Accumulated deficit	2,044,858	2,048,721
Accumulated other comprehensive income (loss)	283	2,686
Stockholders' equity	(161,856)	(155,328)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (380,050)	$ (209,906)