Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 200,714	$ 270,861
Receivables	85,992	107,923
Ore on leach pads	67,329	48,204
Inventory, Net	81,711	114,931
Prepaid expenses and other	10,942	15,523
Current assets	446,688	557,442
Property, plant and equipment, net	195,999	227,911
Mining properties, net	589,219	501,192
Ore on leach pads	44,582	37,889
Restricted assets	11,633	7,037
Equity securities	2,766	5,982
Receivables	24,768	21,686
Deferred tax assets	1,942	67,515
Other Assets, Noncurrent	14,892	9,915
TOTAL ASSETS	1,332,489	1,436,569
Accounts payable	48,732	49,052
Accrued liabilities and other	53,953	51,513
Debt	10,431	17,498
Royalty obligations	24,893	43,678
Reclamation	2,071	3,871
Liabilities, Current	140,080	165,612
Debt	479,979	451,048
Royalty obligations	4,864	27,651
Reclamation	83,197	66,943
Deferred tax liabilities	147,132	141,076
Other long-term liabilities	55,761	29,911
Intercompany Payable Receivable	0	0
Non-current liabilities	770,933	716,629
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 151,339,136 at December 31, 2015 and authorized 150,000,000 shares, issued and outstanding 103,384,408 at December 31, 2014	1,513	1,034
Additional paid-in capital	3,024,461	2,789,695
Accumulated deficit	(2,600,776)	(2,233,593)
Accumulated other comprehensive income (loss)	(3,722)	(2,808)
Stockholders' equity	421,476	554,328	$ 1,730,567	$ 2,198,280
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,332,489	1,436,569
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	96,123	210,361
Receivables	11	87
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	3,496	6,349
Current assets	99,630	216,797
Property, plant and equipment, net	4,546	6,155
Mining properties, net	0	12,004
Ore on leach pads	0	0
Restricted assets	5,755	897
Equity securities	434	0
Receivables	0	0
Deferred tax assets	0	30,812
Other Assets, Noncurrent	54,578	50,813
TOTAL ASSETS	292,614	415,401
Accounts payable	1,743	3,414
Accrued liabilities and other	20,555	22,588
Debt	1,000	5,334
Royalty obligations	0	0
Reclamation	0	0
Liabilities, Current	23,298	31,336
Debt	467,634	427,604
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	28,600	60,343
Other long-term liabilities	2,171	2,582
Intercompany Payable Receivable	(650,565)	(660,792)
Non-current liabilities	(152,160)	(170,263)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	127,671	97,923
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 151,339,136 at December 31, 2015 and authorized 150,000,000 shares, issued and outstanding 103,384,408 at December 31, 2014	1,513	1,034
Additional paid-in capital	3,024,461	2,789,695
Accumulated deficit	(2,600,776)	(2,233,593)
Accumulated other comprehensive income (loss)	(3,722)	(2,808)
Stockholders' equity	421,476	554,328
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	292,614	415,401
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	34,228	5,781
Receivables	12,773	11,151
Ore on leach pads	67,329	48,204
Inventory, Net	45,491	54,983
Prepaid expenses and other	1,075	4,557
Current assets	160,896	124,676
Property, plant and equipment, net	138,706	107,084
Mining properties, net	199,303	159,124
Ore on leach pads	44,582	37,889
Restricted assets	381	50
Equity securities	2,332	5,982
Receivables	0	0
Deferred tax assets	0	0
Other Assets, Noncurrent	9,197	5,522
TOTAL ASSETS	583,054	485,942
Accounts payable	18,535	13,391
Accrued liabilities and other	14,598	11,207
Debt	8,120	7,476
Royalty obligations	4,729	5,747
Reclamation	1,401	3,401
Liabilities, Current	47,383	41,222
Debt	4,947	12,806
Royalty obligations	4,864	9,623
Reclamation	61,924	46,792
Deferred tax liabilities	6,927	3,811
Other long-term liabilities	3,838	469
Intercompany Payable Receivable	411,103	427,156
Non-current liabilities	493,603	500,657
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	27,657	45,615
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 151,339,136 at December 31, 2015 and authorized 150,000,000 shares, issued and outstanding 103,384,408 at December 31, 2014	250	250
Additional paid-in capital	179,553	79,712
Accumulated deficit	(135,049)	(133,091)
Accumulated other comprehensive income (loss)	(2,686)	(2,808)
Stockholders' equity	42,068	(55,937)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	583,054	485,942
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	70,363	54,719
Receivables	73,208	96,685
Ore on leach pads	0	0
Inventory, Net	36,220	59,948
Prepaid expenses and other	6,371	4,617
Current assets	186,162	215,969
Property, plant and equipment, net	52,747	114,672
Mining properties, net	389,916	330,064
Ore on leach pads	0	0
Restricted assets	5,497	6,090
Equity securities	0	0
Receivables	24,768	21,686
Deferred tax assets	1,942	36,703
Other Assets, Noncurrent	5,695	4,394
TOTAL ASSETS	666,727	729,578
Accounts payable	28,454	32,247
Accrued liabilities and other	18,800	17,718
Debt	1,311	4,688
Royalty obligations	20,164	37,931
Reclamation	1,821	1,621
Liabilities, Current	70,550	94,205
Debt	61,976	61,452
Royalty obligations	0	18,028
Reclamation	20,122	19,000
Deferred tax liabilities	111,605	76,922
Other long-term liabilities	49,752	26,860
Intercompany Payable Receivable	239,462	233,636
Non-current liabilities	482,917	435,898
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 151,339,136 at December 31, 2015 and authorized 150,000,000 shares, issued and outstanding 103,384,408 at December 31, 2014	130,885	128,299
Additional paid-in capital	1,896,047	1,682,830
Accumulated deficit	(1,913,672)	(1,611,654)
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	113,260	199,475
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	666,727	729,578
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
Other Assets, Noncurrent	(54,578)	(50,814)
TOTAL ASSETS	(209,906)	(194,352)
Accounts payable	0	0
Accrued liabilities and other	0	0
Debt	0	0
Royalty obligations	0	0
Reclamation	(1,151)	(1,151)
Liabilities, Current	(1,151)	(1,151)
Debt	(54,578)	(50,814)
Royalty obligations	0	0
Reclamation	1,151	1,151
Deferred tax liabilities	0	0
Other long-term liabilities	0	0
Intercompany Payable Receivable	0	0
Non-current liabilities	(53,427)	(49,663)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(155,328)	(143,538)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 151,339,136 at December 31, 2015 and authorized 150,000,000 shares, issued and outstanding 103,384,408 at December 31, 2014	(131,135)	(128,549)
Additional paid-in capital	(2,075,600)	(1,762,542)
Accumulated deficit	2,048,721	1,744,745
Accumulated other comprehensive income (loss)	2,686	2,808
Stockholders' equity	(155,328)	(143,538)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (209,906)	$ (194,352)