Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 210,033	$ 162,182
Receivables	67,064	60,431
Ore on leach pads	66,585	64,167
Inventory, Net	73,760	106,026
Prepaid expenses and other	22,450	17,981
Current assets	439,892	410,787
Property, plant and equipment, net	222,617	216,796
Mining properties, net	549,207	558,455
Ore on leach pads	72,461	67,231
Restricted assets	18,954	17,597
Equity securities	3,796	4,488
Receivables	15,558	30,951
Deferred tax assets		0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
Other Assets, Noncurrent	15,265	12,604
TOTAL ASSETS	1,337,750	1,318,909
Accounts payable	47,370	53,335
Accrued liabilities and other	37,999	42,743
Debt	13,451	12,039
Royalty obligations	4,961	4,995
Reclamation	3,604	3,522
Liabilities, Current	107,385	116,634
Debt	205,625	198,857
Royalty obligations	4,316	4,292
Reclamation	97,595	95,804
Deferred tax liabilities	76,363	74,798
Other long-term liabilities	59,846	60,037
Intercompany Payable Receivable	0	0
Non-current liabilities	443,745	433,788
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	1,815	1,809
Additional paid-in capital	3,314,644	3,314,590
Accumulated deficit	(2,526,761)	(2,545,424)
Accumulated other comprehensive income (loss)	(3,078)	(2,488)
Stockholders' equity	786,620	768,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	1,337,750	1,318,909
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	67,102	58,048
Receivables	(12)	12
Ore on leach pads	0	0
Inventory, Net	0	0
Prepaid expenses and other	7,719	3,803
Current assets	74,809	61,863
Property, plant and equipment, net	3,217	3,222
Mining properties, net	4,000	0
Ore on leach pads	0	0
Restricted assets	11,701	10,170
Equity securities	450	0
Receivables	0	0
Deferred tax assets		0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	274,724	273,056
Other Assets, Noncurrent	216,386	221,381
TOTAL ASSETS	585,287	569,692
Accounts payable	1,547	2,153
Accrued liabilities and other	7,234	12,881
Debt	0	0
Royalty obligations	0	0
Reclamation	0	0
Liabilities, Current	8,781	15,034
Debt	176,114	175,991
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	9,072	13,810
Other long-term liabilities	2,407	1,993
Intercompany Payable Receivable	(397,707)	(405,623)
Non-current liabilities	(210,114)	(213,829)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	1,815	1,809
Additional paid-in capital	3,314,644	3,314,590
Accumulated deficit	(2,526,761)	(2,545,424)
Accumulated other comprehensive income (loss)	(3,078)	(2,488)
Stockholders' equity	786,620	768,487
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	585,287	569,692
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	45,976	50,023
Receivables	9,084	6,865
Ore on leach pads	66,585	64,167
Inventory, Net	38,295	49,393
Prepaid expenses and other	3,699	1,459
Current assets	163,639	171,907
Property, plant and equipment, net	146,122	139,885
Mining properties, net	202,397	195,791
Ore on leach pads	72,461	67,231
Restricted assets	226	226
Equity securities	3,346	4,488
Receivables	0	0
Deferred tax assets		0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	11,720	11,650
Other Assets, Noncurrent	10,009	9,263
TOTAL ASSETS	609,920	600,441
Accounts payable	21,364	24,921
Accrued liabilities and other	9,555	13,664
Debt	7,852	6,516
Royalty obligations	4,961	4,995
Reclamation	2,754	2,672
Liabilities, Current	46,486	52,768
Debt	23,288	15,214
Royalty obligations	4,316	4,292
Reclamation	76,443	75,183
Deferred tax liabilities	6,354	6,179
Other long-term liabilities	4,756	4,750
Intercompany Payable Receivable	326,814	336,813
Non-current liabilities	441,971	442,431
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	250	250
Additional paid-in capital	181,683	181,009
Accumulated deficit	(57,455)	(73,529)
Accumulated other comprehensive income (loss)	(3,015)	(2,488)
Stockholders' equity	121,463	105,242
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	609,920	600,441
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	96,955	54,111
Receivables	57,992	53,554
Ore on leach pads	0	0
Inventory, Net	35,465	56,633
Prepaid expenses and other	11,032	12,719
Current assets	201,444	177,017
Property, plant and equipment, net	73,278	73,689
Mining properties, net	342,810	362,664
Ore on leach pads	0	0
Restricted assets	7,027	7,201
Equity securities	0	0
Receivables	15,558	30,951
Deferred tax assets		191
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(624)	0
Other Assets, Noncurrent	5,256	3,153
TOTAL ASSETS	644,749	654,866
Accounts payable	24,459	26,261
Accrued liabilities and other	21,210	16,198
Debt	5,599	5,523
Royalty obligations	0	0
Reclamation	850	850
Liabilities, Current	52,118	48,832
Debt	222,609	229,036
Royalty obligations	0	0
Reclamation	21,152	20,621
Deferred tax liabilities	60,937	54,809
Other long-term liabilities	52,683	53,294
Intercompany Payable Receivable	70,893	68,810
Non-current liabilities	428,274	426,570
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	191,613	197,913
Additional paid-in capital	1,809,557	1,864,261
Accumulated deficit	(1,836,813)	(1,882,710)
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	164,357	179,464
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	644,749	654,866
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		(191)
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	(285,820)	(284,706)
Other Assets, Noncurrent	(216,386)	(221,193)
TOTAL ASSETS	(502,206)	(506,090)
Accounts payable	0	0
Accrued liabilities and other	0	0
Debt	0	0
Royalty obligations	0	0
Reclamation	0	0
Liabilities, Current	0	0
Debt	(216,386)	(221,384)
Royalty obligations	0	0
Reclamation	0	0
Deferred tax liabilities	0	0
Other long-term liabilities	0	0
Intercompany Payable Receivable	0	0
Non-current liabilities	(216,386)	(221,384)
Common stock, par value $0.01 per share; authorized 300,000,000 shares, issued and outstanding 181,492,911 at March 31, 2017 and 180,933,287 at December 31, 2016	(191,863)	(198,163)
Additional paid-in capital	(1,991,240)	(2,045,270)
Accumulated deficit	1,894,268	1,956,239
Accumulated other comprehensive income (loss)	3,015	2,488
Stockholders' equity	(285,820)	(284,706)
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ (502,206)	$ (506,090)