Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 56,664	$ 92,794
Receivables	32,417	23,484
Ore on leach pads	81,128	74,866
Inventory	51,281	51,210
Prepaid expenses and other	13,847	27,254
Current assets	289,577	269,608
Property, plant and equipment, net	319,967	230,139
Restricted assets	9,138	9,492
Equity securities	132,197	12,943
Other	57,249	56,595
TOTAL ASSETS	1,734,422	1,403,977
Accounts payable	103,901	90,577
Accrued liabilities and other	87,946	119,158
Debt	29,821	22,074
Reclamation	2,931	2,299
Current liabilities	235,868	234,108
Debt	457,680	253,427
Reclamation	178,957	136,975
Deferred tax liabilities	21,969	34,202
Other long-term liabilities	39,686	51,786
Non-current liabilities	698,292	476,390
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 256,919,803 issued and outstanding at December 31, 2021 and 243,751,283 at December 31, 2020	2,569	2,438
Additional paid-in capital	3,738,347	3,610,297
Accumulated deficit	(2,939,442)	(2,908,120)
Accumulated other comprehensive income (loss)	(1,212)	(11,136)
Stockholders' equity	800,262	693,479	$ 667,004	$ 852,512
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,734,422	1,403,977
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	2,499	12,727
Receivables	(14)	381
Ore on leach pads	0	0
Inventory	0	0
Prepaid expenses and other	8,660	20,872
Current assets	11,145	33,980
Property, plant and equipment, net	1,476	1,946
Mining properties, net	0	0
Ore on leach pads	0	0
Restricted assets	1,496
Equity securities	132,197
Marketable Securities, Noncurrent		12,943
Net investment in subsidiaries	794,254	514,705
Other	47,317	198,587
TOTAL ASSETS	987,885	763,643
Accounts payable	1,624	1,978
Accrued liabilities and other	16,729	36,183
Debt	0	0
Reclamation	0	0
Current liabilities	18,353	38,161
Debt	463,318	227,592
Reclamation	0	0
Deferred tax liabilities	751	100
Other long-term liabilities	3,266	3,629
Intercompany payable (receivable)	(298,065)	(199,318)
Non-current liabilities	169,270	32,003
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 256,919,803 issued and outstanding at December 31, 2021 and 243,751,283 at December 31, 2020	2,569	2,438
Additional paid-in capital	3,738,347	3,610,297
Accumulated deficit	(2,939,442)	(2,908,120)
Accumulated other comprehensive income (loss)	(1,212)	(11,136)
Stockholders' equity	800,262	693,479
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	987,885	763,643
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	16,126	28,515
Receivables	5,607	3,631
Ore on leach pads	81,128	74,866
Inventory	24,954	27,223
Prepaid expenses and other	813	1,375
Current assets	128,628	135,610
Property, plant and equipment, net	188,721	148,640
Mining properties, net	514,397	353,818
Ore on leach pads	73,495	81,963
Restricted assets	206
Equity securities	0
Marketable Securities, Noncurrent		0
Net investment in subsidiaries	56,623	72,785
Other	53,511	51,528
TOTAL ASSETS	1,015,581	844,550
Accounts payable	59,463	52,177
Accrued liabilities and other	45,676	46,023
Debt	23,608	14,506
Reclamation	1,561	1,584
Current liabilities	130,308	114,290
Debt	53,166	33,321
Reclamation	125,695	93,349
Deferred tax liabilities	7,422	8,457
Other long-term liabilities	20,826	29,916
Intercompany payable (receivable)	286,655	176,914
Non-current liabilities	493,764	341,957
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 256,919,803 issued and outstanding at December 31, 2021 and 243,751,283 at December 31, 2020	19,356	20,401
Additional paid-in capital	340,701	340,700
Accumulated deficit	31,452	27,202
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	391,509	388,303
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,015,581	$ 844,550