Supplemental Guarantor Information Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 73,330	$ 56,664	$ 154,066
Receivables	29,221	32,417
Ore on leach pads	89,406	81,128
Inventory	52,944	51,281
Prepaid expenses and other	14,340	13,847
Current assets	259,241	289,577
Property, plant and equipment, net	337,455	319,967
Restricted assets	9,254	9,138
Equity securities	161,894	132,197
Other	63,086	57,249
TOTAL ASSETS	1,817,201	1,734,422
Accounts payable	103,266	103,901
Accrued liabilities and other	82,438	87,946
Debt	29,620	29,821
Reclamation	2,853	2,931
Current liabilities	218,177	235,868
Debt	455,868	457,680
Reclamation	181,473	178,957
Deferred tax liabilities	24,647	21,969
Other long-term liabilities	37,062	39,686
Non-current liabilities	699,050	698,292
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 280,834,764 issued and outstanding at March 31, 2022 and 256,919,803 at December 31, 2021	2,808	2,569
Additional paid-in capital	3,834,896	3,738,347
Accumulated deficit	(2,931,760)	(2,939,442)
Accumulated other comprehensive income (loss)	(5,970)	(1,212)
Stockholders' equity	899,974	800,262	$ 720,506	$ 693,479
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,817,201	1,734,422
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	4,035	2,499
Receivables	4,569	(14)
Ore on leach pads	0	0
Inventory	0	0
Prepaid expenses and other	8,808	8,660
Current assets	17,412	11,145
Property, plant and equipment, net	1,343	1,476
Mining properties, net	11,200	0
Ore on leach pads	0	0
Restricted assets	1,493	1,496
Equity securities	161,894	132,197
Net investment in subsidiaries	772,325	794,254
Other	47,455	47,317
TOTAL ASSETS	1,013,122	987,885
Accounts payable	1,740	1,624
Accrued liabilities and other	9,629	16,729
Debt	0	0
Reclamation	0	0
Current liabilities	11,369	18,353
Debt	451,522	463,318
Reclamation	0	0
Deferred tax liabilities	920	751
Other long-term liabilities	3,142	3,266
Intercompany payable (receivable)	(353,805)	(298,065)
Non-current liabilities	101,779	169,270
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 280,834,764 issued and outstanding at March 31, 2022 and 256,919,803 at December 31, 2021	2,808	2,569
Additional paid-in capital	3,834,896	3,738,347
Accumulated deficit	(2,931,760)	(2,939,442)
Accumulated other comprehensive income (loss)	(5,970)	(1,212)
Stockholders' equity	899,974	800,262
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	1,013,122	987,885
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	18,949	16,126
Receivables	7,553	5,607
Ore on leach pads	89,406	81,128
Inventory	26,815	24,954
Prepaid expenses and other	1,114	813
Current assets	143,837	128,628
Property, plant and equipment, net	203,363	188,721
Mining properties, net	559,217	514,397
Ore on leach pads	73,133	73,495
Restricted assets	206	206
Equity securities	0	0
Net investment in subsidiaries	54,326	56,623
Other	51,214	53,511
TOTAL ASSETS	1,085,296	1,015,581
Accounts payable	64,113	59,463
Accrued liabilities and other	54,189	45,676
Debt	24,538	23,608
Reclamation	1,561	1,561
Current liabilities	144,401	130,308
Debt	65,909	53,166
Reclamation	127,268	125,695
Deferred tax liabilities	7,456	7,422
Other long-term liabilities	18,956	20,826
Intercompany payable (receivable)	341,389	286,655
Non-current liabilities	560,978	493,764
Common stock, par value $0.01 per share; authorized 300,000,000 shares, 280,834,764 issued and outstanding at March 31, 2022 and 256,919,803 at December 31, 2021	19,417	19,356
Additional paid-in capital	340,700	340,701
Accumulated deficit	19,800	31,452
Accumulated other comprehensive income (loss)	0	0
Stockholders' equity	379,917	391,509
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 1,085,296	$ 1,015,581