Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ 125,817	$ 113,542	$ 53,548
Capital expenditures	(101,013)	(95,193)	(64,244)
Proceeds from Sale of Property, Plant, and Equipment	16,296	607	329
Purchase of short term investments and equity securities	(178)	(1,880)	(50,513)
Sales and maturities of short-term investments	7,077	605	54,344
Acquisitions, net of cash acquired	(1,417)	(110,846)	(21,329)
Payments for (Proceeds from) Other Investing Activities	(4,208)	(4,586)	(321)
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0	0
CASH USED IN INVESTING ACTIVITIES	(83,443)	(211,293)	(81,734)
Proceeds from Convertible Debt		153,500	167,784
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(322,801)	(84,715)	(25,902)
Cash payments on gold production royalty	(27,155)	(39,235)	(48,395)
Proceeds From Repayment Intercompany Borrowings	0	0	0
Proceeds from Issuance of Common Stock	269,556	0	0
Proceeds from (Payments for) Other Financing Activities	172	(542)	(509)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(80,228)	29,008	92,978
Effect of exchange rate changes on cash and cash equivalents	(678)	(1,404)	(621)
Cash and Cash Equivalents, Period Increase (Decrease)	(38,532)	(70,147)	64,171
Cash and cash equivalents at beginning of period	200,714	270,861	206,690
Cash and cash equivalents at end of period	162,182	200,714	270,861
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	62,207	(377,091)	(1,175,464)
Capital expenditures	(246)	(514)	(1,849)
Proceeds from Sale of Property, Plant, and Equipment	0	0	0
Purchase of short term investments and equity securities	(178)	(1,880)	(50,013)
Sales and maturities of short-term investments	501	2	49,069
Acquisitions, net of cash acquired	0	(110,846)	(12,079)
Payments for (Proceeds from) Other Investing Activities	(4,396)	(4,710)	0
Payments to Acquire Interest in Subsidiaries and Affiliates	(107,855)	282,041	1,151,372
CASH USED IN INVESTING ACTIVITIES	(112,174)	164,093	1,136,500
Proceeds from Convertible Debt		150,000	153,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(303,686)	(62,930)	(18,545)
Cash payments on gold production royalty	0	0	0
Proceeds From Repayment Intercompany Borrowings	45,850	12,232	(21,697)
Proceeds from Issuance of Common Stock	269,556
Proceeds from (Payments for) Other Financing Activities	172	(542)	(509)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	11,892	98,760	112,249
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	(38,075)	(114,238)	73,285
Cash and cash equivalents at beginning of period	96,123	210,361	137,076
Cash and cash equivalents at end of period	58,048	96,123	210,361
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	134,892	86,486	41,292
Capital expenditures	(58,084)	(52,376)	(28,118)
Proceeds from Sale of Property, Plant, and Equipment	4,800	289	48
Purchase of short term investments and equity securities	0	0	(429)
Sales and maturities of short-term investments	6,576	532	5,261
Acquisitions, net of cash acquired	0	0	(4,000)
Payments for (Proceeds from) Other Investing Activities	368	234	0
Payments to Acquire Interest in Subsidiaries and Affiliates	25,047	20,239	4,106
CASH USED IN INVESTING ACTIVITIES	(21,293)	(31,082)	(23,132)
Proceeds from Convertible Debt		0	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(10,894)	(7,428)	(6,114)
Cash payments on gold production royalty	0	0	0
Proceeds From Repayment Intercompany Borrowings	(86,914)	(19,518)	(7,256)
Proceeds from Issuance of Common Stock	0
Proceeds from (Payments for) Other Financing Activities	0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(97,808)	(26,946)	(13,370)
Effect of exchange rate changes on cash and cash equivalents	4	(11)	0
Cash and Cash Equivalents, Period Increase (Decrease)	15,795	28,447	4,790
Cash and cash equivalents at beginning of period	34,228	5,781	991
Cash and cash equivalents at end of period	50,023	34,228	5,781
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	55,687	79,458	81,248
Capital expenditures	(42,683)	(42,303)	(34,277)
Proceeds from Sale of Property, Plant, and Equipment	11,496	318	281
Purchase of short term investments and equity securities	0	0	(71)
Sales and maturities of short-term investments	0	71	14
Acquisitions, net of cash acquired	(1,417)	0	(5,250)
Payments for (Proceeds from) Other Investing Activities	(180)	(110)	(321)
Payments to Acquire Interest in Subsidiaries and Affiliates	0	120	0
CASH USED IN INVESTING ACTIVITIES	(32,784)	(41,904)	(39,624)
Proceeds from Convertible Debt		3,500	14,784
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(8,221)	(14,357)	(1,243)
Cash payments on gold production royalty	(27,155)	(39,235)	(48,395)
Proceeds From Repayment Intercompany Borrowings	(3,097)	29,575	(20,053)
Proceeds from Issuance of Common Stock	0
Proceeds from (Payments for) Other Financing Activities	0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(38,473)	(20,517)	(54,907)
Effect of exchange rate changes on cash and cash equivalents	(682)	(1,393)	(621)
Cash and Cash Equivalents, Period Increase (Decrease)	(16,252)	15,644	(13,904)
Cash and cash equivalents at beginning of period	70,363	54,719	68,623
Cash and cash equivalents at end of period	54,111	70,363	54,719
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	(126,969)	324,689	1,106,472
Capital expenditures	0	0	0
Proceeds from Sale of Property, Plant, and Equipment	0	0	0
Purchase of short term investments and equity securities	0	0	0
Sales and maturities of short-term investments	0	0	0
Acquisitions, net of cash acquired	0	0	0
Payments for (Proceeds from) Other Investing Activities	0	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	82,808	(302,400)	(1,155,478)
CASH USED IN INVESTING ACTIVITIES	82,808	(302,400)	(1,155,478)
Proceeds from Convertible Debt		0	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	0	0	0
Cash payments on gold production royalty	0	0	0
Proceeds From Repayment Intercompany Borrowings	44,161	(22,289)	49,006
Proceeds from Issuance of Common Stock	0
Proceeds from (Payments for) Other Financing Activities	0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	44,161	(22,289)	49,006
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	0	0	0
Cash and cash equivalents at beginning of period	0	0	0
Cash and cash equivalents at end of period	$ 0	$ 0	$ 0