Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands		12 Months Ended
	May. 27, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Acquisitions, net of cash acquired		$ (110,846)	$ (21,329)	$ (116,898)
Net Cash Provided by (Used in) Operating Activities		113,542	53,548	113,967
Capital expenditures		(95,193)	(64,244)	(100,813)
Purchase of short term investments and equity securities		(1,880)	(50,513)	(8,052)
Sales and maturities of short-term investments		605	54,344	34,796
Proceeds from Discontinued Operations Sale of Assets and Other		(3,979)	8	4,478
Payments to Acquire Interest in Subsidiaries and Affiliates		0	0	0
CASH USED IN INVESTING ACTIVITIES		(211,293)	(81,734)	(186,489)
Issuance of notes and bank borrowings		153,500	167,784	300,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(84,715)	(25,902)	(60,628)
Cash payments on gold production royalty	$ (1,800)	(39,235)	(48,395)	(57,034)
Proceeds From Repayment Intercompany Borrowings		0	0	0
Proceeds from (Payments for) Other Financing Activities		(542)	(509)	(514)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		29,008	92,978	154,272
Effect of exchange rate changes on cash and cash equivalents		(1,404)	(621)	(500)
Cash and Cash Equivalents, Period Increase (Decrease)		(70,147)	64,171	81,250
Cash and cash equivalents at beginning of period		270,861	206,690	125,440
Cash and cash equivalents at end of period		200,714	270,861	206,690
Payments for Repurchase of Common Stock		0	0	(27,552)
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Acquisitions, net of cash acquired		(110,846)	(12,079)	(113,214)
Net Cash Provided by (Used in) Operating Activities		(377,091)	(1,175,464)	(701,653)
Capital expenditures		(514)	(1,849)	(3,573)
Purchase of short term investments and equity securities		(1,880)	(50,013)	(2,921)
Sales and maturities of short-term investments		2	49,069	29,274
Proceeds from Discontinued Operations Sale of Assets and Other		(4,710)	0	3,266
Payments to Acquire Interest in Subsidiaries and Affiliates		282,041	1,151,372	642,617
CASH USED IN INVESTING ACTIVITIES		164,093	1,136,500	555,449
Issuance of notes and bank borrowings		150,000	153,000	300,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(62,930)	(18,545)	(52,568)
Cash payments on gold production royalty		0	0	0
Proceeds From Repayment Intercompany Borrowings		12,232	(21,697)	(22,874)
Proceeds from (Payments for) Other Financing Activities		(542)	(509)	(514)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		98,760	112,249	196,492
Effect of exchange rate changes on cash and cash equivalents		0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)		(114,238)	73,285	50,288
Cash and cash equivalents at beginning of period		210,361	137,076	86,788
Cash and cash equivalents at end of period		96,123	210,361	137,076
Payments for Repurchase of Common Stock				(27,552)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Acquisitions, net of cash acquired		0	(4,000)	(3,684)
Net Cash Provided by (Used in) Operating Activities		86,486	41,292	17,456
Capital expenditures		(52,376)	(28,118)	(50,810)
Purchase of short term investments and equity securities		0	(429)	(66)
Sales and maturities of short-term investments		532	5,261	75
Proceeds from Discontinued Operations Sale of Assets and Other		523	48	444
Payments to Acquire Interest in Subsidiaries and Affiliates		20,239	4,106	68
CASH USED IN INVESTING ACTIVITIES		(31,082)	(23,132)	(53,973)
Issuance of notes and bank borrowings		0	0	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(7,428)	(6,114)	(3,171)
Cash payments on gold production royalty		0	0	0
Proceeds From Repayment Intercompany Borrowings		(19,518)	(7,256)	40,279
Proceeds from (Payments for) Other Financing Activities		0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(26,946)	(13,370)	37,108
Effect of exchange rate changes on cash and cash equivalents		(11)	0	0
Cash and Cash Equivalents, Period Increase (Decrease)		28,447	4,790	591
Cash and cash equivalents at beginning of period		5,781	991	400
Cash and cash equivalents at end of period		34,228	5,781	991
Payments for Repurchase of Common Stock				0
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Acquisitions, net of cash acquired		0	(5,250)	0
Net Cash Provided by (Used in) Operating Activities		79,458	81,248	151,991
Capital expenditures		(42,303)	(34,277)	(46,430)
Purchase of short term investments and equity securities		0	(71)	(5,065)
Sales and maturities of short-term investments		71	14	5,447
Proceeds from Discontinued Operations Sale of Assets and Other		208	(40)	768
Payments to Acquire Interest in Subsidiaries and Affiliates		120	0	3,488
CASH USED IN INVESTING ACTIVITIES		(41,904)	(39,624)	(41,792)
Issuance of notes and bank borrowings		3,500	14,784	0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(14,357)	(1,243)	(4,889)
Cash payments on gold production royalty		(39,235)	(48,395)	(57,034)
Proceeds From Repayment Intercompany Borrowings		29,575	(20,053)	(17,405)
Proceeds from (Payments for) Other Financing Activities		0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(20,517)	(54,907)	(79,328)
Effect of exchange rate changes on cash and cash equivalents		(1,393)	(621)	(500)
Cash and Cash Equivalents, Period Increase (Decrease)		15,644	(13,904)	30,371
Cash and cash equivalents at beginning of period		54,719	68,623	38,252
Cash and cash equivalents at end of period		70,363	54,719	68,623
Payments for Repurchase of Common Stock				0
Eliminations
Condensed Financial Statements, Captions [Line Items]
Acquisitions, net of cash acquired		0	0	0
Net Cash Provided by (Used in) Operating Activities		324,689	1,106,472	646,173
Capital expenditures		0	0	0
Purchase of short term investments and equity securities		0	0	0
Sales and maturities of short-term investments		0	0	0
Proceeds from Discontinued Operations Sale of Assets and Other		0	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates		(302,400)	(1,155,478)	(646,173)
CASH USED IN INVESTING ACTIVITIES		(302,400)	(1,155,478)	(646,173)
Issuance of notes and bank borrowings		0	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		(22,289)	49,006	0
Proceeds from (Payments for) Other Financing Activities		0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(22,289)	49,006	0
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
Payments for Repurchase of Common Stock				$ 0