Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	$ 6,617	$ (3,449)
Capital expenditures	(22,172)	(17,620)
Purchase of short term investments and equity securities	(7)	(278)
Sales and maturities of short-term investments	997	229
Acquisitions, net of cash acquired	0	(102,018)
Proceeds from Discontinued Operations Sale of Assets and Other	2,536	(1,730)
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0
CASH USED IN INVESTING ACTIVITIES	(18,646)	(121,417)
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(5,971)	(8,594)
Cash payments on gold production royalty	(9,131)
Proceeds From Repayment Intercompany Borrowings	0	0
Proceeds from (Payments for) Other Financing Activities	(280)	(423)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(15,382)	34,115
Effect of exchange rate changes on cash and cash equivalents	86	(523)
Cash and Cash Equivalents, Period Increase (Decrease)	(27,325)	(91,274)
Cash and cash equivalents at beginning of period	200,714	270,861
Cash and cash equivalents at end of period	173,389	179,587
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	(28,642)	(44,918)
Capital expenditures	(46)	(12)
Purchase of short term investments and equity securities	(7)	(278)
Sales and maturities of short-term investments	501	0
Acquisitions, net of cash acquired		(103,000)
Proceeds from Discontinued Operations Sale of Assets and Other	(1,539)	(1,767)
Payments to Acquire Interest in Subsidiaries and Affiliates	3,420	12,221
CASH USED IN INVESTING ACTIVITIES	2,329	(92,836)
Issuance of notes and bank borrowings		50,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(250)	(6,582)
Cash payments on gold production royalty	0	0
Proceeds From Repayment Intercompany Borrowings	(7,879)	(1,730)
Proceeds from (Payments for) Other Financing Activities	(280)	(423)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(8,409)	41,265
Effect of exchange rate changes on cash and cash equivalents	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	(34,722)	(96,489)
Cash and cash equivalents at beginning of period	96,123	210,361
Cash and cash equivalents at end of period	61,401	113,872
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	21,460	29,908
Capital expenditures	(12,790)	(7,399)
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	496	145
Acquisitions, net of cash acquired		0
Proceeds from Discontinued Operations Sale of Assets and Other	4,107	0
Payments to Acquire Interest in Subsidiaries and Affiliates	8,179	(810)
CASH USED IN INVESTING ACTIVITIES	(8)	(8,064)
Issuance of notes and bank borrowings		0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(830)	(1,818)
Cash payments on gold production royalty	0	0
Proceeds From Repayment Intercompany Borrowings	(24,965)	(19,628)
Proceeds from (Payments for) Other Financing Activities	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(25,795)	(21,446)
Effect of exchange rate changes on cash and cash equivalents	4	0
Cash and Cash Equivalents, Period Increase (Decrease)	(4,339)	398
Cash and cash equivalents at beginning of period	34,228	5,781
Cash and cash equivalents at end of period	29,889	6,179
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	10,210	(643)
Capital expenditures	(9,336)	(10,209)
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	0	84
Acquisitions, net of cash acquired		982
Proceeds from Discontinued Operations Sale of Assets and Other	(32)	37
Payments to Acquire Interest in Subsidiaries and Affiliates	0	0
CASH USED IN INVESTING ACTIVITIES	(9,368)	(9,106)
Issuance of notes and bank borrowings		3,500
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	(4,891)	(194)
Cash payments on gold production royalty	(9,131)	(10,368)
Proceeds From Repayment Intercompany Borrowings	24,834	21,358
Proceeds from (Payments for) Other Financing Activities	0	793
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	10,812	15,089
Effect of exchange rate changes on cash and cash equivalents	82	(523)
Cash and Cash Equivalents, Period Increase (Decrease)	11,736	4,817
Cash and cash equivalents at beginning of period	70,363	54,719
Cash and cash equivalents at end of period	82,099	59,536
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities	3,589	12,204
Capital expenditures	0	0
Purchase of short term investments and equity securities	0	0
Sales and maturities of short-term investments	0	0
Acquisitions, net of cash acquired		0
Proceeds from Discontinued Operations Sale of Assets and Other	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates	(11,599)	(11,411)
CASH USED IN INVESTING ACTIVITIES	(11,599)	(11,411)
Issuance of notes and bank borrowings		0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	0	0
Cash payments on gold production royalty	0	0
Proceeds From Repayment Intercompany Borrowings	8,010	0
Proceeds from (Payments for) Other Financing Activities	0	(793)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	8,010	(793)
Effect of exchange rate changes on cash and cash equivalents	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	$ 0	$ 0