Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		$ 47,812	$ 36,770	$ 100,368	$ 70,325
Capital expenditures		(25,627)	(23,861)	(71,087)	(65,158)
Proceeds from Sale of Property, Plant, and Equipment		4,802	333	16,104	498
Purchase of short term investments and equity securities		(21)	(3)	(120)	(1,876)
Sales and maturities of short-term investments		5,432	60	7,077	529
Acquisitions, net of cash acquired		(1,427)	(122)	(1,427)	(111,290)
Proceeds from Discontinued Operations Sale of Assets and Other		(1,299)	7	(4,218)	(1,836)
Payments to Acquire Interest in Subsidiaries and Affiliates		0	0	0	0
CASH USED IN INVESTING ACTIVITIES		(18,140)	(23,586)	(53,671)	(179,133)
Proceeds from Issuance of Unsecured Debt		0	0	0	153,500
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(107,868)	(2,618)	(120,551)	(77,838)
Cash payments on gold production royalty		(7,563)	(10,159)	(27,155)	(30,281)
Proceeds From Repayment Intercompany Borrowings		0	0	0	0
Proceeds from Issuance of Common Stock	$ 53,400	49,513	0	122,584	0
Proceeds from (Payments for) Other Financing Activities		1,051	(34)	323	(529)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(64,867)	(12,811)	(24,799)	44,852
Effect of exchange rate changes on cash and cash equivalents		121	(533)	(95)	(1,197)
Cash and cash equivalents at beginning of period		257,591	205,868	200,714	270,861
Cash and cash equivalents at end of period	222,517	222,517	205,708	222,517	205,708
Cash and Cash Equivalents, Period Increase (Decrease)		(35,074)	(160)	21,803	(65,153)
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		101,581	(20,565)	98,323	(73,276)
Capital expenditures		(62)	(94)	(196)	(181)
Proceeds from Sale of Property, Plant, and Equipment		2	0	2	0
Purchase of short term investments and equity securities		(5)	(3)	(104)	(1,876)
Sales and maturities of short-term investments		2	0	501	12
Acquisitions, net of cash acquired		0	(122)	0	(111,290)
Proceeds from Discontinued Operations Sale of Assets and Other		(1,245)	(1)	(4,383)	(1,767)
Payments to Acquire Interest in Subsidiaries and Affiliates		117,911	(1,206)	138,843	14,477
CASH USED IN INVESTING ACTIVITIES		(119,219)	986	(143,023)	(129,579)
Proceeds from Issuance of Unsecured Debt			0		150,000
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(104,165)	(711)	(104,665)	(62,579)
Cash payments on gold production royalty		0	0	0	0
Proceeds From Repayment Intercompany Borrowings		39,297	9,333	26,196	19,306
Proceeds from Issuance of Common Stock		49,513		122,584
Proceeds from (Payments for) Other Financing Activities		1,051	(34)	323	(529)
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(14,304)	8,588	44,438	106,198
Effect of exchange rate changes on cash and cash equivalents		0	0	0	0
Cash and cash equivalents at beginning of period		127,803	124,695	96,123	210,361
Cash and cash equivalents at end of period	95,861	95,861	113,704	95,861	113,704
Cash and Cash Equivalents, Period Increase (Decrease)		(31,942)	(10,991)	(262)	(96,657)
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		48,791	28,924	101,368	80,313
Capital expenditures		(12,550)	(11,468)	(38,272)	(30,791)
Proceeds from Sale of Property, Plant, and Equipment		560	42	4,601	187
Purchase of short term investments and equity securities		(16)	0	(16)	0
Sales and maturities of short-term investments		5,430	60	6,576	446
Acquisitions, net of cash acquired		0	0	0	0
Proceeds from Discontinued Operations Sale of Assets and Other		(7)	2	294	25
Payments to Acquire Interest in Subsidiaries and Affiliates		(1,356)	(3,666)	(25,516)	(4,490)
CASH USED IN INVESTING ACTIVITIES		(5,227)	(7,698)	(1,301)	(25,643)
Proceeds from Issuance of Unsecured Debt			0		0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(2,498)	(1,889)	(9,001)	(5,592)
Cash payments on gold production royalty		0	0	0	0
Proceeds From Repayment Intercompany Borrowings		(42,679)	(24,940)	(73,364)	(33,203)
Proceeds from Issuance of Common Stock		0		0
Proceeds from (Payments for) Other Financing Activities		0	0		0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(45,177)	(26,829)	(82,365)	(38,795)
Effect of exchange rate changes on cash and cash equivalents		0	0	5	0
Cash and cash equivalents at beginning of period		53,548	27,259	34,228	5,781
Cash and cash equivalents at end of period	51,935	51,935	21,656	51,935	21,656
Cash and Cash Equivalents, Period Increase (Decrease)		(1,613)	(5,603)	17,707	15,875
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		21,586	31,538	53,180	51,102
Capital expenditures		(13,015)	(12,299)	(32,619)	(34,186)
Proceeds from Sale of Property, Plant, and Equipment		4,240	291	11,501	311
Purchase of short term investments and equity securities		0	0	0	0
Sales and maturities of short-term investments		0	0	0	71
Acquisitions, net of cash acquired		(1,427)	0	(1,427)	0
Proceeds from Discontinued Operations Sale of Assets and Other		(47)	6	(129)	(94)
Payments to Acquire Interest in Subsidiaries and Affiliates		0	(1)	0	(117)
CASH USED IN INVESTING ACTIVITIES		(10,249)	(12,001)	(22,674)	(33,781)
Proceeds from Issuance of Unsecured Debt			0		3,500
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		(1,205)	(18)	(6,885)	(9,667)
Cash payments on gold production royalty		(7,563)	(10,159)	(27,155)	(30,281)
Proceeds From Repayment Intercompany Borrowings		(4,209)	7,607	7,992	35,953
Proceeds from Issuance of Common Stock		0		0
Proceeds from (Payments for) Other Financing Activities		0	0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		(12,977)	(2,570)	(26,048)	(495)
Effect of exchange rate changes on cash and cash equivalents		121	(533)	(100)	(1,197)
Cash and cash equivalents at beginning of period		76,240	53,914	70,363	54,719
Cash and cash equivalents at end of period	74,721	74,721	70,348	74,721	70,348
Cash and Cash Equivalents, Period Increase (Decrease)		(1,519)	16,434	4,358	15,629
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(124,146)	(3,127)	(152,503)	12,186
Capital expenditures		0	0	0	0
Proceeds from Sale of Property, Plant, and Equipment		0	0	0	0
Purchase of short term investments and equity securities		0	0	0	0
Sales and maturities of short-term investments		0	0	0	0
Acquisitions, net of cash acquired		0	0	0	0
Proceeds from Discontinued Operations Sale of Assets and Other		0	0	0	0
Payments to Acquire Interest in Subsidiaries and Affiliates		(116,555)	4,873	(113,327)	(9,870)
CASH USED IN INVESTING ACTIVITIES		116,555	(4,873)	113,327	9,870
Proceeds from Issuance of Unsecured Debt			0		0
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities		0	0	0	0
Cash payments on gold production royalty		0	0	0	0
Proceeds From Repayment Intercompany Borrowings		7,591	8,000	39,176	(22,056)
Proceeds from Issuance of Common Stock		0		0
Proceeds from (Payments for) Other Financing Activities		0	0	0	0
CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		7,591	8,000	39,176	(22,056)
Effect of exchange rate changes on cash and cash equivalents		0	0	0	0
Cash and cash equivalents at beginning of period		0	0	0	0
Cash and cash equivalents at end of period	$ 0	0	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)		$ 0	$ 0	$ 0	$ 0