Supplemental Guarantor Information Condensed Consolidated Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019		Jun. 30, 2018
Condensed Financial Statements, Captions [Line Items]
Cash provided by (used in) activities of continuing operations	$ 26,435	$ (1,294)	$ 10,589		$ 14,247
Cash provided by (used in) activities of discontinued operations	0	0	0		(2,690)
Cash provided by (used in) operating activities	26,435	(1,294)	10,589		11,557
Capital expenditures	(20,749)	(41,165)	(48,187)		(83,510)
Proceeds from the sale of assets	57	96	904		156
Purchase of investments	0	(39)	0		(400)
Sales of investments	1,102	11,141	1,102		12,760
Proceeds from Collection of Notes Receivable	2,000	0	7,168		0
Other	277	(33)	2,018		(98)
Investments in consolidated subsidiaries	0	0	0		0
Cash provided by (used in) activities of continuing operations	(17,313)	(30,000)	(36,995)		(71,092)
Cash provided by (used in) activities of discontinued operations	0	0	0		(28,470)
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(17,313)	(30,000)	(36,995)		(99,562)
Issuance of notes and bank borrowings, net of issuance costs	0	0	15,000		15,000
Payments on debt, capital leases, and associated costs	(90,812)	(4,373)	(113,273)		(22,822)
Net intercompany financing activity	0	0	0		0
Proceeds from Issuance of Common Stock	48,887	0	48,887		0
Other	0	(233)	(3,259)		(4,839)
Cash provided by (used in) activities of continuing operations	(41,925)	(4,606)	(52,645)		(12,661)
Cash provided by (used in) activities of discontinued operations	0	0	0		(22)
Cash provided by (used in) activities of discontinued operations	(41,925)	(4,606)	(52,645)		(12,683)
Effect of exchange rate changes on cash and cash equivalents	56	(175)	257		382
Less net cash provided by (used in) discontinued operations	0	0	0	[1]	(32,930)	[1]
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(32,747)	(36,075)	(78,794)		(67,376)
Cash, cash equivalents and restricted cash at beginning of period	72,022	172,101	118,069		203,402
Cash, cash equivalents and restricted cash at end of period	39,275	136,026	39,275		136,026
Eliminations
Condensed Financial Statements, Captions [Line Items]
Cash provided by (used in) activities of continuing operations					(18,718)
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) operating activities	24,049	(14,762)	45,199		(18,718)
Capital expenditures	0	0	0		0
Proceeds from the sale of assets	0	0	0		0
Purchase of investments		0			0
Sales of investments	0	0	0		0
Proceeds from Collection of Notes Receivable	0		0
Other	0	0	0		0
Investments in consolidated subsidiaries	(24,049)	14,762	(45,199)		18,718
Cash provided by (used in) activities of continuing operations					18,718
Cash provided by (used in) activities of discontinued operations					0
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(24,049)	14,762	(45,199)		18,718
Issuance of notes and bank borrowings, net of issuance costs			0		0
Payments on debt, capital leases, and associated costs	0	0	0		0
Net intercompany financing activity	0	0	0		0
Proceeds from Issuance of Common Stock	0		0
Other		0	0		0
Cash provided by (used in) activities of continuing operations					0
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) activities of discontinued operations	0	0	0		0
Effect of exchange rate changes on cash and cash equivalents	0	0	0		0
Less net cash provided by (used in) discontinued operations					0
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	0	0	0		0
Cash, cash equivalents and restricted cash at beginning of period	0	0	0		0
Cash, cash equivalents and restricted cash at end of period	0	0	0		0
Coeur Mining, Inc.
Condensed Financial Statements, Captions [Line Items]
Cash provided by (used in) activities of continuing operations					425
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) operating activities	(43,768)	8,363	(78,163)		425
Capital expenditures	(72)	(101)	(110)		(184)
Proceeds from the sale of assets	0	23	0		23
Purchase of investments		(39)			(400)
Sales of investments	1,102	10,753	1,102		11,820
Proceeds from Collection of Notes Receivable	2,000		7,168
Other	230	(79)	2,032		(79)
Investments in consolidated subsidiaries	23,725	(15,037)	44,740		(19,199)
Cash provided by (used in) activities of continuing operations					(8,019)
Cash provided by (used in) activities of discontinued operations					0
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	26,985	(4,480)	54,932		(8,019)
Issuance of notes and bank borrowings, net of issuance costs			15,000		15,000
Payments on debt, capital leases, and associated costs	(82,702)	0	(97,807)		0
Net intercompany financing activity	41,479	(13,987)	51,705		(34,368)
Proceeds from Issuance of Common Stock	48,887		48,887
Other		(233)	(3,259)		(4,839)
Cash provided by (used in) activities of continuing operations					(24,207)
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) activities of discontinued operations	7,664	(14,220)	14,526		(24,207)
Effect of exchange rate changes on cash and cash equivalents	0	0			0
Less net cash provided by (used in) discontinued operations					0
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(9,119)	(10,337)	(8,705)		(31,801)
Cash, cash equivalents and restricted cash at beginning of period	13,162	34,569	12,748		56,033
Cash, cash equivalents and restricted cash at end of period	4,043	24,232	4,043		24,232
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash provided by (used in) activities of continuing operations					26,115
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) operating activities	43,095	20,720	51,563		26,115
Capital expenditures	(7,820)	(12,537)	(22,251)		(26,878)
Proceeds from the sale of assets	57	73	810		133
Purchase of investments		0			0
Sales of investments	0	388	0		940
Proceeds from Collection of Notes Receivable	0		0
Other	113	109	113		109
Investments in consolidated subsidiaries	85	28	85		65
Cash provided by (used in) activities of continuing operations					(25,631)
Cash provided by (used in) activities of discontinued operations					0
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(7,565)	(11,939)	(21,243)		(25,631)
Issuance of notes and bank borrowings, net of issuance costs			0		0
Payments on debt, capital leases, and associated costs	(5,753)	(2,532)	(10,140)		(4,927)
Net intercompany financing activity	(30,949)	3,354	(36,306)		(7,592)
Proceeds from Issuance of Common Stock	0		0
Other		0	0		0
Cash provided by (used in) activities of continuing operations					(12,519)
Cash provided by (used in) activities of discontinued operations					0
Cash provided by (used in) activities of discontinued operations	(36,702)	822	(46,446)		(12,519)
Effect of exchange rate changes on cash and cash equivalents	(1)	(6)	2		(4)
Less net cash provided by (used in) discontinued operations					0
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(1,173)	9,597	(16,124)		(12,039)
Cash, cash equivalents and restricted cash at beginning of period	10,581	30,603	25,532		52,239
Cash, cash equivalents and restricted cash at end of period	9,408	40,200	9,408		40,200
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Cash provided by (used in) activities of continuing operations					6,425
Cash provided by (used in) activities of discontinued operations					(2,690)
Cash provided by (used in) operating activities	3,059	(15,615)	(8,010)		3,735
Capital expenditures	(12,857)	(28,527)	(25,826)		(56,448)
Proceeds from the sale of assets	0	0	94		0
Purchase of investments		0			0
Sales of investments	0	0	0		0
Proceeds from Collection of Notes Receivable	0		0
Other	(66)	(63)	(127)		(128)
Investments in consolidated subsidiaries	239	247	374		416
Cash provided by (used in) activities of continuing operations					(56,160)
Cash provided by (used in) activities of discontinued operations					(28,470)
CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES	(12,684)	(28,343)	(25,485)		(84,630)
Issuance of notes and bank borrowings, net of issuance costs			0		0
Payments on debt, capital leases, and associated costs	(2,357)	(1,841)	(5,326)		(17,895)
Net intercompany financing activity	(10,530)	10,633	(15,399)		41,960
Proceeds from Issuance of Common Stock	0		0
Other		0	0		0
Cash provided by (used in) activities of continuing operations					24,065
Cash provided by (used in) activities of discontinued operations					(22)
Cash provided by (used in) activities of discontinued operations	(12,887)	8,792	(20,725)		24,043
Effect of exchange rate changes on cash and cash equivalents	57	(169)	255		386
Less net cash provided by (used in) discontinued operations					(32,930)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(22,455)	(35,335)	(53,965)		(23,536)
Cash, cash equivalents and restricted cash at beginning of period	48,279	106,929	79,789		95,130
Cash, cash equivalents and restricted cash at end of period	$ 25,824	$ 71,594	$ 25,824		$ 71,594

[1] Less net cash used in discontinued operations includes the following cash transactions: net subsidiary payments to parent company of $1,748, during the six months ended