Commitments and Contigencies (Details Textual) - USD ($)		3 Months Ended			9 Months Ended
		Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019	Oct. 02, 2014
Business Acquisition [Line Items]
Palmarejo Gold Stream Agreement, Deferred Revenue Unamortized Balance		$ 8,500,000			$ 8,500,000
Deferred Revenue Recognized		307,000		$ 5,485,000	15,908,000	$ 21,167,000
Payment for Contingent Consideration Liability, Financing Activities		0		0	0	18,750,000
Common stock issued for investment			$ 118,777,000
Value Added Tax Receivable, Noncurrent	[1]	0			0		$ 26,447,000
Surety Bonds Outstanding		314,500,000			314,500,000		311,900,000
Valued added tax write-down		25,982,000		0	25,982,000	0
Palmarejo gold production royalty
Business Acquisition [Line Items]
Production to be sold, percent										50.00%
Price per ounce under agreement										$ 800
Aggregate deposit to be received										$ 22,000,000
Kensington
Business Acquisition [Line Items]
Deferred Revenue Recognized		7,500,000		5,200,000	(22,500,000)	(20,210,000)
Revenue liability		7,599,000	15,004,000	$ 9,914,000	7,599,000	$ 9,914,000	15,003,000	$ 15,006,000	$ 15,010,000
Kensington | December 2020 Prepayment [Member]
Business Acquisition [Line Items]
Deferred Revenue Recognized					15,000,000
Revenue liability			15,000,000				$ 15,000,000
Kensington | June 2021 Prepayment
Business Acquisition [Line Items]
Deferred Revenue Recognized					7,500,000
Revenue liability		$ 7,600,000	$ 15,000,000		$ 7,600,000

[1] (1) Represents VAT that was paid to the Mexican government associated with Coeur Mexicana’s prior royalty agreement with a subsidiary of Franco-Nevada Corporation. While the Company continues to pursue recovery from the Mexican government (including through ongoing litigation and potential international arbitration), the Company wrote down the carrying value of the receivable at September 30, 2021. See Note 17 -- Commitments and Contingencies for additional detail.