Acquisitions (Details 2) - Apr. 17, 2015 - Paramount Gold and Silver Corp. [Member] $ in Thousands	USD ($)
Business Acquisition [Line Items]
Right to convert into Coeur common stock, conversion ratio	0.2016
Payments to acquire business	$ 8,530
Payments to acquire newly issued stock	$ 1,500
Equity interest acquired (as a percent)	4.90%