Subsequent Events (Details) (Paramount Gold and Silver Corp. [Member], Subsequent Event [Member], USD $) Share data in Millions, unless otherwise specified	0 Months Ended
	Apr. 17, 2015	Apr. 17, 2015
Paramount Gold and Silver Corp. [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Right to convert into Coeur common stock, conversion ratio	0.2016
Shares issued as consideration	32.7
Long-term Debt	$ 8,500,000	$ 8,500,000
Payments to acquire newly issued stock	$ 1,500,000
Equity interest acquired	4.90%	4.90%