Derivative Financial Instruments (Details)	Dec. 31, 2013 USD ($)	Dec. 31, 2013 MXN	Dec. 31, 2013 Palmarejo gold production royalty [Member] 2013 [Member] USD ($) oz	Dec. 31, 2013 Palmarejo gold production royalty [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Palmarejo gold production royalty [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Palmarejo gold production royalty [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] 2013 [Member] oz	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] 2014 [Member] MXN	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] 2015 [Member] MXN	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Mexican peso forward purchase contracts [Member] Thereafter [Member] MXN	Dec. 31, 2013 Mexico peso put options [Member] 2013 [Member] oz	Dec. 31, 2013 Mexico peso put options [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Mexico peso put options [Member] 2014 [Member] MXN	Dec. 31, 2013 Mexico peso put options [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Mexico peso put options [Member] 2015 [Member] MXN	Dec. 31, 2013 Mexico peso put options [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Mexico peso put options [Member] Thereafter [Member] MXN	Dec. 31, 2013 Mexico peso call options [Member] 2013 [Member] oz	Dec. 31, 2013 Mexico peso call options [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Mexico peso call options [Member] 2014 [Member] MXN	Dec. 31, 2013 Mexico peso call options [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Mexico peso call options [Member] 2015 [Member] MXN	Dec. 31, 2013 Mexico peso call options [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Mexico peso call options [Member] Thereafter [Member] MXN	Dec. 31, 2013 Silver concentrate sales agreements [Member] 2013 [Member] USD ($) oz	Dec. 31, 2013 Silver concentrate sales agreements [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Silver concentrate sales agreements [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Silver concentrate sales agreements [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Gold concentrates sales agreements [Member] 2013 [Member] USD ($) oz	Dec. 31, 2013 Gold concentrates sales agreements [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Gold concentrates sales agreements [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Gold concentrates sales agreements [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Gold put options purchased [Member] 2013 [Member] USD ($) oz	Dec. 31, 2013 Gold put options purchased [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Gold put options purchased [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Gold put options purchased [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2013 Gold call options sold [Member] 2013 [Member] USD ($) oz	Dec. 31, 2013 Gold call options sold [Member] 2014 [Member] USD ($) oz	Dec. 31, 2013 Gold call options sold [Member] 2015 [Member] USD ($) oz	Dec. 31, 2013 Gold call options sold [Member] Thereafter [Member] USD ($) oz	Dec. 31, 2012 Forward foreign exchange contracts [Member] Mexican peso forward purchase contracts [Member] USD ($)	Dec. 31, 2012 Forward foreign exchange contracts [Member] Mexican peso forward purchase contracts [Member] MXN	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexican peso forward purchase contracts [Member] 2013 [Member] USD ($)	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexican peso forward purchase contracts [Member] 2013 [Member] MXN	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexico peso put options [Member] 2013 [Member] USD ($)	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexico peso put options [Member] 2013 [Member] MXN	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexico peso call options [Member] 2013 [Member] USD ($)	Dec. 31, 2013 Forward foreign exchange contracts [Member] Mexico peso call options [Member] 2013 [Member] MXN
Derivative instruments Settlement
Derivative, notional amount			$ 29,831,000	$ 24,764,000	$ 15,141,000	$ 0																						$ 3,645,000	$ 0	$ 0	$ 0	$ 38,760,000	$ 0	$ 0	$ 0	$ 274,000	$ 0	$ 0	$ 0	$ 238,000	$ 0	$ 0	$ 0
Derivative average gold price in excess of minimum contractual Deduction Rate	400		498	0	0	0
Notional ounces			59,856	50,153	30,922	0	146,460	0	0	0	0	0	0	567,150,000	0	0	0	0	0	0	666,075,000	0	0	0	0	0	0	173,752	0	0	0	30,780	0	0	0	25,000	0	0	0	1,250,000	0	0	0
Foreign exchange contracts of MXP																																												26,100,000		12,000,000		45,000,000		45,000,000
Fair value of foreign exchange contracts								$ 0		$ 0		$ 0			$ 0		$ 0		$ 0			$ 0		$ 0		$ 0
Average rate (MXP/$)		14.80							0.00		0		0			0		0		0			0		0		0																		13.11		12.21		12,600		14,800
Derivative average price																												20.98	0	0	0	1,259	0	0	0
Average strike price																																				1,150	0	0	0	17.00	0	0	0