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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
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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 |  |  |  |  |  |  |  |

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- Definition Derivative Average Gold Price In Excess Of Minimum Contractual Deduction Rate. + References No definition available. + Details
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- Details
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- Definition Fair value of foreign exchange contracts. + References No definition available. + Details
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- Definition Foreign exchange contracts of MXP. + References No definition available. + Details
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- Definition Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The average strike price on the group of price risk option contracts such as put options or call options. + References No definition available. + Details
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