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Segment Reporting Narrative (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Segment Reporting Information [Line Items] |  |  |
Sales Revenue, Goods, Net | $ 635,742 us-gaap_SalesRevenueGoodsNet | $ 745,994 us-gaap_SalesRevenueGoodsNet | $ 895,492 us-gaap_SalesRevenueGoodsNet
Silver [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Sales Revenue, Goods, Net | 328,500 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_SilverMember | 394,500 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_SilverMember | 549,700 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_SilverMember
Gold [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Sales Revenue, Goods, Net | $ 304,000 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_GoldMember | $ 351,500 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_GoldMember | $ 345,800 us-gaap_SalesRevenueGoodsNet / us-gaap_ProductOrServiceAxis = cde_GoldMember
Dore [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Trading Counterparties | 7 cde_NumberofTradingCounterparties / us-gaap_ProductOrServiceAxis = cde_DoreMember |  |
Smelting and Refining [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Number of Trading Counterparties | 7 cde_NumberofTradingCounterparties / us-gaap_ProductOrServiceAxis = cde_SmeltingandRefiningMember |  |
Sales [Member] | Dore [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration Risk, Percentage | 63.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_DoreMember | 72.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_DoreMember | 91.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_DoreMember
Sales [Member] | Smelting and Refining [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Concentration Risk, Percentage | 37.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_SmeltingandRefiningMember | 28.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_SmeltingandRefiningMember | 9.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_ProductOrServiceAxis = cde_SmeltingandRefiningMember

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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