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INVENTORIES: (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2015 | Mar. 31, 2014 | Dec. 31, 2014
Metals at lower of average cost or market: |  |  |
Finished goods | $ 89,100,000 us-gaap_InventoryFinishedGoodsNetOfReserves |  | $ 84,600,000 us-gaap_InventoryFinishedGoodsNetOfReserves
Work-in-process | 440,800,000 us-gaap_InventoryWorkInProcessNetOfReserves |  | 450,500,000 us-gaap_InventoryWorkInProcessNetOfReserves
Supplies at average cost | 313,000,000 us-gaap_InventorySuppliesNetOfReserves |  | 301,400,000 us-gaap_InventorySuppliesNetOfReserves
Total current inventory | 842,925,000 us-gaap_InventoryNet |  | 836,464,000 us-gaap_InventoryNet
Inventory, long-term: |  |  |
Leach stockpiles | 560,956,000 us-gaap_InventoryOreStockpilesOnLeachPads |  | 512,718,000 us-gaap_InventoryOreStockpilesOnLeachPads
Leaching costs capitalized as long-term inventory of leachable material | 104,600,000 scco_InventoryOreStockpilesOnLeachPadsCapitalizedCosts | 86,100,000 scco_InventoryOreStockpilesOnLeachPadsCapitalizedCosts |
Leachable material inventories recognized in cost of sales | $ 50,600,000 scco_InventoryOreStockpilesOnLeachPadsRecognizedAsCostOfSales | $ 39,200,000 scco_InventoryOreStockpilesOnLeachPadsRecognizedAsCostOfSales |

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- Definition Represents the costs recognized under cost of sales of ore stockpile material contained on a leach pad, such as copper or gold ore. + References No definition available. + Details
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.BB) -URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section BB + Details
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- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.BB) -URI http://asc.fasb.org/extlink&oid=27011343&loc=d3e100047-122729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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