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SEGMENT AND RELATED INFORMATION: (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 segment | Mar. 31, 2012 | Dec. 31, 2012
SEGMENT AND RELATED INFORMATION: |  |  |
Number of reportable segments | 3 |  |
Financial information relating to segments |  |  |
Net sales outside of segments | $ 1,623,000,000 | $ 1,805,900,000 |
Cost of sales (exclusive of depreciation, amortization and depletion) | 726,682,000 | 721,927,000 |
Selling, general and administrative | 25,374,000 | 25,431,000 |
Depreciation, amortization and depletion | 90,572,000 | 76,944,000 |
Exploration | 10,324,000 | 8,725,000 |
Operating income | 770,050,000 | 972,909,000 |
Interest, net | (47,100,000) | (40,500,000) |
Other income (expense) | 848,000 | 7,235,000 |
Income taxes | (234,946,000) | (318,769,000) |
Equity earnings of affiliate | 8,163,000 | 2,654,000 |
Non-controlling interest | (1,641,000) | (2,132,000) |
Net income attributable to SCC | 495,392,000 | 621,430,000 |
Capital expenditures | 316,800,000 | 177,400,000 |
Property, net | 5,349,196,000 | 4,495,900,000 | 5,156,731,000
Total assets | 10,776,869,000 | 8,493,900,000 | 10,383,749,000
Mexican Open-pit |  |  |
Financial information relating to segments |  |  |
Net sales outside of segments | 862,600,000 | 878,800,000 |
Cost of sales (exclusive of depreciation, amortization and depletion) | 380,700,000 | 319,600,000 |
Selling, general and administrative | 8,800,000 | 8,700,000 |
Depreciation, amortization and depletion | 40,200,000 | 33,600,000 |
Exploration | 900,000 | 700,000 |
Operating income | 432,000,000 | 516,200,000 |
Capital expenditures | 250,600,000 | 135,100,000 |
Property, net | 2,694,000,000 | 1,913,700,000 |
Total assets | 4,647,700,000 | 3,849,700,000 |
Mexican IMMSA Unit |  |  |
Financial information relating to segments |  |  |
Net sales outside of segments | 89,900,000 | 100,600,000 |
Intersegment sales | 32,000,000 | 37,900,000 |
Cost of sales (exclusive of depreciation, amortization and depletion) | 73,100,000 | 75,500,000 |
Selling, general and administrative | 3,800,000 | 3,600,000 |
Depreciation, amortization and depletion | 6,700,000 | 6,300,000 |
Exploration | 6,100,000 | 6,200,000 |
Operating income | 32,200,000 | 46,900,000 |
Capital expenditures | 17,900,000 | 14,400,000 |
Property, net | 359,700,000 | 327,700,000 |
Total assets | 892,700,000 | 764,500,000 |
Peruvian Operations |  |  |
Financial information relating to segments |  |  |
Net sales outside of segments | 670,500,000 | 826,500,000 |
Cost of sales (exclusive of depreciation, amortization and depletion) | 316,900,000 | 359,200,000 |
Selling, general and administrative | 12,100,000 | 12,500,000 |
Depreciation, amortization and depletion | 41,400,000 | 39,000,000 |
Exploration | 3,300,000 | 1,800,000 |
Operating income | 296,800,000 | 414,000,000 |
Capital expenditures | 39,300,000 | 27,900,000 |
Property, net | 2,213,900,000 | 2,204,000,000 |
Total assets | 3,425,100,000 | 3,170,500,000 |
Corporate and other eliminations |  |  |
Financial information relating to segments |  |  |
Intersegment sales | (32,000,000) | (37,900,000) |
Cost of sales (exclusive of depreciation, amortization and depletion) | (44,000,000) | (32,400,000) |
Selling, general and administrative | 700,000 | 600,000 |
Depreciation, amortization and depletion | 2,300,000 | (2,000,000) |
Operating income | 9,000,000 | (4,100,000) |
Capital expenditures | 9,000,000 |  |
Property, net | 81,600,000 | 50,500,000 |
Total assets | $ 1,811,400,000 | $ 709,200,000 |

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