XML 36 R52.htm IDEA: XBRL DOCUMENT ﻿
v2.3.0.11

STOCKHOLDERS' EQUITY: (Details) (USD $) | 1 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended | 9 Months Ended | 35 Months Ended |  |  | 6 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 30, 2011 | May 31, 2011 | Jun. 30, 2011 | Dec. 31, 2008 | Oct. 31, 2010 | Sep. 30, 2009 | Jun. 30, 2011 | Dec. 31, 2010 | Jun. 30, 2010 | Jun. 30, 2011 Southern Copper common shares | Jun. 30, 2010 Southern Copper common shares | Jun. 30, 2011 Employee stock purchase plan Parent Company (Grupo Mexico) common shares | Jun. 30, 2010 Employee stock purchase plan Parent Company (Grupo Mexico) common shares | Jun. 30, 2011 Parent Company (Grupo Mexico) common shares | Jun. 30, 2010 Parent Company (Grupo Mexico) common shares
Activity in treasury stock |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at the beginning of the period |  |  |  |  |  |  |  | $ 622,722,000 | $ 613,300,000 | $ 461,000,000 | $ 460,700,000 |  |  | $ 161,700,000 | $ 142,700,000
Purchase of shares | 147,500,000 | 500,000 | 148,000,000 | 384,700,000 | 500,000 | 71,900,000 | 605,100,000 |  |  | 148,000,000 | 400,000 |  |  |  |
Used for corporate purposes |  |  |  |  |  |  |  |  |  | (500,000) | (200,000) |  |  |  |
Other activity, including dividend, interest and currency translation effect |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,300,000 | 9,700,000
Balance at the end of the period | $ 784,481,000 |  | $ 784,481,000 |  |  |  | $ 784,481,000 | $ 622,722,000 | $ 613,300,000 | $ 608,500,000 | $ 460,900,000 |  |  | $ 176,000,000 | $ 152,400,000
Granted in the period (in shares) |  |  |  |  |  |  |  |  |  |  |  | 3,500,000 | 600,000 |  |

X
- Definition Represents the number of shares granted during the period under share based compensation arrangement. + Details
Name: | scco_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesGrantsInPeriod
Namespace Prefix: | scco
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Activity in treasury stock during the period of common shares in treasury. + Details
Name: | scco_TreasuryStockValueOtherActivityIncludingDividendInterestAndCurrencyTranslationEffect
Namespace Prefix: | scco
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | scco_TreasuryStockValueRollForward
Namespace Prefix: | scco
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the par value of shares of common and preferred stock retired from treasury during the period. This element is used only when Treasury Stock is accounted for under the cost versus the par value method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 1 -Section B -Paragraph 7 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_TreasuryStockRetiredCostMethodAmount
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Technical Bulletin (FTB) -Number 85-6 -Paragraph 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 + Details
Name: | us-gaap_TreasuryStockValue
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 1 -Section B -Paragraph 7 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration