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Stock Compensation Plans (Weighted-average remaining contractual lives of stock options outstanding) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Options Outstanding - Number Outstanding | 17,148
Options Outstanding - Weighted Average per Share Exercise Price | $ 22
Options Exercisable - Number Exercisable | 15,719
Options Exercisable - Weighted Average Per Share Exercise Price | $ 23
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 3 years 10 months 24 days
$0.01 to $11.00 [Member] |
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ 0.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit | $ 11
Options Outstanding - Number Outstanding | 2,504
Options Outstanding - Weighted Average per Share Exercise Price | $ 10
Options Exercisable - Number Exercisable | 2,063
Options Exercisable - Weighted Average Per Share Exercise Price | $ 11
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 5 years 6 months
$11.01 to $18.00 [Member] |
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ 11.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit | $ 18
Options Outstanding - Number Outstanding | 4,989
Options Outstanding - Weighted Average per Share Exercise Price | $ 12
Options Exercisable - Number Exercisable | 4,001
Options Exercisable - Weighted Average Per Share Exercise Price | $ 12
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 6 years 4 months 24 days
$18.01 to $25.00 [Member] |
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ 18.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit | $ 25
Options Outstanding - Number Outstanding | 3,271
Options Outstanding - Weighted Average per Share Exercise Price | $ 22
Options Exercisable - Number Exercisable | 3,271
Options Exercisable - Weighted Average Per Share Exercise Price | $ 22
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 1 year 1 month 6 days
$25.01 to $35.00 [Member] |
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ 25.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit | $ 35
Options Outstanding - Number Outstanding | 3,894
Options Outstanding - Weighted Average per Share Exercise Price | $ 31
Options Exercisable - Number Exercisable | 3,894
Options Exercisable - Weighted Average Per Share Exercise Price | $ 31
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 3 years
$35.01 to $60.00 [Member] |
Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit | $ 35.01
Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit | $ 60
Options Outstanding - Number Outstanding | 2,490
Options Outstanding - Weighted Average per Share Exercise Price | $ 42
Options Exercisable - Number Exercisable | 2,490
Options Exercisable - Weighted Average Per Share Exercise Price | $ 42
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term | 2 years 6 months

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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(c) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(a, 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
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph 64 -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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