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Shareholders' Equity (Stock Options Outstanding And Exercisable) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of Shares	23,637	25,610	27,043	27,881
Weighted Average Exercise Price (Per Share)	$ 22.58	$ 20.81	$ 20.06	$ 20.42
Weighted Average Remaining Contractual Life (Years)	5 years 8 months 16 days
Number of Shares	14,601	9,760	11,680
Weighted Average Exercise Price (Per Share)	$ 19.45
Exercise Price $14.62-15.77 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range	$ 14.62
Upper range	$ 15.77
Number of Shares	5,498
Weighted Average Exercise Price (Per Share)	$ 15.13
Weighted Average Remaining Contractual Life (Years)	6 years 2 months 9 days
Number of Shares	4,304
Weighted Average Exercise Price (Per Share)	$ 14.95
Weighted Average Remaining Contractual Life (Years)	5 years 8 months 9 days
Exercise Price $17.65-19.28 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range	$ 17.65
Upper range	$ 19.28
Number of Shares	4,921
Weighted Average Exercise Price (Per Share)	$ 18.27
Weighted Average Remaining Contractual Life (Years)	4 years 6 months
Number of Shares	4,912
Weighted Average Exercise Price (Per Share)	$ 18.27
Weighted Average Remaining Contractual Life (Years)	4 years 5 months 27 days
Exercise Price $20.54-23.77 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range	$ 20.54
Upper range	$ 23.77
Number of Shares	4,051
Weighted Average Exercise Price (Per Share)	$ 22.08
Weighted Average Remaining Contractual Life (Years)	5 years 8 months 12 days
Number of Shares	2,858
Weighted Average Exercise Price (Per Share)	$ 21.92
Weighted Average Remaining Contractual Life (Years)	4 years 4 months 6 days
Exercise Price $23.86-29.61 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range	$ 23.86
Upper range	$ 29.61
Number of Shares	4,979
Weighted Average Exercise Price (Per Share)	$ 26.57
Weighted Average Remaining Contractual Life (Years)	5 years 1 month 17 days
Number of Shares	2,492
Weighted Average Exercise Price (Per Share)	$ 26.57
Weighted Average Remaining Contractual Life (Years)	5 years 1 month 2 days
Exercise Price $31.17-33.76 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower range	$ 31.17
Upper range	$ 33.76
Number of Shares	4,188
Weighted Average Exercise Price (Per Share)	$ 33.15
Weighted Average Remaining Contractual Life (Years)	7 years 2 months 19 days
Number of Shares	35
Weighted Average Exercise Price (Per Share)	$ 31.17
Weighted Average Remaining Contractual Life (Years)	4 years

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ 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

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X

- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ 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

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X

- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, 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

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901



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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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- Definition

Weighted average remaining contractual term for option awards outstanding, 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

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-Topic 718

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-Section 50

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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

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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 Accounting Standards Codification

-Topic 718

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