Stock-Based Compensation Plans (Schedule Of Restricted Stock Units Award Activity) (Details) - Restricted Stock Awards [Member] - $ / shares shares in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted	181	88	729	511
Restricted stock awards granted, weighted average exercise price	$ 15.97	$ 52.73	$ 23.29	$ 65.43
Incentive Plans [Member] \| Non-Executive Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted	181	88	620	464
Restricted stock awards granted, weighted average exercise price	$ 15.97	$ 52.73	$ 22.78	$ 65.35
Incentive Plans [Member] \| Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted			85	30
Restricted stock awards granted, weighted average exercise price			$ 27.50	$ 75.76
2004 Director Plan [Member] \| Non-Employee Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted			24	17
Restricted stock awards granted, weighted average exercise price			$ 22.61	$ 49.26

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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)(2)(iii)(1)

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

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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