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Share-Based Compensation (Summary Of Status Of Non-Vested Performance-Based Restricted Stock And Restricted Stock Units) (Details) (Performance-Based Restricted Stock And Restricted Stock Units [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Performance-Based Restricted Stock And Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested shares at December 31, 2011, Shares	5,134
Vested, Shares	(5,134)
Nonvested shares and share units at December 31, 2012, Shares	0
Nonvested shares at December 31, 2011, Weighted-average grant-date fair value	$ 8.67
Vested, Weighted-average grant-date fair value	$ 8.67
Nonvested shares and share units at December 31, 2012, Weighted-average grant-date fair value	$ 0.00

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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