Shareholders' Equity (Summary Of Nonvested Restricted Share Activity) (Details) (Restricted Stock [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2012
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Shares Outstanding - Balance, beginning of period	585
Restricted Shares Outstanding - Granted	356
Restricted Shares Outstanding - Released	(122)
Restricted Shares Outstanding - Balance, end of period	819
Weighted Average Grant Date Fair Value - Balance, beginning of period	$ 12.98
Weighted Average Grant Date Fair Value - Granted	$ 12.28
Weighted Average Grant Date Fair Value - Released	$ 13.63
Weighted Average Grant Date Fair Value - Balance, end of period	$ 12.58

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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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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