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Stock-Based Compensation (Stock-Based Compensation Expense And Related Income Tax Benefit Recognized) (Details) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Pre-tax compensation expense		$ (400)
Stock Options [Member]
Pre-tax compensation expense	92	(233)	260	(2)
Tax benefit	38	(97)	107	(1)
Stock expense, net of tax	54	(136)	153	(1)
Restricted Stock [Member]
Pre-tax compensation expense	446	255	887	508
Tax benefit	184	106	366	212
Stock expense, net of tax	$ 262	$ 149	$ 521	$ 296

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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