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Stock-Based Compensation And Employee Benefit Plans (Accumulated Benefit Obligation And Aggregate Market Value Of Life Insurance Policies) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Stock-Based Compensation And Employee Benefit Plans [Abstract]    
Accumulated benefit obligation $ 3,448 $ 2,915
Aggregate market value $ 3,147 $ 2,663