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Loans And Allowance For Loan Losses (Investment In Impaired Loans) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Loans And Allowance For Loan Losses [Abstract]    
Non-accrual loans $ 68,875 $ 75,482
Restructured loans (accruing) 63,816 63,773
Total impaired loans $ 132,691 $ 139,255