v2.4.0.6
Fair Value Accounting and Measurement (Financial Assets Accounted For Fair Value On Nonrecurring Basis) (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans $ 17,755 $ 65,226
Noncovered OREO 11,233 18,266
Covered OREO 2,442 1,422
Assets, Fair Value Disclosure 31,430 84,914
Losses During Period 9,574 18,324
Fair Value, Inputs, Level 1 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 0 0
Noncovered OREO 0 0
Covered OREO 0 0
Assets, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 2 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 0 0
Noncovered OREO 0 0
Covered OREO 0 0
Assets, Fair Value Disclosure 0 0
Fair Value, Inputs, Level 3 [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Impaired loans 17,755 65,226
Noncovered OREO 11,233 18,266
Covered OREO 2,442 1,422
Assets, Fair Value Disclosure 31,430 84,914
Impaired Loans [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Losses During Period 5,841 13,906
Noncovered Loans [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Losses During Period 3,089 4,155
Covered Loans [Member]
    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Losses During Period $ 644 $ 263