Loans And Related Allowances For Loan Losses (Average Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Financing Receivable, Impaired [Line Items]        
Average Investment $ 51,190 $ 72,783 $ 54,734 $ 69,390
Interest income recognized on an accrual basis 257 331 545 676
Interest income recognized on a cash basis 21 201 39 201
Commercial real estate- non owner-occupied [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 7,467 15,140 8,170 14,366
Interest income recognized on an accrual basis 6 16 12 35
Interest income recognized on a cash basis 0 61 0 61
Commercial real estate- all other CRE [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 8,483 7,345 8,110 6,048
Interest income recognized on an accrual basis 54 61 134 130
Interest income recognized on a cash basis 0 50 0 50
Acquisition and development- 1-4 family residential construction [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 2,282 2,874 2,351 3,064
Interest income recognized on an accrual basis 22 26 46 53
Interest income recognized on a cash basis 0 0 0 0
Acquisition and development- All other A&D [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 22,759 26,508 22,909 26,922
Interest income recognized on an accrual basis 102 145 207 290
Interest income recognized on a cash basis 0 81 0 81
Commercial and industrial [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 4,009 13,927 7,022 10,995
Interest income recognized on an accrual basis 38 39 72 77
Interest income recognized on a cash basis 0 0 0 0
Residential mortgage- term [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 5,151 6,215 5,112 7,254
Interest income recognized on an accrual basis 32 41 67 84
Interest income recognized on a cash basis 21 6 36 6
Residential mortgage- home equity [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 979 741 1,013 668
Interest income recognized on an accrual basis 3 3 7 7
Interest income recognized on a cash basis 0 3 3 3
Consumer [Member]
       
Financing Receivable, Impaired [Line Items]        
Average Investment 60 33 47 73
Interest income recognized on an accrual basis 0 0 0 0
Interest income recognized on a cash basis $ 0 $ 0 $ 0 $ 0