Loans And Related Allowances For Loan Losses (Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment $ 9,872 $ 20,048
Impaired Loans with Specific Allowance: Related Allowance 1,767 3,951
Impaired Loans with No Specific Allowance: Recorded Investment 49,411 41,778
Total Impaired Loans: Recorded Investment 59,283 61,826
Unpaid Principal Balance 67,585 72,279
Commercial real estate- non owner-occupied [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 448
Impaired Loans with Specific Allowance: Related Allowance 0 92
Impaired Loans with No Specific Allowance: Recorded Investment 6,367 9,129
Total Impaired Loans: Recorded Investment 6,367 9,577
Unpaid Principal Balance 9,870 14,765
Commercial real estate- all other CRE [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 2,311 0
Impaired Loans with Specific Allowance: Related Allowance 183 0
Impaired Loans with No Specific Allowance: Recorded Investment 9,650 7,365
Total Impaired Loans: Recorded Investment 11,961 7,365
Unpaid Principal Balance 12,170 7,390
Acquisition and development- 1-4 family residential construction [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 2,125 2,489
Impaired Loans with Specific Allowance: Related Allowance 545 859
Impaired Loans with No Specific Allowance: Recorded Investment 0 0
Total Impaired Loans: Recorded Investment 2,125 2,489
Unpaid Principal Balance 2,125 2,577
Acquisition and development- All other A&D [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 5,436 7,850
Impaired Loans with Specific Allowance: Related Allowance 1,039 1,859
Impaired Loans with No Specific Allowance: Recorded Investment 23,877 15,360
Total Impaired Loans: Recorded Investment 29,313 23,210
Unpaid Principal Balance 33,539 27,712
Commercial and industrial [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 9,043
Impaired Loans with Specific Allowance: Related Allowance 0 1,139
Impaired Loans with No Specific Allowance: Recorded Investment 4,222 4,005
Total Impaired Loans: Recorded Investment 4,222 13,048
Unpaid Principal Balance 4,222 13,137
Residential mortgage- term [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 218
Impaired Loans with Specific Allowance: Related Allowance 0 2
Impaired Loans with No Specific Allowance: Recorded Investment 4,692 4,816
Total Impaired Loans: Recorded Investment 4,692 5,034
Unpaid Principal Balance 5,045 5,488
Residential mortgage- home equity [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 0
Impaired Loans with Specific Allowance: Related Allowance 0 0
Impaired Loans with No Specific Allowance: Recorded Investment 551 1,082
Total Impaired Loans: Recorded Investment 551 1,082
Unpaid Principal Balance 551 1,177
Consumer [Member]
   
Financing Receivable, Impaired [Line Items]    
Impaired Loans with Specific Allowance: Recorded Investment 0 0
Impaired Loans with Specific Allowance: Related Allowance 0 0
Impaired Loans with No Specific Allowance: Recorded Investment 52 21
Total Impaired Loans: Recorded Investment 52 21
Unpaid Principal Balance $ 63 $ 33