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Loans (Loans Individually Evaluated For Impairment By Class Of Loans) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017 | Dec. 31, 2017
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | $ 57,767 |  | $ 57,767 |  | $ 66,585
Recorded investment | 46,760 | $ 73,609 | 46,760 | $ 73,609 | 56,564
Allowance for loan losses allocated | 1,846 |  | 1,846 |  | 684
Impaired Financing Receivable, Average Recorded Investment | 54,679 | 72,580 | 52,015 | 68,953 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 485 | 654 | 1,292 | 1,902 |
Commercial Financial And Agricultural [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 16,026 | 29,848 | 16,026 | 29,848 |
Impaired Financing Receivable, Average Recorded Investment | 23,247 | 28,412 | 22,686 | 23,770 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 187 | 398 | 506 | 738 |
Commercial Financial And Agricultural [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 18,067 |  | 18,067 |  | 19,899
Recorded investment | 12,801 |  | 12,801 |  | 14,704
Allowance for loan losses allocated | 0 |  | 0 |  | 0
Commercial Financial And Agricultural [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 5,317 |  | 5,317 |  | 5,394
Recorded investment | 3,225 |  | 3,225 |  | 3,335
Allowance for loan losses allocated | 1,716 |  | 1,716 |  | 681
Construction Real Estate Commercial [Domain] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 2,016 | 1,460 | 2,016 | 1,460 |
Impaired Financing Receivable, Average Recorded Investment | 2,246 | 1,554 | 1,661 | 1,830 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 4 | 18 | 31 | 49 |
Construction Real Estate Commercial [Domain] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 4,829 |  | 4,829 |  | 2,788
Recorded investment | 2,016 |  | 2,016 |  | 1,324
Allowance for loan losses allocated | 0 |  | 0 |  | 0
Residential Real Estate Commercial [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 2,913 | 19,298 | 2,913 | 19,298 |
Impaired Financing Receivable, Average Recorded Investment | 2,758 | 20,365 | 6,086 | 20,876 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 26 | 46 | 84 | 452 |
Residential Real Estate Commercial [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 3,004 |  | 3,004 |  | 19,346
Recorded investment | 2,716 |  | 2,716 |  | 19,012
Allowance for loan losses allocated | 0 |  | 0 |  | 0
Residential Real Estate Commercial [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 200 |  | 200 |  | 47
Recorded investment | 197 |  | 197 |  | 47
Allowance for loan losses allocated | 59 |  | 59 |  | 1
Commercial Real Estate [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment | 25,805 | 22,995 | 25,805 | 22,995 |
Impaired Financing Receivable, Average Recorded Investment | 26,428 | 22,241 | 21,582 | 22,470 |
Impaired Financing Receivable, Interest Income, Cash Basis Method | 268 | 192 | 671 | 663 |
Commercial Real Estate [Member] | Financing Receivable With No Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 24,518 |  | 24,518 |  | 18,974
Recorded investment | 24,004 |  | 24,004 |  | 18,060
Allowance for loan losses allocated | 0 |  | 0 |  | 0
Commercial Real Estate [Member] | Financing Receivable With A Related Allowance Recorded [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Unpaid principal balance | 1,832 |  | 1,832 |  | 137
Recorded investment | 1,801 |  | 1,801 |  | 82
Allowance for loan losses allocated | $ 71 |  | $ 71 |  | $ 2
Consumer [Member] |  |  |  |  |
Financing Receivable, Impaired [Line Items] |  |  |  |  |
Recorded investment |  | 8 |  | 8 |
Impaired Financing Receivable, Average Recorded Investment |  | $ 8 |  | $ 7 |

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