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Loans (Gross Charge-Offs By Year of Origination) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | $ 25,974 | $ 6,301 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 359 | 1,510 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,785 | 1,161 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 1,079 | 4,845 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,310 | 1,473 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2,209 | 1,700 |
Financing Receivable, Revolving | 5,711 | 10,604 |
Financing Receivable, Revolving, Converted to Term Loan | 17,480 | 10,239 |
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 24,302 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 6,537 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,322 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 170 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 184 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 460 |  |
Financing Receivable, Revolving | 14,084 |  |
Financing Receivable, Revolving, Converted to Term Loan | 6,872 |  |
Commercial Portfolio Segment [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,619,306 | 1,703,185 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 768,246 | 657,039 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 491,938 | 498,213 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 364,446 | 241,997 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 182,089 | 138,541 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 219,766 | 195,754 |
Financing Receivable, Revolving | 2,247,752 | 2,170,182 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 18,315 | 6,575 | $ 5,513
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 359 | 1,252 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,635 | 1,089 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 985 | 3,242 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,257 | 1,197 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,006 | 191 |
Financing Receivable, Revolving | 9 | 2,973 |
Financing Receivable, Revolving, Converted to Term Loan | 14,294 | 8,186 |
Commercial Portfolio Segment [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 124 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,704 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 754 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 157 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 183 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 38 |  |
Financing Receivable, Revolving | 9,511 |  |
Financing Receivable, Revolving, Converted to Term Loan | 5,844 |  |
Commercial and Industrial Total Energy Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 277,722 | 352,224 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 61,500 | 100,862 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 74,631 | 5,312 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 3,835 | 8,659 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 6,876 | 3,078 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,541 | 2,913 |
Financing Receivable, Revolving | 495,329 | 408,022 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 518 | 371 | 5,331
Commercial and Industrial Total Energy Loans [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 5,875 | 4,657 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 72 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 56 | 1,386 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,321 | 10 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Revolving | 4,102 | 7,631 |
Financing Receivable, Revolving, Converted to Term Loan | 146 | 1,468 |
Commercial and Industrial Total Energy Loans [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |  |
Financing Receivable, Revolving | 0 |  |
Financing Receivable, Revolving, Converted to Term Loan | 518 |  |
Commercial Real Estate, Buildings, Land and Other [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,645,223 | 1,901,888 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,785,624 | 1,528,173 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,253,062 | 1,009,197 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 811,574 | 745,031 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 522,566 | 410,327 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 953,768 | 882,021 |
Financing Receivable, Revolving | 229,733 | 120,958 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 216 |  |
Commercial Real Estate, Buildings, Land and Other [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 20,099 | 1,644 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 150 | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 217 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,451 | 266 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 720 | 1,425 |
Financing Receivable, Revolving | 0 | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 |
Commercial Real Estate, Buildings, Land and Other [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 6 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 146 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 64 |  |
Financing Receivable, Revolving | 0 |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  |
Construction Loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 560,720 | 666,024 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 576,374 | 491,563 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 344,641 | 130,888 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 28,063 | 2,236 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 296 | 486 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,613 | 1,726 |
Financing Receivable, Revolving | 169,017 | 181,180 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 739 |  |
Construction Loans [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Revolving | 0 | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 |
Construction Loans [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 739 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 |  |
Financing Receivable, Revolving | 0 |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  |
Total consumer real estate loans [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff | 2,883 | 912 | 829
Total consumer real estate loans [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 258 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 38 | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,281 | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 483 | 84 |
Financing Receivable, Revolving | 1,600 | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 3,040 | 585 |
Total consumer real estate loans [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 118 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 281 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 348 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 329 |  |
Financing Receivable, Revolving | 1,807 |  |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  |
Consumer Loan [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff | 31,260 | 24,388 | 18,614
Consumer Loan [Member] | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 0 | 0 |
Financing Receivable, Revolving | 0 | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0 |
Consumer Loan [Member] | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration | Nonperforming Financial Instruments [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 23,321 |  |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 4,546 |  |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 74 |  |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 13 |  |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1 |  |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 29 |  |
Financing Receivable, Revolving | 2,766 |  |
Financing Receivable, Revolving, Converted to Term Loan | 510 |  |
Loans Receivable [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Financing Receivable, Allowance for Credit Loss, Writeoff | $ 53,931 | $ 32,948 | $ 30,686

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