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Loans Loans - Non-Accrual Loans, Segregated by Class of Loans and Year of Origination (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | $ 67,781 | $ 37,833
Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 12,248 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 517 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 19,180 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 8,259 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 4,912 |
Financing Receivable, Revolving | 21,578 |
Financing Receivable, Revolving, Converted to Term Loan | 1,079 |
Commercial Portfolio Segment [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,145,305 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 941,744 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 561,695 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 420,405 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 211,653 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 258,011 |
Financing Receivable, Revolving | 2,122,788 |
Non-accrual loans | 22,217 | 18,130
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [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 | 221 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 754 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,957 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,172 |
Financing Receivable, Revolving | 16,746 |
Financing Receivable, Revolving, Converted to Term Loan | 367 |
Commercial and Industrial Total Energy Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 311,743 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 70,287 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 83,419 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 4,469 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 7,643 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 6,089 |
Financing Receivable, Revolving | 466,945 |
Non-accrual loans | 16,712 | 15,224
Commercial and Industrial Total Energy Loans [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 10,324 |
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 | 59 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,349 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 2 |
Financing Receivable, Revolving | 4,832 |
Financing Receivable, Revolving, Converted to Term Loan | 146 |
Commercial Real Estate Buildings Land And Other Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 718,176 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 1,786,515 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 1,488,642 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 923,237 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 644,069 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,101,800 |
Financing Receivable, Revolving | 155,033 |
Non-accrual loans | 25,682 | 3,552
Commercial Real Estate Buildings Land And Other Loans [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 1,924 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 8 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 296 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 18,328 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 1,483 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 3,643 |
Financing Receivable, Revolving | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |
Construction Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Financing Receivable, Year One, Originated, Current Fiscal Year | 299,297 |
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year | 570,101 |
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year | 352,871 |
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year | 51,647 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 945 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 1,666 |
Financing Receivable, Revolving | 191,544 |
Non-accrual loans | 0 | 0
Construction Loans [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [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 | 0 |
Total consumer real estate loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | 3,170 | 927
Total consumer real estate loans [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [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 | 39 |
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year | 2,470 |
Financing Receivable, Originated, More than Five Years before Current Fiscal Year | 95 |
Financing Receivable, Revolving | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 566 |
Consumer Loan [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Non-accrual loans | 0 | $ 0
Consumer Loan [Member] | Nonperforming Financial Instruments [Member] |  |
Loans and Leases Receivable Disclosure [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 | $ 0 |

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