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Loans (Narrative) (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Loans | $ 4,411,057,000 | $ 4,005,036,000 |
Accrued interest receivable | 24,481,000 | 19,371,000 |
Loans, related parties | 40,000,000 | 37,800,000 |
Loans, related parties, new borrowings | 10,700,000 |  |
Loans, related parties, repayments and other reductions | 8,500,000 |  |
Interest income on nonaccrual loans | 0 | 0 | $ 0
Estimated interest income | $ 589,000 | 391,000 | $ 211,000
Days past due when loans are generally placed on nonaccrual status, in days | 90 days |  |
Consumer Overdrafts [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Past due greater than 90 days and still accruing interest | $ 21,000 | 1,000 |
Other Assets [Member] |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Accrued interest receivable | $ 21,800,000 | $ 16,600,000 |

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- Definition Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479294/326-20-55-80 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (b) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-7 + Details
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