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Loans (Aging of Past Due Loans) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 3,977,900 | $ 3,788,645
Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 21,865 | 25,122
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 11,253 | 10,633
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,378 | 3,706
Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,234 | 10,783
Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,956,035 | 3,763,523
Commercial and Industrial Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 589,541 | 620,106
Commercial and Industrial Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 4,388 | 9,234
Commercial and Industrial Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 832 | 268
Commercial and Industrial Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 257 | 681
Commercial and Industrial Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 3,299 | 8,285
Commercial and Industrial Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 585,153 | 610,872
Commercial Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,121,835 | 1,966,884
Commercial Real Estate Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,637 | 2,247
Commercial Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,215 | 1,617
Commercial Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 484 | 14
Commercial Real Estate Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 938 | 616
Commercial Real Estate Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,119,198 | 1,964,637
Agricultural Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 423,803 | 417,413
Agricultural Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 750 | 466
Agricultural Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 5 | 343
Agricultural Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 248 | 0
Agricultural Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 497 | 123
Agricultural Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 423,053 | 416,947
Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 71,988 | 56,396
Leases | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Leases | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Leases | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Leases | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 0 | 0
Leases | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 71,988 | 56,396
Home Equity Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 299,685 | 279,748
Home Equity Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 2,620 | 2,220
Home Equity Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,016 | 1,770
Home Equity Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 571 | 140
Home Equity Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,033 | 310
Home Equity Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 297,065 | 277,528
Consumer Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 87,853 | 79,904
Consumer Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 852 | 535
Consumer Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 658 | 219
Consumer Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 84 | 64
Consumer Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 110 | 252
Consumer Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 87,001 | 79,369
Credit Cards |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 20,351 | 17,512
Credit Cards | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 394 | 256
Credit Cards | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 165 | 86
Credit Cards | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 87 | 24
Credit Cards | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 142 | 146
Credit Cards | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 19,957 | 17,256
Residential Mortgage Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 362,844 | 350,682
Residential Mortgage Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 10,224 | 10,164
Residential Mortgage Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 7,362 | 6,330
Residential Mortgage Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,647 | 2,783
Residential Mortgage Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | 1,215 | 1,051
Residential Mortgage Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Loans | $ 352,620 | $ 340,518

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