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Loans - Aging of Past Due Loans (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Total | $ 3,978,919 | $ 3,977,900
Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 20,264 | 21,865
30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 7,788 | 11,253
60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 4,827 | 3,378
Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 7,649 | 7,234
Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 3,958,655 | 3,956,035
Commercial and Industrial Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 572,666 | 589,541
Commercial and Industrial Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 4,202 | 4,388
Commercial and Industrial Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 136 | 832
Commercial and Industrial Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 458 | 257
Commercial and Industrial Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 3,608 | 3,299
Commercial and Industrial Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 568,464 | 585,153
Commercial Real Estate Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 2,148,808 | 2,121,835
Commercial Real Estate Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 3,015 | 2,637
Commercial Real Estate Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 734 | 1,215
Commercial Real Estate Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 849 | 484
Commercial Real Estate Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 1,432 | 938
Commercial Real Estate Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 2,145,793 | 2,119,198
Agricultural Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 400,733 | 423,803
Agricultural Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 1,560 | 750
Agricultural Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 6 | 5
Agricultural Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 1,057 | 248
Agricultural Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 497 | 497
Agricultural Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 399,173 | 423,053
Leases |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 73,496 | 71,988
Leases | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 0 | 0
Leases | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 0 | 0
Leases | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 0 | 0
Leases | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 0 | 0
Leases | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 73,496 | 71,988
Home Equity Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 312,859 | 299,685
Home Equity Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 2,172 | 2,620
Home Equity Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 1,376 | 1,016
Home Equity Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 292 | 571
Home Equity Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 504 | 1,033
Home Equity Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 310,687 | 297,065
Consumer Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 88,008 | 87,853
Consumer Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 845 | 852
Consumer Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 732 | 658
Consumer Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 36 | 84
Consumer Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 77 | 110
Consumer Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 87,163 | 87,001
Credit Cards |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 21,113 | 20,351
Credit Cards | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 212 | 394
Credit Cards | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 89 | 165
Credit Cards | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 73 | 87
Credit Cards | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 50 | 142
Credit Cards | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 20,901 | 19,957
Residential Mortgage Loans |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 361,236 | 362,844
Residential Mortgage Loans | Total Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 8,258 | 10,224
Residential Mortgage Loans | 30-59 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 4,715 | 7,362
Residential Mortgage Loans | 60-89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 2,062 | 1,647
Residential Mortgage Loans | Greater Than 89 Days Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | 1,481 | 1,215
Residential Mortgage Loans | Loans Not Past Due |  |
Financing Receivable, Past Due [Line Items] |  |
Total | $ 352,978 | $ 352,620

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