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Allowance for Credit Losses - Schedule of Credit Quality Indicators by Total Loans on an Amortized Cost Basis (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Total loans and leases, net of unearned income and deferred costs and fees | $ 6,288,071 | $ 6,019,922
Commercial and Industrial | Commercial and industrial other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 116,948 | 165,568
One year before current fiscal year | 160,949 | 114,879
Two years before current fiscal year | 102,428 | 61,199
Three years before current fiscal year | 77,067 | 54,938
Four years before current fiscal year | 42,375 | 19,459
Prior | 159,313 | 145,768
Revolving Loans Amortized Cost Basis | 276,256 | 257,789
Revolving Loans Converted to Term | 3,265 | 35,968
Total loans and leases, net of unearned income and deferred costs and fees | 938,601 | 855,568
Current-period gross writeoffs |  |
Current fiscal year | 138 | 0
One year before current fiscal year | 380 | 15
Two years before current fiscal year | 85 | 30
Three years before current fiscal year | 66 | 44
Four years before current fiscal year | 254 | 21
Prior | 13 | 432
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 936 | 542
Commercial and Industrial | Commercial and industrial other | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 116,818 | 164,809
One year before current fiscal year | 160,017 | 114,591
Two years before current fiscal year | 100,931 | 60,984
Three years before current fiscal year | 55,850 | 54,087
Four years before current fiscal year | 41,891 | 19,311
Prior | 157,356 | 144,785
Revolving Loans Amortized Cost Basis | 250,115 | 256,621
Revolving Loans Converted to Term | 3,075 | 35,968
Total loans and leases, net of unearned income and deferred costs and fees | 886,053 | 851,156
Commercial and Industrial | Commercial and industrial other | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 130 | 334
One year before current fiscal year | 485 | 288
Two years before current fiscal year | 1,301 | 174
Three years before current fiscal year | 21,217 | 808
Four years before current fiscal year | 57 | 144
Prior | 1,501 | 375
Revolving Loans Amortized Cost Basis | 23,626 | 157
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 48,317 | 2,280
Commercial and Industrial | Commercial and industrial other | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 425
One year before current fiscal year | 447 | 0
Two years before current fiscal year | 196 | 41
Three years before current fiscal year | 0 | 43
Four years before current fiscal year | 427 | 4
Prior | 456 | 608
Revolving Loans Amortized Cost Basis | 2,515 | 1,011
Revolving Loans Converted to Term | 190 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 4,231 | 2,132
Commercial and Industrial | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 9,959 | 15,686
One year before current fiscal year | 11,862 | 23,823
Two years before current fiscal year | 24,477 | 9,893
Three years before current fiscal year | 8,204 | 2,267
Four years before current fiscal year | 1,724 | 1,701
Prior | 6,844 | 11,304
Revolving Loans Amortized Cost Basis | 38,344 | 42,438
Revolving Loans Converted to Term | 383 | 2,895
Total loans and leases, net of unearned income and deferred costs and fees | 101,797 | 110,007
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 0 | 0
Commercial and Industrial | Agriculture | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 9,959 | 15,686
One year before current fiscal year | 11,862 | 23,823
Two years before current fiscal year | 24,477 | 9,893
Three years before current fiscal year | 8,204 | 2,233
Four years before current fiscal year | 1,698 | 1,660
Prior | 6,815 | 11,304
Revolving Loans Amortized Cost Basis | 38,344 | 42,438
Revolving Loans Converted to Term | 383 | 2,895
Total loans and leases, net of unearned income and deferred costs and fees | 101,742 | 109,932
Commercial and Industrial | Agriculture | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 34
Four years before current fiscal year | 26 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 26 | 34
Commercial and Industrial | Agriculture | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 41
Prior | 29 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 29 | 41
Commercial Real Estate | Commercial and industrial other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 271,843 | 332,674
One year before current fiscal year | 323,682 | 243,537
Two years before current fiscal year | 267,589 | 327,483
Three years before current fiscal year | 334,900 | 358,250
Four years before current fiscal year | 356,763 | 294,265
Prior | 1,311,673 | 1,147,068
Revolving Loans Amortized Cost Basis | 67,465 | 56,069
Revolving Loans Converted to Term | 30,415 | 16,958
Total loans and leases, net of unearned income and deferred costs and fees | 2,964,330 | 2,776,304
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 2,000 | 0
Prior | 2,884 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 4,884 | 0
Commercial Real Estate | Commercial and industrial other | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 265,343 | 331,943
One year before current fiscal year | 323,283 | 242,564
Two years before current fiscal year | 266,662 | 324,510
Three years before current fiscal year | 332,272 | 355,090
Four years before current fiscal year | 354,721 | 277,220
Prior | 1,251,036 | 1,088,575
Revolving Loans Amortized Cost Basis | 66,634 | 50,632
Revolving Loans Converted to Term | 30,415 | 16,958
Total loans and leases, net of unearned income and deferred costs and fees | 2,890,366 | 2,687,492
Commercial Real Estate | Commercial and industrial other | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 6,500 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 1,499
Three years before current fiscal year | 1,479 | 599
Four years before current fiscal year | 580 | 15,205
Prior | 31,336 | 12,637
Revolving Loans Amortized Cost Basis | 0 | 4,452
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 39,895 | 34,392
Commercial Real Estate | Commercial and industrial other | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 731
One year before current fiscal year | 399 | 973
Two years before current fiscal year | 927 | 1,474
Three years before current fiscal year | 1,149 | 2,561
Four years before current fiscal year | 1,462 | 1,840
Prior | 29,301 | 45,856
Revolving Loans Amortized Cost Basis | 831 | 985
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 34,069 | 54,420
Commercial Real Estate | Agriculture |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 13,648 | 23,754
One year before current fiscal year | 24,237 | 11,594
Two years before current fiscal year | 11,641 | 37,398
Three years before current fiscal year | 39,874 | 21,510
Four years before current fiscal year | 20,694 | 19,853
Prior | 107,462 | 97,354
Revolving Loans Amortized Cost Basis | 6,944 | 4,169
Revolving Loans Converted to Term | 2,156 | 1,950
Total loans and leases, net of unearned income and deferred costs and fees | 226,656 | 217,582
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 0 | 0
Commercial Real Estate | Agriculture | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 13,648 | 23,754
One year before current fiscal year | 24,237 | 11,594
Two years before current fiscal year | 11,641 | 37,398
Three years before current fiscal year | 39,874 | 21,510
Four years before current fiscal year | 20,694 | 19,853
Prior | 107,171 | 96,967
Revolving Loans Amortized Cost Basis | 6,944 | 4,169
Revolving Loans Converted to Term | 2,156 | 1,950
Total loans and leases, net of unearned income and deferred costs and fees | 226,365 | 217,195
Commercial Real Estate | Agriculture | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 160 | 217
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 160 | 217
Commercial Real Estate | Agriculture | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 131 | 170
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 131 | 170
Commercial Real Estate | Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 6,195 | 13,160
One year before current fiscal year | 34,179 | 744
Two years before current fiscal year | 6,622 | 682
Three years before current fiscal year | 1,846 | 5,003
Four years before current fiscal year | 14,376 | 1,986
Prior | 321 | 802
Revolving Loans Amortized Cost Basis | 314,883 | 310,879
Revolving Loans Converted to Term | 3,256 | 52,675
Total loans and leases, net of unearned income and deferred costs and fees | 381,678 | 385,931
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 0 | 0
Commercial Real Estate | Construction | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 6,195 | 13,160
One year before current fiscal year | 34,179 | 744
Two years before current fiscal year | 6,622 | 682
Three years before current fiscal year | 1,846 | 5,003
Four years before current fiscal year | 14,376 | 1,986
Prior | 321 | 802
Revolving Loans Amortized Cost Basis | 297,581 | 293,479
Revolving Loans Converted to Term | 3,256 | 52,675
Total loans and leases, net of unearned income and deferred costs and fees | 364,376 | 368,531
Commercial Real Estate | Construction | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 0 | 0
Commercial Real Estate | Construction | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 17,302 | 17,400
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 17,302 | 17,400
Residential | Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 2,249 | 15,181
One year before current fiscal year | 16,294 | 3,106
Two years before current fiscal year | 3,547 | 2,383
Three years before current fiscal year | 2,994 | 1,053
Four years before current fiscal year | 1,499 | 784
Prior | 15,998 | 13,587
Revolving Loans Amortized Cost Basis | 178,486 | 165,497
Revolving Loans Converted to Term | 1,135 | 2,603
Total loans and leases, net of unearned income and deferred costs and fees | 222,202 | 204,194
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 0 | 0
Residential | Home equity | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 2,249 | 15,181
One year before current fiscal year | 16,294 | 3,106
Two years before current fiscal year | 3,547 | 2,383
Three years before current fiscal year | 2,937 | 1,053
Four years before current fiscal year | 1,499 | 784
Prior | 15,364 | 12,993
Revolving Loans Amortized Cost Basis | 176,477 | 163,202
Revolving Loans Converted to Term | 1,135 | 2,603
Total loans and leases, net of unearned income and deferred costs and fees | 219,502 | 201,305
Residential | Home equity | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 57 | 0
Four years before current fiscal year | 0 | 0
Prior | 634 | 594
Revolving Loans Amortized Cost Basis | 2,009 | 2,295
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 2,700 | 2,889
Residential | Mortgages |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 75,438 | 106,698
One year before current fiscal year | 107,673 | 131,170
Two years before current fiscal year | 124,237 | 172,922
Three years before current fiscal year | 163,667 | 240,044
Four years before current fiscal year | 227,030 | 205,258
Prior | 659,609 | 510,554
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 1,357,654 | 1,366,646
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 0
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 0 | 0
Residential | Mortgages | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 75,438 | 106,698
One year before current fiscal year | 107,485 | 130,463
Two years before current fiscal year | 123,351 | 172,310
Three years before current fiscal year | 162,612 | 239,307
Four years before current fiscal year | 225,756 | 204,310
Prior | 649,101 | 500,169
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 1,343,743 | 1,353,257
Residential | Mortgages | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 188 | 707
Two years before current fiscal year | 886 | 612
Three years before current fiscal year | 1,055 | 737
Four years before current fiscal year | 1,274 | 948
Prior | 10,508 | 10,385
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 13,911 | 13,389
Consumer and Other | Direct |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 33,180 | 40,812
One year before current fiscal year | 12,532 | 18,086
Two years before current fiscal year | 12,383 | 10,046
Three years before current fiscal year | 7,985 | 9,117
Four years before current fiscal year | 7,246 | 3,957
Prior | 13,232 | 11,562
Revolving Loans Amortized Cost Basis | 2,215 | 2,583
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 88,773 | 96,163
Current-period gross writeoffs |  |
Current fiscal year | 1,789 | 2,272
One year before current fiscal year | 7 | 15
Two years before current fiscal year | 0 | 11
Three years before current fiscal year | 17 | 32
Four years before current fiscal year | 17 | 10
Prior | 51 | 229
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 1,881 | 2,569
Consumer and Other | Direct | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 33,180 | 40,812
One year before current fiscal year | 12,532 | 18,082
Two years before current fiscal year | 12,363 | 10,022
Three years before current fiscal year | 7,975 | 9,109
Four years before current fiscal year | 7,246 | 3,953
Prior | 13,174 | 11,485
Revolving Loans Amortized Cost Basis | 2,213 | 2,575
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 88,683 | 96,038
Consumer and Other | Direct | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 4
Two years before current fiscal year | 20 | 24
Three years before current fiscal year | 10 | 8
Four years before current fiscal year | 0 | 4
Prior | 58 | 77
Revolving Loans Amortized Cost Basis | 2 | 8
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 90 | 125
Consumer and Other | Indirect |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 52
Four years before current fiscal year | 24 | 23
Prior | 66 | 154
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 90 | 229
Current-period gross writeoffs |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 10 | 29
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total Loans | 10 | 29
Consumer and Other | Indirect | Performing |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 52
Four years before current fiscal year | 24 | 23
Prior | 62 | 141
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | 86 | 216
Consumer and Other | Indirect | Nonperforming |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 0
One year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 4 | 13
Revolving Loans Amortized Cost Basis | 0 | 0
Revolving Loans Converted to Term | 0 | 0
Total loans and leases, net of unearned income and deferred costs and fees | $ 4 | $ 13

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