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LOANS AND ALLOWANCE - Risk Grading of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | $ 2,212,810 | $ 3,483,295
Fiscal year before current fiscal year | 2,705,962 | 2,680,834
Two years before current fiscal year | 2,210,224 | 1,843,080
Three years before current fiscal year | 1,500,790 | 686,065
Four years before current fiscal year | 553,043 | 385,461
Prior | 958,254 | 828,159
Revolving loans amortized cost basis | 2,126,807 | 2,084,096
Revolving loans converted to term | 3,532 | 12,904
Total | 12,271,422 | 12,003,894
Commercial and industrial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 918,136 | 1,094,363
Current fiscal year, writeoff | 13,901 |
Fiscal year before current fiscal year | 584,258 | 576,080
Fiscal year before current fiscal year, writeoff | 508 |
Two years before current fiscal year | 319,453 | 159,416
Two years before current fiscal year, writeoff | 400 |
Three years before current fiscal year | 105,004 | 131,332
Three years before current fiscal year, writeoff | 5,588 |
Four years before current fiscal year | 58,313 | 48,822
Four years before current fiscal year, writeoff | 76 |
Prior | 51,646 | 48,058
Prior, writeoff | 239 |
Revolving loans amortized cost basis | 1,454,093 | 1,373,714
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 50 | 5,341
Revolving loans converted to term, writeoff | 0 |
Total | 3,490,953 | 3,437,126
Total, writeoff | 20,712 |
Commercial and industrial loans | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 901,876 | 1,064,687
Fiscal year before current fiscal year | 548,276 | 531,504
Two years before current fiscal year | 296,471 | 141,985
Three years before current fiscal year | 95,426 | 114,999
Four years before current fiscal year | 53,498 | 43,136
Prior | 49,094 | 45,310
Revolving loans amortized cost basis | 1,374,146 | 1,302,562
Revolving loans converted to term | 50 | 5,048
Total | 3,318,837 | 3,249,231
Commercial and industrial loans | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 9,450 | 2,164
Fiscal year before current fiscal year | 11,955 | 18,005
Two years before current fiscal year | 6,428 | 11,900
Three years before current fiscal year | 5,470 | 5,727
Four years before current fiscal year | 114 | 1,012
Prior | 897 | 2,181
Revolving loans amortized cost basis | 28,202 | 27,702
Revolving loans converted to term | 0 | 150
Total | 62,516 | 68,841
Commercial and industrial loans | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 5,902 | 27,512
Fiscal year before current fiscal year | 20,082 | 26,571
Two years before current fiscal year | 16,554 | 5,531
Three years before current fiscal year | 1,959 | 10,606
Four years before current fiscal year | 4,701 | 4,674
Prior | 1,655 | 567
Revolving loans amortized cost basis | 48,890 | 43,450
Revolving loans converted to term | 0 | 143
Total | 99,743 | 119,054
Commercial and industrial loans | Doubtful |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 908 |
Fiscal year before current fiscal year | 3,945 |
Two years before current fiscal year | 0 |
Three years before current fiscal year | 2,149 |
Four years before current fiscal year | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 2,855 |
Revolving loans converted to term | 0 |
Total | 9,857 |
Agricultural land, production and other loans to farmers |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 22,555 | 44,910
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 39,288 | 37,083
Fiscal year before current fiscal year, writeoff | 0 |
Two years before current fiscal year | 33,059 | 36,281
Two years before current fiscal year, writeoff | 0 |
Three years before current fiscal year | 32,692 | 15,296
Three years before current fiscal year, writeoff | 0 |
Four years before current fiscal year | 13,819 | 4,127
Four years before current fiscal year, writeoff | 0 |
Prior | 26,912 | 30,694
Prior, writeoff | 0 |
Revolving loans amortized cost basis | 65,513 | 73,402
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 0 | 0
Revolving loans converted to term, writeoff | 0 |
Total | 233,838 | 241,793
Total, writeoff | 0 |
Agricultural land, production and other loans to farmers | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 22,521 | 44,446
Fiscal year before current fiscal year | 38,866 | 36,299
Two years before current fiscal year | 33,059 | 35,791
Three years before current fiscal year | 32,234 | 15,296
Four years before current fiscal year | 13,819 | 3,752
Prior | 26,251 | 28,910
Revolving loans amortized cost basis | 65,513 | 73,402
Revolving loans converted to term | 0 | 0
Total | 232,263 | 237,896
Agricultural land, production and other loans to farmers | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 286
Fiscal year before current fiscal year | 266 | 784
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 281
Prior | 597 | 632
Revolving loans amortized cost basis | 0 | 0
Revolving loans converted to term | 0 | 0
Total | 863 | 1,983
Agricultural land, production and other loans to farmers | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 34 | 178
Fiscal year before current fiscal year | 156 | 0
Two years before current fiscal year | 0 | 490
Three years before current fiscal year | 458 | 0
Four years before current fiscal year | 0 | 94
Prior | 64 | 1,152
Revolving loans amortized cost basis | 0 | 0
Revolving loans converted to term | 0 | 0
Total | 712 | 1,914
Construction |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 397,654 | 383,367
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 299,869 | 301,986
Fiscal year before current fiscal year, writeoff | 0 |
Two years before current fiscal year | 271,417 | 117,541
Two years before current fiscal year, writeoff | 0 |
Three years before current fiscal year | 35,171 | 11,428
Three years before current fiscal year, writeoff | 0 |
Four years before current fiscal year | 4,047 | 857
Four years before current fiscal year, writeoff | 0 |
Prior | 2,526 | 3,236
Prior, writeoff | 0 |
Revolving loans amortized cost basis | 11,577 | 17,167
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 0 | 0
Revolving loans converted to term, writeoff | 0 |
Total | 1,022,261 | 835,582
Total, writeoff | 0 |
Construction | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 362,578 | 366,414
Fiscal year before current fiscal year | 295,563 | 301,986
Two years before current fiscal year | 266,129 | 117,541
Three years before current fiscal year | 14,325 | 11,428
Four years before current fiscal year | 4,047 | 857
Prior | 2,526 | 3,224
Revolving loans amortized cost basis | 11,577 | 17,167
Revolving loans converted to term | 0 | 0
Total | 956,745 | 818,617
Construction | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 35,063 | 16,922
Fiscal year before current fiscal year | 424 | 0
Two years before current fiscal year | 0 | 0
Three years before current fiscal year | 20,846 | 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 | 56,333 | 16,922
Construction | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 13 | 31
Fiscal year before current fiscal year | 3,882 | 0
Two years before current fiscal year | 5,288 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 0
Prior | 0 | 12
Revolving loans amortized cost basis | 0 | 0
Revolving loans converted to term | 0 | 0
Total | 9,183 | 43
Commercial real estate, non-owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 298,116 | 630,708
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 562,124 | 615,408
Fiscal year before current fiscal year, writeoff | 2 |
Two years before current fiscal year | 541,141 | 596,899
Two years before current fiscal year, writeoff | 0 |
Three years before current fiscal year | 497,135 | 187,486
Three years before current fiscal year, writeoff | 0 |
Four years before current fiscal year | 169,203 | 132,847
Four years before current fiscal year, writeoff | 0 |
Prior | 260,968 | 209,128
Prior, writeoff | 0 |
Revolving loans amortized cost basis | 31,909 | 31,196
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 0 | 3,803
Revolving loans converted to term, writeoff | 0 |
Total | 2,360,596 | 2,407,475
Total, writeoff | 2 |
Commercial real estate, non-owner occupied | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 214,579 | 560,146
Fiscal year before current fiscal year | 529,237 | 603,254
Two years before current fiscal year | 533,207 | 550,605
Three years before current fiscal year | 471,278 | 168,701
Four years before current fiscal year | 142,636 | 116,859
Prior | 225,787 | 190,264
Revolving loans amortized cost basis | 31,615 | 31,196
Revolving loans converted to term | 0 | 3,803
Total | 2,148,339 | 2,224,828
Commercial real estate, non-owner occupied | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 64,871 | 49,439
Fiscal year before current fiscal year | 22,956 | 4,026
Two years before current fiscal year | 7,842 | 38,268
Three years before current fiscal year | 3,641 | 18,785
Four years before current fiscal year | 26,567 | 11,546
Prior | 32,842 | 17,992
Revolving loans amortized cost basis | 47 | 0
Revolving loans converted to term | 0 | 0
Total | 158,766 | 140,056
Commercial real estate, non-owner occupied | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 18,666 | 21,123
Fiscal year before current fiscal year | 9,807 | 8,128
Two years before current fiscal year | 92 | 8,026
Three years before current fiscal year | 22,216 | 0
Four years before current fiscal year | 0 | 4,442
Prior | 2,339 | 872
Revolving loans amortized cost basis | 247 | 0
Revolving loans converted to term | 0 | 0
Total | 53,367 | 42,591
Commercial real estate, non-owner occupied | Doubtful |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 |
Fiscal year before current fiscal year | 124 |
Two years before current fiscal year | 0 |
Three years before current fiscal year | 0 |
Four years before current fiscal year | 0 |
Prior | 0 |
Revolving loans amortized cost basis | 0 |
Revolving loans converted to term | 0 |
Total | 124 |
Commercial real estate, owner occupied |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 139,503 | 271,593
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 222,019 | 324,004
Fiscal year before current fiscal year, writeoff | 0 |
Two years before current fiscal year | 283,816 | 335,062
Two years before current fiscal year, writeoff | 0 |
Three years before current fiscal year | 277,729 | 119,104
Three years before current fiscal year, writeoff | 0 |
Four years before current fiscal year | 104,394 | 67,946
Four years before current fiscal year, writeoff | 2 |
Prior | 97,958 | 90,990
Prior, writeoff | 0 |
Revolving loans amortized cost basis | 28,288 | 34,451
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 0 | 3,378
Revolving loans converted to term, writeoff | 0 |
Total | 1,153,707 | 1,246,528
Total, writeoff | 2 |
Commercial real estate, owner occupied | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 119,212 | 260,725
Fiscal year before current fiscal year | 207,077 | 316,665
Two years before current fiscal year | 270,151 | 330,441
Three years before current fiscal year | 269,190 | 114,015
Four years before current fiscal year | 101,546 | 63,816
Prior | 87,685 | 81,286
Revolving loans amortized cost basis | 27,327 | 33,123
Revolving loans converted to term | 0 | 3,378
Total | 1,082,188 | 1,203,449
Commercial real estate, owner occupied | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 5,178 | 7,744
Fiscal year before current fiscal year | 13,603 | 6,125
Two years before current fiscal year | 9,437 | 2,245
Three years before current fiscal year | 6,053 | 3,481
Four years before current fiscal year | 2,831 | 1,210
Prior | 5,110 | 2,984
Revolving loans amortized cost basis | 334 | 1,328
Revolving loans converted to term | 0 | 0
Total | 42,546 | 25,117
Commercial real estate, owner occupied | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 15,113 | 3,124
Fiscal year before current fiscal year | 1,339 | 1,214
Two years before current fiscal year | 4,228 | 2,376
Three years before current fiscal year | 2,486 | 1,608
Four years before current fiscal year | 17 | 2,920
Prior | 5,163 | 6,720
Revolving loans amortized cost basis | 627 | 0
Revolving loans converted to term | 0 | 0
Total | 28,973 | 17,962
Residential |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 333,654 | 762,399
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 700,583 | 494,049
Fiscal year before current fiscal year, writeoff | 42 |
Two years before current fiscal year | 458,098 | 405,136
Two years before current fiscal year, writeoff | 135 |
Three years before current fiscal year | 374,931 | 115,738
Three years before current fiscal year, writeoff | 3 |
Four years before current fiscal year | 107,654 | 79,632
Four years before current fiscal year, writeoff | 0 |
Prior | 274,903 | 234,141
Prior, writeoff | 63 |
Revolving loans amortized cost basis | 7,497 | 5,459
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 65 | 101
Revolving loans converted to term, writeoff | 0 |
Total | 2,257,385 | 2,096,655
Total, writeoff | 243 |
Residential | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 332,210 | 758,161
Fiscal year before current fiscal year | 691,941 | 489,301
Two years before current fiscal year | 451,830 | 401,353
Three years before current fiscal year | 372,247 | 114,420
Four years before current fiscal year | 105,548 | 77,768
Prior | 265,879 | 229,812
Revolving loans amortized cost basis | 4,878 | 5,365
Revolving loans converted to term | 65 | 46
Total | 2,224,598 | 2,076,226
Residential | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 1,087 | 2,839
Fiscal year before current fiscal year | 5,304 | 2,924
Two years before current fiscal year | 4,034 | 1,972
Three years before current fiscal year | 1,710 | 513
Four years before current fiscal year | 1,578 | 396
Prior | 6,501 | 2,588
Revolving loans amortized cost basis | 2,588 | 34
Revolving loans converted to term | 0 | 0
Total | 22,802 | 11,266
Residential | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 357 | 1,399
Fiscal year before current fiscal year | 3,338 | 1,824
Two years before current fiscal year | 2,234 | 1,811
Three years before current fiscal year | 974 | 805
Four years before current fiscal year | 528 | 1,468
Prior | 2,523 | 1,741
Revolving loans amortized cost basis | 31 | 60
Revolving loans converted to term | 0 | 55
Total | 9,985 | 9,163
Home equity |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 9,338 | 40,768
Current fiscal year, writeoff | 0 |
Fiscal year before current fiscal year | 35,504 | 75,749
Fiscal year before current fiscal year, writeoff | 160 |
Two years before current fiscal year | 65,078 | 14,621
Two years before current fiscal year, writeoff | 182 |
Three years before current fiscal year | 12,625 | 1,572
Three years before current fiscal year, writeoff | 149 |
Four years before current fiscal year | 1,162 | 1,528
Four years before current fiscal year, writeoff | 193 |
Prior | 4,827 | 3,393
Prior, writeoff | 1,422 |
Revolving loans amortized cost basis | 477,999 | 492,720
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 2,819 | 281
Revolving loans converted to term, writeoff | 0 |
Total | 609,352 | 630,632
Total, writeoff | 2,106 |
Home equity | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 9,155 | 40,768
Fiscal year before current fiscal year | 34,784 | 75,670
Two years before current fiscal year | 64,438 | 14,621
Three years before current fiscal year | 11,511 | 1,572
Four years before current fiscal year | 1,162 | 1,348
Prior | 4,566 | 3,325
Revolving loans amortized cost basis | 472,517 | 486,924
Revolving loans converted to term | 2,065 | 281
Total | 600,198 | 624,509
Home equity | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 120 | 0
Fiscal year before current fiscal year | 720 | 0
Two years before current fiscal year | 41 | 0
Three years before current fiscal year | 1,114 | 0
Four years before current fiscal year | 0 | 115
Prior | 168 | 8
Revolving loans amortized cost basis | 4,108 | 3,698
Revolving loans converted to term | 371 | 0
Total | 6,642 | 3,821
Home equity | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 63 | 0
Fiscal year before current fiscal year | 0 | 79
Two years before current fiscal year | 599 | 0
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 65
Prior | 93 | 60
Revolving loans amortized cost basis | 1,374 | 2,098
Revolving loans converted to term | 383 | 0
Total | 2,512 | 2,302
Individuals' loans for household and other personal expenditures |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 32,619 | 68,062
Current fiscal year, writeoff | 98 |
Fiscal year before current fiscal year | 53,248 | 43,773
Fiscal year before current fiscal year, writeoff | 591 |
Two years before current fiscal year | 31,525 | 13,105
Two years before current fiscal year, writeoff | 291 |
Three years before current fiscal year | 8,104 | 5,422
Three years before current fiscal year, writeoff | 77 |
Four years before current fiscal year | 2,746 | 5,942
Four years before current fiscal year, writeoff | 57 |
Prior | 6,583 | 3,800
Prior, writeoff | 151 |
Revolving loans amortized cost basis | 41,100 | 35,107
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 598 | 0
Revolving loans converted to term, writeoff | 0 |
Total | 176,523 | 175,211
Total, writeoff | 1,265 |
Individuals' loans for household and other personal expenditures | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 32,590 | 67,883
Fiscal year before current fiscal year | 52,860 | 43,639
Two years before current fiscal year | 31,275 | 13,025
Three years before current fiscal year | 8,070 | 5,389
Four years before current fiscal year | 2,735 | 5,830
Prior | 6,572 | 3,775
Revolving loans amortized cost basis | 40,907 | 35,091
Revolving loans converted to term | 597 | 0
Total | 175,606 | 174,632
Individuals' loans for household and other personal expenditures | Special Mention |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 29 | 178
Fiscal year before current fiscal year | 388 | 134
Two years before current fiscal year | 250 | 77
Three years before current fiscal year | 34 | 33
Four years before current fiscal year | 11 | 28
Prior | 11 | 17
Revolving loans amortized cost basis | 193 | 16
Revolving loans converted to term | 1 | 0
Total | 917 | 483
Individuals' loans for household and other personal expenditures | Substandard |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 0 | 1
Fiscal year before current fiscal year | 0 | 0
Two years before current fiscal year | 0 | 3
Three years before current fiscal year | 0 | 0
Four years before current fiscal year | 0 | 84
Prior | 0 | 8
Revolving loans amortized cost basis | 0 | 0
Revolving loans converted to term | 0 | 0
Total | 0 | 96
Public finance and other commercial loans |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 61,235 | 187,125
Current fiscal year, writeoff | 13,999 |
Fiscal year before current fiscal year | 209,069 | 212,702
Fiscal year before current fiscal year, writeoff | 1,303 |
Two years before current fiscal year | 206,637 | 165,019
Two years before current fiscal year, writeoff | 1,008 |
Three years before current fiscal year | 157,399 | 98,687
Three years before current fiscal year, writeoff | 5,817 |
Four years before current fiscal year | 91,705 | 43,760
Four years before current fiscal year, writeoff | 328 |
Prior | 231,931 | 204,719
Prior, writeoff | 1,875 |
Revolving loans amortized cost basis | 8,831 | 20,880
Revolving loans amortized cost basis, writeoff | 0 |
Revolving loans converted to term | 0 | 0
Revolving loans converted to term, writeoff | 0 |
Total | 966,807 | 932,892
Total, writeoff | 24,330 |
Public finance and other commercial loans | Pass |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Current fiscal year | 61,235 | 187,125
Fiscal year before current fiscal year | 209,069 | 212,702
Two years before current fiscal year | 206,637 | 165,019
Three years before current fiscal year | 157,399 | 98,687
Four years before current fiscal year | 91,705 | 43,760
Prior | 231,931 | 204,719
Revolving loans amortized cost basis | 8,831 | 20,880
Revolving loans converted to term | 0 | 0
Total | $ 966,807 | $ 932,892

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