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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Past Due Aging of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans	$ 12,854,359	$ 12,486,027
Loans > 90 Days or More Past Due And Accruing	5,902	172
Current
Financing Receivable, Past Due [Line Items]
Loans	12,738,196	12,406,783
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	35,773	34,075
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	32,581	11,189
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	47,809	33,980
Commercial and industrial loans
Financing Receivable, Past Due [Line Items]
Loans	4,114,292	3,670,948
Loans > 90 Days or More Past Due And Accruing	2,010	86
Commercial and industrial loans | Current
Financing Receivable, Past Due [Line Items]
Loans	4,096,605	3,657,447
Commercial and industrial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	7,428	5,021
Commercial and industrial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	473	1,622
Commercial and industrial loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	9,786	6,858
Agricultural land, production and other loans to farmers
Financing Receivable, Past Due [Line Items]
Loans	256,312	263,414
Loans > 90 Days or More Past Due And Accruing	0	0
Agricultural land, production and other loans to farmers | Current
Financing Receivable, Past Due [Line Items]
Loans	256,148	263,414
Agricultural land, production and other loans to farmers | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	164	0
Agricultural land, production and other loans to farmers | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Agricultural land, production and other loans to farmers | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Construction
Financing Receivable, Past Due [Line Items]
Loans	792,144	957,545
Loans > 90 Days or More Past Due And Accruing	3,683	0
Construction | Current
Financing Receivable, Past Due [Line Items]
Loans	761,819	955,588
Construction | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,332	0
Construction | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	22,005	1,957
Construction | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,988	0
Commercial real estate, non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans	2,274,016	2,400,839
Loans > 90 Days or More Past Due And Accruing	0	0
Commercial real estate, non-owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	2,259,549	2,376,184
Commercial real estate, non-owner occupied | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	2,407	12,995
Commercial real estate, non-owner occupied | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,718	195
Commercial real estate, non-owner occupied | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	10,342	11,465
Commercial real estate, owner occupied
Financing Receivable, Past Due [Line Items]
Loans	1,157,944	1,162,083
Loans > 90 Days or More Past Due And Accruing	0	0
Commercial real estate, owner occupied | Current
Financing Receivable, Past Due [Line Items]
Loans	1,153,861	1,161,869
Commercial real estate, owner occupied | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	3,783	0
Commercial real estate, owner occupied | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	104
Commercial real estate, owner occupied | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	300	110
Residential
Financing Receivable, Past Due [Line Items]
Loans	2,374,729	2,288,921
Loans > 90 Days or More Past Due And Accruing	208	0
Residential | Current
Financing Receivable, Past Due [Line Items]
Loans	2,337,002	2,259,496
Residential | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	12,302	11,810
Residential | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	6,606	5,472
Residential | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	18,819	12,143
Home equity
Financing Receivable, Past Due [Line Items]
Loans	659,811	617,571
Loans > 90 Days or More Past Due And Accruing	0	52
Home equity | Current
Financing Receivable, Past Due [Line Items]
Loans	649,238	608,948
Home equity | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,431	3,614
Home equity | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	1,569	1,647
Home equity | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	4,573	3,362
Consumer
Financing Receivable, Past Due [Line Items]
Loans	166,028	168,388
Loans > 90 Days or More Past Due And Accruing	1	0
Consumer | Current
Financing Receivable, Past Due [Line Items]
Loans	164,891	167,553
Consumer | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	926	635
Consumer | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	210	192
Consumer | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	1	8
Public finance and other commercial loans
Financing Receivable, Past Due [Line Items]
Loans	1,059,083	956,318
Loans > 90 Days or More Past Due And Accruing	0	34
Public finance and other commercial loans | Current
Financing Receivable, Past Due [Line Items]
Loans	1,059,083	956,284
Public finance and other commercial loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Public finance and other commercial loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans	0	0
Public finance and other commercial loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Loans	$ 0	$ 34

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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