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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Composition of Loan Portfolio by Loan Class (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 12,854,359	$ 12,486,027
Commercial and industrial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	4,114,292	3,670,948
Agricultural land, production and other loans to farmers
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	256,312	263,414
Construction
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	792,144	957,545
Commercial real estate, non-owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,274,016	2,400,839
Commercial real estate, owner occupied
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	1,157,944	1,162,083
Residential
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	2,374,729	2,288,921
Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	659,811	617,571
Individuals' loans for household and other personal expenditures
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	166,028	168,388
Public finance and other commercial loans
Financing Receivable, Credit Quality Indicator [Line Items]
Loans	$ 1,059,083	$ 956,318

X

- Definition

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

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