LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Nonaccrual Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	$ 461,702	$ 521,245
Nonaccrual With No Related Allowance	45,878	67,312
Past Due 90 Days or More and Accruing	6,832	2,691
Commercial
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	178,319	172,713
Nonaccrual With No Related Allowance	11,899	9,665
Past Due 90 Days or More and Accruing	984	1,310
Commercial real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	169,551	244,395
Nonaccrual With No Related Allowance	33,979	57,647
Past Due 90 Days or More and Accruing	3,695	0
BBCC
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	2,138	2,994
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	162	177
Residential real estate
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	79,272	73,806
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	127	599
Indirect
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	5,552	5,802
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	62	203
Direct
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	4,830	4,331
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	272	74
Home equity
Financing Receivable, Nonaccrual [Line Items]
Nonaccrual Amortized Cost	22,040	17,204
Nonaccrual With No Related Allowance	0	0
Past Due 90 Days or More and Accruing	$ 1,530	$ 328

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