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LOANS - Loans and Allowance, Broken Down by Portfolio Segment (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	$ 5,407,231	$ 5,170,042
Allowance for Credit Losses	56,205	54,032	$ 38,917	$ 30,742
Commercial, Financial and Agriculture
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	740,193	800,324
Allowance for Credit Losses	11,203	8,844	6,349	4,873
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	3,323,681	3,059,155
Allowance for Credit Losses	29,467	29,125	20,389	17,552
Consumer Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	1,298,973	1,252,795
Allowance for Credit Losses	14,876	15,260	11,599	7,889
Consumer Installment
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	44,384	57,768
Allowance for Credit Losses	659	803	$ 580	$ 428
Individually evaluated
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	7,210	2,902
Allowance for Credit Losses	595	408
Individually evaluated \| Commercial, Financial and Agriculture
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	1,094	1,414
Allowance for Credit Losses	543	408
Individually evaluated \| Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	3,697	710
Allowance for Credit Losses	0	0
Individually evaluated \| Consumer Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	2,412	778
Allowance for Credit Losses	52	0
Individually evaluated \| Consumer Installment
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	7	0
Allowance for Credit Losses	0	0
Collectively evaluated
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	5,400,021	5,167,140
Allowance for Credit Losses	55,610	53,624
Collectively evaluated \| Commercial, Financial and Agriculture
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	739,099	798,910
Allowance for Credit Losses	10,660	8,436
Collectively evaluated \| Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	3,319,984	3,058,445
Allowance for Credit Losses	29,467	29,125
Collectively evaluated \| Consumer Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	1,296,561	1,252,017
Allowance for Credit Losses	14,824	15,260
Collectively evaluated \| Consumer Installment
Financing Receivable, Allowance for Credit Losses [Line Items]
Total LHFI	44,377	57,768
Allowance for Credit Losses	$ 659	$ 803