ALLOWANCE FOR CREDIT LOSSES - Balance in Allowance for Credit Losses and Recorded Investment in Loans by Impairment (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Individually	$ 2,023	$ 5,043
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	29,462	28,688
Total Allowance for Credit Losses	31,485	33,731
Loans, Individually Evaluated for Impairment	29,280	47,154
Loans, Collectively Evaluated for Impairment	10,555,921	10,679,039
Total	10,585,201	10,726,193
Residential Properties
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Individually	87	87
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	8,147	8,219
Total Allowance for Credit Losses	8,234	8,306
Loans, Individually Evaluated for Impairment	4,027	3,479
Loans, Collectively Evaluated for Impairment	6,265,212	6,373,745
Total	6,269,239	6,377,224
Commercial real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Individually	1,003	1,834
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	4,250	6,880
Total Allowance for Credit Losses	5,253	8,714
Loans, Individually Evaluated for Impairment	20,848	34,278
Loans, Collectively Evaluated for Impairment	1,048,805	1,167,785
Total	1,069,653	1,202,063
Land and Construction
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	287	164
Total Allowance for Credit Losses	287	164
Loans, Collectively Evaluated for Impairment	158,326	157,630
Total	158,326	157,630
Commercial and Industrial Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Individually	933	3,122
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	16,757	13,399
Total Allowance for Credit Losses	17,690	16,521
Loans, Individually Evaluated for Impairment	4,405	9,397
Loans, Collectively Evaluated for Impairment	3,079,945	2,975,361
Total	3,084,350	2,984,758
Consumer Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses, Evaluated for Impairment, Collectively	21	26
Total Allowance for Credit Losses	21	26
Loans, Collectively Evaluated for Impairment	3,633	4,518
Total	$ 3,633	$ 4,518