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LOANS AND LEASES RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES ON LOANS AND LEASES - Loan Modifications for Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 21,591	$ 4,184	$ 37,977	$ 9,288
Loan modifications	56,932	9,288	56,932	9,288
30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	634	492	634	492
60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	348	459	348	459
90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	4,160	401	4,160	401
Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	51,790	7,936	51,790	7,936
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	19,717	3,592	23,184	8,464
Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	1,790	180	14,676	269
Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	35	183	68	264
Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	49	$ 229	49	291
Commercial and industrial, including specialized lending
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 3,753		$ 5,740	$ 169
Percentage of Total by Financing Class	0.06%		0.09%	0.00%
Interest Rate Reduction (%)	0	0	0	0
Debt Forgiven	$ 0	$ 0	$ 0	$ 0
Loan modifications	17,844	169	17,844	169
Commercial and industrial, including specialized lending | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0	0	0	0
Commercial and industrial, including specialized lending | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0	0	0	0
Commercial and industrial, including specialized lending | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	3,743	169	3,743	169
Commercial and industrial, including specialized lending | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	14,101	$ 0	14,101	0
Commercial and industrial, including specialized lending | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 1,997		$ 1,997	$ 169
Term Extension and Payment Deferral (in months)	1 month	0 months	1 month	4 months
Commercial and industrial, including specialized lending | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 1,756		$ 3,743	$ 0
Term Extension and Payment Deferral (in months)	7 months	0 months	5 months	0 months
Commercial and industrial, including specialized lending | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0		$ 0	$ 0
Commercial and industrial, including specialized lending | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0		0	0
Commercial real estate non-owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 17,265		$ 17,265
Percentage of Total by Financing Class	1.44%		1.44%
Interest Rate Reduction (%)	0	0	0
Debt Forgiven	$ 0	$ 0	$ 0
Loan modifications	17,265		17,265
Commercial real estate non-owner occupied | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Commercial real estate non-owner occupied | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Commercial real estate non-owner occupied | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Commercial real estate non-owner occupied | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	17,265		17,265
Commercial real estate non-owner occupied | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 17,265		$ 17,265
Term Extension and Payment Deferral (in months)	12 months	0 months	12 months
Commercial real estate non-owner occupied | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0		$ 0
Term Extension and Payment Deferral (in months)	0 months	0 months	0 months
Commercial real estate non-owner occupied | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0		$ 0
Commercial real estate non-owner occupied | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	0		$ 0
Commercial real estate owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 169
Percentage of Total by Financing Class				0.02%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications		$ 169		169
Commercial real estate owner occupied | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		0		0
Commercial real estate owner occupied | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		0		0
Commercial real estate owner occupied | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		169		169
Commercial real estate owner occupied | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications		0		0
Commercial real estate owner occupied | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 169
Term Extension and Payment Deferral (in months)			0 months	4 months
Commercial real estate owner occupied | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Commercial real estate owner occupied | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0
Commercial real estate owner occupied | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans				$ 0
Multifamily
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 10,691
Percentage of Total by Financing Class			0.52%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications	10,691		10,691
Multifamily | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Multifamily | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	10,691		10,691
Multifamily | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Multifamily | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 10,691
Term Extension and Payment Deferral (in months)			5 months	0 months
Multifamily | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Multifamily | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			0
Residential real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 53
Percentage of Total by Financing Class			0.01%
Interest Rate Reduction (%)			0	0
Debt Forgiven			$ 0	$ 0
Loan modifications	99		99
Residential real estate | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0		0
Residential real estate | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	99		99
Residential real estate | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Term Extension and Payment Deferral (in months)			0 months	0 months
Residential real estate | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 53
Term Extension and Payment Deferral (in months)			5 months	0 months
Residential real estate | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			$ 0
Residential real estate | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans			0
Manufactured housing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 131	$ 281	$ 131	$ 350
Percentage of Total by Financing Class	0.36%	0.67%	0.36%	0.84%
Interest Rate Reduction (%)	0.043	0.035	0.043	0.029
Debt Forgiven	$ 0	$ 0	$ 0	$ 0
Loan modifications	477	350	477	350
Manufactured housing | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	124	0	124	0
Manufactured housing | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	36	0	36	0
Manufactured housing | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	0	0	0	0
Manufactured housing | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	317	350	317	350
Manufactured housing | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 82	$ 52	$ 82	$ 59
Term Extension and Payment Deferral (in months)	50 months	47 months	50 months	49 months
Manufactured housing | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0	$ 0	$ 0	$ 0
Term Extension and Payment Deferral (in months)	0 months	0 months	0 months	0 months
Manufactured housing | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0	$ 0	$ 0	$ 0
Manufactured housing | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	49	229	49	291
Personal installment
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 442	$ 3,903	$ 4,097	$ 8,600
Percentage of Total by Financing Class	0.09%	0.52%	0.86%	1.14%
Interest Rate Reduction (%)	0	0	0	0
Debt Forgiven	$ 41	$ 100	$ 141	$ 166
Loan modifications	10,556	8,600	10,556	8,600
Personal installment | 30-59 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	510	492	510	492
Personal installment | 60-89 Days past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	312	459	312	459
Personal installment | 90 Days or more past due
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	417	63	417	63
Personal installment | Current
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loan modifications	9,317	7,586	9,317	7,586
Personal installment | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 373	$ 3,540	$ 3,840	$ 8,067
Term Extension and Payment Deferral (in months)	4 months	5 months	6 months	5 months
Personal installment | Payment Deferral
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 34	$ 180	$ 189	$ 269
Term Extension and Payment Deferral (in months)	7 months	6 months	7 months	6 months
Personal installment | Debt Forgiveness
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 35	$ 183	$ 68	$ 264
Personal installment | Interest Rate Reduction and Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost of loans	$ 0	$ 0	$ 0	$ 0

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