SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Impact to Financial Statements Upon Adoption of ASC 326 (Details) - USD ($) $ in Thousands	Jan. 01, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses on off-balance sheet commitments	$ (137)
Total impact from ASC 326 adoption	3,909	$ 583,681	$ 532,980	$ 546,388	$ 527,122
Allowance For Credit Losses on Loans [Member]
Summary Of Significant Accounting Policies [Line Items]
Assets	4,046
Tax Effect [Member]
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses on off-balance sheet commitments	51
Total impact from ASC 326 adoption	(1,439)			$ 550,297
Tax Effect [Member] | Allowance For Credit Losses on Loans [Member]
Summary Of Significant Accounting Policies [Line Items]
Assets	(1,490)
Impact to Consolidated Statement of Condition from ASC-326 Adoption [Member]
Summary Of Significant Accounting Policies [Line Items]
Allowance for credit losses on off-balance sheet commitments	(188)
Total impact from ASC 326 adoption	5,348
Impact to Consolidated Statement of Condition from ASC-326 Adoption [Member] | Allowance For Credit Losses on Loans [Member]
Summary Of Significant Accounting Policies [Line Items]
Assets	$ 5,536