SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands	Jan. 01, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to new accounting pronouncements		$ 166,388	$ 211,455	$ 199,699
Allowance for loan losses		19,659	21,025	20,924
Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to new accounting pronouncements		211,859	$ 188,877	$ 168,006
Forecast | Securities Portfolio
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan losses	$ 0
Forecast | Unfunded Commitments
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Allowance for loan losses, net of tax	900
Allowance for loan losses	$ 1,200
Cumulative Effect, Period of Adoption, Adjustment | Maximum | Pro Forma | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Adjustments due to new accounting pronouncements		2,000
Allowance for loan losses, net of tax		$ 1,400