INVESTMENTS (Amortized Cost and Fair Values of HTM Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Held-to-maturity, Amortized Cost
Due in one year or less	$ 0
Due after one year through five years	1,285
Due after five years through ten years	20,527
Due after ten years	60,643
Due in one year or less	82,939
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date	82,455
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, without Single Maturity Date	457,619
Debt Securities, Held-to-maturity, Maturity, without Single Maturity Date, Fair Value	428,060
Amortized Cost	540,074	$ 546,583
Held-to-maturity, Fair Value
Due in one year or less	0
Due after one year through five years	1,272
Due after five years through ten years	19,720
Due after ten years	61,947
Fair value, total	$ 510,999	$ 506,193