PREMISES AND EQUIPMENT AND LEASES - Contractual Lease Maturity Schedule (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Within one year	$ 4,428	$ 4,634
After one but within two years	3,978	4,121
After two but within three years	3,430	3,684
After three but within four years	3,227	3,132
After four but within five years	3,047	2,918
After five years	6,605	9,303
Total lease payments	24,715	27,792
Discount on cash flows	4,056	4,656
Operating lease liability classified as other liabilities	$ 20,659	$ 23,136