BORROWINGS, Outstanding Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
BORROWINGS
Subordinated notes payable, includes premium of $0 and $249, respectively	$ 0	$ 3,249
Securities sold under agreement to repurchase, short term	304,595	346,652
Overnight borrowings	53,000	768,400
Other FHLB borrowings, includes discount of $217 and $319, respectively	407,603	19,474
Total borrowings	765,198	1,137,775
Subordinated notes payable, premium	0	249
Other FHLB borrowings, includes discount	$ 217	$ 319