LOAN SERVICING - Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance			$ 10,147
Ending balance	$ 20,156		20,156
Mortgage Loans
LOANS AND THE ALLOWANCE FOR LOAN LOSSES
Mortgage loans serviced for others	1,690,000		1,690,000		$ 955,800
Servicing Asset at Fair Value, Amount [Roll Forward]
Beginning balance	20,133	$ 10,089	10,147	$ 7,994
Acquired	0	0	10,469	0
Capitalized servicing rights	227	144	526	451
Attributable to payments and principal reductions	(631)	(362)	(1,621)	(1,048)
Attributable to changes in valuation inputs and assumptions	427	569	635	3,043
Total fair value adjustment	(204)	207	(986)	1,995
Ending balance	$ 20,156	$ 10,440	$ 20,156	$ 10,440