LOANS AND ALLOWANCE FOR CREDIT LOSSES - Troubled Debt Restructurings (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) contract	Sep. 30, 2021 contract item	Sep. 30, 2022 USD ($) item contract	Sep. 30, 2021 contract item	Dec. 31, 2021 USD ($)
Troubled debt restructurings
Number of loan modifications | item		0	1	0
Recorded investment of troubled debt restructurings	$ 11,700,000		$ 11,700,000		$ 11,000,000.0
Recorded investment of troubled debt restructurings that were nonaccruing	$ 2,900,000		$ 2,900,000		1,000,000.0
Number of troubled debt restructurings that defaulted | contract	0	0	0	0
Commercial
Troubled debt restructurings
Recorded investment of troubled debt restructurings	$ 2,300,000		$ 2,300,000		408,000
Recorded investment of troubled debt restructurings that were nonaccruing	$ 2,100,000		$ 2,100,000		$ 190,000