LOANS, ALLOWANCE FOR CREDIT LOSSES AND IMPAIRED LOANS - Acquired Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance	$ 1,460,792	$ 1,411,784
Carrying amount	$ 1,437,884	1,393,845
Receivables Acquired with Deteriorated Credit Quality
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance		7,000
Carrying amount		6,904
Non-PCI Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance		136,192
Carrying amount		134,522
Non-PCI Loans | Acquired Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding balance		143,192
Carrying amount		$ 141,426