LOAN SERVICING RIGHTS - Schedule of Carrying Value of Loan Servicing Rights Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Servicing Assets at Fair Value [Line Items]
Total loan servicing rights	$ 174,269	$ 174,652
Residential mortgage
Servicing Assets at Fair Value [Line Items]
Total loan servicing rights	171,968	171,915	$ 149,986	$ 147,014
SBA
Servicing Assets at Fair Value [Line Items]
Total loan servicing rights	$ 2,301	$ 2,737	$ 3,166	$ 3,443