LEASES - Supplemental Lease Information (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Balance Sheet:
Operating lease right-of-use asset classified as premises and equipment	$ 19,193	$ 20,746
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Premises and equipment, net	Premises and equipment, net
Operating lease liability classified as other liabilities	$ 19,658	$ 20,659
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Weighted average lease term, in years	7 years 7 months 17 days	7 years 8 months 1 day
Weighted average discount rate	4.21%	4.17%