DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Net Gains (Losses) Relating to Free-Standing Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other noninterest income | Interest rate contract
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ (272)	$ 6	$ 0
Other noninterest income | Risk participation agreement
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	195	0	0
Mortgage banking activity | Interest rate lock commitments
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	2,201	(10,506)	(39,816)
Mortgage banking activity | Forward contracts related to mortgage loans held for sale
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ (8,289)	$ 3,209	$ 15,705