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, 2022	Dec. 31, 2021	Dec. 31, 2020
Other noninterest income | Interest rate contract
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ 6	$ 0	$ 0
Mortgage banking activity | Interest rate lock commitments
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	(10,506)	(39,816)	43,942
Mortgage banking activity | Forward contracts related to mortgage loans held for sale
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ 3,209	$ 15,705	$ (11,944)