DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Schedule of Net Gains (Losses) Relating to Free-Standing Derivative Instruments (Details) - Mortgage banking derivative instruments - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Forward contracts related to mortgage loans held for sale
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ 15,705	$ (11,944)	$ (5,344)
Interest rate lock commitments
Derivative [Line Items]
Gain (loss) on derivative instruments, net, pretax, total	$ (39,816)	$ 43,942	$ (3,910)