DERIVATIVES AND HEDGING ACTIVITIES - Fair Value of Derivatives (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Notional amount	$ 1,170,771	$ 1,335,485
Derivatives before netting, derivative assets	11,867	7,925
Netting adjustments/cash collateral, derivative assets	(9,096)	1,355
Derivative assets	2,771	9,280
Derivatives before netting, derivative Liabilities	(9,753)	(5,184)
Netting adjustments/cash collateral, derivative liabilities	3,072	3,921
Derivative liabilities	(6,681)	(1,263)
Concentration of credit risk, master netting arrangements
Derivatives, Fair Value [Line Items]
Right to reclaim cash in excess of fair value of derivative liability	6,000	(5,300)
Forward sale commitments
Derivatives, Fair Value [Line Items]
Notional amount	670,018	793,208
Derivatives before netting, derivative assets	5,079	723
Derivatives before netting, derivative Liabilities	(3,528)	(640)
Interest rate lock commitments
Derivatives, Fair Value [Line Items]
Notional amount	100,992	115,025
Derivatives before netting, derivative assets	683	2,487
Derivatives before netting, derivative Liabilities	(605)	(3)
Interest rate swaps
Derivatives, Fair Value [Line Items]
Notional amount	276,561	287,352
Derivatives before netting, derivative assets	5,619	4,381
Derivatives before netting, derivative Liabilities	(5,620)	(4,541)
Futures
Derivatives, Fair Value [Line Items]
Notional amount	93,200	139,900
Derivatives before netting, derivative assets	97	334
Derivatives before netting, derivative Liabilities	0	$ 0
Options
Derivatives, Fair Value [Line Items]
Notional amount	30,000
Derivatives before netting, derivative assets	389
Derivatives before netting, derivative Liabilities	$ 0