DERIVATIVES AND HEDGING ACTIVITIES - Cash Flow Hedges (Details) - USD ($)	1 Months Ended	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jul. 01, 2022	Feb. 28, 2022	Oct. 31, 2018
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Non-interest income related to changes in the fair value of derivative	$ 45,900,000	$ 0	$ 0	$ 0	$ 0
Loan interest income		668,000		1,000,000.0
Terminated interest rate swap		$ 2,000,000.0	$ 2,000,000.0	$ 4,000,000.0	$ 4,000,000.0
Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivatives							$ 300,000,000
Derivative, fixed interest rate							1.6725%
Initial floating rate of interest						1.78671%	1.12%
Interest Rate Swap | Cash flow hedges
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notional amount of derivatives	$ 400,000,000							$ 400,000,000
Derivative, fixed interest rate								3.018%