DERIVATIVE FINANCIAL INSTRUMENTS - Fair Value of Derivative Instruments (Details) - Derivatives not designated as hedging instruments - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Derivative [Line Items]
Notional	$ 3,669,431	$ 472,832
Total derivatives	(15,943)	(18,138)
Interest rate products | Other assets
Derivative [Line Items]
Notional	1,623,446	54,834
Derivative asset	100,307	2,625
Interest rate products | Other liabilities
Derivative [Line Items]
Notional	1,623,446	54,834
Derivative Liability	(100,307)	(2,847)
Interest rate lock commitments with customers | Other assets
Derivative [Line Items]
Notional	93,581	102,264
Derivative asset	1,585	1,991
Interest rate lock commitments with customers | Other liabilities
Derivative [Line Items]
Notional	2,958	12,813
Derivative Liability	(16)	(73)
Risk participation agreements | Other liabilities
Derivative [Line Items]
Notional		4,214
Derivative Liability		(3)
Forward sale commitments | Other assets
Derivative [Line Items]
Notional	51,559	63,664
Derivative asset	156	537
Forward sale commitments | Other liabilities
Derivative [Line Items]
Notional	40,395	67,032
Derivative Liability	(255)	(116)
FX forwards | Other assets
Derivative [Line Items]
Notional	1,015
Derivative asset	(61)
FX forwards | Other liabilities
Derivative [Line Items]
Notional	263
Derivative Liability	(1)
Risk participation agreements sold | Other liabilities
Derivative [Line Items]
Notional	52,956
Derivative Liability	(4)
Risk participation agreements purchased | Other assets
Derivative [Line Items]
Notional	66,635
Derivative asset	87
Financial derivatives related to sales of certain Visa Class B shares | Other liabilities
Derivative [Line Items]
Notional	113,177	113,177
Derivative Liability	$ (17,556)	$ (20,252)