DERIVATIVES - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) entity	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) entity	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($) entity	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Derivative [Line Items]
Derivative, Notional Amount	$ 20,062,151		$ 20,062,151			$ 19,339,867
Number of counterparties | entity	6		6			6
Derivative liabilities	$ 274,218		$ 274,218			$ 263,131
Derivative Liability, Fair Value of Collateral, net of restricted cash	30,100		30,100			116,200
Derivative Liability, Fair Value of Collateral	46,700		46,700			137,800
Restricted Cash	16,500		16,500			21,600
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax	2,322	$ (1,824)	2,322	$ (1,824)	$ (794)	$ 3,755	$ (331)	$ 0
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	700		700
Client derivative fees	1,160	1,612	3,173	4,444
Available-for-sale Securities, Gross Realized Losses	$ 1,000	$ 0	$ 6,900	$ 400
Foreign Exchange
Derivative [Line Items]
Number of counterparties | entity	4		4			5
Credit Risk Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 219,300		$ 219,300			$ 232,500
Credit Risk Derivative Liabilities, at Fair Value	100		100			100
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Derivative, Notional Amount	38,800		38,800			25,200
Other Credit Derivatives [Member]
Derivative [Line Items]
Derivative, Notional Amount	40,800		40,800			25,500
Credit Risk Derivative Liabilities, at Fair Value	300		300			300
Other Contract-Mortgage
Derivative [Line Items]
Derivative, Notional Amount	$ 104,500		$ 104,500			109,200
Commodity
Derivative [Line Items]
Number of counterparties | entity	1		1
Derivative
Derivative [Line Items]
Derivative liabilities	$ 51,100		$ 51,100			95,700
Derivative | Foreign Exchange
Derivative [Line Items]
Derivative, Notional Amount						7,000,000
Derivative liabilities	4,600		4,600			23,900
Derivative | Commodity
Derivative [Line Items]
Derivative liabilities	200		200
Accrued interest and other liabilities | Derivative
Derivative [Line Items]
Derivative, Notional Amount	2,200,000		2,200,000			$ 2,200,000
Accrued interest and other liabilities | Derivative | Foreign Exchange
Derivative [Line Items]
Derivative, Notional Amount	$ 7,400,000		$ 7,400,000