DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) instrument institution	Dec. 31, 2023 USD ($) instrument
Derivative [Line Items]
Notional amount	$ 7,802,391	$ 5,997,253
Interest rate cash flow hedge expense reclassified to interest income	$ 4,600	$ 1,200
Derivative transaction held for guarantee | instrument	154	188
Minimum
Derivative [Line Items]
Notional amount maturity period (in years)	1 year
Maximum
Derivative [Line Items]
Notional amount maturity period (in years)	11 years
Swap Guarantee
Derivative [Line Items]
Number of unrelated financial institutions | institution	1
Aggregate fair value of swaps to customers	$ 5,500	$ 7,300
Interest Rate Swap
Derivative [Line Items]
Notional amount	$ 600,000	$ 700,000
Derivative transaction held for guarantee | instrument	0	0
Cash
Derivative [Line Items]
Collateral value against obligations	$ 1,700
Derivatives Designated as Hedging Instruments
Derivative [Line Items]
Notional amount	$ 1,500,000	$ 750,000
Derivatives Designated as Hedging Instruments | Interest Rate Contract
Derivative [Line Items]
Number of derivative instruments | instrument	18	9
Purchase of derivatives	$ 29,700
Notional amount	$ 1,500,000