DERIVATIVES - Disclosure by Type of Financial Instrument (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	$ 255,984	$ 357,698
Derivative Liability, Fair Value, Gross Asset	(321,751)	(415,993)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(65,767)	(58,295)
Fair Value Hedges \| Matched interest rate swaps \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	117,324	152,816
Derivative Liability, Fair Value, Gross Asset	(270,678)	(314,048)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(153,354)	(161,232)
Fair Value Hedges \| Foreign Exchange \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	145,556	204,882
Derivative Liability, Fair Value, Gross Asset	(55,959)	(101,945)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	89,597	102,937
Fair Value Hedges \| Cash Flow Hedging \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	(6,896)	0
Derivative Liability, Fair Value, Gross Asset	4,886	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$ (2,010)	$ 0

Fair value, after offset of derivative liability, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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