DERIVATIVES DERIVATIVES - Disclosure by Type of Financial Instrument (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	$ 14,808	$ 11,916
Derivative Liability, Fair Value, Gross Asset	(13,688)	(12,260)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	1,120
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		(344)
Fair Value Hedges \| Pay fixed interest rate swaps with counterparty \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	377	440
Derivative Liability, Fair Value, Gross Asset	0	0
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	377
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		440
Fair Value Hedges \| Matched interest rate swaps \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	14,431	11,476
Derivative Liability, Fair Value, Gross Asset	(13,688)	(12,260)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	743
Derivative Asset, Fair Value, Amount Not Offset Against Collateral		$ (784)

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, 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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