DERIVATIVES - Disclosure by Type of Financial Instrument (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Credit Risk Contract [Member]
Derivatives, Fair Value [Line Items]
Credit Risk Derivative Liabilities, at Fair Value	$ 300	$ 100
Fair Value Hedges \| Matched interest rate swaps \| Accrued interest and other liabilities
Derivatives, Fair Value [Line Items]
Gross amounts of recognized liabilities	68,932	29,189
Derivative Liability, Fair Value, Gross Asset	(71,750)	(14,577)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral		$ (14,612)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$ (2,818)

Fair value of credit risk derivative liability.

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