COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Daily average required reserves	$ 6.3	$ 58.0
Deposits with other financial institutions	131.4
Uninsured deposits with other financial institutions	11.6	3.7
Reserve for Off-balance Sheet Activities
Off-balance sheet credit risks, amount, liability	2.6	$ 1.4
Cash Flow Hedging
Deposits with other financial institutions serves as collateral for cash flow hedge	$ 116.8