Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES (Narrative) (Details)

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COMMITMENTS AND CONTINGENCIES (Narrative) (Details) - USD ($)
$ in Millions
Mar. 31, 2019
Dec. 31, 2018
Other Commitments [Line Items]    
Daily average required reserves $ 75.3  
Deposits with other financial institutions 74.4  
Uninsured deposits with other financial institutions 33.1  
Cash Flow Hedges    
Other Commitments [Line Items]    
Deposits with other financial institutions serves as collateral 38.9  
Reserve for Off-balance Sheet Activities    
Other Commitments [Line Items]    
Off-balance sheet credit risks, amount, liability $ 3.4 $ 1.4