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FHLB BORROWINGS - Others (Details) - Federal Home Loan Bank Advances - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Borrowed funds    
Percentage of carrying value pledged as collateral 83.00%  
Carrying value of the loans pledged as collateral $ 1,060.0 $ 1,270.0
Available borrowing capacity 300.3  
Amortized borrowing capacity 46.9 70.6
Amount outstanding $ 0.0 $ 0.0