v3.21.2
SECURITIES - Additional Information (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Schedule Of Available For Sale Securities [Line Items]    
Weighted average yield, total 4.30% 5.32%
US Treasury Securities | Other    
Schedule Of Available For Sale Securities [Line Items]    
Securities pledged as collateral $ 0.5 $ 0.5
Agency mortgage-backed Securities    
Schedule Of Available For Sale Securities [Line Items]    
Securities pledged as collateral $ 169.7  
Agency Mortgage-backed Securities and Beneficial interests in FHLMC securitization    
Schedule Of Available For Sale Securities [Line Items]    
Weighted average yield, total 2.00% 2.39%