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BUSINESS SEGMENTS - Additional Information (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Sep. 30, 2021
segment
Sep. 30, 2020
USD ($)
Number of Operating Segments | segment   2  
Banking [Member]      
Federal income tax benefit | $ $ 3.3   $ 3.3