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MERGERS AND ACQUISITIONS - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jan. 22, 2022
Jan. 31, 2022
Mar. 31, 2022
Mar. 31, 2021
Business Acquisition [Line Items]        
Merger expenses     $ 29.0 $ 0.0
Howard        
Business Acquisition [Line Items]        
Assets acquired as a result of merger $ 2,362.0      
Loans and deposits acquired as a result of merger 1,800.0      
Value of acquisition 443.0      
Number of shares issued (in shares)   34,100,000    
Merger expenses     $ 28.6  
Financing receivable, purchased with credit deterioration, amount at purchase price 186.9      
Financing receivable, purchased with credit deterioration, allowance for credit loss at acquisition date 10.0      
Financing receivable, purchased with credit deterioration, discount (premium) 5.4      
Financing receivable, purchased with credit deterioration, fair value $ 171.5      
Howard | Common Stock        
Business Acquisition [Line Items]        
Number of shares issued (in shares) 34,074,495      
Common shares to be acquired (in shares) 18,930,329