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FEDERAL HOME LOAN BANK ADVANCES AND OTHER BORROWINGS - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Debt Instrument [Line Items]    
Overnight borrowings with FHLB $ 122,085  
Unused commitments from FHLB 1,800,000  
Unused short-term or overnight borrowings from correspondent banks 22,000  
Unused short-term or overnight borrowings from FRB 1,600,000  
Federal Reserve Bank of New York [Member]    
Debt Instrument [Line Items]    
Overnight borrowings with FHLB $ 122,100 $ 0