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INVESTMENTS - Other Equity Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Federal Home Loan Bank Stock and Federal Reserve Bank Stock [Abstract]    
Federal Reserve Bank stock, at cost $ 38,923 $ 38,873
Federal Home Loan Bank of Atlanta stock, at cost 38,789 29,668
Other 677 677
Total other investments, at cost $ 78,389 $ 69,218