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FEDERAL HOME LOAN BANK ADVANCES - FHLB ADVANCES (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
FHLB advances    
Total FHLB advances $ 270,000 $ 380,000
Additional collateralized advances available 1,000,000 730,000
Overnight advances    
FHLB advances    
Total FHLB advances   110,000
Fixed interest rate advances    
FHLB advances    
Total FHLB advances 270,000 270,000
Various other unsecured lines of credit    
FHLB advances    
Unsecured lines of credit $ 100,000 $ 100,000