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ADVANCES FROM FEDERAL HOME LOAN BANK (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
ADVANCES FROM FEDERAL HOME LOAN BANK    
Outstanding term advances from Federal Home Loan Bank $ 0 $ 0
Investment securities with carrying values 295,700 110,400
Loans with carrying values 2,100,000 2,120,000
Advance equivalents 1,530,000 $ 1,390,000
Federal Home Loan Bank of Des Moines    
ADVANCES FROM FEDERAL HOME LOAN BANK    
Credit under a borrowing arrangement $ 1,170,000