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Investment Securities - Schedule of Carrying Value of Federal Home Loan Bank of Des Moines Stock and Federal Reserve Bank Stock (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]    
Federal Home Loan Bank of Des Moines Stock $ 32,000 $ 26,000
Federal Reserve Bank Stock 27,400 27,065
Total $ 59,400 $ 53,065