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Investment Securities - Schedule of Debt Securities Expected Maturity (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Amortized Cost    
Due within 1 year $ 660  
Due after 1 but within 5 years 12,373  
Due after 5 but within 10 years 35,508  
Due after 10 years 563  
Amortized Cost 49,104  
Debt Securities, Held-to-maturity 419,009 $ 461,162
Estimated Fair Value    
Due within 1 year 658  
Due after 1 but within 5 years 11,772  
Due after 5 but within 10 years 29,595  
Due after 10 years 453  
Estimated Fair Value 42,478  
Debt Securities, Held-to-maturity, Fair Value 350,595 $ 386,205
Mortgage-Backed Securities [Member]    
Amortized Cost    
Debt Securities, Held-to-maturity [1] 369,905  
Estimated Fair Value    
Debt Securities, Held-to-maturity, Fair Value [1] 308,117  
Mortgage-Backed Securities [Member] | US Government Agencies Debt Securities [Member]    
Amortized Cost    
Debt Securities, Held-to-maturity 71,300  
Estimated Fair Value    
Debt Securities, Held-to-maturity, Fair Value 56,700  
Mortgage-Backed Securities [Member] | Obligations of U.S. Government-Sponsored Enterprises [Member]    
Amortized Cost    
Debt Securities, Held-to-maturity 298,600  
Estimated Fair Value    
Debt Securities, Held-to-maturity, Fair Value $ 251,400  
[1] Mortgage Backed Securities include an amortized cost of $71.3 million and a fair value of $56.7 million for Obligations of U.S. Government agencies issued by Ginnie Mae and an amortized cost of $298.6 million and a fair value of $251.4 million for Obligations of U.S. Government-sponsored enterprises issued by Fannie Mae and Freddie Mac.