XML 62 R41.htm IDEA: XBRL DOCUMENT v3.25.3
Investment Securities - Amortized Cost and Estimated Fair Values of Investment Held to Maturity Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Jun. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Held to maturity securities:            
Amortized Cost $ 433,535   $ 481,280      
Gross Unrealized Gains 127   19      
Gross Unrealized Losses 40,122   56,565      
Estimated Fair Value 393,540   424,734      
Allowance for Credit Losses 95 $ 199 203 $ 101 $ 108 $ 94
U.S. Treasury and government agency securities            
Held to maturity securities:            
Amortized Cost 114,884   132,560      
Gross Unrealized Gains 0   0      
Gross Unrealized Losses 5,200   8,555      
Estimated Fair Value 109,684   124,005      
Allowance for Credit Losses 0   0      
Mortgage-backed securities            
Held to maturity securities:            
Amortized Cost 311,689   336,755      
Gross Unrealized Gains 101   0      
Gross Unrealized Losses 34,436   47,234      
Estimated Fair Value 277,354   289,521      
Allowance for Credit Losses 0   0      
Other debt securities            
Held to maturity securities:            
Amortized Cost 6,962   11,965      
Gross Unrealized Gains 26   19      
Gross Unrealized Losses 486   776      
Estimated Fair Value 6,502   11,208      
Allowance for Credit Losses $ 95   $ 203