v3.26.3
Investment Securities - Summary of Available-for-sale Investment Securities (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Schedule of Available-for-sale Securities    
Amortized Cost $ 934,740 $ 1,076,980
Gross Unrealized Gains 727 2,570
Gross Unrealized Losses (130,348) (95,183)
Fair Value [1] 805,119 984,367
U.S. Treasury and government agencies    
Schedule of Available-for-sale Securities    
Amortized Cost 17,712 17,386
Gross Unrealized Gains 0 213
Gross Unrealized Losses (727) (19)
Fair Value 16,985 17,580
U.S. government sponsored agencies    
Schedule of Available-for-sale Securities    
Amortized Cost 203,535 212,282
Gross Unrealized Gains 0 504
Gross Unrealized Losses (18,513) (6,456)
Fair Value 185,022 206,330
States and political subdivisions    
Schedule of Available-for-sale Securities    
Amortized Cost 120,480 189,131
Gross Unrealized Gains 0 103
Gross Unrealized Losses (22,455) (18,402)
Fair Value 98,025 170,832
Residential mortgage-backed securities    
Schedule of Available-for-sale Securities    
Amortized Cost 532,648 606,292
Gross Unrealized Gains 727 1,749
Gross Unrealized Losses (79,714) (64,003)
Fair Value 453,661 544,038
Commercial mortgage-backed securities    
Schedule of Available-for-sale Securities    
Amortized Cost 57,365 47,889
Gross Unrealized Gains 0 1
Gross Unrealized Losses (8,793) (6,086)
Fair Value 48,572 41,804
Bank-issued trust preferred securities    
Schedule of Available-for-sale Securities    
Amortized Cost 3,000 4,000
Gross Unrealized Gains 0 0
Gross Unrealized Losses (146) (217)
Fair Value $ 2,854 $ 3,783
[1]     Available-for-sale investment securities and held-to-maturity investment securities are presented net of allowance for credit losses of $0 and $233, respectively, at September 30, 2026, and $0 and $236, respectively, at December 31, 2025.