v3.26.3
SECURITIES - Schedule of Information Related to the Amortized Cost, Fair Value and Allowance for Credit Losses of Securities Available-for-Sale and Related Gross Unrealized Gains and Losses (Details) - USD ($)
Sep. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-Sale [Abstract]    
Amortized Cost $ 1,169,932,000 $ 1,195,317,000
Gross Unrealized Gain 20,000 1,107,000
Gross Unrealized Losses (213,939,000) (144,362,000)
Allowance for Credit Losses 0 0
Fair Value 956,013,000 1,052,062,000
U.S. Treasury securities    
Debt Securities, Available-for-Sale [Abstract]    
Amortized Cost 29,894,000 10,117,000
Gross Unrealized Gain 0 2,000
Gross Unrealized Losses (486,000) 0
Allowance for Credit Losses 0 0
Fair Value 29,408,000 10,119,000
U.S. government sponsored agencies    
Debt Securities, Available-for-Sale [Abstract]    
Amortized Cost 128,374,000 136,772,000
Gross Unrealized Gain 0 82,000
Gross Unrealized Losses (24,398,000) (21,164,000)
Allowance for Credit Losses 0 0
Fair Value 103,976,000 115,690,000
Mortgage-backed securities: residential    
Debt Securities, Available-for-Sale [Abstract]    
Amortized Cost 481,247,000 506,734,000
Gross Unrealized Gain 16,000 892,000
Gross Unrealized Losses (70,150,000) (53,463,000)
Allowance for Credit Losses 0 0
Fair Value 411,113,000 454,163,000
State and municipal securities    
Debt Securities, Available-for-Sale [Abstract]    
Amortized Cost 530,417,000 541,694,000
Gross Unrealized Gain 4,000 131,000
Gross Unrealized Losses (118,905,000) (69,735,000)
Allowance for Credit Losses 0 0
Fair Value $ 411,516,000 $ 472,090,000