v3.26.3
Securities (Securities in a Continuous Unrealized Loss Position) (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 83 3
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 363,364 $ 2,130
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ (15,427) $ (6)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 97 99
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 437,716 $ 493,660
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ (125,501) $ (100,065)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 180 102
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 801,080 $ 495,790
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (140,928) $ (100,071)
Obligations of U.S. government agencies and U.S. government-sponsored enterprises    
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 4 2
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 1,215 $ 611
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ (77) $ (5)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 3 3
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 23,242 $ 23,582
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ (2,107) $ (1,769)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 7 5
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 24,457 $ 24,193
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (2,184) $ (1,774)
Mortgage-backed securities issued by U.S. government-sponsored agencies and U.S. government-sponsored enterprises    
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 78 1
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 361,569 $ 1,519
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ (15,280) $ (1)
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 89 91
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 397,647 $ 453,251
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ (122,809) $ (97,725)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 167 92
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 759,216 $ 454,770
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (138,089) $ (97,726)
Obligations of states and political subdivisions    
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 1  
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 580  
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ (70)  
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 0  
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 0  
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ 0  
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 1  
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 580  
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (70)  
Individual name issuer trust preferred debt securities    
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 0 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 0 $ 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ 0 $ 0
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 2 2
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 6,130 $ 6,103
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ (60) $ (83)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 2 2
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 6,130 $ 6,103
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (60) $ (83)
Corporate bonds    
Debt Securities, Available-for-sale [Line Items]    
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, number of securities | security 0 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, fair value $ 0 $ 0
Available for sale debt securities, securities in continuous unrealized loss position, less than 12 months, unrealized losses $ 0 $ 0
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, number of securities | security 3 3
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, fair value $ 10,697 $ 10,724
Available for sale debt securities, securities in continuous unrealized loss position, greater than 12 months, unrealized losses $ (525) $ (488)
Available for sale debt securities, securities in continuous unrealized loss position, number of securities | security 3 3
Available for sale debt securities, securities in continuous unrealized loss position, fair value $ 10,697 $ 10,724
Available for sale debt securities, securities in continuous unrealized loss position, unrealized losses $ (525) $ (488)