v3.26.3
Securities - HTM in an Unrealized Loss Position (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
item
Dec. 31, 2025
USD ($)
item
Number of Securities    
Unrealized loss for less than twelve months | item 34 2
Unrealized loss for twelve months or longer | item 270 281
Total | item 304 283
Fair Value    
Unrealized loss for less than twelve months $ 147,711 $ 11,837
Unrealized loss for twelve months or longer 505,797 583,625
Total 653,508 595,462
Unrealized Losses    
Unrealized loss for less than twelve months 6,157 2
Unrealized loss for twelve months or longer 80,570 54,636
Total $ 86,727 $ 54,638
Residential mortgage-backed securities    
Number of Securities    
Unrealized loss for less than twelve months | item 6 1
Unrealized loss for twelve months or longer | item 46 45
Total | item 52 46
Fair Value    
Unrealized loss for less than twelve months $ 52,087 $ 11,337
Unrealized loss for twelve months or longer 197,629 214,351
Total 249,716 225,688
Unrealized Losses    
Unrealized loss for less than twelve months 2,725 2
Unrealized loss for twelve months or longer 28,482 18,306
Total $ 31,207 $ 18,308
Commercial mortgage-backed securities    
Number of Securities    
Unrealized loss for less than twelve months | item 3  
Unrealized loss for twelve months or longer | item 13 20
Total | item 16 20
Fair Value    
Unrealized loss for less than twelve months $ 20,087  
Unrealized loss for twelve months or longer 74,163 $ 102,228
Total 94,250 102,228
Unrealized Losses    
Unrealized loss for less than twelve months 621  
Unrealized loss for twelve months or longer 8,362 6,088
Total $ 8,983 $ 6,088
Collateralized mortgage obligations    
Number of Securities    
Unrealized loss for less than twelve months | item 6  
Unrealized loss for twelve months or longer | item 50 51
Total | item 56 51
Fair Value    
Unrealized loss for less than twelve months $ 59,880  
Unrealized loss for twelve months or longer 179,757 $ 206,483
Total 239,637 206,483
Unrealized Losses    
Unrealized loss for less than twelve months 1,684  
Unrealized loss for twelve months or longer 34,172 25,577
Total $ 35,856 $ 25,577
States and political subdivisions    
Number of Securities    
Unrealized loss for less than twelve months | item 19 1
Unrealized loss for twelve months or longer | item 161 165
Total | item 180 166
Fair Value    
Unrealized loss for less than twelve months $ 15,657 $ 500
Unrealized loss for twelve months or longer 54,248 60,563
Total 69,905 61,063
Unrealized Losses    
Unrealized loss for less than twelve months 1,127  
Unrealized loss for twelve months or longer 9,554 4,665
Total $ 10,681 $ 4,665