v3.26.1
Investment Securities - Summary of Available-for-sale Securities with Unrealized Loss (Details)
$ in Thousands
Mar. 31, 2026
USD ($)
security
Dec. 31, 2025
USD ($)
security
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value $ 175,646 $ 71,109
Less than 12 months, unrealized loss $ 3,184 $ 888
Less than 12 months, Number of securities | security 124 30
12 months or more, fair value $ 719,137 $ 791,394
12 months or more, unrealized loss $ 98,249 $ 94,295
12 months or more, Number of securities | security 367 423
Total fair value $ 894,783 $ 862,503
Total unrealized loss 101,433 95,183
U.S. Treasury and government agencies    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 7,560 5,319
Less than 12 months, unrealized loss $ 30 $ 16
Less than 12 months, Number of securities | security 11 3
12 months or more, fair value $ 89 $ 741
12 months or more, unrealized loss $ 1 $ 3
12 months or more, Number of securities | security 1 4
Total fair value $ 7,649 $ 6,060
Total unrealized loss 31 19
U.S. government sponsored agencies    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 90,263 47,059
Less than 12 months, unrealized loss $ 1,570 $ 341
Less than 12 months, Number of securities | security 20 10
12 months or more, fair value $ 100,032 $ 127,311
12 months or more, unrealized loss $ 6,771 $ 6,115
12 months or more, Number of securities | security 21 27
Total fair value $ 190,295 $ 174,370
Total unrealized loss 8,341 6,456
States and political subdivisions    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 23,181 3,129
Less than 12 months, unrealized loss $ 1,034 $ 460
Less than 12 months, Number of securities | security 45 5
12 months or more, fair value $ 139,190 $ 158,898
12 months or more, unrealized loss $ 19,717 $ 17,942
12 months or more, Number of securities | security 99 134
Total fair value $ 162,371 $ 162,027
Total unrealized loss 20,751 18,402
Residential mortgage-backed securities    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 33,499 13,310
Less than 12 months, unrealized loss $ 216 $ 62
Less than 12 months, Number of securities | security 41 10
12 months or more, fair value $ 438,322 $ 461,661
12 months or more, unrealized loss $ 65,464 $ 63,941
12 months or more, Number of securities | security 224 235
Total fair value $ 471,821 $ 474,971
Total unrealized loss 65,680 64,003
Commercial mortgage-backed securities    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 21,143 2,292
Less than 12 months, unrealized loss $ 334 $ 9
Less than 12 months, Number of securities | security 7 2
12 months or more, fair value $ 38,692 $ 39,000
12 months or more, unrealized loss $ 6,108 $ 6,077
12 months or more, Number of securities | security 21 21
Total fair value $ 59,835 $ 41,292
Total unrealized loss 6,442 6,086
Bank-issued trust preferred securities    
Available-for-sale securities that had an unrealized loss:    
Less than 12 months, fair value 0 0
Less than 12 months, unrealized loss $ 0 $ 0
Less than 12 months, Number of securities | security 0 0
12 months or more, fair value $ 2,812 $ 3,783
12 months or more, unrealized loss $ 188 $ 217
12 months or more, Number of securities | security 1 2
Total fair value $ 2,812 $ 3,783
Total unrealized loss $ 188 $ 217