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Securities - Schedule of Unrealized Losses on Available-for-Sale of Securities (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Fair Value    
Less than 12 Months $ 645,597 $ 473,204
12 Months or Longer 253,122 268,309
Total 898,719 741,513
Unrealized Losses    
Less than 12 Months 7,510 3,583
12 Months or Longer 20,759 19,440
Total 28,269 23,023
U.S. Treasuries    
Fair Value    
Less than 12 Months 0 0
12 Months or Longer 28,906 38,936
Total 28,906 38,936
Unrealized Losses    
Less than 12 Months 0 0
12 Months or Longer 1,966 1,925
Total 1,966 1,925
Obligations of U.S. Government sponsored entities    
Fair Value    
Less than 12 Months 26,669 0
12 Months or Longer 141,157 141,606
Total 167,826 141,606
Unrealized Losses    
Less than 12 Months 189 0
12 Months or Longer 12,123 11,653
Total 12,312 11,653
Obligations of U.S. states and political subdivisions    
Fair Value    
Less than 12 Months 9,391 2,530
12 Months or Longer 61,099 65,279
Total 70,490 67,809
Unrealized Losses    
Less than 12 Months 56 2
12 Months or Longer 5,930 5,212
Total 5,986 5,214
U.S. Government agencies    
Fair Value    
Less than 12 Months 187,441 179,250
12 Months or Longer 11,620 12,051
Total 199,061 191,301
Unrealized Losses    
Less than 12 Months 2,289 2,129
12 Months or Longer 248 228
Total 2,537 2,357
U.S. Government sponsored entities    
Fair Value    
Less than 12 Months 422,096 291,424
12 Months or Longer 7,889 7,990
Total 429,985 299,414
Unrealized Losses    
Less than 12 Months 4,976 1,452
12 Months or Longer 443 369
Total 5,419 1,821
U.S. corporate debt securities    
Fair Value    
Less than 12 Months 0 0
12 Months or Longer 2,451 2,447
Total 2,451 2,447
Unrealized Losses    
Less than 12 Months 0 0
12 Months or Longer 49 53
Total $ 49 $ 53