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Securities - Unrealized Loss Positions (Details)
$ in Thousands
 6 Months Ended
Jun. 30, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 46 45
12 months or more in an unrealized loss position | security 304 317
Total | security 350 362
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 1,461 $ 1,010
12 months or more in an unrealized loss position 56,522 69,769
Total 57,983 70,779
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 164,468 183,156
12 months or more in an unrealized loss position 561,119 667,783
Total $ 725,587 850,939
Effective duration (in years) 3 years  
Credit losses were determined $ 0 $ 0
Provision for credit losses on securities $ 0  
U.S. Treasury    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security   4
12 months or more in an unrealized loss position | security   1
Total | security   5
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position   $ 72
12 months or more in an unrealized loss position   387
Total   459
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position   49,788
12 months or more in an unrealized loss position   49,547
Total   $ 99,335
U.S. government agencies    
Securities Available-for-Sale, Number of Securities    
12 months or more in an unrealized loss position | security 8 8
Total | security 8 8
Securities Available-for-Sale, Unrealized Losses    
12 months or more in an unrealized loss position $ 735 $ 1,388
Total 735 1,388
Securities Available-for-Sale, Fair Value    
12 months or more in an unrealized loss position 38,141 37,814
Total $ 38,141 $ 37,814
U.S. government agencies mortgage-backed    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 1 1
12 months or more in an unrealized loss position | security 128 128
Total | security 129 129
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 138 $ 447
12 months or more in an unrealized loss position 8,774 11,517
Total 8,912 11,964
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 10,537 10,296
12 months or more in an unrealized loss position 85,546 89,981
Total $ 96,083 $ 100,277
States and political subdivisions    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 29 31
12 months or more in an unrealized loss position | security 26 27
Total | security 55 58
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 948 $ 455
12 months or more in an unrealized loss position 10,089 11,322
Total 11,037 11,777
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 81,110 85,457
12 months or more in an unrealized loss position 105,993 111,308
Total $ 187,103 $ 196,765
Collateralized mortgage obligations    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 2 3
12 months or more in an unrealized loss position | security 135 139
Total | security 137 142
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 17 $ 24
12 months or more in an unrealized loss position 35,526 43,177
Total 35,543 43,201
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 1,260 5,107
12 months or more in an unrealized loss position 310,256 328,708
Total $ 311,516 $ 333,815
Asset-backed securities    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 5 2
12 months or more in an unrealized loss position | security 7 13
Total | security 12 15
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 154 $ 4
12 months or more in an unrealized loss position 1,398 1,977
Total 1,552 1,981
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 15,257 1,068
12 months or more in an unrealized loss position 21,183 50,198
Total $ 36,440 $ 51,266
Collateralized loan obligations    
Securities Available-for-Sale, Number of Securities    
Less than 12 months in an unrealized loss position | security 9 4
12 months or more in an unrealized loss position | security   1
Total | security 9 5
Securities Available-for-Sale, Unrealized Losses    
Less than 12 months in an unrealized loss position $ 204 $ 8
12 months or more in an unrealized loss position   1
Total 204 9
Securities Available-for-Sale, Fair Value    
Less than 12 months in an unrealized loss position 56,304 31,440
12 months or more in an unrealized loss position   227
Total $ 56,304 $ 31,667