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Loans and Allowance for Credit Losses - Loan Risk Ratings (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Credit quality categories |  |  |  |  |
Prior | $ 1,472,043 |  | $ 1,472,043 |  | $ 1,195,244
Year One | 718,184 |  | 718,184 |  | 405,932
Year Two | 1,027,577 |  | 1,027,577 |  | 764,538
Year Three | 605,530 |  | 605,530 |  | 1,052,957
Year Four | 462,806 |  | 462,806 |  | 634,525
Year Five | 291,385 |  | 291,385 |  | 461,566
Revolving Loans | 219,433 |  | 219,433 |  | 239,292
Revolving Converted to Term Loans | 30,670 |  | 30,670 |  | 17,934
Total | 4,827,628 |  | 4,827,628 |  | 4,771,988
Current period gross charge-offs |  |  |  |  |
Total gross charge-offs | (787) | $ (962) | (1,513) | $ (1,616) |
Loans Evaluated By Performing Status |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 0 |  | 0 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 6,260 |  | 6,260 |  | 7,099
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 6,260 |  | 6,260 |  | 7,099
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | 0 |  | 0
Gross charge-offs, Year One |  |  | 0 |  | 0
Gross charge-offs, Year Two |  |  | 0 |  | 0
Gross charge-offs, Year Three |  |  | 0 |  | 0
Gross charge-offs, Year Four |  |  | 0 |  | 0
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | (431) |  | (584)
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs |  |  | (431) |  | (584)
Total loans by risk category |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 1,472,043 |  | 1,472,043 |  | 1,195,244
Year One | 718,184 |  | 718,184 |  | 405,932
Year Two | 1,027,577 |  | 1,027,577 |  | 764,538
Year Three | 605,530 |  | 605,530 |  | 1,052,957
Year Four | 462,806 |  | 462,806 |  | 634,525
Year Five | 291,385 |  | 291,385 |  | 461,566
Revolving Loans | 213,173 |  | 213,173 |  | 232,193
Revolving Converted to Term Loans | 30,670 |  | 30,670 |  | 17,934
Total | 4,821,368 |  | 4,821,368 |  | 4,764,889
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | (237) |  | (1,342)
Gross charge-offs, Year One |  |  | (99) |  | (23)
Gross charge-offs, Year Two |  |  | (332) |  | (401)
Gross charge-offs, Year Three |  |  | (96) |  | (1,820)
Gross charge-offs, Year Four |  |  | (302) |  | (246)
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | (16) |  | (17)
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs |  |  | (1,082) |  | (3,849)
Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 1,439,129 |  | 1,439,129 |  | 1,172,110
Year One | 708,086 |  | 708,086 |  | 405,414
Year Two | 990,753 |  | 990,753 |  | 757,185
Year Three | 603,762 |  | 603,762 |  | 1,030,804
Year Four | 462,774 |  | 462,774 |  | 632,577
Year Five | 291,385 |  | 291,385 |  | 461,566
Revolving Loans | 209,371 |  | 209,371 |  | 229,782
Revolving Converted to Term Loans | 30,636 |  | 30,636 |  | 17,422
Total | 4,735,896 |  | 4,735,896 |  | 4,706,860
Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 23,638 |  | 23,638 |  | 9,159
Year One | 5,653 |  | 5,653 |  | 518
Year Two | 35,155 |  | 35,155 |  | 2,964
Year Three | 0 |  | 0 |  | 19,746
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 1,084 |  | 1,084 |  | 1,120
Revolving Converted to Term Loans | 34 |  | 34 |  | 11
Total | 65,564 |  | 65,564 |  | 33,518
Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 9,276 |  | 9,276 |  | 13,975
Year One | 4,445 |  | 4,445 |  | 0
Year Two | 1,669 |  | 1,669 |  | 4,389
Year Three | 1,768 |  | 1,768 |  | 2,407
Year Four | 32 |  | 32 |  | 1,948
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 2,718 |  | 2,718 |  | 1,291
Revolving Converted to Term Loans | 0 |  | 0 |  | 501
Total | 19,908 |  | 19,908 |  | 24,511
Commercial real estate |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 1,043,175 |  | 1,043,175 |  | 837,589
Year One | 416,839 |  | 416,839 |  | 297,098
Year Two | 575,136 |  | 575,136 |  | 441,039
Year Three | 261,806 |  | 261,806 |  | 554,682
Year Four | 135,760 |  | 135,760 |  | 250,482
Year Five | 127,485 |  | 127,485 |  | 136,891
Revolving Loans | 16,181 |  | 16,181 |  | 25,941
Revolving Converted to Term Loans | 27,592 |  | 27,592 |  | 14,084
Total | 2,603,974 |  | 2,603,974 |  | 2,557,806
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | 0 |  | 0
Gross charge-offs, Year One |  |  | 0 |  | 0
Gross charge-offs, Year Two |  |  | 0 |  | 0
Gross charge-offs, Year Three |  |  | 0 |  | 0
Gross charge-offs, Year Four |  |  | 0 |  | 0
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | 0 |  | 0
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | 0 | 0 | 0 | 0 | 0
Commercial real estate | Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 1,018,604 |  | 1,018,604 |  | 822,391
Year One | 408,550 |  | 408,550 |  | 297,098
Year Two | 540,962 |  | 540,962 |  | 435,084
Year Three | 261,806 |  | 261,806 |  | 534,936
Year Four | 135,760 |  | 135,760 |  | 250,482
Year Five | 127,485 |  | 127,485 |  | 136,891
Revolving Loans | 15,334 |  | 15,334 |  | 24,966
Revolving Converted to Term Loans | 27,592 |  | 27,592 |  | 14,084
Total | 2,536,093 |  | 2,536,093 |  | 2,515,932
Commercial real estate | Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 21,491 |  | 21,491 |  | 7,514
Year One | 5,436 |  | 5,436 |  | 0
Year Two | 34,174 |  | 34,174 |  | 2,964
Year Three | 0 |  | 0 |  | 19,746
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 290 |  | 290 |  | 417
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 61,391 |  | 61,391 |  | 30,641
Commercial real estate | Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 3,080 |  | 3,080 |  | 7,684
Year One | 2,853 |  | 2,853 |  | 0
Year Two | 0 |  | 0 |  | 2,991
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 557 |  | 557 |  | 558
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 6,490 |  | 6,490 |  | 11,233
Residential real estate |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 352,026 |  | 352,026 |  | 298,249
Year One | 206,872 |  | 206,872 |  | 79,086
Year Two | 285,250 |  | 285,250 |  | 213,280
Year Three | 221,130 |  | 221,130 |  | 295,692
Year Four | 107,203 |  | 107,203 |  | 221,638
Year Five | 51,744 |  | 51,744 |  | 101,005
Revolving Loans | 124,268 |  | 124,268 |  | 119,843
Revolving Converted to Term Loans | 517 |  | 517 |  | 613
Total | 1,349,010 |  | 1,349,010 |  | 1,329,406
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | 0 |  | (1)
Gross charge-offs, Year One |  |  | 0 |  | 0
Gross charge-offs, Year Two |  |  | 0 |  | 0
Gross charge-offs, Year Three |  |  | 0 |  | 0
Gross charge-offs, Year Four |  |  | 0 |  | 0
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | 0 |  | 0
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | 0 | 0 | 0 | (1) | (1)
Residential real estate | Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 344,691 |  | 344,691 |  | 291,306
Year One | 205,315 |  | 205,315 |  | 78,568
Year Two | 284,972 |  | 284,972 |  | 211,938
Year Three | 220,729 |  | 220,729 |  | 295,402
Year Four | 107,203 |  | 107,203 |  | 220,753
Year Five | 51,744 |  | 51,744 |  | 101,005
Revolving Loans | 123,497 |  | 123,497 |  | 119,367
Revolving Converted to Term Loans | 517 |  | 517 |  | 613
Total | 1,338,668 |  | 1,338,668 |  | 1,318,952
Residential real estate | Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 1,992 |  | 1,992 |  | 1,529
Year One | 0 |  | 0 |  | 518
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 1,992 |  | 1,992 |  | 2,047
Residential real estate | Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 5,343 |  | 5,343 |  | 5,414
Year One | 1,557 |  | 1,557 |  | 0
Year Two | 278 |  | 278 |  | 1,342
Year Three | 401 |  | 401 |  | 290
Year Four | 0 |  | 0 |  | 885
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 771 |  | 771 |  | 476
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 8,350 |  | 8,350 |  | 8,407
Construction |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 35,561 |  | 35,561 |  | 32,244
Year One | 7,757 |  | 7,757 |  | 8,191
Year Two | 37,073 |  | 37,073 |  | 8,628
Year Three | 42,961 |  | 42,961 |  | 56,685
Year Four | 144,210 |  | 144,210 |  | 70,232
Year Five | 64,963 |  | 64,963 |  | 131,383
Revolving Loans | 16,364 |  | 16,364 |  | 26,785
Revolving Converted to Term Loans | 1,164 |  | 1,164 |  | 1,851
Total | 350,053 |  | 350,053 |  | 335,999
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | 0 |  | 0
Gross charge-offs, Year One |  |  | 0 |  | 0
Gross charge-offs, Year Two |  |  | 0 |  | (12)
Gross charge-offs, Year Three |  |  | 0 |  | 0
Gross charge-offs, Year Four |  |  | 0 |  | 0
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | 0 |  | 0
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | 0 | 0 | 0 | (12) | (12)
Construction | Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 35,231 |  | 35,231 |  | 31,884
Year One | 7,540 |  | 7,540 |  | 8,191
Year Two | 37,073 |  | 37,073 |  | 8,628
Year Three | 42,961 |  | 42,961 |  | 56,685
Year Four | 144,210 |  | 144,210 |  | 70,232
Year Five | 64,963 |  | 64,963 |  | 131,383
Revolving Loans | 16,364 |  | 16,364 |  | 26,785
Revolving Converted to Term Loans | 1,164 |  | 1,164 |  | 1,851
Total | 349,506 |  | 349,506 |  | 335,639
Construction | Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 217 |  | 217 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 217 |  | 217 |  | 0
Construction | Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 330 |  | 330 |  | 360
Year One | 0 |  | 0 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 330 |  | 330 |  | 360
Commercial |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 31,206 |  | 31,206 |  | 25,845
Year One | 33,006 |  | 33,006 |  | 11,088
Year Two | 25,242 |  | 25,242 |  | 40,825
Year Three | 28,579 |  | 28,579 |  | 30,399
Year Four | 34,852 |  | 34,852 |  | 29,958
Year Five | 14,117 |  | 14,117 |  | 39,489
Revolving Loans | 55,693 |  | 55,693 |  | 58,942
Revolving Converted to Term Loans | 1,397 |  | 1,397 |  | 1,386
Total | 224,092 |  | 224,092 |  | 237,932
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | (2) |  | (54)
Gross charge-offs, Year One |  |  | 0 |  | (11)
Gross charge-offs, Year Two |  |  | 0 |  | 0
Gross charge-offs, Year Three |  |  | 0 |  | (56)
Gross charge-offs, Year Four |  |  | 0 |  | (69)
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | 0 |  | 0
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | 0 | (23) | (2) | (23) | (190)
Commercial | Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 30,528 |  | 30,528 |  | 25,214
Year One | 33,001 |  | 33,001 |  | 11,088
Year Two | 23,894 |  | 23,894 |  | 40,817
Year Three | 27,660 |  | 27,660 |  | 29,142
Year Four | 34,852 |  | 34,852 |  | 29,458
Year Five | 14,117 |  | 14,117 |  | 39,489
Revolving Loans | 53,509 |  | 53,509 |  | 57,982
Revolving Converted to Term Loans | 1,363 |  | 1,363 |  | 874
Total | 218,924 |  | 218,924 |  | 234,064
Commercial | Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 155 |  | 155 |  | 116
Year One | 0 |  | 0 |  | 0
Year Two | 35 |  | 35 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 794 |  | 794 |  | 703
Revolving Converted to Term Loans | 34 |  | 34 |  | 11
Total | 1,018 |  | 1,018 |  | 830
Commercial | Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 523 |  | 523 |  | 515
Year One | 5 |  | 5 |  | 0
Year Two | 1,313 |  | 1,313 |  | 8
Year Three | 919 |  | 919 |  | 1,257
Year Four | 0 |  | 0 |  | 500
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 1,390 |  | 1,390 |  | 257
Revolving Converted to Term Loans | 0 |  | 0 |  | 501
Total | 4,150 |  | 4,150 |  | 3,038
Consumer |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 10,075 |  | 10,075 |  | 1,317
Year One | 53,710 |  | 53,710 |  | 10,469
Year Two | 104,876 |  | 104,876 |  | 60,766
Year Three | 51,054 |  | 51,054 |  | 115,499
Year Four | 40,781 |  | 40,781 |  | 62,215
Year Five | 33,076 |  | 33,076 |  | 52,798
Revolving Loans | 667 |  | 667 |  | 682
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 294,239 |  | 294,239 |  | 303,746
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | (235) |  | (1,287)
Gross charge-offs, Year One |  |  | (99) |  | (12)
Gross charge-offs, Year Two |  |  | (332) |  | (389)
Gross charge-offs, Year Three |  |  | (96) |  | (1,764)
Gross charge-offs, Year Four |  |  | (302) |  | (177)
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | (16) |  | (17)
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | (598) | (861) | (1,080) | (1,386) | (3,646)
Consumer | Pass |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 10,075 |  | 10,075 |  | 1,315
Year One | 53,680 |  | 53,680 |  | 10,469
Year Two | 103,852 |  | 103,852 |  | 60,718
Year Three | 50,606 |  | 50,606 |  | 114,639
Year Four | 40,749 |  | 40,749 |  | 61,652
Year Five | 33,076 |  | 33,076 |  | 52,798
Revolving Loans | 667 |  | 667 |  | 682
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 292,705 |  | 292,705 |  | 302,273
Consumer | Special mention |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 0 |  | 0 |  | 0
Year Two | 946 |  | 946 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 946 |  | 946 |  | 0
Consumer | Substandard |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 2
Year One | 30 |  | 30 |  | 0
Year Two | 78 |  | 78 |  | 48
Year Three | 448 |  | 448 |  | 860
Year Four | 32 |  | 32 |  | 563
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 0 |  | 0 |  | 0
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 588 |  | 588 |  | 1,473
Credit cards |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 0 |  | 0 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 6,260 |  | 6,260 |  | 7,099
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 6,260 |  | 6,260 |  | 7,099
Current period gross charge-offs |  |  |  |  |
Gross charge-offs, Prior |  |  | 0 |  | 0
Gross charge-offs, Year One |  |  | 0 |  | 0
Gross charge-offs, Year Two |  |  | 0 |  | 0
Gross charge-offs, Year Three |  |  | 0 |  | 0
Gross charge-offs, Year Four |  |  | 0 |  | 0
Gross charge-offs, Year Five |  |  | 0 |  | 0
Revolving Loans |  |  | (431) |  | (584)
Revolving Converted to Term Loans |  |  | 0 |  | 0
Total gross charge-offs | (189) | $ (78) | (431) | $ (194) | (584)
Credit cards | Performing |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 0 |  | 0 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 6,238 |  | 6,238 |  | 6,931
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | 6,238 |  | 6,238 |  | 6,931
Credit cards | Nonperforming |  |  |  |  |
Credit quality categories |  |  |  |  |
Prior | 0 |  | 0 |  | 0
Year One | 0 |  | 0 |  | 0
Year Two | 0 |  | 0 |  | 0
Year Three | 0 |  | 0 |  | 0
Year Four | 0 |  | 0 |  | 0
Year Five | 0 |  | 0 |  | 0
Revolving Loans | 22 |  | 22 |  | 168
Revolving Converted to Term Loans | 0 |  | 0 |  | 0
Total | $ 22 |  | $ 22 |  | $ 168

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
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