v3.26.1
Loans and Allowance for Credit Losses - Schedule of Amortized Cost Basis of Loans (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Total      
Year one $ 702   $ 17,519
Year two 15,089   44,608
Year three 40,170   129,863
Year four 117,326   1,100,602
Year five 1,076,706   184,892
Prior 316,027   139,547
Revolving Loans Amortized Cost Basis 4,671,325   4,225,918
Total 6,237,345   5,842,949
Gross charge-offs      
Year one 0   0
Year two 0   150
Year three 11   606
Year four 362   2,194
Year five 84   239
Prior 18   28
Revolving Loans Amortized Cost Basis 0   0
Total 475 $ 312 3,217
Loans converted to term loans 0   0
Residential      
Gross charge-offs      
Total 475 312  
Residential | Construction and land development      
Total      
Year one 366   3,640
Year two 3,640   6,249
Year three 4,514   37,121
Year four 30,009   49,098
Year five 46,651   34,096
Prior 46,890   17,344
Revolving Loans Amortized Cost Basis 0   0
Total 132,070   147,548
Gross charge-offs      
Year one 0   0
Year two 0   0
Year three 0   43
Year four 9   303
Year five 20   30
Prior 13   22
Revolving Loans Amortized Cost Basis 0   0
Total 42   398
Residential | Home equity lines of credit      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 810,662   785,983
Total 810,662   785,983
Gross charge-offs      
Year one 0   0
Year two 0   2
Year three 0   230
Year four 274   416
Year five 13   21
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 287   669
Residential | Closed end, first liens      
Total      
Year one 247   10,767
Year two 8,342   33,878
Year three 31,510   80,544
Year four 75,919   1,022,075
Year five 1,001,487   142,752
Prior 247,376   107,691
Revolving Loans Amortized Cost Basis 0   0
Total 1,364,881   1,397,707
Gross charge-offs      
Year one 0   0
Year two 0   148
Year three 11   220
Year four 70   1,471
Year five 51   74
Prior 5   6
Revolving Loans Amortized Cost Basis 0   0
Total 137   1,919
Residential | Closed end, second liens      
Total      
Year one 89   3,112
Year two 3,107   4,481
Year three 4,146   12,198
Year four 11,398   29,429
Year five 28,568   8,044
Prior 21,284   13,991
Revolving Loans Amortized Cost Basis 0   0
Total 68,592   71,255
Gross charge-offs      
Year one 0   0
Year two 0   0
Year three 0   113
Year four 9   4
Year five 0   114
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 9   231
Commercial      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 477   521
Revolving Loans Amortized Cost Basis 0   15,000
Total 477   15,521
Gross charge-offs      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0 0 0
Commercial | Pass      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 277   312
Revolving Loans Amortized Cost Basis 0   15,000
Total 277   15,312
Commercial | Special mention      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 51   55
Revolving Loans Amortized Cost Basis 0   0
Total 51   55
Commercial | Substandard      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 149   154
Revolving Loans Amortized Cost Basis 0   0
Total 149   154
MPP      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 3,860,663   3,424,935
Total 3,860,663   3,424,935
Gross charge-offs      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0 $ 0 0
MPP | Pass      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 3,860,663   3,424,935
Total 3,860,663   3,424,935
MPP | Special mention      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 0   0
Total 0   0
Performing | Residential | Construction and land development      
Total      
Year one 366   3,640
Year two 3,640   6,073
Year three 4,340   35,304
Year four 28,234   46,608
Year five 44,359   33,323
Prior 45,794   16,851
Revolving Loans Amortized Cost Basis 0   0
Total 126,733   141,799
Performing | Residential | Home equity lines of credit      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 797,494   772,315
Total 797,494   772,315
Performing | Residential | Closed end, first liens      
Total      
Year one 247   10,612
Year two 7,171   31,083
Year three 29,282   73,710
Year four 67,863   990,798
Year five 975,018   139,513
Prior 237,460   102,187
Revolving Loans Amortized Cost Basis 0   0
Total 1,317,041   1,347,903
Performing | Residential | Closed end, second liens      
Total      
Year one 89   3,112
Year two 3,107   4,229
Year three 3,894   11,767
Year four 10,978   29,114
Year five 28,253   7,812
Prior 20,416   13,665
Revolving Loans Amortized Cost Basis 0   0
Total 66,737   69,699
Nonperforming | Residential | Construction and land development      
Total      
Year one 0   0
Year two 0   176
Year three 174   1,817
Year four 1,775   2,490
Year five 2,292   773
Prior 1,096   493
Revolving Loans Amortized Cost Basis 0   0
Total 5,337   5,749
Nonperforming | Residential | Home equity lines of credit      
Total      
Year one 0   0
Year two 0   0
Year three 0   0
Year four 0   0
Year five 0   0
Prior 0   0
Revolving Loans Amortized Cost Basis 13,168   13,668
Total 13,168   13,668
Nonperforming | Residential | Closed end, first liens      
Total      
Year one 0   155
Year two 1,171   2,795
Year three 2,228   6,834
Year four 8,056   31,277
Year five 26,469   3,239
Prior 9,916   5,504
Revolving Loans Amortized Cost Basis 0   0
Total 47,840   49,804
Nonperforming | Residential | Closed end, second liens      
Total      
Year one 0   0
Year two 0   252
Year three 252   431
Year four 420   315
Year five 315   232
Prior 868   326
Revolving Loans Amortized Cost Basis 0   0
Total $ 1,855   $ 1,556