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Loans - Risk Categories of Loans by Class of Loans (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year $ 266,598   $ 1,771,386
One year prior to current fiscal year 2,611,150   1,972,420
Two years prior to current fiscal year 2,565,152   750,817
Three years prior to current fiscal year 1,040,116   749,534
Four years prior to current fiscal year 981,331   545,447
Prior 2,612,433   1,469,313
Revolving 57,615   883,925
Total 10,134,395   8,144,724
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 39    
Two years prior to current fiscal year, Charge Offs 451    
Three years prior to current fiscal year, Charge Offs 1,656    
Four years prior to current fiscal year, Charge Offs 222    
Prior, Charge Offs 1,007    
Revolving, Charge Offs 230    
Total, Charge Offs 3,605 $ 665  
Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 266,598   1,754,920
One year prior to current fiscal year 2,601,520   1,945,692
Two years prior to current fiscal year 2,517,079   720,324
Three years prior to current fiscal year 987,873   724,493
Four years prior to current fiscal year 942,465   529,942
Prior 2,517,641   1,430,636
Revolving 57,547   864,846
Total 9,890,723   7,972,735
Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   16,461
One year prior to current fiscal year 7,283   17,132
Two years prior to current fiscal year 20,010   3,254
Three years prior to current fiscal year 14,827   13,718
Four years prior to current fiscal year 20,680   2,770
Prior 32,183   8,506
Revolving 0   3,927
Total 94,900   65,768
Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 2,178   9,486
Two years prior to current fiscal year 27,438   20,935
Three years prior to current fiscal year 17,684   8,929
Four years prior to current fiscal year 14,325   8,650
Prior 39,652   14,073
Revolving 0   13,199
Total 101,360   75,272
Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   5
One year prior to current fiscal year 169   110
Two years prior to current fiscal year 625   6,304
Three years prior to current fiscal year 19,667   2,394
Four years prior to current fiscal year 3,861   4,085
Prior 21,583   16,098
Revolving 68   1,953
Total 45,973   30,949
Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 65   0
Four years prior to current fiscal year 0   0
Prior 1,374   0
Revolving 0   0
Total 1,439   0
Construction and land development      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 20,907   237,727
One year prior to current fiscal year 324,422   219,469
Two years prior to current fiscal year 250,918   18,239
Three years prior to current fiscal year 45,943   27,753
Four years prior to current fiscal year 37,444   13,742
Prior 72,766   19,427
Revolving 5,435   50,975
Total 757,835   587,332
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 0    
Three years prior to current fiscal year, Charge Offs 0    
Four years prior to current fiscal year, Charge Offs 0    
Prior, Charge Offs 0    
Revolving, Charge Offs 0    
Total, Charge Offs 0 0  
Construction and land development | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 20,907   223,204
One year prior to current fiscal year 322,371   209,738
Two years prior to current fiscal year 241,044   18,239
Three years prior to current fiscal year 45,943   24,600
Four years prior to current fiscal year 33,641   12,783
Prior 61,203   19,022
Revolving 5,435   50,960
Total 730,544   558,546
Construction and land development | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   14,523
One year prior to current fiscal year 2,051   452
Two years prior to current fiscal year 467   0
Three years prior to current fiscal year 0   3,153
Four years prior to current fiscal year 3,803   0
Prior 2   0
Revolving 0   15
Total 6,323   18,143
Construction and land development | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   9,227
Two years prior to current fiscal year 9,407   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   959
Prior 11,555   0
Revolving 0   0
Total 20,962   10,186
Construction and land development | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   52
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 6   405
Revolving 0   0
Total 6   457
Construction and land development | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial real estate - owner occupied      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 24,300   216,147
One year prior to current fiscal year 272,862   251,638
Two years prior to current fiscal year 316,822   183,111
Three years prior to current fiscal year 184,524   192,625
Four years prior to current fiscal year 203,713   124,983
Prior 650,200   477,545
Revolving 70   32,253
Total 1,652,491   1,478,302
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 0    
Three years prior to current fiscal year, Charge Offs 0    
Four years prior to current fiscal year, Charge Offs 0    
Prior, Charge Offs 0    
Revolving, Charge Offs 0    
Total, Charge Offs 0 0  
Commercial real estate - owner occupied | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 24,300   215,453
One year prior to current fiscal year 272,169   251,638
Two years prior to current fiscal year 312,366   180,081
Three years prior to current fiscal year 177,419   185,286
Four years prior to current fiscal year 195,904   121,568
Prior 626,242   467,963
Revolving 70   32,253
Total 1,608,470   1,454,242
Commercial real estate - owner occupied | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   694
One year prior to current fiscal year 2   0
Two years prior to current fiscal year 2,120   2,363
Three years prior to current fiscal year 0   4,403
Four years prior to current fiscal year 4,882   2,548
Prior 11,868   2,869
Revolving 0   0
Total 18,872   12,877
Commercial real estate - owner occupied | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 691   0
Two years prior to current fiscal year 2,336   667
Three years prior to current fiscal year 7,105   2,625
Four years prior to current fiscal year 2,604   573
Prior 9,552   4,444
Revolving 0   0
Total 22,288   8,309
Commercial real estate - owner occupied | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   311
Four years prior to current fiscal year 323   294
Prior 2,538   2,269
Revolving 0   0
Total 2,861   2,874
Commercial real estate - owner occupied | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial real estate - non-owner occupied      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 86,801   593,364
One year prior to current fiscal year 861,624   546,911
Two years prior to current fiscal year 675,212   252,787
Three years prior to current fiscal year 363,128   338,460
Four years prior to current fiscal year 436,881   233,622
Prior 988,260   589,304
Revolving 145   35,326
Total 3,412,051   2,589,774
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 0    
Three years prior to current fiscal year, Charge Offs 109    
Four years prior to current fiscal year, Charge Offs 0    
Prior, Charge Offs 0    
Revolving, Charge Offs 0    
Total, Charge Offs 109 0  
Commercial real estate - non-owner occupied | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 86,801   593,364
One year prior to current fiscal year 861,624   530,462
Two years prior to current fiscal year 673,294   231,693
Three years prior to current fiscal year 331,702   331,173
Four years prior to current fiscal year 421,185   228,077
Prior 952,125   575,656
Revolving 145   35,326
Total 3,326,876   2,525,751
Commercial real estate - non-owner occupied | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   16,257
Two years prior to current fiscal year 1,727   735
Three years prior to current fiscal year 11,228   5,438
Four years prior to current fiscal year 7,839   0
Prior 16,534   4,975
Revolving 0   0
Total 37,328   27,405
Commercial real estate - non-owner occupied | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   192
Two years prior to current fiscal year 191   19,315
Three years prior to current fiscal year 4,672   0
Four years prior to current fiscal year 6,008   5,515
Prior 13,937   7,412
Revolving 0   0
Total 24,808   32,434
Commercial real estate - non-owner occupied | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   1,044
Three years prior to current fiscal year 15,526   1,849
Four years prior to current fiscal year 1,849   30
Prior 5,664   1,261
Revolving 0   0
Total 23,039   4,184
Commercial real estate - non-owner occupied | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Residential real estate      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 66,554   270,054
One year prior to current fiscal year 561,449   552,950
Two years prior to current fiscal year 734,453   122,062
Three years prior to current fiscal year 231,255   77,132
Four years prior to current fiscal year 152,989   98,008
Prior 572,968   302,994
Revolving 34,726   426,303
Total 2,354,394   1,849,503
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 0    
Three years prior to current fiscal year, Charge Offs 0    
Four years prior to current fiscal year, Charge Offs 0    
Prior, Charge Offs 159    
Revolving, Charge Offs 0    
Total, Charge Offs 159 1  
Residential real estate | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 66,554   270,054
One year prior to current fiscal year 561,374   552,950
Two years prior to current fiscal year 733,887   121,879
Three years prior to current fiscal year 231,100   77,100
Four years prior to current fiscal year 152,377   97,900
Prior 564,550   292,867
Revolving 34,658   423,764
Total 2,344,500   1,836,514
Residential real estate | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   50
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   25
Prior 0   269
Revolving 0   884
Total 0   1,228
Residential real estate | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   343
Revolving 0   85
Total 0   428
Residential real estate | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 75   0
Two years prior to current fiscal year 566   133
Three years prior to current fiscal year 155   32
Four years prior to current fiscal year 612   83
Prior 8,418   9,515
Revolving 68   1,570
Total 9,894   11,333
Residential real estate | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 0   0
Commercial and financial      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 58,767   361,082
One year prior to current fiscal year 489,767   320,855
Two years prior to current fiscal year 493,258   146,607
Three years prior to current fiscal year 183,686   84,487
Four years prior to current fiscal year 115,348   63,364
Prior 295,862   63,135
Revolving 13,797   309,106
Total 1,650,485   1,348,636
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 56    
Three years prior to current fiscal year, Charge Offs 1,334    
Four years prior to current fiscal year, Charge Offs 204    
Prior, Charge Offs 848    
Revolving, Charge Offs 200    
Total, Charge Offs 2,642 569  
Commercial and financial | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 58,767   359,833
One year prior to current fiscal year 482,995   320,307
Two years prior to current fiscal year 462,755   140,450
Three years prior to current fiscal year 170,255   77,562
Four years prior to current fiscal year 104,402   57,924
Prior 281,433   58,648
Revolving 13,797   292,818
Total 1,574,404   1,307,542
Commercial and financial | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   1,244
One year prior to current fiscal year 5,230   423
Two years prior to current fiscal year 15,682   106
Three years prior to current fiscal year 3,530   474
Four years prior to current fiscal year 4,156   195
Prior 3,779   259
Revolving 0   2,998
Total 32,377   5,699
Commercial and financial | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 1,487   67
Two years prior to current fiscal year 14,762   942
Three years prior to current fiscal year 5,863   6,304
Four years prior to current fiscal year 5,713   1,603
Prior 4,594   1,683
Revolving 0   13,114
Total 32,419   23,713
Commercial and financial | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   5
One year prior to current fiscal year 55   58
Two years prior to current fiscal year 59   5,109
Three years prior to current fiscal year 3,973   147
Four years prior to current fiscal year 1,077   3,642
Prior 4,682   2,545
Revolving 0   176
Total 9,846   11,682
Commercial and financial | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 65   0
Four years prior to current fiscal year 0   0
Prior 1,374   0
Revolving 0   0
Total 1,439   0
Consumer      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 9,269   93,012
One year prior to current fiscal year 101,026   77,889
Two years prior to current fiscal year 91,814   28,011
Three years prior to current fiscal year 28,856   29,077
Four years prior to current fiscal year 34,956   11,728
Prior 32,377   16,908
Revolving 3,442   29,962
Total 301,740   286,587
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 39    
Two years prior to current fiscal year, Charge Offs 395    
Three years prior to current fiscal year, Charge Offs 213    
Four years prior to current fiscal year, Charge Offs 18    
Prior, Charge Offs 0    
Revolving, Charge Offs 30    
Total, Charge Offs 695 $ 95  
Consumer | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 9,269   93,012
One year prior to current fiscal year 100,987   77,889
Two years prior to current fiscal year 91,072   27,982
Three years prior to current fiscal year 28,799   28,772
Four years prior to current fiscal year 34,956   11,690
Prior 32,088   16,480
Revolving 3,442   29,725
Total 300,613   285,550
Consumer | Special Mention      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   250
Four years prior to current fiscal year 0   2
Prior 0   134
Revolving 0   30
Total 0   416
Consumer | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 742   11
Three years prior to current fiscal year 44   0
Four years prior to current fiscal year 0   0
Prior 14   191
Revolving 0   0
Total 800   202
Consumer | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 39   0
Two years prior to current fiscal year 0   18
Three years prior to current fiscal year 13   55
Four years prior to current fiscal year 0   36
Prior 275   103
Revolving 0   207
Total 327   419
Consumer | Doubtful      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 0   0
PPP Loans      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   2,708
Two years prior to current fiscal year 2,675   1,882
Three years prior to current fiscal year 2,724   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 5,399   4,590
Current fiscal year, Charge Offs 0    
One year prior to current fiscal year, Charge Offs 0    
Two years prior to current fiscal year, Charge Offs 0    
Three years prior to current fiscal year, Charge Offs 0    
Four years prior to current fiscal year, Charge Offs 0    
Prior, Charge Offs 0    
Revolving, Charge Offs 0    
Total, Charge Offs 0    
PPP Loans | Pass      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   2,708
Two years prior to current fiscal year 2,661   1,882
Three years prior to current fiscal year 2,655   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 5,316   4,590
PPP Loans | Substandard      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 14   0
Three years prior to current fiscal year 69   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total 83   0
PPP Loans | Substandard Impaired      
Financing Receivable, Credit Quality Indicator [Line Items]      
Current fiscal year 0   0
One year prior to current fiscal year 0   0
Two years prior to current fiscal year 0   0
Three years prior to current fiscal year 0   0
Four years prior to current fiscal year 0   0
Prior 0   0
Revolving 0   0
Total $ 0   $ 0