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Loans - Past Due Financing Receivables (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Financing Receivable, Past Due [Line Items]    
Current $ 5,725,805 $ 5,163,098
Nonaccrual 30,051 26,955
Loans 5,772,052 5,198,404
Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 9,556 7,259
Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 5,541 984
Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 1,099 108
Construction and land development    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 606 4,936
Loans 298,835 325,113
Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Nonaccrual   6,520
Loans   2,378,971
Commercial real estate - owner-occupied    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 3,766  
Loans 1,076,650 1,000,000
Commercial real estate - non owner-occupied    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 3,132  
Loans 1,392,787  
Residential real estate    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 12,787 9,480
Loans 1,468,171 1,507,863
Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 9,358 5,909
Loans 757,232 778,252
Consumer    
Financing Receivable, Past Due [Line Items]    
Nonaccrual 402 110
Loans 201,927 208,205
Paycheck Protection Program    
Financing Receivable, Past Due [Line Items]    
Loans 576,450  
Portfolio Loans    
Financing Receivable, Past Due [Line Items]    
Current 4,855,795 4,290,227
Nonaccrual 22,248 20,990
Loans 4,892,335 4,317,918
Portfolio Loans | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 7,920 6,040
Portfolio Loans | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 5,541 553
Portfolio Loans | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 831 108
Portfolio Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Current 270,070 276,984
Nonaccrual 22 4,351
Loans 270,715 281,335
Portfolio Loans | Construction and land development | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0 0
Portfolio Loans | Construction and land development | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 623 0
Portfolio Loans | Construction and land development | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0 0
Portfolio Loans | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Current   1,828,629
Nonaccrual   4,356
Loans   1,834,811
Portfolio Loans | Commercial real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   1,606
Portfolio Loans | Commercial real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   220
Portfolio Loans | Commercial real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Portfolio Loans | Commercial real estate - owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 829,903  
Nonaccrual 2,425  
Loans 832,943  
Portfolio Loans | Commercial real estate - owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Commercial real estate - owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Commercial real estate - owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 615  
Portfolio Loans | Commercial real estate - non owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 1,069,979  
Nonaccrual 2,096  
Loans 1,074,063  
Portfolio Loans | Commercial real estate - non owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 1,988  
Portfolio Loans | Commercial real estate - non owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Commercial real estate - non owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Residential real estate    
Financing Receivable, Past Due [Line Items]    
Current 1,230,480 1,294,778
Nonaccrual 10,326 7,945
Loans 1,249,368 1,304,305
Portfolio Loans | Residential real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 3,729 1,564
Portfolio Loans | Residential real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 4,833 18
Portfolio Loans | Residential real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0 0
Portfolio Loans | Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Current 683,667 690,412
Nonaccrual 6,977 4,228
Loans 692,933 697,301
Portfolio Loans | Commercial and financial | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 2,034 2,553
Portfolio Loans | Commercial and financial | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 39 0
Portfolio Loans | Commercial and financial | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 216 108
Portfolio Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Current 195,246 199,424
Nonaccrual 402 110
Loans 195,863 200,166
Portfolio Loans | Consumer | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 169 317
Portfolio Loans | Consumer | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 46 315
Portfolio Loans | Consumer | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0 0
Portfolio Loans | Paycheck Protection Program    
Financing Receivable, Past Due [Line Items]    
Current 576,450  
Nonaccrual 0  
Loans 576,450  
Portfolio Loans | Paycheck Protection Program | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Paycheck Protection Program | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Portfolio Loans | Paycheck Protection Program | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans    
Financing Receivable, Past Due [Line Items]    
Current   862,272
Nonaccrual   3,898
Loans   867,820
Acquired Non-PCD Loans | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   1,219
Acquired Non-PCD Loans | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   431
Acquired Non-PCD Loans | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Current   43,044
Nonaccrual   574
Loans   43,618
Acquired Non-PCD Loans | Construction and land development | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Construction and land development | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Construction and land development | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Current   531,325
Nonaccrual   1,245
Loans   533,943
Acquired Non-PCD Loans | Commercial real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   942
Acquired Non-PCD Loans | Commercial real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   431
Acquired Non-PCD Loans | Commercial real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Residential real estate    
Financing Receivable, Past Due [Line Items]    
Current   201,159
Nonaccrual   412
Loans   201,848
Acquired Non-PCD Loans | Residential real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   277
Acquired Non-PCD Loans | Residential real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Residential real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Current   78,705
Nonaccrual   1,667
Loans   80,372
Acquired Non-PCD Loans | Commercial and financial | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Commercial and financial | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Commercial and financial | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Current   8,039
Nonaccrual   0
Loans   8,039
Acquired Non-PCD Loans | Consumer | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Consumer | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
Acquired Non-PCD Loans | Consumer | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans    
Financing Receivable, Past Due [Line Items]    
Current   10,599
Nonaccrual   2,067
Loans   12,666
PCD Loans | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Current   148
Nonaccrual   12
Loans   160
PCD Loans | Construction and land development | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Construction and land development | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Construction and land development | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial real estate    
Financing Receivable, Past Due [Line Items]    
Current   9,298
Nonaccrual   919
Loans   10,217
PCD Loans | Commercial real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Residential real estate    
Financing Receivable, Past Due [Line Items]    
Current   587
Nonaccrual   1,123
Loans   1,710
PCD Loans | Residential real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Residential real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Residential real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Current   566
Nonaccrual   13
Loans   579
PCD Loans | Commercial and financial | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial and financial | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Commercial and financial | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Current   0
Nonaccrual   0
Loans   0
PCD Loans | Consumer | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Consumer | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   0
PCD Loans | Consumer | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due   $ 0
Acquired Non-PCD Loans    
Financing Receivable, Past Due [Line Items]    
Current 821,041  
Nonaccrual 5,530  
Loans 828,388  
Acquired Non-PCD Loans | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 1,549  
Acquired Non-PCD Loans | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 268  
Acquired Non-PCD Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Current 25,117  
Nonaccrual 574  
Loans 25,691  
Acquired Non-PCD Loans | Construction and land development | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Construction and land development | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Construction and land development | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial real estate - owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 213,731  
Nonaccrual 1,341  
Loans 216,598  
Acquired Non-PCD Loans | Commercial real estate - owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 1,526  
Acquired Non-PCD Loans | Commercial real estate - owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial real estate - owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial real estate - non owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 306,612  
Nonaccrual 0  
Loans 306,880  
Acquired Non-PCD Loans | Commercial real estate - non owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial real estate - non owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial real estate - non owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 268  
Acquired Non-PCD Loans | Residential real estate    
Financing Receivable, Past Due [Line Items]    
Current 208,963  
Nonaccrual 1,284  
Loans 210,247  
Acquired Non-PCD Loans | Residential real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Residential real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Residential real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Current 60,941  
Nonaccrual 2,331  
Loans 63,272  
Acquired Non-PCD Loans | Commercial and financial | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial and financial | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Commercial and financial | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Current 5,677  
Nonaccrual 0  
Loans 5,700  
Acquired Non-PCD Loans | Consumer | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 23  
Acquired Non-PCD Loans | Consumer | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Consumer | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
Acquired Non-PCD Loans | Paycheck Protection Program    
Financing Receivable, Past Due [Line Items]    
Loans 0  
PCD Loans    
Financing Receivable, Past Due [Line Items]    
Current 48,969  
Nonaccrual 2,273  
Loans 51,329  
PCD Loans | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 87  
PCD Loans | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Construction and land development    
Financing Receivable, Past Due [Line Items]    
Current 2,419  
Nonaccrual 10  
Loans 2,429  
PCD Loans | Construction and land development | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Construction and land development | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Construction and land development | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 27,109  
Nonaccrual 0  
Loans 27,109  
PCD Loans | Commercial real estate - owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - non owner-occupied    
Financing Receivable, Past Due [Line Items]    
Current 10,808  
Nonaccrual 1,036  
Loans 11,844  
PCD Loans | Commercial real estate - non owner-occupied | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - non owner-occupied | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial real estate - non owner-occupied | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Residential real estate    
Financing Receivable, Past Due [Line Items]    
Current 7,379  
Nonaccrual 1,177  
Loans 8,556  
PCD Loans | Residential real estate | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Residential real estate | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Residential real estate | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial and financial    
Financing Receivable, Past Due [Line Items]    
Current 977  
Nonaccrual 50  
Loans 1,027  
PCD Loans | Commercial and financial | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial and financial | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Commercial and financial | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Consumer    
Financing Receivable, Past Due [Line Items]    
Current 277  
Nonaccrual 0  
Loans 364  
PCD Loans | Consumer | Accruing 30-59 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 87  
PCD Loans | Consumer | Accruing 60-89 Days Past Due    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Consumer | Accruing Greater Than 90 Days    
Financing Receivable, Past Due [Line Items]    
Financing receivable, recorded investment, past due 0  
PCD Loans | Paycheck Protection Program    
Financing Receivable, Past Due [Line Items]    
Loans $ 0