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Loans and Asset Quality Information - Schedule of Activity in Allowance for Loan Losses for Loans (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | $ 52,388 | $ 21,398 | $ 21,039
Allowance for Select PCD loans | 4,895 |  |
Charge-offs | (7,602) | (8,502) | (6,303)
Recoveries | 4,922 | 4,453 | 4,399
Provisions/(Reversals) | 9,611 | 35,039 | 2,263
Ending balance | 78,789 | 52,388 | 21,398
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 6,551 | 3,574
Collectively evaluated for impairment |  | 45,699 | 17,641
Purchased credit impaired |  | 138 | 183
Loans receivable: |  |  |
Loans | 6,083,419 | 4,735,013 | 4,451,525
Unamortized net deferred loan (fees) costs | (1,704) | (3,698) | (1,941)
Total loans | 6,081,715 | 4,731,315 | 4,453,466
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 36,281 | 25,202
Collectively evaluated for impairment |  | 4,690,141 | 4,413,659
Purchased credit impaired |  | 8,591 | 12,664
Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 14,575 |  |
Ending balance |  | 14,575 |
Commercial, financial, and agricultural |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 11,316 | 4,553 | 2,889
Allowance for Select PCD loans | 2,917 |  |
Charge-offs | (3,722) | (5,608) | (2,473)
Recoveries | 1,744 | 745 | 980
Provisions/(Reversals) | 927 | 11,626 | 3,157
Ending balance | 16,249 | 11,316 | 4,553
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 3,546 | 1,791
Collectively evaluated for impairment |  | 7,742 | 2,720
Purchased credit impaired |  | 28 | 42
Loans receivable: |  |  |
Loans | 648,997 | 782,549 | 504,271
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 7,700 | 4,957
Collectively evaluated for impairment |  | 774,712 | 499,101
Purchased credit impaired |  | 137 | 213
Commercial, financial, and agricultural | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 3,067 |  |
Ending balance |  | 3,067 |
Real estate, commercial | Real estate – construction, land development & other land loans |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 5,355 | 1,976 | 2,243
Allowance for Select PCD loans | 165 |  |
Charge-offs | (245) | (51) | (553)
Recoveries | 948 | 1,552 | 1,275
Provisions/(Reversals) | 4,156 | 1,878 | (989)
Ending balance | 16,519 | 5,355 | 1,976
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 30 | 50
Collectively evaluated for impairment |  | 5,325 | 1,926
Purchased credit impaired |  | 0 | 0
Loans receivable: |  |  |
Loans | 828,549 | 570,672 | 530,866
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 677 | 796
Collectively evaluated for impairment |  | 569,845 | 529,904
Purchased credit impaired |  | 150 | 166
Real estate, commercial | Real estate – construction, land development & other land loans | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 6,140 |  |
Ending balance |  | 6,140 |
Real estate, commercial | Real estate – mortgage – commercial and other |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 23,603 | 8,938 | 7,983
Allowance for Select PCD loans | 1,489 |  |
Charge-offs | (2,295) | (968) | (1,556)
Recoveries | 533 | 621 | 575
Provisions/(Reversals) | 7,269 | 15,012 | 1,936
Ending balance | 30,342 | 23,603 | 8,938
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 2,175 | 983
Collectively evaluated for impairment |  | 21,428 | 7,931
Purchased credit impaired |  | 0 | 24
Loans receivable: |  |  |
Loans | 3,194,737 | 2,049,203 | 1,917,280
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 18,582 | 9,570
Collectively evaluated for impairment |  | 2,026,682 | 1,901,080
Purchased credit impaired |  | 3,939 | 6,630
Real estate, commercial | Real estate – mortgage – commercial and other | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | (257) |  |
Ending balance |  | (257) |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 8,048 | 3,832 | 5,197
Allowance for Select PCD loans | 222 |  |
Charge-offs | (273) | (478) | (657)
Recoveries | 761 | 754 | 705
Provisions/(Reversals) | (2,656) | 3,940 | (1,413)
Ending balance | 8,686 | 8,048 | 3,832
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 800 | 750
Collectively evaluated for impairment |  | 7,141 | 2,976
Purchased credit impaired |  | 107 | 106
Loans receivable: |  |  |
Loans | 1,021,966 | 972,378 | 1,105,014
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 9,303 | 9,546
Collectively evaluated for impairment |  | 958,848 | 1,090,125
Purchased credit impaired |  | 4,227 | 5,343
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 2,584 |  |
Ending balance |  | 2,584 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 2,375 | 1,127 | 1,665
Allowance for Select PCD loans | 92 |  |
Charge-offs | (400) | (524) | (307)
Recoveries | 578 | 487 | 629
Provisions/(Reversals) | (888) | 1,285 | (860)
Ending balance | 4,337 | 2,375 | 1,127
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 0 | 0
Collectively evaluated for impairment |  | 2,375 | 1,127
Purchased credit impaired |  | 0 | 0
Loans receivable: |  |  |
Loans | 331,932 | 306,256 | 337,922
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 15 | 333
Collectively evaluated for impairment |  | 306,141 | 337,366
Purchased credit impaired |  | 100 | 223
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 2,580 |  |
Ending balance |  | 2,580 |
Consumer loans |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 1,478 | 972 | 952
Allowance for Select PCD loans | 10 |  |
Charge-offs | (667) | (873) | (757)
Recoveries | 358 | 294 | 235
Provisions/(Reversals) | 803 | 1,085 | 542
Ending balance | 2,656 | 1,478 | 972
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 0 | 0
Collectively evaluated for impairment |  | 1,475 | 961
Purchased credit impaired |  | 3 | 11
Loans receivable: |  |  |
Loans | 57,238 | 53,955 | 56,172
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 4 | 0
Collectively evaluated for impairment |  | 53,913 | 56,083
Purchased credit impaired |  | 38 | 89
Consumer loans | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 674 |  |
Ending balance |  | 674 |
Unallocated |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 213 | 0 | 110
Allowance for Select PCD loans | 0 |  |
Charge-offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Provisions/(Reversals) | 0 | 213 | (110)
Ending balance | 0 | 213 | 0
Ending balances: Allowance for loan losses |  |  |
Individually evaluated for impairment |  | 0 | 0
Collectively evaluated for impairment |  | 213 | 0
Purchased credit impaired |  | 0 | 0
Loans receivable: |  |  |
Loans |  | 0 | 0
Ending balances: Loans |  |  |
Individually evaluated for impairment |  | 0 | 0
Collectively evaluated for impairment |  | 0 | 0
Purchased credit impaired |  | 0 | $ 0
Unallocated | Cumulative Effect, Period of Adoption, Adjustment |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | $ (213) |  |
Ending balance |  | $ (213) |

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