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Loans and Asset Quality Information - Schedule of Analysis of Payment Status of Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Financing Receivable, Past Due [Line Items] |  |  |
Loans | $ 6,081,715 | $ 4,731,315 | $ 4,453,466
Nonaccrual loans | 34,696 | 35,076 |
Unamortized net deferred loan (fees) costs | (1,704) | (3,698) | (1,941)
Total loans | 6,083,419 | 4,735,013 | 4,451,525
Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 11,763 | 16,318 |
Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 3,263 | 5,271 |
Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 1,004 | 719 |
Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 6,032,693 | 4,677,629 |
PCI Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans |  | 0 |
Total loans |  | 8,591 |
PCI Loans | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 328 |
PCI Loans | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 112 |
PCI Loans | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 719 |
PCI Loans | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans |  | 7,432 |
Commercial, financial, and agricultural |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 12,152 | 9,681 |
Total loans | 648,997 | 782,549 | 504,271
Commercial, financial, and agricultural | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 377 | 1,464 |
Commercial, financial, and agricultural | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 93 | 1,101 |
Commercial, financial, and agricultural | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 0 | 0 |
Commercial, financial, and agricultural | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 636,375 | 770,166 |
Commercial, financial, and agricultural | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | 648,997 | 782,412 |
Real estate, commercial | Real estate – construction, land development & other land loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 632 | 643 |
Total loans | 828,549 | 570,672 | 530,866
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 4,046 | 572 |
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 0 | 0 |
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 286 | 0 |
Real estate, commercial | Real estate – construction, land development & other land loans | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 823,585 | 569,307 |
Real estate, commercial | Real estate – construction, land development & other land loans | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | 828,549 | 570,522 |
Real estate, commercial | Real estate – mortgage – commercial and other |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 16,231 | 17,191 |
Total loans | 3,194,737 | 2,049,203 | 1,917,280
Real estate, commercial | Real estate – mortgage – commercial and other | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 164 | 2,540 |
Real estate, commercial | Real estate – mortgage – commercial and other | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 1,496 | 3,111 |
Real estate, commercial | Real estate – mortgage – commercial and other | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 0 | 0 |
Real estate, commercial | Real estate – mortgage – commercial and other | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 3,176,846 | 2,022,422 |
Real estate, commercial | Real estate – mortgage – commercial and other | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | 3,194,737 | 2,045,264 |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 4,898 | 6,048 |
Total loans | 1,021,966 | 972,378 | 1,105,014
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 6,571 | 10,146 |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 1,488 | 869 |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 0 | 0 |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 1,009,009 | 951,088 |
Real estate, mortgage | Real estate – mortgage – residential (1-4 family) first mortgages | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | 1,021,966 | 968,151 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 694 | 1,333 |
Total loans | 331,932 | 306,256 | 337,922
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 489 | 1,088 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 124 | 42 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 718 | 0 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 329,907 | 303,693 |
Real estate, mortgage | Real estate – mortgage – home equity loans / lines of credit | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | 331,932 | 306,156 |
Consumer loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Nonaccrual loans | 89 | 180 |
Total loans | 57,238 | 53,955 | $ 56,172
Consumer loans | Accruing 30-59 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 116 | 180 |
Consumer loans | Accruing 60- 89 Days Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 62 | 36 |
Consumer loans | Accruing 90 Days or More Past Due |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 0 | 0 |
Consumer loans | Accruing Current |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Loans | 56,971 | 53,521 |
Consumer loans | Loans, Excluding Purchased Credit Impaired Loans |  |  |
Financing Receivable, Past Due [Line Items] |  |  |
Total loans | $ 57,238 | $ 53,917 |

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