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Goodwill and Intangible Assets - Analysis of the Core Deposit Intangible Activity (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Aug. 01, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | $ 9,935 |  | $ 3,660
Accumulated Amortization | 2,546 |  | 1,389
Goodwill | 52,906 |  | 15,992
SouthCrest Financial Group, Inc. |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill |  | $ 35,037 |
Core deposit intangible |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 7,685 |  | 3,660
Accumulated Amortization | 2,464 |  | 1,389
Customer relationship intangible |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross Carrying Amount | 2,250 |  | 0
Accumulated Amortization | $ 82 |  | $ 0

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