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Acquisitions - Schedule of Assets and Liabilities (Details) - USD ($) $ in Thousands | Jan. 01, 2023 | Sep. 30, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Liabilities assumed: |  |  |  |
Goodwill |  | $ 478,750 | $ 364,263 | $ 364,263
GrandSouth |  |  |  |
Assets acquired: |  |  |  |
Cash and cash equivalents | $ 22,610 |  |  |
Securities available for sale | 112,363 |  |  |
Loans, gross | 996,833 |  |  |
Allowance for loan losses | 5,610 |  |  |
Premises and equipment | 20,268 |  |  |
Core deposit intangible | 28,840 |  |  |
Operating right-of-use lease assets | 732 |  |  |
Other assets | 27,163 |  |  |
Total | 1,203,199 |  |  |
Liabilities assumed: |  |  |  |
Deposits | 1,045,308 |  |  |
Borrowings | 38,800 |  |  |
Other liabilities | 4,089 |  |  |
Total | 1,088,197 |  |  |
Net identifiable assets acquired | 115,002 |  |  |
Total consideration | 229,489 |  |  |
Goodwill | $ 114,487 |  |  |

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