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Goodwill, Other Intangible Assets and Servicing Assets (Tables) | 12 Months Ended
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Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Goodwill | The following is a summary of the gross carrying amount and accumulated amortization of amortizable intangible assets and the carrying amount of unamortized intangible assets as of the periods presented.
|  | December 31, 2024 |  | December 31, 2023
($ in thousands) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount
Amortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Customer lists |  | $ | 1,600 |  |  | $ | 1,387 |  |  | $ | 213 |  |  | $ | 2,700 |  |  | $ | 2,167 |  |  | $ | 533 |
Core deposit intangibles |  | 57,890 |  |  | 35,199 |  |  | 22,691 |  |  | 57,890 |  |  | 28,933 |  |  | 28,957 |
Other |  | 100 |  |  | 100 |  |  | — |  |  | 100 |  |  | 83 |  |  | 17 |
Total amortizable intangible assets |  | $ | 59,590 |  |  | $ | 36,686 |  |  | $ | 22,904 |  |  | $ | 60,690 |  |  | $ | 31,183 |  |  | $ | 29,507 |
Unamortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  | $ | 478,750 |  |  |  |  |  |  | $ | 478,750 |  |  |  |  |
Schedule of Changes in Carrying Amount of Goodwill | The following table presents the changes in carrying amounts of goodwill:
($ in thousands) |  | Total Goodwill
Balance at December 31, 2022 |  | $ | 364,263 |
Additions from acquisition of GrandSouth |  | 114,487 |
Balance at December 31, 2023 |  | 478,750 |
Net activity during 2024 |  | — |
Balance at December 31, 2024 |  | $ | 478,750 |
Schedule of the Estimated Amortization Expense | The following table presents the estimated amortization expense schedule related to amortizable intangible assets. These amounts will be recorded as "Intangibles amortization expense" within the noninterest expense section of the consolidated statements of income. These estimates are subject to change in future periods to the extent management determines it is necessary to make adjustments to the carrying value or estimated useful lives of amortizable intangible assets.
($ in thousands) |  | Estimated Amortization Expense
2025 |  | $ | 5,672 |
2026 |  | 4,705 |
2027 |  | 3,950 |
2028 |  | 3,197 |
2029 |  | 2,443 |
Thereafter |  | 2,937 |
Total |  | $ | 22,904 |
Schedule of Servicing Assets at Fair Value | A summary of the key assumptions used in the discounted cash flow method utilized to estimate the fair value of the SBA servicing assets were as follows:
|  | December 31, 2024 |  | December 31, 2023
Prepayment rate assumption: |  |  |  |
Weighted average |  | 19.89% |  | 19.05%
Range |  | 10.69% - 35.20% |  | 9.27% - 33.14%
Discount rate: |  |  |  |
Weighted average |  | 12.91% |  | 16.36%
Range |  | 5.49% - 18.92% |  | 11.19% - 22.51%
Servicing cost |  | 0.40% |  | 0.40%
Schedule of SBA Servicing Assets | The following table presents the changes in the SBA servicing assets (included in "Other assets" in the Company's consolidated balance sheet) for each period indicated.
($ in thousands) |  | December 31, 2024 |  | December 31, 2023
Beginning balance, net |  | $ | 3,350 |  |  | $ | 4,004 |
Add: New servicing assets |  | 954 |  |  | 702 |
Less: Amortization expense and impairment charges |  | (1,699) |  |  | (1,356) |
Ending balance, net |  | $ | 2,605 |  |  | $ | 3,350 |

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