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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table presents goodwill as of the dates presented:
| December 31,
(dollars in thousands) | 2020 |  | 2019
Balance at beginning of year | $ | 371,621 |  |  | $ | 287,446 |
Additions | 1,803 |  |  | 84,175 |
Balance at End of Year | $ | 373,424 |  |  | $ | 371,621 |
Summary of Intangible Assets | The following table presents a summary of intangible assets as of the dates presented:
| December 31,
(dollars in thousands) | 2020 |  | 2019
Gross carrying amount at beginning of year | $ | 31,052 |  |  | $ | 21,898 |
Additions | 288 |  |  | 9,154 |
Accumulated amortization | (22,665) |  |  | (20,133) |
Balance at End of Year | $ | 8,675 |  |  | $ | 10,919 |
Summary of Expected Amortization Expense for Finite-Lived Intangibles Assets | The following is a summary of the expected amortization expense for finite-lived intangible assets, assuming no new additions, for each of the five years following December 31, 2020 and thereafter:
(dollars in thousands) | Amount
2021 | $ | 1,780 |
2022 | 1,518 |
2023 | 1,319 |
2024 | 1,151 |
2025 | 820 |
Thereafter | 2,087 |
Total | $ | 8,675 |

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