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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The following table presents goodwill as of the dates presented:
| December 31,
(dollars in thousands) | 2019 |  | 2018
Balance at beginning of year | $ | 287,446 |  |  | $ | 291,670 |
Additions(1) | 84,175 |  |  | — |
Other adjustments | — |  |  | (4,224 | )
Balance at End of Year | $ | 371,621 |  |  | $ | 287,446 |
(1)Management is continuing to evaluate the purchase accounting fair value adjustments for the DNB merger. Any changes in preliminary estimates will be adjusted in goodwill in subsequent periods, but not extending beyond one year from the date of acquisition.
Summary of Intangible Assets | The following table presents a summary of intangible assets as of the dates presented:
| December 31,
(dollars in thousands) | 2019 |  | 2018
Gross carrying amount at beginning of year | $ | 21,898 |  |  | $ | 22,114 |
Additions (1) | 9,154 |  |  | 80 |
Other adjustments | — |  |  | (296 | )
Accumulated amortization | (20,133 | ) |  | (19,297 | )
Balance at End of Year | $ | 10,919 |  |  | $ | 2,601 |
(1) Management is still evaluating the intangible asset valuation due to the final independent valuation report not being complete. Any changes in preliminary estimates will be adjusted in goodwill in subsequent periods, but not extending beyond one year from the date of acquisition.
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, 2019 and thereafter:
(dollars in thousands) | Amount |
2020 | $ | 2,421 |
2021 | 1,738 |
2022 | 1,474 |
2023 | 1,274 |
2024 | 1,110 |
Thereafter | 2,902 |
Total | $ | 10,919 |

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