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Goodwill and Other Intangible Assets | 12 Months Ended
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Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
GOODWILL AND OTHER INTANGIBLE ASSETS | GOODWILL AND OTHER INTANGIBLE ASSETS The following table presents goodwill as of the dates presented:
| December 31,
(dollars in thousands) | 2021 |  | 2020
Balance at beginning of year | $ | 373,424 |  |  | $ | 371,621 |
Additions | — |  |  | 1,803 |
Balance at End of Year | $ | 373,424 |  |  | $ | 373,424 |
Goodwill represents the excess of the purchase price over the fair value of net assets acquired. Additional goodwill of $1.8 million was recorded during 2020 related to our acquisition of DNB. Refer to Note 2 Business Combinations for further details on the DNB merger. Goodwill is reviewed for impairment annually or more frequently if it is determined that a triggering event has occurred. Based upon our qualitative assessment performed for our annual impairment analysis as of October 1, 2021, we concluded that it is more likely than not that the fair value of the reporting units exceeds the carrying value. In general, the overall macroeconomic conditions and more specifically the economic conditions of the banking industry have improved throughout 2021. No events or circumstances since the November 1, 2021 annual impairment test were noted that would indicate it was more likely than not that goodwill impairment exists. The following table presents a summary of intangible assets as of the dates presented:
| December 31,
(dollars in thousands) | 2021 |  | 2020
Gross carrying amount at beginning of year | $ | 31,340 |  |  | $ | 31,052 |
Additions | — |  |  | 288 |
Accumulated amortization | (24,445) |  |  | (22,665) |
Balance at End of Year | $ | 6,895 |  |  | $ | 8,675 |
Intangible assets of $6.9 million at December 31, 2021 relate to core deposit and wealth management customer relationships resulting from acquisitions. The $0.3 million addition during 2020 related to acquired wealth management customer relationships. We determined the amount of identifiable intangible assets for our core deposits based upon an independent valuation. Other intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable. There were no triggering events in 2021 requiring an impairment analysis to be completed. Amortization expense on finite-lived intangible assets totaled $1.8 million, $2.5 million and $0.8 million for 2021, 2020 and 2019. 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, 2021 and thereafter:
(dollars in thousands) | Amount
2022 | $ | 1,518 |
2023 | 1,319 |
2024 | 1,151 |
2025 | 820 |
2026 | 671 |
Thereafter | 1,416 |
Total | $ | 6,895 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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