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Goodwill and Other Intangible Assets | 12 Months Ended
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Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets (In Thousands) Changes in the carrying amount of goodwill during the years ended December 31, 2023 were as follows:
| Community Banks |  | Insurance |  | Total
Balance at December 31, 2021 | $ | 936,916 |  |  | $ | 2,767 |  |  | $ | 939,683 |
Additions to goodwill from the Southeastern Commercial Finance, LLC acquisition | 6,608 |  |  | — |  |  | 6,608 |
Additions to goodwill from the Continental Republic Capital, LLC acquisition | 45,417 |  |  | — |  |  | 45,417 |
Balance at December 31, 2022 | $ | 988,941 |  |  | $ | 2,767 |  |  | $ | 991,708 |
Measurement period adjustments to goodwill from the Continental Republic Capital, LLC acquisition | (43) |  |  | — |  |  | (43) |
Balance at December 31, 2023 | $ | 988,898 |  |  | $ | 2,767 |  |  | $ | 991,665 |
The following table provides a summary of finite-lived intangible assets as of the dates presented:
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
December 31, 2023 |  |  |  |  |
Core deposit intangible | $ | 82,492 |  |  | $ | (68,383) |  |  | $ | 14,109 |
Customer relationship intangible | 7,670 |  |  | (2,984) |  |  | 4,686 |
Total finite-lived intangible assets | $ | 90,162 |  |  | $ | (71,367) |  |  | $ | 18,795 |
December 31, 2022 |  |  |  |  |
Core deposit intangible | $ | 82,492 |  |  | $ | (64,339) |  |  | $ | 18,153 |
Customer relationship intangible | 7,670 |  |  | (1,647) |  |  | 6,023 |
Total finite-lived intangible assets | $ | 90,162 |  |  | $ | (65,986) |  |  | $ | 24,176 |
Core deposit intangible amortization expense for the years ended December 31, 2023, 2022 and 2021 was $4,044, $4,941 and $5,861, respectively. Customer relationship intangible amortization expense for the year ended December 31, 2023, 2022 and 2021 was $1,337, $181 and $181, respectively. The estimated amortization expense of finite-lived intangible assets for the five succeeding fiscal years is summarized as follows:
| Core Deposit Intangible |  | Customer Relationship Intangible |  | Total
2024 | $ | 3,498 |  |  | $ | 1,192 |  |  | $ | 4,690 |
2025 | 3,102 |  |  | 1,048 |  |  | 4,150 |
2026 | 2,899 |  |  | 860 |  |  | 3,759 |
2027 | 2,775 |  |  | 628 |  |  | 3,403 |
2028 | 1,836 |  |  | 483 |  |  | 2,319 |

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