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Goodwill and Other Intangible Assets | 9 Months Ended
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Sep. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets | Goodwill and Other Intangible Assets (In Thousands) The carrying amounts of goodwill by operating segments for the nine months ended September 30, 2024 are set forth in the table below.
| Community Banks |  | Insurance |  | Total
Balance at January 1, 2024 | $ | 988,898 |  |  | $ | 2,767 |  |  | $ | 991,665 |
Sale of the insurance agency | — |  |  | (2,767) |  |  | (2,767) |
Balance at September 30, 2024 | $ | 988,898 |  |  | $ | — |  |  | $ | 988,898 |
The following table provides a summary of finite-lived intangible assets as of the dates presented:
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
September 30, 2024 |  |  |  |  |
Core deposit intangibles | $ | 82,492 |  |  | $ | (71,046) |  |  | $ | 11,446 |
Customer relationship intangible | 7,670 |  |  | (3,878) |  |  | 3,792 |
Total finite-lived intangible assets | $ | 90,162 |  |  | $ | (74,924) |  |  | $ | 15,238 |
December 31, 2023 |  |  |  |  |
Core deposit intangibles | $ | 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 |
Current year amortization expense for finite-lived intangible assets is presented in the table below.
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
| 2024 |  | 2023 |  | 2024 |  | 2023
Amortization expense for: |  |  |  |  |  |  |
Core deposit intangibles | $ | 862 |  |  | $ | 977 |  |  | $ | 2,664 |  |  | $ | 3,103 |
Customer relationship intangible | 298 |  |  | 334 |  |  | 894 |  |  | 1,003 |
Total intangible amortization | $ | 1,160 |  |  | $ | 1,311 |  |  | $ | 3,558 |  |  | $ | 4,106 |
The estimated amortization expense of finite-lived intangible assets for the year ending December 31, 2024 and the succeeding four years is summarized as follows:
| Core Deposit Intangibles |  | 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 | 2,774 |  |  | 628 |  |  | 3,402 |
2028 | 1,836 |  |  | 483 |  |  | 2,319 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-30/tableOfContent Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 20 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/350-20/tableOfContent + Details
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