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Goodwill and Other Amortizing Intangible Assets - Estimated Amortization Expense of Core Deposit Intangibles (Detail) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Goodwill And Other Intangibles [Line Items] |  |
2016 | $ 3,433 |
2017 | 2,997 |
2018 | 2,580 |
2019 | 2,435 |
2020 | 2,325 |
Thereafter | 1,089 |
Net Intangible Assets | 14,859 | $ 18,731
Customer list intangible |  |
Goodwill And Other Intangibles [Line Items] |  |
2016 | 69 |
2017 | 42 |
2018 | 15 |
2019 | 7 |
2020 | 4 |
Thereafter | 0 |
Net Intangible Assets | 137 | 234
Customer deposit intangibles |  |
Goodwill And Other Intangibles [Line Items] |  |
2016 | 3,364 |
2017 | 2,955 |
2018 | 2,565 |
2019 | 2,428 |
2020 | 2,321 |
Thereafter | 1,089 |
Net Intangible Assets | $ 14,722 | $ 18,497

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- Definition Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 985 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481283/985-20-50-2 + Details
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