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Goodwill and Other Intangible Assets - Summary of Core Deposit Intangibles (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Core Deposit Intangibles [Roll Forward] |  |
Core deposit intangibles, beginning balance | $ 38,240 |
Fully amortized portion | 0 | $ (2,046)
Core deposit intangibles, ending balance | 38,240 | 38,240
Accumulated Amortization, Core Deposit Intangibles [Roll Forward] |  |
Accumulated amortization, gross | (27,688) | (23,616)
Fully amortized portion | 0 | 2,046
Amortization expense | (4,120) | (6,118)
Accumulated amortization, gross ending balance | (31,808) | (27,688)
Core deposit intangibles |  |
Core Deposit Intangibles [Roll Forward] |  |
Core deposit intangibles, beginning balance | 38,240 | 40,286
Core deposit intangibles, ending balance |  | 38,240
Accumulated Amortization, Core Deposit Intangibles [Roll Forward] |  |
Core deposit intangibles, net, ending balance | $ 6,432 | $ 10,552

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- Definition Core deposit intangibles reductions. + References No definition available. + Details
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- Definition Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480265/350-10-S45-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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