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Goodwill and Other Intangible Assets - Summary of Core Deposit Intangibles (Detail) - USD ($) $ in Thousands	12 Months Ended
	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

Accumulated Amortization, Core Deposit Intangibles

+ References

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- Definition

Core deposit intangibles reductions.

+ References

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- Definition

Core Deposit Intangibles

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- Definition

Finite lived intangible assets accumulated amortization addition.

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- Definition

Finite lived intangible assets accumulated amortization reductions.

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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

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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
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
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-Topic 926
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-Section 50
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-Publisher FASB
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