v3.25.4

Goodwill and Other Intangible Assets - Summary of Core Deposit Intangibles (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, beginning balance	$ 38,240
Fully amortized portion	0	$ 0
Core deposit intangibles, ending balance	38,240	38,240
Accumulated Amortization, Core Deposit Intangibles [Roll Forward]
Accumulated amortization, gross	(31,808)	(27,688)
Fully amortized portion	0	0
Amortization expense	(1,961)	(4,120)
Accumulated amortization, gross ending balance	(33,769)	(31,808)
Core deposit intangibles
Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, beginning balance	38,240	38,240
Core deposit intangibles, ending balance		38,240
Accumulated Amortization, Core Deposit Intangibles [Roll Forward]
Core deposit intangibles, net, ending balance	$ 4,471	$ 6,432

Accumulated Amortization, Core Deposit Intangibles

+ References

No definition available.

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- Definition

Core deposit intangibles reductions.

+ References

No definition available.

+ Details

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- Definition

Core Deposit Intangibles

+ References

No definition available.

+ Details

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- Definition

Finite lived intangible assets accumulated amortization addition.

+ References

No definition available.

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- Definition

Finite lived intangible assets accumulated amortization reductions.

+ References

No definition available.

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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

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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
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-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

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite 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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483154/926-20-50-5

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TRICO BANCSHARES / 10-K