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Subsequent Events - Additional Information (Detail) - Subsequent Event [Member] - Comunibanc [Member]	Jul. 01, 2022 USD ($) shares
Subsequent Event [Line Items]
Payments to acquire businesses, gross	$ 25,000,000.0
Business acquisition, transaction costs	$ 46,100,000
Common Shares [Member]
Subsequent Event [Line Items]
Business acquisition, equity interest issued or issuable, number of shares | shares	985,000
Business acquisition, equity interest issued or issuable, value assigned	$ 21,100,000
Civista Common Shares [Member]
Subsequent Event [Line Items]
Amount of cash received in conversion of shares	$ 30,130
Stockholders' equity note, stock split, conversion ratio	1.1888

X

- Definition

Amount of cash received in conversion of shares.

+ References

No definition available.

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- Definition

Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

+ References

No definition available.

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- Definition

Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

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X

- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=126975305&loc=d3e6927-128479

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-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 4
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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