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Subsequent Events (Details) $ / shares in Units, $ in Billions	Jul. 25, 2024 USD ($) Office $ / shares
Fentura Financial, Inc. [Member]
Subsequent Events [Abstract]
Right to receive cash for each share of common stock (in dollars per share) | $ / shares	$ 1.35
Consolidated total assets | $	$ 4.3
Number of offices acquired | Office	56
Underwritten Public Offering [Member]
Subsequent Events [Abstract]
Period of option to purchase additional shares	30 days
Additional percentage of common stock available for grant to underwriters in offering	15.00%

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- Definition

Additional percentage of common stock available for grant to underwriters in offering.

+ References

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- Definition

Right to receive cash for each share of outstanding common stock under the terms of the merger agreement.

+ References

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- Definition

Represents the number of offices acquired in business combination.

+ References

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- Definition

Period of time granted to underwriters to purchase additional shares at the public offering price, less underwriting discounts and commissions, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount recognized as of the acquisition date for the assets, including goodwill, in excess of (less than) the aggregate liabilities assumed, less the noncontrolling interest in the acquiree.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479907/805-20-50-1

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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