LHFI and ACL, LHFI - Additional Information (Details 1) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($) Region	Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Accrued interest receivable	$ 57.5	$ 50.7
Maximum concentration of loan as a percentage of total LHFI	10.00%
Key market regions \| Region	5
Foreclosed residential real estate properties recorded as a result of obtaining physical possession of property	$ 1.3	1.1
Consumer mortgage loans and that formal foreclosure proceedings are in process	$ 2.8	$ 2.9

The maximum concentration for any loan concentration as a percentage of total loans held for investment.

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- Definition

Number of key market regions the entity operates that are included in the qualitative reserve allocation review process.

+ References

No definition available.

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- Definition

Loans and leases receivable, accrual of interest.

+ References

No definition available.

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- References

No definition available.

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- Definition

Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5162-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=124259787&loc=d3e4437-111522

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