LHFI and ACL, LHFI - Additional Information (Details 1) $ in Millions	12 Months Ended
Dec. 31, 2025 USD ($) Region	Dec. 31, 2024 USD ($)
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Accrued interest receivable	$ 64.1	$ 64.7
Maximum concentration of loan as a percentage of total LHFI	10.00%
Key market regions \| Region	6
Loans and Leases Receivable, Related Parties	$ 31.4	$ 33.1
New loan advances to related party	310.0
Loan repayment by related party	307.7
Decrease in loans due to changes in executive officers and directors	$ (4.1)

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

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(e))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483326/850-10-50-1

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- Definition

Reflects the amount of new advances made to related parties in the form of loan and lease receivables.

+ References

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- Definition

Amount of increase (decrease) in loans and leases receivable due from related parties.

+ References

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- Definition

Amount of cash inflow from related parties which reduce the amount of loans and leases receivable due from related parties.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-12

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7)(e)(1)(i))
-SubTopic 210
-Topic 942
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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