Loans and Leases and Allowance for Credit Losses - General Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Accrued interest receivable, loans	$ 4.7	$ 4.7	$ 6.8
Additional interest income		$ 0.6
Amortized cost of collateral-dependent loans, increase (decrease) during the period	$ (1.7)
Weighted average loan-to-value ratio of collateral dependent loans (as a percent)	93.00%	93.00%
Collateral dependent loans in process of foreclosure	$ 0.0	$ 0.0
Commercial, Residential, and Farm Land Real Estate Portfolio Segment [Member] \| Real Estate Sector [Member] \| 1-4 Family - Closed-End [Member]
Financing Receivable, Past Due [Line Items]
Loan and lease receivable		$ 173.1

Financing Receivable, Accrued Interest Receivable

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Financing Receivable and Net Investment in Lease, Excluding Accrued Interest, Collateral Dependent Loans, Amortized Cost, Increase (Decrease) During Period

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No definition available.

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- Definition

Financing Receivable and Net Investment in Lease, Excluding Accrued Interest, Collateral Dependent Loans, in Process of Foreclosure

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Financing Receivable and Net Investment in Lease, Excluding Accrued Interest, Collateral Dependent Loans, Weighted-average Loan-to-value Ratio

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Amount of additional interest income on financing receivable on nonaccrual status.

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Amount of loan and lease receivable acquired during the period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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