Allowance for Credit Losses - Collateral-Dependent Loans and Leases (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Residential Real Estate [Member]
Financing Receivable, Nonaccrual [Line Items]
Amortized cost basis of collateral-dependent loans	$ 8.1	$ 8.2

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.

No definition available.

Name:	us-gaap_FinancingReceivableNonaccrualStatusLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration