Loans (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Loans and Leases Receivable, Deferred Income	$ 20.3	$ 19.8
Deposit Liabilities Reclassified as Loans Receivable	1.6	1.5
Goodwill, Purchase Accounting Adjustments	1.5	1.8
Financial Asset Acquired with Credit Deterioration [Member]
Financing Receivable, Credit Quality Indicator [Line Items]
Business Combination, Acquired Receivable, Fair Value	$ 2.5	$ 2.8

Fair value of acquired receivable from business combination, excluding certain loans and debt securities acquired in transfer.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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