Junior Subordinated Debentures (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) trust Rate
Subordinated Borrowing [Line Items]
Percentage ownership interest in subsidiary trusts	100.00%
Number of unconsolidated subsidiary trusts | trust	11
Common securities, approximate percentage of junior subordinated debentures	3.00%
Trust preferred securities, approximate percentage of junior subordinated debentures	97.00%
Period of deferred payment, not to exceed	60 months
Junior Subordinated Debt
Subordinated Borrowing [Line Items]
Average contractual rate | Rate	6.87%
Tier two risk based capital	$ 245.5
Junior Subordinated Debt | Interest rate swaps
Subordinated Borrowing [Line Items]
Notional amount	$ 210.0