Loans And Allowance For Loan Losses (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Jun. 19, 2009
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: Allowance for loan losses, covered			$ (35.0)
Loans held for sale	4.4	3.1
Actual loss period	3 years
Period to sell loans from the date of closing	1 month
Accrued additional interest income	0.7
Cumulative charge-offs against nonaccrual loans	6.2	8.2
Troubled debt restructuring default period	90 days
Troubled debt restructuring Period	12 months
Real Estate Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unpaid principal of mortgage loans serviced for others	401.8	390.7
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of loans to individuals and businesses	35.00%
Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	474.3
Healthcare [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans to individuals and businesses	$ 403.8
Percentage of loans to individuals and businesses	30.00%
Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days for independent appraisals on real estate collateral	30 days
Covered [Member] | Maximum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reimbursement Ratio			95.00%
Covered [Member] | Minimum [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reimbursement Ratio			80.00%