Loans and Leases (Troubled Debt Restructuring Loans) (Tables) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	5
Recorded investment (as of period end)	$ 1,682
Increase in allowance (as of period end)	$ 601
Commercial And Industrial [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	1
Recorded investment (as of period end)	$ 500
Increase in allowance (as of period end)	$ 331
Commercial Real Estate: Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of contracts | contract	4
Recorded investment (as of period end)	$ 1,182
Increase in allowance (as of period end)	$ 270