Loans and Leases and the Allowance for Loan and Lease Losses (Troubled Debt Restructuring's that Defaulted During the Period) (Details 7) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($) contract	Sep. 30, 2017 USD ($) contract	Sep. 30, 2018 USD ($) contract	Sep. 30, 2017 USD ($) contract
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	40	28	88	57
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 440	$ 456	$ 996	$ 784
Minimum
Information related to loans modified as a TDR
Default Period Past Due Following Modification of Loans in TDR (in days)			60 days
Commercial
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract			0	1
Recorded Investment (as of period ended), TDRs that Defaulted | $			$ 0	$ 49
Commercial | Commercial and Industrial
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract			0	1
Recorded Investment (as of period ended), TDRs that Defaulted | $			$ 0	$ 49
Consumer
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	40	28	88	56
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 440	$ 456	$ 996	$ 735
Consumer | Automobile
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	12	15	32	23
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 266	$ 373	$ 614	$ 551
Consumer | Other
Information related to loans modified as a TDR
Number of Contracts, TDRs that Defaulted | contract	28	13	56	33
Recorded Investment (as of period ended), TDRs that Defaulted | $	$ 174	$ 83	$ 382	$ 184