Loans and Leases (Troubled debt loans with payment defaults) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014 loans	Sep. 30, 2013 loans	Sep. 30, 2014 loans	Sep. 30, 2013 loans
Financing Receivable, Modifications [Line Items]
Number of Loans	1	1	1	4
Recorded Investment	$ 60	$ 13,000	$ 60	$ 17,837
Commercial
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1	0	2
Recorded Investment	0	13,000	0	17,670
Commercial real estate
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	0
Recorded Investment	0	0	0	0
Commercial and Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of Loans	0	1	0	2
Recorded Investment	0	13,000	0	17,670
Agricultural and agricultural real estate
Financing Receivable, Modifications [Line Items]
Number of Loans	1	0	1	0
Recorded Investment	60	0	60	0
Residential real estate
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	2
Recorded Investment	0	0	0	167
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0