Loans and Leases (Financing receivables, non accrual status) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Receivables [Abstract]
Nonaccrual loans	$ 35,219	$ 38,675
Nonaccrual troubled debt restructured loans	5,784	4,481
Total nonaccrual loans	41,003	43,156
Accruing loans past due 90 days or more	6	0
Performing troubled debt restructured loans	$ 32,661	$ 21,121