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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Troubled Debt Restructurings by Modification Type) (Details) $ in Thousands	Sep. 30, 2016 USD ($) securities loans	Dec. 31, 2015 USD ($) securities loans
Troubled debt restructurings
Number of Loans | loans	36	42
Recorded Investment	$ 13,890	$ 17,890
Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	8	10
Recorded Investment	$ 6,224	$ 8,330
Combination of extension of term and interest rate concession | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	23	25
Recorded Investment	$ 7,015	$ 8,477
Combination of extension of term and interest rate concession | Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	8	10
Recorded Investment	$ 6,224	$ 8,330
Combination of extension of term and interest rate concession | Consumer and other
Troubled debt restructurings
Number of Loans | loans	2	4
Recorded Investment	$ 577	$ 349
Interest rate concession | Commercial real estate
Troubled debt restructurings
Number of Loans | securities	1	1
Recorded Investment	$ 53	$ 55
Extension of term | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 12	$ 24
Extension of term | Consumer and other
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 9	$ 655

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