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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	Mar. 31, 2016 USD ($) securities loans	Dec. 31, 2015 USD ($) securities loans
Troubled debt restructurings
Number of Loans | loans	42	42
Recorded Investment	$ 15,629	$ 17,890
Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	11	10
Recorded Investment	$ 6,392	$ 8,330
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	24	25
Recorded Investment	$ 8,179	$ 8,477
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Commercial and industrial
Troubled debt restructurings
Number of Loans | loans	11	10
Recorded Investment	$ 6,392	$ 8,330
Troubled Debt Restructuring, Combination of Extension of Term and Interest Rate Concession [Member] | Consumer and other
Troubled debt restructurings
Number of Loans | loans	4	4
Recorded Investment	$ 343	$ 349
Troubled Debt Restructuring, Interest Rate Concession [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | securities	1	1
Recorded Investment	$ 54	$ 55
Troubled Debt Restructuring, Extension of Term [Member] | Commercial real estate
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 20	$ 24
Troubled Debt Restructuring, Extension of Term [Member] | Consumer and other
Troubled debt restructurings
Number of Loans | loans	1	1
Recorded Investment	$ 641	$ 655

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