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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 | Jun. 30, 2016 USD ($) securities loans | Dec. 31, 2015 USD ($) securities loans
--- | --- | ---
Troubled debt restructurings |  |
Number of Loans | loans | 38 | 42
Recorded Investment | $ 14,005 | $ 17,890
Commercial and industrial |  |
Troubled debt restructurings |  |
Number of Loans | loans | 9 | 10
Recorded Investment | $ 6,195 | $ 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 | 22 | 25
Recorded Investment | $ 6,949 | $ 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 | 9 | 10
Recorded Investment | $ 6,195 | $ 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 | $ 257 | $ 349
Troubled Debt Restructuring, Interest Rate Concession [Member] | Commercial real estate |  |
Troubled debt restructurings |  |
Number of Loans | securities | 1 | 1
Recorded Investment | $ 53 | $ 55
Troubled Debt Restructuring, Extension of Term [Member] | Commercial real estate |  |
Troubled debt restructurings |  |
Number of Loans | loans | 1 | 1
Recorded Investment | $ 16 | $ 24
Troubled Debt Restructuring, Extension of Term [Member] | Consumer and other |  |
Troubled debt restructurings |  |
Number of Loans | loans | 1 | 1
Recorded Investment | $ 535 | $ 655

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