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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 | Dec. 31, 2016 USD ($) securities loans | Dec. 31, 2015 USD ($) securities loans
--- | --- | ---
Troubled debt restructurings: |  |
Number of Loans | loans | 30 | 42
Post-Modification Recorded Investment | $ 13,560 | $ 17,890
Commercial and industrial |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 10 | 10
Post-Modification Recorded Investment | $ 7,058 | $ 8,330
Combination of extension of term and interest rate conession | Commercial real estate: |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 16 | 25
Post-Modification Recorded Investment | $ 6,056 | $ 8,477
Combination of extension of term and interest rate conession | Commercial and industrial |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 10 | 10
Post-Modification Recorded Investment | $ 7,058 | $ 8,330
Combination of extension of term and interest rate conession | Consumer and other: |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 1 | 4
Post-Modification Recorded Investment | $ 8 | $ 349
Interest rate concession | Commercial real estate: |  |
Troubled debt restructurings: |  |
Number of Loans | securities | 1 | 1
Post-Modification Recorded Investment | $ 52 | $ 55
Extension of term | Commercial real estate: |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 1 | 1
Post-Modification Recorded Investment | $ 8 | $ 24
Extension of term | Consumer and other: |  |
Troubled debt restructurings: |  |
Number of Loans | loans | 1 | 1
Post-Modification Recorded Investment | $ 378 | $ 655

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