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Derivatives and Hedging Activities (FV of Derivative Financial Instruments and Classification on Balance Sheet) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Total | $ 22,331 | $ 23,072
Total | 198,596 | 160,270
Other Assets [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value | 21,397 | 23,305
Total | 22,761 | 23,305
Other Liabilities [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value | 21,176 | 23,040
Total | 21,916 | 26,313
Interest rate derivatives |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Total |  | 3,273
Interest rate derivatives | Derivatives designated as hedges: [Member] | Other Assets [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Interest Rate Derivative Assets, at Fair Value | 1,364 |
Interest rate derivatives | Derivatives designated as hedges: [Member] | Other Liabilities [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Interest rate derivatives | 740 | 3,273
Loan level derivatives |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Total | 18,629 | 22,470
Total | 18,632 | 22,465
Loan level derivatives | Derivatives not designated as hedges: [Member] | Other Assets [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Loan level derivatives |  | 22,470
Loan level derivatives | Derivatives not designated as hedges: [Member] | Other Liabilities [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Loan level derivatives |  | 22,465
Foreign exchange contracts |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Total | 2,338 | 602
Total | 2,311 | 574
Foreign exchange contracts | Derivatives not designated as hedges: [Member] | Other Assets [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Foreign exchange contracts |  | 602
Foreign exchange contracts | Derivatives not designated as hedges: [Member] | Other Liabilities [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Foreign exchange contracts |  | 574
Mortgage Derivatives | Derivatives not designated as hedges: [Member] | Other Assets [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Interest rate lock commitments | 430 | 233
Forward sales agreements | 0 | 0
Mortgage Derivatives | Derivatives not designated as hedges: [Member] | Other Liabilities [Member] |  |
Fair value of derivative financial instruments as well as their classification on the balance sheet |  |
Interest rate lock commitments | 0 | 0
Forward sales agreements | $ 233 | $ 1

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