Derivatives and Hedging Activities (FV of Derivative Financial Instruments and Classification on Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	$ 16,437	$ 16,697
Derivative, Fair Value, Net	(8,720)	(9,630)
Liability Derivatives	203,647	225,648
Commitments, Fair Value Disclosure	262	204
Forward TBA Mortgage Contracts	9	64
Forward Sales Agreements	78	35
Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	16,708	16,965
Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Liability Derivatives	16,520	16,765
Interest rate swaps [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	0	0
Liability Derivatives	8,720	9,630
Interest rate swaps [Member] | Derivatives designated as hedges [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives
Interest rate swaps [Member] | Derivatives designated as hedges [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Liability Derivatives	8,720	9,630
Loan level swaps [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	15,958	16,301
Liability Derivatives	15,979	16,340
Loan level swaps [Member] | Derivatives not designated as hedges [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	15,958	16,301
Loan level swaps [Member] | Derivatives not designated as hedges [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Liability Derivatives	15,979	16,340
Foreign exchange contracts [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives	479	396
Liability Derivatives	463	390
Foreign exchange contracts [Member] | Derivatives not designated as hedges [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Asset Derivatives		396
Foreign exchange contracts [Member] | Derivatives not designated as hedges [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Liability Derivatives	463	390
Notional Amount Maturing [Member] | Buys Foreign Exchange Sells Us Currency [Member] | Foreign exchange contracts [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative, Fair Value, Net		396
Notional Amount Maturing [Member] | Buys Foreign Exchange Sells Us Currency [Member] | Foreign exchange contracts [Member] | Derivatives not designated as hedges [Member] | Other Assets [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative, Fair Value, Net	479
Notional Amount Maturing [Member] | Buys Us Currency Sells Foreign Exchange [Member] | Foreign exchange contracts [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative, Fair Value, Net		(390)
Notional Amount Maturing [Member] | Buys Us Currency Sells Foreign Exchange [Member] | Foreign exchange contracts [Member] | Derivatives not designated as hedges [Member] | Other Liabilities [Member]
Fair value of derivative financial instruments as well as their classification on the balance sheet
Derivative, Fair Value, Net	$ (463)