Derivatives and Hedging Activities (Derivative Financial Instruments included in OCI and Current Earnings) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Loss in OCI on derivatives (effective portion), net of tax	$ (177)	$ (3)
Increase Decrease In Fair Value Of Unhedged Derivative Instruments Relating To Residential Loans	(40)	140
Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss in OCI on derivatives (effective portion), net of tax	(177)	(3)
Loss reclassified from OCI into interest expense (effective portion)	(1,148)	(1,414)
Loss recognized in income on derivatives (ineffective portion & amount excluded from effectiveness testing)
Derivatives not designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Changes in fair value of customer related positions	(12)	127
Other Income [Member] | Derivatives not designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Changes in fair value of customer related positions	29	12
Interest Expense [Member] | Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on derivatives (ineffective portion & amount excluded from effectiveness testing)
Other Expense [Member] | Derivatives designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss recognized in income on derivatives (ineffective portion & amount excluded from effectiveness testing)
Other Expense [Member] | Derivatives not designated as hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Changes in fair value of customer related positions	$ (1)	$ (25)