Fair Value (Reconciliation Of All Assets Measured At Fair Value On A Recurring Basis Using Significant Unobservable Inputs (Level 3)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011 Pooled Trust Preferred Securities Available-For-Sale [Member]	Dec. 31, 2011 Significant Unobservable Inputs (Level 3) [Member]	Dec. 31, 2012 Significant Unobservable Inputs (Level 3) [Member] Pooled Trust Preferred Securities Available-For-Sale [Member]	Dec. 31, 2012 Significant Unobservable Inputs (Level 3) [Member] States And Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning balance		$ 8,400	$ 0	$ 7,327	$ 1,306
Accretion/(amortization) of discount or premium	24	(72)	0	17	7
Payments received		(992)	0	(87)	0
Matured securities				0	(329)
Credit loss write-downs		(888)	0	(476)	0
Increase/(decrease) in fair value of securities		879	0	2,578	0
Transfer in		0	1,306
Ending balance		$ 7,327	$ 1,306	$ 9,359	$ 984