Junior Subordinated Debentures Issued To Capital Trusts (Schedule Of Outstanding Junior Subordinated Debentures And The Related Trust Preferred Securities Issued By Each Trust) (Details) (USD $)			12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2010 VNB Capital Trust I [Member]	Dec. 31, 2010 GCB Capital Trust III [Member]	Dec. 31, 2011 GCB Capital Trust III [Member]	Dec. 31, 2011 Junior Subordinated Debentures [Member] VNB Capital Trust I [Member]		Dec. 31, 2010 Junior Subordinated Debentures [Member] VNB Capital Trust I [Member]	Dec. 31, 2011 Junior Subordinated Debentures [Member] GCB Capital Trust III [Member]		Dec. 31, 2010 Junior Subordinated Debentures [Member] GCB Capital Trust III [Member]	Dec. 31, 2011 Trust Preferred Securities [Member] VNB Capital Trust I [Member]		Dec. 31, 2011 Trust Preferred Securities [Member] GCB Capital Trust III [Member]
Schedule Of Outstanding Junior Subordinated Debentures And The Related Trust Preferred Securities Issued [Line Items]
Carrying value	$ 185,598,000	$ 186,922,000				$ 160,478,000	[1]	$ 161,700,000	$ 25,120,000	[1]	$ 25,200,000
Contractual principal balances			157,000,000	24,700,000		157,024,000			24,743,000
Face value			152,300,000	24,000,000								152,313,000		24,000,000
Annual interest rate						7.75%	[2]		6.96%	[2]		7.75%	[2]	6.96%	[2]
Stated maturity date						Dec. 15, 2031			Jul. 30, 2037
Initial call date						Nov. 07, 2006			Jul. 30, 2017
Issuance date												November 2001		July 2007
Distribution dates												Quarterly	[3]	Quarterly	[3]
Unamortized purchase accounting premium					$ 377,000
Spread over variable rate					1.40%

[1] The carrying value for GCB Capital Trust III includes an unamortized purchase accounting premium of $377 thousand.

[2] Interest on GCB Capital Trust III is fixed until July 30, 2017, then resets to 3-month LIBOR plus 1.4 percent. The annual interest rate excludes the effect of the purchase accounting adjustments.

[3] All cash distributions are cumulative.