Fair Value Measurements (Reconciliation Of Subordinate Tax Increment Revenue Bonds Using Significant Unobservable Inputs (Level 3)) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
Fair Value Measurements [Abstract]
Outstanding beginning balance	$ 10,700
Settlement of recalled bonds	(10,700)	[1]
Outstanding ending balance

[1] Settlement of recalled bonds represents the recall of previously issued subordinated tax increment revenue bonds that were available for sale and were replaced with held to maturity subordinated tax increment revenue bonds associated with the exchange transaction in April 2011.