Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 days	Dec. 31, 2010	Dec. 31, 2009	May 20, 2011	Nov. 14, 2008
Summary Of Significant Accounting Policies [Abstract]
Shareholders require to qualify REIT	100
Percentage of preferred stock issued by each REIT	20.00%
Common stock dividend rate, percentage				5.00%
Cash reserve or deposits	$ 19.2	$ 16.8
Premises and equipment, useful life, minimum (in years)	3
Premises and equipment, useful life, maximum (in years)	40
OREO and repossessed assets total	22.4	12.2
Loans deemed to be past due after number of days	90
Foreclosed Assets Acquired In FDIC-assisted transactions	6.4	7.8
Anti-dilutive common stock options and warrants	$ 6.4	$ 6.9	$ 7.2
Senior preferred shares	0	0			300,000
Liquidation preference of preferred stock					$ 1,000
Repurchase of preferred stock, shares			300,000
Preferred stock, dividend rate, percentage			5.00%