Other Real Estate Owned (Components Of Other Real Estate Owned Expense) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Other Real Estate Owned [Abstract]
Operating expense	$ 5,441	$ 5,849	$ 5,794
Provision for losses	10,385	20,139	28,216
Net (gain)/loss on transfer and disposal	(5,243)	(9,977)	2,065
Total other real estate owned expense	$ 10,583	$ 16,011	$ 36,075