Other Real Estate Owned (Narrative) (Details) (OREO [Member], USD $) In Millions, unless otherwise specified		3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012 Minimum [Member]	Jun. 30, 2012 Maximum [Member]
Real Estate Properties [Line Items]
Loss sharing agreements amount, 80% on assets acquired	$ 275.0
Zero percent for losses on acquisition		275.0	467.2
80% reimbursement for loss on acquisition	$ 467.2