Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Series 2009 Preferred Stock [Member]
Preferred stock, dividend per share	$ 60.00	$ 60.00
Series 2011 Preferred Stock [Member]
Preferred stock, dividend per share	$ 30.00	$ 30.00