Common and Preferred Stock Common and Preferred Stock, Common Stock Repurchase Program (Details) (Common Stock [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock, Shares, Acquired	0	200,000	400,000