Stockholders' Equity - Common, Preferred and Treasury Shares Activity (Details)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 Common Stock	Jun. 30, 2013 Treasury Stock	Jun. 30, 2013 Series G1 Preferred Stock	Dec. 31, 2012 Series G1 Preferred Stock	Jun. 30, 2013 Series G2 Preferred Stock	Dec. 31, 2012 Series G2 Preferred Stock
Beginning balance				1,000	1,000	1,000	1,000
Beginning balance	435,328	435,328
Shares issued for preferred stock dividends		2
Treasury stock repurchase	33,389		33,389
Treasury stock retirements	(33,389)	(33,389)	(33,389)
Ending balance				1,000	1,000	1,000	1,000
Ending balance	401,941	401,941