CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Common stock dividend, per share, cash paid	$ 0.36	$ 0.30
Series C Preferred Stock [Member]
Preferred stock, per share	$ 2.36	$ 37.50
Series A Preferred Stock [Member]
Preferred stock, per share	$ 1.0322	$ 0