CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Common stock dividend, per share, cash paid	$ 0.48	$ 0.42
Series A Preferred Stock [Member]
Preferred stock (in usd per share)	1.1016	1.1016
Series B Preferred Stock [Member]
Preferred stock (in usd per share)	1.2891	0.8330
Series C Preferred Stock [Member]
Preferred stock (in usd per share)	$ 1.1250	$ 0.4167