CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares		12 Months Ended
	Dec. 16, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Dividend declared common share, per share	$ 0.15	$ 0.60	$ 0.60	$ 0.56
Series A Preferred Stock
Dividend declared, per preferred share		2.156252	2.156252	2.156252
Series B Preferred Stock
Dividend declared, per preferred share		1.5625	1.5625	$ 1.5625
Series C Preferred Stock
Dividend declared, per preferred share		$ 1.768578	$ 1.768578