CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Common stock, par value (in USD per share)	$ 0.001	$ 0.001	$ 0.001
Preferred stock, par value (in USD per share)	0.001
Series A Preferred Stock
Preferred stock, par value (in USD per share)	0.001	0.001
Preferred Stock | Series A Preferred Stock
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001	$ 0.001