Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2015	Dec. 31, 2014
Convertible preferred stock
Par value per share	$ 0.0001	$ 0.0001
Shares authorized	0	69,716,345
Shares issued	0	69,608,339
Shares outstanding	0	69,608,339
Preferred stock par value per share	$ 0.0001	$ 0.0001
Preferred stock shares authorized	10,000,000	0
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value per share	$ 0.0001	$ 0.0001
Common stock shares authorized	300,000,000	85,000,000
Common stock shares issued	62,290,683	361,997
Common stock shares outstanding	62,290,683	361,997