v2.4.0.8
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2014
Series A
Dec. 31, 2013
Series A
Sep. 30, 2014
Series B
Dec. 31, 2013
Series B
Sep. 30, 2014
Series C
Dec. 31, 2013
Series C
Sep. 30, 2014
Series D
Dec. 31, 2013
Series D
Redeemable convertible preferred stock, par value (in dollars per share)     $ 0.001 $ 0.001 $ 0.001 $ 0.001 $ 0.001 $ 0.001 $ 0.001 $ 0.001
Redeemable convertible preferred stock, shares authorized     0 10,033,976 0 5,057,901 0 4,429,601 0 4,069,352
Redeemable convertible preferred stock, shares issued     0 10,033,976 0 5,057,901 0 4,429,601 0 3,979,730
Redeemable convertible preferred stock, shares outstanding     0 10,033,976 0 5,057,901 0 4,429,601 0 3,979,730
Preferred stock, par value (in dollars per share) $ 0.001 $ 0.001                
Preferred stock, shares authorized 5,000,000 0                
Preferred stock, shares issued 0 0                
Preferred stock, shares outstanding 0 0                
Common stock, par value (in dollars per share) $ 0.001 $ 0.001                
Common stock, shares authorized 200,000,000 60,000,000                
Common stock, shares issued 40,346,564 7,629,133                
Common stock, shares outstanding 40,346,564 7,629,133