Quarterly Financial Data (Unaudited)
12 Months Ended
Dec. 31, 2015
Quarterly Financial Information Disclosure [Abstract]  
Quarterly Financial Data (Unaudited)

18. Quarterly Financial Data (Unaudited)

 

     FIRST
QUARTER
    SECOND
QUARTER
    THIRD
QUARTER
    FOURTH
QUARTER
    TOTAL
YEAR
 

2015

          

Revenue

   $ —       $ 184     $ —       $ —       $ 184  

Net loss

     (14,084     (16,176     (16,944     (15,635     (62,839

Net loss attributable to common stockholders

     (14,084     (16,176     (16,944     (15,635     (62,839

Net loss per share attributable to common stockholders—basic and diluted

   $ (0.79   $ (0.86   $ (0.82   $ (0.76   $ (3.09

 

     FIRST
QUARTER
    SECOND
QUARTER
    THIRD
QUARTER
    FOURTH
QUARTER
    TOTAL
YEAR
 

2014

          

Revenue

   $ —       $ —       $ —       $ —       $ —    

Net loss

     (10,804     (11,355     (11,193     (14,587     (47,939

Net loss attributable to common stockholders

     (11,008     (11,355     (11,193     (14,587     (48,143

Net loss per share attributable to common stockholders—basic and diluted

   $ (1.02   $ (0.64   $ (0.63   $ (0.82   $ (3.00

Full year amounts may not sum due to rounding.