Quarterly report pursuant to Section 13 or 15(d)

Common Stock - Additional Information (Detail)

v3.4.0.3
Common Stock - Additional Information (Detail) - $ / shares
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Equity [Abstract]    
Common stock, shares authorized 150,000,000 150,000,000
Common stock, par value $ 0.0001 $ 0.0001
Common stock, shares issued 37,605,827 37,605,134
Common stock, shares outstanding 37,605,827 37,605,134
Common stock issued upon the cashless exercise of a warrant 693