Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Detail)

v3.5.0.2
Stockholders' Equity - Additional Information (Detail) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Equity [Abstract]    
Common stock, shares issued 37,607,636 37,396,456
Common stock, shares outstanding 37,607,636 37,396,456
Common stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares authorized 25,000,000 25,000,000
Preferred stock, par value $ 0.0001 $ 0.0001
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Undistributed earnings of foreign subsidiary $ 0