Annual report pursuant to Section 13 and 15(d)

Geographical Information - Revenue, Net by Geographic Area (Detail)

v3.6.0.2
Geographical Information - Revenue, Net by Geographic Area (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Revenue, net:    
Revenue, net $ 132,499 $ 166,858
UNITED STATES    
Revenue, net:    
Revenue, net 86,748 120,598
International [Member]    
Revenue, net:    
Revenue, net $ 45,751 $ 46,260