Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Geographical Information - Revenue, Net by Geographic Area (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Revenue, net:    
Revenue, net $ 26,009 $ 42,912
UNITED STATES    
Revenue, net:    
Revenue, net 17,590 29,692
International [Member]    
Revenue, net:    
Revenue, net $ 8,419 $ 13,220