XML 50 R38.htm IDEA: XBRL DOCUMENT v3.10.0.1
Intangible Assets, Net - Estimated Amortization of Intangible Assets (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
For the remaining three months ending December 31, 2018 $ 625  
2019 2,500  
2020 2,500  
2021 417  
Total amortizable intangible assets $ 6,042 $ 7,917