Quarterly report pursuant to Section 13 or 15(d)

Research and Development Agreements - Schedule of Condensed Consolidated Balance Sheet (Detail)

v3.10.0.1
Research and Development Agreements - Schedule of Condensed Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Sep. 30, 2018
Jan. 01, 2018
Dec. 31, 2017
ASSETS      
Other current assets $ 4,385   $ 19
Total assets 151,960   90,391
LIABILITIES AND STOCKHOLDERS’ EQUITY      
Accumulated deficit (88,070)   (64,471)
Total liabilities and stockholders' equity $ 151,960   $ 90,391
ASC 2014-09      
ASSETS      
Other current assets   $ 73  
Total assets   90,445  
LIABILITIES AND STOCKHOLDERS’ EQUITY      
Accumulated deficit   (64,417)  
Total liabilities and stockholders' equity   90,445  
Effect of Adoption of ASC 606 | ASC 2014-09      
ASSETS      
Other current assets   54  
Total assets   54  
LIABILITIES AND STOCKHOLDERS’ EQUITY      
Accumulated deficit   54  
Total liabilities and stockholders' equity   $ 54