XML 91 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Payables And Accruals [Abstract]    
Accrued compensation $ 7,507 $ 5,461
Accrued expenses related to CROs and CMOs 5,502 3,281
Accrued expenses and other current liabilities 1,727 156
Total accrued expenses and other current liabilities $ 14,736 $ 8,898