Quarterly report pursuant to Section 13 or 15(d)

Supplemental Information - Summary of Statements of Certain Statements of Cash Flows Amounts (Detail)

v3.20.2
Supplemental Information - Summary of Statements of Certain Statements of Cash Flows Amounts (Detail) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]        
Cash and cash equivalents $ 7,170 $ 66,434 $ 58,610  
Restricted cash 1,434 1,516    
Total cash, cash equivalents, and restricted cash 8,604 67,950 $ 60,038 $ 95,288
Short-term investments 20,802      
Total cash, cash equivalents, restricted cash, and short-term investments 29,406 67,950    
Interest paid $ 1,097 $ 1,108