Quarterly report pursuant to Section 13 or 15(d)

Condensed Financial Statements - Summary of Components of Interest, Net (Detail)

v3.19.3
Condensed Financial Statements - Summary of Components of Interest, Net (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Condensed Financial Information Of Parent Company Only Disclosure [Abstract]        
Interest expense $ (374) $ (349) $ (1,114) $ (901)
Interest income 406 577 1,410 989
Total $ 32 $ 228 $ 296 $ 88