XML 50 R39.htm IDEA: XBRL DOCUMENT v3.20.2
Property and Equipment, Net - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Property Plant And Equipment [Abstract]        
Depreciation and amortization expense $ 3.7 $ 3.8 $ 10.7 $ 8.3